What Are the 7 Diatomic Elements

Diatomic molecules consist of two atoms bonded together. In contrast, monatomic elements consist of single atoms (e.g., Ar, He). Many compounds are diatomic, such as HCl, NaCl, and KBr. Diatomic compounds consist of two different elements. There are seven pure  elements that form diatomic molecules. Key Takeaways: Diatomic Elements Diatomic elements are pure elements that form molecules consisting of two atoms bonded together.There are seven diatomic elements: hydrogen, nitrogen, oxygen, fluorine, chlorine, iodine, bromine.These elements can exist in pure form in other arrangements. For example, oxygen can exist as the triatomic molecule, ozone. This is a list of the seven diatomic elements.  The seven diatomic elements are: Hydrogen (H2)Nitrogen (N2)Oxygen (O2)Fluorine (F2)Chlorine (Cl2)Iodine (I2)Bromine (Br2) All of these elements are nonmetals, since the halogens are a special type of nonmetallic element. Bromine is a liquid at room temperature, while the other elements all gases under ordinary conditions. As the temperature is lowered or pressure is increased, the other elements become diatomic liquids. Astatine (atomic number 85, symbol At) and tennessine (atomic number 117, symbol Ts) are also in the halogen group and may form diatomic molecules. However, some scientists predict tennessine may behave more like a noble gas. While only these seven elements routinely form diatomic molecules, other elements can form them. However, diatomic molecules formed by other elements are not very stable, so their bonds are easily broken. How to Remember the Diatomic Elements The elements ending with -gen including halogens form diatomic molecules. An easy-to-remember mnemonic for the diatomic elements is: Have No Fear Of Ice Cold Beer

Reflection On Personal Experience - 853 Words

Personal Reflection 1 Reflecting on personal and professional experiences I have become to understand that although there is vast scholarly literature identifying the key determinants of physical activity as demographics, social, cultural and environmental factors (Amireault, Godin, and Vezina-Im, 2013), there are also many psychological (mental health) and health dependent (physical, structural, and functional) determinates that have been introduced to me during my final year of study. All factors can be internal, external, community, organisational, interpersonal and personal (****). As a future practitioner, it is vital that I understand and identity these determinates as enablers and barriers to improve client health outcomes. So why†¦show more content†¦Financial restrictions can limit choices (gym membership costs) and or create opportunities (adventure holidays and weekends). Cultural enables and barriers encompasses ethnicity, religion, beliefs, values, and cultural norms. After traveling for many years, I realised how lucky I was to grow up in a country which values physical activity and sport as not all cultures are founded on an active lifestyle of beaches, football, cricket and outdoor life. This is however changing in recent generations and the introduction to technology. Culture influences the way we think and act, we predominately tend to adapt to the surrounding cultural environment due to the human desire to ‘fit in’ or ‘be popular’. Environmental enablers and barriers consist of climate, location, safety features, access to facilities, and weather. Weather influences me greatly, becoming less active in winter or in poor weather than summer because of discomfort, inconvenience and lack of motivation. Where someone lives geographically influences access to facilities and safe environments. I have lived in the country and on the coast and found I was more active in the coastal environment, using the beach every day, having access to 24 hour gyms and sporting centres. Professional practice As an Exercise Physiologist student studying the prevention and management of chronic disease and injuries through the use of physical activity, I feel it is important to understand what physical activityShow MoreRelatedPersonal Experience Reflection1577 Words   |  7 PagesA Reflective Analysis of My Personal Experience These are exciting times in education as compared to my times in public education in the District of Columbia. This is also true for my much earlier experiences during my undergrad studies and graduate studies at Clark College and then Clark Atlanta University. Also true is that I have not changed as a life-long learner. I still love school and the challenge of academic rigor. What has changed is the 21st-century ideology of how academics worksRead MorePersonal Reflection : My Personal Experience1625 Words   |  7 Pagesbecause it is so easy to become tangled in our worries, stress, and busy schedules. Reflection can differ depending on the individual. For example, reflection to one individual can be accomplished through attending mass and having time to pray to God. For another individual, reflection could consist of participating in meditation or yoga. No matter how it is done it can be beneficial to one’s health and well-being. Reflection consists of taking time to ca refully think and so it is necessary to make timeRead MorePersonal Reflection On My Personal Experience1467 Words   |  6 Pagesmy life. In this diary, I will examine various leadership models that have moulded the way I approach the thought of authority and I will concentrate on the lead characters, which I possess myself. The focused will be given on reflections on my personal history and experience during my study period, during my first job at bank and when I worked in the Nursing Home. Leadership development was begun in the home environment and developed inside me from childhood. My parents were first person to teachRead MoreA Reflection On My Personal Experience1390 Words   |  6 PagesISS Reflection Paper I would never aspire to be king because it is much more interesting to be the king-maker. This is my informed judgment based on the sufficiency of my experience and the intrinsic value I derive from analytical and creative problem solving processes. I opine Strategic Advisor and Communicator are synonymous with my definition of â€Å"king-maker,† both roles I have experience and some success with. Nevertheless, I am fortunate to have many years of experience to reflect on and guideRead MorePersonal Reflection On Teaching Experience906 Words   |  4 PagesReflection on Teaching Experience Our Final project for EDU 581- Clinical Teaching in Health