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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 12, Issue 6 - Dec 2007
Volume 12, Issue 5 - Oct 2007
Volume 12, Issue 4 - Aug 2007
Volume 12, Issue 3 - Jun 2007
Volume 12, Issue 2 - Apr 2007
Volume 12, Issue 1 - Feb 2007
Selecting the target year
Developing an Efficient Information Management System of Soil Contaminated Sites in Korea: 2. Future-Oriented Framework
Hwang, Sang-Il ; Kim, Hun-Mi ; Lee, Yang-Hee ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 1~7
The whole objective of two papers in series was to develop the framework of an information management system (IMS) for soil-contaminated sites. In the previous first paper (Hwang et al., 2006), current status of information management in our country and the developed countries was investigated and four suggestions were made. In this work (the second paper), the future-oriented framework for information system of soil contamination sites and several suggestions were made.
USGS Groundwater Scientific Research Policy
Yum, Byoung-Woo ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 8~13
This report is providing recent USGS policy on various ground-water research themes, which bears on i) USGS future policy within next decade, ii) recent ground-water science research topics, and iii) publication policy on ground-water modeling publication. USGS, an outstanding leading organization in the world geological sciences, has been taking higher priority on ecosystems and its changes than any other themes. This report will be helpful for us to compare our present status and to prepare future plan.
The Scale-Dependent Dispersion Through Convergent Flow Tracer Tests in Alluvial Aquifer with High Permeability at the Ttaan isle, Gimhae City
Kang, Dong-Hwan ; Shim, Byoung-Ohan ; Kwon, Byung-Hyuk ; Kim, Il-Kyu ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 17~25
Convergent flow tracer test for 2 m (IW-1 well) and 5 m (IW-2 well) of test scale was conducted at the alluvial aquifer with high permeability and storativity. Pumping rate for convergent flow tracer test were
, and the chloride tracer of 5 kg was instantaneously injected into IW-1 and IW-2 wells. Differences of first arrival time and peak concentration were analyzed by using the concentration breakthrough curves of chloride. Recovered chloride mass were analyzed by recovered cumulative mass curves. And, increment and decrement for chloride concentration were analyzed through chloride concentration versus recovered cumulative mass ratio graphs. Also, increment and decrement ratios of chloride concentration were estimated through linear regression analyses for increment and decrement intervals of chloride concentration. Longitudinal dispersivities were estimated by quot;Converging Radial Flow With Instantaneous Injectionquot; method using CATTI code. Longitudinal dispersivities estimated by CATTI code were 0.4152 m between pumping well and IW-1 well, and 3.2665 m between pumping well and IW-2 well. Longitudinal dispersivity was increased according to far distance from the pumping well. The longitudinal dispersivity according to distance were estimated as 0.21 between pumping well and IW-1 well, and 0.65 between pumping well and IW-2 well.
Removal of Dissolved Iron in Groundwater by Injection-and-Pumping Technique: Application of Reactive Transport Modeling
Choi, Byoung-Young ; Yun, Seong-Taek ; Kim, Kyoung-Ho ; Koh, Yong-Kwon ; Kim, Kang-Joo ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 29~37
Shallow alluvial groundwaters in Korea of tell exceed the Korean Drinking Water Standard for dissolved iron (0.3 mg/L), which is one of the important water quality problems, especially in the use of bank infiltration technique. Using the reactive transport modeling, in this study we simulated the effectiveness of injection-and-pumping technique to remove dissolved iron in groundwater. The results of simulation showed that pumping of groundwater after injection of oxygenated water into aquifers is very effective to acquire the permissible water quality level. Groundwater withdrawal up to several times of irjected water in volume can be applicable to yield drinkable water. Potential problems such as clogging and permeability lowering due to in-situ precipitation of iron hydroxides may be insignificant. We also discuss on the mechanism and spatial extent of iron removal in aquifer.
Effect of Surfactant on Reductive Dechlorination of Trichloroethylene by Zero-Valent Iron
Shin, Min-Chul ; Choi, Hyun-Dock ; Yang, Jung-Seok ; Baek, Ki-Tae ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 38~45
Trichloroethylene (TCE) is a representative dense non-aqueous phase liquid (DNAPL) and has contaminated substance environments including soil and groundwater due to leakage and careless. DNPAL, has been treated by surfactant-enhanced aquifer remediation (SEAR). After application of SEAR, groundwater contains still surfactant as well as little amount of residual TCE. Permeable reactive barrier using zero-valent iron (ZW) is a very effective technology to treat the residual TCE in groundwater. In this study, the effect of the residual surfactant on the reductive dechlorination of residual TCE was investigated using ZVI. Mixed surfactant composed of nonioinic surfactant and cationic surfactant was used as a residual surfactant because of toxicity and enhancement of dechlorination rate. Structure of surfactant affected significantly the decrhlorination rate of TCE. Mixed surfactant system with relatively short polyethylene oxide (PEO) chain in nonionic surfactant, cationic surfactant did not affect TCE dechlorination rate. However, mixed surfactant system with relatively long PEO chain in nonionic surfactant shows that TCE dechlorination rate was significantly dependent on fraction of cationic surfactant and HLB of nonionic surfactant. Cationic surfactant with trimethyl ammonium group enhanced reductive dechlorination rate compared to that surfactant with pyridinium group.
