TY - JOUR AU - 조용식 DA - 2015/12 PY - 2015 UR - http://ws.iwaponline.com/content/15/6/1383 UR - http://hdl.handle.net/20.500.11754/29549 AB - Removal of natural organic matter (NOM) and taste and odor problems in drinking water are a sensitive issue in municipal water treatment plants. This study investigated the effectiveness of ozone (O-3) + granular activated carbon (GAC), O-3 + hydroperoxide (H2O2) + GAC, and GAC processes using a pilot scale plant to remove NOM and geosmin (50-1,000 ng/L), and 2-methylisoborneol (2-MIB: 50-300 ng/L). In the O-3 + GAC process, NOM-related parameters showed an average of 52% dissolved organic carbon (DOC) removal from 2 mg/L DOC influent, 99.3% haloacetic acids (HAAs) removal from 0.097 mg/L HAAs influent, and 100% removal from 0.05 mg/L bromide influent. Taste and odor removal rates were 94-100% for geosmin and 87-100% for 2-MIB. The O-3 + H2O2 + GAC process removed an average of 55% DOC, 99.7% HAAs, 100% bromate, 94-100% geosmin, and 93-100% 2-MIB. The GAC process removed 46% DOC, 98.3% HAAs, 100% bromate, 83-100% geosmin, and 81-100% 2-MIB. Based on a comparison of the efficiencies and an economic analysis, the O-3 + H2O2 + GAC process was determined to be the optimal system for removing NOM and taste and odor compounds. PB - International Water Association Publishing KW - advanced oxidation processes (AOPs) KW - GAC KW - geosmin KW - hydrogen peroxide KW - NOM KW - 2-MIB TI - Comparison of O3+ GAC, O3+H2O2+GAC, and GAC unit operation on natural organic matter and taste and odor causing compounds removal using a pilot plant study IS - 6 VL - 15 DO - 10.2166/ws.2015.102 T2 - Water Science and Technology: Water Supply ER -