Question

Mention three ways that can be used for sewage disposal if a proper sewage treatment plant is not available​

Answer 1

The main methods of sewage disposal, which are also the safest and most effective, are the use of cesspools, also known as underground septic tanks, settling tanks and disposal plants.

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Answer 2

Three ways that can be used for sewage disposal if a proper sewage treatment is not available include pit latrines, septic tanks, and on-site systems or vermi-processing toilets.

Explanation:

• Pit latrines is one of the oldest method and used by marginalised communities for flushing the toilets as they do not get enough water supply as compared to the elite classes.

• It is more like a shallow trench latrine for many people in a short period of time and filled with soil when almost full.

• It is suitable for places that have no sewerage system.

• A septic tank is an underground container made of concrete, fiberglass,  through which domestic wastewater flows for basic treatment

• At last, the on-site systems collect liquid waste from kitchens and toilets which is collected in a tank with the help of waste pipes.
• vermi-processing toilet, the sewage is treated by earthworms in a pit. the earthworms slowly digest all the organic matters and decompose it.

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