question_answer

Differentiate between \[1{}^\circ \] treatment and \[2{}^\circ \]treatment of wastewater.

Answer:

The difference between primary treatment and secondary treatment are as following

	Primary \[(1{}^\circ )\] treatment	Secondary \[(2{}^\circ )\] treatment
1.	Mechanical removal of coarse solid and settleable particulate.	Biological treatment involving microbial activity.
2.	Reduce particles to fragments, remove grit and initiate sedimentation.	Adsorb and oxidize organic control of wastewater.
3.	Products sedimentation, setting in tank, basin and chambers.	Includes filteration, aeration and oxidation in filteration tank and oxidation ponds.