professions was to build on our Educational experience in EDU 497- Teaching and Learning in Higher Education and Health professions in planning and implementing a lesson related to Health Professions Education. This lesson design and implementation was so important for me, because it was my first official lesson to teach. So, the guidelines given by the course instructors in the course modules helped me toRead MorePersonal Experience : My Personal Reflection944 Words   |  4 Pages I consider my personal level of competence I had when I started this course was one of awareness and inexperience. In other words, I was aware of the cultural inequities that surround me and the field in which I work. As this course moved forward from week to week, I paralleled the reading material with my work experiences. It should be noted that I have little diversity in my caseload as far as race. However, I do have diversity in my caseload to do with life circumstances. These circumstancesRead MorePersonal Experience Reflection Paper1417 Words   |  6 Pagesin September Previous Experience:​ This is going to be my weakest point, but I believe that I have to get more experience somewhere, so here it goes! (Keep in mind, I don’t have any proof for any of these, but I hope you can trust me!) FearPvP - Moderator (My name was ClickRaids back then) [2 years ago]- Player base was around 100-300 players before the new owners when I was staff - This was a factions server. It had a decent player base and gave me most of the experience I have today. I startedRead MorePersonal Reflection On Religious Experience1006 Words   |  5 PagesReligious experience varies from someone to another. We all experience the numinous at some point in our life even we know It or not. Sometimes it feels like an overwhelming feeling that no human being can handle. It could be an experience of a feeling and wonder in the presence of the beyond God. The numinous is the awareness of human nothingness when faced with the holy. According to Otto, the numinous is an experience of being acted upon by something outside of ourselves, a wholly other. It makesRead MoreAn Reflection Of My Personal Experience1313 Words   |  6 Pagesintuition is very much like spiritual discernment. For those that are gifted with both, intuition and spiritual discernment you can pretty much take what they say to the bank, it will happen or has happened just like they said it would. In my personal experience, I work with a lot of women on a day to day basis. In my particular ministry scope I help hurting women, particularly those that have been rejected or wounded in some way. Some of these women have been hurt deeply and must be handled with greatRead MorePersonal Experiences and Their Impact on Counseling: A Reflection2092 Words   |  8 PagesReflection paper: Personal experiences and their impact upon counseling Part 1 As is true of most people, it is difficult for me to apply a Freudian lens to my experiences growing up simply because I do not remember that far back in my life. According to Freud, every family experiences what he calls the family romance of the Oedipus complex or the Electra complex. The young infant desires his or her mother and resents and wants to supplant the father in the mothers affections. The boy resolves

Critical Reflection Is Essential For Developing An...

Critical reflection is essential for developing an adaptive pedagogy in that critical reflection encourages the sharing of knowledge, skills and experiences. Furthermore, critical reflective practice is a form of ongoing learning that involves engaging with questions of philosophy, ethics and practice. Additionally, documenting the daily events in the ECE sector is an important aspect of being a professional and are a compulsory requirement for meeting the NCAC (2005) guidelines for high quality early childhood education and care (National Childcare Accreditation Council, 2005.) Therefore it is becoming increasingly important for practitioners to have the ability to critically reflect on pedagogical practice and the development of child agency in effective learning contexts. Pedagogies, which are reflected in elements of teaching actions and practices, such as types of documentation and methods of grouping children, should be relevant to the context and consistent with the service’s philosophy and approaches to curriculum. This means that ‘†¦approaches and pedagogies will differ from one setting to the next as they take into account staff and family perspectives, the service philosophy and analysis of the context’s potential and challenges†¦Ã¢â‚¬â„¢(USQ, 2016). As educators refine their philosophy they will also adjust pedagogies to reflect new approaches. Understandings of children and childhood should lead practitioners to continuously investigate how they transform approachesShow MoreRelatedTransformative Learning Theory— an Overview5690 Words   |  23 Pagesabout transformative learning theory. 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Reflection on project experiences related to the developmental stages of teams (Developing an innovation strategy and policy 2. Best practices in evaluating the success of your team in completing each stage (Encouraging initiative and a willingness to take responsibility) 3. TheRead MoreMobile Learning7438 Words   |  30 Pagesfacilitators, which they would otherwise be unable to access. As wireless protocols become more common and accessible, learners will be able to participate in this international Internet communication. Appeal The ability to appeal to a learner is critical for his/her learning process. Mitchell and Doherty (2003) believe that the majority of m-Learning target audiences lack basic skills because they are not interested in taking part in traditional education and training. 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The first concerns the researcher’s views of the nature of the research: Is the inquiry technical and neutral, intending to conform to traditional research within her discipline, or is it controversial and critical, with an 97 04-Marshall-4864.qxd 98 2/1/2006 3:16 PM Page 98 DESIGNING QUALITATIVE RESEARCH explicit political agenda? Second, How does she construe her location, her positioning relative to the participants: Does she view herself as distantRead MoreStrategy Safari by Mintzberg71628 Words   |  287 Pagestransformation, which incorporates much of the huge prescriptive literature and practice on strategic change. These schools have appeared at different stages in the development of strategic management. A few have already peaked and declined, others are now developing, and some remain as thin but nonetheless significant trickles of publication and practice. We shall describe each school in turn, with our own interpretation of its development and its difficulties, before concluding with our final integrative commentsRead MoreDeveloping Management Skills404131 Words   |  1617 Pageshelps you actively study and prepare material for class. Chapter-by-chapter activities, including built-in pretests and posttests, focus on what you need to learn and to review in order to succeed. Visit www.mymanagementlab.com to learn more. DEVELOPING MANAGEMENT SKILLS EIGHTH EDITION David A. Whetten BRIGHAM YOUNG UNIVERSITY Kim S. Cameron UNIVERSITY OF MICHIGAN Prentice Hall Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid

