scholarly journals Agricultural By-Product as a Renewable Energy Source

2020 ◽  
Vol 10 (2) ◽  
pp. 29-37
Author(s):  
Alexandra Rajczi ◽  
Irén Wickert

The energy consumption of the world, and thus of Hungary, is growing rapidly, and to date fossil fuels have had a major role. During agricultural production those kinds of by-products are generated the utilization of which is not organised effectively enough. The basis of biogas generation comes from agricultural by-products which could not be utilized in other cases, so its positive impact on the environment is beyond dispute contrary to fossil fuels. Alternative energy efficiency requirements in rural areas, besides the effects, have both economic and social benefits. The study looks for the answer to the question how the by-products produced in Hungarian agriculture and the sustainable development of the countryside are produced.

2021 ◽  
Vol 1 (49) ◽  
pp. 81-89
Author(s):  
Natalia Pravdiuk ◽  
Valentyna Kazmir

The article examines the role and importance of bioenergetics as a priority area of the grain market activation, outlines its state and problems, identifies approaches of its development considering current challenges and demands. The need to develop bioenergetics is associated with the rapid growth of the production of grain and grain-legume crops, which generates additional challenges and problems. It is worth noting among these: intensification of competition in global markets; reduction of the world prices and, consequently, the decrease in export revenues; lack of capacity and warehouses for reliable storage and high-quality processing of grain and their obsolescence; low logistical capacity of domestic ports and railway transport; limited distribution channels; increasing unemployment in rural areas due to the application of modern innovative agricultural technologies with high productivity; low capacity of processing plants; deformation of traditional production chains. This research clarifies the role of bioenergetics as a priority area for activation of the grain market, outlines its state and problems, and identifies the approaches to its development considering current challenges and demands. The greatest threats to the implementation of plans concerning the development of biofuel technologies in Ukraine are the following: 1) steady tendency towards a decrease in energy prices on the world market is the risk of the unprofitability of biofuel technologies; 2) unstable tax legislation poses financial investment risks; 3) non-market prices for competing fuels for the population (in particular, electricity and gas) results in the lack of population’s incentive to turn to alternative energy sources; 4) lack of sufficient capacity to store the required volumes of guaranteed sources of raw materials; 5) shortcomings in effective mechanisms to stimulate renewable energy, etc. Elimination and overcoming of the above-mentioned barriers will intensify biomass involvement in country’s energy balance and contribute significantly to strengthening Ukraine’s energy independence. Thus, in the near future, it is necessary to solve all the problems that hinder bioenergy development, which intensifies the progress of the grain market and directly affects the energy independence of our country.


Author(s):  
S.A. Sharipov ◽  
◽  
N.L. Titov ◽  
G.A. Kharisov ◽  
◽  
...  

The article considers the current trends in the organization of agricultural production. The directions of evaluation of efficiency of use of production resources are revealed. The prospects for the development of agricultural business in the Republic of Tatarstan are determined. It is noted that in modern conditions, the importance of agriculture in ensuring food security is significantly increasing. The results of regulation of agricultural production and state support of various organizational forms of agricultural business are shown on the example of agricultural formations of the Republic of Tatarstan. They ensured the sustainable development of rural areas and the agricultural sector of the republic, increasing labor productivity and the efficiency of using the production resources of agricultural enterprises on the basis of innovations.


2017 ◽  
Vol 22 (4) ◽  
pp. 805-836 ◽  
Author(s):  
Gerard van der Meijden ◽  
Sjak Smulders

The energy transition from fossil fuels to alternative energy sources has important consequences for technological change and resource extraction. We examine these consequences by incorporating a nonrenewable resource and an alternative energy source in a market economy model of endogenous growth through expanding varieties. During the energy transition, technological progress is nonmonotonic over time: It declines initially, starts increasing when the economy approaches the regime shift, and jumps down once the resource stock is exhausted. A moment of peak-oil does no longer necessarily occur, and simultaneous use of the resource and the alternative energy source will take place if the return to innovation becomes too low. Subsidies to research and development (R&D) and to renewables production speed up the energy transition, whereas a tax on fossil fuels postpones the switch to renewable energy.


Author(s):  
Raja IA ◽  

To achieve energy security and to address energy related environmental issues attempts have been made to find out such energy resources that are economically viable and environmentally friendly. Biogas appears as a sustainable, renewable and carbon neutral energy source, a substitute to reduce the global fossil fuels dependency. Agricultural activities generate huge amounts of organic residues annually worldwide. Microbial conversion of agriculture residue and organic wastes to produce biogas offers an attractive way for energy supply, resource recovery and waste treatment. Energy generated is renewable can have positive impact on environment, replacing fossil fuels and mitigating greenhouse gases emissions. In addition to a clean and cost effective energy source, it improves the management of manure and organic wastes and replaces inorganic fertilizer. Biogas production in the agricultural sector is a fast growing market particularly in many European countries. This article is aimed to review and investigate the potential contribution of biogas from agricultural residues. Techniques for quantitative assessment of the residue from different crops that can be recovered sustainably as a potential resource for biogas production are discussed.


2019 ◽  
Author(s):  
Maha Deeb ◽  
Peter M. Groffman ◽  
Manuel Blouin ◽  
Sara Perl Egendorf ◽  
Alan Vergnes ◽  
...  

