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 in | Chinese journal of chemical engineering Vol. 19; no. 5; pp. 863 - 869 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.10.2011
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-9541 2210-321X |
| DOI | 10.1016/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. |
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| 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 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 1004-9541 2210-321X |
| DOI: | 10.1016/S1004-9541(11)60066-9 |