Essay Mandatory Dress Codes for All Schools! - 485 Words

Dress codes have been an issue lately in some schools. Most kids are against it but I believe that there should be dress codes in all schools. This would be a good idea because it would reduce violence and bullying, eliminate the problem of wearing hats or jackets and they are less expensive. If there were dress codes in school, it would eliminate violence and bullying. If there was a kid who liked to wear a different style of clothing then others, then he would probably get teased or maybe even get beaten up. Also, it reduces violence and makes students behave better because it makes everyone equal, bringing all of the students to the same level. A dress code brings us together, like an athletic team. Were unified, we stand for†¦show more content†¦Lastly, gang members would not be able to wear their colours or symbols, which could reduce gang fights. Dress codes would also eliminate the problem of wearing hats or jackets in school. If teenagers wore jackets in school, you would not be able to tell if they were hiding something in it such as a weapon. Also if they wore jackets with hood on them, you would not be able to identify if they belong at this school or not. The incident at Korah is an example of this. At that school they do not have a dress code and a random guy walked in the girls bathroom and killed a girl. Hats in school are disrespectful and sometimes they could be worn as a gang symbol. Lastly, a school uniform would be less expensive to buy. The families with low-income could buy a school uniform for a cheap price instead of wearing hand me downs or already used clothing and not risk their kids getting made fun of. Also if you buy a uniform it eliminates the hassle of deciding which clothes to wear or buy for school. Lastly if kids buy uniforms they would judge people for what is on the inside rather then what they are wearing. The dress code is one thing that has served to lower crime, violence, and increase attendance and increase learning at a lot of schools. And I think a dress code is itself an important statement, because we want our young children, whether theyre poor or rich or middle class, when theyre in school to define themselves primarily inShow MoreRelatedThe Correlation Between School Uniforms and Violence Essay1243 Words   |  5 PagesIs the absence of school uniforms leading to an up rise of violence between children in public schools? According to the National School Safety Center’s Report on School Associated Violent Deaths, â€Å"Since the 1992-1993 school year, two-hundred seven were shooting victims† (Kelly n pag). According to the U.S. Department of Education’s National Center for Education Statistics (NCES), â€Å"10% of all public schools had one or more serious violent crimes (murder, rape, sexual battery, suicide, physical attackRead MoreSchool Dress Code819 Words   |  4 PagesEnglish 101 Mrs. Stansell December 6 2007 Title: In all schools over the United States students are fighting over clothing. Some children have no respect for themselves when it comes to what they are wearing. They dress like it is a night club or like they are out on a nice sunny day at the beach. This is not appealing to everyone. This is one reason why many schools have gone to school dress codes or uniforms. Dress codes help prevent fighting, many unwanted distraction, and embarrassingRead MoreWhy we need dress codes, argumentative essay MLA.1452 Words   |  6 PagesSchools Need Dress Codes Dress codes in public schooling have recently been a controversial issue nation-wide. Mandatory uniform policys measures and emphasize the benefits of students on specific behavioral and academic outcomes. The arguments for the issue are just as strong as those against the issue. There are two main points surrounding school uniforms: performance and school and reduction of violence due to uniformity. Uniforms are argued to positively affect student safety by: loweringRead MoreSchool Uniforms Should Be Required For Their Freedom Of Expression1548 Words   |  7 PagesSchool uniforms were first introduced in England, in the 16th century. In the beginning it was only for charity purposes, but clothing started to have a different meaning throughout the centuries. The early purposes of wearing school uniforms were not much different than that of today’s. Same clothing can represent togetherness and may also help students no to get distracted. This research paper will take a closer look at why schools should mandate such a policy, supported by details and statisticsRead MoreArgument Against School Uniforms993 Words   |  4 Pagesfor school? School uniform is what makes it easy! A set of clothing that is mainly worn, school uniform is one of the schools policy and recommendation. Generally worn in elementary and middle school, this outfit is composed of specific colors of lon g or short pants and shirts for boys, sometimes with a tie. Girls usually wear a dress or a blouse worn either with a skirt or pants, all however have the same colors. This dress code determines even the type of shoes that should be worn at school. SchoolRead MoreSchool Uniforms And Its Placebo Effect Essay1458 Words   |  6 PagesDecember 2016 School Uniforms and its Placebo Effect School uniforms predominately used in private schools are now becoming increasingly common in public schools throughout the United States. During the 2013- 2014 schoolyear, one in five public schools required students to wear uniforms, which is an increase from the 2003-2004 school year in which one in eight schools required the use of uniforms (US Department of Education and US Department