Characteristics of Membrane Fouling for Coagulation-Microfiltration Process with different Coagulants

摘要：

The characteristics of membrane fouling and humic acid removal efficiency for coagulation-microfiltration process with different coagulants have been studied. Results shows that water pre-coagulated by ferric/aluminum coagulants before microfiltration membranes filtering can reduce the decline of flux. With the same dosage, polymer ferric coagulants have a better effect on the reduction of membrane fouling than monomer ferric coagulant but aluminum coagulants are just the opposite. The humic removal efficiency of the permeate increases with the coagulants dose increasing from 0 to 0.6mmol/L, whereas the flux improves firstly when dosage increases from 0 to the optimum dosage of 0.2 and 0.3 mmol/L, and then decreases at 0.6mmol/L. So the optimum dosage to get the maximum humic acid removal is not the best dosage for membrane fouling alleviation.

作者: PAN Siru WANG Jin YANG Yaqian

作者单位: Department of Municipal and Environmental Engineering, School of Civil Engineering, Beijing Jiaotong Department of Municipal and Environmental Engineering, School of Civil Engineering, Beijing Jiaotong

会议类型: 国际会议

会议名称: 2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)

会议地点: 广东东莞

会议语种:英文

页码: 157-162

在线出版日期: 2011-06-01（万方平台首次上网日期，不代表论文的发表时间）