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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Soil and Groundwater Environment
Journal Basic Information
Journal DOI :
Korean Society of Soil and Groundwater Environment
Editor in Chief :
Volume & Issues
Volume 17, Issue 6 - Dec 2012
Volume 17, Issue 5 - Oct 2012
Volume 17, Issue 4 - Aug 2012
Volume 17, Issue 3 - Jun 2012
Volume 17, Issue 2 - Apr 2012
Volume 17, Issue 1 - Feb 2012
Selecting the target year
Comparative study of Ecological Risk Assessment : Deriving Soil Ecological Criteria
Lee, Woo-Mi ; Kim, Shin Woong ; Jeong, Seung-Woo ; An, Youn-Joo ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 1~9
DOI : 10.7857/JSGE.2012.17.5.001
The purpose of ecological risk assessment in soil ecosystem is to protect ecological receptors and to provide a scheme of efficient management for soil contaminants. Developed countries have already prepared the methodologies of ecological risk assessment by considering their soil properties, land use, and ecological receptors. In this study, we compared the soil ecological risk assessment processes in the similarity and differences in methodology. Four countries, except for USA, adjusted the toxicological data for ecological risk assessment, based on their representative soil properties because the soil properties affect toxic effects to ecological receptors. The soil ecological risk assessment methodology of Netherlands and UK was based on 'Technical guidance document on risk assessment (TGD)' of European Chemical Bureau (ECB). Australia, USA, and Canada developed their autonomous methodology. In the Netherlands, UK, Australia, and Canada, they employed the species sensitivity distribution (SSD) approach if sufficient toxicity data are available. The USA determined the ecological soil screening level by obtaining the geometric mean of toxicological data for three species. Furthermore, all countries consider secondary poisoning in their soil ecological risk assessment. The latest risk assessment methodology of soil ecosystem that this study investigated can be used to explore what Korea needs to develop the Korean ecological risk assessment methodology of soil ecosystem in the future.
A Study on Hydrochemistry Characteristics of Groundwater and Surface water near a Petroleum Contaminated area
Lim, Hong-Gyun ; Lee, Jin-Yong ; Park, Youngyun ; Park, Yu-Chul ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 10~19
DOI : 10.7857/JSGE.2012.17.5.010
The aim of this study was to examine chemical and isotopic compositions of groundwater and lake water near an area contaminated by petroleum and to evaluate influence of petroleum on them during the period from March to August 2011. In dry season,
were dominant in the groundwater and lake water and
were significant in wet season.
of the groundwater and lake water were plotted near LMWL (
of the lake water did not show seasonal variation. However,
of the groundwater were enriched in wet season compared with those in dry season because of influence of small ponds around wells where evaporation losses were slightly experienced. Redox condition of most lake water was oxidation environment in contact with the atmosphere during the study period. However, redox condition of groundwater was transitional environment in dry season and oxidation environment in wet season because of influence of contaminant such as petroleum. In some groundwater, the concentrations of
in some groundwater were less than 1 mg/L because of denitrification. Also,
showed positive correlation with
and weak negative correlation with
, because of influence of denitrification.
Analytical Method of Polycyclic Aromatic Hydrocarbons (PAHs) in Petroleum Contaminated Soils - Focused on the 16 US EPA Priority PAHs
Kim, Ji Young ; Kim, Dongho ; Kim, Tae Seung ; Han, Jin-Suk ; Lee, Jai-Young ; Noh, Hoe-Jung ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 20~30
DOI : 10.7857/JSGE.2012.17.5.020
In case of analyzing PAHs (EPA 16 compounds) in oil-contaminated soils, the lump of peaks may occur because of the aliphatic and polar compounds in oil. This phenomenon is due to the lower accuracy of the analysis. To solve this problem, evaluation of application of silicagel-alumina multi-layer fraction was performed using standard substances and oil-contaminated soils. As a result of application of silicagel-alumina multi-layer fraction cleanup method using standard substances, recovery rates of surrogate standards (5 compounds including Naphthalene-d8) were 83~100% and those of target standards were 75~129%. These were to meet the target values (60~130%) in this study. When used 4% water-silicagel column analyze PAHs in oil-contaminated soils, Some problems were generated for quantitative analysis of PAHs; concentration of PAHs was underestimated due to an upward baseline of internal standard (recovery rate: less than 60%) and overestimated by the lump of peaks which were not purified (the biggest recovery rate: more than 400%). On the other hand, in case of silicagel-alumina multi-layer fraction cleanup method, recovery rate of surrogate standards were 61~101.6%. Therefore this cleanup method was considered a valid method to improve accuracy of analysis of PAHs in oil-contaminated soils.