of Justice) first documented use of required dress in educationRead MorePersuasive Essay On School Uniforms979 Words   |  4 PagesThe age old argument of whether or not uniforms and dress codes should be enforced in schools seems to never conclude. The issue of appropriate clothing in schools is controversial and provoking. Many argue that abolishing a student’s choice in their attire violates their freedom of expression. Students use what they wear to express themselves; their clothing gives them a sense of a unique style and identity. Others argue that permitting students to wear whatev er clothing they like can create unnecessaryRead MoreSchools Are For Learning, Not Fashion Essay556 Words   |  3 PagesI thought school was for learning; not for a fashion show. A dress code should be required in all public schools to promote better student behavior, decrease costs to parents and increase school safety by eliminating gang-related clothing. A uniform dress code would curve discipline problems and distractions while improving overall student behavior. By requiring students to adhere to a dress code, learning will be enhanced. For this purpose, a dress code will implement discipline toward learningRead MoreEssay On School Uniforms1388 Words   |  6 PagesStevens Miss. Windish English II 16 October 2017 Dress for Success Many schools have decided that having school uniforms is the best for their students. Other schools don’t want to limit the student’s freedom of speech. Schools can’t decide which is the best - have uniforms or not. School uniforms should be mandatory for all students considering the cost, right to freedom and academic success. One reason why school uniforms should be mandatory is the cost. It is more economical for people becauseRead MorePersuasive Essay On School Uniforms1422 Words   |  6 PagesCatholic elementary school, middle school, and high school. I found it easier to attend and focus on school when wearing the same clothes as everyone else. Today, tiny southern towns even to the nations largest cities, public school uniforms have become so common this year that in many areas, they are no longer the exception, but the rule (Lewin â€Å"Dress for Success: Public School Uniforms†). Imagine a parent’s comfort in knowing their child was being treated as an equal at school each and every day

Great Teachers Free Essays

The good teacher explains. The superior teacher demonstrates. The great teacher inspires. We will write a custom essay sample on Great Teachers or any similar topic only for you Order Now † Teachers – those dedicated people who educate, encourage, support, discipline and prepare us for the road ahead. They are the masters, the leaders. They are the artist that takes each class to a higher level. Their dedication has always resulted in producing something new. If I think about them humbly enough, they contribute to a great evolution, they are players in the great ocean. Teaching is deep. It’s more than just imparting information. Anyone can do that. Google can do that. Wisped can do that. But great teachers do it differently. Great teachers have always understood that imagination is more important than knowledge. They go beyond the text book and have that intangible characteristic that can inspire students to do great things and become great people. Instead of just teaching major revolution in history, formulae in math,verses in English, maps in geography, laws in science and Kevin in Hindi, they will make us think and force us to look at the world through the eyes of the people involved in a subject. They will challenge us to think radically and analytically. They share their insights and knowledge that allows us to explore the infinite amount of knowledge. They will engineer learning experiences that maneuver the students into the driver’s seat and then the teachers get out of the way. Because they understand that students learn best by personally experiencing learning. And as the proverb goes â€Å"Teachers open the door. You enter by yourself. † One such great teacher I met was Namesakes Bradshaw, my Intermediate English teacher. She was no academic. She was not hot on action research, she had her own peculiar style or way of titivating her students. She taught the most important skills within the most important subject. She reminded us of the power of language and the delights of literature. She encouraged us to ask questions,for being prepared to argue your case, and doing so in a style that is powerfully appropriate. She relished the eccentrics in the class , the naughty ones as well as the paragons. The naughty one often only behaved for her ( I was among the naughty ones P). She had something individual to say to each student. She said when she was disappointed about something a student has done, but mostly she celebrated success. Her art of teaching was so compelling that I once broke down into tears in the middle of the class reading â€Å"A Doctors Journal Entry†. Personally, she had a powerful emotional impact on me. Used to walk out of her lessons feeling I can do things – can read better, write better, think better, learn better. Her purpose was basically the same as any good leader, to provide purpose, direction and motivation. She is simply a great teacher. I owe her a great deal – not least, my gratitude. She is more important than she’ll ever realize. Thus a great teachers are the ones who are differentiated from the rest. They have the qualities of patience, kindness, resourcefulness, and open-mindedness. They listen , make their students feel secure and pushes them to succeed. A great teacher always has a sense of purpose, a positive attitude, a smile on her face and an encouraging word for her students. She explains that career choices and options are many. But your decision on career should be what you enjoy doing for the rest of your life. She motivates her students to chase their dreams and to always put their best foot forward. She will motivate and encourage to reach for the moon, so that if you miss it, you will tallest land among the stars. How to cite Great Teachers, Papers

Entires of an American Soldier fictional Essay Example For Students

