AL Sewer Projects Practice Questions - Alabama Sewer Projects Contractor Examination Exam

What is the primary function of a septic tank in an onsite sewage disposal system?

To disinfect effluent to drinking-water standards To settle solids, retain scum, and provide anaerobic digestion of settled solids To spray effluent into the air for cooling To replace the need for any soil absorption field

Correct Answer:

To settle solids, retain scum, and provide anaerobic digestion of settled solids

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