Question

Treatment of industrial effluents can be done in three phases. Explain.(class 10)​

Answer 1

Explanation:

The three phases are: (i) Primary treatment by mechanical machines. This involves screening, grinding,flocculation and sedimentation. (iii) Tertiary treatment by biological, chemical and physical processes.

Answer 2

Answer:

$‎\huge\fcolorbox{cyan}{red}{\color{cyan}{♡Answer♡}}$

Primary treatment by mechanical means. This envolves screening, grinding, flocculation and sedimentation.

Secondary treatment by biological process.

Tertiary treatment by biological process, chemical process and physical process.