• 청정기술
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• 제27권2호
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• pp.174-181
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• 2021

본 연구에서는 경상남도 지역의 오염감시전용측정망의 5년간(2013 ~ 2017) 자료를 이용하여 주오염원과 분기별 지하수 수질특성을 분석하였다. 주오염원은 산업단지지역, 광산·폐광산지역 및 하수처리시설로 구별하였다. 분석 항목은 현장측정 항목(수온, pH, 전기전도도, 용존산소, 산화물환원전위), 양이온 그리고 음이온이었다. 수온과 pH는 주오염원에 따라 크게 변하지 않았다. 양이온과 음이온의 평균농도의 합은 산업단지지역에서 가장 높았고, 하수처리시설 그리고 광산·폐광산지역 순이었다. 산업단지지역에서는 전기전도도의 값이 가장 높았고, 용존산소의 값이 가장 낮았다. 산업단지지역은 나트륨이온이 가장 높은 구성비를 보인 반면 하수처리시설과 광산·폐광산지역에서는 칼슘이온이 가장 높은 값을 나타내었다. 모든 주오염원에서 중탄산염의 농도가 가장 높게 나타났다. 수온, pH 그리고 양이온과 음이온의 농도는 분기마다 크게 다르지 않았다. 수질유형 중 Na-HCO₃ 유형이 가장 높은 비율을 차지하였으나, 외부 오염의 가능성이 높은 Na-Cl 유형도 오염감시전용측정망의 전체 자료 중 약 20%를 차지하였다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2001년도 추계학술발표회
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• pp.9-12
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• 2001

MTBE is a gasoline additive which is widely used in the world. Its use on the air pollution reduction has been proved very effective, but has generated serious problems of groundwater contamination. Its use will be banned gradually by US EPA and other states governments in US. In Korea, it has been used since 1987 and its consumption reaches about 700, 000 tons/year. Any problems related to the groundwater contamination has not been reported in Korea, yet due to the lack of investigation. In this presentation, I raise the MTBE problems with examples of MTBE contaminations in the US.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.430-433
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• 2003

Nitrogen pollution in urban and rural groundwater is a common problem and poses a major threat to drinking water supplies based on groundwater. In this work, the kinetics of nitrification-denitrification coupled reactions are modeled and new reaction modules for the RT3D code describing the fate and transport of nitrogen species, dissolved oxygen, dissolved organic carbon, and biomass are developed and tested. The proposed nitrogen transformations and transport model showed very good match with the results of other public codes.

• 한국지하수토양환경학회지:지하수토양환경
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• 제10권6호
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• pp.1-9
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• 2005

토양오염으로 인해 피해가 발생하면 그 피해배상과 토양오염정화에 대한 책임을 진다. 이러한 책임은 민사상의 일반적 책임과는 다르다. 토양환경보전법상으로는 피해에 대하여 과실책임이 아닌 무과실책임을 지우고 있으며, 공동의 책임인 경우에는 연대책임(부진정연대책임)을 지우고 있다. 이것은 피해자의 구제를 용이하게 하기 위한 것이다. 그리고 토양정화책임과 그에 따른 비용책임에 대하여도 소급책임, 엄격책임, 연대책임을 지게하고 있다. 다만 천재지변과 전쟁으로 인한 경우에는 면책하고 있다. 책임당사자는 오염유발자와 토양오염시설의 소유 또는 점유자 및 운영자, 그리고 그 시설을 양수한 자 및 인수자로 규정하고 있다. 이와 관련하여 책임당사자가 불명하거나 무자력 등으로 인하여 책임을 질 수 없는 경구에 결국 국가가 책임을 짐으로써 국민의 조세부담을 가중시킬 염려가 있다 따라서 책임당사자의 범위를 확대시키거나 정화비용에 대한 기금제도의 활용이 요청된다

• 한국농공학회논문집
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• 제52권3호
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• pp.31-38
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• 2010

Various fundamental and practical theories and technologies are needed for the development of Best Management Practices (BMPs) to manage the problems. The objectives of this paper was to investigate the effect of fertilizer and Non-point suource (NPS) pollution discharges from the field. The effect of fertilizer application was measured with respect to 10 % and 20 % slopes, respectively, using artificial rainfall simulator. The effect of fertilizer application on runoff was not significant because the effect of slope and rainfall intensity were overwhelmed. Runoff from 20 % plots was 21 % larger than that from 10 % plots. While groundwater discharge from 10 % plots was about 70 % larger than that from 20 % plots. It was concluded that runoff and groundwater discharge were largely affected by slope. T-N concentration in groundwater was much higher than that in runoff for both 10 % and 20 % plots. While T-P concentration in groundwater was lower than that in runoff. It explained that T-N moved well through soil pores without adsorption and other chemical reactions but T-P was well adsorbed on the surface of soil particles.

