Secondary sewage treatment is mainly a

Secondary Sewage Treatment Is Mainly A Biology Question

Secondary sewage treatment is mainly a


(a) physical process
(b) mechanical process
(c) chemical process
(d) biological process

Correct Answer:

biological process


In secondary treatment mainly settled sewage flows to an aerobic biological treatment stage where it comes into contact with micro-organisms which remove and oxidise most of the remaining organic pollutants.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Conservation and Environmental Issues (111)
Subject: Biology (4253)

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