Abstract. With the rise in urban population comes a demand for solutions to offset environmental problems caused by urbanization. Green infrastructure (GI) refers to engineered features that provide multi-ecological functions in urban spaces. Soils are a fundamental component of GI, playing key roles in supporting plant growth, infiltration, and biological activities that contribute to maintenance of air and water quality. However, urban soils are often physically, chemically or biologically unsuitable for use in GI features. Constructed Technosols (CT), consisting of mixtures of organic and mineral waste, are man-made soils designed to meet specific requirements and have great potential for use in GI. This review covers (1) current methods to create CT adapted for various GI designs and (2) published examples where CT have been used in GI. We address the main steps for building CT, the materials and which formulae that should be used to design functional CT, and the technical constraints to using CT for applications in parks, streetside trees, stormwater management, urban farming, and abandoned land. The analysis suggests that the composition and structure of CT should and can be adapted to available wastes and by-products and to future land use and environmental conditions. CT have a high potential to provide multiple soil functions in diverse situations and to contribute to greening efforts in cities (and beyond) across the world.


2020 ◽  
Vol 6 (2) ◽  
pp. 27
Author(s):  
Samira Salam ◽  
Rehena Parveen ◽  
S.M. Nasim Azad ◽  
Md. Abdus Salam

Biogas can be an important alternative energy source for the sustainable development of the energy sector. To understand the performance of the family-size biodigester in Bangladesh, a household level survey on randomly selected 360 biodigester adopters was conducted. It is evident from the study that adoption of biodigester at the household level is economically and environmentally viable. Most of the biodigesters were constructed for single household and production of biogas was sufficient for cooking for single household. About 35% of biodigesters generated surplus gas from which they earned money by selling the surplus gas. About 91% of the biodigesters were feed with cow dung, one of the optimal biogases producing substrates, which has easy access in their own households. The factor analysis suggests that the most important factors to make biodigester economically viable are: capacity of biodigester, availability of substrates, amount of investment for biodigester, and economic benefits derived from biodigester.   


2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Vladan Mićić ◽  
Pero Dugić ◽  
Zoran Petrović ◽  
Milorad Tomić

The use of fossil fuels results in global warming and pollution. In comparison with fossil fuels biofuels represent an eco-friendly, biodegradable, sustainable, cost-competitive and promising alternative energy source. They contain high energy content and do not contribute to greenhouse effect. Therefore, using cheap or renewable resources as the feedstock for biofuels production has a great potential in terms of a major contribution to future energy supply. The production and use of biofuels is already well established and a further promotion of these fuels such as lipid biofuels (bioethanol, pure plant oils and biodiesel) and gas biofuels (biomethane, biohydrogen) mainly depends on non-technical issues, such as policies and cost–effectiveness. Biofuels will definitely stay for the foreseeable future and still can continue to provide the earth and the human population with a relatively clean source of energy with several benefits such as economic benefits of providing employment and health benefits of reduced carbon emissions, leading to cleaner air. With increasing sophistication of technology and intense research and development done, one can safely infer that biofuel will become more appealing and applicable for use on a globally commercial level. As such, biofuel is acknowledged as the Earth’s future energy source. Until a newer and cleaner energy source is discovered, scientists will definitely persist in researching and enhancing biofuels to make them more cost-effective, while still being environmentally friendly.


Energy ◽  
2012 ◽  
Author(s):  
José Goldemberg

What are the fossil fuels? Fossil fuels—coal, petroleum, natural gas, and their by-products— account for approximately 85% of the world′s primary energy needs today. Use of these fuels drives industrialized economies and has become an integral part of every aspect of productive activity and...


Author(s):  
Galina Aleksandrovna Bezrukova ◽  
Tamara Anatolievna Novikova ◽  
Anatoliy Nikolaevich Mikerov

The results of a comprehensive multi-factor analysis of updated information about the demographic situation in rural settlements of the Russian Federation and working conditions in the agricultural sector of the economy are presented. It is shown that in the period from 2010 to 2018, stable population growth was registered only in 20.8 % of rural municipalities, while 79.2 % of settlements were characterized by a decrease in rural residents. Along with depopulation, critical for the sustainable development of rural areas is a prevailing explicit deformation of the age structure of the population and associated growth of demographic burden on the able-bodied rural population due to low birth rate and high death rate of men of working age, as well as the continuing migration outflow of the economically active population in the regional and Federal centers of Russia. The main place of employment in rural areas remains the production of agricultural products. Despite the differences characteristic of technological processes in certain types of agricultural activities, the specifics of labor in the agricultural sector have common aspects related to the impact of harmful factors of the production environment, the severity and intensity of the labor process. The number of people working in the agricultural sector in harmful and dangerous working conditions in the period from 2011 to 2017 decreased by 19.2 %, while the share of this category of people in the total structure of those employed in agricultural production decreased by 4.4 % to 29.4 % in 2017. According to the results of inspections of territorial bodies of Rospotrebnadzor in the period from 2011 to 2017, the share of jobs that do not meet sanitary and hygienic standards at agricultural enterprises decreased from 35.7 to 30.4 %, which indicates a trend of improvement in the sanitary and hygienic situation.


2019 ◽  
Vol 124 ◽  
pp. 01048
Author(s):  
Z. K. Ayupova ◽  
D. U. Kussainov ◽  
Zh. K. Madalieva ◽  
G. D. Rakhimova ◽  
B. Zh. Saparov ◽  
...  

The relevance of the topic is the development of alternative energy and search for new sources of energy as the main world trend of the twenty-first century. Using the energy of earth, wind, water and sun, humanity will stop polluting the environment and save valuable fossil resources. The Republic of Kazakhstan is well known with its stability and successful development. It is quite important not only for the country, but for the whole Central Asian region. Nowadays it is necessary to improve the energy returned on investment, and to make producing it cheaper. Wind power will be nearly very important in coming years. Probably the most established renewable energy source, besides hydro, becomes as cheap as fossil fuels in many markets around the world. The different types of the renewable energy were examined in this article.


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