摘要
针对我国挥发性有机污染地块调查评估中存在的采样缺失、成本高及周期长等问题,选择华北地区某挥发性氯代烃污染地块为研究对象,采用现行调查方法与基于膜界面探针(MIP)系统快速调查技术联合使用的方式,现场完成场地钻探调查点位4个(土壤样品36个),MIP系统调查点位11个(验证点位4个),以研究MIP验证点位检测电信号值与其对应场地钻探点位的地层信息、实验室检测数据之间的相关性,以及使用MIP电信号值模拟地块地层和污染空间的分布特征。结果表明,MIP系统检测的土壤电导率电信号值(EC)能够更为详尽地表征地块的地层结构信息;在地块范围内的同一种土质中,MIP系统的专用卤素检测器电信号值(XSD)与实验室检测数据拟合度相对较高(R^(2)>0.99);MIP系统快速调查技术与现行调查方法联合使用能够快速且高效表征调查地块内VCHs的污染空间分布特征。本研究结果可为MIP系统快速调查技术在挥发性有机污染地块调查评估中的应用提供参考。
In view of the problems existing in the investigation and risk assessment of sites impacted by volatile organic compounds in China,such as lack of sampling,high cost and long term,a volatile chlorinated hydrocarbon contaminated site in the North of China was selected as the research object.The current survey method and the MIP system rapid survey technology were adopted in this study.4 site drilling survey points(36 soil samples)and 11 MIP system survey points(4 verification points)were completed on-site.The correlation between the detected electrical signal value of the MIP verification point and the stratum information and laboratory test data of the corresponding site drilling point was evaluated,and the MIP signal value was used to simulate the stratum of the block and the spatial distribution characteristics of pollution.The results showed that the electrical conductivity signal value(EC)of the soil detected by the MIP system can fully characterize the stratigraphic structure information of the site.In the same soil of the site,the fitting degree between the electrical signal value(XSD)of the halogen specific detector of MIP system and the laboratory test data was relatively high(R^(2)>0.99).The combination of MIP system rapid survey technology and current survey method could quickly and efficiently characterize the spatial distribution of VCHs in this VCHs site.The research results can provide the reference for the application of MIP system in the investigation and risk assessment of sites impacted by volatile organic compounds.
作者
李佳斌
王硕
代小丽
苟雅玲
张腾飞
王海见
郭鹏
魏文侠
冷文鹏
LI Jiabin;WANG Shuo;DAI Xiaoli;GOU Yalin;ZHANG Tengfei;WANG Haijian;GUO Peng;WEI Wenxia;LENG Wenpeng(Institute of Resources and Environment,Beijing Academy of Science and Technology(Beijing Key Laboratory of Remediation of Industrial Pollution Sites),Beijing 100089,China)
出处
《环境工程学报》
CAS
CSCD
北大核心
2022年第2期546-554,共9页
Chinese Journal of Environmental Engineering
基金
国家重点研发计划项目(2018YFCl801301)
北京市科学技术研究院北科萌芽项目(BGS202102)
北京市公益性科研院所改革与发展专项项目(2021G-12)。
关键词
MIP系统快速调查技术
现行调查方法
挥发性氯代烃污染地块
电导率电信号值
专用卤素检测器电信号值
空间分布特征
membrane interface probe(MIP)system rapid survey technology
current survey method
chlorinated organic compounds contaminated site
electrical conductivity signal value(EC)
halogen specific detector signal value(XSD)
spatial distribution characteristics
