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Assessment of Low pH Coagulation Performance Using Fluorescence Spectroscopy

Bieroza, Magdalena and Baker, Andy and Bridgeman, John (2011) Assessment of Low pH Coagulation Performance Using Fluorescence Spectroscopy. Journal of environmental engineering-Asce, 137 (7). pp. 596-601. ISSN 0733-9372

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Abstract

Optimization of organic matter (OM) removal is of key importance for effective water treatment, as its presence affects treatment processes. In particular, OM increases the operational cost of treatment caused by increased coagulant and disinfectant demands. In the work reported here, fluorescence spectroscopy is used to assess the effect of changing coagulation pH on OM removal, character, and composition. The results of a 3-month trial of low pH coagulation operation at a major surface water treatment works in the Midlands region of the UK are discussed, together with the effect upon total organic carbon (TOC) removal. OM removal was assessed on the basis of both measured removal and fluorescence-inferred removal (through intensity-reduction measurements). Fluorescence spectroscopy demonstrated that optimized coagulation affects the quantitative and qualitative OM properties. Fluorescence analyses were shown to complement other OM measurements, with reductions of peak intensities correlating well with removal of TOC in a range of different treatment conditions. DOI: 10.1061/(ASCE)EE.1943-7870.0000371. (C) 2011 American Society of Civil Engineers.

Item Type: Article
Journal or Publication Title: Journal of environmental engineering-Asce
Uncontrolled Keywords: Water quality ; Fluorescence ; Organic carbon ; Coagulation ; Water sampling ; DISSOLVED ORGANIC-MATTER ; DRINKING-WATER ; REMOVAL ; CHARACTER ; IMPACT
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 50180
Deposited By: ep_importer_pure
Deposited On: 03 Oct 2011 11:19
Refereed?: Yes
Published?: Published
Last Modified: 06 Sep 2013 22:42
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/50180

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