Among the following treatment process 90% of BOD of effluent can be reduced by

The fatigue resistance of cord fabric materials is high for

The pore radius of a filter by bubble point cannot be calculated using the parameter

The frictional resistance of a geo textile can be tested by

The formation of three dimensional pile on the surface of a non-woven backing is

In the following non-woven production process, very high voltage (kV) is applied for production of fibres in