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Swine effluent treatment using anaerobic digestion at different loading rates REA
Amaral,André C. do; Kunz,Airton; Steinmetz,Ricardo L. R.; Cantelli,Fábio; Scussiato,Lucas A.; Justi,Karin C..
The industrial swine production is characterized by generation of significant effluent amounts that require treatment. The most adopted practices by Brazilian swine farmers have been wastewater storage in lagoons and its subsequent use as a biofertilizer. Nutrient accumulation in soil and water creates the need for an effective management of these residues. The anaerobic digestion process is an important alternative and low-cost treatment for organic matter reduction. However, its efficiency is limited by the digester capacity of solid degradation, especially at low hydraulic retention times. Thus, the present study aimed to verify the behavior of an upflow anaerobic digester by increasing the organic loading rate. This was accomplished in three stages...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydraulic retention time; Biogas production; Animal wastewater.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300019
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Produção de biogás a partir de resíduos orgânicos de centrais de abastecimento de hortifrutigranjeiros. Infoteca-e
LEITAO, R. C.; BARCELOS, W. M..
Uma alternativa mais sustentável para o reaproveitamento racional dos resíduos de centrais de abastecimento de hortifrutigranjeiros é a sua conversão em biogás, gerando energia e adubo orgânico, via processo de digestão anaeróbia. A digestão anaeróbia já é um processo bem conhecido. No entanto, normalmente são utilizados reatores de baixa carga orgânica volumétrica. Existem sistemas de alta taxa que podem ser empregados para a digestão desses resíduos, como, por exemplo, aqueles que empregam o processo de metanização seca. Este trabalho tem como objetivo apresentar uma breve revisão sobre as tecnologias para produção de biogás usadas no Brasil e propor uma alternativa de sistema de reatores anaeróbios para tratamento dos resíduos orgânicos de centrais de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Resíduos orgânicos; Produção de biogás; Digestão anaeróbica; Metanização seca; Hortifrutigranjeiro; Biogas production; Digestion anaerobic; Dry methanization; Organic wastes; Fresh produce.
Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136856
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Effects of full-scale substrate pretreatment with a cross-flow grinder on biogas production CIGR Journal
Mönch-Tegeder, Matthias; Lemmer, Andreas; Jungbluth, Thomas; Oechsner, Hans.
The enhancement of the degradation rate of energy crops, agricultural residues and manure by different lab scale pretreatment pathways is shown in previous studies.  In general, the pretreatments resulted in higher degradation efficiencies and an increase in methane yield for lignocellulosic and fibrous biomass.  The major drawback of most of the different pretreatment methods is that either they are not feasible for application in practice or the high energy demand makes them economically inefficient.  The aim of this study was to evaluate the effects of a full-scale mechanical pretreatment with a cross-flow grinder on commonly used energy crops (maize silage, grass silage and rye grain silage) and horse manure. Furthermore, the optimal treatment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Biogas production; Mechanical pretreatment; Lignocellulosic materials; Horse manure.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2927
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Novel system for demand-oriented biogas production from sugar beet silage effluent CIGR Journal
Kumanowska, Elzbieta.
In recent years, the concept of flexible electricity production from renewable energy sources has gained popularity in the field of renewable energy supply. This study investigated a new system for flexible biogas production in praxis scale biogas plants involving new sugar beet storage processes aiming on the use of produced sugar beet silage effluent. Both processes showed successful ensiling with moderate losses compared to conventional sugar beet storage processes. A clear advantage was found in the use of washed and chopped sugar beet for silage effluent production. Thanks to the high COD-content and high digestibility, the produced silage effluent was applicable for point feeding. The system’s response, observed as an increase in gas production, was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Biogas production; Full-scale; Demand-oriented; Sugar beet silage effluent; Point feeding.
Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5471
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