사용종료매립지 환경현황 및 사후관리대책

김은호,박진식,김정권,안종수,성낙창,김수생,박출재 동아대학교 환경문제연구소 1996 硏究報告 Vol.19 No.1

In this study, we can be obtained the following conclusions about the present environmental conditons and the post management of the expired landfill. 1. The component ration in paper, vinyl·plastic and leather·rubber of combustible amounts to much more than others. In the future, decompositions will be delayed considerably, due to these. 2. Except heavy metals in leachate, each of analysis value change considerably, but are equal to the component of general leachate. 3. The soils of lower part in landfill do not differ greatly from surrouding soils. soil pollutions with heavy metals in general domestic waste proved to be concerned greatly. 4. All of landfill facilites are poor in enviromental, and the post management is rearly controlled, so the proper countmeasure preparation is urgent.

흡착제로써 폐자원을 이용한 염색폐수의 색도제거

김은호,성낙창,김수생,김국태,이영형 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.1

Dyeing has always had a pressing need for techniques that allow economical pretreatment for color removal in wastewater. The effectiveness of adsorption for color removal from dyeing wastwater has made it an ideal alternative to other expensive treatment options. This study deals with an investigation on four waste resources locally available in dyeing wastewater treatment for color removal. Peat, bentonite, slag and fly ash were utilized for this study and their performance evaluated against that of granular activated carbon. Color of dyeing wastewater was high removed in peat, bentonite and slag except for fly ash. In point of recycling, if waste resources substituted for a valuable adsorbent such as granular activated carbon, peat, bentonite and slag could look forward to an expected economical effect.

이성분 CO_2/N,N-DBFA계의 고압 상거동

김낙현,곽철,박인수,황영기 경남대학교 신소재연구소 2001 신소재연구 Vol.13 No.-

초임계 이산화탄소를 포함한 N,N-Dibutylformamide(N,N-DBFA)계에 대한 이성분계 상평형 데이터를 얻기 위해 실험을 행하였다. CO_2 / N,N-DBFA의 이성분계 압력-조성관계를 온도 318.2K, 338.2K, 358.2K, 378.2K 그리고 398.2K와 압력 2.45∼22.67 MPa 범위에서 얻었다. 일정 압력에서 N,N-DBFA에 대한 이산화탄소의 용해도는 온도가 증가함에 따라 감소함을 알 수 있으며, 또한 혼합물 임계점 압력은 온도가 증가함에 따라 증가하였다. 순수성분 이산화탄소와 N,N-DBFA에 대해 증기압을 서로 연결하는 혼합물 임계곡선을 계산하였다. 본 연구에서 실험한 자료를 Peng-Robinson 상태방정식으로 모델링하였으며, Peng-Robinson 상태방정식에서 온도에 독립적인 두 개의 파라미터를 이용하여 계산한 계산치와 실험치를 비교한 결과 좋은 일치를 보였다. The high pressure binary phase equilibria data were obtained for N,N-Dibutylformamide(N,N-DBFA) with supercritical carbon dioxide. Pressure-conposition isotherms were obtained for CO_2 / N,N-DBFA system at the temperatures of 318.2K, 338.2K, 358.2K, 378.2K and 398.2K and pressures of 2.45 to 22.67 MPa. The solubility of carbon dioxide in N,N-DBFA decreased as the temperature increased at a constant pressure. The pressure at critical points of the mixture increased as the temperature increased. At a nominal pressure, the curve of critical points for the mixture exhibited a maximum at temperatures between the critical temperatures of CO_2 / N,N-DBFA system. The experimental results obtained in this study were modeled using the Peng-Robinson equation of state. A good fit of the data were obtained with the Peng-Robinson equation using two adjustable mixture parameters for CO_2 / N,N-DBFA system.

쓰레기 埋立場 浸出水 중의 重金屬 除去에 관한 實驗的 考察

金秀生,成樂昌,鄭賑化 동아대학교 환경문제연구소 1989 硏究報告 Vol.12 No.1

This study was carried out in a batch apparatus to removal Heavy Metals using zeolite (Z-Ⅰ, Z-Ⅱ) actived carbon (A-Ⅰ, A-Ⅱ) and mixed zeolite-actived carbom (ZA-Ⅰ, ZA-Ⅱ, ZA-Ⅲ) as an adsorbents. Some results obtained are summerized as followings ; 1. The best on of seven adsorbents is ZA-1 (Zeolite ; Activated carbon=1 : 1) in batch adsorption tests. 2. Equilibrium relations·between adsorbents and adsorbates was concided in Freundlich equation. (0.33≤1/n≤0.71) 3. When ZA-Ⅰ was used as adsorbents, The Removing Rate of Cr(Ⅵ), Cd(Ⅱ), Pb(Ⅱ) and Zn(Ⅱ) was 59%, 54%, 79% and 68% in 10 minutes and the adsorption equilibrium was reached in 30 minutes. 4. The optimum pH values ranged 5.0 to 7.0.

