Engineering Board Exam Reviewer · Environmental Engineering · easy

A septic tank provides:

1. Settling of solids and anaerobic digestion of household sewage
2. Aerobic treatment with mechanical aerators
3. Complete disinfection of wastewater
4. Desalination

Answer

A. Settling of solids and anaerobic digestion of household sewage

Solution

Effluent usually goes to a leaching field or soak-away pit.

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