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사용 종료된 비위생 매립지의 시간 경과에 따른 매립가스의 분석에 의한 안정화 특성
연익준,전태성,조중식 忠州大學校 2008 한국교통대학교 논문집 Vol.43 No.-
It is necessary to verify the stabilization of landfill gas and wastes for managing and utilizing a closed municipal solid waste landfill site. In this study, the landfill gas was collected and analyzed in site, and the landfilled waste was excavated to assess the environmental stabilization of depended time frame in the closed open dumping landfill. The physical analysis of the landfill showed that organic matters were composed of 0.89~29.13% in total after five years following the landfill closing, and 0.79~28.60% after eight years. Rapid-biodegradable organic matters completely decomposed in five years and slow-biodegradable organic matters did not yet. Inorganic matters were not large of difference of passed time and in the analysis of landfill gas, CH4 and CO2 gradually decreased with time. The assessment in this study, reveals that the landfill after appeared the maturation phase based on the analysis of LFG, and also provides the fundamental data for establishing the environmental plan and maintenance of the closed landfill.
열병합 발전소에서 발생한 탈황석고의 재활용을 위한 특성분석
연익준,조병렬 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.2
This study is for the purpose of utilizing the FGD gypsum that is produced as a by-product by responding to the calcium carbonate that is injected to eliminate SO₂ from the wet flue gas desulfurization process of the combined heat and power plant. To analyze the chemical characteristics of the FGD gypsum, the chemical formation was examined through an analysis of pH, ICP, XRD and SEM. pH 6.5~6.8 shows as one of the characteristics of the FGD gypsum, as a surface analysis result of XRD, SEM, it shows in a form of calcium sulfate dihydrate
산업단지 주변지역 주민의 악취인식이 주관적 악취강도에 미치는 영향 - 오창산업단지를 중심으로 -
연익준,정주용,박성식 한국냄새환경학회 2016 실내환경 및 냄새 학회지 Vol.15 No.2
This study has intended to analyze the impact of odor perception of residents, who currently live in Ochang industrial complex, on their subjective odor sensitiveness. In addition to the relationship between the perception and the sensitiveness, odor acceptance was considered as moderating variable in a research model. Korean governments has experienced even great and small civil complaints regarding bad smells throughout the country especially around the industrial complex. The residential areas are getting much closer to industrial complex due to major cities’ expansion. The closer cities are to industrial areas, the bigger the conflicts are growing due to the odor. According to the research results, it was proven that residents’ concerns on an bad image due to odor, their perception on an administrative agency’s responsibilities and economical values of their living places have a significant effect on the odor sensitiveness. Moreover, odor acceptance perceived by them has a negative moderating effect between odor perception and odor sensitiveness. Based on such results, implications and suggestions are included in the research to support the research objectives.