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춘천시 생활쓰레기의 위생관리를 위한 배출 및 이ㆍ화학적 특성
임재명(Rim Jay Myoung),강성환(Kang Sung Hwan),한동준(Han Dong Joon),김병욱(Kim Byeoung Ug) 강원대학교 산업기술연구소 1997 産業技術硏究 Vol.17 No.-
Generation and physico-chemical characteristics of municipal solid wastes are very important for sanitary management. However, that has not been investigated so far especially in chunchon. And so, we tried to examine many things in detail. It was resulted that density was 90~94kg/㎥ in school and office zone and 290~298kg/㎥ in apartment and market place. The compositional weight fraction was food, 40~54%, paper, 14~18%, vinyl and plastic, 14~20% in house zone and market place and paper, 42~70% in school and office zone. Moisture was estimated to be 54~57% in independent house zone, apartment and market place and 11~23% in school and office zone. And three composition was water content, 44.1%, incineration particle, 11.2%, volatile parts, 44.7% in respectively. That is because of seasonal effects and regional characteristics. In the results of chemical composition and caloric value analysis, carbon(C) was 80% in vinyl and plastic and oxygen(O) was 54.4% in paper.
춘천시 생활쓰레기의 위생관리를 위한 배출 및 이·화학적 특성
임재명,강성환,한동준,김병욱,Rim, Jay-Myoung,Kang, Sung-Hwan,Han, Dong-Joon,Kim, Byeoung-Ug 강원대학교 산업기술연구소 1997 産業技術硏究 Vol.17 No.-
Generation and physico-chemical characteristics of municipal solid wastes are very important for sanitary management. However, that has not been investigated so far especially in chunchon. And so, we tried to examine many things in detail. It was resulted that density was $90{\sim}94kg/m^3$ in school and office zone and $290{\sim}298kg/m^3$ in apartment and market place. The compositional weight fraction was food, 40~54%, paper, 14~18%, vinyl and prastic, 14~20% in house zone and market place and paper, 42~70% in school and office zone. Moisture was estimated to be 54~57% in independent house zone, apartment and market place and 11~23% in school and office zone. And three composition was water content, 44.1%, incineration particle, 11.2%, volatile parts, 44.7% in respectively. That is because of seasonal effects and regional chracteristics. In the results of chemical composition and caloric value analysis, carbon(C) was 80% in vinyl and plastic and oxygen(O) was 54.4% in paper.
생물학적 황산염 환원을 이용한 금속광산 갱내수의 중금속 제거
임재명,이찬기,한동준 ( Jay Myoung Rim,Chan Ki Lee,Dong Joon Han ) 한국물환경학회 1995 한국물환경학회지 Vol.11 No.2
A laboratory experiment was performed to investigate the mine drainage treatment using the biological sulfate reduction. An acetate-added synthetic wastewater was used because of low organic content in the acid mine drainage. The presence of heavy metals in the synthetic wastewater was an operational variable for the laboratory experiment. On the basis of series of experiment, it was found that the sulfate reduction rate and organic removal rate increased with an increment of hydraulic retention time in the laboratory reactors. It was also note that the reactor fed with wastewater containing heavy metals showed a better performance. It was reasoned that the reduction of sulfide(S^2) toxicity due to the heavy metal complexation, resulting an enhanced microbial activity in the reactor fed with wastewater containing heavy metals. Total removal rate of heavy metals in the lab reactor was highly correlated with the sulfate reduction rate, and the sulfate reduction rate was closely related with COD removal rate. In addition, an order of heavy metal removals during the sulfate reduction was found as follows : Zn>Pb>Co>Ni>Cu.
생물막 공정에 의한 고농도 암모니아 폐수처리시 질소 거동 및 질산화 저해
한동준,임재명,강성환 ( Dong Joon Han,Jay Myoung Rim,Sung Hwan Kang ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.2
This study was performed to investigate the nitrogen behavior in piggery wastewater treatment, and the inhibitory condition in nitrification was also examined. The ammonia nitrogen was removed via stripping, nitrification, autotrophic cell synthesis, and heterotrophic cell synthesis. The removal percents by each step were 12.1%, 68.9%, 15.0%, and 4.0%, respectively. Nitrite and nitrate production rates were found 0.42㎎/g MLVSS/hr and 0.05㎎/g MLVSS/hr, respectively. Maximum removal rate of the total ammonia nitrogen occurred at temperature over 22℃, regardless of the volumetric loading rates. Nitrification inhibition of piggery wastewater was found to occur at an influent volumetric loading rate over 0.2 NH₃-N ㎏/㎥3d.
운행자동차의 공회전 정지에 의한 CO<sub>2</sub> 저감량 산출 연구
심무경,임재명,이범호,홍성태,이대엽,Shim, Moo-Kyung,Rim, Jay-Myoung,Lee, Beom-Ho,Hong, Sung-Tae,Lee, Dae-Yup 대한기계학회 2009 大韓機械學會論文集B Vol.33 No.10
The effect of idling stop on $CO_2$ reduction was estimated, especially in the area of in-use vehicles. In order to know the fuel saving for each class of vehicles, a methodology to calculate the fuel saving was used along with a standard test using NIER-07 mode. Idling stop execution rate was estimated by analyzing the driving pattern of the in-use city buses, which shows about 75% at maximum. And this corresponds to about 5.4% reduction of the daily total fuel consumption. Finally, $CO_2$ reduction in the automotive sector was estimated, which concludes that, when idling stop device is used, about 480 thousand and 450 thousand tons of $CO_2$ could be reduced with in-use city buses and taxis, respectively. This amount corresponds to about 1.2% of $CO_2$ reduction in the automotive sector.