What is the movement of solids in water called?

What is the recommended surface loading rate in case of alum floc suspension?

While designing a rectangular primary sedimentation tank in what range the length should be assumed?

How many types of settling are present?

________ is provided after activated sludge process.

How is the critical concentration of sludge thickener tank calculated?

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

What is type IV settling also called as?