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The influence of TiO2 and aeration on the kinetics of electrochemical oxidation of phenol in packed bed reactor.
J Hazard Mater. 2008 Dec 30; 160(2-3):608-13.JH

Abstract

The electrochemical oxidation of phenolic wastewater in a lab-scale reactor, packed into granular activated carbon (GAC) with Ti/SnO2 anodes and stainless steel cathodes, was interpreted in this study. GAC saturated rapidly if it was only used as sorbent, but application of suitable electric energy for the system simultaneously could recover the adsorption ability of GAC and maintain the continuous running effectively. The titanium dioxide (TiO2) as catalyst and airflow were also applied to the electrochemical reactor to examine the enhancement for phenol oxidation process. Results revealed that the electrochemical degradation of phenol could be reasonably described by first-order kinetics. In addition, it was illustrated that acid region, increased voltage, more dosage of TiO2 and higher aeration intensity were all beneficial parameters for phenol oxidation rates. By inspecting the relationship between the rate constants (k) and influencing factors, respectively, an overall kinetic model for phenol oxidation was proposed. The kinetics obtained from the experiments under corresponding electrochemical conditions could provide an accurate estimation of phenol concentration effluent and better design of the packed bed reactor.

Authors+Show Affiliations

College of Environment and Spatial Informatics, China University of Mining and Technology, South Jiefang Road, Quanshan District, Xuzhou City, Jiangsu 221008, PR China. wlzh0731@126.comNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

18434001

Citation

Wang, Lizhang, et al. "The Influence of TiO2 and Aeration On the Kinetics of Electrochemical Oxidation of Phenol in Packed Bed Reactor." Journal of Hazardous Materials, vol. 160, no. 2-3, 2008, pp. 608-13.
Wang L, Zhao Y, Fu J. The influence of TiO2 and aeration on the kinetics of electrochemical oxidation of phenol in packed bed reactor. J Hazard Mater. 2008;160(2-3):608-13.
Wang, L., Zhao, Y., & Fu, J. (2008). The influence of TiO2 and aeration on the kinetics of electrochemical oxidation of phenol in packed bed reactor. Journal of Hazardous Materials, 160(2-3), 608-13. https://doi.org/10.1016/j.jhazmat.2008.03.034
Wang L, Zhao Y, Fu J. The Influence of TiO2 and Aeration On the Kinetics of Electrochemical Oxidation of Phenol in Packed Bed Reactor. J Hazard Mater. 2008 Dec 30;160(2-3):608-13. PubMed PMID: 18434001.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The influence of TiO2 and aeration on the kinetics of electrochemical oxidation of phenol in packed bed reactor. AU - Wang,Lizhang, AU - Zhao,Yuemin, AU - Fu,Jianfeng, Y1 - 2008/03/20/ PY - 2007/12/13/received PY - 2008/03/07/revised PY - 2008/03/11/accepted PY - 2008/4/25/pubmed PY - 2009/2/10/medline PY - 2008/4/25/entrez SP - 608 EP - 13 JF - Journal of hazardous materials JO - J Hazard Mater VL - 160 IS - 2-3 N2 - The electrochemical oxidation of phenolic wastewater in a lab-scale reactor, packed into granular activated carbon (GAC) with Ti/SnO2 anodes and stainless steel cathodes, was interpreted in this study. GAC saturated rapidly if it was only used as sorbent, but application of suitable electric energy for the system simultaneously could recover the adsorption ability of GAC and maintain the continuous running effectively. The titanium dioxide (TiO2) as catalyst and airflow were also applied to the electrochemical reactor to examine the enhancement for phenol oxidation process. Results revealed that the electrochemical degradation of phenol could be reasonably described by first-order kinetics. In addition, it was illustrated that acid region, increased voltage, more dosage of TiO2 and higher aeration intensity were all beneficial parameters for phenol oxidation rates. By inspecting the relationship between the rate constants (k) and influencing factors, respectively, an overall kinetic model for phenol oxidation was proposed. The kinetics obtained from the experiments under corresponding electrochemical conditions could provide an accurate estimation of phenol concentration effluent and better design of the packed bed reactor. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18434001/The_influence_of_TiO2_and_aeration_on_the_kinetics_of_electrochemical_oxidation_of_phenol_in_packed_bed_reactor_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)00418-4 DB - PRIME DP - Unbound Medicine ER -