A chamber made of concrete, fibre glass, PVC or plastic, through which domestic waste water, sewage flows for secondary treatment is called?

drainage tank
septic tank
pit latrine tank
water harvesting tank

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : septic tank

Concept:

A septic tank is an underground chamber made of concrete, fiberglass or plastic through which domestic wastewater (sewage) flows for basic treatment. Action within the septic tank is anaerobic in nature.

The term "septic" refers to the anaerobic bacterial environment that develops in the tank which decomposes the waste discharged into the tank.

Followings are the classification of secondary treatment units

Method	Contact Mechanism	Decomposition
Trickling filter	Attached growth	Aerobic
Rotating biological contactor	Attached growth	Aerobic
Activated sludge process	Suspended growth	Aerobic
Oxidation pond	Suspended growth	Aerobic
Septic tank	Suspended growth	Anaerobic
Imhoff tank	Suspended growth	Anaerobic

4 views Answered 2022-09-04 04:29

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