Abstract
Effective technologies for degradation of organics in beauty hair salon (BHS) wastewater due to partial removal of personal care products (PCPs) from influent wastewater during wastewater treatment remain a priority in sustainable water treatment processes. The presence of these products in the environment increases the risks of surface water contamination and associated issues. In the present study, three types of BHS wastewater samples; raw, rapid granular multimedia (RGM) filtered, and RGM and carbon nanotube polyethersulfone (CNT/PES) ultrafiltration (UF) membrane filtered samples were exposed to PDS under solar light radiation and dark conditions. The main aim of this study was to determine the ideal treatment options and sequence of the mentioned treatment technologies. In the RGM and membrane filtered water samples the acidic conditions (pH 2–6) and corresponding lower organic loads were found to be both beneficial for PDS efficacy to degrade organics. TOC removal values of 18.32 %, 53.31 %, 89.74 % at the highest PDS dosage for the BHS, RGM filtered, and RGM and membrane filtered samples, respectively, were observed after 7 h of solar/PDS treatment. Moreover, solar/PDS treatment demonstrated enhanced efficiency in the degradation of organics in the RGM, and RGM and membrane prefiltered samples as confirmed by marked reduction in peak intensities of the organics in quadrupole time-of-flight liquid chromatography mass spectrometry (QTOF LC MS) data sets. Evidently, solar activated PDS for 7 h of the RGM and membrane filtered BHS samples showed the highest load reduction of organics. This study facilitates further insight into a promising multistep technology approach for the efficient treatment of BHS wastewater to help ensure a healthy aqueous environment.
Published Version
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