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Yoshi Yoshi
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9 years ago
Secondary sewage treatment is distinguished form primary sewage treatment by the:
A) addition of bacteria to process organic contaminants.
B) aeration of liquid effluent following chlorination.
C) chlorination of the liquid effluent.
D) removal of inorganic nutrients from the liquid effluent.
E) separation of the suspended solids from the liquid effluent.
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GeoExpGeoExp
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9 years ago
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Yoshi Author
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#2
9 years ago
Muchas gracias!

Appreciate your help tremendously Smiling Face with Open Mouth
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#3
9 years ago
Smiling Face with Open Mouth Great!
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