title: Comparative study on electrochemical 4-chlorophenol degradation in different diaphragm systems with combined reduction and oxidation properties.
abstract: Two diaphragm electrolysis systems, two-electrode (anode-cathode) and three-electrode (cathode-anode-cathode), were compared for the electrochemical degradation of 4-chlorophenol. The performance of these systems was improved by feeding with hydrogen gas and then with air, in aid of the combined processes of reduction and oxidation. The 4-chlorophenol degradation, dechlorination, and total organic carbon removal were monitored to characterize the difference between the two systems. The results indicated that the three-electrode system exhibited higher degradation percentages for 4-chlorophenol compared with that of the two-electrode system. The dechlorination property of the three-electrode system was stronger than that of the two-electrode system. In addition, the total organic carbon removal percentage of the anodic compartment in the three-electrode system was higher than that of the two-electrode system. The three-electrode system showed excellent treatment properties for 4-chlorophenol.
authors.affiliation: College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China E-mail: wanghui@bjfu.edu.cn.
authors.forename: S L
authors.initials: SL
authors.lastname: Liu
authors.affiliation: College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China E-mail: wanghui@bjfu.edu.cn.
authors.forename: H
authors.initials: H
authors.lastname: Wang
authors.affiliation: College of Water Sciences, Beijing Normal University, Beijing 100875, China.
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Bian
mesh_terms: D002733:Chlorophenols / Q000737:chemistry*; D004566:Electrodes; D004572:Electrolysis; D005374:Filtration / Q000295:instrumentation*; D010084:Oxidation-Reduction; D014865:Waste Disposal, Fluid / Q000295:instrumentation; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D002733:Chlorophenols; D014874:Water Pollutants, Chemical; C029107:4-chlorophenol