Please use this identifier to cite or link to this item:
Title: Effect of hybrid coagulation-membrane filtration on downstream UV disinfection
Authors: Guo, H.
Hu, J. 
Keywords: Coagulation
UV disinfection
Virus removal
Issue Date: 30-Mar-2012
Citation: Guo, H., Hu, J. (2012-03-30). Effect of hybrid coagulation-membrane filtration on downstream UV disinfection. Desalination 290 : 115-124. ScholarBank@NUS Repository.
Abstract: Recent studies have demonstrated the promising application of membrane filtration and UV disinfection in drinking water treatment. This research on virus removal originated from two important considerations: (i) reduced virus rejection following hydraulic backwash and (ii) UV disinfection can be adversely compromised by upstream treatment performance. The effect of upstream coagulation-membrane filtration on UV disinfection has not been well understood. This study therefore provides an investigation on this issue using a batch and continuous-mode system. For MF filtration, low MS2 rejections were observed initially, followed by gradual increase in rejections as filtration time increased. This adversely affected the UV dose requirements downstream when a specified log removal was to be attained by this hybrid membrane-UV disinfection system. Overall, UV disinfection efficacy of MS2-associated flocs was higher than unassociated-MS2. Inactivation (positive effect) by the presence of coagulants was more dominant than the negative effects of turbidity. Although it was anticipated that MS2 rejection might be compromised immediately following backwashing of MF, results did not indicate so. MS2 rejections initially fluctuated in the range of 86%-100%, and increased gradually to 100% as filtration time increased. Following hydraulic backwash, MS2 rejection still maintained consistent at 100%. © 2012 Elsevier B.V.
Source Title: Desalination
ISSN: 00119164
DOI: 10.1016/j.desal.2012.01.015
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Feb 18, 2019


checked on Feb 18, 2019

Page view(s)

checked on Dec 15, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.