BIODEGRADATION CHARACTERISTICS OF ORGANIC MATTER IN SOIL AQUIFER TREATMENT WITH SHORT HRT FOR INDIRECT POTABLE REUSE

Abstract

 This study investigated the water purification and biodegradation characteristics of organic matter in soil aquifer treatment (SAT) with short HRT for indirect potable reuse was discussed. 70.7 and 74.3% of DOC removal from treated effluent was obtained by SAT with HRT of at 3.5 days and 7 days, respectively, and high DOC removal in SAT within HRT of 3.5 days was suggested. From the view pointviewpoint of reduction reducing the formation of disinfection by-products for-mation potential, the effectiveness of SAT with short HRT was also suggested. Analysis of the biodegradation characteristics of organic matter by Biolog EcoPlatesTM cleared indicated that the biodegradation characteristics was were changed through the SAT infiltration with HRT of approximately 1 day in summer, and removal of a diverse range of organic matter by biodegra-dabiodegradation-tion was is expected in SAT with short HRT.