Development of Mathematical Model for Both Solute Transport in Snow and Isotopic Evolution of Snowmelt
Lee, Jeonghoon ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 31~39
DOI : 10.7857/JSGE.2012.17.5.031
Chemical and isotopic variations of snowmelt provide important clues for understanding snowmelt processes and the timing and contribution of snowmelt to catchment or watershed in spring. The newly developed model includes a hydraulic exchange between mobile and immobile water (
), and isotopic exchanges between both mobile water and ice (
) and immobile water and ice (
). Since the new model is based on the mobile-immobile water conceptualization, which is widely used for describing chemical tracer transport in snow, it allows simultaneous calculations of chemical as well as isotopic variations in snowpack discharge. We compare the model results with a study of solute transport and isotopic evolution of snowmelt in snow, using artificial rain-on-snow experiments with conservative anion (
). These observations are used to test the newly developed model and to better understand physical processes in a seasonal snowpack where our model simulates the chemical and isotopic variations.
Economic Analysis on Desalination Technology for Saline Agricultural Land on the Basis of Crop Production
Kim, Do-Hyung ; Choi, Jeong-Hee ; Kim, Lee-Yul ; Nam, Chang-Mo ; Baek, Ki-Tae ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 40~48
DOI : 10.7857/JSGE.2012.17.5.040
In this study, economic analysis of five desalination technologies for saline agricultural land was carried out. The analysis was comprehensively evaluated by calculating changes in crop production and benefit/cost (B/C) ratio. The analysis of crop production was in the order of tomato > cucumber > a (musk) melon > watermelon > cabbage, and economical efficiency for desalination technology was in the order of soil exchange > soil addition > electrokinetics > under-drainage > subsoil reversal. In cost benefit analysis, B/C ratio was in the order of under-drainage > soil exchange > electrokinetics > soil addition > subsoil reversal, and all desalination technologies used in this study have the ratio higher than 1, which means economical efficiency was high. Based on the net production considering B/C ratio, the general economic analysis was exactly order from that of crop production analysis. As a result, economical efficiency of soil exchange was highest, and economical efficiency of soil addition and electrokinetic was relatively higher than others.
Monitoring Anaerobic Reductive Dechlorination of TCE by Biofilm-Type Culture in Continuous-Flow System
Park, Sunhwa ; Han, Kyungjin ; Hong, Uijeon ; Ahn, Hongil ; Kim, Namhee ; Kim, Hyunkoo ; Kim, Taeseung ; Kim, Young ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 49~55
DOI : 10.7857/JSGE.2012.17.5.049
A 1.28 L-batch reactor and continuous-flow stirred tank reactor (CFSTR) fed with formate and trichloroethene (TCE) were operated for 120 days and 56 days, respectively, to study the effect of formate as electron donor on anaerobic reductive dechlorination (ARD) of TCE to cis-1,2-dichloroethylene (c-DCE), vinyl chloride (VC), and ethylene (ETH). In batch reactor, injected 60
TCE was completely degraded in the presence of 20% hydrogen gas (
) in less than 8 days by anaerobic dechlorination mixed-culture (300 mg-soluble protein), Evanite Culture with ability to completely degrade tetrachloroethene (PCE) and -TCE to ETH under anaerobic conditions. Once the formate was used as electron donor instead of hydrogen gas in batch or chemostat system, the TCE-dechlorination rate decreased and acetate production rate increased. It indicates that the concentration of hydrogen produced in both systems is possibly more close to threshold for homoacetogenesis process. Soluble protein concentration of Evanite culture during the batch test increased from 300 mg to 688 mg for 120 days. Through the protein monitoring, we confirmed an increase of microbial population during the reactor operation. In CFSTR test, TCE was fed continuously at 9.9 ppm (75.38
) and the influent formate feed concentration increased stepwise from 1.3 mmol/L to 14.3 mmol/L. Injected TCE was accumulated at 18 days of HRT, but TCE was completely degraded at 36 days of HRT without accumulation of the injected-TCE during the left of experiment period, getting
from fermentative hydrogen production of injected formate. Although c-DCE was also accumulated for 23 days after beginning of CFSTR operation, it reached steady-state in the presence of excessive formate. We also evaluated microbial dynamic of the culture at different chemical state in the reactor by DGGE (denaturing gradient gel electrophoresis).
