WEI Yong,WU Hong.A Pilot Study on Membrane Fouling in the Treatment of Taihu Lake Water by Nanofiltration[J].China Water & Wastewater,2021,37(7 7):66-70.
A Pilot Study on Membrane Fouling in the Treatment of Taihu Lake Water by Nanofiltration
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
7 7
Page:
66-70
Column:
Date of publication:
2021-04-01
- Keywords:
- nanofiltration; Taihu Lake water; membrane fouling; humic acid; biopolymers
- Abstract:
- A pilot scale test with Taihu Lake water as raw water was carried out in order to investigate membrane fouling in the treatment of drinking water by nanofiltration. After ultrafiltration pretreatment, the raw water was filtered by nanofiltration. When operating flux exceeded 22 L/(m2·h), the nanofiltration membrane fouled rapidly. The membrane pollutants were analyzed by EEM, SEM, ICP and LC-OCD. Inorganic substances that led to nanofiltration membrane fouling were compounds composed of Al, Si and Fe, and organic pollutants were mainly biopolymers, polycarboxylic humic acids and small molecular weight neutral organic compounds that did not absorb UV.
Last Update:
2021-04-01