Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Assessment of Low pH Coagulation Performance Using Fluorescence Spectroscopy
AU - Bieroza, Magdalena
AU - Baker, Andy
AU - Bridgeman, John
PY - 2011/7
Y1 - 2011/7
N2 - 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.
AB - 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.
KW - Water quality
KW - Fluorescence
KW - Organic carbon
KW - Coagulation
KW - Water sampling
KW - DISSOLVED ORGANIC-MATTER
KW - DRINKING-WATER
KW - REMOVAL
KW - CHARACTER
KW - IMPACT
U2 - 10.1061/(ASCE)EE.1943-7870.0000371
DO - 10.1061/(ASCE)EE.1943-7870.0000371
M3 - Journal article
VL - 137
SP - 596
EP - 601
JO - Journal of Environmental Engineering
JF - Journal of Environmental Engineering
SN - 0733-9372
IS - 7
ER -