Entires of an American Soldier fictional Essay These are journal entries of an American Solider named Private John G. Watson who was sent to Afghanistan to fight the war on terrorism. These are the last few entries in his journal before his convoy was ambushed and he was killed. He was only 21. August 2, 2001: So, I just got my draft slip in the mail. Looks like I am on my first assignment already. I mean, I just joined the army 5 months ago. President Bush is sending troops out to Afghanistan to fight the war on terrorism. He is sending us out there to find the terrorists that were responsible for the devastating attacks on the world trade center on September 11th. All my friends that have joined the army with me are going as well, we may even be in the same convoy. I am really not ready for this, I am very nervous about this. But it is my duty as a solider of the American Army. Well, I better get some sleep; I leave tomorrow to go out there, to that frightening Middle East place. August 3, 2001: This morning a bus came to the barracks to pick us up. The bus was full of guys like me. The youngest guy was only 20. Not much younger than me! We are risking our lives to preserve the lives of the other millions of Americans that would rather sit at home and hope for peace, to us where we are doing something about it. I cant believe I am doing this. Right now I am on a C-130 cargo plane with about 70 other soldiers. We are heading out to a US base near Lwara in Afghanistan. We still havent received our specific orders. We dont know who will be in each platoon. Well, we are almost to the base now, I will write back once I get the chance. August 4, 2001: The flight was over 12-hours, I tried to sleep, but I couldnt with all the thoughts of what may happen to me out here. So, when we landed we didnt land on a runway it was more like a desert floor. When we got off the plane the heat hits you like a punch in the stomach. We were directed to our barracks and to our bunks. Then, the commander, Col. Nathan R. Barten, talked us to about our mission out here. We each then got our orders. My friend Steve and I got an assignment driving in a hummer with a gun mount as part of a convoy. Some of my other friends are in the same convoy as me, but some of them were just in as foot soldiers. I was glad that some of the guys I knew were in the same group as me. This makes me feel a bit better knowing I wont be alone. Tomorrow we learn about all the equipment that we will be using out here along with all the  training and survival tips we need to know as well. August 5, 2001: Today was a very interesting day. We spent most of the day learning about our equipment. In my training I learned about the controls and techniques of driving a hummer. But I had never learned how to drive this type before. This was one of the newest models, with a gun mount and rocket launchers. I learned about all the driving skills that I would need to use in a combat situation. We even took a bit of target practice with the mounted gun. The sun was unbearable throughout the whole day. One of the most important things that we were told by Col. Nathan was to stay hydrated and to preserve the water we have. .u6f294e3413930b27c2a3cbfd429d3e75 , .u6f294e3413930b27c2a3cbfd429d3e75 .postImageUrl , .u6f294e3413930b27c2a3cbfd429d3e75 .centered-text-area { min-height: 80px; position: relative; } .u6f294e3413930b27c2a3cbfd429d3e75 , .u6f294e3413930b27c2a3cbfd429d3e75:hover , .u6f294e3413930b27c2a3cbfd429d3e75:visited , .u6f294e3413930b27c2a3cbfd429d3e75:active { border:0!important; } .u6f294e3413930b27c2a3cbfd429d3e75 .clearfix:after { content: ""; display: table; clear: both; } .u6f294e3413930b27c2a3cbfd429d3e75 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u6f294e3413930b27c2a3cbfd429d3e75:active , .u6f294e3413930b27c2a3cbfd429d3e75:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u6f294e3413930b27c2a3cbfd429d3e75 .centered-text-area { width: 100%; position: relative ; } .u6f294e3413930b27c2a3cbfd429d3e75 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u6f294e3413930b27c2a3cbfd429d3e75 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u6f294e3413930b27c2a3cbfd429d3e75 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u6f294e3413930b27c2a3cbfd429d3e75:hover .ctaButton { background-color: #34495E!important; } .u6f294e3413930b27c2a3cbfd429d3e75 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u6f294e3413930b27c2a3cbfd429d3e75 .u6f294e3413930b27c2a3cbfd429d3e75-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u6f294e3413930b27c2a3cbfd429d3e75:after { content: ""; display: block; clear: both; } READ: During the 1940s, American society became increasingly consumerist and more competitive than ever before EssayAfter we did the training with the hummer we had a lecture about all the dangers of the desert out here. This was chilling stuff. One of the scariest things he told us was about the dangerous animals that live out here. He asked us, How many of you checked your boots before you put them on? No one did, and then he showed us this very poisonous scorpion that almost killed one of his other men because he didnt check his boots before he put them on. He showed us all types of different animals and insects; spiders, snakes, beetles and lizards. He showed us one spider t hat was big as a freaking dinner plate! Scariest looking thing I have ever seen in my whole life. Now I feel really paranoid about sleeping out here. August 7, 2001: Yesterday we just did more technique training with the hummer and some stamina drills. Yesterday 6 soldiers passed out from heat exhaustion. It gets to be about 100 degrees Fahrenheit out here in the peak of the day. Today they gave us a day off. They let us relax from the few days of hard training. Though there is not much do to out here, in fact nothing to do out here, we still had a great day. Some guys just slept or wrote home to love ones and some of us got together to throw the football around. Today at dinner, which is just an MRE prepared in large doses, we were told the real reason we had the day off today. It looks like tomorrow we are actually going to go out on mission. After dinner we had a briefing about what each platoon would be doing. I think that we got lucky; my convoy is just escorting a large truckload of cargo and troops out to another base. Hope all goes well tomorrow. August 8, 2001: We woke up early this morning, before the sun rose. It was cold, so cold you could actually see your breath. Everyone did what he or she were suppose to do, gear up and get into their places. We left early to avoid any hassle from the enemies. We drove fast to shorten  the time. I lead the convoy because the hummer that I was driving had a GPS system in it. About 5 hours into the drive we were going through a small town when we started to take fire from a building. I did