scholarly journals Assessment of environmental impact of agricultural biogas plants

2018 ◽  
pp. 24-31
Author(s):  
Monika Janas ◽  
Alicja Zawadzka
Keyword(s):  
Anaerobic Fermentation ◽  
Water Environment ◽  
Comprehensive Analysis ◽  
Gaseous Pollutants ◽  
Potential Range ◽  
Fermentation Processes ◽  
Atmospheric Air ◽  
Biogas Plants ◽  
Solid Liquid ◽  
Soil And Water

Operation of biogas plants, anaerobic fermentation processes, collection and purification of biogas and its subsequent combustion may be a source of environmental hazard. The construction and operation of biogas plants is inextricably connected with the generation and emission of solid, liquid and gaseous pollutants into the environment. The aim of the work is to analyze environmental hazards resulting from the construction and operation of biogas plants. As part of the work, a comprehensive analysis of their impact on individual components of the environment was made. The effect of biogas plants on atmospheric air, soil and water environment and acoustic climate was analyzed and the potential range of these impacts was presented.

Detailed monitoring of two biogas plants and mechanical solid–liquid separation of fermentation residues

2009 ◽  
Vol 142 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Alexander Bauer ◽  
Herwig Mayr ◽  
Katharina Hopfner-Sixt ◽  
Thomas Amon
Keyword(s):  
Liquid Separation ◽  
Biogas Plants ◽  
Solid Liquid ◽  
Solid Liquid Separation

scholarly journals Silage of the organic fraction of municipal solid waste to improve methane production

2021 ◽  
Author(s):  
Mario F. Castellón-Zelaya ◽  
Simón González-Martínez
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Methane Production ◽  
Organic Fraction ◽  
Acid Fermentation ◽  
Fermentation Processes ◽  
Silage Fermentation ◽  
Solids Concentration ◽  
Biogas Plants ◽  
Metabolites Production

Abstract The silage of the organic fraction of municipal solid waste (OFMSW) is a common practice in biogas plants. During silage, fermentation processes take place, affecting the later methanisation stage. There are no studies about how OFMSW silage affects methane production. This work aimed to determine the effects of silage (anaerobic acid fermentation) at different solids concentrations and temperatures on methane production. OFMSW was ensiled at 20, 35, and 55 °C with total solids (TS) concentrations of 10, 20, and 28% for 15 days. The ensiled OFMSW was then tested for methane production at the substrate to inoculum ratios (S/I) of 0.5, 1.0, and 1.5. Independently of the temperature, the production of the metabolites during silage increases with decreasing solids concentration. The highest metabolites production were lactic acid, ethanol, and acetic acid, representing together 95% of the total. Methane production from ensiled OFMSW at 10% solids concentration shows, under every tested condition, better methane production than from fresh OFMSW. Ensiled OFMSW produces more methane than fresh OFMSW, and methane production was highest at 35 °C.

scholarly journals Identification of Threats to the Soil and Water Environment on the Example of an Inactive Landfill Site

2018 ◽  
Vol 19 (4) ◽  
pp. 181-190
Author(s):  
Agnieszka Pusz ◽  
Magdalena Wiśniewska ◽  
Dominik Rogalski ◽  
Grzegorz Grzyb
Keyword(s):  
Water Environment ◽  
Landfill Site ◽  
Soil And Water

scholarly journals The generation of a mathematical model of the biogas production process from organic municipal solid waste

2020 ◽  
Vol 180 ◽  
pp. 02019 ◽  
Author(s):  
Marzhan Temirbekova ◽  
Madina Aliyarova ◽  
Iliya Iliev ◽  
Aliya Yelemanova ◽  
Saule Sagintayeva
Keyword(s):  
Mathematical Model ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Biogas Plant ◽  
Model Parameters ◽  
Biochemical Processes ◽  
Biogas Plants ◽  
The Mathematical Model

