Aerobic bacteria a) Flourish in the presence of free oxygen b) Consume organic a
ID: 1710367 • Letter: A
Question
Aerobic bacteria a) Flourish in the presence of free oxygen b) Consume organic as their food c) Oxidize organic matter is sewage d) All the above Bar screens and grit chambers are used (a) Only primary wastewater treatment plants (b) in most municipal wastewater treatment plants (c) Very rarely due applications of technology (d) Only in advanced wastewater treatment plants (e) In most municipal water supply facilities Mixed liquor is a term used to describe the (a) Contents of a sludge digestion tank (b) Contents of a activated sludge aeration tank (c) Film of microorganisms growing on a trickling filter (d) Drink a treatment plant operator has with his or her lunch (e) Contents of a sludge thickening tank Chlorination of water is done for the removal of a) Bacteria b) Sediments c) Suspended solids d) Hardness e) All the above Compared to surface water, ground water usually contains (a) a higher mineral content (b) more microorganisms (c) less dissolved minerals (d) less fluorides (e) less hydrogen sulfide, carbon dioxide, and methaneExplanation / Answer
2) d
3)e
4)b
5)a
6)c
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