Mention three ways that can be used for sewage disposal if a proper sewage treatment plant is not available . Ans this in long plz
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Followings are the three ways that can be used for sewage disposal if a proper sewage the treatment plant is not available:
(i) Making septic tanks or septic tank toilets: It is suitable for places that have no sewerage system.
(ii) Making a vermi-processing toilet: Here, the sewage is treated by earthworms in a pit. The earthworms gradually eat all the organic matter and decompose it.
(iii) Use of human excreta in biogas plants: Here, the human excreta from the toilet seats in the homes travel directly to biogas plants through covered drains.
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