膜科学与技术

硅藻土错流动态膜工艺处理淮河原水的运行特性研究

作者：
许光红¹，孙雯¹，余振勋¹，董秉直²，曹达文³

单位： 1.同济大学环境科学与工程学院，上海 200092；2.同济大学长江水环境教育部重点实验室，上海 200092；3.同济大学城市污染控制国家工程研究中心，上海 200092

关键词：硅藻土；动态膜；错流；聚合氯化铝附加剂

出版年,卷(期):页码： 2012,32(4):92-97

摘要：

采用硅藻土错流动态膜过程直接处理淮河原水，考察商品硅藻土在不同投加量、不同附加剂配合条件下动态膜的成膜效果、出水浊度和膜通量变化。研究结果表明，采用商品硅藻土和聚合氯化铝附加剂动态膜成膜较好；继续在动态膜过滤过程中不断加入0.25mg/L聚合氯化铝，出水浊度可以稳定在0.25 NTU或以下。错流可以适当延缓硅藻土动态膜通量衰减。

This paper discusses the cross-flow diatomaceous earth pre-coated dynamic membrane process in treating the Huaihe raw water directly. It attempts to evaluate the quality of dynamic membrane formation by testing the turbidity of the filtrate and the variation of flux under the condition of different dosing quantities of diatomite and different kinds of additive. The results show that the use of diatomite, combined with PAC as additive to the pre-coat, produces a high-quality of dynamic membrane. Continued addition of 0.25mg/L PAC during the whole process can reduce the filtrate turbidity to 0.25NTU; additionally, a low membrane flux drop is maintained.

许光红（1987～），女，四川省资阳市人，硕士研究生，主要研究方向为水处理理论与技术，联系电话:18801769013，E-mail: xu063268@126.com *通讯联系人，E-mail: dbz77@tongji.edu.cn

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