引用本文:龙姿,李巨峰,李斌莲,陈思媛,冉照宽等.基于VOCs浓度反演的地下水中含油物质泄漏原位在线监测方法的建立及应用[J].环境监控与预警,2022,14(4):53-59
LONG Zi, LI Ju-feng, LI Bin-lian, CHEN Si-yuan, RAN Zhao-kuanet al.Establishment and Application of In situ On line Monitoring Method for Oil Leakage in Groundwater Based on VOCs Concentration Inversion[J].Environmental Monitoring and Forewarning,2022,14(4):53-59
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基于VOCs浓度反演的地下水中含油物质泄漏原位在线监测方法的建立及应用
龙姿,李巨峰,李斌莲,陈思媛,冉照宽等1,2
1.中国石油集团安全环保技术研究院有限公司,北京 102206;2.石油石化污染物控制与处理国家重点实验室,北京 102206
摘要:
石油石化企业的含油物质泄漏进入地下水,会对生态环境造成负面影响。通过构建地下水井模型,比选不同原理的挥发性有机物(VOCs)检测传感器,建立了基于VOCs浓度反演的地下水中含油物质泄漏原位实时在线监测方法。研究发现,常规水质六参数传感器对含油物质泄漏的响应会产生滞后现象,在实时预警监测地下水井中含油物质时可不安装常规水质六参数传感器,节约企业污染防控监测成本。将该方法应用于企业现场进行原位实时监测,当实时监测值超过数据监控平台预警阈值时,系统会发出警报,实现了地下水井中含油物质泄漏实时预警监测。该监测方法具有响应速度快、准确性高、成本低、监测过程简单等优势,将帮助企业实时掌握地下水污染状况,提高地下水污染防控预警效率。
关键词:  地下水  含油物质  挥发性有机物  原位实时监测
DOI:
分类号:X832
基金项目:国家自然科学基金资助项目(2019YFC1806004);中国石油天然气股份有限公司直属院所基础科学研究和战略储备技术研究基金资助项目(2020D-5008)
Establishment and Application of In situ On line Monitoring Method for Oil Leakage in Groundwater Based on VOCs Concentration Inversion
LONG Zi, LI Ju-feng, LI Bin-lian, CHEN Si-yuan, RAN Zhao-kuanet al1,2
1. Research Institute of Safety and Environment Technology, China National Petroleum Corporation, Beijing 102206, China;2. State Key Laboratory of Petroleum Pollution Control, Beijing 102206, China
Abstract:
The leakage of oily substances from petroleum and petrochemical enterprises into groundwater will have a large negative impact on the ecological environment, and the national requirements for groundwater pollution prevention and management are increasingly severe. It is of great significance to develop an efficient method for monitoring the leakage of oily pollutants into groundwater. In this paper, by constructing a groundwater well model, designing and developing on line monitoring equipment for oil bearing pollutant leakage, in situ real time monitoring of the dynamic concentration of VOCs volatilized into gas from oil bearing pollutants in groundwater wells, it realizes in situ real time monitoring of oil bearing pollutant leakage in groundwater wells. Through this research, it is determined that the conventional water quality six parameter sensor has a delayed response to the leakage of oily substances, and it is not necessary to install conventional water quality parameter sensors in real time early warning and monitoring of oily substances in groundwater wells, which saves the cost of pollution prevention and control monitoring for enterprises. The online monitoring equipment is installed on the enterprise site for practical application. By setting the early warning threshold in the monitoring platform, the system will issue an alarm when the real time monitoring value exceeds the early warning threshold, realizing real time monitoring and early warning of the concentration of oily pollutants in groundwater wells. The monitoring method proposed in this study has the advantages of fast response, high accuracy, low cost and simple monitoring process. It will help enterprises to grasp the status of groundwater pollution in real time and improve the efficiency of groundwater pollution prevention and early warning.
Key words:  Groundwater  Oil bearing pollutants  VOCs  In situ real time monitoring