摘要
纳米TiO2光催化臭氧化技术具有氧化能力强、无选择性和无二次污染等优点,被广泛用于高浓度、难降解和有毒有害的有机废水处理,并取得了显著的效果。介绍了O3/UV/TiO2法的氧化反应机理,综述了O3/UV/TiO2工艺在印染废水、造纸废水、农药废水、制药废水、含酚废水、垃圾渗滤液处理中的应用研究进展。指出了处理不同的废水体系,O3与TiO2的合适比例是至关重要的,对水体pH的影响也较为敏感。
Nano-TiO2 photo-catalyzed ozonation process exhibits advantages of strong oxidation capacity,non-selectivity and no secondary contamination,which has been widely used in the treatment of high-concentration,biorefractory,toxic and harmful organic wastewater.This review presented the mechanisms of O3/UV/TiO2,and summarized the application advances of O3/UV/TiO2 process in the treatment of printing and dyeing wastewater,papermaking wastewater,pesticide wastewater,pharmaceutical wastewater and landfill leachate.It is indicated that the control of suitable O3 to TiO2 ratio for different wastewater systems is crucial for the degradation of organics,and it is more sensitive to the pH of wastewater.
出处
《环境工程》
CAS
CSCD
北大核心
2014年第S1期125-129,共5页
Environmental Engineering
基金
重庆市国土房管局重大科技攻关项目(CQGT-KJ-2012-6)
重庆市科委应用开发科技项目(cstc2013yykfA20002)
