what causes the level of an aquifer to drop? cite some examples of the effects o
ID: 853659 • Letter: W
Question
what causes the level of an aquifer to drop? cite some examples of the effects of aquifers dropping in level
what would you expect to find dissolved in clean water?
name five kinds of pollution often found in water. give a source for each
what is the superfund? explain how it is used to improve water quality
describe how the bod of wastewater can be lowered
explain how aeration purifies a sample of water containing dissolved organic compounds
what is the difference between biodegradable and nonbiodegradable? If you had a choice between using a biodegradable and a nonbiodergrable to clean your clothes which would you choose
name the two methods of primary sewage treatment
name the ions commonly present in hard water. what kinds of problems do they cause
what are disinfection by-[products and how are these potentially harmful
which method of purification of drinking water for the home would most likely get rid of disolved organic compunds
Explanation / Answer
A) the excessive utiliazation of ground water due to increase in population, improper utilization of rain water, boring used in every home, digging of grounfd water for irrigation purposes causes the aquifiers go down.
B) The criteria for drinking water to be clean is:
Total Coliforms Organism MPN/100ml shall be 5000 or less pH between 6 to 9 Dissolved Oxygen 4mg/l or more
Biochemical Oxygen Demand 5 days 20
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