Ultrafiltration Enhanced with Activated Carbon Adsorption for Efficient Dye Removal from Aqueous Solution

In this study, orange G dye was efficiently removed from aqueous solution by ultraflltration （UF） membrane separation enhanced with activated carbon adsorption. The powdered activated carbon （PAC） was deposited onto the UF membrane surface, forming an intact filter cake. The enhanced UF process simu...

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Published inChinese journal of chemical engineering Vol. 19; no. 5; pp. 863 - 869
Main Author 董亚楠 苏延磊 陈文娟 彭金明 张岩 姜忠义
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2011
Subjects
adsorption
dye removal
enhanced ultrafiltration
filter cake
PAC
powdered activated carbon
染料分子
水溶液
活性炭吸附
渗透通量
粉末活性炭
膜分离技术
超滤
dye removal
adsorption
filter cake
powdered activated carbon
enhanced ultrafiltration
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ISSN1004-9541
2210-321X
DOI10.1016/S1004-9541(11)60066-9

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Summary:In this study, orange G dye was efficiently removed from aqueous solution by ultraflltration （UF） membrane separation enhanced with activated carbon adsorption. The powdered activated carbon （PAC） was deposited onto the UF membrane surface, forming an intact filter cake. The enhanced UF process simultaneously exploited the high water permeation flux of porous membrane and the high adsorption ability of PAC toward dye molecules. The influencing factors on the dye removal were investigated. The results indicated that with sufficient PAC incorporation, the formation of intact PAC filtration cake led to nearly complete rejection for dye solution under opti-mized dye concentration and operation pressure, without large sacnticlng the permeation tlux ot the filtration process. Typically, the dye rejection ratio increased from 43.6% for single UF without adsorption to nearly 100% for the enhanced UF process, achieving long time continuous treatment with water permeation flux of 47 L·m^-2·h^-1. The present study demonstrated that adsorption enhanced UF may be a feasible method for the dye wastewater treatment.
Bibliography:In this study, orange G dye was efficiently removed from aqueous solution by ultraflltration （UF） membrane separation enhanced with activated carbon adsorption. The powdered activated carbon （PAC） was deposited onto the UF membrane surface, forming an intact filter cake. The enhanced UF process simultaneously exploited the high water permeation flux of porous membrane and the high adsorption ability of PAC toward dye molecules. The influencing factors on the dye removal were investigated. The results indicated that with sufficient PAC incorporation, the formation of intact PAC filtration cake led to nearly complete rejection for dye solution under opti-mized dye concentration and operation pressure, without large sacnticlng the permeation tlux ot the filtration process. Typically, the dye rejection ratio increased from 43.6% for single UF without adsorption to nearly 100% for the enhanced UF process, achieving long time continuous treatment with water permeation flux of 47 L·m^-2·h^-1. The present study demonstrated that adsorption enhanced UF may be a feasible method for the dye wastewater treatment.
DONG Yanan,SU Yanlei,CHEN Wenjuan,PENG Jinming,ZHANG Yan,JIANG Zhongyi（Key Laboratory for Green Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China）
11-3270/TQ
enhanced ultrafiltration, powdered activated carbon, filter cake, adsorption,-dye removal
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SourceType-Scholarly Journals-1
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ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(11)60066-9