| Removal of geosmin and 2-methylisoborneol during managed aquifer recharge: batch and column studies |
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학술지명 IWA
저자 박노석,맹승규,Abel,Sharma,Garry
발표일 2012-06-29
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Managed aquifer recharge is a robust barrier in the multi-barrier approach to supply safe drinkingwater. The removal performance of gesomin and 2-methylisoborneol through managed aquiferrecharge was investigated using batch and column experiments. Batch experiments were carried outto investigate the removal of geosmin and 2-methylisoborneol (MIB) in the presence of differenttypes of biodegradable organic matter using different types of water. Five different types of waterspiked with 70?293 ng/L of geosmin and MIB were used in batch reactors, and complete removal ofgeosmin and MIB (down to the detection limit) was achieved in all cases. Soil column studies showedthat biodegradation contributed to the removal of geosmin and MIB by 23 and 31%, respectively(empty bed contact time: 17 hours). The removal of geosmin and MIB appeared to be influencedmore by microbial activity than the initial concentrations of geosmin and MIB. Adsorption was foundto be the dominant mechanism (major role) followed by biodegradation (minor role) for geosmin andMIB removals during soil passage. Managed aquifer charge can therefore be used as a robust barrierto remove taste and odor (T&O) causing compounds. |