• 한국지하수토양환경학회지:지하수토양환경
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• 제27권spc호
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• pp.99-112
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• 2022

From early 2000, many researchers in the groundwater and soil environment remediation project tried to calculate the pollution level and pollution remediation cost and reflect it in the design. In addition, by identifying the movement characteristics of oil pollutants in the underground environment, many researchers tried to derive design factors necessary for pollution purification. However, although the test should be conducted in an area contaminated with oil, the toxicity and risk are too great for testing by deliberately leaking pollutants that are harmful to the human body. And as oil-contaminated areas are promoted by military units such as returned US military bases, there is a limit to access by the general public. In addition, since the indoor simulation test and the field application test have been carried out separately from each other, it was difficult to compare and review various simulation tests Therefore, in this study, PITT (Partitioning Interwell Tracer Test) and analysis methods were specifically presented through actual tests so that field workers could easily use them with the help of the military base and the Korea Rural Community Corporation Soil Environment Restoration Team. However, in order to directly reflect the distribution tracer test results in the pollution remediation design, it is necessary to reduce the analysis errors by comparing the analysis results of the existing soil pollution survey, physical exploration, and numerical modeling. In addition, it is judged to be cautious in the analysis because errors can easily occur due to various factors such as the type of oil at the polluted site, the hydraulic conductivity of the aquifer, and the skill of the researcher.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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• pp.156-161
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• 1998

As grouting materials for ground improvement, silicate materials such as water glass, silica-sol and so forth are used worldwide. However, they may pollute underground water. In this study, fish poison test(Korean standard industrial code KS M 0111) which estimates toxicity for fish is applied to evaluate the toxic effect by grouting materials. From the test result of the sample made of LW, LC50(Median Lethal Concentration) reaches within 24 hours. In case of the silica-sol, it does not even in 96 hours. Therefore, we can conclude that the sililca-sol grouting method is more free from the danger of underground water pollution. From the result that the mortality of fish under the condition of pH 8.6 is 0% within 96 hours, the groundwater can be saved by controlling pH below 8.6 for the grouting in the field.

• 한국지하수토양환경학회지:지하수토양환경
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• 제22권5호
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• pp.112-127
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• 2017

Groundwater accounts for more than 10% of the total water supply in Korea. However, the contribution of groundwater to public water supply systems has been poorly played role throughout the country except for Jeju Island. Compared with the groundwater uses in foreign countries, the pattern of groundwater use in Korea seems to be very deformed and unreasonable. Currently, the development and use of groundwater in Korea are mostly carried out by the individuals, and public sectors such as central and local governments are not actively involved in such activities. Private groundwater use and management will continue to cause groundwater depletion and pollution problems. It is necessary to actively enhance the role of public authorities in groundwater managements by engaging precise hydrogeological surveys and proper economic evaluation in the development and operation of groundwater sources. Also, in order to solve the problems that public water supply systems overly rely on the surface water sources, it is necessary to take policies that require the water supply companies to secure a variety of water sources.

• 한국지하수토양환경학회지:지하수토양환경
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• 제19권6호
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• pp.1-5
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• 2014

The following research was initiated in order to compare the relationship between the amount of gunfire shot and its resulting heavy metal pollution rate. The research was conducted at two firing ranges located inside a military unit stationed in the rear strategical area, where one full distance firing range is used by soldiers in active service, and the other is used by recruits and reserves. The heavy metal pollution rate was measured also on water sample collected from the target zone while raining. Based on values such as the real amount of gunshot fired, amount of heavy metal in the soil of the target zone, and the degree of heavy metal pollution for each firing range, the research showed that although pollution rate was higher when more gunshots were fired, there was no close correlation between the two. The water samples showed that this might result from the soils containing heavy metals eroded and transported by rain due to the target zone having no vegetation.

• 자원환경지질
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• 제38권3호
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• pp.261-272
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• 2005

섬진강 유역 지하수는 주로 높은 EC의 Na-Cl형과 낮은 EC의 $Na-HCO_3^-$형으로 분리되며, $K^+,\;Mg^{2+},\; NO_3^-$ 및 $SO_4\;^{2-}$성분이 부화된 특성을 보인다. 일반적으로 지하수의 EC가 증가할수록 TDS에서 차지하는 $Na^++Cl^-$의 당량분율은 증가한다. 용존이온들간 상관유형으로부터 $N^+$와 $Cl^-$은 주의 침투된 해수에서 유래되며, $K^+,\;Mg^{2+}$ 및 $SO_4\;^{2-}$은 화학비료와 같은 인위오염원에서 주로 유래됨을 알 수 있다. 농업용수 수질기준과 비교하여 그 기준을 초과하는 지하수는 해수침입을 반영하는 $Cl^-$ 경우 조사대상 관정의 $23\%$인 반면 인위적 오염원을 대표하는 $NO_3^-$ 경우 전체의 $50\%$에 달한다. EC-SAR관계를 바탕으로 한 지하수의 유해성 평가에서 조사대상 지하수의 $40\%$만이 농업용수로서 소다질화와 염류화를 초래할 가능성이 없는 적정한 수질을 나타낸다. 결론적으로 섬진강 유역 지하수의 수질저하를 초래한 오염원은 화학비료의 사용과 해수침입이다. 또한 모든 견과들은 화학비료의 사용이 연구지역의 지하수 오염에 가장 폭넓게 영향을 미치며, 일부 특정지역에서는 강쪽으로의 해수역류 확대라는 일차적 요인과 지하수의 과다양수라는 이차적 요인에 의해 섬진강으로부터 해수가 대수층으로 침투되어 더욱 지하수질이 악화되고 있음을 시사한다.