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- W3014519996 abstract "Proper granular activated carbon (GAC) selection could improve the performance of biological activated carbon (BAC) filters through a combination of adsorption and biodegradation, while the GACs used in BAC filters are now mainly selected according to adsorption function, ignoring biodegradation. In this study, sand filter effluent obtained from a drinking water treatment plant was fed into continuous-flow bench-scale BAC columns operated in parallel over 245 days to examine the effects of GAC pore-size distribution on BAC filter performance, in terms of the dissolved organic carbon (DOC) and disinfection byproduct (DBP) precursors. A metagenomic analysis indicated that bacterial community structure played an important role in BAC filter performance. A significant correlation was found between metabolism-related proteins and the volume of micro-level macropores based on metaproteomic analysis. It is suggested that the adsorption saturation was dynamic and that adsorption played a role in the performance of the BAC filters throughout the 245-day operating period. Renewed adsorption capacity, or bioregeneration, was driven by bacterial metabolic activity. Such activity largely depended on the organic matter adsorbed by the GAC, in which micro-level macropores, especially those with diameters of 0.2-10 μm, played an important but previously unrecognized role. The results suggest that more attention should be paid to well-developed pores and pore-size distribution in the production and selection of GAC used for full-scale drinking water biofilters." @default.
- W3014519996 created "2020-04-10" @default.
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- W3014519996 date "2020-06-01" @default.
- W3014519996 modified "2023-10-17" @default.
- W3014519996 title "Effect of granular activated carbon pore-size distribution on biological activated carbon filter performance" @default.
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- W3014519996 doi "https://doi.org/10.1016/j.watres.2020.115768" @default.
- W3014519996 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32278992" @default.
- W3014519996 hasPublicationYear "2020" @default.
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