都市廢棄物 浸出水의 生分解性 實驗에 관한 硏究

金秀生,成樂昌,朴出在 동아대학교 환경문제연구소 1990 硏究報告 Vol.13 No.1

A Biodegradability test of Municipal Waste Leachate(M. W. L) was performed and results of the research are as follows : 1. Treatment of M. W. L for aeration tank with detention times of 8 to 24 hours, BOD loadings of 0.49-1.48 BOD/㎥·d and MLSS concentration of 7660∼8480㎎/ℓ gave TCODcr removal efficiency of 76∼86%, TBOD of 92∼94% and TSSre of 88∼92% The maximum removal ouured at a detention of 24 hours. 2. Metabolzm Factor(Km) was calculated to be 2.2/h4 (1.5∼3.3/hr) 3. Oxigen Requirement of about 1.41㎏·₂/㎏·BODrm was required to get BOD removal efficiency of 92% 4. Chemical treatment with Composition of sample required after biological treatment, because TCODcr removal efficiency was law.

都市廢棄物 埋立과 環境汚染

金秀生,成樂昌 동아대학교 환경문제연구소 1984 硏究報告 Vol.7 No.2

The objective of this study is to investigate the amount of disposal and the composition of urban solid wastes, to research environmental pollution and harm effect of leachate, gases in a solid waste landfill. Ultimately, the author hope this study is used to be a guide for design of urban solid wastes treatment plant in the future. The results of this study were as follows; 1. Based on the amount of disposal and the composition of urban solid wastes, it is the time that the conventional simple landfill must be changed. 2. The existing leachate treatment plant must be improved, because it has many problems. 3. The counterplan for the harm effect resulted from the gases found in a landfill should be established. 4. From the economic point of view, it is desirable that urban solid wastes should be treated by wide seashore landfill or composting.

국내하천 수질오염과 상수대책

김수생,성낙창,장성호,박현건 동아대학교 환경문제연구소 1994 硏究報告 Vol.17 No.1

The Purpose of this article is to suggest for water quality improvement in Korea. In order to preseve from water pollution, the synthesized plan is required urgently. It is that short-term, middle-term, long-term of measure to counter water quality management.

매립지 환경조건을 고려한 중금속 용출시험의 재평가

김은호,박진식,안종수,김정권,성낙창,장성호 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

This study was to understand leaching characteristics with pH controlling agents and Temp. control, and investigate leaching characteristics with pH control from opening a leaching test to an end for reassessing leaching test of heavy metals with enviromental conditions in landfill. The results were as followed ; 1. Because leaching of heavy metals was increased in low pH, pH must control for leaching in existing leaching test. 2. Generally, regulation time(6hr) of leaching was confirmed reasonablely, except for Cu in plating sludge. 3. In pH controlling solution, there was nearly not difference between Acetic acid and HCl, and if considering Cu, the former was appropriate. 4. In a part of heavy metal, leaching rate was increased in high Temp, and normal Temp, in existing leaching test would be revaluated.

컨테이너화물의 통관에 관한 실무적 고찰

김권수,한낙현 慶南大學校 産業經營硏究所 2002 産業經營 Vol.30 No.-

都市廢棄物 埋立地에서의 生物學的 安定化에 관한 基礎硏究

金秀生,成樂昌,李敦吉 동아대학교 환경문제연구소 1991 硏究報告 Vol.14 No.1

The main results of this experimental study are as follows : 1. According to BOD_(5)/COD_(Mn) time passing : The results of landfill after two year and five years are 0.55 - 0.75, 0.35 - 0.50, respectively. 2. Analysis composition generated from decomposition methane gas generation is constantly steady state, four steps process about 38 months after landfill. 3. From the result of analysis of waste composition in landfill, the half life of organic decomposition in waste is about 38 months after landfill. 4. The temperature variation with the depth of landfill the area is the highest in between 1 - 2m. The temperature slope in underground is 1.5 - 2m.