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포천 관인취수장 수원에 대한 수리지질 및 수리지구화학적 평가
신복수 ( Bok Su Shin ),고동찬 ( Dong-chan Koh ),장윤영 ( Yoon-young Chang ) 한국환경영향평가학회 2016 환경영향평가 Vol.25 No.3
관인취수장의 취수원은 하천기준으로 관련규정에 따라 취수지점으로부터 한탄강 상류 2.6km를 상수원보호구역으로 설정하여 각종 행위를 제한하고 있다. 그러나 관인취수장의 취수원이 하천수가 아닌지하수를 취수하고 있으므로 현재 설정된 상수원보호구역과 상류의 각종 행위제한구역을 변경하여야 한다는 주장이 지속적으로 제기되었다. 이 연구에서는 이러한 주장을 검증하기 위해 수리지질 및 수리지구화학조사를 실시하여 관인취수장의 취수원과 오염물질 유입특성을 평가했다. 관인취수장의 주변 지역은 화강암을 기반암으로 하여 상부에 총 4매의 제4기 현무암이 약 50m 두께로 충진 되어 있음을 확인하였다. 현무암 하부층은 낮은 비저항이고 화강암은 높은 비저항을 보여 현무암 하부층에 투수성 대수층이 존재하고 있는 것으로 보인다. 관인 취수장 유출량을 고려할 때 함양지역 면적은 최소 5.7km2로 산정되었으며, 철원평야 일원에서 함양된 지하수가 대수층을 따라 흐르다 취수장 인근의 현무암과 화강암 부정합면을 따라 용출되는 것으로 추정되었다. 수리지구화학 조사 결과 관인취수장 용천수는 현무암대수층 지하수와 유사하고, SiO2, Mg, NO3, SO4를 포함하는 주요 용존 화학성분의 시기적 농도 변동도 취수장 용천수는 현무암대수층에서 유래되었음이 밝혀졌다. 결론적으로 수리지질학적 및 수리지구화학적 특성으로 볼때 관인취수장 용천수는 하천수나 저수지수는 아니고 현무암대수층 지하수와 동일한 것으로 추정되었다. The section from water source to 2.6km upper stream of Hantan River is protected as the drinking water quality protection area according to guidelines of Ministry of Environment, because water source of the Gwanin water intake plant has been known the river. However, opinions were consistently brought up that the standard of water source protection zone must be changed with using underground water as water source because of contribution possibility of underground water as the water source of Gwanin water intake facility. In this regard, hydrogeologic investigation including resistivity survey and hydrogeochemical investigation were carried out to assess water source and infiltration of contaminant for the plant. Quaternary basaltic rocks (50m thick with four layers) covered most of the study area on the granite basement. As the result of the resistivity survey, it is revealed that permeable aquifer is distributed in the boundary of two layers: the basaltic layer with low resistivity; and the granite with high resistivity. Considering of outflow from Gwanin water intake facility, the area possessing underground water was estimated at least 5.7km2. The underground water recharged from Cheorwon plain was presumed to outflow along the surface of unconformity plane of basalt and granite. Based on field parameters and major dissolved constituents, groundwater and river water clearly distinguished and the spring water was similar to groundwater from the basaltic aquifer. Temporal variation of SiO2, Mg, NO3, and SO4 concentrations indicated that spring water and nearby groundwater were originated from the basaltic aquifer and other groundwater from granitic aquifer. In conclusion, the spring of the Gwanin water intake plant was distinguished from river water in terms of hydrogeochemical characteristics and mainly contributed from the basaltic aquifer.
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분말 바이오-숯으로부터 중금속 오염수 처리용 바이오-숯 비드 제조 및 적용
최유림,노훈,이규범,신복수,주완호,김남국,김진홍,양재규,조성희,장윤영,Choi, Yu-Lim,Roh, Hoon,Lee, Kyu-Beom,Shin, Bok-Su,Joo, Wan-Ho,Kim, Nam-Kook,Kim, Jin-Hong,Yang, Jae-Kyu,Reddy Koduru, Janardhan,Cho, Sung-Heui,Chang, Yoon-Young 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.6
In this study, biochar-bead, prepared from biochar powder derived from woody biomass, was used for removal cadmium ion in aqueous solution. Various mixing ratios of alginate solution and biochar powder were used for the production of round shape biochar-bead. An optimum mixing ratio was selected as 1.5% alginate solution and 20 wt% biochar. The produced biochar-bead was characterized by SEM, FT-IR, and XRD analyses. The adsorption capacity of Cd(II) by biochar-bead was found to be 9.72 mg/g which was higher than that by GAC and PAC. According to this study, round shape biochar-bead is expected to be used as a media for reactive barrier or water filtration.
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석회석을 이용하여 안정화한 중금속오염 논토양에서 토양과 식물체(벼) 간의 중금속 전이특성
고일하,김의영,권요셉,지원현,주완호,김진홍,신복수,장윤영,Koh, Il-Ha,Kim, Eui-Young,Kwon, Yo Seb,Ji, Won Hyun,Joo, Wanho,Kim, Jinhong,Shin, Bok Su,Chang, Yoon-Young 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.4
The agricultural soil, meets soil environmental standards whereas agricultural product from the same soil does not meet permissible level of contaminants, is identified in the vicinity of the abandoned mine in Korea. This study estimated the stabilization efficiency of Cd and Pb using limestone through the flood pot test for this kind of agricultural paddy soil. We had the concentration of the monitored contaminants in soil solution for 4 months and analyzed fractionations in soil and concentrations in rice plant. In soil solution of plow layer, the reductive Mn had been detected constantly unlike Fe. The concentrations of Mn in limestone amended soil was relatively lower than that in control soil. This reveals that the reductive heavy metals which become soluble under flooded condition can be stabilized by alkali amendment. This also means that Cd and Pb associated with Mn oxides can be precipitated through soil stabilization. Pb concentrations in soil solution of amended conditions were lower than that of control whereas Cd was not detected among all conditions including control. In contaminants fractionation of soil analysis, the decreasing exchangeable fraction and the increasing carbonates fraction were identified in amended soil when compared to control soil at the end of test. These results represent the reduction of contaminants mobility induced by alkali amendment. The Cd and Pb contents of rice grain from amended soil also lower than that of control. These result seems to be influenced by reduction of contaminants mobility represented in the results of soil solution and soil fractionation. Therefore contaminants mobility (phytoavailability) rather than total concentration in soil can be important factor for contaminants transition from soil to agricultural products. Because reduction of heavy metal transition to plant depends on reduction of bioavailability such as soluble fraction in soil.
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