不同污水处理工艺中全氟和多氟烷基物质的来源、去除效率及生态风险

钟敏杰; 田艳; 黄宁; 吕博伟; 吴烈善; 王锦; 韦进进

引用本文:	钟敏杰,田艳,黄宁,吕博伟,吴烈善,王锦,韦进进.不同污水处理工艺中全氟和多氟烷基物质的来源、去除效率及生态风险[J].环境监控与预警,2024,(2):22-30
	ZHONG Minjie,TIAN Yan,HUANG Ning,LYU Bowei,WU Lieshan,WANG Jin,WEI Jinjin.Sources， Removal Efficiencies and Ecological Risks of Per and Polyfluoroalkyl Substances in Different Wastewater Treatment Processes[J].Environmental Monitoring and Forewarning,2024,(2):22-30

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不同污水处理工艺中全氟和多氟烷基物质的来源、去除效率及生态风险
钟敏杰¹，田艳^2,3，黄宁^2,3，吕博伟^2,3，吴烈善^1*，王锦^2,3，韦进进⁴
1. 广西大学，资源环境与材料学院，广西南宁 530004；2. 广西壮族自治区生态环境监测中心，广西南宁 530028；3.广西新污染物监测预警与环境健康评估重点实验室，广西南宁 530028； 4.南宁市核与辐射安全监督管理站，广西南宁 530015

摘要:

使用固相萃取-超高效液相色谱串联质谱法，测定广西3个污水处理厂（P1、P2、P3）中17种全氟和多氟烷基物质（PFASs）。结果显示，共检测出10种PFASs，检出率为33.3%～100%。进、出水中PFASs质量浓度分别为32.0～86.4和23.0～39.6 ng/L。全氟丁烷磺酸（PFBA）、全氟戊酸（PFPeA）和全氟辛酸（PFOA）是进、出水中的主要污染物。厌氧-缺氧-好氧（AAO）工艺对PFASs的去除率为49.0%；改良型序批反应器（MSBR）工艺对PFASs的去除率为72.2%，氧化沟工艺对PFASs的去除率为25.0%。P1和P3进水中的PFASs主要来源于生活污水，P2进水中的PFASs来源包括生活污水和工业废水。P1出水中的全氟十二烷酸（PFDoDA）对纳污河流的鱼类和水蚤构成高生态风险，对藻类构成中等生态风险，P2和P3出水对纳污河流构成的生态风险较低。

关键词: 全氟和多氟烷基物质去除效率污水处理工艺来源生态风险

DOI：DOI：10.3969/j.issn.1674-6732.2024.02.004

分类号:X824

基金项目:广西重点研发计划项目（AB21196039）

Sources， Removal Efficiencies and Ecological Risks of Per and Polyfluoroalkyl Substances in Different Wastewater Treatment Processes

ZHONG Minjie¹， TIAN Yan^2,3， HUANG Ning^2,3， LYU Bowei^2,3， WU Lieshan^1*， WANG Jin^2,3， WEI Jinjin⁴

1.School of Resources，Environment and Materials，Guangxi University，Nanning，Guangxi 530004，China；2.Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Center，Nanning，Guangxi 530028，China；3.Guangxi Key Laboratory of Emerging Contaminants Monitoring， Early Warning and Environmental Health Risk Assessment， Nanning， Guangxi 530028， China；4.Nanning Nuclear and Radiation Safety Supervision and Administration Station， Nanning， Guangxi 530015， China

Abstract:

Using solid phase extraction and ultra high performance liquid chromatography tandem mass spectrometry(SPE UPLC MS MS)， 17 per and polyfluoroalkyl substances(PFASs) were analyzed in wastewater from three wastewater treatment plants in Guangxi（P1、P2、P3）. The findings revealed 10 PFASs were detected with detection rates ranging from 33.3% to 100%. PFASs concentrations in influent and effluent ranged from 32.0 to 86.4 ng/L and 23.0 to 39.6 ng/L， respectively. Notably， perfluorobutanoic acid(PFBA)， perfluoropentanoic acid(PFPeA)， and perfluorooctanoic acid(PFOA) dominated the pollution profile. The anaerobic anoxic oxic(AAO) process exhibited a 49.0% removal efficiency， while the modified sequencing batch reactor(MSBR) achieved 72.2%， and the oxidation ditch process achieved 25.0%. Sewage was the main source of PFASs in influent of P1 and P3， but in influent of P2， the main sources of PFASs were sewage and industrial wastewater. Furthermore， PFDoDA in P1 effluent posed a high ecological risk to fish and water fleas， and a moderate risk to algae， while P2 and P3 effluents showed lower ecological risks to the receiving rivers.

Key words: PFASs Removal efficiencies Wastewater treatment processes Source Ecological risks