Microflocculation is brought about by which phenomenon?

What is the movement of solids in water called?

At what pH is phosphate precipitated out?

What is the ratio of Polymer/Phosphate while adding polymer to a waste water in order to remove the phosphates present?

What is the time period for which the water is stored in fill and draw type of sedimentation tank?

What is the maximum permissible velocity in horizontal flow type sedimentation tank?

What is the accumulated layer at the bottom of the tank called as?

What is the chemical formula of aluminium sulphate?