某在产石化企业土壤和地下水污染特征分析OA
Characteristics Analysis of Soil and Groundwater Pollutants in an Operating Petrochemical Enterprise
对某在产石化企业芳烃联合装置开展土壤和地下水污染调查,识别特征污染物,根据行业特点和在产企业调查限制,针对性地制定了调查方案,采集土壤和地下水样品.检测结果表明,土壤和地下水污染物为苯系物和石油烃,均为场地特征污染物.土壤污染物为挥发性有机物,超标深度主要在地下水位线附近;地下水超标污染物较多、分布范围广、超标倍数高,污染较重.初步判断是装置历史生产过程中泄漏导致地下水污染,地下水中污染物迁移扩散产生地下水污染羽,并在下游形成低密度非水相液体聚集;挥发性有机物自下而上挥发导致装置周边绿化带内土壤污染.石化在产企业由于安全管理和作业空间限制,建议类似在产企业调查中应重点关注包气带防污能力和地下水污染调查.
A soil and groundwater pollution investigation was conducted on an aromatics complex of a petrochemical enterprise,identifying characteristic pollutants.Based on industry characteristics and investigation limitations of the enterprise,a targeted investigation plan was developed to collect soil and groundwater samples.The detection results indicate that the pollutants in soil and groundwater are benzene series and petroleum hydrocarbons,both of which are characteristic pollutants of the site.The soil pollutants are volatile organic compounds,and the exceeding depth is mainly near the groundwater level.Groundwater has a large number of pollutants that exceed the standard,a wide distribution range,and a high multiple of exceeding the standard,resulting in severe pollution.The preliminary judgment is that the leakage during the historical production process of the device caused groundwater pollution,and the migration and diffusion of pollutants in groundwater generated groundwater pollution plumes,which formed low-density non-aqueous liquid accumulation downstream.Volatile organic compounds volatilize from bottom to top,causing soil pollution in the surrounding green belts of the device.Due to safety management and operational space restrictions in petrochemical enterprises in production,it is recommended that similar investigations in operating enterprises should focus on the protective capacity of the vadose zone against pollution and the investigation of groundwater pollution.
丁海;欧阳振宇;张德永;张珈晨;史翔宇
中国石油天然气股份有限公司炼油化工和新材料分公司青岛中油华东院安全环保有限公司青岛中油华东院安全环保有限公司青岛中油华东院安全环保有限公司青岛中油华东院安全环保有限公司
环境科学
在产石化地下水污染特征调查
operatingpetrochemicalgroundwaterpollution characteristicsinvestigation
《油气田环境保护》 2024 (6)
14-18,24,6
中国石油工程建设有限公司科学研究与技术开发项目(CPECC2024KJ14).
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