Review on Factors Affecting Biogas Production

IOP Conference Series: Materials Science and Engineering, 2019

As a substitution of fossil fuels and a resource of Renewable Energy, Biogas is of vital important in this era of abated energy resources. Production of biogasfrom anaerobic digestion by utilization of waste and organic matter provides an excellent solution for waste management. In this review, it is shown that what are the main factors which affectthe biogas production, how they are affecting and at what condition optimal results are produced. Temperature is the important factor which affects the biogas production. At higher temperature, maximum biogas is produced.There are other factors like the C/N ratio, pH value, compression ratio, and thetotal solid concentration whichare affecting the biogas production. In this paper concentration of all these factors at variousconditions has been noted and the optimal conditionis specified. It is also specified at what condition the higher gas yield will be produced.

The demand of energy is increasing day by day. So we are forced to non-conventional energy sources. The bio energy place a major role to meet the energy demand. There are different sources of renewable energy available. But the Biogas technology is proved to be the most promising sources of renewable energy. The Biogas technology has the potential to meet the energy needs in rural/urban area. Biogas technology is found to be cheap, non-polluting, eco-friendly, and self-content. The amount of solid wastes generated in developing countries such as India has steadily increased over the last two decades as a result of population explosion and continuous growth of industries and agricultural practices. Particularly large quantities of fruits waste and flower waste generated, which could be used as biogas inputs to compliment the fuel usage alternative. In addition, a large number of families and educational institute (hostels) generate heavy waste in the kitchen on a daily basis, which could be converted to economic benefits. In this work a comparative study of biogas production from kitchen waste, mixed fruit waste and flower wastes was conducted under the same operating condition. The each waste mixed with water and loaded into the reactor. Biogas production was measured for a period of 20 days and at an average temperature of 33?C. Biogas production started on the 5th day and attained maximum value on the15th days of reactor. The average biogas production from fruit waste, kitchen waste and flower waste was measured. It’s concluded that the waste can be managed through conversion into biogas, which is a source of income generation for the society.

Rekayasa, 2021

Biogas is a gas produced by anaerobic activity with the process of decomposition (degradation) of organic materials. Biogas can be produced from several sources of methane, including domestic (household) waste, biodegradable waste, animal waste, or organic wastes that can be decomposed under anaerobic conditions. This study aims to determine the effect of various conditions (time, pH, stirring time and the type and concentration of inoculum) on biogas production and to analyze the optimum conditions in the biogas production process. This research was conducted with the factors that influence the process of making biogas. Based on the analysis results obtained several processes in the production of biogas, among others, hydrolysis, acetogenesis, asedogenesis, and methanogenesis. The results of the previous experiment were the optimal biogas research from tofu liquid waste, biogas produced with a volume of 26,700 ml, within 36 days and was obtained using an operating temperature of 35-40ᵒC and using cow dung inoculum, and using a 36 liter digester.

Results in Chemistry, 2024

Biogas is obtained from the breakdown of biomass by microorganisms and bacteria in the absence of oxygen. Biogas is considered a renewable source of energy, similar to solar energy and wind energy. Biogas can be produced from biomass or bio-waste; thus, it is environmentally friendly. Biogas is obtained in a suspended monoxide decomposition process by anaerobic bacteria or in a fermentation process of decomposable materials such as agricultural manure, sewage, municipal waste, green waste (gardens and parks), plant material and agricultural products. Biogas is a renewable natural energy source that leaves effective effects on nature and industries. This gas is produced from the decomposition of organic materials, including animal manure, food waste and sewage. Fertilizers and waste produce biogas through anaerobic digestion (ie without the presence of oxygen). Biogas is a mixture of gases generated by decaying biodegradable material without the presence of oxygen. Its main contents are 50–70 % of methane (CH4) by volume, 30–50 % of carbon dioxide (CO2), and traces of other gases, like hydrogen sulfide (H2S) and water vapor (H2O). CO2, H2S, and water vapor content in biogas may affect the performance and life of the energy conversion devices; consequently, their removal before end-use is essential for improving the quality of biogas. This combination is an ideal option for making renewable energy. The most important advantages of biogas (production of energy, reduction of the amount of discarded waste, reduction of pathogens, conversion of waste containing organic matter into high quality fertilizer, protection of vegetation, soil, water, increasing productivity in the field of livestock and agriculture) and It is also one of the disadvantages of biogas (incomplete and small technologies, containing impurities, the effect of temperature on biogas production, unsuitable for urban and dense areas, not affordable). For economical use of biogas, the fermentation process can be carried out under controlled conditions in a relatively simple device called a digestion reservoir. This review summarizes the current state-of-the-art and presents future perspectives related to the anaerobic digestion process for biogas production. Moreover, a historical retrospective of biogas sector from the early years of its development till its recent advancements give an outlook of the opportunities that are opening up for process optimization.

Ecological Chemistry and Engineering S, 2016

The aim of the research is the development of theoretical and methodical bases for determining the feasibility of plant raw materials growing for its further bioconversion into energy resources and technological materials to maximize profit from business activities. Monograph, statistics, modelling and abstract logical methods have been used during the research. Directions of biogas usage have been examined. Biogas yields from different crops have been analyzed. It has been determined that high methane yields can be provided from root crops, grain crops, and several green forage plants. So, forage beet and maize can provide more than 5,500 m

Zenodo (CERN European Organization for Nuclear Research), 2022

In countries like India food waste accounts for more than 50% of the Municipal solid waste collected. Food waste has a lot of potential to be used as a raw material because of its enrichment in organic properties. This review paper presents a study on the basic principles of anaerobic digestion and the reactions which let it occur. Here we have observed all those factors on which the efficiency and production of biogas depends such as pH, Temperature, C/N Ratio, Retention Time. We also have discussed the parameters so that some changes in the digester can be done to increase the efficiency.

Energy Conversion and Management, 1997

Experimental studies have been performed to find the biogas generation capacity of each mixture and its individual components of various categories of waste materials. like animal dungs, kitchen wastes, waste flowers, etc. Hence, the best waste material, that can produce the maximum amount of biogas from each category of waste materials, has been found at a specific temperature of 37 C. ,i" 1997 Elsevier Science Ltd. All rights reserved.

E3S Web of Conferences

Worldwide, there is increasing awareness that the use of alternative energy technology is one of the best means to accomplish development of sustainable energy. One of the method is to convert the compounds which are full of organic biodegradable material into useful material. This involves a basic but complex conversion process known as anaerobic digestion. The production of Biogas can be done by organic waste material like forest dry leaves, flowers, fruits, materials from animals such as cowdung, poultry waste, materials which are bi products of dairy and food industries. The vegetable waste in finely shredded form from our kitchen can also be used for biogas. Initially the process was very much time consuming as the technical parameters related to biogas production were not known. It has been observed that the generation of biogas can be controlled by monitoring various parameters related to design of biogas plant, internal parameters related to digestion process and also use of...

Renewable and Sustainable Energy Reviews, 2012

Biogas is said to be a clean and renewable form of energy. It can replace fossil fuel, thereby eliminating environmental concerns caused by them. Due to several constraints in the process of anaerobic digestion, the potential of this technology is not fully utilized. This paper reviews various techniques like co-digestion, pre-treatments, use of additives, variation in control parameters etc, which could be used to intensify the production of biogas.

2008