Water Treatment
The world has become a better and cleaner place to live with the development of water purification systems. Water purification involves many processes. There are many negative health results from not having clean water. The WHO is responsible for creating guidelines on what's acceptable water purification techniques. Water purification involves many processes."Water purification is the removal of contaminants from untreated water to produce drinking water that is pure enough for its intended use, most commonly human consumption”. The combination of the following is what has to be followed in order to clean water. Pre-chlorination is one step that eliminates many waterborne illnesses. Adding chlorine to water, it helps reduce bacteria and algae. Aeration is another important step it involves passing the liquid through air. Another step is Coagulation, in this step the dirty water particles accumulate at the top or bottom of water (sedimentation) and then is vacuumed. Desalination is way to get salt out of water. Many different disinfectants are put into water to purify it.
There are many negative health results from not having clean water. "Waterborne illnesses are estimated to cause 1.8 million deaths each year". Preparation of food using infected water is the main reason for diarrheal disease: "accounts which accounts for an estimated 4.1% of the total DALY global burden of disease and is responsible for the deaths of 1.8 million people every year. In my country (Dominican Republic) we have to be very cautious about drinking water and eating produce. We have to boil all of our cooking water, drink bottled water and wash all fruits and vegetables with chlorine.
The WHO is the World Heath Organization and they are responsible for making sure that water worldwide is being cleaned. In this website this organization explains its plans in making sure that each country is cleaning water the right way. http://www.who.int/water_sanitation_health/dwq/gdwq3_2.pdf there is a framework that has plans such as guideline and requirements for safe drinking water, safety plans and surveillance to make sure its working.
In conclusion, the world has become a better and cleaner place to live with the development of water purification systems. Fortunately the US has a great cleaning system and I don't have to worry about drinking water from the faucet. Unsafe drinking water has been said to be the leading cause of sickness and deaths in the world. The truth of the matter is that we are made of 60% water and we need it for every aspect of survival. It should be our number one priority to help keep water clean for everyone.
Monday, August 9, 2010
Sunday, August 8, 2010
Mrs. Rosemary Practice 1-7
Relationships
Practice 1:
1. also 2.For one thing 3.In addition 4.First 5.Third
Practice 2:
1. Previously 2.Then 3.during 4.before 5.while
Practice 3:
A-Main idea: America's most popular meat a hundred years ago was pork for various reasons.
1. Pigs grew quickly.
2. Pigs required almost no attention because they took care of themselves.
3. Pig meat could be cheaply preserved.
B-Main idea: Various theories explain the again process.
1. Our bodies simply wear out.
2. As cells repeatedly divide.....
3. Our body chemistry loses its delicate balance over the years.
4. Our bodies tend with age to reject some of their own tissues.
Practice 4:
Main idea: The 1960s were a time of profound events in America.
1. In 1963, the assassination of president John Kennedy.
2. In 1965, urban riots moved the long simmering issue of racial equality onto center stage.
3. In 1968, spread of protest across the country, centering on college campuses.
Practice 5:
Many people through three stages in reacting to their unemployment.
1. They experience shock followed by relief.
2. A strong effort to find a new job.
3. Self-doubt and anxiety and many questions.
Practice 6:
There are several steps to remembering your dreams.
1. Make up your mind to remember your dreams.
2. Put a pen and notebook near your bed.
3. Turn off your alarm before you go to sleep.
4. When you wake up and remember a dream, write it down immediately.
Practice 7:
1. A
2. A
3. B
4. B
5. B
6. A
7. A
8. B
9. A
10. B
Practice 1:
1. also 2.For one thing 3.In addition 4.First 5.Third
Practice 2:
1. Previously 2.Then 3.during 4.before 5.while
Practice 3:
A-Main idea: America's most popular meat a hundred years ago was pork for various reasons.
1. Pigs grew quickly.
2. Pigs required almost no attention because they took care of themselves.
3. Pig meat could be cheaply preserved.
B-Main idea: Various theories explain the again process.
1. Our bodies simply wear out.
2. As cells repeatedly divide.....
3. Our body chemistry loses its delicate balance over the years.
4. Our bodies tend with age to reject some of their own tissues.
Practice 4:
Main idea: The 1960s were a time of profound events in America.
1. In 1963, the assassination of president John Kennedy.
2. In 1965, urban riots moved the long simmering issue of racial equality onto center stage.
3. In 1968, spread of protest across the country, centering on college campuses.
Practice 5:
Many people through three stages in reacting to their unemployment.
1. They experience shock followed by relief.
2. A strong effort to find a new job.
3. Self-doubt and anxiety and many questions.
Practice 6:
There are several steps to remembering your dreams.
1. Make up your mind to remember your dreams.
2. Put a pen and notebook near your bed.
3. Turn off your alarm before you go to sleep.
4. When you wake up and remember a dream, write it down immediately.
Practice 7:
1. A
2. A
3. B
4. B
5. B
6. A
7. A
8. B
9. A
10. B
Chapter 4,Ms. Kristi
Writing Assignment 1, time order
From Monday to Friday and one weekend day I have to work a job from 6:30a.m. to 3:30 p.m.. The first thing I do is wake up at 6:00, then brush my teeth and wash my face. I then fix myself a small a breakfast. After I eat I go to my basement and get dressed. Finally, I grab my keys and go to work. It only takes me about 20 minutes to get ready and ten minutes to drive to work, I have an advantage of living close to work.
Wrting Assignment 3, order of importance
I had the worst day of my life about two months ago on a Friday. First, I went to work and forgot my wallet at home. Next I was at work and my personal working machine broke down. Next I had a problem with my barber, I drove 20 minutes to go see him and he told me he could't help me because he had to be somewhere. Another problem that day was when I went to buy dog food my car trunk broke. Above all it started pouring rain hard on my way home. I felt like there were a flood of demons attacking me all that day.
From Monday to Friday and one weekend day I have to work a job from 6:30a.m. to 3:30 p.m.. The first thing I do is wake up at 6:00, then brush my teeth and wash my face. I then fix myself a small a breakfast. After I eat I go to my basement and get dressed. Finally, I grab my keys and go to work. It only takes me about 20 minutes to get ready and ten minutes to drive to work, I have an advantage of living close to work.
Wrting Assignment 3, order of importance
I had the worst day of my life about two months ago on a Friday. First, I went to work and forgot my wallet at home. Next I was at work and my personal working machine broke down. Next I had a problem with my barber, I drove 20 minutes to go see him and he told me he could't help me because he had to be somewhere. Another problem that day was when I went to buy dog food my car trunk broke. Above all it started pouring rain hard on my way home. I felt like there were a flood of demons attacking me all that day.
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