what I was told, to keep driving no matter what. The firing continued, then I heard shots coming from atop me, my gunner was shooting at the building where the firing may have come from. I also heard it from behind too. Steve came down from the gun to reload it. When he peaked back up and behind he yelled, Stop! I looked behind me to see that the other trucks had fallen way behind. I turned around to go back and help protect it. It turns out that the truck full of men had got one of its tires blown out. We were tak ing some pretty heavy fire from the villagers. Dont they know that we are trying to help them? As I pulled up to the truck I found that the other hummer that was protecting the back of the convoy had flipped over. I told Steve to stay and help protect the truck as I went to see if the others in the hummer were all right. I ran up to the flipped hummer, as I did I saw the two men inside start to crawl out. They had blood on them, just cuts and bruises, no bullet wounds. I helped them out and we ran over to the truck and they jumped in the back. I went to the front to check on the progress of fixing the flat tire. They had gotten it fixed and we all ran back to our vehicles to continue on. As I jumped in to hummer, I sat there and listened for a second. There was silence. The gunfire had stopped. I then realized that it had stopped as soon as I pulled up the truck. We must have killed them. I put it out of my mind and we continued towards the base. When we arrived at the base, the two from the flipped hummer were taken to hospital. We reported in, and we accessed the damage. There were about 50 bullet holes in my hummer alone. We were told that we are going to stay the night here, then drive bac k tomorrow morning. I hope that I can sleep tonight. .ua6caaabe2b961f5f708378e043bb15c1 , .ua6caaabe2b961f5f708378e043bb15c1 .postImageUrl , .ua6caaabe2b961f5f708378e043bb15c1 .centered-text-area { min-height: 80px; position: relative; } .ua6caaabe2b961f5f708378e043bb15c1 , .ua6caaabe2b961f5f708378e043bb15c1:hover , .ua6caaabe2b961f5f708378e043bb15c1:visited , .ua6caaabe2b961f5f708378e043bb15c1:active { border:0!important; } .ua6caaabe2b961f5f708378e043bb15c1 .clearfix:after { content: ""; display: table; clear: both; } .ua6caaabe2b961f5f708378e043bb15c1 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ua6caaabe2b961f5f708378e043bb15c1:active , .ua6caaabe2b961f5f708378e043bb15c1:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ua6caaabe2b961f5f708378e043bb15c1 .centered-text-area { width: 100%; position: relative ; } .ua6caaabe2b961f5f708378e043bb15c1 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ua6caaabe2b961f5f708378e043bb15c1 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ua6caaabe2b961f5f708378e043bb15c1 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ua6caaabe2b961f5f708378e043bb15c1:hover .ctaButton { background-color: #34495E!important; } .ua6caaabe2b961f5f708378e043bb15c1 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ua6caaabe2b961f5f708378e043bb15c1 .ua6caaabe2b961f5f708378e043bb15c1-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ua6caaabe2b961f5f708378e043bb15c1:after { content: ""; display: block; clear: both; } READ: The Red Tree analysis essayAugust 9, 2001: It is early morning, I didnt sleep well because I was too nervous about today. I have a really bad feeling that I cant shake. As backup, we are going to head back to our base along with another hummer. Hope this goes smooth. I woke up the voices of several people talking, I heard someone say, Hes not going to make it. As I woke up I was told not to move, I had been badly wounded. I asked for my journal to write down my last thoughts. They told me  that I dont have long. I asked about my comrade Steve. They told me that a bullet wound in the throat had killed him. This war is horrible; we are trying to fight an invisible enemy. Now, I am going to die too. Are we going to be known for what we had done? Had we done anything of importance? We had given our lives to keep others safe. I wish the people safe in their homes could see what we are sacrificing for them. At 5:24pm on August 9, 2001 Private John G. Watson was pronounced dead from loss of blood and third degrees burns to over 40% of his body. As he was heading back to his base his hummer was ambushed. His hummer was hit by a swarm of bullets. Private Steven E. Sampson was hit in the neck from a bullet and was killed instantly. John was hit in the arm twice but he continued to drive. A small grenade flipped the hummer and caught fire. Unfortunately, the base was 2 hours away still and not much could be done till they arrived at the base, which was too late for John. He was declared dead shortly after treatment was attempted on him. In his last few minutes he managed to write the last portion in his journal. John was never announced as a hero of the war, just another casualty

Industrial Waste Water Treatment for Textile - MyAssignmenthelp

Question: Discuss about theIndustrial Waste Water Treatment for Textile. Answer: Introduction: Industrial waste water treatment is the process used in industries to effectively treat effluents and waste water that come out as efflux from by-product of industries. This helps in reusing the water and protecting the environment from contamination. This helps to preserve the recreational values of water and also reduce negative health impact in community. Many types of pollutants are found in waste water such as decayed organic matter, excessive nutrient, chorine compounds, metals and other toxic substance. All this can have a harmful impact on the ecosystem and acts as threat for human health, aquatic life and wildlife too. Hence, treating water and waste is necessary in all industries. This report particularly analyzes the process of waste water treatment in textile industries and identified the problem in the process. It also seeks to find solution effectively treat the water produced from such industries. Waste Water Treatment Process and Problems Involved: Waste Water Produced in Textile Industry Textile industry is the highest growth industry that contributes to the economic growth of countries. However, the problem seen in these industries that high amount of water is consumed in the production of textiles and it also results in discharge of high amount of waste water. The most important source of contamination is the released of dyes from this industry after fibre dyeing and finishing process. Textile fibres produced in textile industries mainly consists of two types such as the natural fiber and the manufactured fiber. 