시화호 표층퇴적물에서 미량금속의 pyritization

심무준,김은수,김경태,이광우 한국해양환경·에너지학회 1999 한국해양환경공학회 학술대회논문집 Vol.1999 No.-

토양지하수 미세환경과 오염정화효율과의 상관성 고찰

심무준,양중석,이미정,이기현,박재선,김국진,민상윤,김주영,최민주,김민찬,임종환,권만재,Shim, Moo Joon,Yang, Jung-Seok,Lee, Mi Jung,Lee, Giehyeon,Park, Jae Seon,Kim, Guk Jin,Min, Sang Yoon,Kim, Joo Young,Choi, Min Joo,Kim, Min Chan,Lim, Jon 한국지하수토양환경학회 2014 지하수토양환경 Vol.19 No.1

산업화의 영향으로 발생한 토양 지하수 내 중금속 및 유류 오염정화를 위해 다양한 시도가 이루어지고 있다. 그러나 미세토양이 상대적으로 많이 포함되어 있는 오염토양 정화시 오염물질의 rebound나 tailing 현상이 발생되어 정화기간이 장기화 되어왔다. 이러한 문제점은 미세토양과 미세공극이 존재하는 미세환경과 오염물질의 각각의 특성, 존재형태, 그리고 상호간의 다양한 반응 등으로부터 기인한다고 보고되었다. 따라서, 본 연구에서는 토양 지하수 미세환경과 오염정화 효율성과의 상관성에 대해 고찰하고 미세환경의 샘플링, 분석, 평가 기법을 소개 및 제안하며, 이를 활용한 오염정화효율 향상과 최적의 정화공법선정을 위한 정보를 제공하고자 하였다. 오염토양의 물리 화학 생물학적 특성 그리고 오염물질 종류 및 특성에 따른 정밀 평가를 통해 특정 정화공법 적용시 달성 가능한 정화기간과 정화수준을 예상할 수 있을 것이다. 따라서, 미세환경의 정밀 분석, 평가 기술을 바탕으로 정화 기술의 효율성과 타당성 검토가 가능할 것으로 판단되며 오염된 토양 지하수 복원을 위한 최적의 정화공법을 선정하는 기초자료로써 활용될 수 있을 것으로 사료된다. A variety of physical, chemical, and microbiological techniques have been developed to deal with soil and groundwater contamination. However, in the presence of the large portion of soil micro-environments, contaminant rebound and/or tailing have been frequently reported. Case study of total petroleum hydrocarbons (TPH) removal by full-scale land farming showed that contaminant rebound and/or tailing occurred in 9 out of total 21 cases and subsequently resulted in problems of a long term operation to satisfy TPH guidelines of contaminated soil and groundwater. The main cause of contaminant rebound and tailing is considered to be the strong interactions between contaminants and micro-environments including micro-particles, micro-pores, and organic matter. Thus, this study reviewed the effects of soil micro-environments of soil and groundwater on the removal efficiency for both heavy metals and petroleum contaminants. In addition, the various methods of sampling, analysis, and assessment of soil micro-environments were evaluated. Thorough understanding of the effects of soil micro-environments on contaminant removal will be essential to achieve a cost-effective and efficient solution to contaminated sites.

슬러지를 비료로 재활용하기 위하여 HNO₂와 HNO<SUB>2+</SUB>초음파를 이용한 중금속 제거

심무준(Moo Joon Shim),정태윤(Tae Yoon Jung),윤동혁(Dong Hyck Yun),윤이용(Yi Yong Yoon) 한국토양비료학회 2018 한국토양비료학회 학술발표회 초록집 Vol.2018 No.10

견운모가 함유된 에어필터가 디젤자동차 연비에 미치는 영향

심무준 ( Moo Joon Shim ),김무늬 ( Munni Kim ),진강중 ( Kang-jung Jin ),이승목 ( Seung-mok Lee ) 한국공업화학회 2020 공업화학 Vol.31 No.3

