해양오염퇴적물 정화를 위한 산화공정에서 입자크기에 따른 중금속 제거 가능성

Abstract

In this study, heavy metals removal of marine sediments was investigated on the basis of particle size distribution using by washing technology in laboratory scale test. Contaminated marine sediments were collected at N area and were divided >63 ㎛, 63 μ㎛~32 ㎛ and > 32 ㎛ fraction. Above mentioned, each fraction of samples were mixed hydrogen peroxide(H2O2, 1, 3, 5 M) and non-ionic surfactant(Tween-80, 0.05 %). In this research reaction time was defined as 5, 10, 20, 30, 60, 90, 120 min. 1 M H2O2 condition was mainly focused in this research in order to achieve easy control of reaction and cost-effectiveness. Higher than 63㎛ fraction was good removal ratio that 4.43~38.91 %. However heavy metals of <63㎛ fraction were not removed at 1 M H2O2 condition. Therefore additional process for improve removal efficiency was considered. Keywords : Contaminated Marine Sediment (해양오염퇴적물), Heavy Metals Removal(중금속 제거), Particle Size(입자 크기), Remediation(정화)d >63 ㎛, 63 μ㎛~32 ㎛ and > 32 ㎛ fraction. Above mentioned, each fraction of samples were mixed hydrogen peroxide(H2O2, 1, 3, 5 M) and non-ionic surfactant(Tween-80, 0.05 %). In this research reaction time was defined as 5, 10, 20, 30, 60, 90, 120 min. 1 M H2O2 condition was mainly focused in this research in order to achieve easy control of reaction and cost-effectiveness. Higher than 63㎛ fraction was good removal ratio that 4.43~38.91 %. However heavy metals of <63㎛ fraction were not removed at 1 M H2O2 condition. Therefore additional process for improve removal efficiency was considered. Keywords : Contaminated Marine Sediment (해양오염퇴적물), Heavy Metals Removal(중금속 제거), Particle Size(입자 크기), Remediation(정화)