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이새민,이상락,Lee, Sae-Min,Lee, Sang-Rak 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.2
In this study, the mixture ratio included 20% (GLY 20), 40% (GLY 40), and 60% (GLY 60) based on VS with the control group (GLY 0) with no crude glycerin added. Maintaining stable pH, GLY 20 and GLY 0 showed the highest total output of biogas (1.24 L/L/d) and methane(0.78 L/L/d) as its volatile solids reduction rate was 53.56%. In case of GLY 40 and GLY 60, their pH was rapidly reduced after seven days of the study, so that their anaerobic digestion was all stopped.In the results of the study, it is desirable to add crude glycerin less than 20%, and it would be necessary to have the future researches on more detailed organic loading rate of each ratio, and analysis on economic feasibility.
유비쿼터스 기술을 활용한 가축분뇨 통합관리 시스템 개발을 위한 사용자요구사항 분석
구지희,조진현,안지연,정태웅,이새민,이상락,Koo, Jee-Hee,Jo, Jin-Hyun,Ahn, Ji-Yeon,Jung, Tae-Woong,Lee, Sae-Min,Lee, Sang-Rak 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.2
Although the livestock excretion is a significant resource in providing nutrients to the crops as it is recycled, it has been perceived as the cause of environmental pollutions for its inappropriate treatment and quality control issues. The study is aimed to develop an integrated management system for efficient management of livestock excretion using the Ubiquitous technology, and the user requirements are analyzed for development of such system. As the result of analysis on the requirements, it has been proved that such system is perceived to be necessary and the demand for several main functions can be seen as well.