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Verlagslink: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54421#.VQvuAI4zBKg
Verlagslink DOI: 10.4236/jep.2015.63020
Titel: Impact of powdered activated carbon and anion exchange resin on photocatalytic treatment of textile wastewater
Sprache: Englisch
Autor/Autorin: Dhas, Preethi Grace Theva Neethi
Gulyas, Holger
Otterpohl, Ralf
Schlagwörter: Activated Carbon;Anion Exchange;Hybrid Process;Photocatalytic Oxidation;Textile Industry Effluent
Erscheinungsdatum: 5-Mär-2015
Verlag: Scientific Research Publishing (SCIRP)
Quellenangabe: Journal of Environmental Protection ; 6.2015, pp. 191-203
Zusammenfassung (englisch): 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.
URI: http://tubdok.tub.tuhh.de/handle/11420/1228
URN: urn:nbn:de:gbv:830-88212409
DOI: 10.15480/882.1226
Institut: Abwasserwirtschaft und Gewässerschutz B-2
Dokumenttyp: Sonstiges
Sponsor / Fördernde Einrichtung: International Postgraduate Studies on Water Technologies (IPSWAT) program (BMBF)
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