Recent updates on electrochemical degradation of bio-refractory organic pollutants using BDD anode: a mini review.
Boron-doped diamond (BDD) is playing an important role in environmental electrochemistry and has been successfully applied to the degradation of various bio-refractory organic pollutants. However, the review concerning recent progress in this research area is still very limited. This mini-review updated recent advances on the removal of three kinds of bio-refractory wastewaters including pharmaceuticals, pesticides, and dyes using BDD electrode. It summarized the important parameters in three electrochemical oxidation processes, i.e., anodic oxidation (AO), electro-Fenton (EF), and photoelectro-Fenton (PEF) and compared their different degradation mechanisms and behaviors. As an attractive improvement of PEF, solar photoelectro-Fenton using sunlight as UV/vis source presented cost-effectiveness, in which the energy consumption for enrofloxacin removal was 0.246 kWh/(g TOC), which was much lower than that of 0.743 and 0.467 kWh/(g TOC) by AO and EF under similar conditions. Finally the existing problems and future prospects in research were suggested.
Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China.
Xinmin
X
Yu
Minghua
M
Zhou
Youshuang
Y
Hu
K
K
Groenen Serrano
Fangke
F
Yu
D001895:Boron / Q000737:chemistry; D004396:Coloring Agents / Q000737:chemistry / Q000528:radiation effects; D018130:Diamond / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D007501:Iron / Q000737:chemistry; D010575:Pesticides / Q000737:chemistry / Q000528:radiation effects; D004364:Pharmaceutical Preparations / Q000737:chemistry / Q000528:radiation effects; D013472:Sunlight; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000528:radiation effects*
D004396:Coloring Agents; D010575:Pesticides; D004364:Pharmaceutical Preparations; D014874:Water Pollutants, Chemical; D018130:Diamond; D007501:Iron; D001895:Boron