基于水质稳定性分析的反渗透浓水回用预处理工艺的优化  

Optimization of RO Concentrate Treatment Based on Water Quality Stability Analysis

作　　者：戴世峰 韩军 郭家明 赵晓丹 顾锦绣 吴德礼[3] 周振 DAI Shifeng;HAN Jun;GUO Jiaming;ZHAO Xiaodan;GU Jinxiu;WU Deli;ZHOU Zhen(Wujing Thermal Power Plant,Shanghai Electric Power Co.,Ltd.,Shanghai 200241,China;Shanghai University of Electric Power,Shanghai 201306,China;Tongji University,Shanghai 200092,China)

机构地区：[1]上海电力股份有限公司吴泾热电厂,上海200241 [2]上海电力大学,上海201306 [3]同济大学,上海200092

出　　处：《上海电力大学学报》2021年第4期355-360,366,共7页Journal of Shanghai University of Electric Power

基　　金：国家自然科学基金(51878403)。

摘　　要：通过3种水质稳定模型对某热电厂反渗透浓水进行水质稳定性分析,对其结垢趋势进行了判断。以浓水回用为目的,提出了以水质稳定性分析为依据的软化处理方案,并依托电导率的检测与评价技术设计了阻垢剂投加量的优化实验。结果表明:雷兹纳稳定指数(RSI)和帕科拉兹指数(PSI)对反渗透浓水软化条件的优化具有一定的指导意义,控制反渗透浓水的pH值为9.0~9.5,或投加阻垢剂2.5μg/L后反渗透浓水进入回收单元时无结垢倾向。Based on three water quality stability models,the scaling of reverse osmosis concentrate in a thermal power plant is investigated.In order to reuse the concentrate,a softening treatment based on the analysis of water stability is proposed,and the optimization experiment of scale inhibitor dosage is designed based on the evaluation technology of conductivity.The results show that Ryznar Stability Index and Puckorius Scaling Index has certain guiding significance for the condition of the softening pre-treatment.When the pH of RO concentrated water is 9.0~9.5 or scale inhibitor concentration is 2.5μg/L,there is no scaling tendency when RO concentrated water enters the recovery unit.

关 键 词：水质稳定性 反渗透 浓水回用预处理 软化工艺优化 阻垢 

分 类 号：TM301[电气工程—电机]