SKK工法的土壤VOCs污染净化效果研究

Remediation of VOCs contaminated soil by SKK method

SWP工法是日本近年来成功发明的一种土木挖掘施工的高效扬水新工艺.采用这种工艺可获得比目前工艺高数倍～数十倍以上的扬水效率.通过对该工艺的技术解析和试验数据对比,阐述了该工艺独特的优异性能.在SWP工法的基础上,通过一些技术改进发展而成的SKK工法,可有效净化地层中受到VOCs和油类污染的土壤和地下水,解决了目前土壤气提法所遇到的无法净化饱和含水层污染土壤的技术难题.实地净化测试结果表明,经过SKK工法处理后的地下土壤和地下水,短期内即可完全达到国家要求的环境标准.

SWP method invented in Japan in recent years is a successful efficient new pumping technology for excavation project, and its pumping efficiency is several times higher than the current pumping methods. The unique performance of the SWP method is described by the technical analysis and data comparison. SKK method is based on the SWP method and some technical improve- ments, which can effectively purify the VOCs and oil contaminated soil, groundwater and soil gas, resolved the technical problems of Soil Stripping Method which can＇t purify the contaminated soil under water saturation level. Purification field test shows that using SKK method, contaminated soil and groundwater by VOCs and oil can be purified in short time, and can reach the requirements of the national environmental standards within a short period of time.