arrange the following in the correct order of sequence of steps that are followed for treatment of sewage 1 adding of alum 2 chlorination 3 passed into a tank with a gentle slope 4 havvier particles settle down 5 churning the sewage by machine
Answers
Answered by
1
Explanation:
Answer: a
Explanation: Most of the turbidity is removed by clarification, making the water crystal clear. Disinfection is usually the final step in the treatment of drinking water which destroys pathogenic microbes.
Similar questions