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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Soil and Groundwater Environment
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Journal DOI :
Korean Society of Soil and Groundwater Environment
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Volume & Issues
Volume 13, Issue 6 - Dec 2008
Volume 13, Issue 5 - Oct 2008
Volume 13, Issue 4 - Aug 2008
Volume 13, Issue 3 - Jun 2008
Volume 13, Issue 2 - Apr 2008
Volume 13, Issue 1 - Feb 2008
Selecting the target year
A Strategic Plan and Management for Ecological Abandoned Mine Land (AML) Reuse Using GIS
Lee, Ju-Young ; Han, Moo-Young ; Yang, Jung-Seok ; Choi, Jae-Young ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 1~7
Plan and management for Ecological Abandoned Mine Lands (AMLs) reuse using Geographic Information System (GIS) technique are an ideal method. GIS technique display, manage and analyze a spatially referenced data, which can be combined in user-defined ways to make plan and decision about AMLs reuse. Local communities are affected by AMLs. In the past, plan and management of AMLs have never been considered for ecological aspects as well as using GIS. However, the rapidly growing GIS technology have proven to be a valuable tool in the process of understanding environment and of making responsible environmental decisions. This paper suggests that making responsible decision and plan using GIS can create a various types of benefits to local communities. This also shows that GIS may play a vital role at the decision/planning process of analysis and exploration of local environmental situation. We are trying to apply to decision support system for AMLs reuse. Moreover, a lot of thematic maps are making using GIS providing a comprehensive data with images. These can be an ideal platform to deliver meaningful outcomes.
Characterization and Feasibility Study of the Soil Washing Process Applying to the Soil Having High Uranium Concentration in Korea
Chang, See-Un ; Lee, Min-Hee ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 8~19
The physicochemical properties of soils having high uranium content, located around Duckpyungri in Korea, were investigated and the lab scale soil washing experiments to remove uranium from the soil were preformed with several washing solutions and on various washing conditions. SPLP (Synthetic Precipitation Leaching Procedure), TCLP (Toxicity Characteristic Leaching Procedure), and SEP (Sequential Extraction Procedure) for the soil were conducted and the uranium concentration of the extracted solution in SPLP was higher than Drinking Water Limit of USEPA (30
/L), suggesting that the continuous dissolution of uranium from soil by the weak acid rain may generate the environmental pollution around the research area. For the soil washing experiments, the uranium removal efficiency of pH 1 solution for S2 soil was about 80 %, but dramatically decreased as pH of solution was > 2, suggesting that strong acidic solutions are available to remove uranium from the soil. For solutions with 0.1M of HCl and 0.05 M of
, their removal efficiencies at 1 : 1 of soil vs. washing solution ratio were higher than 70%, but the removal efficiencies of acetic acid, and EDTA were below 30%. At 1 : 3 of soil vs. solution, the uranium removal efficiencies of 0.1M HCl, 0.05 M
, and 0.5M citric acid solution increased to 88%, 100%, and 61% respectively. On appropriate washing conditions for S2 soil such as 1 : 3 ratio for the soil vs. solution ratio, 30 minute for washing time, and 2 times continuous washing, TOC (Total Organic Contents) and CEC (Cation Exchange Capacity) for S2 soil were measured before/after soil washing and their XRD (X-Ray Diffraction) and XRF (X-Ray Fluorescence) results were also compared to investigate the change of soil properties after soil washing. TOC and CEC decreased by 55% and 66%, compared to those initial values of S2 soil, suggesting that the soil reclaimant may need to improve the washed soils for the cultivated plants. Results of XRF and XRD showed that the structural change of soil after soil washing was insignificant and the washed soil will be partially used for the further purpose.
Runoff Characteristics of the Oedocheon Watershed in Jeju Island
Ha, Kyoo-Chul ; Moon, Deok-Cheol ; Koh, Ki-Won ; Park, Ki-Hwa ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 20~32
Runoff characteristics of the Oedocheon in Jeju island were investigated using the long-term stream stage monitoring data. At the Cheonah valley in the upstream area and Oedocheon downstream, annual runoff occurred 21 and 12 times, respectively, and their average runoff periods were 21 days and 12 days, respectively. Stream stage response time to rainfall was 4 hours, and storm-water transfer from the upstream, Cheonah valley, to the Oedocheon downstream took about 2 hours. The stream discharge measurements had been carried out from Feb. 2004 to Jul. 2005, and showed that normal discharge of the Oedocheon was 0.39
/sec in average. Stage-discharge curves were developed to estimate base flow (normal discharge) and (direct) surface runoff. The base flow separations by a numerical filtering technique illustrated that annual surface runoff and base flow accounted respectively for 31.8
68.2% of the total stream discharge.
