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Electrochemical degradation of a real textile effluent using boron-doped diamond or β-PbO2 as anode.
J Hazard Mater. 2011 Sep 15; 192(3):1275-82.JH

Abstract

Constant current electrolyses are carried out in a filter-press reactor using a boron-doped diamond (Nb/BDD) or a Ti-Pt/β-PbO(2) anode, varying current density (j) and temperature. The degradation of the real textile effluent is followed by its decolorization and chemical oxygen demand (COD) abatement. The effect of adding NaCl (1.5 g L(-1)) on the degradation of the effluent is also investigated. The Nb/BDD anode yields much higher decolorization (attaining the DFZ limit) and COD-abatement rates than the Ti-Pt/β-PbO(2) anode, at any experimental condition. The best conditions are j = 5 mA cm(-2) and 55 °C, for the system's optimized hydrodynamic conditions. The addition of chloride ions significantly increases the decolorization rate; thus a decrease of more than 90% of the effluent relative absorbance is attained using an applied electric charge per unit volume of the electrolyzed effluent (Q(ap)) of only about 2 kA h m(-3). Practically total abatement of the effluent COD is attained with the Nb/BDD anode using a Q(ap) value of only 7 kA h m(-3), with an energy consumption of about 30 kW h m(-3). This result allows to conclude that the Nb/BDD electrode might be an excellent option for the remediation of textile effluents.

Authors+Show Affiliations

Departmento de Química, Universidade Federal de São Carlos, CP 676, 13560-970 São Carlos, SP, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21742436

Citation

Aquino, José M., et al. "Electrochemical Degradation of a Real Textile Effluent Using Boron-doped Diamond or β-PbO2 as Anode." Journal of Hazardous Materials, vol. 192, no. 3, 2011, pp. 1275-82.
Aquino JM, Pereira GF, Rocha-Filho RC, et al. Electrochemical degradation of a real textile effluent using boron-doped diamond or β-PbO2 as anode. J Hazard Mater. 2011;192(3):1275-82.
Aquino, J. M., Pereira, G. F., Rocha-Filho, R. C., Bocchi, N., & Biaggio, S. R. (2011). Electrochemical degradation of a real textile effluent using boron-doped diamond or β-PbO2 as anode. Journal of Hazardous Materials, 192(3), 1275-82. https://doi.org/10.1016/j.jhazmat.2011.06.039
Aquino JM, et al. Electrochemical Degradation of a Real Textile Effluent Using Boron-doped Diamond or β-PbO2 as Anode. J Hazard Mater. 2011 Sep 15;192(3):1275-82. PubMed PMID: 21742436.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical degradation of a real textile effluent using boron-doped diamond or β-PbO2 as anode. AU - Aquino,José M, AU - Pereira,Gabriel F, AU - Rocha-Filho,Romeu C, AU - Bocchi,Nerilso, AU - Biaggio,Sonia R, Y1 - 2011/07/13/ PY - 2011/01/21/received PY - 2011/06/13/revised PY - 2011/06/14/accepted PY - 2011/7/12/entrez PY - 2011/7/12/pubmed PY - 2012/1/24/medline SP - 1275 EP - 82 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 192 IS - 3 N2 - Constant current electrolyses are carried out in a filter-press reactor using a boron-doped diamond (Nb/BDD) or a Ti-Pt/β-PbO(2) anode, varying current density (j) and temperature. The degradation of the real textile effluent is followed by its decolorization and chemical oxygen demand (COD) abatement. The effect of adding NaCl (1.5 g L(-1)) on the degradation of the effluent is also investigated. The Nb/BDD anode yields much higher decolorization (attaining the DFZ limit) and COD-abatement rates than the Ti-Pt/β-PbO(2) anode, at any experimental condition. The best conditions are j = 5 mA cm(-2) and 55 °C, for the system's optimized hydrodynamic conditions. The addition of chloride ions significantly increases the decolorization rate; thus a decrease of more than 90% of the effluent relative absorbance is attained using an applied electric charge per unit volume of the electrolyzed effluent (Q(ap)) of only about 2 kA h m(-3). Practically total abatement of the effluent COD is attained with the Nb/BDD anode using a Q(ap) value of only 7 kA h m(-3), with an energy consumption of about 30 kW h m(-3). This result allows to conclude that the Nb/BDD electrode might be an excellent option for the remediation of textile effluents. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/21742436/Electrochemical_degradation_of_a_real_textile_effluent_using_boron_doped_diamond_or_β_PbO2_as_anode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(11)00801-6 DB - PRIME DP - Unbound Medicine ER -