Parâmetros de dimensionamento para biodigestores batelada operados com dejetos de vacas leiteiras com e sem uso de inóculo

Xavier, Cristiane de Almeida Neves; Lucas, Jorge de

doi:10.1590/s0100-69162010000200003

Cited by 29 publications

(33 citation statements)

References 15 publications

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“…Larger biogas production can be achieved with the addition of inoculum from the beginning of the anaerobic biodigestion process. According to a study by Xavier & Lucas Junior (2010), higher biogas production potentials were obtained with the use of 40% of inoculum in biodigesters using dairy cows manure.…”

Section: Resultsmentioning

confidence: 99%

“…The authors observed a biogas average production of 3L/kg of substrate, higher than that observed in the present study. Xavier & Lucas Junior (2010) evaluated the biogas production and the reduction of volatile solids from the addition of inoculum in the anaerobic biodigestion of recycled waste of dairy cows in batch biodigesters with a capacity of 60 L. The authors observed a biogas production of 70 L/kg of substrate with the hydraulic retention time of 45 days. According to the authors, the use of inoculum is a method used to increase biogas production, which consists in adding to the material to be digested, a material that has already undergone the biodigestion process, providing an additional population of microorganisms.…”

Section: Resultsmentioning

confidence: 99%

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Biogas Production From Dairy Cattle Manure, Under Organic and Conventional Production Systems

et al. 2017

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ABSTRACT:The purpose of this study was to evaluate the production of biogas, as well as the biogas production potential resulting from the anaerobic biodigestion of dairy cattle manure under organic (CMOS) and conventional (CMCS) production system. Also, the concentration of thermotolerant coliforms was evaluated after the biodigestion process. Therefore, bench biodigesters prototypes were supplied with CMOS and CMCS for 30 weeks. The experimental design was completely randomized with four repetitions for each treatment. Analysis of total solids (TS), volatile solids (VS), biogas production potential, most probable number (MPN) of thermotolerant coliforms were made. The cumulative biogas production was 6.18 L and 11.15 L, when using the CMOS and CMCS, respectively. Average biogas production potential of CMCS were 0.2; 2.6 and 2.9 L kg -1 substrate, ST and SV added, respectively and for CMOS 0.1; 1.4 and 1.9 L kg -1 substrate, ST and SV added, respectively. After the anaerobic biodigestion process of CMOS and CMCS, it was observed that the concentrations of thermotolerant coliforms were well below than the limit established by law.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Biogas Production From Dairy Cattle Manure, Under Organic and Conventional Production Systems

et al. 2017

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“…Inoculum consisted of iodine, derived from the municipal sewage treatment system, with approximately 4% total solids. The use of 40% (m m -1 ) inoculum of the total sample volume was based on studies by Xavier and Lucas Jr. (2010).…”

Section: Methodsmentioning

confidence: 99%

<b>Co-digestion of crude glycerin associated with cattle manure in biogas production in the State of Paraná, Brazil

et al. 2017

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ABSTRACT. The addition of different concentrations of crude glycerin, associated with cattle manure, on the volumetric production of biogas is analyzed. Different concentrations of crude glycerin (2, 4 and 6% m m -1 ) were added as supplement in anaerobic co-digestion of dairy cattle waste, in laboratory batch biodigesters (3.5 L usable volume). The biodigesters were operated under mesophilic conditions (30ºC), with 30-day hydraulic retention time (HRT). Total solids (TS), volatile solids (VS) and chemical oxygen demand (COD) were analyzed to determine the efficiency of the process in the removal of organic matter and its effect on biogas production. The addition of 4% glycerin provided a larger production of biogas, approximately 9.307 mL. The efficiency in COD removal decreased in treatments with glycerin, with highest reduction (68%) in the control treatment. There was a 90 and 118% increase respectively for Gli4 and Gli6% treatments. VS reductions Gly 0, Gly 2, Gly 4 and Gly 6% treatments were 18.17, 61.60, 24.36 and 44.83%, for the respective treatments.Keywords: bio-digestion, cattle manure, biogas, crude glycerin, biodiesel.Avaliação da codigestão de glicerina associada a esterco bovino para produção de biogás no Estado do Paraná, Brasil RESUMO. O objetivo do trabalho foi avaliar o efeito da adição de diferentes concentrações de glicerina bruta associada com esterco bovino, sobre a produção volumétrica de biogás. A adição de diferentes concentrações de glicerina bruta (2, 4 e 6% m m -1 ) foi utilizada como suplemento na codigestão anaeróbia de dejetos bovinos de leite, em biodigestores laboratoriais de batelada (3,5 L de volume útil). Os biodigestores foram operados em condições mesofílicas (30ºC), com tempo de retenção hidráulica (TRH) de 30 dias. Foram analisados os sólidos totais (ST), sólidos voláteis (SV) e demanda química de oxigênio (DQO), a fim de determinar a eficiência do processo na remoção da matéria orgânica e seu efeito na produção de biogás. A adição de 4% de glicerina resultou na maior produção de biogás, cerca de 9,307 mL. A eficiência na remoção de DQO diminuiu nos tratamentos com adição de glicerina, sendo a maior redução no tratamento controle, de 68%. Nos demais tratamentos houve um aumento de 90 e 118% para os tratamentos Gli 4 e Gli 6% respectivamente. As reduções de SV para os tratamentos Gli 0, Gli 2, Gli 4 e Gli 6%, foram de 18,17, 61,60, 24,36 e de 44,83%, para os respectivos tratamentos.Palavras-chave: biodigestão, dejetos bovinos, biogás, glicerina bruta, biodiesel.

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“…0.254 and 0.627 m 3 ·kg·VS added -1 (Orrico et al, 2004;Xavier et al, 2010;Sakar et al, 2009;Miranda et al, 2012), respectively. Thus, manipueira incremented biogas yield in 26 ruminants and 31 % when co-digested with sheep and swine manure, respectively.…”

Section: Substratesmentioning

confidence: 99%

Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira

et al. 2016

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sUMMAryThe aim of this study was to evaluate ruminant and monogastric animal manure co-digested with 10 % of manipueira through process monitoring parameters and biogas production. In this study, eight semi-continuous digesters, with a capacity of 7.8 liters of substrate in fermentation, operated with 30 days of hydraulic retention time, were used. Monitoring analyses were performed in order to assess: pH, total ammonia nitrogen (TAN) concentration, partial alkalinity (PA), content and biogas yield (m . The highest biogas yield was obtained for anaerobic co-digestion of swine manure with 10 % (volume/ volume) of manipueira.Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira inforMAtion Cronología del artículo.Recibido

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Parâmetros de dimensionamento para biodigestores batelada operados com dejetos de vacas leiteiras com e sem uso de inóculo

Cited by 29 publications

References 15 publications

Biogas Production From Dairy Cattle Manure, Under Organic and Conventional Production Systems

Biogas Production From Dairy Cattle Manure, Under Organic and Conventional Production Systems

<b>Co-digestion of crude glycerin associated with cattle manure in biogas production in the State of Paraná, Brazil

Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira

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