天津工业大学学报2011，Vol.30Issue(5)：1-4,4.
小型直饮水系统中预处理工艺对纳滤的影响
Influence of pretreatment process on NF in small-scale systems of direct drinking water
摘要
Abstract
The influence of different pretreatment processes (carbon activated filtration and microfiltration (MF)) on performance of nanofiltion (NF) system was compared in direct drinking water treatment. The results show that MF pretreatment process can effectively remove turbidity, but it is not effective to control organic fouling of NF membrane. Compared with MF, the organic fouling of NF membrane can be alleviated by the pretreatment process of activated carbon filtration. But bacteria can grow and accumulate in the carbon bed with continuing operation, and the increase of total bacteria in the carbon filtration effluent will aggravate membrane fouling. By comparison of continuous running between the two kinds of pretreatment processes, NF membrane flux declined to 45.3% of its initial flux after operation for 50 d when MF was used as pretreatment process, and when activated carbon was used, pretreatment NF membrane flux declined to 72.3% of its initial flux. The analysis of pollutants in NF membrane further suggests that when activated carbon filtration is used as NF pretreatment process in small-scale systems of direct drinking water, membrane fouling can be controlled more effectively.关键词
纳滤/膜污染/预处理工艺/直饮水Key words
nanofiltration/ membrane fouling/ pretreatment process/ direct drinking water分类
轻工纺织引用本文复制引用
郑建军,王亮,马术岭,张朝晖..小型直饮水系统中预处理工艺对纳滤的影响[J].天津工业大学学报,2011,30(5):1-4,4.基金项目
国家水体污染控制与治理科技重大专项(2008ZX07314-003) （2008ZX07314-003）
国家科技支撑计划课题(2009BAC60B02) （2009BAC60B02）
国家自然科学基金青年基金项目(51108315) （51108315）
天津市科技支撑计划重点项目(11ZCGYSF01500) （11ZCGYSF01500）
