REVOLVER TYPE PRETREATING APPARATUS FOR MEMBRANE FILTRATION

摘要

The present invention relates to a revolver type pretreatment apparatus for membrane filtration that is capable of significantly improving the efficiency of a membrane filtration process by effectively removing dissolved materials and the likes as well as solids (supernatant materials, organic materials, microorganisms, and the likes) which are dispersed in raw water before the membrane filtration process is underway by a separation membrane module. The revolver type pretreatment apparatus for membrane filtration according to the present invention includes a filter unit that is disposed upstream the separation membrane module where the membrane filtration process is underway so as to pre-treat and filter the solids and the dissolved materials in the raw water. A raw water line and a water discharge line are connected in parallel in the filter unit, wherein the raw water line is connected to extend from a raw water tank to the separation membrane module side and the water discharge line is connected to extend from the separation membrane module to a water discharge tank side. The filter unit has a housing that is rotatably disposed in a revolver type in the middle of the raw water line and the water discharge line; first and second accommodating portions that are provided to face each other in the housing and are replaceably connected to the raw water line and the water discharge line by the rotation of the housing; and first and second filter members that are individually disposed in the first and second accommodating portions.