Development and Application of Acute Bioassay Method on Solid Samples using Bioluminescence Producing Bacteria
Ko, Kyung-Seok ; Kong, In-Chul ; Jung, Hong-Gyung ; Ro, Yul ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 46~52
A toxicity method using bioluminescence producing bacteria, Escherichia coli DH5 RB1436, was developed and applied on solid environmental samples. In the assay, 1 g soil sample was mixed with 4 ml RB1436 strain. Sets amended with p-buffer were employed for control in soil test, showing approximately 108% of sets amended with combusted soils. Measurable differences were observed between relatively more polluted groups (HP) and less polluted groups (LP) of soil samples, showing average toxicity 43 and 26%, respectively, in direct soil toxicity test.
's for all soil groups appeared in the range of
, but those of sediments from dam reservoir and refuses were below 0.22 g. This developed bioassay should prove useful as a screening test for toxicity in various types of environmental solid samples.
Quenching Curves for VOCs in the Analysis of Groundwater
using Liquid Scintillation Counter
Lee, Kil-Yong ; Cho, Soo-Young ; Yoon, Yoon-Yeol ; Ko, Kyung-Seok ; Kim, Yong-Je ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 53~59
Optimal quenching curves have been studied for the accurate analysis of
in groundwater polluted by reducing efficiency of volatile organic compounds (VOCs) in liquid scintillation counter (LSC). The quenching parameters (SQP(E)) were measured for ten VOCs such as benzene, toluene, ethylbenzene, o-(m-,p-)xylene, trichloroethylene (TCE), tetrachloroethylene(PCE), carbon tetrachloride and chloroform. The quenching curves were plotted using
standard solution and chloroform as a quenching agent. Optimal plotting conditions were determined for standard solution, LSC measuring time and the concentration of chloroform. The quenching effects of chlorinated organic compounds such as TCE, PCE, carbon tetrachloride and chloroform were greater than those of BTEX (benzene, toluene, ethylbenzene and xylene). Optimum measuring time was 100 minutes far 7,000 dpm/mL standard solution. A few mL of chloroform should be added for good quenching curves. These quenching curves have good correlation coefficients (> 0.99) and the curves could be applied to accurate analysis of
in groundwater and tap water.
Analysis of Higher Temporal Moments for Breakthrough Curves of Volatile Organic Compounds in Unsaturated Soil
Kim, Heon-Ki ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 60~69
Understanding the behavior of gas phase VOCs (volatile organic compounds) in unsaturated soils is of a great environmental importance for public health concerns. Moment analysis for the breakthrough curves (BTCs) during transport of chemicals in porous media was known to be a useful tool to evaluate the velocity, spreadness, and the skewness of the plume of the chemicals. In this study, the temporal moments of the BTCs of a group of VOCs were analyzed for the gaseous transport in an unsaturated soil. BTCs were measured using lab-scale column experiments for four different VOCs at the water saturation range of 0.04-0.46, and for eleven VOCs at a water saturation of 0.21. The central second and third moments of the VOCs were compared with the water saturation and the first moment. It was found that both central second and third moments increased with the first moment. The central third moment was, however, found to be more sensitive to the first moment.
PAHs Degrading Bacterium Separation and Identification for Biological Treatment
Kim, Man ; Choi, Kyoung-Kyoon ; Go, Myong-Jin ; Park, Jeong-Hun ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 70~77
Pseudomonas sp. KM1 was separated from soil contaminated by petroleum and identified. The isolated strain is Gram-positive, rod-shaped and immotile. In batch culture, the optimum cultivation temperature and pH was
and 7, respectively. Biodegradation of PAHs experiment with soil slurry system was performed using Pseudomonas sp. KM1. Pseudomonas sp. KM1 could degrade 7 PAHs including naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, pyrene, and fluoranthene. These mixed PAHs was easily degraded within one day except fluoranthene, which was degraded much slowly, taking several days by this isolated bacteria. Pseudomonas sp. KM1 is good candidate for bioremediation of PAHs contaminated soils. Biodegradation rates of naphthalene, phenanthrene and pyrene in soils were different at each soil, and the rates were decreased as sorption capacity increased.
