发扬地学学科优势, 形成具有国土资源部门特色的土壤修复理论与技术体系

    Exploit full advantage of geosciences to form the characteristic theoretical and technological system of heavy metal-polluted soil remediation

    • 摘要: 岩石圈是土壤重金属元素的根本来源,是其迁移转化和生物-地球化学循环的场所,也是重金属元素的最后归宿,因此地质学、岩石学、矿物学和地球化学在重金属污染土壤修复中具有基础性的重要指导意义。国土资源部门已经在土壤重金属调查、溯源和风险评价上发挥了重要作用,还可以在探索研究灾害链的组成、影响因素和阻断途径的基础上,形成有地学特色的修复理论和技术。目前,国土资源部门的修复理论研究成果主要集中在缓变型地球化学灾害理论和地球化学工程学方面,在所属研究机构已经形成了若干种土壤修复剂,通过小试、中试和典型示范,验证了这些修复剂具有优异的修复性能与效果,是落实“土十条”和生态文明建设的一支重要力量。

       

      Abstract: The lithosphere is the source and also the fatal destination of soil heavy metals. In the lithosphere soil heavy metals migrate, transform and take part in bio-geochemical circles. Hence the principles of geology, petrology, mineralogy and geochemistry play an extremely important role in the remediation of heavy metal contaminated soil. These principles are important in soil pollution investigation, risk assessment, exploration of the compositions of disaster chain and their influential factors, and blocking the way of the disaster, thus forming the geological characteristics of soil remediation. Great achievements in theory of delayed geochemical hazard and geochemical engineering technologies, including several soil remediation agents and some other methodologies, have been obtained. Different scale tests have proved that they are economically and technologically applicable for heavy metal polluted soil remediation.

       

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