쓰레기 매립지 침출수 거동 예측평가 연구

정종관,장원,Jung, Jong-Gwan,Jang, Won 한국환경영향평가학회 1995 환경영향평가 Vol.4 No.1

For the purpose of saving the waste disposal cost a self-governing community on the whole reclamates the wetland and uses it as a landfill site. During the operation period of site, the environmental impact by the leachate is usually neglected. Therefore, to predict the environmental impact and dispersion of leachate, the wetland adjacent to the South Han River in Chungju is selected as a site of case study. The main content of this article is to apply the simulation model CONMIG to leachate transfer in the ground water and to derive the impact by the leachate. A kind of non-reacting conservative material, chloride ion is used as a tracer to quantify impacts by the leachate.

수도권 매립지의 특정폐기물 매립에 관한 연구

장원,정종관 ( Won Jang,Jong Gwan Jung ) 한국폐기물자원순환학회(구 한국폐기물학회) 1993 한국폐기물자원순환학회지 Vol.10 No.2

쓰레기 매립지 침출수 거동 예측평가 연구

장원,정종관 한국환경영향평가학회 1995 환경영향평가 Vol.4 No.1

For the purpose of saving the waste disposal cost a self-governing community on the whole reclamates the wetland and uses it as a landfill site. During the operation period of site, the environmental impact by the leachate is usually neglected. Therefore, to predict the environmental impact and dispersion of leachate, the wetland adjacent to the South Han River in Chungju is selected as a site of case study. The main content of this article is to apply the simulation model CONMIG to leachate transfer in the ground water and to derive the impact by the leachate. A kind of non-reacting conservative material, chloride ion is used as a tracer to quantify impacts by the leachate.

폐기물 매립지 침출수에 의한 중금속 용출에 관한 연구

장원,정종관,박영숙 한국환경영향평가학회 1997 환경영향평가 Vol.6 No.1

Sanitary landfill is a general method as a final disposal of municipal solid waste (MSW), therefore leachate characteristics are very various as time goes by because of highly concentrated organic acids are contained nonbiodegradable COD. So it is hard to abide by the mandatory standards of discharge even though applying the physicochemical and biological processes to treat the leachate. The process of treating leachate are determined by the degree of removal and components, but they are highly contained organic materials. It is a removal method to use jointly with the physicochemical process if the hard and fast rule is needed. The critical components of material are COD, ammonia, salts and heavy metals in the case of treating biologically. Biological process is to use metabolism of microorganism, therefore it is a desirable condition which heavy metals are not contained, because they acting as an inhibitor of enzyme. Of these are contained, organic decomposition and synthetic function of microorganisms decrease significantly. Consequently, this research paper lays emphasis on the concentraion of heavy metals in leachate and for the purpose of forecasting the factors which are affecting the leaching of metalic waste in some degree, experimented the various reacting conditions. 1. When the concentration of heavy metals in leachate is in comparison with the level eluted after reaction, at pH 7.9 the result of reaction for PCB to CCL scrap showed that Zn, Mn, Cu was more eluted 11.6 times, 340.3 times, and 2,705.5 times respectively than the leachate undiluted solution. 2. At the condition of strong acid pH 4.7, the concentration of heavy metals in EM undiluted solution showed that Zn, Mn, Cu was more eluted 26.5 times, 147.3 times, and 3,656.3 times respectively than leachate undiluted solution. 3. When the ratio leachate to EM was 50 vs 50(V/V%). Mn was more eluted 198.7 times than leachate undiluted solution, but Zn and Cu do not show the meaningful results. 4. The color of landfill leachate was black-brown. And fulvic acid that is main ingredient of NBD COD contained oxygen of 44∼50%. For that reason, I estimated that the level of Zn, Mn, Cu was higher than the case of leachate. 5. COD of leachate from general landfill is difficult to remove. Because the solution of heavy metals is improved by the character of leachate (pH & ingredient of oxygen etc.) hence the Mn, Cu, Zn act as disturbing factor, the biochemical treatment is hard. Therefore the type of PCB & CCL scrap, iron, aluminum contained metals need to previously separate from general wastes as much as possible.

폐기물 처리시설 입지선정 평가기준 설정에 관한 사례연구

장원,정종관 한국환경영향평가학회 1997 환경영향평가 Vol.6 No.2

The siting process of municipal solid waste treatment facility consists of a structured set of policies that guide the implementation of waste management goals. The main problems of siting process are the social and political context or the community opposition. During the past, the traditional siting process has been obsolete in most parts of the country, so public officials and researchers have tried to experiment with new policies and procedures. A number of controversial issues offer insight into the factors that are related to the local residents opposition to new waste treatment, facilities. The purpose of this case study focused on the establishment of criteria in the site selection of waste treatment facilities which can carry out resources recovery, incineration and landfill simultaneously. That is to say, the main points are to make concrete the quantification standards of assignment and take an objective allotment scale according to the assessment factors. The summarized result are as follows; 1. To promote the site selection based on the guideline such as rational, objective and due process of law, it is desirable to inform the local residents the methods of assessment in advance. 2. Totally 20 factors for the site selection are divided into 3 categories such as living environment characteristics, technological location characteristics and socio-economic factors. And the supposed magnitude of weight in all items are equally applied. 3. In regard to 20 assessment factors, the allotment of point is distributed by the specific location characteristics. Namely to the make the assessment easily, each factors are set the scale from 1 to 5 points en masse along the data which are acquired in the region.

한국의 핵시설과 방사능 문제 그리고 환경운동의 역할

장원,석광훈,정종관 한국환경정책학회 1997 環境政策 Vol.5 No.1

Nowadays, "Global Warming" is a serious environmental problem, So, we must be careful to use the energy in industry, home and other Parts. In 1970's,advanced industrialized countries nuclear lobbists had propagated that Nuclear Power plant can solve the "Green House Effect" problem. But their propaganda was found that it was a mistake. Nuclear power plants couldn't improve the "Global Waring" problem and they made another problem in addition. Was radiation problem Radiation is into materials to human and other living things, Nuclear power plants occasionally relented radiation into the air and water, addition, if nuclear facilities induce accidents, such as Chemobyl Accident or Three-mile Island Accident, people who ye near them must suffer very serious catastrophe. So, nowadav most of advanced countries construct no more nuclear power plants. Instead, they are now start to use renewable energy, for example, solar energy(such as photovoltaic electriciy, solar heat, etc.) and wind power. South Korea has the most active nuclear plants construction program in the world, such as 5 reactors are now being built, Now nuclear industry lobbists in Korea propagate the same thing that the advanced countries did in 1970. But Korean people and the Government's officials must know that radioactivity released from nuclear power planes are the most serious environmental problems in the w()rid.