超低压反渗透膜浓缩处理矿山酸性废水  

STUDY ON THE CONCENTRATED TREATMENT OF THE ACID MINE DRAINAGE BY ULTRA-LOW REVERSE OSMOSIS MEMBRANE

作　　者：钟常明[1] 方夕辉[1] 许振良[2] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]华东理工大学化学工程研究所膜科学与工程研发中心,上海200237

出　　处：《水处理技术》2008年第5期70-73,共4页Technology of Water Treatment

基　　金：国家重点基础研究发展计划(973)项目(2003CB615705);国家经贸委技术创新计划项目(01BK-221)

摘　　要：从反渗透膜RE4040-BL和RE4040-BE的对比试验结果可知,选择超低压反渗透膜较为经济和合理。浓缩试验在压力为1.0MPa、温度为25℃下进行,原料液为100L,结果表明:随着浓缩时间的增加,膜渗透液和浓缩液的离子浓度和截留率逐渐增加,而膜通量却逐渐减小;矿山酸性废水中Ni2+、Cu2+、Zn2+和Pb2+的离子浓度可分别浓缩至120.5、617、149.3mg/L和93.1mg/L,浓缩倍数分别为7.26、7.83、8.16和9.35。进一步浓缩后重金属离子可以回收利用。The concentrating second treated acid mine drainage （AMD） were conducted with a commercial ultra-low pressure reverse osmosis membrane （RE4040-BL） on the condition ofAP=1.0MPa, T=25℃ and the feed liquid is 100L. The results showed that the ions concentration of membrane permeate liquid and concentrated liquid and the membrane rejection rate increased along with the concentrated time increasing, but the membrane flux decreased. The concentration of Ni^2＋, Cu^2＋, Zn^2＋ and Pb^2＋ in the concentrated liquid for RE4040-BL was up to an value 120.5,617, 149.3 and 93.1mg/L, respectively, and the concentrated multiple was 7.26, 7.83, 8.16 and 9.35, respectively. The ultra-low pressure reverse osmosis membrane is better than the brackish water reverse osmosis membrane.

关 键 词：超低压反渗透膜(ULPRO) 重金属离子 矿山酸性废水(AMD) 浓缩 

分 类 号：TQ028.8[化学工程]