Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Filtration System note-taking The Filtration System Step 1 Raw sewage from cities sewers funnel into the plant Step 2 To remove suspended objects such as hair and plastics, the water is moved through a strainer Step 3 The water is then moved to a chamber where fine particles of sand and mud sinks to the bottom Step 4 The water is moved into another chamber where floating oil and grease are skimmed off the water mechanically Stage 5 The final stage is spraying the water into the air where it will pick up an abundant supply of oxygen It is here that nature is called upon to do its job. With the supply of Oxygen, bacteria is introduced. The bacteria’s job is to break down sewage such as urine, feces, and kitchen wastes. The bacteria is turned into sludge The sludge is sold to farmers who use it on their fields (another topic) At the end of the line, crystal free disease free water. You can drink this water. It is poured into Lake Ontario 2 Problems with the system Two major problems 1. Our cities are growing faster than we are building sewage waste sites. 2. Toxic Waste getting into our food supply. In animals it appears to be affecting reproduction and creating deformities In humans it is creating cancers and other deadly diseases. Water is affecting the food chain How? Through Biomagnification Animals and plants cannot get rid of toxins so they build up in their system. As we consume an animal or plant we take on that poison. As a result it is magnified in our system and builds and builds Letter Write a letter to mom, dad, or a friend about what you have learned about water pollution, biomagnification and its negative effects on animals and humans