Three-Dimensional Numerical Simulation of Impacts of Fault Existence on Groundwater Flow and Salt Transport in a Coastal Aquifer, Buan, Korea
Park, Ju-Hyun ; Kihm, Jung-Hwi ; Kim, Han-Tae ; Kim, Jun-Mo ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 33~46
A series of three-dimensional numerical simulations using a generalized multidimensional hydrodynamic dispersion numerical model is performed to simulate effectively and to evaluate quantitatively impacts of fault existence on densitydependent groundwater flow and salt transport in coastal aquifer systems. A series of steady-state numerical simulations with calibration is performed first for an actual coastal aquifer system which contains a major fault. A series of steadystate numerical simulations is then performed for a corresponding coastal aquifer system which does not have such a major fault. Finally, the results of both numerical simulations are compared with each other and analyzed. The results of the numerical simulations show that the major fault produces hydrogeologically significant heterogeneity and true anisotropy in the actual coastal aquifer system, and density-dependent groundwater flow, salt transport, and seawater intrusion patterns in the coastal aquifer systems are intensively and extensively dependent upon the existence or absence of such a major fault. Especially, the major fault may act as a pathway for groundwater flow and salt transport along the direction parallel to its plane, while it may also behave as a barrier against groundwater flow and salt transport along the direction perpendicular to its plane.
Aging Effects On Partitioning Coefficients of Cd, Cu, and Zn in Metal-spiked Soils
Kim, Bo-Jeong ; McBride, Murray B. ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 47~56
Temporal changes of metal solubility have been repeatedly observed in soils equilibrated with metal salt solutions. This phenomenon is known as aging, yet factors that affect the degree of metal aging remain largely unexamined. In this study, we compared the extent of aging on metal partitioning depending on soil, metal, and metal loading. Five soils spiked with four levels of Cd (2.5-20 mg
), Cu, and Zn (50-400 mg
) salt solutions were aged in the laboratory up to 1 year. The partitioning coefficient (
) of each metal was calculated from the ratio of total to dissolved metal concentration in samples collected at times ranging from 1 day to 1 year. The highest
values for Cd, Cu and Zn were recorded in a Histosol, Andisol, and fine-textured Alfisol, respectively, whereas the lowest
was recorded for an Oxisol and coarsetextured Alfisol. For all soils, a pattern of increasing Kd with aging was evident for Cd and Zn, but not Cu. Rapid Cu sorption was limited when dissolved organic matter was high in soils. In highly-retentive soils,
values seemed to be insensitive to metal loading, although a longer period was required for the higher metal loadings to reach the same degree of metal aging as the lower loadings. In soils with low sorption capacity, the
values were determined more by metal loading than by aging. Therefore, marked differences can be expected in the degree of metal aging in spiked soils by the soil type, metal and amount of metal added.
Prediction of Nitrate Contamination of Groundwater in the Northern Nonsan area Using Multiple Regression Analysis
Kim, Eun-Young ; Koh, Dong-Chan ; Ko, Kyung-Seok ; Yeo, In-Wook ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 57~73
Nitrate concentrations were measured up to 49 mg/L (as
-N) and 22% of the samples exceeded drinking water standard in shallow and bedrock groundwater of the northern Nonsan area. Nitrate concentrations showed a significant difference among land use groups. To predict nitrate concentration in groundwater, multiple regression analysis was carried out using hydrogeologic parameters of soil media, topography and land use which were categorized as several groups, well depth and altitude, and field parameters of temperature, pH, DO and EC. Hydrogeologic parameters were quantified as area proportions of each category within circular buffers centering at wells. Regression was performed to all the combination of variables and the most relevant model was selected based on adjusted coefficient of determination (Adj.