견운모는 도자기와 페인트 등의 원료로 쓰이고 있으며 근래에는 흡착제로서 폐수 내 중금속 제거에도 널리 이용되고 있다. 견운모에 함유되어 있는 성분들이 공기 중의 습기와 반응하여 산소를 배출한다는 원리를 이용하여 견운모 분말이 포함된 에어필터를 개발하였다. 새로 개발된 에어필터가 실제로 디젤자동차에 장착되었을 때 연비를 향상시키는지에 대하여 시험하였다. 그 결과 시험에 이용된 디젤자동차가 워밍업이 되었을 때 기존 에어필터를 장착했을 때와 비교하여 연비는 10~17% 증가하는 것으로 나타났다. 하지만 개발된 에어필터가 배출가스(HC, CO, NOx) 배출량에 미치는 영향은 아직 조사되지 않았으며 차후 이에 대한 연구가 필요하다. Sericite is used as a raw material for ceramics and paints, and recently it is widely used as adsorbents to remove heavy metals in wastewater. A new air filter containing sericite was developed using the principle of which components contained in the sericite react with moisture in the air to release oxygen. We tested whether the newly developed air filter actually improves fuel efficiency when mounted on a diesel vehicle. When the diesel vehicle used in the test was warmed up, the fuel efficiency increased by 10~17% compared to when an existing air filter was installed. However, the effect of the developed air filter on the amount of emissions (HC, CO, NOx) has not been investigated, and further research is required for the diesel vehicle emissions.

시화호 퇴적물의 유기탄소 , 황 및 중금속 분포

심무준(Moo Joon Shim),김은수(Eun Soo Kim),김경태(Kyung Tae Kim),이기복(Gi Bok Lee),강화성(Hwa Seong Kang),이광우(Kwang Woo Lee) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.4

Shihwa Lake is a brackish lake with high organic productivity and anoxic bottom waters. The high biological activity in surface waters along with limited vertical mixing has resulted in the development of an oxic-anoxic interface at the 3∼4m water depth. And anoxic bottom waters are enriched with PO₄, NH₃ and H₂S. Three sediment cores were collected from Shihwa Lake near the Banweol Industrial Complex in October, 1997 and were analysed for organic matters, S/C ratios, δ ^(13)C and heavy metals. The average S/C ratio was about 0.30 in the sediment cores, which is lower than 0.36, the characteristic ratio of marine sediments. Sediments appeared to be depleted in sulfur relative to organic carbon, and the total reduced sulfur showed high correlation with organic carbon. The δ ^(13)C ratios in the upper layer were slightly lower than those in the deeper layer. Heavy metals of Cr, Co, Ni, Zn and Cu showed high correlation with organic matters and with each other. Those metals have similar geochemical behavior. On the other hand, Mn, As, Cd and Pb showed low correlation with organic matters, showing that these metals may have different pathways and geochemical behavior from the former groups of metals. Heavy metal contents in the surface sediment of Shiwha Lake is also relatively high in comparison with obtained from inshore and offshore sediments of Korea.

유량변화와 지류유입에 따른 금강의 수질 변화

심무준 ( Moo Joon Shim ),이수형 ( Soo Hyung Lee ) 한국물환경학회 2015 한국물환경학회지 Vol.31 No.3

To study the influence of changes in river discharge on water quality of the main stem of the Geum River, we investigated variation of inflow load from tributaries with river discharge. We also studied the mixing behavior of pollutants during mixing of waters of the main stem and Gap Stream. For this study, we collected water quality data such as suspended solids (SS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen (TN) and total phosphorus (TP) representing pre-monsoon, monsoon, and post-monsoon events of 2013 from a website of Water Information System. Based on inflow load, the Gap and Miho streams may be ones of tributaries which may largely influence water quality of main stem in upper river region. The Suksung and Nonsan Streams seemed to further affect water quality downstream. Results of modified EMMA indicated SS and TP may have another source(besides Gap Stream) at pre-monsoon, monsoon, and post-monsoon period. In contrast, TN and organic matter (BOD, COD, TOC) were conservative at pre-monsoon and post-monsoon. However, when river discharge increased, these pollutants may also came from unspecified non-point sources. Therefore, we need to attempt to find non-point sources for the pollutants in the main channel of upper Geum River region.

