[1]徐垚,陈家斌,刘统才,等.污水过氧乙酸/紫外消毒中试研究[J].中国给水排水,2023,39(7):23-28.
　XUYao,CHENJia-bin,LIUTong-cai,et al.Pilot Study on Peracetic Acid/Ultraviolet Disinfection of Sewage[J].China Water & Wastewater,2023,39(7):23-28.
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污水过氧乙酸/紫外消毒中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第7期 页码: 23-28 栏目: 出版日期: 2023-04-01
Title:
Pilot Study on Peracetic Acid/Ultraviolet Disinfection of Sewage
作者:
徐垚， 陈家斌， 刘统才， 纪睿成， 张亚雷， 周雪飞
（同济大学环境科学与工程学院 污染控制与资源化研究国家重点实验室，上海 200092）
Author(s):
XU　Yao， CHEN　Jia-bin， LIU　Tong-cai， JI　Rui-cheng， ZHANG　Ya-lei， ZHOU　Xue-fei
（State Key Laboratory of Pollution Control and Resource Reuse， College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China）
关键词:
过氧乙酸;  紫外线;  污水消毒;  总大肠菌群;  大肠埃希氏菌;  消毒副产物
Keywords:
peracetic acid;  ultraviolet;  sewage disinfection;  total coliform;  Escherichia coli;  disinfection by-products
摘要:
首次采用过氧乙酸/紫外（PAA/UV）组合工艺对我国城镇污水处理厂出水进行消毒中试研究，考察了不同PAA和UV投加剂量组合的消毒效率，及其对出水水质、消毒副产物生成的影响。结果表明，与单独PAA及UV消毒相比，PAA/UV组合工艺对总大肠菌群的消毒效率更高。当PAA投加量为4 mg/L、接触时间为5 min，UV剂量为20 J/cm2、接触时间为30 s时，PAA/UV工艺对总大肠菌群的对数灭活率可达到4.58?lg，而单一PAA和UV消毒时分别仅为1.53?lg和2.15?lg；在上述工况下，PAA/UV联合消毒对出水NH3-N、COD和TOC浓度的影响较小，且大肠埃希氏菌未检出，满足《城市污水再生利用 城市杂用水水质》（GB/T 18920—2020）要求。此外，与传统NaClO消毒工艺相比，PAA/UV工艺不会产生三卤甲烷（THMs）及卤乙酸（HAAs）等消毒副产物。
Abstract:
This paper used a pilot-scale peracetic acid and ultraviolet (PAA/UV) combined process to disinfect effluent from municipal wastewater treatment plants for the first time, and investigated the disinfection efficiency of different dosage combinations of PAA and UV and their effects on effluent quality and the generation of disinfection by-products. Compared with single PAA and UV disinfection, PAA/UV process was more efficient for total coliform disinfection. When PAA dosage was 4 mg/L and its contact time was 5 min, UV dose was 20 J/cm2 and its contact time was 30 s, the logarithmic removal rate of total coliform reached 4.58-lg, while that was only 1.53-lg and 2.15-lg respectively by the single PAA and UV disinfection. Under the above conditions, PAA/UV disinfection had little influence on NH3-N, COD and TOC in the effluent, and Escherichia coli was not detected, which met the requirements specified in The Reuse of Urban Recycling Water—Water Quality Standard for Urban Miscellaneous Use (GB/T 18920-2020). In addition, compared with the traditional NaClO disinfection process, PAA/UV process did not produce disinfection by-products such as trihalomethanes and haloacetic acid.

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[1]郑松超,张彦平,李添添,等.紫外协同零价铁活化过硫酸盐调理污泥脱水研究[J].中国给水排水,2023,39(11):15.
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更新日期/Last Update: 2023-04-01