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박진식,장성호,김수생,배계선 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.2
This study was performed to investigate the utilization of waste sand for removal of heavy metal ion in industrial wastewater. The results obtained from this research showed that removal rate of heavy metal ions were excellent in the increase of waste sands amounts except Cr. If we reflected the adsorption capacity(k) and adsorption intensity(l/n) of Freundlich isotherm, we couldn't consider waste sands as a good adsorbent. But we could know that waste sands were capable of removing a part of heavy metal ion.
박진식,장성호,김수생 동아대학교 법학연구소 1999 硏究報告 Vol.22 No.2
The majority of general wastes have been treated by landfill method in Korea and the landfill period of landfill site was influenced by waste's density. The aim of this study was to investigate waste's vehicle charge density and throw down density for plan, design and management of landfill site. Vehicle charge density and throw down density of total waste was 0.375 ton/ ㎥, 0.408 ton/ ㎥, respectively and incinerated ash's density was higher than the others. Difference of density with a day of the week was due to distinction of waste's composition ratio at the time of investigation. Total waste's density was extremely influenced by garbage' density. General waste's vehicle charge density and throw down density carried in SG landfill site(after '97. 9) was assumed 0.299 ton/ ㎥, 0.263 ton/ ㎥ respectively.
초기 함수율 조절이 음식물쓰레기의 발효사료화에 미치는 영향
박진식,정경원,김수생 동아대학교 환경문제연구소 2000 硏究報告 Vol.23 No.1
The purposes of this study were to determine the optimum fermentation process for the feed production of garbage and estimate the practical value of fermented feed using kudzu creeper and sawdust as bulking agent. This study considered initial moisture contents, control as the fermentation process variables. The results are summarized as follows. To, solve the dewatering and sanitary problems and maintain the proper moisture contents and aerobic condition, this garbage fermentation process used kudzu and sawdust as bulking agent. The effective fermentation could be achieved at the moisture contents of 60% with bulking agent. Optimum condition of fermentation consists of moisture contents. For optimum fermentation of gravitationally dewatered garbage, the proper mixing ratios of kudzu(moisture contents : 17.3%) and sawdust (moisture contents : 13.2%) were 41% and 39%. respectively.
박진식,장성호,문추연,성낙창,김수생 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.2
This Study has been carried out to evaluate the neutralization ability of waste oyster shelles. The results of this study are summerized as following ; 1. For reactiontime, neutralization effective were investigate smally but pH variations were investigate largely for 10 minutes reactiontime. 2. pH variations with dosage of oyster shelles were small except pH 2 3. Therefore, waste oyster shelles is able to neutralize for acid wastewater.
매립지 조기안정화에 따른 침출수 및 매립가스 분포 특성 연구
박진식,안철우,박출재,김수생 동아대학교 환경문제연구소 1999 硏究報告 Vol.22 No.1
This study was conducted to establish primary data for the stabilization assessment of expired landfill site with analysis of leachate and landfill gas Based on the results of the experiments, BOD and COD concentration of leachate became low after earlier stabilization facilities and COD/COD ratio of leachate was investigated average 0.18 in 1998. Variation of CH₄concentration of landfill gas in spring and summer were higher than autumn and winter and CH₄concentration was investigated average 14.2% in Dec. 1998.
文秋淵,朴鎭植,金秀生 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.2
This study has performed to investigate and evaluate the amount of pollutants and the status of water quality of the Hyung-San River and prediction water pollution loads. In the field survey('94.11-'95.3), mean concentrations of BOD were found 0.78-4.90ppm, respectively, which were exceeding the second grade at inflow point of Sindang stream The predicted BOD pollution loads of Hyung-San river in 1996, 2001, 2006, 2011 were 13,068.3 kg/day, 13,003.1 kg/day, 9,355.6 kg/day, 9,506.6 kg/day.
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.
정경원,박진식,문추연,강석간,김수생 동아대학교 환경문제연구소 1996 硏究報告 Vol.19 No.1
This study was performed for composting of septic tank sludge which had been not dewatered in the various bulking aegents and investigating the condition and the adequate composting and the mixing rate. And results of the research are as follows; (1) Rice straw in the five bulking agents was the most fermentavility and the mixed rate was 1:3 in the time (2) The range of the optimum moisture content was 64.2-67.3% and air quantity was 0.8ℓ/min-㎏VS in the time (3) The coming to the time of the maximum temperature was showed between 58 and 110 hrs after inputing composter. (4) It being composting by the windows method, If the Quanlity was over 1 ㎥, the composting was successful. (5) The composting was the most quick, optimum under C/N ratio of 29.92-34.66 (6) The maximum temperature of 49-53℃ was showed under the adequate condition of each element;Moisture Content, Air Quautity, pH, CO₂ prodution quantity was 0.59-0.69m mole/day.g(VM) in the time
梁富弘,朴碩鉉,崔生吉,孫泰鎭,金基洙 충주대 2003 産業科學論文集 Vol.11 No.-
In this study, the potential energy and limitation of the facility of Chungju national university are analyzed in the respect of human knowledge, nature, and visual environment. In addition, the effctiveness and problem of the existing master plan are evaluated through the investigation on the main hart and development procedure of the previous master plan of CJU. These results are compared and reflected to the plan of Vision 2003, e-STRR2010 and effective campus development plans of CJU are presented.
共同住宅 居住者 特性과 住居環境滿足度의 相關關係에 관한 硏究
金基洙,朴碩鉉,梁富弘,崔生吉,朴義權,孫泰鎭,成基文 충주대 2004 産業科學論文集 Vol.12 No.-
The purpose of this research was to analyze the correlation of the characteristics of dwellers and residential satisfaction in apartment housing. The contents of this research is to identify characteristics of dwellers, which might have an influence on residential satisfaction in apartment housing. In conclusion, the number of a family, the floor level, the size of housing unit and tenure had statistically significant correlations with the residential satisfaction in apartment housing.