scholarly journals An Economical Evaluation of Anaerobic Digestion Plants Fed with Organic Agro-Industrial Waste

Energies ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. 1165 ◽  
Author(s):  
Maurizio Carlini ◽  
Enrico Mosconi ◽  
Sonia Castellucci ◽  
Mauro Villarini ◽  
Andrea Colantoni
2016 ◽  
Vol 832 ◽  
pp. 55-62
Author(s):  
Ján Gaduš ◽  
Tomáš Giertl ◽  
Viera Kažimírová

In the paper experiments and theory of biogas production using industrial waste from paper production as a co-substrate are described. The main aim of the experiments was to evaluate the sensitivity and applicability of the biochemical conversion using the anaerobic digestion of the mixed biomass in the pilot fermentor (5 m3), where the mesophillic temperature was maintained. It was in parallel operation with a large scale fermentor (100 m3). The research was carried out at the biogas plant in Kolíňany, which is a demonstration facility of the Slovak University of Agriculture in Nitra. The experiments proved that the waste arising from the paper production can be used in case of its appropriate dosing as an input substrate for biogas production, and thus it can improve the economic balance of the biogas plant.


Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1224
Author(s):  
Nwabunwanne Nwokolo ◽  
Patrick Mukumba ◽  
KeChrist Obileke ◽  
Matthew Enebe

Anaerobic digestion is an efficient technology for a sustainable conversion of various organic wastes such as animal manure, municipal solid waste, agricultural residues and industrial waste into biogas. This technology offers a unique set of benefits, some of which include a good waste management technique, enhancement in the ecology of rural areas, improvement in health through a decrease of pathogens and optimization of the energy consumption of communities. The biogas produced through anaerobic digestion varies in composition, but it consists mainly of carbon dioxide methane together with a low quantity of trace gases. The variation in biogas composition are dependent on some factors namely the substrate type being digested, pH, operating temperature, organic loading rate, hydraulic retention time and digester design. However, the type of substrate used is of greater interest due to the direct dependency of microorganism activities on the nutritional composition of the substrate. Therefore, the aim of this review study is to provide a detailed analysis of the various types of organic wastes that have been used as a substrate for the sustainable production of biogas. Biogas formation from various substrates reported in the literature were investigated, an analysis and characterization of these substrates provided the pro and cons associated with each substrate. The findings obtained showed that the methane yield for all animal manure varied from 157 to 500 mL/gVS with goat and pig manure superseding the other animal manure whereas lignocellulose biomass varied from 160 to 212 mL/gVS. In addition, organic municipal solid waste and industrial waste showed methane yield in the ranges of 143–516 mL/gVS and 25–429 mL/gVS respectively. These variations in methane yield are primarily attributed to the nutritional composition of the various substrates.


2015 ◽  
Vol 29 (7) ◽  
pp. 4052-4057 ◽  
Author(s):  
Lydia Rachbauer ◽  
Wolfgang Gabauer ◽  
Stefanie Scheidl ◽  
Markus Ortner ◽  
Werner Fuchs ◽  
...  

2018 ◽  
Vol 12 (5) ◽  
pp. 713-723 ◽  
Author(s):  
Carlos Benito-Mora ◽  
Antonio J Alonso-Contreras ◽  
Dolores Garvi ◽  
Laura Pozo-Morales ◽  
Maria C Morón ◽  
...  

1997 ◽  
Vol 123 (11) ◽  
pp. 1087-1092 ◽  
Author(s):  
Jan A. Oleszkiewicz ◽  
Hector M. Poggi-Varaldo

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
T Y TEH ◽  
Hong-Giang Hoang ◽  
Min-Hao Wu ◽  
Kf Chen ◽  
Yp Peng

One of the main sources of water pollution in Taiwan is piggery waste. With the major pollutants such as odors, BOD, TN and TS, waste from the piggery industry has been seriously affecting the environment in Taiwan. However, if this amount of waste is properly treated, it will bring great benefits and can be considered as a resource. Generally, wastewater from the piggery industry is treated in three stages: liquid soil, anaerobic digestion and then aerobic treatment. However, this process is difficult due to high cost and difficult operation. Therefore, a feasible method was to establish a centralized methane production facility for the treatment of piggery industrial waste. The products after treated like methane and fertilize are utilized as clean and environmentally friendly products. Methane can be used for cooking or electricity generation. This is a new direction suitable for sustainable development.


Author(s):  
Maria V. MORAR ◽  
H. OECHSNER ◽  
Zoe DANCEA ◽  
Sigrid KUSCH

Biowaste are a permanent subject of concern for environmental integrity and maintenance and human and animal health, due to their very high organic load and potential risk of pathogenic contamination. The paper presents briefly the process of anaerobic digestion as a treatment possibility for hygenisation and organic matter decomposition of biowaste (liquid manure and agro-industrial waste) with production of the energy rich biogas and of the digestion products which can be use as fertilizer. There are presented the hygienisation possibilities of the liquid manure and waste from agro-industry and the EU regulations to be considered at biogas plants construction and approval.


Author(s):  
Andrade Robayo Vicente Ronaldo Ponce Rochina ◽  
Mirian Hortencia Chimbo Guano ◽  
Geomayra Alexandra Carlos Jacome

Biogas is considered as a gaseous tributary of the anaerobic digestion of agro-industrial waste, a boiler, it can be burned in combustion engines to generate electricity and heat through cogeneration. Biodigesters responsible for producing energy with a content of 1 m3 of biogas (60% CH4 and 40% CO2) equivalent to 6 kWh / m3. It undergoes a purification its composition will depend not only on the technology used for the process but also on the treated substrate. Its methane composition varies between 50 and 70% and present between 30 and 40% CO2 and less than 5% hydrogen (H2) and other gases. The calorific value of biogas is associated with the composition of the methane it has. Biogas is a very versatile source of energy, it can be transformed into thermal energy through the use of process eliminating hydrogen sulfide and other contaminants from the membranes, it can be used as fuel, purifying and adding the necessary additives, it can be transformed into biomethane, a compound with characteristics very similar to natural gas. Biogas can be used as an electricity generator or as a heat producer if both sources of energy are generated, we speak of a cogeneration process, the electricity produced by generation can be injected into the electricity grid or consumed by the industry that generates the waste.


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