Final Exam

https://docs.google.com/document/d/1aFxvzzZhGwU0NhQQUkga4cUfcVePhGUUGlDj8x-o09Y/edit#

1. http://www.epa.gov/climatechange/ last updated 9/8/09 by: The U.S. climate change policy information is taken from White House and Department of State fact sheets, speeches and reports.
 2. http://topics.nytimes.com/top/news/science/topics/globalwarming/index.html uppdated oct. 9 2010 by

Subhankar Banerjee for the Associated Press

sewer treatment blog

1. at the sewer plant i learned that by the time the waste gets there its not like all poopy but more of a grayish liquid. also i learned that they have several diff processes to clean and filter the water. one was by adding micro-organisms to at the waste ant another is to slowly turn the water and as the sediment falls its slowly sweeped up by a big arm. i also learned that they had to add oxygen to the water for the micro-organisms to live and duplicate.
2. yes, i will recycle more often now that i know where the plants are and how empty most of the containers were empty. although if there were a closer plant and one that was able to recycle more that bottles and paper would be far more efficient.

city talk

1. Kristy Reinecke, she was the City Clerk
2. they replaced all the old pipes with new one with better storm drains and a filtering system before it dumps off into the river.
3. it will stop sewage/waste from getting into the river and river life. thus saving the environment
4. it will greatly reduce runoff nitrates from gettting into the river and killing the fish but thats only if it comes from the pipes if runoff occurs anywhere else it wil still have major affects
5. that the consruction would be done!!!!!
6. my biobottle has just started to grow grass despite being watered with pop daily
7. i have been talking to my managers about recycling plastics to improve the environment.
8. we have made great progress and its really strting to come around

water testing connection

1. nitrates and mcdonalds
2. we plan on reducing nitrates and pollutants emitted from mcdonalds. we also want to study the affects it plays on the environment.by doing so we can measure how better the environment would be if fast food places became more earth friendly. also we plan to measure the run off of waste and it affects on the environment
3. we will have several diff biobottle environments and one control bottle. in one bottle we will Be testing the effects of plastic in the environment. in the second we're testing the effects of pop in the soil. and finally in the third we are testing the effects of food left out in the environment to rot
4. nitrates can have several effects on the environment as well as on our health. one health affect in sever cases can be a decrease in hemoglobin(cells ability to carry oxygen). another is causing problems in thyroid function which can lead to weight gain, goiter development and bulging of the eyes. this connects to our test in a few ways. one is that in runoff it can get not only in to the aquatic life but also in our ground water. so therefor it will eventually all make it back to our bloodstream or damage the environment by killing of aquatic life.  http://www.lenntech.com/periodic/elements/n.htm

water treatment blog

1. To treat water and filter the water there are several different processes. one way is they run the water through a sereis of screens. another is to run it though a certain rock (like charcoal) to cleanse it and than backwash it. they also would put a series of grates in the holding tanks to further filter it. the most interesting thing is how they would add several chemicals to enhance the process.
  they would add three different chemicals to the water.one was chlorean, they would add this to clean and kill the bacteria and other harmful toxins. the second chemical was phosphate they did this to coat the pipes to reduce run off from the metal. for example if little kids are exposed to lead it can lead to several deformities. the last chemical they added was flouride to make childrens teeth and bones stronger. also the lab was pretty interesting. they had to know several chemistry laws and rules to test things which adds a whole other side to how the water is treated.

how is water filtered

1.Reverse osmosis (RO) is a filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane.Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other substances from the water molecules. This is the reverse of the normal osmosis process, in which the solvent naturally moves from an area of low solute concentration, through a membrane, to an area of high solute concentration.
2. water is filtered by removing toxins and waste from the water purifying it from the solids that were once in it
3. a) how long does it take to filter a gallon of water
 b) what is the best method for filtering water