化工环保2017，Vol.37Issue(2)：200-206,7.DOI:10.3969/j.issn.1006-1878.2017.02.013
Fenton流化床陶瓷膜反应器处理造纸废水的膜污染与清洗
Membrane fouling and cleaning regeneration of Fenton fluidized bed-ceramic membrane reactor for treatment of papermaking wastewater
范东 1丁丽丽 1耿金菊 1许柯 1张宴 1任洪强1
作者信息
- 1. 南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京2210023
- 折叠
摘要
Abstract
The secondary effluent of papermaking wastewater was treated in a Fenton fluidized bed-ceramic membrane reactor.The mechanism of membrane fouling was researched and the cleaning regeneration scheme was put forward.The removal rate of dissolved organic carbon and chroma of the treated wastewater was 84.2％ and 94.1％ respectively.The calculation results according to the Darcy's low-based model showed that the filtration resistance of cake layer was the main resistance,which was about 62.1％ of the total resistance;Suspended solids,as the main pollutant in the cake layer,accounted for 75.4％ of the total solids in the cake layer;Hydrophobic organics were the main dissolving organic pollutants in cake layer,and hydrophilic organics caused more pore blockages;Humic acids had more effects on cake layer forming and pore blockage,and proteins caused pore blockage more often than polysaccharides.The cleaning effect of fouled membrane by HNO3 was the best,and the membrane flux recovery rate was 73.6％ when HNO3 mass fraction was 1.00％ and reaction time was 15 min.关键词
芬顿反应/流化床/陶瓷膜反应器/造纸废水/膜污染/清洗再生Key words
Fenton reaction/fluidized bed/ceramic membrane reactor/papermaking wastewater/membrane fouling/cleaning regeneration分类
资源环境引用本文复制引用
范东,丁丽丽,耿金菊,许柯,张宴,任洪强..Fenton流化床陶瓷膜反应器处理造纸废水的膜污染与清洗[J].化工环保,2017,37(2):200-206,7.
