摘要
采用热活化过硫酸盐(thermally activated persulfate, TAP)技术对含氮消毒副产物亚硝基二乙胺(N-nitrosodiethylamine, NDEA)进行降解.考察了反应时间、温度、初始pH值、过硫酸盐(persulfate, PS)投加量和NDEA初始质量浓度对降解效果的影响.结果表明,在反应时间为60 min、温度为60℃、初始pH值为3、PS投加量为2.0 mmol·L^(-1)、NDEA初始质量浓度为2.0 mg·L^(-1)时,NDEA的去除率达96.60%.热活化PS对NDEA的降解符合一级反应动力学.
N-nitrosodiethylamine(NDEA),a nitrogen-containing disinfection by-product, was degraded by thermally activated persulfate technology.The effects of reaction time, temperature, initial pH,persulfate(PS) dosage and initial mass concentration of NDEA on the degradation were investigated.The results showed that when the reaction time was 60 min, the temperature was 60 ℃,the initial pH was 3,the PS dosage was 2.0 mmol·L^(-1),the initial mass concentration of NDEA was 2.0 mmol·L^(-1),and the removal rate of NDEA reached 96.59%.The degradation of NDEA by thermally activated PS was consistent with the first-order reaction kinetics.
作者
丁春生
郑中弈
朱荣辉
宋欣泽
DING Chunsheng;ZHENG Zhongyi;ZHU Ronghui;SONG Xinze(College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310023,China)
出处
《福建师范大学学报（自然科学版）》
CAS
2023年第1期13-20,共8页
Journal of Fujian Normal University：Natural Science Edition
基金
浙江省自然科学基金资助项目(Y5110339)。
关键词
过硫酸盐
亚硝基二乙胺
降解
热活化
反应动力学
persulfate
NDEA
degradation
thermally activated persulfate
reaction kinetics
