Application Research of Microfiltration Membrane Pilot Test in Water Treatment

Lake water is used as the raw water. The water carries the following characteristics: high organic content in individual sessions, high-algae and odor in summer. At present, the conventional treatment process is unable to cope with. The application of microfiltration system in the pilot test is studied. Filter effluent and air flotation effluent are used as the microfiltration influent. Membrane flux are 80L/m 2 /h, 90L/m 2 /h, 100L/m 2 /h.Water quality is stable. The average turbidity is 0.1NTU. Total coliform and total bacteria in effluent are not detected. The recovery of water is greater than 96.1%.Potassium permanganate preoxidation + powder carbon dosing + conventional treatment + microfiltration membrane system can effectively solve organics, high algae and odor problems. It also can improve the coping capacity to respond mutation of the water quality.