Adição de óleo e lipase sobre a biodigestão anaeróbia de dejetos suínos

Rodrigues, João Paulo; Orrico, Ana Carolina Amorim; Orrico, Marco Antônio Previdelli; Seno, Leonardo de Oliveira; Araújo, Laura Costa de; Sunada, Natália da Silva

doi:10.1590/s0103-84782014000300025

Cited by 12 publications

(8 citation statements)

References 6 publications

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“…It is presented as an alternative for the treatment and energy recycling of the nutrients contained in animal waste and vegetal residues, reducing the polluting potential and sanitary risks, besides promoting the generation of biogas and biofertilizer (Rodrigues et al, 2014b). Camila F. Matos, Juliana L. Paes, Érika F. M. Pinheiro, et al Eng.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

et al. 2017

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“…Studies aiming at the mathematical modeling of physicochemical parameters demonstrated that the influence of different types of inoculum followed a decreasing prediction model on the reductions in pH, TS, VS, and COD (Rodrigues et al, 2014) and increasing on VS and COD (Leite et al, 2001;Lopes et al, 2004). Thus, mathematical modeling does not corroborate the presented results with high efficiency in reducing TS, VS, and COD obtained with a 20% inoculum proportion for CPS and OPS.…”

Section: Qualitative Evaluation Of the Affluent And Effluentmentioning

confidence: 79%

Use of Inoculum in Biodigesters With Cattle Manure Under Conventional and Organic Production Systems

et al. 2020

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One way of making livestock farming a more sustainable practice is to raise cattle organically. However, regardless of the production system, there is a generation of residues that can be converted into energy resources using biodigesters. This study aimed to evaluate the addition of inoculum in the anaerobic biodigestion of cattle manure under organic (OPS) and conventional production systems (CPS) in an Indian model biodigester. The physicochemical (pH, EC, TS, VS, DBO, and COD) and microbiological characteristics of the affluent and effluent, as well as the production, potential, and qualitative characteristics of the biogas, were evaluated. CPS showed higher reductions in TS, VS, BOD, and COD than OPS, with the highest effect of biogas production. Regarding the effect of inoculum addition, the treatment with 20% inoculum provided in both production systems high acceleration at the starting point of biogas production and increased energy potential, as well as high reductions in VS, BOD, and COD. Thus, there is a need to use 20% inoculum for high biogas productivity, regardless of the production system.

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“…O volume de biogás que poderá ser produzido está relacionado a diferentes aspectos, como a qualidade do substrato envolvido e o grau de diluição (BARROS et al, 2009;RODRIGUES et al, 2014). O poder calorífico da mistura do biogás está relacionado à concentração de metano na mistura final, ou seja, quanto maior a concentração de metano na mistura final, maiores serão as possibilidades de utilização como fonte energética (SCHIAVON MAIA et al, 2014).…”

Section: Biodigestão Anaeróbiaunclassified

Tratamento Do Dejeto De Suíno Por Biodigestão Anaeróbia

Costa¹,

Soto²

2018

Rev. Agro. Amb.

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A suinocultura é uma atividade econômica de destaque no agronegócio brasileiro. Entretanto, a geração de efluentes em grande quantidade com potencial de poluição elevado caracteriza um obstáculo para o crescimento desta atividade. Diante deste cenário, este trabalho objetivou contextualizar a importância ambiental, econômica e sanitária do tratamento das dejeções suinícolas e descrever a tecnologia da biodigestão anaeróbia aplicada neste âmbito. A adoção da biodigestão anaeróbia se apresenta como uma alternativa eficiente para o tratamento destes dejetos. O uso de biodigestores promove um ambiente com condições anaeróbias que possibilita o desenvolvimento de bactérias hidrolíticas, acidogênicas, acetogênicas e metanogênicas que promovem a degradação da matéria orgânica e a reciclagem de nutrientes culminando na geração de subprodutos de valor agregado: biogás e biofertilizante, com desdobramentos ambientais, sanitários, econômicos e sociais positivos.

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Adição de óleo e lipase sobre a biodigestão anaeróbia de dejetos suínos

Cited by 12 publications

References 6 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

Use of Inoculum in Biodigesters With Cattle Manure Under Conventional and Organic Production Systems

Tratamento Do Dejeto De Suíno Por Biodigestão Anaeróbia

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