International Journal of Excellence Innovation and Development ||Volume 1, Issue 1, Nov. 2018||Page No. 032-034||
Generation of Biogas from Kitchen Waste and Cow Dung An Experimental Analysis Ravindra Bhardwaj1, A.K. Saxena2, G.S. Sailesh Babu3 1
Research Scholar, Department of Electrical Engineering, Faculty of Engineering, Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra, Uttar Pradesh, India 2 Professor, Department of Electrical Engineering, Faculty of Engineering, Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra, Uttar Pradesh, India 3 Associate Professor, Department of Electrical Engineering, Faculty of Engineering, Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra, Uttar Pradesh, India
Abstract—The demand for electricity is increasing continuously and exponentially and the conventional fuels are depleting rapidly and renewable energy technologies are being seen as better alternatives. Popular among these technologies include solar photovoltaic, solar thermal, wind energy and biogas based technologies. These sources can be used for power generation and/or direct or indirect cooking. The use of Biogas for power generation, cooking and its by-product (slurry) as manure for agriculture makes it distinct from other renewable energy technologies. Biogas production requires anaerobic digestion, which is a microbial process for production of biogas, with methane (CH4) and carbon dioxide (CO2) being primary constituents. The quality and quantity of produce of a Biogas plant is dependent on numerous parameters. The main objective of this paper is to study the effect of such parameters viz. temperature, PH value, Total Solid Concentration (TSC), Alkalinity, etc. on the Biogas Generation from organic matter as kitchen waste and cow Dung. This work also presents the experimental results obtained on a completely recycled anaerobic reactor made from cylindrical column of borosilicate glass with total volume of 5L. Keywords—Biogas, anaerobic digestion, kitchen waste, cow dung
INTRODUCTION The demand for electricity is increasing continuously and exponentially and the conventional fuels are depleting rapidly resulting in increased interest in nonconventional and renewable energy sources and pertinent technologies. Popular renewable energy technologies include solar photovoltaic, solar thermal, wind energy and biogas based technologies. All these sources of energy can be used for power generation and direct or indirect cooking. Whereas, solar and wind based technologies are climate dependent, biogas based technologies do not suffer from the same. Ability of Biogas technologies to generate electric power, cooking gas and manure for agriculture makes it more attractive.
impact on water sources etc.) and enhancing the value of residual products [1]. To prevent emissions of greenhouse gases and leaching of nutrients and organic matter that would cause a threat to the environment, it is necessary to close the loops from production to utilization by optimal recycling measures [2,3].In many countries, sustainable waste management, as well as waste prevention and reduction, have become major political priorities, representing an important share of the common efforts to reduce pollution and greenhouse gas emissions and to mitigate global climate change[4,5]. Decreasing environment pollution (methane) spread by wastes, avoiding ground water pollution, decreasing greenhouse gas emissions in atmosphere because of reduced usage of fossil fuels, reducing amount of fossil fuels consumption etc., [6] gained extreme importance in recent times and effectiveness of Biogas plants in these areas have resulted in increasing research interest. In the literature, a large number of publications on the generation of electricity and heat from variety of biomass which are organic matter available in abundance in the nature (Food waste, Sewage water, Kitchen waste, Cow dung and Bio-waste based cell etc.) are reported. A pilot plant was developed to study the generation of biogas from domestic sewage and kitchen waste[7]. In [8], investigation of possibility of laboratory-scale for biogas production from cow dung under four different treatments was carried out. In this effort, slurry (3 g dung: 10 cm3 water) in the digesters was subjected to anaerobic digestion over a four-week retention period, with weekly measurements of gas yields. The results presented substantiates that cow dung could be used as a suitable substrate for biogas production. In [9], a study was conducted to explore kitchen waste as viable input for production of methane gas and to estimate the relation in number of feedstock and quantity of biogas produced. The efforts listed in literature are indicative of the emphasis given to the study on generation Biogas & Electricity using cow dung & Kitchen waste by research community and encourages this effort.
METHODOLOGY Biogas operations have numerous advantages which include, production of clean heat and electricity, reducing the impact of organic wastes on the environment (i.e. reduced greenhouse gases and lower www.ijeid.com
Generation of biogas done through anaerobic digestion, and happens in the absence of oxygen. Anaerobic digestion has three important biological processes viz. (i) Hydrolysis (ii) Acidification (iii) Methanogenesis.
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