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Publisher DOI: 10.4236/jep.2015.63020
Title: Impact of powdered activated carbon and anion exchange resin on photocatalytic treatment of textile wastewater
Language: English
Authors: Dhas, Preethi Grace Theva Neethi 
Gulyas, Holger 
Otterpohl, Ralf 
Keywords: Activated Carbon;Anion Exchange;Hybrid Process;Photocatalytic Oxidation;Textile Industry Effluent
Issue Date: 5-Mar-2015
Publisher: Scientific Research Publishing (SCIRP)
Source: Journal of Environmental Protection Vol.6 No.3(2015), Paper ID 54421
Journal or Series Name: Journal of Environmental Protection 
Abstract (english): In order to clarify the impact of activated carbon and anion exchange resin on photocatalytic oxidation (PCO) of textile industry wastewater, TiO2-based PCO was investigated with aqueous solutions containing the reactive dye Reactive Blue 4 (RB4) and with a textile dye house effluent in the absence and in the presence of powdered activated carbon (PAC) and the anion exchange resin Lewatit MP 500. Addition of Lewatit improved RB4 removal to a larger extent than PAC addition. Contrasting to chloride and sulfate, hydrogen carbonate clearly inhibited PCO of RB4. However, the depression of dye removal by hydrogen carbonate was minute in the presence of Lewatit although the hydrogen carbonate concentration was not markedly decreased. Unfortunately, the beneficial effect of Lewatit addition on PCO nearly disappeared when the Lewatit/TiO2 mixture was reused three times. This was probably caused by oxidative damage of the resin. Color removal from the real dye house effluent during PCO was improved by Lewatit, but not by PAC. Contrastingly, PAC addition increased TOC removal by PCO from the real wastewater to some extent, while Lewatit had no impact. Sorbent addition does not lead to an acceptable area demand for solar PCO of the dye house effluent.
DOI: 10.15480/882.1226
ISSN: 2152-2219
Institute: Abwasserwirtschaft und Gewässerschutz B-2 
Type: (wissenschaftlicher) Artikel
Funded by: International Postgraduate Studies on Water Technologies (IPSWAT) program (BMBF)
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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