Relevant Biogas Substrate - Maize Silage vs Slaughterhouse Waste (original) (raw)

Conversion of Agricultural Waste (Maize) Into Energy Using Biogas Technology

American-Eurasian Journal of Agricultural and Environmental Sciences, 2019

The aim of the study was to examine the biogas and methane yield of maize silage, wastes in agricultural point of view and compare it to the biogas productivity of commonly used mixture of maize silage and mixed fodder with water. The experimental study was carried out into 2 parts. Firstly, the batch experiment was conducted in Mesophilic conditions (35°C), at five different hydraulic retention times (HRT): 6 Days, 11 Days, 20 Days, 29 Days and 41 Days. The results revealed that maize silage was generated the highest biogas yield of 537 mL /241 mL at the HRT of 6 days /41 days. Mixed fodder produced the highest biogas yield of 421 mL at the HRT of 6th days and the lowest one was 252 mL at the HRT of 20th days. Finally, the methane, carbon dioxide and hydrogen sulphide of biogas produced from maize silage and mixed fodder were analyzed using a gas chromatography. The results showed that biogas from maize silage precede the gas less than the mixed fodder. In the field level experimen...

New Trends in Substrates and Biogas Systems in Poland

Journal of Ecological Engineering

The amendment to the Polish Renewable Energy Act creates great opportunities for the development of the biogas market in Poland. Years of experience in biogas production in Western Europe and the development of biogas installations in Poland indicate the requirement to look for alternative substrates to those produced from dedicated crop production (mainly maize silage). Feasible solutions include the use of biodegradable waste from agriculture or industry as well as municipal landfill sites. The usage of these substrates in the methane fermentation process offers low cost, high biogas production and the safe management of biowaste. The arguments for using them in biogas installations are persuasive. This article presents new approaches of biogas plant installation solutions which allows for the effective fermentation of biowaste from animal and vegetable production, from the agro-food industry and from municipal waste.

The Possibility of Maize Straw Application as a Substrate for Biogas Plants

2017

The maize straw has a huge energetic potential. In Poland, the maize straw harvest can reach almost 5 million ha per year. With the good perspective for biogas market development in Poland, maize straw can become a good, reasonable substrate for biogas plant and avoid the conflict between food and biofuels production. This paper presents the potential for maize straw used as substrate for biogas plants. The results show that maize straw can be more effective for biogas productivity than maize silage. For 3 kinds of maize straw silage (from 4 analysed in total) the results of methane production were significantly higher (120.14 – 141.73 m/Mg FM) than in case of typical maize silage biomethane efficiency.

Processing of residues from biogas plants for energy purposes

Clean Technologies and Environmental Policy, 2014

Maize silage (Atletico, FAO 280) is being anaerobically fermented with cow manure (45°C, pH 7.1, hydraulic retention time 67 days) in a commercial scale (8,210 MWh electric power and 8,700 MWh heat power per year). The fermentation residues are being mechanically separated into the liquid fraction and the solid pulp (0.9 % hemicelluloses, 8.4 % cellulose, 5.7 % lignin). The solid pulp is being predryed and subsequently pyrolyzed. The pyrolysis takes place in the newly developed horizontal continuous pyrolysis reactor. The technology is run by the hot flue gases (410 ± 11°C) from the biogas combustion engine (383 m 3 of biogas per hour). The carbon powder obtained is being technologically and economically analyzed as a solid biofuel instead of biochar. The results obtained by standardized methods show that the new variety of products obtained outperforms many of the conventional solid biofuels not only in technological and environmental indicators, but also from the economical point of view.

Biogas production from corn silage and apple pomace

2017

The objective of the paper was to determine the amount and quality of the obtained biogas on the fermentation medium from the selected substrates of agri-food industry. The need to reduce the use of traditional energy and the growth of interest in RES is related to searching for alternative energy sources. To some extent they are to secure the national energy economy. Biogas installations are the only solution which may be used mainly due to possibilities related to resources. The use of various fermentation media will provide an opportunity to increase energy production and at the same time will give a chance to reduce waste from industry, which may be used as a medium for the process. Results of analysis for the set up fermentation medium (corn silage and apple pomace) prove that the highest generation of methane was 61% and the highest daily biogas yield from the chamber took place on the ninth day of the process.

Maize Straw as a Valuable Energetic Material for Biogas Plant Feeding

Materials

Maize has great potential, especially as a substrate for biofuels production. The aim of this paper is to analyze the possibility of usage in methane fermentation maize straw harvested in different weather conditions, which had an influence on different physical parameters, mainly the dry mass content. The research has shown that maize straw harvested in Central-Eastern Europe can have a broad spectrum of dry mass content, which is related to diverse weather conditions during autumn. However, independently from moisture content, maize straw can be a good (for more wet material) or very good (for more dried straw) substrate for the biogas plant. With the methane productivity reaching 201–207 m3/Mg of fresh mass, this material is a significantly better substrate than that typically used in Europe maize silage (approximately 105 m3/Mg FM). It was noted that the retention time for maize straw (36–42 days) is longer than in the case of maize silage (less than 30 days). However, this diff...

Biogas production from mediterranean crop silages

2011

Anaerobic digestion has proven to be an efficient way for the production of a renewable fuel. The aim of this work was to study the potential use of two crop silages, yellow lupine (Lupinus luteus L.) and oilseed radish (Raphanus sativus var. oleifera cv. Pegletta), for the production of biogas through the process of anaerobic digestion. The use of yellow lupine was due to its capacity for nitrogen fixation, reducing the fertilization needs for the succeeding crop cycle and reducing also the GHG emissions due to the fertilizer production and its field application. The utilization of the oilseed radish was due to its root exudates with nematicide effect, reducing the needs for soil disinfection, working as a biological weapon and also due to the effect on soil compaction of its large roots, working as a bio-driller. The yellow lupine gave rise to 400 m 3 of CH 4 .t-1 VS and the oilseed radish silage produced approximately 300 m 3 of CH 4. t-1 VS, proving to be good anaerobic substrates. The inoculum used for the batch digesters was sludge from an anaerobic digester of a WWTP.

The State of the Biogas Market in Poland

2020

Relevant Biogas Substrate - Maize Silage vs Slaughterhouse Waste (original) (raw)

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