대청호 유입지천의 수질 특성

심무준,윤재용,이수형 한국하천호수학회 2015 생태와 환경 Vol.48 No.1

The tributaries of Daechung Lake play an important role in controlling eutrophication in the lake, which is used for agricultural purposes and as potable water. However, water quality properties were not extensively studied in the tributaries of Daechung Lake. The objectives of this study are to investigate spatial and temporal properties of water quality and to characterize streams which could threaten water quality of Daechung Lake. For this study, water samples were weekly or monthly collected from February 2014 to October 2014 in 9 streams. Water quality parameters analyzed in this study include biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen and phosphorus (TN and TP), suspended solids (SS), and chlorophyll a. Based on temporal distribution and principal component analysis, BOD, COD, TOC, SS, and TP were controlled by not only river discharge that increased during summer due to heavy rain fall, but also due to anthropogenic input (e.g., bridge construction and/or agricultural activity). Dilution is also one of the factors explaining TN and conductivity, both of which decreased with increased discharge. Generally, concentrations of contaminants (BOD, COD, TOC, TN and TP) in the tributaries were higher than those of Daechung Lake. However, pollution load indicated that only the main channel of Geum River and Sook Stream may largely influence lake waters, attributed mostly to their large volumes. This implies that the main channel and Sook Stream are the major influences on the water quality of Daechung Lake.

시화호 퇴적물에서 인의 지화학적 특성

심무준(Moo-Joon Shim),조성록(Sung-Rok Cho),나공태(Kong-Tae Na),신진선(Jin-Sun Shin),김은수(Eun-Soo Kim) 한국해양환경·에너지학회 2001 한국해양환경·에너지학회지 Vol.4 No.3

대청호 유입지천의 수질 특성

심무준 ( Moo Joon Shim ),윤재용 ( Jae Yong Yoon ),이수형 ( Soo Hyung Lee ) 한국하천호수학회 2015 생태와 환경 Vol.48 No.1

The tributaries of Daechung Lake play an important role in controlling eutrophication in the lake, which is used for agricultural purposes and as potable water. However, water quality properties were not extensively studied in the tributaries of Daechung Lake. The objectives of this study are to investigate spatial and temporal properties of water quality and to characterize streams which could threaten water quality of Daechung Lake. For this study, water samples were weekly or monthly collected from February 2014 to October 2014 in 9 streams. Water quality parameters analyzed in this study include biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen and phosphorus (TN and TP), suspended solids (SS), and chlorophyll a. Based on temporal distribution and principal component analysis, BOD, COD, TOC, SS, and TP were controlled by not only river discharge that increased during summer due to heavy rain fall, but also due to anthropogenic input (e.g., bridge construction and/or agricultural activity). Dilution is also one of the factors explaining TN and conductivity, both of which decreased with increased discharge. Generally, concentrations of contaminants (BOD, COD, TOC, TN and TP) in the tributaries were higher than those of Daechung Lake. However, pollution load indicated that only the main channel of Geum River and Sook Stream may largely influence lake waters, attributed mostly to their large volumes. This implies that the main channel and Sook Stream are the major influences on the water quality of Daechung Lake.

추계 대청호 퇴적물 내 인의 지화학적 특성

심무준,양윤모,오다연,황윤호,이수형 한국하천호수학회 2015 생태와 환경 Vol.48 No.3

This study was conducted in autumn to determine phosphorus (P) fraction in sediments of Daechung Lake, to elucidate controlling factors for sedimentary P, and to compare with the other areas. For this study, sediment samples were collected at 6 sites only once on November 2014 using ponar grab and analyzed for solid-phase P (Loosely adsorbed, Fe-bound, Al-bound, detrital apatite, and refractory organic P) by sequential extraction. Total phosphorus (TP) was relatively high in front of Daechung Dam and Hoinam where fish farm was run until 1997. The dominant sedimentary P form was Al-bound P, followed by Fe-bound P, which could be released from sediment to water column during suboxic state. Based on principal component analysis, Al-bound P, Fe-bound, and TP were controlled by grain size of sediments. Loosely adsorbed, detrital apatite, and refractory organic P were relatively highly accumulated at the mouth of major tributaries where suspended sediments were delivered. Sedimentary P concentrations in Daechung Lake sediments were not higher than in other lake sediments. Therefore, based on these results, major controlling factors were grain size and input of suspended sediments from tributaries.