Spatial-temporal distribution of biogas production from agricultural waste per capita in rural China and its correlation with ground temperature

Author(s):  
Bojie Yan ◽  
Yaxing Li ◽  
Yanfang Qin ◽  
Wenjiao Shi ◽  
Jingjie Yan
2019 ◽  
Vol 34 (01) ◽  
pp. 40-47
Author(s):  
Anderson Labegalini De Campos ◽  
Anderson De Oliveira Pereira ◽  
Josenilda Guimarães Lopes ◽  
Renê Faria De Araújo ◽  
Ronaldo Pereira Lima

ESTUDO SOBRE A POSSIBILIDADE DE PRODUZIR BIOGÁS PROVENIENTE DE RESÍDUOS DA AGROPECUÁRIA NO ESTADO DO TOCANTINS   ANDERSON LABEGALINI DE CAMPOS1; ANDERSON DE OLIVEIRA PEREIRA2; JOSENILDA GUIMARÃES LOPES3; RENÊ FARIA DE ARAÚJO4 E RONALDO PEREIRA LIMA5   Mestrado de Agroenergia, Universidade Federal do Tocantins, Avenida NS 15, Quadra 109 Norte, Plano Diretor Norte (Prédio do Programa de Pós-Graduação em Agroenergia), CEP 77001-090, Palmas, Tocantins, Brasil. [email protected]; [email protected]; [email protected]; [email protected]; 5 [email protected]   RESUMO: O Tocantins, entre os estados do Brasil, é um dos que possuem valores superiores em quantidade de rebanhos de gado de corte, e a bovinocultura de leite cresce de forma continuada, favorecida pelas condições climáticas. Em 2015, o estado produziu 8 milhões de bovinos e bubalinos, 296 mil suínos e 158,9 mil caprinos. As fronteiras socioeconômicas terão uma melhora significativa com a utilização de resíduos gerados na atividade rural para a geração de energia, assim como para a redução dos prejuízos ao meio ambiente, ocasionados pelos resíduos produzidos. Diante do exposto, o objetivo do presente trabalho foi avaliar o potencial de produção de biogás para a geração de energia, por meio da fermentação de resíduos oriundos da agricultura e pecuária do estado do Tocantins. A metodologia utilizada foi a revisão bibliográfica, a sistemática, a descritiva e a explicativa. Verificou-se, com este artigo, a relevância social, ambiental e econômica da inserção da energia produzida a partir dos resíduos agropecuários na Matriz Energética Brasileira. Ainda que tenham custos para instalar o sistema no Estado, a utilização de digestores fermentativos é uma alternativa para diminuir os problemas com a destinação inadequada dos resíduos agropecuários, além de ser uma forma de energia limpa, este método possuí uma fonte de recursos com o comercio dos créditos de carbono, devido a não emissão do gás metano.   Palavras-chave: resíduos agropecuários, energia, biogás.   STUDY ON THE POSSIBILITY OF BIOGAS PRODUCING FROM AGRICULTURAL WASTE THE STATE OF TOCANTINS   ABSTRACT: Beef and dairy cattle growing is one of the biggest production in the State of Tocantins - Brazil, favored by weather conditions. In 2015, the state produced 8 million cattle and buffalo, 296,000 pigs and 158,900 goats. The socioeconomic boundaries will have a significant improvement with the use of waste generated in rural activity for the generation of energy, as well as the reduction of environmental damage caused by the waste produced. Given the above, the objective of the present work was to evaluate the potential of biogas production for energy generation, through the fermentation of residues from the Tocantins state agriculture and livestock. The methodology used was the literature review, the systematic, the descriptive and the explanatory. This article verified the social, environmental and economic relevance of the insertion of energy produced from agricultural residues in the Brazilian Energy Matrix. Although they have costs to install the system in the state, the use of fermentative digesters is an alternative to reduce the problems with the improper disposal of agricultural residues, besides being a form of clean energy, this method has a source of resources with the trade. carbon credits due to non-emission of methane gas.   Keywords: agricultural residues, energy, biogas.


