Abstract
A new soil washing technique is developed and its actual example of work is shown, which can clean up oil-contaminated soil by using micro-bubbles produced from self resolution of hydrogen peroxide in alkali solution. This method has ability that can extract 90%-99% oil from highly contaminated soil with heavy oil like fuel oil C. This method also has merits: One is that extracted oil can be collected at the surface of solution for recycling. The second is that the water can be reused in the remediation process as solution is easily treated. The third is application of bioremediation after the treatment may lead to an extreme level of remediation, as resin and asphalten components are to be extracted well.