Hydroxyl radical intensified Cu2O NPs/H2O2 process in ceramic membrane reactor for degradation on DMAc wastewater from polymeric membrane manufacturer
作者机构：State Key Laboratory of Materials Orented Chemical EngineeinNational Engineering Research Center for Specilized Separation MembranesNanjing Tech UniversityNanjing 21000China
出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)
年 卷 期：2020年第14卷第6期
页 面：123-134页
核心收录：
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学]
主 题：Ceramic membrane reactor AyV-dimethylacetamide Fenton process Cu20 Wastewater treatment
摘 要：High-concentration industrial wastewater containing N,N-dimethylacetamide(DMAc)from polymeric membrane manufacturer was degraded in Cu2O NPs/H2O2 *** the membrane assisted Fenton process DMAc removal rate was up to 98%with 120 min which was increased by 23%over the batch *** was found that:OH quench time was extended by 20 min and the maximum:0H productivity was notably 88.7%higher at 40 *** degradation reaction rate constant was enhanced by 2.2 times with membrane dispersion(k=0.0349 min^-1).DMAc initial concentration(C0)and H202 flux (Jp)had major influence on mass transfer and kinetics,meanwhile,membrane pore size(rp)and length(L)also affected the Treaction *** intensifed radical yield,fast mass transfer and nanoparticles high activity all contributed to improve pollutant degradation ***-resolved DMAC degradation pathway was analyzed as hydroxylation,demethylation and oxidation leading to the finai products of CO2;H20 and NO3^-(*** NH,from biodegradation).Continuous process was operated in the dual-membrane configuration with in situ reaction and *** five cycling,tests,DMAc removal was all above 95%for the initial[DMAc]0=14,000 mg/L in wastewater and stability of the catalyst and the membrane maintained weil.
维普期刊数据库