Discussion of problems in the process of large-scale contaminate sites remediation and project practice
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摘要: 近年来,随着城市化进程的加快,城市遗留的大型污染场地土壤和地下水污染问题尤为突出,开发再利用过程中的环境与人体健康风险较高。大型污染场地具有分布范围广、占地面积大、污染情况复杂等特点,开发再利用过程中面临着重修复轻调查、修复技术类型单一、二次污染防控难度大等问题,在大型场地开发再利用问题分析的基础上,提出了基于绿色可持续修复理念的相应对策。以北京焦化厂为例,介绍了该场地在修复和开发再利用过程中通过开展场地补充调查、采用多技术集成修复、加强二次污染防控和建立公众参与机制等方面,开展绿色可持续修复的实践。Abstract: In recent years, with the rapid development of urbanization process, the problems of soil and groundwater pollution in large-scale polluted sites abandoned by the city were particularly prominent, and the environmental and human health risks in filed redevelopment process were high. The characteristics of large-scale contaminated sites, such as wide distribution, large area and complex pollution, as well as the problems faced in the process of redevelopment, such as emphasis on remediation than investigation, single type of remediation technologies, and difficulty in secondary pollution prevention and control were discussed. On this basis, the corresponding countermeasures were also proposed based on the concept of green sustainable remediation. Besides, the practical experience of implementing the concept of green sustainable remediation in the process of remediation and redevelopment of Beijing Coking Plant site was introduced, including conducting additional site investigations, adopting integrated remediation technologies, strengthening secondary pollution prevention and control, and establishing public participation mechanisms, etc.
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