2019 ◽  
Vol 11 (22) ◽  
pp. 6515 ◽  
Author(s):  
Katarzyna Anna Koryś ◽  
Agnieszka Ewa Latawiec ◽  
Katarzyna Grotkiewicz ◽  
Maciej Kuboń

Adequate management of biomass residues generated by agricultural and food industry can reduce their negative impacts on the environment. The alternative use for agricultural waste is production of biogas. Biomass feedstock intended as a substrate for the agricultural biogas plants may include energy crops, bio-waste, products of animal and plant origin and organic residues from food production. This study reviews the potential of selected biomass residues from the agri-food industry in terms of use for agricultural biogas production in Poland. The most common agri-food residues used as substrates for biogas plants in Poland are maize silage, slurry, and distillery waste. It is important that the input for the agricultural biogas installations can be based on local wastes and co-products that require appropriate disposal or storage conditions and might be burdensome for the environment. The study also discusses several limitations that might have an unfavourable impact regarding biogas plants development in Poland. Given the estimated biomass potential, the assumptions defining the scope of use of agricultural biogas and the undeniable benefits provided by biogas production, agricultural biogas plants should be considered as a promising branch of sustainable electricity and thermal energy production in Poland, especially in rural areas.


2016 ◽  
Vol 21 (1-2) ◽  
pp. 61-74 ◽  
Author(s):  
Jan Loskot ◽  
Marek Smolík ◽  
Lidmila Hyšplerová ◽  
Karol Radocha ◽  
Jan Kříž ◽  
...  

AbstractRecently, there is a growing pressure on a rapid construction of agricultural biogas plants, particularly in the Czech-Polish border region. It is an area with large expanses of agricultural land which can serve to supply biogas plants with biomass. This strategy should contribute to harmonize the common agricultural policy of the European Union. A need for qualified operators of these stations on this territory is also increasing. Therefore we first include a demonstration of an education program for students in the field of agricultural waste anaerobic fermentation and biogas production. We present here the first part of an innovative approach which we use in the teaching program “Physico-technical Measurements and Computer Technology” at the Faculty of Science at the University of Hradec Kralove and also in the education of internshipers from the Faculty of Natural Sciences and Technology at the University of Opole. There are requirements to fulfil labour market expectations and to make this subject more attractive for the students. Students’ theoretical and practical preparation constitutes a comprehensive source of knowledge and skills required in a real life job. Joined theoretical and practical knowledge gained by students, reinforced by the skills developed during task analysis followed by their solution, provides the future graduate higher quality abilities and better position in the labour market.


2017 ◽  
Vol 205 ◽  
pp. 3525-3530 ◽  
Author(s):  
Xing Su ◽  
Hang Li ◽  
Xu Zhang ◽  
Bo Song

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Safoora Mirmohamadsadeghi ◽  
Keikhosro Karimi ◽  
Akram Zamani ◽  
Hamid Amiri ◽  
Ilona Sárvári Horváth

Organosolv pretreatment was used to improve solid-state anaerobic digestion (SSAD) for methane production from three different lignocellulosic substrates (hardwood elm, softwood pine, and agricultural waste rice straw). Pretreatments were conducted at 150 and 180°C for 30 and 60 min using 75% ethanol solution as an organic solvent with addition of sulfuric acid as a catalyst. The statistical analyses showed that pretreatment temperature was the significant factor affecting methane production. Optimum temperature was 180°C for elmwood while it was 150°C for both pinewood and rice straw. Maximum methane production was 152.7, 93.7, and 71.4 liter per kg carbohydrates (CH), which showed up to 32, 73, and 84% enhancement for rice straw, elmwood, and pinewood, respectively, compared to those from the untreated substrates. An inverse relationship between the total methane yield and the lignin content of the substrates was observed. Kinetic analysis of the methane production showed that the process followed a first-order model for all untreated and pretreated lignocelluloses.


Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 87
Author(s):  
Galyna Trypolska ◽  
Sergii Kyryziuk ◽  
Vitaliy Krupin ◽  
Adam Wąs ◽  
Roman Podolets

Renewable energy generation in Ukraine is developing slower than state strategies and expectations, with the installations for energy generation based on biogas currently being among the lowest in terms of installed capacity. Most of those involved in energy generation from agricultural biogas are large enterprises, while the small and medium-sized farms are far less involved. Thus the article aims to assess the economic feasibility of biogas production from agricultural waste by specific farm types and sizes, with a special focus on small and medium-sized farms. The research results present findings in two dimensions, first defining the economic feasibility of biogas installations in Ukraine based on investment costs and the rate of return at both the current and potential feed-in tariff, and second, analyzing the influence of state regulation and support on the economic feasibility of agricultural biogas production in Ukraine. The results emphasize that the construction of small generation capacities does not provide sufficient funds under the current feed-in tariff to meet the simple return period expected by the domestic financing institutions. Except for the general support programs for agricultural activities, there are no support funds specifically for biogas producers, while there is tight competition with wind and solar energy due to diversified feed-in tariffs.


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