Humic substances (HS) cause problems in water purification because of disinfection by-product (DBP) formation during chlorination. The efficiency of activated carbon (AC) adsorption as a method in drinking water treatment has been investigated in removing HS at different pH values (pH = 5; 6; 7; 8) in static equilibrium experiments. The degradation of HS was studied with an EM (effective microorganisms) bacteria community, and solutions of fulvic acid, sodium humate furthermore extracts of sandy soil were investigated. EM products are widely used but their effect on HS has not been investigated before. The combination of EM and AC methods in the case of fulvic acid resulted in higher performance than any of these methods alone. Humic substances were analyzed using a UV–VIS spectrophotometer and by total organic carbon (TOC) measurements. The carbon/nitrogen ratio was also determined, which enabled conclusions to be made for the nutrient supply. According to these results the degradation was efficient, especially in fulvic acid solutions.
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Research Article|
February 01 2012
Removal of dissolved organic matter (DOM) from water with activated carbon and effective microorganisms Available to Purchase
Szilvia Joó;
Szilvia Joó
1Department of Earth and Environmental Sciences, University of Pannonia, 8200 Veszprém, Egyetem u. 10., Hungary
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Rita Földényi
1Department of Earth and Environmental Sciences, University of Pannonia, 8200 Veszprém, Egyetem u. 10., Hungary
E-mail: [email protected]
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Water Supply (2012) 12 (1): 65–71.
Article history
Received:
May 16 2011
Accepted:
November 07 2011
Citation
Szilvia Joó, Rita Földényi; Removal of dissolved organic matter (DOM) from water with activated carbon and effective microorganisms. Water Supply 1 February 2012; 12 (1): 65–71. doi: https://doi.org/10.2166/ws.2011.119
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