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Coagulation and nano-filtration: a hybrid system for the removal of lower molecular weight organic compounds (LMWOC)

Wang, Yuanfang, Shu, Li, Jegatheesan, Veeriah and Gao, Baoyu 2009, Coagulation and nano-filtration: a hybrid system for the removal of lower molecular weight organic compounds (LMWOC), Desalination and water treatment, vol. 11, pp. 23-31.

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Title Coagulation and nano-filtration: a hybrid system for the removal of lower molecular weight organic compounds (LMWOC)
Author(s) Wang, Yuanfang
Shu, Li
Jegatheesan, Veeriah
Gao, Baoyu
Journal name Desalination and water treatment
Volume number 11
Start page 23
End page 31
Total pages 9
Publisher Balaban Publishers
Place of publication Hopkinton, Mass.
Publication date 2009
ISSN 1944-3994
1944-3986
Keyword(s) coagulation
diuron
low molecular weight organic substances (LMWOC)
nano-filtration
poly-aluminum chloride
reverse osmosis (RO)
Summary The removal of lower molecular weight organic compounds (LMWOC) from water is of increasing concern. While, nano-fi ltration (NF) is a good option, it removes only a fraction of the LMWOC. In this paper, NF experiments were conducted to remove oxalic acid and diuron in combination with coagulation using poly-aluminum chloride (PAC) as the coagulant. The results showed that this hybrid treatment system was effective in removing oxalic acid where almost a 100% removal effi ciency of oxalic acid was achieved. However, using PAC as coagulant to remove diuron from water was not effective. In order to improve the removal efficiency of diuron, 0.02 M NaCl was added to diuron and a 40% increase in the removal of diuron was achieved. Higher removal of diuron was achieved when the solution was treated with reverse osmosis (RO) when compared to the nano-filtration.
Notes Presented at CESE-2009, Challenges in Environmental Science & Engineering, 14–17 July, 2009, Townsville, Queensland, Australia.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, Desalination Publications. All rights reserved.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039650

Document type: Journal Article
Collection: School of Engineering
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