膜分离技术处理淀粉污水试验研究.pdfVIP

第 24 卷第 5 期 水 资 源 保 护 Vol . 24 No . 5 2008 年 9 月 WATER RESOURCES PROTECTION Sep . 2008 膜分离技术处理淀粉污水试验研究 周晶晶 ,金 　鹰 (河海大学海洋学院 ,江苏 南京 　210098) 摘要 :针对传统污水处理方法中蛋白质去除率较低而 COD 负荷增加问题 ,采用膜处理装置进行试验研究 。 在膜分离技术的基础上 , 以调节豆浆废水 、淀粉废水等电位点作为预处理 ,采用中空纤维膜装置进行超过滤 , 并对温度影响作定性分析 。结果表 明 ,膜分离技术可 以大大提高这两种废水 中 COD 的去除率 , 分别为 763 %和 829 % ;去除率与膜组件的孔径有密切关系 ;另外 ,适当的温度可以提高污水处理的效率 ,试验得出 20 ℃时效率最佳 ;淀粉等废水处理后的蛋白质还可以作为肥料被充分利用 。 关键词 :膜分离技术 ; 中空纤维膜 ;超滤 ( ) 中图分类号 :X703 　　　文献标识码 :A 　　　文章编号 :1004 6933 2008 Experiments on faecula waste water treatment with membrane separation technology ZHOU Jingjing , JIN Ying ( College of Ocean , Hohai University , N anj ing 2 10098 , China) Abstract : In view of the low protein removal rate and negative COD removal rate in traditional sewage treatment processes , membrane technology was introduced in experiments for the treatment of wastewater containing protein . Soybean milk and faecula wastewater were pretreated by regulating their equipotential points , and ultrafiltrated with hollow fiber membrane equipment . The influence of temperature is analyzed qualitatively . The membrane separation technology greatly improved the COD removal rates , which were 763 % and 829 % , respectively , for Soybean milk and faecula wastewater , and the removal rates were significantly affected by the aperture of the membrane . Proper temperature was important for treatment efficiency and 20 ℃was the best one . Protein from faecula wastewater treatment can be utilized as fertilizer . Key words :membrane separation technology ; hollow fiber membrane ; ultrafiltration 比较成熟并已被广泛应用在多个工业领域的膜分离 1 　概 　述 技术 ,诸如海水淡化 、烧碱