What is the retention time for lamella clarifiers?

__________ maintain the required water quality to the membrane without the use of chemicals.

____ is called ‘zero speed’.

During the disposal of the sludge, it must be __

The design of oil/water separators is based on _____

An emulsion is a _____ system.

What is the maximum rise rate in m3/m2/h considered while designing a Lamella clarifier?

What is the common effluent pipe from each house to a collection point called?