Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/97418
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Type: Journal article
Title: Comparison of coagulation and MIEX pre-treatment processes for bacterial and turbidity removal, utilizing real-time optical monitoring techniques
Author: Braun, K.
Cruaux, L.
Fabris, R.
Morran, J.
Ho, L.
Drikas, M.
Citation: Environmental Technology, 2014; 35(8):1038-1045
Publisher: Taylor & Francis
Issue Date: 2014
ISSN: 0959-3330
1479-487X
Statement of
Responsibility: 
K. Braun, L. Cruaux, R. Fabris, J. Morran, L. Ho and M. Drikas
Abstract: Jar testing and flow cytometry were used in conjunction with photometric dispersion analysis (PDA) to assess conventional alum coagulation with and without magnetic ion exchange (MIEX) pre-treatment for turbidity and bacterial removal capacity. Treatment assessment included powdered activated carbon (PAC) and pre-chlorination of the MIEX-treated raw water. Floc particles were subjected to shear forces after settling and re-suspended to gauge bacterial release potential, floc breakage and re-aggregation. MIEX in conjunction with alum coagulation achieved improved coagulation as measured by PDA but did not increase bacterial log removal value (LRV) in comparison with conventional coagulation. Pre-chlorination and PAC addition were seen to improve bacterial removal and coagulation, respectively, but were less effective for bacterial LRVs when they were used in conjunction during coagulation.
Keywords: log removal
coagulation
MIEX
photometric dispersion analyser (PDA)
flow cytometry
floc breakage
Rights: © 2013 Taylor & Francis
DOI: 10.1080/09593330.2013.859737
Appears in Collections:Aurora harvest 3
Chemical Engineering publications

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