污染土壤及地下构筑物的原地玻璃固化技术

In Situ Vitrification Technology for Contaminated Soil and Underground Structure

污染土壤和地下构筑物的原地玻璃固化(ISV)技术是美国太平洋西北实验室为能源部开发的一种原地整治技术。它具有对工作人员和公众安全,对废物有效减容,且玻璃固化产物长期耐久、强度高和浸出率低,费用较低等优点,适用于多种土壤(和废物)以及地下构筑物。经过台架尺度、工程尺度、中间试验尺度和大尺度试验之后,已用于被放射性核素、重金属以及有机和无机化学污染物污染场址的原地恢复和整治。研究证明,ISV是一种具有重大技术和经济潜力的原地整治技术,我国应尽早开展此领域的研究、开发和验证工作,以使此技术能在我国得以应用。

In situ vitrification （ISV） of contaminated soil and underground structure is one type of remediation technologies developed by Pacific Northwest Laboratory for the Department of Energy. It has the following benefits： safety for workers and public; effective volume reduction; long-term durability, high strength, and lower leaching rate of vitrification product; applicability to a variety of soils and underground structure; lower cost; etc. It has been used to remediate and restore some sites contaminated by radionuclides, heavy metals, and organic and inorganic chemical contaminants after the tests of bench scale, engineering scale, pilot scale, and larger scale. It is showed from the researches that ISV has significant technical and economic potential. Study, development and demonstration in the field should be conducted as early as possible in our country in order to use the technology for restoring contaminated site in our country.