[1]徐彬焜,余韵,潘志刚,等.紫外活化过硫酸盐工艺降解二苯甲酮-3效果研究[J].中国给水排水,2020,36(23):69-74.
　XU Bin-kun,YU Yun,PAN Zhi-gang,et al.Degradation of Benzophenone-3 by UV-activated Persulfate Process[J].China Water & Wastewater,2020,36(23):69-74.
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紫外活化过硫酸盐工艺降解二苯甲酮-3效果研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第23期 页码: 69-74 栏目: 出版日期: 2020-12-01
Title:
Degradation of Benzophenone-3 by UV-activated Persulfate Process
作者:
徐彬焜1，余韵1，潘志刚2，王勇2，彭明国1，杜尔登1，沈一君1，郑璐1
(1.常州大学环境与安全工程学院，江苏常州213164；2.江苏联发环保新能源有限公司，江苏南通226600)
Author(s):
XU Bin-kun1，YU Yun1，PAN Zhi-gang2，WANG Yong2，PENG Ming-guo1，DU Er-deng1，SHEN Yi-jun1，ZHENG Lu1
(1. School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China; 2. Jiangsu Lianfa Environmental Protection New Energy Co. Ltd., Nantong 226600, China)
关键词:
UV/PS工艺; 有机防晒剂; 二苯甲酮-3; 动力学; 风险评价
Keywords:
UV/PS; organic sunscreen; benzophenone-3; kinetics; risk assessment
摘要:
采用紫外（UV）活化过硫酸盐（PS）高级氧化工艺降解水中典型二苯甲酮类有机防晒剂（BP-3），考察和评估各因素对BP-3去除率的影响。结果表明，UV/PS工艺对BP-3有良好的去除效果，BP-3去除率随着BP-3初始浓度的增加而减小，随着PS投加量的增加而增大。酸性条件下UV/PS工艺对BP-3的去除效果明显优于碱性条件，反应体系中Cl-、NO3-、HCO3-、SO42-等无机离子均能够抑制BP-3的降解，其中HCO3-的抑制效果最明显。基于HPLC-MS/MS高分辨质谱解析出7种中间产物，并提出可能的降解路径。生物毒性实验表明，在UV/PS工艺降解BP-3过程中，其毒性并未完全去除，对生态环境构成潜在威胁。
Abstract:
Typical organic sunscreen benzophenone-3 (BP-3) in water was degraded by UV-activated persulfate advanced oxidation process, and effects of various factors on removal of BP-3 were investigated and evaluated. The results showed that UV/PS could effectively remove BP-3.The removal efficiency of BP-3 decreased with the increase of BP-3 initial concentration, while it increased with the increase of PS dosage. BP-3 removal efficiency was higher in acidic condition than that in alkaline condition. The presence of Cl-, NO3-, HCO3- and SO42-in aqueous solution had inhibitory effects on BP-3 degradation. Among them, the inhibitory effect of HCO3- was the most obvious. Seven intermediates were identified by HPLC-MS/MS, and the degradation pathway was proposed. Biological toxicity experiment showed that the BP-3 toxicity was not completely removed during degradation of BP-3 by UV/PS process, which indicated that it still had a potential threat to the ecological environment.
更新日期/Last Update: 2020-12-01