소규모 매립지에 대한 현장 측정 및 IPCC GL을 이용한 온실가스 발생 특성 평가

신진환 한국교통대학교 2015 한국교통대학교 논문집 Vol.50 No.-

In this study, greenhouse gas emission for small scale landfill(Y landfill) was investigate to deduce the methane generation rate constant(k). To achieve the purpose, the data of physical composition was collected and LFG emission was calculated by using FOD method suggested in 2006 IPCC GL. Also, amount of LFG emission was directly measured in the landfill sites. And the results obtained from field measurement was used in calculation of the methane generation rate constant(k), which was used as input variable in FOD method suggested in 2006 IPCC GL. From the results, the average values of methane generation rate constant(k) from Y landfill site were 0.0231 yr-1. The results of methane generation rate constant(k) was showed big difference with 2006 IPCC GL default value(k = 0.09 yr-1). It was verified that calculation results of greenhouse gas emission using default value in 2006 IPCC GL showed excessive output.

청소년(대학생)들의 환경친화형 공동주택단지 계획방향에 대한 의식차이 연구

신진환,김기수 한국청소년시설환경학회 2011 청소년시설환경 Vol.9 No.4

상수원에 함유된 페놀처리에 관한 연구

신진환 忠州大學校 2011 한국교통대학교 논문집 Vol.46 No.-

In this investigation, we mainly treated a toxicant Phenol that is constituted in waterworks. And we managed the oxidation of waterworks. We used H2O2 and O3 as an oxidizing agent. Through the reaction, It is analyzed and compared that the efficiency of the management capacity, neccessity To manage the Phenol, Two method were compared and analyzed in this study. Hydrogen and O3/UV/O2 In the consequence through the methods, we concluded that the O3/UV/O2 is superior to the hydrogen the result is that 1. To resolve the phenol Concentration 5, 15, 25 ppm, The efficiency was exceeded at 83.3% when we used the hydrogen. 2. To resolve the phenol with the hydrogen, the reaction was very slow. In the occasion of the fractional life, it was determined the value that 1.61x10-5(l/mol)1.172sec-1, 3.75x10-5(l/mol)0.792sec-1, 4.11x10-5(l/mol)1.782sec-1. 3. In the concentration 5, 15, 25 ppm, The value was exceeded when the O3/UV/O2 was used in resolving the phenol. Compared to the efficiency of the hydrogen, But\ we concluded that the method is useful with the consideration of the reaction time 30 minutes 4. To resolve the phenol with the O3/UV/O2, the reaction time was very fast,comparing to the hydrogen. And we get the value ; 1.094x10-4(l/mol)0.933 sec-1, 2.1x10-4 (l/mol)0.842sec-1,7.22x10-4(l/mol)1.332sec-1 ; with the . And in the occasion of the irreversible trimolecular-type third-order reaction., we get the value ; 3.03x105, 4.99x105, 1.35x107 (l/mol)2sec-1

시멘트 고화시 비산회의 첨가에 의한 압축강도 특성

辛鎭煥,申宅秀,朴俊圭 충주대학교 산업과학기술연구소 2002 産業科學論文集 Vol.10 No.-

The mixture of solidifying agent was composed of cement and fly ash, and fly ash used to solidify the lead sludge was commercially pretreated fly ash emitted from power plant for sale. The compressive strength of cement mortar solidified lead sludge was increased by adding fly ash up to 46∼62%, the result of pozzolanic reaction. When replaced the cement by 10% of commercial fly ash, the solid showed the highest value of 210㎏/㎠, and at that time the solidification condition was 0.55 of the water/cement ratio and curing for 14 days. At early curing time, solidified lead sludge was showed lower compressive strength because of the interference against the hydration of cement, but the compressive strength was recovered to be more than 140 ㎏/㎠ later 14 days after the curing regardless with the amounts of replaced fly ash

산화제를 이용한 난분해성 유기화합물 처리

辛鎭煥 충주대학교 산업과학기술연구소 2002 産業科學論文集 Vol.10 No.-

This study for treatment processes by investigating the treatment efficiency and reaction mechanism through oxidation reaction using UV, O_3 and H_2O_2 as oxidant in compensate the wastewater containing aniline and nitrobenzene that is non-biodegradable organic. Also by modeling these reactions, we try to step explanation of optimum reaction rate and reaction mechanism as the development of the computer program predictable the reaction rate by modeling the reaction. That is, reaction mechanism is instituted for each reaction based on documenets, a differential equation and masstransfer equation for reaction rate is established from these documents, and then new simulation model is suggested by getting a solution of a differential equation and masstransfer equation using the Rosenbrock-Hillclimb program and Runge-Kutta and being optimization. By using this model, after kinetic constant for each reaction from an experimental data is made an optimization and for hardly contribute to reaction rate in reaction kinetic equation is made an ignorance and suppose the simplified reaction mechanism, examined the propriety of computer simulation model and simplified reaction mechanism by comparing and inspecting the reaction kinetic constant and masstransfer coefficient.

