Study on electrochemical heterogeneous catalytic ozonation process for treatment of amantadine pharmaceutical wastewater
MA Fu-jun1, LI Xin-yang1, ZONG Bo-yang2, YU Xiao-hua1, SUN Shao-bin1, YAO Hong1
1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China;
2. College of Environmental Science and Engineering, Tongji University, Shanghai 314051, China
Electrochemical heterogeneous catalytic ozonation (E-catazone) process was studied for treating amantadine wastewater, which was of high COD, high salinity and nonbiodegradable. The amantadine removal efficiency of E-catazone process was compared with catalytic ozonation (Catazone) and electrochemical oxidation (EO) processes, Besides, the effects of current density, pH and ozone concentration on the amahadine treatment efficiency were further investigated to obtain optimized experimental conditions. Electro-catalytic ozonation obtained 62% of the COD removal efficiency and 44% removal of TOC under pH 12.5, current density 15mA/cm2, O3 flow rate 0.4L/min and O3 concentration 60mg/L, The performance was significantly better than that of Catazone (COD 44%, TOC 29%) and EO (COD 13%, TOC 17%), E-catazone process demonstrated strong oxidizing power and fast oxidation rate, and the pseudo-first order of COD removal rate constant k was 1.81times and 8.22times of Catazone and EO, More importantly, the E-catazone could improve the biochemical properties of wastewater efficiently and rapidly, and increased by about two order of magnitude. The results showed that the E-catazone was a potential advanced oxidation technology, which could realize high efficiency, fast removal of organic pollutants and improve the biodegradability of wastewater.
马富军, 李新洋, 宗博洋, 于晓华, 孙绍斌, 姚宏. 电-多相臭氧催化技术处理金刚烷胺制药废水[J]. 中国环境科学, 2018, 38(10): 3713-3719.
MA Fu-jun, LI Xin-yang, ZONG Bo-yang, YU Xiao-hua, SUN Shao-bin, YAO Hong. Study on electrochemical heterogeneous catalytic ozonation process for treatment of amantadine pharmaceutical wastewater. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(10): 3713-3719.
Bobu M, Yediler A, Siminiceanu I, et al, Comparison of different advanced oxidation processes for the degradation of two fluoroquinolone antibiotics in aqueous solutions, Journal of environmental science and health[J]. Part A, Toxic/hazardous substances & environmental engineering, 2002,36(4):1034-1042.
Wang Y J, Li X Y, Zhen L M, et al. Electro-Fenton treatment of concentrates generated in nanofiltration of biologically pretreated landfill leachate[J]. Journal of Hazardous Materials, 2012,115(3):229-230.
Li X Y, Liu G C, Shi M, et al, A novel electro-catalytic ozonation process for treating Rhodamine B using mesoflower-structured TiO2-coated porous titanium gas diffuser anode[J]. Water Science and Technology, 2016,165(1):154-159.
Li X Y, Sun S B, Zhang X, et al,Combined electro-catazone/electro-peroxone process for rapid and effective Rhodamine B degradation[J]. Separation and Purification Technology, 2017,178:189-192.
[12]
Li X Y, Liu G C, Shi M, et al. Using TiO2 Mesoflower Interlayer in Tubular Porous Titanium Membranes for Enhanced Electrocatalytic Filtratio[J]. Electrochimica Acta, 2016,218:318-324.
[13]
Chemlal R, Azzouz L, Kernani R, et al. Combination of advanced oxidation and biological processes for the landfill leachate treatment[J]. Ecological Engineering, 2014,73:281-289.
Wang H J, Yuan S, Zhan J H, et al. Mechanisms of enhanced total organic carbon elimination from oxalic acid solutions by electro-peroxone process[J]. Water Research, 2015,80:20-29.
[16]
Komtchou S, Dirany A, Drogui P, et al, Removal of atrazine and its by-products from water using electrochemical advanced oxidation processes[J]. Water Research, 2017,125:91-103.
[17]
Oulego P, Collado S, Laca A, et al. Impact of leachate composition on the advanced oxidation treatment[J]. Water Research, 2016,88:389-402.
[18]
Li X Y, Zhu W, Wang C G, et al. The electrochemical oxidation of biologically treated citric acid wastewater in a continuous-flow three-dimensional electrode reactor (CTDER)[J]. Chemical Engineering Journal, 2013,232(10):495-502.
[19]
Kishimoto N, Sugimura E, Feasibility of an electrochemically assisted Fenton method using Fe2+/HOCl system as an advanced oxidation process[J]. Water Science and Technology, 2010,62(10):2321-2329.
[20]
Yao W K, Wang X F, Yang H G, et al, Removal of pharmaceuticals from secondary effluents by an electroperoxone process[J]. Water Research 2015,88:826-83.
