Enhancing the analytical capacity for biogas development in Brazil: assessment of an original measurement system for low biogas flow rates out of agricultural biomass residues

Konrad, Odorico; Bezama, Alberto; Prade, Thomas; Backes, Gladis Maria; Oechsner, Hans

doi:10.1590/1809-4430-eng.agric.v36n5p792-798/2016

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…The reactors were incubated in anaerobic conditions at 35 degrees Celsius (°C). Biogas measurements were performed according to procedures described by Konrad, Bezama, Prade, Backes, and Oechsner (). Methane content as a percentage of the biogas was measured daily with a specific methane measurement sensor (Advanced Gasmitter, manufactured by PRONOVA Analysentechnik GmbH & Co, Berlin, Germany).…”

Section: Methodsmentioning

confidence: 99%

Biogas production from slaughterhouse wastewaters and use of biofertilizer obtained for biodegradation of aromatic hydrocarbons

Marder

Konrad

Ilha

et al. 2019

Environmental Quality Mgmt

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The anaerobic digestion of industrial wastes produces a biogas that is an alternative to the use of fossil fuels for energy production. At the end of this process, the stabilized biomass presents high levels of nutrients, which can be used both as biofertilizers in agriculture and for the biodegradation of contaminants in the soil through improvement of the microbiota. Thus, this study aimed to evaluate biogas production by industrial wastes and to use the biofertilizer for the bioremediation of soils previously contaminated with gasoline. The biomass (420 mL) generated approximately 10 liters (L) of methane and 3 L of other gases. Anaerobic incubation reduced total and volatile solids, as well as biochemical oxygen demand, chemical oxygen demand, and the carbon and nitrogen contents of the biomass. The bioremediation experiment showed that 15 days after contamination with gasoline, the addition of the biofertilizer improved the degradation efficiency of monoaromatic hydrocarbons; however, the degradation of polyaromatic hydrocarbons was less time efficient. So, we conclude that the anaerobic incubation of industrial wastes generates a high amount of biogas, and that biofertilizer deposition into contaminated soil does not affect the efficiency of the degradation of aromatic hydrocarbons after 30 days. Novelty or significance: Anaerobic incubation of industrial wastes generates a high calorific value gas, which can be used as an alternative source of energy. And, the resulting biomass, called biofertilizer, can be used to remediate soils contaminated with hydrocarbons.

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Section: Methodsmentioning

confidence: 99%

Biogas production from slaughterhouse wastewaters and use of biofertilizer obtained for biodegradation of aromatic hydrocarbons

Marder

Konrad

Ilha

et al. 2019

Environmental Quality Mgmt

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“…The reactors containing the samples were kept at a mesophilic temperature (35°C) and connected to an automated biogas measurement system described by Konrad, Bezama, Prade, Backes, and Oechsner (). The quantity of biogas generated from the samples in the reactors was monitored daily through this system and the collected data exported to spreadsheets (data control; Exhibit ).…”

Section: Methodsmentioning

confidence: 99%

Biogas generation related to carbon removal from anaerobic co‐digestion of sludge, blood, and swine manure combined in different proportions: Production of biogas by anaerobic co‐digestion

Hasan

Marder

Hickmann

et al. 2018

Environmental Quality Mgmt

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This study evaluated, at a laboratory scale, samples composed of wastewater treatment sludge, blood, and swine manure, which were subjected to the process of anaerobic co-digestion. The goal of the study is to identify the reduction of organic loads through the removal of available carbon and its conversion to biogas. The results showed variation in hydraulic retention time, and that the total average volumes of biogas generated in 1-liter (L) reactors filled with 600 milliliters (ml) of samples, ranged from 3.37 to 18.76 L, with percentages of methane ranging between 57.9% and 71.1%. The largest volumes of biogas resulted from blends with lower percentages of swine manure, where the initial amounts of carbon in milligrams per liter (mg/L) were larger within the samples. All of the blends submitted to anaerobic treatment showed reductions in carbon content, and consequently, in chemical and biochemical oxygen demand, demonstrating that the efficiency of biodigesters in the treatment of waste is variable and related to physical-chemical factors, such as the amount of carbon available. K E Y W O R D Smethane, organic matter, renewable energy

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“…A quantificação de biogás em escala laboratorial vem sendo comumente realizada a partir da dinâmica do deslocamento de fluidos, já que apresenta baixo custo, simplicidade e confiabilidade para quantificar baixas taxas de fluxo (GIRARDI NETO, 2014;KONRAD et al, 2016;MARTÍNEZ-SIBAJA et al, 2011).…”

Section: Purificação E Quantificação De Biogásunclassified

Produção de metano via codigestão anaeróbia de efluentes das indústrias de arroz parboilizado e laticínios

Nadaleti

Lourenço

Schoeler

et al. 2019

RICA

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As indústrias de processamento de arroz e laticínios geram efluentes com grande potencial poluidor que requerem modelos alternativos de tratamento. Nesse sentido, a codigestão anaeróbia surge como processo de tratamento preliminar capaz de fornecer energia limpa durante seus processos de fermentação. O objetivo deste estudo, foi avaliar a melhor proporção de mistura dos substratos e inóculo para elevar a eficiência da produção de metano via codigestão anaeróbia com lodo da indústria de arroz (inóculo) e efluente das indústrias de laticínios e arroz parboilizado (substratos), gerados no Rio Grande do Sul, por meio de delineamento experimental com arranjo fatorial 2³, quantificando o metano gerado, através de um sistema desenvolvido com base no deslocamento de fluidos, e análises pH e Demanda Química de Oxigênio. O experimento ocorreu em batelada, à 35°C por 252 horas. A maior produção de metano, 1,50 dm³, ocorreu no biodigestor que recebeu 40% de efluente de arroz, 20% efluente de laticínios e 30% de inóculo. Quanto a remoção de Demanda Química de Oxigênio (DQO), os biodigestores que removeram maiores cargas de DQO foram, em sua maioria, os mesmos que produziram maiores volumes de metano, com remoções de até 76,74%. Todos os pontos apresentaram acidez em suas amostras de entrada e neutralidade nas de saída. Quanto ao sistema de quantificação de gases desenvolvido no estudo, o mesmo apresentou alta eficácia, com baixo desvio padrão e coeficiente de variação.

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Enhancing the analytical capacity for biogas development in Brazil: assessment of an original measurement system for low biogas flow rates out of agricultural biomass residues

Cited by 13 publications

References 11 publications

Biogas production from slaughterhouse wastewaters and use of biofertilizer obtained for biodegradation of aromatic hydrocarbons

Biogas production from slaughterhouse wastewaters and use of biofertilizer obtained for biodegradation of aromatic hydrocarbons

Biogas generation related to carbon removal from anaerobic co‐digestion of sludge, blood, and swine manure combined in different proportions: Production of biogas by anaerobic co‐digestion

Produção de metano via codigestão anaeróbia de efluentes das indústrias de arroz parboilizado e laticínios

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