模拟太阳光活化过一硫酸盐降解有机污染物的效能研究  

Efficiency of Organic Pollutants Degradation in Simulated Solar Activated Peroxymonosulfate System

作　　者：严凯 赵恒 蹇薪持 谈超群 Yan Kai;Zhao Heng;Jian Xinchi;Tan Chaoqun(Jiangsu Environmental Industry Co.,Ltd.,Nanjing 210000;School of Civl Engineering Southeast University,Nanjing 210000,China)

机构地区：[1]江苏环保产业股份有限公司,江苏南京210000 [2]东南大学土木工程学院,江苏南京210000

出　　处：《广东化工》2022年第3期135-139,142,共6页Guangdong Chemical Industry

基　　金：国家自然科学基金(52070041);江苏省自然科学基金(BK20211175)。

摘　　要：通过模拟太阳光(Solar)活化过氧单硫酸氢钾(PMS)产生活性因子,研究了系统对阿司匹林(ASA)、氟尼辛葡甲胺(FMME)、硝基苯(NB)和苯甲酸(BA)的去除效果与机制。结果表明:Solar/PMS系统中,四种药物的降解效能良好;投加阴离子HCO_(3)^(-)和Cl^(-)后,Solar/PMS系统对污染物的去除率分别下降为14.6%~23.5%和0.4%~10.3%;醇类淬灭实验表明系统中生成了两种主要的活性因子·OH和SO_(4)^(·-),·OH对ASA和FMME的降解贡献率分别为29.4%~32.1%和40.6%~49.1%,而SO_(4)^(·-)分别为42.4%~60.2%和49.5%~56.3%,起主要作用;经济性分析表明,降解ASA、FMME、NB和BA的最小EE/O_(total)为72.0~110 kWhm^(-3)order^(-1),对应最佳PMS投量为0.36~0.68 mM;研究表明Solar/PMS具有较好的有机污染物降解效能和经济价值,在未来具有一定的应用前景。The effectiveness and mechanism of degradation of aspirin(ASA)and flunixin glucosamine(FMME),nitrobenzene(NB)and benzoic acid(BA)were investigated by simulated solar irradiation to activate peroxymonosulfate(PMS).The results showed that the removals of the four pollutants were significantly enhanced in the Solar/PMS system;with the addition of coexisting anions HCO_(3)^(-) and Cl^(-),the removals decreased by 14.6%~23.5%and 0.4%~10.3%,respectively;alcohol quenching experiments showed that two major reactive factors,·OH and SO_(4)^(·-),were generated in the Solar/PMS system.At 3 pHs,contributions of·OH to ASA and FMME were 29.4%~32.1%and 40.6%~49.1%,respectively,while those of SO_(4)^(·-) were 42.4%~60.2%and 49.5%~56.3%,respectively;the economic analysis showed that the minimum energy consumptions(EE/O_(total)) for degrading ASA,FMME,NB and BA were 72.0~110 kWhm^(-3)order^(-1),and the corresponding optimal PMS dosages were 0.36~0.68 mM;the study indicated that Solar/PMS system has high degradation efficiency on organic pollutants and low economic costs,which has considerable prospects for future applications.

关 键 词：非甾体抗炎药 模拟太阳光 光化学氧化 竞争动力学 经济性分析 

分 类 号：TU991[建筑科学—市政工程]