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Possible changes of pore size during nanofiltration

Shu, L., Waite, T. D., Bliss, P. J., Fane, A. G., Pailthorpe, M. T. and Jegatheesan, V. 2003, Possible changes of pore size during nanofiltration, in Water quality management and the environment in Asia (Asian waterqual 2003). : selected proceedings of Asian Waterqual 2003, the IWA Asia-Pacific Regional Conference, held in Bangkok, Thailand, 19-23 October 2003, IWA Publishing, London, England.

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Title Possible changes of pore size during nanofiltration
Author(s) Shu, L.
Waite, T. D.
Bliss, P. J.
Fane, A. G.
Pailthorpe, M. T.
Jegatheesan, V.
Conference name IWA Asia-Pacific Regional Conference (2003 : Bangkok, Thailand)
Conference location Bangkok, Thailand
Conference dates 20-22 Oct. 2003
Title of proceedings Water quality management and the environment in Asia (Asian waterqual 2003). : selected proceedings of Asian Waterqual 2003, the IWA Asia-Pacific Regional Conference, held in Bangkok, Thailand, 19-23 October 2003
Editor(s) Panswad, T.
Polprasert, C.
Karnchanawong, S.
Publication date 2003
Series Water science and technology
Conference series IWA Asia-Pacific Regional Conference
Publisher IWA Publishing
Place of publication London, England
Keyword(s) dyeing wastewater treatment
membrane nanofiltration
membrane swelling
reactive dyes
textile industry
water reuse
Summary The textile industry plays an important role in the world economy as well as our daily life. However, the industry consuming a large quantity of water and generating huge amount of wastewater are unsustainable to the conservation of our precious resources and environment and need improvement. The wastewater, especially the one from spent cotton reactive dyebaths, contains high salt content, various dyes and high alkalinity. This study was carried out to investigate the feasibility of membrane filtration treating spent cotton reactive dye baths. A stirred cell with nanofiltration membrane was used aiming at reusing the reclaimed water. Spent dyebath solutions were synthesized containing hydrolyzed C. I. Reactive Black 5 and sodium chloride. When a piece of membrane was used repeatedly it was expected the flux would decrease after each usage due to fouling of impurities. However, it was found that the water flux increased while dye rejection decreased after each run. At pH 10, the dye rejection decreased significantly. It was proposed that the pore sizes of membrane might have changed during membrane filtration. An equation was derived calculating the possible changes of pore sizes.
ISBN 9781843394822
1843394820
ISSN 0273-1223
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039593

Document type: Conference Paper
Collection: Faculty of Science, Engineering and Built Environment
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