Author, as appears in the article.: Athalathil S; Stüber F; Bengoa C; Font J; Fortuny A; Fabregat A
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: azo dye biodecolorization biological carbonaceous material Azo dye Biodecolorization Biological carbonaceous material Sewage exhausted materials
Abstract: This work presents the preliminary study of new carbonaceous materials (CMs) obtained from exhausted sludge, their use in the heterogeneous anaerobic process of biodecolorization of azo dyes and the comparison of their performance with one commercial active carbon. The preparation of carbonaceous materials was conducted through chemical activation and carbonization. Chemical activation was carried out through impregnation of sludge-exhausted materials with ZnCl2 and the activation by means of carbonization at different temperatures (400, 600 and 800°C). Their physicochemical and surface characteristics were also investigated. Sludge based carbonaceous (SBC) materials SBC400, SBC600 and SBC800 present values of 13.0, 111.3 and 202.0m2/g of surface area. Biodecolorization levels of 76% were achieved for SBC600 and 86% for SBC800 at space time (τ) of 1.0min, similar to that obtained with commercial activated carbons in the continuous anaerobic up-flow packed bed reactor (UPBR). The experimental data fit well to the first order kinetic model and equilibrium data are well represented by the Langmuir isotherm model. Carbonaceous materials show high level of biodecolorization even at very short space times. Results indicate that carbonaceous materials prepared from sludge-exhausted materials have outstanding textural properties and significant degradation capacity for treating textile effluents. © 2013 Elsevier B.V.
Thematic Areas: Astronomia / física Biodiversidade Biotecnología Ciência da computação Ciência de alimentos Ciências agrárias i Ciências ambientais Ciências biológicas i Ciências biológicas ii Ciências biológicas iii Engenharias i Engenharias ii Engenharias iii Engenharias iv Engineering, civil Engineering, environmental Ensino Environmental chemistry Environmental engineering Environmental sciences Farmacia General o multidisciplinar Geociências Geografía Health, toxicology and mutagenesis Interdisciplinar Materiais Medicina ii Odontología Pollution Química Waste management and disposal Zootecnia / recursos pesqueiros
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: jose.font@urv.cat afabrega@urv.cat christophe.bengoa@urv.cat frankerich.stuber@urv.cat agustin.fortuny@urv.cat
ISSN: 03043894
Author identifier: 0000-0002-4007-7905 0000-0002-5525-5401 0000-0001-9160-5010 0000-0001-9424-1400
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S0304389413009618
Papper original source: Journal Of Hazardous Materials. 267 21-30
APA: Athalathil S; Stüber F; Bengoa C; Font J; Fortuny A; Fabregat A (2014). Characterization and performance of carbonaceous materials obtained from exhausted sludges for the anaerobic biodecolorization of the azo dye Acid Orange II. Journal Of Hazardous Materials, 267(), 21-30. DOI: 10.1016/j.jhazmat.2013.12.031
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.jhazmat.2013.12.031
Entity: Universitat Rovira i Virgili
Journal publication year: 2014
Publication Type: Journal Publications
Repositori URV