Term
Chapter 3 Water Treatment |
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A specific source of pollution that can be identified, such as a pipe |
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Easier to prevent than clean up. Ex.of water pollution: Pesticides (used to kill organisms that damage crops) |
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Nutrients in a lake build up and lead to an increase in algae growth. The runoff from fertilizers pollutes lakes and ponds and increases the eutrophication process. |
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Runoff that contains pollution |
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Pesticides from farm fields and oil from roads. |
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Measures acidity. pH of pure water is 7, which is neutral (neither acid nor base). |
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Ex. Household waste water and the wastes in it. |
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Contains high levels of calcium and magnesium |
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Used by homes not connected to public sanitation sewers to dispose of their sewage. |
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Common sources of drinking water |
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Rivers, Reservoirs, and Aquifers |
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Underground layers of rock or sediment (that hold water) from which people obtain their water. |
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The amount of one substance in a certain volume of another substance. |
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Used to kill disease-causing micro-organisms. It is added to drinking water to make it safer. |
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Major sources of fresh water pollution |
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Human and animal waste, Agricultural chemicals, and Industrial wastes |
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The first stage of treating wastewater which involves the removal of solid particles. |
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The first step in treating drinking water which involves passing water through a series of screens. |
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