高回收率循环水排污水回用处理工艺研究  

High Recovery Rate of Recycling Treatment Technology Research of Circulating Waste Water

作　　者：李亚娟[1] 陈景硕 余耀宏[1] 降晓艳[1] 黄倩[1] 

机构地区：[1]西安热工研究院有限公司,西安710032 [2]华能国际电力股份有限公司,北京100031

出　　处：《工业安全与环保》2016年第9期15-18,共4页Industrial Safety and Environmental Protection

基　　金：华能国际电力股份有限公司科技项目(TL-15-HNK01)

摘　　要：采用城市中水作为火电厂循环水系统水源,在循环水高浓缩倍率运行条件下,循环水排污水具有含盐量高、硬度高、有机物浓度高的特点,回用处理难度大。通过试验模拟研究,提出了采用"Na OHNa_2CO_3联合软化+超滤+反渗透"处理工艺,该系统运行稳定,淡水回收率可达到85%,淡水可作为循环水系统补水或者锅炉补给水系统水源。The municipal reclaimed water is used as circulating water in the fossil power plant,circulating waste water is high dissolved solid,high hardness and high organic matter when water- recirculating system operates with the higher concentration ratio and the circulating waste water treatment is difficult. Through experimental simulation,the process of＂Na OH- Na_2CO_3 mixed softening- UF- RO＂is proposed to treat circulating waste water. The fresh water recovery rate can reach 85% and it can be used as the make- up water for circulating water or for chemical desalting water system.

关 键 词：城市中水 循环排污水 联合软化 高回收率 反渗透 

分 类 号：X703[环境科学与工程—环境工程]