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淄博市污水处理厂污泥中有机污染物赋存特征分析及生态风险评价
Occurrence Characteristics and Ecological Risk Assessment of Organic Pollutants in Sewage Sludge of Zibo City
投稿时间:2021-06-08  修订日期:2021-11-25
DOI:DOI:10.19316/j.issn.1002-6002.2022.04.16
中文关键词:  污泥  有机污染物  生态风险评价  风险商值法
英文关键词:sewage sludge  organic pollutants  ecological risk assessment  risk quotient
基金项目:淄博市重点研发计划(公益类专项)项目(2019gy010142)
作者单位
宋艳艳 山东省淄博生态环境监测中心, 山东 淄博 255040 
崔静 山东省淄博生态环境监测中心, 山东 淄博 255040 
姜雪松 山东省淄博生态环境监测中心, 山东 淄博 255040 
亓恒振 山东省淄博生态环境监测中心, 山东 淄博 255040 
边志明* 山东省淄博生态环境监测中心, 山东 淄博 255040 
通讯作者:边志明*  山东省淄博生态环境监测中心, 山东 淄博 255040  
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中文摘要:
      采用气相色谱质谱法对淄博市16家代表性污水处理厂污泥中有机污染物的赋存状况进行了分析研究,并运用风险商值(RQ)法对污泥中多环芳烃(PAHs)的生态风险进行了评价。结果表明,淄博市污水处理厂污泥中有机污染物的含量为1.35~35.89 mg/kg,平均值为11.48 mg/kg,不同有机污染物百分含量排序为邻苯二甲酸酯>苯酚类>卤代烃类>PAHs>硝基苯类>胺类>氯苯类>苯系物>硝基酚类=氯酚类>醚类。与其他地区相比,淄博市污水处理厂污泥中各类有机污染物的含量总体处于中低水平。此外,同一区县内的不同污水处理厂污泥中的有机污染物含量相近、种类及分布特征相似,不同区县间的有机污染物含量差异显著。风险评价结果显示,除极少数污水处理厂污泥中的萘、苊、芴、芘、苯并[b]荧蒽、总PAHs(∑PAHs)处于高风险水平外,淄博市污水处理厂污泥中的PAHs单体、∑PAHs总体处于中低风险水平。
英文摘要:
      The organic pollutants in sewage sludges from 16 representative sewage treatment plants of Zibo City were analyzed using GC-MS method,and the ecological risk of PAHs was assessed based on the risk quotient (RQ) methodology.The results showed that the total concentrations of organic pollutants in the samples were in the range of 1.35-35.89 mg/kg with an average value of 11.48 mg/kg.The order of the average concentrations of organic pollutants exhibited as:phthalic acid esters>phenolics>halogenated hydrocarbons>polycyclic aromatic hydrocarbons>nitroaromatics>amines>chlorobenzenes>BTEX>nitrophenols=chlorophenols>ethers.Compared with other regions,all kinds of organic pollutants in sewage treatment plants of Zibo City were generally at medium or low levels.In addition,the total amount,species and distribution characteristics of organic pollutants in the sewage treatment sludges from the same district were similar,and there was significant difference in organic pollutants among the different districts.The ecological risk assessment indicated that most of the individual PAHs and ∑PAHs showed middle or low level except that naphthalene,acenaphthene,fluorene,pyrene,benzo[b]fluoranthene,∑PAHs in few sludge samples had high risk level.
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