90% of the organic dye used in industry are utilized in fibers and the rest is released as industry effluent (Pang Abdullah, 2013). The dyeing and finishing processes in this industry is the major contributor to pollution as it requires use of large amounts of chemicals and organic dyes. As water is used as a medium to apply dyes in fabric for finishing, some of the products end up as waste. Most of the waste contains high amount of suspended soli, nitroge n, heavy metals. During the manufacturing process of textiles, many anti-microbial agents resistant to biodegradation are used. Hence, according to environmental legislation, it is necessary to treat the dye-containing effluents before disposal into water bodies (Ozturk et al., 2015). Characteristics of Textile Industry Effluent Textile fiber products are manufactured in textile industries by means of series of mechanical process such as dry treatment and wet treatment. Dry treatment process includes spinning, weaving, knitting and fiber production, whereas the wet treatment process includes pretreatment by desizing, bleaching and mercerizing followed by dyeing, printing and finishing process. Hence, wet treatment requires high consumption of water and application of extensive organic dyes in the dyeing and finishing process resulting in high chance of environmental pollution and health related risk (Savin Butnaru, 2008). Figure 1: Process followed in textile industry. Source: (Information about the textile industry - Efficiency Finder, 2017) The waste water coming out after this process is high in Ph, temperature, toxicity, biochemical oxygen demand, suspended solids and total organic carbon. Textile industry is one of the major source of serious pollution issues. The colour of the dye is not the main reason for problem, rather the breakdown products that the dye releases contributes to toxic and carcinogenic characteristics (Carmen Daniela, 2012). Therefore, textile industry follows various process to treat water and meet legislative requirement for treatment of water and waste water. Figure 2: Characteristics of textile effluent. Source: (Pang Abdullah, 2013). Process Followed for treatment of textile industry effluent and challenges in the process Textile industry follows advanced methods for the treatment including adsorption, ion exchange, membrane filtration, reverse osmosis, ozonation, evaporation and many others. Four level of treatment is used for waste water treatment which are as follows: Use of preliminary treatment by means of physical methods to removes large solids and greases in water. Use of primary treatment by utilizing physical and chemical methods to remove suspended solids and organic matters in waste water. Use of secondary treatment by using biological and chemical methods to eliminate biodegradable organic matter and suspended solids. Use of tertiary methods to remove residual suspended solids. This can be done by means of physical, biological and chemical methods (Verma, Dash, Bhunia, 2012). Many combination of treatment process is used to treat waste water and safely dispose them without causing environmental risk and threats. Although many advanced technique of physical, chemical, electrochemical methods is available for treatment of effluent, many of the methods are time consuming and need large operational areas. Some of the methods have been found to be ineffective in treating toxic elements contained in waste water. For example, the biological treatment by means of aerobic and anaerobic process is not successful because in anaerobic condition, the azo dye is converted to hazardous aromatic amines (Khandegar Saroha 2013). Advanced oxygen process (AOP) is useful to overcome this limitation in other technique as it sufficiently removes organic matters, traceable organic contaminant and inorganic pollutants prior to biological treatment of effluents. Currently, metal oxide semiconductors are used in AOP treatment of waste water containing dye because of its degradatio n efficiency and low toxicity properties. As dye waste water is the reason for environmental and health problems, the innovative approach of AOP was proposed to treat waste water. This process uses the OH radicals to trigger a reaction leading to the breakdown of azo dye molecules into less harmful substances. On the other hand, the semiconductors photocatalyst used in the process promotes wide application of the process, as it is less expensive and does not cause any loss on photocatalytic activity. Currently, titanium oxides, zinc oxide and molybdate has been identified as effective phtocatalysts for the degradation of dye in waste water (Chan et al., 2011). However, this process is not widely used in textile industry because the overall cost is high. Its operating condition is very specific which increased the installation and operating cost. The study by Khandegar Saroha, (2013) gives insight into the process of electrocoagulation for treatment of textile industry effluent. This has been considered effective than other methods because of its versatility and compatibility with the environment. The effluent generated in the sizing, dyeing, fining and scouring process contains salts, dye, alkali and cleaning solvents. The salt released from the effluent may result in soil infertility and damage of aquatic life. Electro-coagulation has been regarded as a simple and effective process for the treatment of waste water and this fact is supported by many research studies (Aoudj et al., 2010) it has helped to remove heavy metals from waste water, on the other hand it also facilitate removal of arsenic, sulfide, nitrate and chromate. This technique is facilitated by the use of current source between metal electrodes and dipping it in the effluent. The metal ions form a wide range of coagulated species that aggregate and absorb dis solved contaminants. The study has been found to be effective when combined with other treatment methods. However, the removal efficiency for pollutants is high in electrocoagulation method compared to other methods. Another study gave the idea that decolorization and detoxification of textile industry effluent can be done by means of Pseudomonas bacteria. Apart from bacterial treatment, fungal treatment is also done in textile industry. However, fungal treatment is not effective because optimum activity of the enzyme is dependent on low pH requirements. Bacterial decolorization process