여수국가산업단지 인근 지역 대기오염물질 농도에 영향을 미치는 요인분석

김민영,변정훈,이영훈,이건영,한지은,이예림,임지현,장봉기 순천향대학교 기초과학연구소 2022 순천향자연과학연구 논문집 Vol.28 No.1,2

Eight monitoring stations in the Yeosu National Industrial Complex will determine the concentration of air pollutants measured every hour in 2019, analyze what factors affect them, and how they correlate with the air pollutant measurements. Six air pollutants (SO2, NO2, O3, CO, PM-10 and PM-2.5) measured at eight monitoring stations around Yeosu National Industrial Complex (Seogang-dong, Wolnae-dong, Munsu-dong, Yeocheon-dong, Deokchung-dong, Hwayang-myeon, Yulchon-myeon, Samil-dong) the measurement data for each hour of the year were downloaded to analyze the concentration by weather condition, time zone, season, separation distance from Yeosu Industrial Complex, and separation distance from Gwangyang Industrial Complex. SO2, NO2, and CO concentrations were significantly higher in winter, significantly lower in summer, and O3, PM-10, and PM-2.5 concentrations were significantly higher in spring. SO2, CO, PM-10, and PM-2.5 concentrations were significantly higher between 10 a.m. and 12 p.m., NO2 concentrations were significantly higher between 7 a.m. and 9 a.m., and O3 concentrations were significantly higher between 13 p.m. and 15 p.m.(p<0.001). The concentration of air pollutants (SO2, NO2, CO, PM-10, PM-2.5) excluding O3 was found to have a negative (-) correlation with weather condition, and in the case of O3, it was found to have a positive (+) correlation with PM-10, PM-2.5, temperature and wind speed. It was confirmed that the concentration of air pollutants emitted from the Yeosu National Industrial Complex differs depending on the season, time and distance to the industrial complex. This study aims to establish measures to minimize health damage to residents living relatively close to the industrial complex and contribute to the establishment of management and response measures according to the properties of substances to reduce the concentration of air pollutants in the future.

황 첨착 활성탄에 의한 구리제거

김영환,박정훈,김정섭,유현철,이봉섭,곽명화,우성훈,박승조 東亞大學校 環境問題硏究所 2005 硏究報告 Vol.27 No.1

This study was carried out to remove copper ion in case of activated carbon impregnated sulphur(ACS) dose and different pH using activated carbon impregnated sulphur that prepared from activated carbon at sulphur dioxide atmosphere. Removal copper ion concentration was increased as increasing the ACS dose when copper ion concentration was 10 mg/L. Optimum dose of ACS 13.3 g ACS/L and maximum removal efficiency was 93%. The results obtained from adsorption experiment in the condition of ACS optimum dose when the pH was 3, 4, 5 respectively was pH 5 was excellent.

有機性 廢棄物이 田土壤改良 및 大豆와 大麥收量에 미치는 影響

金武成,盧泳德,許奉九 慶熙大學校 1987 論文集 Vol.16 No.-

A field experiment was carried out to find out the effects of various organic matter resources on the improvement of soil physico-chemical properties and crop yields. Rice straw, compost and byproduct amino acid fermentation were applied to sandy loam and silty clay loam. Barley and soybean were cultivated under different fertilizer levels, conventional and integrated improvement. and several soil physico-chemical properties and crop growth were investigated. Soil physical properties such as bulk density, hardness and air permeability were improved by organic resources application. Soil organic matter increased with application of rice straw, compost and byproduct amino acid fermentation at silty clay loam and sandy loam. Yields of soybean and barley were highly correlated with porosity, bulk density, hardness, air permeability and water stable aggregates of the soils. Soybean yield was increased by 13-20% at sandy loam, 33-67% at silty clay loam respectively. Barley yield was also increased by 1-13% at sandy loam, 4-20% at silty clay loam respectively.

Mg(OH)₂를 이용한 습식탈황에서 폐슬러리 처리특성연구

김근범,이은덕,박영성,임봉수 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-

Properties analyses and treatment characteristics of waste slurry discharged in the wetted flue gas desulfurization process using Mg(OH)₂as a absorbent were investigated. Aeration and coagulation test were carried out to evaluate variation of some factors such as COD, SS, T-N, etc. related to waste slurry treatment. The hydraulic retention time(HRT) and coagulant dosage rate were applied as operating variables in experiment. As experimental results, the reduction effects of COD, SS in aeration test were distinct, due to oxidation of SO₃ and floc, formation of suspended solids. It was also found that the reduction efficiencies of SS and T-P in coagulation test are higher than 90%.

미생물을 이용한 Gellan Gum 생성의 Kinetic에 관한 연구

金春永,鄭奉佑,張光燁,李銀美 全北大學校 1992 論文集 Vol.34 No.-

Polysaccharides produced microbially, have shown themselves to be commercially significant. The reasons for the commercial exploitation of these microbial polysaccharides is because of their unique physical and consistant chemical properties and regularity of supply. Gellan gum is a recently discovered extracellular polysaccaride. This is an anionic heteropolysaccharide that forms viscous solutions and can under certain conditions, form thermoreversible gels with characteristics similar to those formed by both carrigeenan and agar. The aspect of Gellan gum produced by Pseudomonas elodea were investigated under various concentration of carbon sources and nitrogen sources. Sucrose and glucose are used as carbon source, and Bacto-peptone, Promosoy and (NH_4)_2SO_4 are used as nitrogen source. The maximum Gellan gum production was obtained in the culture medium 30.0g/L glucose, 0.6g/L Promosoy at pH 6.6, 37℃. The molecular weight of Gellan gum was 5 × 10 exp (5) which was determined by gel permeation chromatography.

