化工进展2016，Vol.35Issue(9)：2967-2972,6.DOI:10.16085/j.issn.1000-6613.2016.09.045
投加粉末活性炭对超滤膜去除海水中有机物的影响
Influence of powdered activated carbon addition on organic matter removal from seawater using ultrafiltration membrane
摘要
Abstract
Ultrafiltration(UF)membrane fouling by organic matter remains a significant challenge in the application of low pressure membrane filtration in the seawater desalination project. Powdered activated carbon(PAC)adsorption is one of the most common pretreatment technologies for seawater ultrafiltration process. In this paper,removal of organic matter from seawater using UF and PAC-UF processes were compared. The influence of PAC addition on organic matter removal was investigated using excitation-emission matrix(EEM) spectroscopy. Flux decline and membrane fouling in seawater ultrafiltration processes with and without PAC addition were also discussed. The experimental results indicated that PAC addition increased turbidity and organic matter removal from seawater. DOC removal by UF increased from 55.1% without PAC to 77.6% when 200mg/L PAC was added. The higher humic acid(HA)substances removal rate by PAC-UF processes can be attribute to PAC adsorption and cake formation on the membrane surface. It was not significantly to decrease the flux decline rate after PAC adding in comparison to ultrafiltration without PAC addition. However,the cake formation on the membrane surface can avoid organic matter contacting directly with the membrane, which is helpful to mitigate irreversible membrane fouling.关键词
超滤/吸附/粉末活性炭/有机物/海水Key words
ultrafiltration/adsorption/powdered activated carbon/organic matter/seawater分类
资源环境引用本文复制引用
王文华,赵瑾,姜天翔,王静,张雨山..投加粉末活性炭对超滤膜去除海水中有机物的影响[J].化工进展,2016,35(9):2967-2972,6.基金项目
中央级公益性科研院所基本科研业务费专项资金项目（K-JBYWF-2015-T10）及海洋公益性行业科研专项项目（201405035）。 （）
