Author, as appears in the article.: Athalathil, Sunil; Fortuny, Agusti; Font, Josep; Stueber, Frank; Bengoa, Christophe; Fabregat, Azael
Department: Enginyeria Química
URV's Author/s: ATHALATHIL RAMANKUTTY, SUNIL / Bengoa, Christophe José / Fabregat Llangostera, Azael / Font Capafons, José / Fortuny Sanromà, Agustín / Stüber, Frank Erich
Keywords: Water purification; Water pollutants, chemical; Wastewaters; Wastewater treatment; Tartrazine removal; Tartrazine; Sewage sludge; Sewage; Coloring agents; Carbonization; Bioreactors; Bio-decolorization; Anaerobiosis; tartrazine; sewage sludge; carbonization; bio-decolorization
Abstract: © 2015 Taylor & Francis. Two highly efficient (K2CO3/sludge carbon and ZnCl2/sludge carbon) solids were prepared by chemical addition following carbonization at 800 °C and were tested for anaerobic reduction of tartrazine dye in a continuous upflow packed-bed biological reactor, and their performance was compared to that of commercial activated carbon (CAC). The chemical and structural information of the solids was subjected to various characterizations in order to understand the mechanism for anaerobic decolorization, and efficiency for SBCZN800 and SBCPC800 materials was 87% and 74%, respectively, at a short space time (τ) of 2.0 min. A first-order kinetic model fitted the experimental points and kinetic constants of 0.40, 0.92 and 1.46 min-1 were obtained for SBCZN800, SBCPC800 and CAC, respectively. The experimental results revealed that performance of solids in the anaerobic reduction of tartrazine dye can depend on several factors including chemical agents, carbonization, microbial population, chemical groups and surface chemistry. The Langmuir and Freundlich models are successfully described in the batch adsorption data. Based on these observations, a cost-effective sludge-based catalyst can be produced from harmful sewage sludge for the treatment of industrial effluents.
Thematic Areas: Zootecnia / recursos pesqueiros; Water science and technology; Waste management and disposal; Saúde coletiva; Química; Medicine (miscellaneous); Materiais; Interdisciplinar; Geociências; General medicine; Farmacia; Environmental sciences; Environmental chemistry; Engenharias iii; Engenharias ii; Engenharias i; Ciências biológicas iii; Ciências biológicas ii; Ciências biológicas i; Ciências ambientais; Ciências agrárias i; Ciência de alimentos; Biotecnología; Biodiversidade; Astronomia / física; Administração pública e de empresas, ciências contábeis e turismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 09593330
Author's mail: agustin.fortuny@urv.cat; frankerich.stuber@urv.cat; christophe.bengoa@urv.cat; afabrega@urv.cat; jose.font@urv.cat
Record's date: 2025-02-19
Paper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.tandfonline.com/doi/full/10.1080/09593330.2015.1037361
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Paper original source: Environmental Technology. 36 (20): 2568-2576
APA: Athalathil, Sunil; Fortuny, Agusti; Font, Josep; Stueber, Frank; Bengoa, Christophe; Fabregat, Azael (2015). A potential application of sludge-based catalysts for the anaerobic bio-decolorization of tartrazine dye. Environmental Technology, 36(20), 2568-2576. DOI: 10.1080/09593330.2015.1037361
Article's DOI: 10.1080/09593330.2015.1037361
Entity: Universitat Rovira i Virgili
Journal publication year: 2015
Publication Type: Journal Publications
Repositori URV