분 류

학회논문집 논문

서 명

Slow Sorption of Hydrophobic Oragnic Contaminants in Natural Soils

저 자

Shin, Won Sik·Park, Taehyo·Ahn, Taebong·Chun, Hee Dong

페이지

pp.130∼114

초 록

Sorption studies were conducted to determine if slow sorption fraction is observed in recently deposited organic matter by studying wetland soils explicitly. Sorption characteristics of hydrophobic organic compounds (chlorobenzene and phenanthrene) in recently deposited freshwater marsh soils were determined using a batch sorption procedure. Relative indicators of organic matter age were assessed using several techniques including the ratio of elemental oxygen to carbon in the organic matter. Slow sorption characteristics for both surface marsh soil (top 0-2cm,<5years old) and deeper marsh soil (below 10-cm,>20years old) were compared against relatively older PPI (Petro Processors, Inc. Superfund site) and BM (Bayou Manchac) soils to investigate whether soil age can cause differences in sorption of organic compounds in wetland soils. Increases in sorption non-linearity of slow sorption model parameters (increase in KF and decrease in N) explain the existence of slow sorption fraction. The results of slow sorption model indicates the presence of a sizable slow sorption fraction; 25.4-26.3% (chlorobenzene) and 1.4-1.9% (phenanthrene) of the sorbed mass in wetland soils and 40.0-55.93% (chlorobenzene) and 2.9-3.19% (phenanthrene) of the sorbed mass in PPI and BM soils, respectively. The slow sorption fraction increased in the order of surface < deeper < PPI < BM soil indicating that size of the slow sorption fraction increases with soil organic matter age.

주제어

Risk assessment, Slow sorption, Wetlands, Peat, Aging, Sequestration, Elemental ratio

목 차

pp.5

율촌 복합화력발전소 공내 재하 시험, 이용길·박경호

pp.15

고형화 폐기물의 안정적 처분과 재활용을 위한 환경위해성 평가 체계의 연구, 박주양

pp.23

영동지역 유기질토의 공학적 특성에 관한 연구, 박흥규·구제민

pp.31

규조류의 크기와 여재의 유효경이 여과지 폐색에 미치는 영향, 전항배·이영주·이병두·안창진

pp.37

단열조사 및 물리검층을 통한 지표 하 단열특성 해석, 채병곤·이대하·김유성·황세호·기원서·김원영·이승구

pp.57

비정상침투에 의한 증축제체의 침투거동과 안정성, 신방웅·배우석·이종규·강종범

pp.67

마이크로 복합실리키 그라우트재의 공학적 특성에 관한 연구, 천병식·김진춘·최영철·정종주·윤남식·신상재

pp.81

해수로 안한 흙-벤토나이트 혼합물의 투수계수 변화가 해수유입에 미치는 영향, 안태봉

pp.91

생석회 말뚝에 의한 연약지반의 개량 효과, 천병식·고갑수

pp.103

자연토양에서의 소수성 유기오염물의 느린 흡착, 신원식·박대효·안태봉·천희동