). Regression using hydrogelogic parameters with varying buffer radii show highest Adj.
at 50m and 300m for shallow and bedrock groundwater, respectively. Shallow groundwater has higher Adj.
than bedrock groundwater indicating higher susceptibility to hydrogeologic properties of surface environment near the well. Land use and soil media was major explanatory variables for shallow and bedrock groundwater, respectively and residential area was a major variable in both shallow and bedrock groundwater. Regression involving hydrogeologic parameters and field parameters showed that EC, paddy and pH were major variables in shallow groundwater whereas DO, EC and natural area were in bedrock groundwater. Field parameters have much higher explanatory power over the hydrogeologic parameters suggesting field parameters which are routinely measured can provide important information on each well in assessment of nitrate contamination. The most relevant buffer radii can be applied to estimation of travel time of contaminants in surface environment to wells.
Extraction of Cd and Pb from Soil by Anionic Surfactant and Ligand NaI
Heo, Jung-Hyun ; Jeong, Seung-Woo ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 74~80
Heavy metals, Cd and Pb, in soil were extracted by using anionic surfactants such as AOS (alpha olefin sulfonate), SDS (sodium dodecyl sulfate), and LAS (linear alkyl benzene sulfonic acid). Metal extractability from soil was affected by the carbon number and solution pH of surfactants. LAS showed higher metal extractability due to the acidic solution condition. Although SDS has a fewer carbon number than AOS, it would produce smaller micelles and resulted in more efficient extraction of metals by increased soil contact. Cd extractability of surfactant was twice enhanced by adding NaI as a ligand. However, Pb extractability of surfactant was sometimes reduced by adding NaI. Those ligand effects were dependent on solubility of metal-ligand. The column experiment also showed that SDS having smaller micelles resulted in higher metal extractability than AOS.
A Study on the Full-scale Soil Washing Process Improved by Multi-stage Continuous Desorption and Agitational Desorption Techniques to Remediate Petroleum-contaminated Soils
Seo, Yong-Sik ; Choi, Sang-Il ; Jang, Min ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 81~87
In accompany with the transfer of US army bases, recent surveys reported serious contamination of soils by the release of petroleum from storage facilities and heavy metals accumulated in rifle-ranges. These problems have made an increased concerns of cleanup technology for contaminated soils. In this study, a full-scale soil washing process improved by multistage continuous desorption and agitational desorption techniques was examined for petroleum-contaminated soils obtained from three different remedial sites that contained 29.3, 16.6, and 7.8% of silt and clay, respectively. The initial concentrations of total petroleum hydrocarbon (TPH) were 5,183, 2,560, and 4,860 mg/kg for each soil. Pure water was applied to operate washing process, in which water used for washing process was recycled 100% for over 6 months. The results of full-scale washing tests showed that the TPH concentrations for soils (> 3.0 mm) were 50
356 mg/kg (85.2
98.2% removal rates), regardless of the contents of silt and clay from in A, B and C soil, when the soils were washed at 3.0 kg/
of injection pressure with the method of wet particle separation. Based on the initial TPH concentration, the TPH removal rates for each site were 85.2, 98.2 and 89.9%. For soils in the range of 3.0
0.075 mm, the application of first-stage desorption technique as a physical method resulted 834, 1,110, and 1,460 mg/kg of TPH concentrations for each soil, also additional multi-stage continuous desorption reduced the TPH concentration to 330, 385, and 245 mg/kg that were equivalent to 92.4, 90.6, and 90.1% removal rates, respectively. The result of multi-stage continuous desorption for fine soil (0.075
0.053 mm) were 791, 885, and 1,560 mg/kg, and additional agitation desorption showed 428, 440, and, 358 mg/kg of TPH concentrations. Compared with initial concentration, the removal rates were 92.0, 93.9 and 92.9%, respectively. These results implied we could apply strategic process of soil washing for varies types of contaminated soils to meet the regulatory limit of TPH.
Study on the Impact Of Tunnel Construction on Geo-environment - Simulation study on the Gyerong tunnel -
Lim, Hyung-Gyu ; Chang, Yoon-Young ;
Journal of Soil and Groundwater Environment, volume 13, issue 5, 2008, Pages 88~95
In this study, impact of tunnel construction on groundwater level and flow was investigated by simulation modeling, and tried to find optimal assessment method for minimization of geo-environmental problems due to tunnel construction. As a study area, Gyerong mountain area scheduled for tunnel construction was selected and the impact of tunnel construction on geo-environment compared to situation before construction was simulated. Simulation result showed that groundwater level down was observed during tunnel construction and recovered after completion of tunnel construction.