重金属污染物在土壤中迁移规律及修复技术研究

世界各国都认识到重金属污染的严重性.多数国家开展了污染场地的修复工作,研究和开发出多种土壤重金属污染修复技术,重金属污染土壤修复技术有物理化学修复技术、植物修复、微生物修复技术和电动修复技术.但这些土壤修复技术的成本高,只重视土壤修复,土壤修复技术更重要的部分是地下水系统的修复,不能忽视地下水系统与土壤修复的完整性,否则会造成二次环境污染.本文在分析土壤中重金属污染物迁移规律的同时提出完整的土壤修复新技术CH-PRB工艺.

Study on Migration Regularity and Repair Technology of Heavy Metal Pollutants in Soil

Countries all over the world recognize the seriousness of heavy metal pollution.Most countries have started to remediate the contaminated sites,research and develop a variety of heavy metal contaminated soil remediation technologies.Heavy metal contaminated soil remediation technologies have physical and chemical remediation technologies,phytoremediation,microbial remediation technologies and electric repair techniques.But the cost of these remediation technologies is quite high,and only pay attention to soil remediation rather than repair of groundwater system.The remediation of groundwater and soil system is an integrity,otherwise it will cause secondary pollution.Based on the analysis of migration rules of heavy metals in soil,this study proposed a complete new technology CH-PRB process.