scholarly journals On-line monitoring of organic matter concentrations and character in drinking water treatment systems using fluorescence spectroscopy

2016 ◽  
Vol 2 (4) ◽  
pp. 749-760 ◽  
Author(s):  
Y. Shutova ◽  
A. Baker ◽  
J. Bridgeman ◽  
R. K. Henderson
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Fluorescence Spectroscopy ◽  
Drinking Water Treatment ◽  
Robust Method ◽  
On Line

There is a need for a rapid and robust method of organic matter (OM) monitoring during drinking water treatment.

scholarly journals Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

2010 ◽  
Vol 3 (1) ◽  
pp. 63-70 ◽  
Author(s):  
M. Z. Bieroza ◽  
J. Bridgeman ◽  
A. Baker
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Fluorescence Spectroscopy ◽  
Removal Efficiency ◽  
Distribution System ◽  
Drinking Water Treatment ◽  
Analytical Techniques ◽  
Fluorescence Excitation

Abstract. Organic matter (OM) in drinking water treatment is a common impediment responsible for increased coagulant and disinfectant dosages, formation of carcinogenic disinfection-by products, and microbial re-growth in distribution system. The inherent heterogeneity of OM implies the utilization of advanced analytical techniques for its characterization and assessment of removal efficiency. Here, the application of simple fluorescence excitation-emission technique to OM characterization in drinking water treatment is presented. The fluorescence data of raw and clarified water was obtained from 16 drinking water treatment works. The reduction in fulvic-like fluorescence was found to significantly correlate with OM removal measured with total organic carbon (TOC). Fluorescence properties, fulvic- and tryptophan-like regions, were found to discriminate OM fractions of different removal efficiencies. The results obtained in the study show that fluorescence spectroscopy provides a rapid and accurate characterization and quantification of OM fractions and indication of their treatability in conventional water treatment.

scholarly journals Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

2009 ◽  
Vol 2 (2) ◽  
pp. 259-278 ◽  
Author(s):  
M. Z. Bieroza ◽  
J. Bridgeman ◽  
A. Baker
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Fluorescence Spectroscopy ◽  
Removal Efficiency ◽  
Distribution System ◽  
Drinking Water Treatment ◽  
Analytical Techniques ◽  
Fluorescence Excitation

Abstract. Organic matter (OM) in drinking water treatment is a common impediment responsible for increased coagulant and disinfectant dosages, formation of carcinogenic disinfection-by products, and microbial re-growth in distribution system. The inherent heterogeneity of OM implies the utilization of advanced analytical techniques for its characterization and assessment of removal efficiency. Here, the application of simple fluorescence excitation-emission technique to OM characterization in drinking water treatment is presented. The fluorescence data of raw and clarified water was obtained from 16 drinking water treatment works. The reduction in fulvic-like fluorescence was found to significantly correlate with OM removal measured with total organic carbon (TOC). Fluorescence properties, fulvic- and tryptophan-like regions, were found to discriminate OM fractions of different removal efficiencies. The results obtained in the study show that fluorescence spectroscopy provides a rapid and accurate characterization and quantification of OM fractions and indication of their treatability in conventional water treatment.

scholarly journals Natural organic matter removal by ion exchange at different positions in the drinking water treatment lane

2013 ◽  
Vol 6 (1) ◽  
pp. 1-10 ◽  
Author(s):  
A. Grefte ◽  
M. Dignum ◽  
E. R. Cornelissen ◽  
L. C. Rietveld
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Organic Carbon ◽  
Natural Organic Matter ◽  
Drinking Water Treatment ◽  
Biological Stability ◽  
Sand Filtration ◽  
Slow Sand Filtration

Abstract. To guarantee a good water quality at the customers tap, natural organic matter (NOM) should be (partly) removed during drinking water treatment. The objective of this research was to improve the biological stability of the produced water by incorporating anion exchange (IEX) for NOM removal. Different placement positions of IEX in the treatment lane (IEX positioned before coagulation, before ozonation or after slow sand filtration) and two IEX configurations (MIEX® and fluidized IEX (FIX)) were compared on water quality as well as costs. For this purpose the pre-treatment plant at Loenderveen and production plant Weesperkarspel of Waternet were used as a case study. Both, MIEX® and FIX were able to remove NOM (mainly the HS fraction) to a high extent. NOM removal can be done efficiently before ozonation and after slow sand filtration. The biological stability, in terms of assimilable organic carbon, biofilm formation rate and dissolved organic carbon, was improved by incorporating IEX for NOM removal. The operational costs were assumed to be directly dependent of the NOM removal rate and determined the difference between the IEX positions. The total costs for IEX for the three positions were approximately equal (0.0631 € m−3), however the savings on following treatment processes caused a cost reduction for the IEX positions before coagulation and before ozonation compared to IEX positioned after slow sand filtration. IEX positioned before ozonation was most cost effective and improved the biological stability of the treated water.

Characterization of organic matter and disinfection by-products in membrane backwash water from drinking water treatment

2009 ◽  
Vol 168 (2-3) ◽  
pp. 753-759 ◽  
Author(s):  
Lingling Zhang ◽  
Ping Gu ◽  
Zijie Zhong ◽  
Dong Yang ◽  
Wenjie He ◽  
...  
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
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