the separation of solid waste from domestic sewage is known as _______
a) slurry
b) sludge
c) humus
d) manure
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Answer:
sludge is the correct answer
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Step-by-step explanation:
Gravity separation of solids is the primary treatment of sewage, where the unit process is called "primary settling tanks" or "primary sedimentation tanks." It is also widely used for the treatment of other types of wastewater.
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