Common Used Remediation Technologies for Volatile and Semivolatile Organic Compounds Contaminated Soils and Their Application in US Superfund Sites

The US Superfund contaminated sites remediation practice shows that 84% of soil contamination is caused by volatile organic compounds (VOCs) or semivolatile organic compounds (SVOCs). The remediation technologies of VOCs/SVOCs-contaminated sites have been relatively mature and widely used in developed countries; in contrast, there are less cases of engineering remediation application in China due to that site remediation has just started in our country. In this paper，common organic contaminated soil remediation technologies in both China and abroad are introduced，with the focus on the principle of soil vapor extraction, soil flushing/washing, solidification/stabilization, thermal treatment/desorption and bioslurry systems. The efficiency, duration, cost and application of these technologies are compared, and current and future applications of these technologies are discussed. This review provides references and suggestions to the remediation of VOCs/SVOCs-contaminated sites in China and other developing countries.