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사후관리단계에 있는 매립지의 건식침적량 및 토양오염에 관한 연구 - 난지도 매립지 사례를 중심으로
이승묵(Seung Mook Yi),조경숙(Kyung Sook Cho),이은영(Eun Young Lee),김윤정(Yoon Jung Kim),박재우(Jae Woo Park),박석순(Seok Soon Park) 한국환경영향평가학회 1999 환경영향평가 Vol.8 No.2
Atmospheric dry deposition flux and ambient particle mass size distribution were measured to evaluate the impact of atmospheric deposition around the Nanjido landfill sites. Wind direction affects greatly on the variation of mass flux and mass size distribution and made two times higher when the wind was blown from the road side. The effect of Nanjido landfill on the mass size distribution was significant comparing to simultaneously measured mass size distribution at the other sampling site. The results showed that the particle diameter bigger than 10 μm explained the majority of atmospheric dry deposition flux. A survey was also carried out to investigate the contamination of soils in a completed Nanjido landfill. The chemical properties of the soil analyzed in the present study include pH, oxidation-reduction potential (ORP), anion and cation concentration, total organic carbon(TOC), and some-metal elements concentrations were analyzed. Microbial activity in the soils was also evaluated by measuring dehydrogenase activities. TOC in the soil contaminated with leachate was 467.0 μg/g-dry soil, and the TOC in the soil, where Nanjido landfill gases were emitted from, was 675 μg/g-dry soil. The highest microbial activity of 968.0∼2147 μg-TPF/g-dry soil/day was found in the soil spouting Nanjido landfill gases. Compared with those in the uncontaminated soil, the concentrations of Cr, Cu and Pb in the contaminated soil were higher.
매립지 침출수가 수환경에 미치는 영향에 관한 연구 - 난지도 매립지 사례를 중심으로 -
박석순(Seok Soon Park),박재우(Jae Woo Park),정미훈(Mi Hoon Jeong),이지미(Ji Mi Lee),조경숙(Kyung Sook Cho),이승묵(Seung Mook Yi) 한국환경영향평가학회 1999 환경영향평가 Vol.8 No.2
Until 1993, Nanji landfill has been the main solid waste treatment facility for Seoul, which is the capital of Korea. Since the landfill has not been properly lined, soil and ground water around the landfill has been contaminated. Due to the proximity, it has been speculated that the water quality of the Han River would have been also influenced by the leachate. In order to illuminate this, HELP model to estimate the quantity of the leachate from Nanji landfill and RMA model to simulate the change of water quality in Han River were applied in this research. The result indicates that the quantity of leachate from Nanji landfill has been overestimated by previous works arid it was due to the failure to consider the water storage capacity of the landfill. The effect from Nanji landfill leachate on the water quality, in terms of COD input, proves to be smaller than those from other tributaries and influents to the River and the effect is larger when the flow of the River is reversed due to the tide.