Application of Membrane Separation Technology in Water Treatment[ Abstract ] Using membrane separation technology, the industrial wastewater, seawater and brackish water that could not be used originally can be recovered and regenerated, which greatly alleviates the current situation of water shortage. In this paper, the principle and characteristics of membrane separation technology are systematically introduced. According to the advantages and problems in the development of membrane separation technology, the specific application of membrane separation technology in water treatment is discussed in detail.[ Key words ] membrane separation technology; water treatment; Application Research