超滤技术在废水处理中的应用解析（Application of ultrafiltration technology in wastewater treatment）.docVIP

超滤技术在废水处理中的应用解析（Application of ultrafiltration technology in wastewater treatment） With the development of social economy and the improvement of peoples living standard, peoples demand for environmental quality is more and more high, so the traditional wastewater treatment technology is difficult to meet the increasingly stringent sewage discharge standards, and the traditional wastewater treatment the majority of people only negative economic benefits, this undoubtedly makes many enterprises can not afford the cost of wastewater treatment additional, in addition to economic development has also brought the shortage of water resources, the objective requirements of wastewater recycling. With the social and economic benefits maximization, a variety of new, improved and efficient wastewater treatment technologies came into being. Ultrafiltration technology is one of the attractive technologies. The application and development of ultrafiltration technology in wastewater treatment are reviewed in this paper. As early as 1861, Schmidt put forward the concept of ultrafiltration for the first time in the field of filtration. In the twentieth Century 70~80, the rapid development of ultrafiltration technology, the application of more and more widely, the use of more and more. 1 the basic principle and influencing factors of ultrafiltration technology for wastewater treatment 1.1 basic principles of ultrafiltration Ultrafiltration (ultrafiltration, referred to as UF) is a solution under pressure, the other side of the solvent and low molecular weight solutes across the membrane pores to membrane, while the polymer solute or other emulsified micellar clusters trapped, separated from the solution to. Its separation mechanism mainly depends on physical sieving. When ultrafiltration was applied to a certain pressure of liquid, polymer and colloid materials for an adsorption film surface and pores, in the hole is blocked and interception and membrane mechanical sieving effect in t