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Anodic oxidation of 1,4-dioxane on boron-doped diamond electrodes for wastewater treatment.
J Hazard Mater. 2010 Jul 15; 179(1-3):762-8.JH

Abstract

A study of the anodic oxidation of 1,4-dioxane, a refractory water pollutant, by boron-doped diamond (BDD) electrodes was carried out under a range of major system variables: initial concentration, current density, temperature, pH, and electrolyte concentration. The 1,4-dioxane removal behavior was monitored by chemical oxygen demand (COD), and the results were compared with theoretical models for the electrochemical incineration of organic compounds. The removal efficiency of COD was shown to be greater than 95% in most cases, and no electrode fouling was observed during the reaction. Experimental degradation behavior agreed well with the theoretical models, implying that system variables can be predicted, even when the process is applied at pilot scale. Processes conducted at lower initial concentrations and higher temperatures yielded better energy consumption efficiency. Conditions of higher current density yielded faster degradation but need greater quantities of charge loading into the system. Therefore, a compromise between treatment time and energy consumption is required to achieve the desired efficiency. Meanwhile, pH and electrolyte concentrations did not affect reaction efficiency, suggesting that pH adjustment prior to wastewater treatment is not necessary. Thus, anodic oxidation of 1,4-dioxane by BDD electrodes promises to be both an economical and an efficient in wastewater treatment process.

Authors+Show Affiliations

Department of Chemical and Biomolecular Engineering (BK21 Program), KAIST, Daejeon 305-701, Republic of Korea.No 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

20381243

Citation

Choi, Jong Young, et al. "Anodic Oxidation of 1,4-dioxane On Boron-doped Diamond Electrodes for Wastewater Treatment." Journal of Hazardous Materials, vol. 179, no. 1-3, 2010, pp. 762-8.
Choi JY, Lee YJ, Shin J, et al. Anodic oxidation of 1,4-dioxane on boron-doped diamond electrodes for wastewater treatment. J Hazard Mater. 2010;179(1-3):762-8.
Choi, J. Y., Lee, Y. J., Shin, J., & Yang, J. W. (2010). Anodic oxidation of 1,4-dioxane on boron-doped diamond electrodes for wastewater treatment. Journal of Hazardous Materials, 179(1-3), 762-8. https://doi.org/10.1016/j.jhazmat.2010.03.067
Choi JY, et al. Anodic Oxidation of 1,4-dioxane On Boron-doped Diamond Electrodes for Wastewater Treatment. J Hazard Mater. 2010 Jul 15;179(1-3):762-8. PubMed PMID: 20381243.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anodic oxidation of 1,4-dioxane on boron-doped diamond electrodes for wastewater treatment. AU - Choi,Jong Young, AU - Lee,You-Jin, AU - Shin,Jina, AU - Yang,Ji-Won, Y1 - 2010/03/23/ PY - 2009/08/26/received PY - 2010/03/13/revised PY - 2010/03/15/accepted PY - 2010/4/13/entrez PY - 2010/4/13/pubmed PY - 2010/8/13/medline SP - 762 EP - 8 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 179 IS - 1-3 N2 - A study of the anodic oxidation of 1,4-dioxane, a refractory water pollutant, by boron-doped diamond (BDD) electrodes was carried out under a range of major system variables: initial concentration, current density, temperature, pH, and electrolyte concentration. The 1,4-dioxane removal behavior was monitored by chemical oxygen demand (COD), and the results were compared with theoretical models for the electrochemical incineration of organic compounds. The removal efficiency of COD was shown to be greater than 95% in most cases, and no electrode fouling was observed during the reaction. Experimental degradation behavior agreed well with the theoretical models, implying that system variables can be predicted, even when the process is applied at pilot scale. Processes conducted at lower initial concentrations and higher temperatures yielded better energy consumption efficiency. Conditions of higher current density yielded faster degradation but need greater quantities of charge loading into the system. Therefore, a compromise between treatment time and energy consumption is required to achieve the desired efficiency. Meanwhile, pH and electrolyte concentrations did not affect reaction efficiency, suggesting that pH adjustment prior to wastewater treatment is not necessary. Thus, anodic oxidation of 1,4-dioxane by BDD electrodes promises to be both an economical and an efficient in wastewater treatment process. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/20381243/Anodic_oxidation_of_14_dioxane_on_boron_doped_diamond_electrodes_for_wastewater_treatment_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(10)00373-0 DB - PRIME DP - Unbound Medicine ER -