高硬度高硫酸盐地下水深度处理试验研究  

Study on the Advanced Treatment of Groundwater with High Concentration of Hardness and Sulfate

作　　者：李静[1] 吴松[1] 王丽[1] 张杰[1] 程小龙[1] 杨力[2,3] 马雪姣[2] 

机构地区：[1]重庆水利电力职业技术学院,重庆永川402160 [2]西南大学资源与环境学院,重庆400716 [3]重庆市永川区环保局环境监测站,重庆永川402160

出　　处：《重庆师范大学学报（自然科学版）》2014年第6期153-158,共6页Journal of Chongqing Normal University:Natural Science

基　　金：重庆市北碚区科委科技计划重点项目(No.2011-24/2011);重庆水利电力职业技术学院院级科研重大项目(No.K201209/2012)

摘　　要：针对中国西南地区岩溶地下水资源非常丰富、开发利用程度低且水资源供需矛盾又日益突出的现状,采用药剂预处理与膜技术相结合的方法探索了岩溶地下水资源化利用途径。结果表明,Na2CO3和Ca(OH)2预处理+纳滤深度处理是处理高硬度高硫酸盐地下水行之有效的方法,在Na2CO3、Ca(OH)2投加量分别为780、125 mg·L-1且操作压力为0.8MPa时,出水硬度、硫酸盐含量、溶解性总固体含量分别为40、36、193 mg·L-1,p H值为7.45,产水率为70.59%。处理后的地下水水质达到《饮用净水水质标准》(CJ 94-2005)要求,且能够满足生产实际需要。Aiming at the current situation of the abundant groundwater resources locating in mountain suburb of southwest area of China with lower rate of exploitation and use, and increasingly conspicuous conflict of water resources supply and demand, the ex- perimental research on resource utilization of groundwater by the advanced treatment with chemical substances pretreatment add membrane technique was carried out. The result shows that the advanced treatment method by pretreatment of lime and soda ash add nanofiltration membrane was an effective way to deal with the groundwater with high concentration of hardness and sulfate. The optimum effects were Na2CO3 780 mg · L^-1 , Ca（OH）2 125 mg · L ^-1, and operating pressure 0.8 MPa with effluent hardness 40 mg· L^-1, sulfate 36 mg· L^- 1, total dissolved solids 193 mg · L ^-1, pH 7.45, and water production rate 70.59%, respectively, which can meet the requirements of the Water Quality Standard for Fine Drinking Water（CJ 94-2005）, and can well satisfy the need of producing.

关 键 词：高硬度 高硫酸盐 岩溶地下水 反渗透 纳滤 

分 类 号：X52[环境科学与工程—环境工程]