Title: Removal of bromate and natural organic matter by using biologically activated carbon

Authors: Dongwen Shi, Shuguang Xie, Donghui Wen, Danli Xi

Addresses: School of Environmental Science and Engineering, Donghua University, Shanghai 200051, PR China. ' Department of Environmental Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China. ' Department of Environmental Sciences, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China. ' School of Environmental Science and Engineering, Donghua University, Shanghai 200051, PR China

Abstract: The removal of bromate and Natural Organic Matter (NOM) during the transition from fresh GAC to BAC was investigated by using two GAC filters with different type of GAC. The removal of bromate, nitrate, NOM in GAC filter apparently decreased during the transition. Although high level of anions and NOM, and high pH value may greatly affect bromate reduction in GAC filter, in initial period one GAC filter could still have a significant reduction of bromate ion. Backwashing could have a very limited role on improving bromate reduction during transition of from fresh GAC to BAC.

Keywords: bromate removal; NOM; natural organic matter; biologically activated carbon; BAC; biofilm; Yellow River water; drinking water; China; carcinogenic trihalomethanes; granular activated carbon; GAC.

DOI: 10.1504/IJEP.2009.026660

International Journal of Environment and Pollution, 2009 Vol.38 No.1/2, pp.180 - 192

Available online: 22 Jun 2009 *

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