电-多相臭氧催化技术处理金刚烷胺制药废水

采用电-多相臭氧催化（E-catazone）技术处理高COD、高含盐、难生化的金刚烷胺制药废水.对比研究电-多相臭氧催化、多相臭氧催化（Catazone）、电催化氧化（EO）对金刚烷胺制药废水的处理效果，在此基础上进一步研究了电流密度、pH值以及气相O₃浓度对电-多相臭氧催化技术处理效果的影响，同时优化实验条件.实验结果表明，在原水pH值为12.5，电流密度为15mA/cm²，O₃进气流速0.4L/min，O₃浓度为60mg/L的条件下，经过60min反应，电-多相臭氧催化技术获得了62%的COD去除和44%的总有机碳（TOC）去除，其效果显著优于多相臭氧催化（COD 44%，TOC 29%）与电催化氧化（COD 13%，TOC 17%）；同时，电-多相臭氧催化不仅氧化能力强，而且氧化速率快，获得的伪一级COD去除速率常数k是多相臭氧催化和电催化氧化的1.81倍和8.22倍，更为重要的是，电-多相臭氧催化技术还可以高效、快速地提高废水的生化性，提高约2个数量级，结果表明，电-多相臭氧催化技术是一种有潜力的高级氧化技术，可以实现高效、快速去除有机污染物以及提高废水的可生化性.

Study on electrochemical heterogeneous catalytic ozonation process for treatment of amantadine pharmaceutical wastewater

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.