某焦化厂污染场地环境损害评估案例研究

发布时间：2018-06-08 22:45

本文选题：土壤和地下水污染 + 等值分析　；参考：《中国环境科学》2016年10期

【摘要】：以某大型焦化厂土壤和地下水多环芳烃、苯污染损害评估为例,采用资源等值分析法分别开展场地土壤和地下水污染环境损害评估,并对评估结果的不确定性进行分析.结果表明,损害评估的数额(27.1亿元)与实际污染修复成本(20.5亿元)具有较大差异,损害评估额明显大于污染治理修复成本;社会贴现率的取值(1%~5%)选择对土壤污染损害评估结果影响最大,污染含水层厚度(3m~9m)、含水层孔隙度(0.25~0.35)、社会贴现率(1%~5%)和单位地下水修复成本(4000~5000元/m~2)等因子对地下水污染环境损害评估的结果影响较大.资源等值分析的方法作为评估工业场地土壤和地下水污染理论和技术上较为可行,但需要精细化的立法和明确的技术导则来规范损害评估的内容、程序和方法.
[Abstract]:Taking soil and groundwater polycyclic aromatic hydrocarbons (PAHs) and benzene pollution damage assessment of a large coking plant as an example, the environmental damage assessment of site soil and groundwater pollution was carried out by means of resource equivalence analysis method, and the uncertainty of the assessment results was analyzed. The results showed that the amount of damage assessment (2.71 billion yuan) was significantly different from the actual cost of pollution remediation (2.05 billion yuan), and the amount of damage assessment was obviously larger than the cost of pollution control and remediation. The selection of the social discount rate has the greatest impact on the assessment results of soil pollution damage. Factors such as the thickness of the polluted aquifer, the porosity of the aquifer, the social discount rate and the recovery cost per unit of groundwater, such as the thickness of the contaminated aquifer, the thickness of the aquifer, the porosity of the aquifer, the social discount rate and the cost per unit of groundwater remediation, are significant in the assessment of environmental damage to groundwater pollution. The method of resource equivalence analysis is feasible in theory and technology for assessing soil and groundwater pollution in industrial sites, but it needs fine legislation and clear technical guidelines to standardize the contents, procedures and methods of damage assessment.
【作者单位】：环境保护部环境规划院环境工程部;清华大学环境学院;
【基金】：国家自然科学青年基金项目(71403097) 国家高技术研究发展计划(863)项目(2013AA06A211) 国家水体污染控制与治理科技重大专项(2013ZX07602-002)
【分类号】：X82

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