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Application of membrane separation technology in zero discharge treatment of desulphurization wastewater
Authors: Wang Huai Lin, Yun Jinming , Wu Huan, Liu Jie, Xu Zongliu
Units: Jiangsu Kaimi Membrane Technology Co.,Ltd,Nanjing 210049,China
KeyWords: organic tube membrane; ultrafiltration;reverse osmosis
ClassificationCode:X703
year,volume(issue):pagination: 2018,38(6):105-110

Abstract:
 The wastewater in desulfurization of a power plant was pretreated by "chemical dehardening + external organic tube ultrafiltration membrane + OCRO pipe network reverse osmosis".The water production can be used for boiler reuse. Rewerse osmosis water is as follows:The average concentrations of COD,conductivity,TDS, and Silicon were 50mg/L,900μS/cm,367 mg/L,225 mg/L,1 mg/L, respectively. The results show that most of ions and salts can be removed. Which can solve The problem of scaling and blockage effectively. During the system operation, the membrane flux was stable. The average concentrations of Silicon, Cl-, and COD were analyzed, which were 18mg/L、34g/L、420mg/L respectively, satisfying MVR evaporation. The removal rates of conductivity, TDS, COD, and Cl-of this combination process were 96.5%、97.3%、95.3%、98.06%, respectively. meeting the requirements of “The reuse of urban recycling water--Waterquality standard for industrial” (GB/T 18920-2002).

Funds:
江苏省科技成果转化专项资金(BA2016066)

AuthorIntro:
第一作者简介:王怀林(1964-),男,江苏扬州人,硕士,高级工程师,从事分离膜产品的开发以及水处理技术的研究。E-mail:kaimitech@163.com

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