Evaluation of Heterogeneous Photocatalytic Treatment for Reuse of a Hotel’s Greywater
Reuse of greywater for non-potable purpose such as irrigation, toilet flushing and groundwater recharge has been evaluated and applied widespread after advanced treatment processes. Specifically advanced oxidation processes present alternative option to integrate with biological treatment as prior or post-treatment to remove recalcitrant organic matters of emerging concern in greywater. This study focuses on the efficiency assessment of heterogeneous photocatalysis (PC) for oxidative degradation of real greywater samples collected at a hotel in Antalya, Turkey, by means of dissolved organic carbon (DOC) and UV254 absorbance removals that correspond the mineralization and degradation rates, respectively. Increasing TiO2 dose from 0.1 to 1 g/L enhanced DOC removal rates. Reduction of suspended solids from greywater using 0.45 microfilters increased DOC removal from 27 to 35% during PC treatment.
KeywordsGreywater Degradation Mineralization Photocatalysis Reuse
This study was inspired from EU COST Actions ES 1202 and ES 1205. The authors would like to thank the grant of Namik Kemal University Research Funding Office to support the MSc Thesis (NKU.BAP.00.17.YL.14.03) and the water treatment utility at the hotel for sampling collaboration.
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