This paper justifies the efficiency of the biogas collection and utilization at the MSW (municipal solid waste) landfill in Almaty with the installation of several modern biogas plants. The optimal mode of processes occurring in a biogas plant is determined by computer generated simulations. Mathematical model parameters were identified to describe biochemical processes occurring in a biogas plant. Two approaches are used to resolve the mathematical model: the finite-difference method for solving the system of differential equations and simulation modeling by using the Any Logic package. A program is written in the algorithmic language C ++. Numerous calculations were carried out, the results of which are presented in curves and their qualitative picture is consistent with the ongoing processes. The created computer program allows to make a preliminary forecast of anaerobic fermentation occurring in the bioreactor depending on volume of the substrate, methane microorganisms and temperature conditions.

Mobile Lidar System for the Measurement of Gaseous Pollutants in Atmospheric Air

1979 ◽  
Author(s):  
C. Weitkamp ◽  
J. Harms ◽  
W. Lahmann ◽  
W. Michaelis
Keyword(s):  
Gaseous Pollutants ◽  
Lidar System ◽  
Atmospheric Air

scholarly journals Innovative Educational Program for Biogas Production Carried Out at University of Hradec Králové (CZ) and at University of Opole (PL)

2016 ◽  
Vol 21 (1-2) ◽  
pp. 61-74 ◽  
Author(s):  
Jan Loskot ◽  
Marek Smolík ◽  
Lidmila Hyšplerová ◽  
Karol Radocha ◽  
Jan Kříž ◽  
...  
Keyword(s):  
Labour Market ◽  
Agricultural Land ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Agricultural Waste ◽  
Real Life ◽  
Border Region ◽  
The European Union ◽  
Biogas Plants ◽  
The University

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.

Process enhancement for maximization of methane production in codigestion biogas plants

2016 ◽  
Vol 27 (3) ◽  
pp. 289-298 ◽  
Author(s):  
Andrea G Capodaglio ◽  
Ezio Ranieri ◽  
Vincenzo Torretta
Keyword(s):  
Design Methodology ◽  
Organic Waste ◽  
Anaerobic Fermentation ◽  
Limiting Factor ◽  
Technical Solution ◽  
Content Type ◽  
Biogas Plants ◽  
Traditional Process ◽  
Hydrolysis Of ◽  
Practical Implications

Purpose – The purpose of this paper is to develop improvements in the efficiency of the codigestion process. Design/methodology/approach – Two pilot plants, fed by different compositions of manure and industrial organic waste, generating biogas by mesophilic and thermophilic anaerobic fermentation, respectively, were analysed. Findings – It was observed that these processes do not commonly operate at maximum theoretical efficiency. Research limitations/implications – The limiting factor in the process was found to be the hydrolysis of the digested material. Practical implications – A technical solution had been suggested: implementing a secondary (after) storage phase which has the purpose of exploiting, by promoting enhanced hydrolysis, the substrate potential that remains undigested after the traditional process. Originality/value – The proposed configuration opens to original variations in the anaerobic digestion schemes.

scholarly journals The Impact Of Subsidy Policy On Biogas Plants In Slovakia

2015 ◽  
Vol 4 (1) ◽  
pp. 14-16 ◽  
Author(s):  
Ján Lajda ◽  
Zuzana Lajdová ◽  
Peter Bielik
Keyword(s):  
Energy Production ◽  
Anaerobic Fermentation ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Huge Amount ◽  
Subsidy Policy ◽  
Biogas Plants ◽  
The Impact ◽  
The Eu

Abstract Recently, renewable energy sources (RES) have become very popular all over the EU. Subsidy policies have provided huge amount of money flowing into the sector which were necessary for its development. In Slovakia, favourable legislation was one of triggers for building biogas plants using anaerobic fermentation for biogas and further electric energy production. This paper examines how subsidy policy has stimulated biogas sector over the years and the consequences arising from the legislation.

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