Articles producció científica> Enginyeria Química

New sludge-based carbonaceous materials impregnated with different metals for anaerobic azo-dye reduction

  • Identification data

    Identifier: imarina:6388017
    Authors:
    Athalathil SFont JFortuny AStüber FBengoa CFabregat A
    Abstract:
    © 2014 Elsevier Ltd. All rights reserved. The addition of Ni2+, Zn2+, Fe2+ and Co2+ to the carbonaceous materials obtained from waste exhausted solid sludges and their use in the heterogeneous anaerobic reduction of aqueous solutions of the azo dye acid orange II (AOII) in a continuous up flow packed bed biological reactor (UPBR) were investigated. The surface chemistry of new sludge based catalysts (SBCs) was characterized by various tools in order to reveal the physico-chemical properties of the materials. The catalysts were also tested for isotherm batch adsorption with AOII dye showing good fitting to the Langmuir isotherm. The impregnation process of the dried sludge was carried out through 1 mol/L solution of salts of the different metals, followed by carbonization at 600°C. In the UPBR, high values of AOII dye reduction were achieved at very short space times (τ). AOII conversion was 78% for SBCZn600, 57% for SBCFe600, and 55% for SBCNi600 at a space time of 1.0 min, comparable with that obtained with commercial activated carbons (CAC). 97% of AOII conversion was achieved for SBCFe600 catalyst at 4.0 min of space time, during 100-days continuous operation without loss of catalytic activity. The results show that the catalytic abilities of impregnated catalyst in the heterogeneous anaerobic reduction of dye molecules is depended on the distribution of metal particle on the surface and, can substitute commercial activated carbons for their use in the elimination of contaminated dye solutions from textile industries.
  • Others:

    Author, as appears in the article.: Athalathil S; Font J; Fortuny A; Stüber F; Bengoa C; Fabregat A
    Department: Enginyeria Química
    URV's Author/s: ATHALATHIL RAMANKUTTY, SUNIL / Bengoa, Christophe José / Fabregat Llangostera, Azael / Fabregat Sanjuan, Albert / Font Capafons, José / Fortuny Sanromà, Agustín / Stüber, Frank Erich
    Keywords: Impregnation process Carbonaceous materials Biofilm Biodecolorization Anaerobic reactor
    Abstract: © 2014 Elsevier Ltd. All rights reserved. The addition of Ni2+, Zn2+, Fe2+ and Co2+ to the carbonaceous materials obtained from waste exhausted solid sludges and their use in the heterogeneous anaerobic reduction of aqueous solutions of the azo dye acid orange II (AOII) in a continuous up flow packed bed biological reactor (UPBR) were investigated. The surface chemistry of new sludge based catalysts (SBCs) was characterized by various tools in order to reveal the physico-chemical properties of the materials. The catalysts were also tested for isotherm batch adsorption with AOII dye showing good fitting to the Langmuir isotherm. The impregnation process of the dried sludge was carried out through 1 mol/L solution of salts of the different metals, followed by carbonization at 600°C. In the UPBR, high values of AOII dye reduction were achieved at very short space times (τ). AOII conversion was 78% for SBCZn600, 57% for SBCFe600, and 55% for SBCNi600 at a space time of 1.0 min, comparable with that obtained with commercial activated carbons (CAC). 97% of AOII conversion was achieved for SBCFe600 catalyst at 4.0 min of space time, during 100-days continuous operation without loss of catalytic activity. The results show that the catalytic abilities of impregnated catalyst in the heterogeneous anaerobic reduction of dye molecules is depended on the distribution of metal particle on the surface and, can substitute commercial activated carbons for their use in the elimination of contaminated dye solutions from textile industries.
    Thematic Areas: Waste management and disposal Química Process chemistry and technology Pollution Materiais Matemática / probabilidade e estatística Interdisciplinar Farmacia Engineering, environmental Engineering, chemical Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemical engineering (miscellaneous) Biotecnología Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 22133437
    Author's mail: agustin.fortuny@urv.cat frankerich.stuber@urv.cat christophe.bengoa@urv.cat afabrega@urv.cat jose.font@urv.cat a.fabregat@urv.cat
    Author identifier: 0000-0001-9424-1400 0000-0001-9160-5010 0000-0002-5525-5401 0000-0002-4007-7905 0000-0002-2878-1369
    Record's date: 2024-09-28
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S2213343714001444
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Journal Of Environmental Chemical Engineering. 3 (1): 104-112
    APA: Athalathil S; Font J; Fortuny A; Stüber F; Bengoa C; Fabregat A (2015). New sludge-based carbonaceous materials impregnated with different metals for anaerobic azo-dye reduction. Journal Of Environmental Chemical Engineering, 3(1), 104-112. DOI: 10.1016/j.jece.2014.07.002
    Article's DOI: 10.1016/j.jece.2014.07.002
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2015
    Publication Type: Journal Publications
  • Keywords:

    Chemical Engineering (Miscellaneous),Engineering, Chemical,Engineering, Environmental,Pollution,Process Chemistry and Technology,Waste Management and Disposal
    Impregnation process
    Carbonaceous materials
    Biofilm
    Biodecolorization
    Anaerobic reactor
    Waste management and disposal
    Química
    Process chemistry and technology
    Pollution
    Materiais
    Matemática / probabilidade e estatística
    Interdisciplinar
    Farmacia
    Engineering, environmental
    Engineering, chemical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Chemical engineering (miscellaneous)
    Biotecnología
    Astronomia / física
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