期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：4
页码：1218-1223
出版社：University of Mohammed Premier Oujda
摘要：Biogas can provide a clean, easily controlled source of renewable energy from organic waste materials for a small labour input, replacing firewood or fossil fuels which are becoming more expensive as supply falls behind demand. During the conversion process pathogen levels are reduced and plant nutrients made more readily available, so better crops can be grown while existing resources are conserved. Since small scale units can be relatively simple to build and operate biogas should be used directly if possible for cooking, heating, lighting and absorption refrigeration, since both electricity generation and compression of gas for storage or use in vehicles use large amounts of energy for a small output of useful energy. This concept is suited to distributed systems where waste is treated near the source, and sludge is also reused locally, to minimise transport and initial capital cost compared to a centralised system. As the distributed system will need a support network biogas contributes to the triple bottom line, benefiting the environment, reducing costs and contributing to the social structure. This paper will present the feasibility study on mini biogas power plant (MBPP) which is first developed and operated in Malaysia and launched at Universiti Sains Malaysia (USM). USM with the collaboration Enerbon Sdn Bhd setup up this mini biogas power plant as an education and research and development to professionals and researchers and at the same time give opportunity to the people who are interest with this system to see and experience their self by looking how this mini biogas power plant works. The objectives of this paper are two-fold; firstly to determine whether food wastes (canteen and cafeterias wastes) can produce methane gas (biogas) that can generate heat and electricity and secondly to establish how much methane gas (biogas) can be produced with the certain amount of the feedstock. It should be pointed out that this MBPP can generate 600kW electricity per day as this system can generate electricity about 25kW/h. The methane produced per day is approximately 180 cubic metres. The higher the wastes, the higher the amount of methane gas produced. The cow dung is used to increase the bacteria in the tank; the methane gas production will be higher if the bacteria breed.
