Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

Study of the following statements and select the incorrect ones.

  1. Physical removal of large and small particles through filtration and sedimentation is called primary sewage treatment
  2. Secondary sewage treatment is mainly a mechanical process
  3. Activated sludge sediment in a sewage treatment plant is a rich source of aerobic bacteria
  4. Biogas, commonly called as gobar gas, is pure methane
Option: 1

(i) and (ii)

 


Option: 2

(ii) and (iv)

 


Option: 3

(ii) and (iii)

 


Option: 4

(iii) and (iv)


Answers (1)

best_answer

 

Microbes in sewage treatment -

Treatment of waste water is done by the heterotrophic microbes naturally present in the sewage. This treatment is carried out in two stages:

- wherein

1. Primary treatment

2. Secondary treatment or Biological treatment

 

 

 

Posted by

mansi

View full answer

Similar Questions

Latest Question