마이크로이멀젼을 이용한 유기오염물로 오염된 지반의 정화

The purpose of this research is to evaluate the effect of microemulsion on the remediation of soil contaminated with organic materials. The laboratory tests were conducted to confirm the ability of microemulsion as remediation agent and compare remediation efficiency in microemulsion process with soil washing. In the test, pyrene was used as organic contaminant and alkylpolyethoxylates(C$_4$E$_1$) was used as surfactant. Microemulsion in the $C_4$E$_1$-water-decane mixture was formed in the range of 22 and 48$_{o}$ C at surfactant contents V=55%. Extraction was completed within 30 min and about 90% pyrene was removed. Seperation of pyrene with oil phase lowering temperature was sufficient for application in a multistep process.s.