摘要
为提高臭氧的稳定性,采用臭氧化Hp-β-环糊精溶液的方法对臭氧进行包络。考察了臭氧/Hp-β-环糊精包络物的氧化特性,臭氧化量和Hp-β-环糊精浓度对臭氧/Hp-β-环糊精包络物氧化能力的影响,并研究了臭氧/Hp-β-环糊精包络物对二级出水中添加的10种药品和个人护理用品（PPCPs）的去除效果。结果表明：臭氧/Hp-β-环糊精包络物具有持续的氧化能力,增加臭氧化量或Hp-β-环糊精浓度可显著提升臭氧/Hp-β-环糊精包络物的氧化能力。臭氧/Hp-β-环糊精包络物有较强的氧化性;向0.7 g/L的Hp-β-环糊精溶液中通入6 mg臭氧后,PPCPs的去除率为50%~70%,去除率受PPCPs分子结构影响。臭氧/Hp-β-环糊精包络物氧化可与其他氧化技术联合应用于污染物去除或用作臭氧化后的持续氧化。
To improve the stability of aqueous ozone, Hp-β-cyclodextrin solution was ozonated to form ozone / Hp-β-cyclodextrin inclusion complex. The oxidizing characteristic of ozone / Hp-β-cyclodextrin inclusion complex,and the effect of applied ozone dose and various concentrations of Hp-β-cyclodextrin on the oxidizing ability of ozone / Hp-β-cyclodextrin inclusion complex were investigated. Removal efficiencies of 10 kinds of added pharmaceutical and personal care products（ PPCPs） in secondary effluent by ozone/Hp-β-cyclodextrin inclusion complex were also studied. The results showed that the oxidizing ability of ozone / Hp-β-cyclodextrin inclusion complex was sustainable,and the oxidizing ability improved significantly with the increasing applied ozone dose and the concentration of Hp-β-cyclodextrin solution. The removal rate of added PPCPs in secondary effluent was between 50% ~ 70% when adding 6 mg ozone to 0. 7 g / L of Hp-β-cyclodextrin solution. The removal rate of PPCPs was discussed in terms of molecular structure. Ozone / Hp-β-cyclodextrin inclusion complex could combine with other oxidation technologies for contaminants removal or a continuous oxidation process after ozonation.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第7期25-28,37,共5页
Environmental Engineering
基金
国家建设高水平大学公派研究生项目(201207000022)
教育部新世纪优秀人才支持计划项目(NCET-11-0710)
