Tertiary sewage treatment is primarily focused on
A) reducing the Biochemical Oxygen Demand (BOD)
B) removing grit and other solid particles
C) disinfection to destroy disease-producing organisms
D) none of these
Correct Answer:
Verified
Q18: Primary sewage treatment is focused on
A)reducing the
Q19: Rapid eutrophication of a lake or stream,
Q20: Salinity (sodium chloride content) of inland natural
Q21: Secondary sewage treatment is focused on
A)disinfection to
Q22: Sediment (soil particles) in natural waters can
A)
Q24: The amount of oxygen required to decompose
Q25: The coastal zones of the earth's oceans
Q26: The rapid decrease of dissolved oxygen in
Q27: The recovery zone of polluted natural waters
Q28: The "river that burned" was the
A)Cuyahoga River
B)Mississippi
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