串联式正渗透工艺同步处理高盐废水和市政污水的研究  

Study on synchronous treatment of high-salinity wastewater and municipal sewage by tandem forward osmosis proces

作　　者：郭文萱 张壹超 杨鹏飞 朱芳琳 刘志强[1] GUO Wenxuan;ZHANG Yichao;YANG Pengfei;ZHU Fanglin;LIU Zhiqiang(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266525

出　　处：《青岛理工大学学报》2023年第2期126-132,共7页Journal of Qingdao University of Technology

基　　金：国家环境标准制修订项目(A2018-033)。

摘　　要：为实现高盐废水的低能耗处理和市政污水的资源利用,构建了“市政污水—高盐废水—海水”的串联式正渗透污水同步浓缩工艺,考察了2种废水的处理效果。结果表明:使用FO模式在1 L/min的错流速度下浓缩污废水,当市政污水浓缩到原体积的1/10时,COD的浓缩效果最好,是原浓度的6.68倍,COD和TP的截留率均在97%以上;当被稀释的高盐废水浓缩到原体积的1/3左右时,COD,K+和Na+都浓缩到了原浓度的2倍左右且截留率均在90%以上。In order to realize the low energy consumption treatment of high-salinity wastewater and improve the utilization of municipal sewage as a resource,a series forward osmosis wastewater synchronous concentration process of“municipal sewage-high-salinity wastewater-seawater”was proposed in this study,and the treatment effects of the two kinds of wastewater were investigated.The results show that when FO mode is used to concentrate sewage and wastewater at the cross flow speed of 1 L/min and the municipal sewage is concentrated to 1/10 of the original volume,the concentration effect of COD is the best,which is 6.68 times of the original concentration,and the rejection rates of COD and TP are above 97%;when the diluted high-salinity wastewater is concentrated to about 1/3 of the original volume,COD,K+and Na+are concentrated to about twice of the original concentration and the retention rate is above 90%.

关 键 词：正渗透 高盐废水 市政污水 水通量 截留率 

分 类 号：X703[环境科学与工程—环境工程] TQ028.8[化学工程]