There are various factors that can affect the performance of the Ultra Filtration Plant in Delhi. It helps to floe around the Membrane Surface. The permeate rate enhances with the flow velocity of the liquid around the membrane surface. The flow velocity is specifically critical for liquids containing emulsions or suspensions. The higher flow also meant higher energy consumption and large pumps. The increasing flow velocity also lessens the fouling of the membrane surface. Commonly, the optimum flow velocity is arrived at by a compromise between the pump horsepower and enhance in permeate rate.