방광의 염증성 가종양 1례

정영봉,배준,권명훈,김상익,김경수 大韓泌尿器科學會 2001 Korean Journal of Urology Vol.42 No.3

네트워크를 근간으로하는 분산 시스템을 위한 CNU File Server의 구현

김봉환,황영원,이광일,김상하 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.1

A file server provides remote centralized storage of data to computers connected to it via a communication network: it facilitates data sharing among autonomous computers and support of inexpensive computers that have limited or no secondary storage. The prototype of CNU File Server(CNUFS) is designed, and the implementation aspacts and initial experiences with applications are discussed in this paper.

격막형 액막에 의한 코발트 이온 및 니켈이온의 분리

金春泳,鄭奉佑,李鉉哲 全北大學校 1993 論文集 Vol.35 No.-

The separation of the cobalt ion and nickel ion was carried out which was based on the principle of coupling facilitated transport. The principle of coupling facilitated transport was developed and validated by predicting the cobalt ion and nickel ion fluxes through membrane as a function of hydrogen ion concentration in the feed solution, carrier concentration in the membrane, and content of metals ion in the feed solution, flow rate of the feed solution and acid concentration in the stripping solution. Diffusion coefficients of Co-di(2-ethyl hexyl) phosphoric acid and Ni-di(2-ethyl hexyl) phosphoric acid through polytetrafluroethylene membrane were 1.2×10^7㏖/sec and 5.5×10^8㏖/sec, respectively.

有機性 廢棄物이 田土壤改良 및 大豆와 大麥收量에 미치는 影響

金武成,盧泳德,許奉九 경희대학교 부설 식량자원개발연구소 1987 硏究論文集 Vol.8 No.-

廢棄 有機物資源인 生藁, 堆肥 및 有機質粕을 砂壤土와 微砂質 埴壤土에 施肥水準을 달리하여 大麥과 大豆를 栽培하면서 土壤의 物理化學性 變化와 作物生育을 調査하였다. 有機物資源 施用으로 土壤의 假比重, 孔隙率, 硬度, 通氣性 等 物理性이 對照區에 비하여 改善되었으며 試驗後 土壤의 有機物含量은 有機物資源 施用으로 增加되었는데 그 效果는 生藁區와 堆肥區에서 顯著하였고 土性別로는 砂壤土보다 微砂質 埴壤土에서 높았다. 大豆와 大麥의 收量은 土壤의 孔隙率, 假比重, 硬度, 通氣性 및 耐水性 粒團 等과 높은 相關이 있었으며 有機物 施用으로 大豆 收量은 砂壤土에서 134-20%, 微砂質 埴壤土에서 33-67% 增收 되었고 大麥 收量은 砂壤土에서 1-13%, 微砂質 埴壤土에서는 4-20% 增收되었다. A field experiment was carried out to find out thA field experiment was carried out to find out the effects of various organic matter resources on the improvement of soil physico-chemical properties and crop yields. Rice straw, compost and byproduct amino acid fermentation were applied to sandy loam and silty clay loam. Barley and soybean were cultivated under different fertilizer levels, conventional and integrated improvement, and several soil physico-chemical properties and crop growth were investigated. Soil physical properties such as bulk density, porosity, hardness and air permeability were improved by organic resources application. Soil organic matter increased with application of rice straw, compost and byproduct amino acid fermentation at silty clay loam and sandy loam. Yields of soybean and barley were highly correlated with porosity, bulk density, hardness, air permeability and water stable aggregates of the soils. Soybean yield was increased by 13-20% at sandy loam, 33-67% at silty clay loam respectively. Barley yield was also increased by 1-13% at sandy loam, 4-20% at silty clay loam respectively. e effects of various organic matter resources on the improvement of soil physico-chemical properties and crop yields. Rice straw, compost and byproduct amino acid fermentation were applied to sandy loam and silty clay loam. Barley and soybean were cultivated under different fertilizer levels, conventional and integrated improvement, and several soil physico-chemical properties and crop growth were investigated. Soil physical properties such as bulk density, porosity, hardness and air permeability were improved by organic resources application. Soil organic matter increased with application of rice straw, compost and byproduct amino acid fermentation at silty clay loam and sandy loam. Yields of soybean and barley were highly correlated with porosity, bulk density, hardness, air permeability and water stable aggregates of the soils. Soybean yield was increased by 13-20% at sandy loam, 33-67% at silty clay loam respectively. Barley yield was also increased by 1-13% at sandy loam, 4-20% at silty clay loam respectively.

GC-ECD를 이용한 유기염소계 및 Pyrethroid계 농약 동시 분석법

김우성,이선화,김재이,정지윤,이명자,박영채,이영자,정성욱,이봉헌,박흥재 한국환경과학회 2003 한국환경과학회지 Vol.12 No.4

Pesticides were extracted from samples with 70% acetone and methylene chloride in order, and then cleaned up via open-column chromatography apparatus packed with florisil, and finally analyzed simultaneously the organochlorine and pyrethroid pesticides using GC(ECD). An ultra-2 fused silica capillary column was used to separate and identify the products. The resolution between the last isomeric peak of cypermethrin(59.987min) and the first isomeric peak of flucythrinate(60.043min) was not satisfactory. The last isomeric peak of fenvalerate(62.344min) and the first isomeric peak of fluvalinate(62.397min) were overlapped. Recoveries of soybean sample for the most pesticides were 73.3% to 102.4%. Detection limits were between 0.004 and 0.063 ㎍/㎎ when this method was used.