자외선과 과산화수소에 의한 Chlorophenols의 분해시 광원흡수의 영향

辛鎭煥 충주대 산업과학기술연구소 1995 産業科學論文集 Vol.3 No.-

The effect of light absorbance of chlorophenols decomposition by ultraviolet radition and hydrogen peroxide oxidition in aqueous solution was studied. The light absorbance and photolytic properties of chlorophenols and H2O2 were found to be highly dependent on the solution pH and can be adequately described with the two species distribution model. For UV/H2O2 process, the individual contribution to the chlorophenols decomposition by direct photolysis and free hydroxyl radical destruction was differentiated by studying the UV light absorbance of various chlorophenols and H2O2 species.

산화제를 이용한 아닐린폐수 처리

신진환,이원호 충주대 산업과학기술연구소 1996 産業科學論文集 Vol.4 No.-

This work carried out the removal of aniline by wet oxidation in aqueous solutions like a industrial wastewater using Ozone. UV, and Ozone - UV. The main features of this experiment are as follows : the aniline was decomposed by OH and HO2 radicals which produced from the reaction of water with UV and Ozone, when the Ozone and Ozone - UV used the aniline was decomposed completely. The decomposition of aniline was very fast reaction and the reaction times were 10 min. and 20 min. in case of for Ozone and Ozone-UV respectively. Assumed simplified reaction mechanism from the aniline oxidation model, and then we are calculated the theoretical reaction rate constants by computer simulation, and then compared with experimental data. We suggest that this simulation program is applicable to estimate of the aniline decaying concentration and removal efficiency of aniline - contaminated wastewater.

화력발전소 유연탄 비산회와 Na_2SO_4 로부터 zeolite 4A합성시 숙성과정의 영향

辛鎭煥,周素榮,延翼俊 충주대학교 산업대학원 1999 大學院論文輯 Vol.1 No.-

This study was carried out to synthesize the zeolite using the bituminous coal fly ash emitted from power plant that occurs several environmental problems. In spite of the fly ash has contained high content of silica and alumina, it disposed mainly landfill. Therefore, bituminous coal fly ash was used as the source of silica and alumina which were the main components of the fly ash. And Na source also utilized Sodium sulfate(Na_2SO_4) which occurs byproduct from desulfurization process. Zeolite was synthesized by hydrothermal reaction in aqueous Na_2SO_4 and NaOH solution with sodium aluminate as additive. The effects of calcination of fly ash and aging time on crystallinity were investigated. The synthesized zeolite was proved to be 4A type through SEM images and X-ray diffraction analysis. The crystallinity presented maximum 93.7% under optimum conditions in these experiments.

산화제를 이용한 난분해성 산업폐수 처리

辛鎭煥 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.2

This work carried out the removal of aniline with wet oxidation in aqueous solution like industrial wastewater using Ozone, UV, and Ozone-UV. The main features of this experiment are as follows : the aniline was decomposed by OH and HO and HO₂ radicals produced from the reaction of water with UV and Ozone, when the Ozone and Ozone-UV used the aniline was decomposed completely. The decompo-sition of aniline was very fast reaction and the treaction times were within 10min. and 20min. in case of for Ozone Ozone-UV respectively. Simplifing reaction mechanism from the aniline oxidation model, we can calculate the theoretical reaction rate constants by computer simulation, and compare it with experimental data. We suggest that this simulation program should be applicable to estimate of the aniline decaying concentration and removal effciency of aniline-contaminated wastewater.

산화제를 이용한 난분해성 유기화합물의 처리

辛鎭煥 忠州大學校 1999 한국교통대학교 논문집 Vol.34 No.2

This work carried out the removal of aniline by wet oxidation aqueous solution like a industrial wastewater using Ozone, UV, and Ozone-UV. The main features of this experiment are as follows : the aniline was decomposed by OH and HO and HO₂radicals which produced from the reaction of water with UV and Ozone, when the Ozone and Ozone-UN used the aniline was decomposed completely. The decompo-sition of aniline was very fast reaction and the treaction times were within 10min. and 20min in case of for Ozone Ozone-UV respectively. Assumed simplified reaction mechanism from the aniline oxidation model, and the we are calculated the theoretical reaction rate constants by computer simulation, and then compared with experimental data. We suggest that this simulation program is applicable to estimate of the aniline decaying concentration and the removal effciency of aniline contaminated wastewater.