What is a septic tank? Where is it used?
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☛ A septic tank is an underwater sedimentation tank used for wastewater treatment through the process of biological decomposition and drainage.
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Answer:
The septic tank is the most common small-scale decentralised treatment unit for grey water and Blackwater from cistern or pour-flush toilets. It is basically a sedimentation tank. its shape can be rectangular or cylindrical.
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