Abstract |
This study was performed to investigate the characteristics of granular activated carbon (GAC) adsorption and membrane filtration (MF) processes for an advanced water treatment. Influent concentration were on average UV254 0.237cm-1, dissolved organic carbon (DOC) 9.3mg/L, dissolved total nitrogen (DTN) 0.558mg/L and dissolved total phosphorus (DTP) 0.014mg/L, respectively. As a result, MF process compared to GAC adsorption process was slightly effective in removing UV254 and DOC, whereas in removing DTN and DTP, GAC adsorption process was much more effective than that of MF process. Coulped GAC adsorption with MF process achieved good efficiencies more than 50% in removing dissolved organic and nutrients. These results indicate that the introduction of GAC adsorption process prior to membrane filtration process is necessary for an cost-effective advanced water treatment due to efficient reduction of substrate and transmembrane pressure (TMP). |
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Key Words |
Membrane filtration process, GAC adsorption, pretreatment, TMP, humic substance, advanced water treatment |
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