荷正电纳滤膜在褐藻酸钠生产废水中的应用  

Application of positively charged nanofiltration membrane in waste-water drained from the production of sodium alginate

作　　者：黄瑞华[1,2] 陈国华[2] 朱红芳[2] 高从堦[2] 

机构地区：[1]西北农林科技大学理学院,陕西咸阳712100 [2]中国海洋大学化学化工学院,山东青岛266003

出　　处：《功能材料》2010年第12期2190-2193,共4页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2003CB615706)

摘　　要：以废水回用为目的,采用自制的荷正电复合纳滤膜处理褐藻酸钠生产废水,对影响纳滤过程的因素,如操作压力、料液流速、膜的清洗进行了分析。并考察了该纳滤膜对废水中的总溶解性固体、盐度、硬度、CODCr的去除效果。结果表明,废水经纳滤处理后,出水的CODCr为21.4mg/L,去除率为93.0%;对硬度的去除率为88.3%,能很好实现废水的软化和有机物的去除,出水可回用于生产工艺。Based on wastewater recycling,a positively charged composite nanoflitration membrane prepared by ourselves is applied in the treatment of waste-water drained from the production of sodium alginate.These factors affecting nanofiltration process including operating pressure,cross-flow rate and the cleaning membrane are investigated.And the removal of total solubility solid,salinity and CODCr,etc through this membrane are determined.The results suggest that the after waste water is treated through nanofiltration,the concentration of CODCr in the effluent is 21.4mg/L,and the removals of CODCr and rigidity reach 93.0% and 88.3%,respectively,which realizes the desalination of waste-water and the removal of organic substances,the effluent may be reused for process technology.

关 键 词：荷正电纳滤膜 褐藻酸钠生产废水 废水回用 

分 类 号：TQ028.8[化学工程]