Groundwater Quality and Contamination Characteristics Associated with Land Use in Ulsan Area
Lee, Byeong-Dae ; Yun, Uk ; Sung, Ig-Hwan ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 78~91
The groundwater chemistry is heavily influenced by land use. This study has investigated the groundwater quality and contamination characteristic associated with land use. Contamination index (
) was estimated for evaluating and areal distribution of groundwater contamination degree. Groundwater samples collected from 216 locations in the study area show great variability in chemical composition. Electrical conductance ranges from 100 to
. The pH values are between 4.6 (acidic) and 8.57 (weak alkaline). The water types predominantly represent the
types, whereas, in the residential and business areas, the water type is shifted to (Na, Ca)-Cl type with rich concentration of Cl. The
values of the study area range from 1.1 to 117.6 with a mean of 9.56.
Evaluation of Status of Groundwater Quality Monitoring Network of Korea : Implications for Improvement
Park, Joung-Ku ; Kim, Rak-Hyeon ; Lee, Jin-Yong ; Choi, Dong-Hyuk ; Kim, Tae-Dong ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 92~99
As of 2007, there are 2,499 groundwater quality monitoring stations in total in Korea. Among them,478 are operated by the MOCT (Ministry of Construction and Transportation) for the National Groundwater Network Program, 781 wells by the ME (Ministry of Environment) for monitoring of the area where imminent contamination is expected, and 1240 wells by the local governments for monitoring of other areas. Even though, water quality data obtained from those wells are being provided to the public since 1999, the information for the wells has not been appropriately informed. In this study, we assessed the wells that are being used for the national groundwater quality monitoring from the points of operation, location, and well configuration to provide suggestions for the improvement of the national groundwater quality monitoring.
Stabilization of Heavy Metals-contaminated Soils Around the Abandoned Mine area Using Phosphate
Lee, Eun-Gi ; Choi, Sang-Il ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 100~106
The objective of this study was to evaluate the efficiency of
for the stabilization of soils contaminated with multi-metals containing Pb, Cd and As. The application rate of stabilizers to soils was determined based on
molar ratio of 0.5, 1, 2, 4. The results of Korea Standard Test and TCLP (EPA Method 1311) showed the reduction of metal leachabilities below the regulatory limits for Pb and Cd when
were applied. However, stabilization efficiency for Cd was low and in case of As leaching concentration increased rather. It is considered that
due to leaching Pb under low pH condition created by adding
. Accordingly Pb was stabilized by dissolution and precipitation of hydroxypyromorphite. From the change of metals fraction using sequential extraction procedure when
applied as a stabilizer, we confirmed that residual fraction increased more than 60% and this result was accorded with XRD analysis that detected only hydroxypyromorphite peak in
Dispersion Characteristics of Hazardous Elements for the Stream Sediments of Primary Channels in the Namhae-Hwngye area
Park, Yaung-Seog ; Park, Dae-Woo ; Kim, Jong-Kyun ; Hong, In-Hee ; Lim, Sung-Tae ;
Journal of Soil and Groundwater Environment, volume 12, issue 6, 2007, Pages 107~117
Dispersion characteristics and envirounmental impactes of the stream sediments were investigated and geochemical disaster in the Namhae-Hwagye area was predicted. Stream sediments having no possibility of contamination effect and representing drainage basins were collected. Major and hazardous elements concentrations were determined by XRF, ICP-AES and NAA analysis methods. Acid decomposition for the ICP-AES have been used
and HF with
heating at 1'st and after that
, HF and HCl with
heating at 2'nd stage. Hazardous elements concentrations for the stream sediments in the Namhae area were Cu
. Hazardous elements concentrations for the stream sediments in the Hwagye area were Cu
. Concentration of Cu and Co in the stream sediments show a negative correlation with
in all study area. According to E.I.(Enrichment Index) of stream sediments was not enriched in study area. And average E.I. was 0.35 (Namhae) and 0.56 (Hwagye) respectively. The stream sediments were enriched as in order of Pb > Cr > Co > Cu. And the average of Enrichment Factor (E.F.) was 0.46 to 2.84, respectively. E.F. concentration of Cu and Co were nearly similar enrichment characteristic but E.F. concentration of Cr were higher enrichnent characteristic in Namhae than Hwagye area. Pb was highly enriched in all study area but the tolerable level that used to investigate the enrichment degree of hazardous elements, was not exposed to harmful hazardous elements.