A Preliminary Study of Enhanced Predictability of Non-Parametric Geostatistical Simulation through History Matching Technique
Jeong, Jina ; Paudyal, Pradeep ; Park, Eungyu ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 56~67
DOI : 10.7857/JSGE.2012.17.5.056
In the present study, an enhanced subsurface prediction algorithm based on a non-parametric geostatistical model and a history matching technique through Gibbs sampler is developed and the iterative prediction improvement procedure is proposed. The developed model is applied to a simple two-dimensional synthetic case where domain is composed of three different hydrogeologic media with
scale. In the application, it is assumed that there are 4 independent pumping tests performed at different vertical interval and the history curves are acquired through numerical modeling. With two hypothetical borehole information and pumping test data, the proposed prediction model is applied iteratively and continuous improvements of the predictions with reduced uncertainties of the media distribution are observed. From the results and the qualitative/quantitative analysis, it is concluded that the proposed model is good for the subsurface prediction improvements where the history data is available as a supportive information. Once the proposed model be a matured technique, it is believed that the model can be applied to many groundwater, geothermal, gas and oil problems with conventional fluid flow simulators. However, the overall development is still in its preliminary step and further considerations needs to be incorporated to be a viable and practical prediction technique including multi-dimensional verifications, global optimization, etc. which have not been resolved in the present study.
Friable Test and Risk Assessment for Asbestos in Soils using the Releasable Asbestos Sampler (RAS)
Kim, In Ja ; Kim, Jeong-Wook ; Ryu, Hyun Sik ; Jung, Myung Chae ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 68~74
DOI : 10.7857/JSGE.2012.17.5.068
The objective of this study is to examine a releasable asbestos sampler developed for measuring friable asbestos from soil to air controlled by wind velocity and water contents. Asbestos contaminated soil with 3.75% at the Sinsuk-asbestos mine was sampled, air-dried and sieved to 100 mesh, then homogenized during 24 hours' agitation. Various wind velocities, 1 m/s, 2 m/s, 3 m/s, and 5 m/s, were applied to evaluate releasable characteristics of the releasable asbestos sampler. In addition, soils with 1.0%, 3.4%, 4.4%, 11.0%, 16.2%, and 20.0% of water contents were also examined the amount of friable asbestos by the releasable asbestos sampler. Collected soil and air samples were analyzed by polarized light microscopy (PLM) and phase contrast microscopy (PCM), respectively. Those contents were applied to calculate an excess life cancer risk (ELCR). This study also discussed the relationship with risk assessment by a weeding scenario of activity based sampling (ABS) and field applied releasable asbestos sampler. The result was shown that friability of asbestos in soil increased with wind velocity and decreased with water content. In comparison with ELCR results, over 10E-4 of cancer risk was found in condition on < 5% water content and > 3m/s wind velocity.
A Study for Remediation of Heavy Metal Contaminated Soil Using Electrokinetics with Swappable Electrode
Choi, Heechol ; Lee, Tae-Jin ;
Journal of Soil and Groundwater Environment, volume 17, issue 5, 2012, Pages 75~81
DOI : 10.7857/JSGE.2012.17.5.075
In this study, remediation of heavy metal contaminated soil was attempted by the electrokinetic process equipped with fixed or swappable electrode. Copper was more effectively removed with EDTA than citric acid. Zinc was much more removed than copper with both detergents. When electrokinetic with fixed electrode and detergents were applied to the contaminated soil, copper was removed about 28.52%~35.25% and zinc was removed about 63.44%~71.48%. When electrokinetics with swappable electrode and detergents were applied to the contaminated soil, the pseudo-first order reaction constants was higher about 16~50% than with fixed electrode in the case of zinc. It is conclusive that electrokinetics with swappable electrode could be an effective method for the remediation of heavy metal contaminated soil.