has been considered effective because it involves oxidoreductive enzymes such as laccase and azoreductase. By means of the study on the best strain for biodegradation, it was found that Pseudomonas sp. has the ability to degrade and detoxify textile industry effluent. It helped in eliminating the waste water characteristics of chemical oxygen demand (Telke et al., 2010). On the other hand, Khlifi et al., (2010) proposed the decolorization and detoxification of textile industry wastewater by means of laccase mediator system. However, this study conclude that simple decolorization technique cannot result in detoxifi cation as the industry effluent is till toxic despite the use of most effective synthetic mediators. Chemical coagulation or flocculation technique is also regarded as a technology for removing color in textile waste water. This process involves the addition of chemicals in water to change the physical state of dissolved solids and suspended solids. This facilitates sedimentation process of the waste product. However, this process is sometimes disrupted by the entrapment of large coagulant. Hence, this process can be utilized only in the pretreatment process to remove waste materials in suspended forms that takes much time to settle down. Although the overall cost of this treatment is high, however this process is limited by the production of large amount of sludge in the effluent. In addition, the decolorization process is not effective for all soluble dyes (Verma, Dash, Bhunia, 2012). It can be successful only if small amount of dye is treated, however this cannot be feasible in textile industry where large amount of effluent is generated. Solutions to the Treatment Process The analysis and evaluation of different treatment processes used in the textile industry revealed weakness and limitations of many approaches. This limitation may severely challenges and cause problem in textile industry if waste water treatment is not adequately managed. Hence, it is necessary that an appropriate solution to the weakness is identified to promote efficiency in the waste water treatment process. In relation to the used of laccase mediators for detoxification of waste water, it was found ineffective in eliminating the toxicity levels in water. The natural mediators like acetosyringon can solve this issue. The effectiveness of the mediator can be judges by pre-toxicity screening test by means of bioluminescence test to gain idea about the overall toxicity of waste water and dye effluents in the industry (Khlifi et al., 2010). On the other hand, different technique of decolorizatoon method was also ineffectiveness either due to high cost or due to lack of ineffectiveness in achieving decolorization. Apart from laccase mediator, use of flocculation technique is also challenging because soluble dyes have high solubility. Furthermore, selection of best coagulant is very difficult with the advent of new dyes with complex structure (Verma, Dash, Bhunia, P. (2012). Hence, the solution to overcome these challenges in the treatment process is to use the electro-coagulation technique as a treatment process as it has numerous advantages. It has the potential to destabilize the small colloidal particle and also generate minimum amount of sludge. Furthermore, it is cost effective as it requires no additional cost and it is more readily filterable. The startup time for the operating the technique is also minimum Conclusion: The report on water and waste water treatment process in textile industry summarized the issue of generation of large amount of polluted effluent leading to environmental risk and health concerns for the community. With this issue, identification of the most appropriate treatment process for waste water effluent is critical to facilitate effective removal of waste. The evaluation of various techniques revealed various strength and limitations of the technique. Furthermore, based in the challenges identified in the treatment process, the electro-coagualtion process was considered the most effective in treating waste water effluent. Reference Aoudj, S., Khelifa, A., Drouiche, N., Hecini, M., Hamitouche, H. (2010). Electrocoagulation process applied to wastewater containing dyes from textile industry.Chemical Engineering and Processing: Process Intensification,49(11), 1176-1182. Carmen, Z., Daniela, S. (2012). Textile organic dyescharacteristics, polluting effects and separation/elimination procedures from industrial effluentsa critical overview. InOrganic Pollutants Ten Years After the Stockholm Convention-Environmental and Analytical Update(pp. 55-81). InTech: Croatia. Chan, S. H. S., Yeong Wu, T., Juan, J. C., Teh, C. Y. (2011). Recent developments of metal oxide semiconductors as photocatalysts in advanced oxidation processes (AOPs) for treatment of dye waste?water.Journal of Chemical Technology Biotechnology,86(9), 1130-1158. doi:10.1002/jctb.2636 Information about the textile industry - Efficiency Finder. (2017).Wiki.zero-emissions.at. Retrieved 26 May 2017, from https://wiki.zero-emissions.at/index.php?title=Information_about_the_textile_industry Khandegar, V., Saroha, A. K. (2013). Electrocoagulation for the treatment of textile industry effluent--a review.Journal of Environmental Management,128, 949-963. doi:10.1016/j.jenvman.2013.06.043 Khlifi, R., Belbahri, L., Woodward, S., Ellouz, M., Dhouib, A., Sayadi, S., Mechichi, T. (2010). Decolourization and detoxification of textile industry wastewater by the laccase-mediator system.Journal of Hazardous Materials,175(1), 802-808. Ozturk, E., Karaboyac?, M., Yetis, U., Yigit, N. O., Kitis, M. (2015). Evaluation of integrated pollution prevention control in a textile fiber production and dyeing mill.Journal of Cleaner Production,88, 116-124. Pang, Y. L., Abdullah, A. Z. (2013). Current status of textile industry wastewater management and research progress in Malaysia: a review.CleanSoil, Air, Water,41(8), 751-764. Savin, I. I., Butnaru, R. (2008). Wastewater characteristics in textile finishing mills.Environmental engineering and management journal,7(6), 859-864. Telke, A. A., Joshi, S. M., Jadhav, S. U., Tamboli, D. P., Govindwar, S. P. (2010). Decolorization and detoxification of Congo red and textile industry effluent by an isolated bacterium Pseudomonas sp. SU-EBT.Biodegradation,21(2), 283-296. Verma, A. K., Dash, R. R., Bhunia, P. (2012). A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters.Journal of Environmental Management,93(1), 154. doi:10.1016/j.jenvman.2011.09.012