Quantification and characterization of the production of biogas from blends of agro-industrial wastes in a large-scale demonstration plant.
In: Acta Scientiarum: Technology, Jg. 38 (2016-10-01), Heft 4, S. 415-421
academicJournal
Zugriff:
The use of energy contained in biogas is an interesting alternative to reconcile renewable electric power generation to environmental sanitation. Among the technologies used for recovering energy from biomass, the anaerobic digestion demonstrates ability to treat solid waste and effluents. This research work aims to analyze the influence of physical and chemical factors on the performance of anaerobic digestion reactors and to perform the characterization of biogas in order to assess their quality. The substrate evaluated is the mixture of liquid waste coming from different industrial processes and poultry manure. The characterization of CH 4 , CO 2 , H 2 S and O 2 was performed daily in two reactors, R1 and R2, for a period of three months, and the physical and chemical parameters were analyzed biweekly. The parameters analyzed are carbon (C), nitrogen (N), biochemical oxygen demand (BOD), pH, total (TS), volatiles (VS) and fixed solids (FS). Among the results, stands out an average removal of 76% in relation to BOD and H 2 S concentration of 156.01 for R1, and of 91.64 ppm for R2, and the CH4:CO2 inverse relationship of 3.15 for R1 and 2.98 for R2, during the monitoring period. [ABSTRACT FROM AUTHOR]
O uso da energia contida no biogás é uma alternativa interessante para conciliar a geração de energia elétrica renovável ao saneamento ambiental. Entre as tecnologias utilizadas para a recuperação de energia, a partir de biomassa, a digestão anaeróbia demonstra a capacidade de tratamento dos resíduos sólidos e efluentes. Este trabalho de pesquisa tem como objetivo analisar a influência de fatores físico-químicos sobre o desempenho de reatores anaeróbios e realizar a caracterização do biogás, a fim de avaliar a sua qualidade. O substrato avaliado é uma mistura de resíduos líquidos provenientes de diferentes processos industriais e dejetos gerados por aves poedeiras. A caracterização dos gases CH4, CO 2 , H 2 S e O 2 foi realizada diariamente em dois reatores (R1 e R2) por um período de três meses, e os parâmetros físico-químicos foram analisados quinzenalmente. Os parâmetros físico-químicos analisados foram carbono (C), nitrogênio (N), demanda bioquímica de oxigênio (DBO), pH, sólidos totais (ST), voláteis (VS) e fixos (FS). Entre os resultados destacam-se a remoção média de 76% em relação a DBO, concentração de H 2 S de 156.01 para o R1 e de 91,64 ppm para o R2 e relação inversa entre CH 4 :CO 2 , sendo esta de 3,15 para R1 e 2,98 para R2. [ABSTRACT FROM AUTHOR]
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Titel: |
Quantification and characterization of the production of biogas from blends of agro-industrial wastes in a large-scale demonstration plant.
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Autor/in / Beteiligte Person: | Konrad, Odorico ; Akwa, João Vicente ; Fernandes Koch, Fábio ; Lumi, Marluce ; Tonetto, Jaqueline |
Zeitschrift: | Acta Scientiarum: Technology, Jg. 38 (2016-10-01), Heft 4, S. 415-421 |
Veröffentlichung: | 2016 |
Medientyp: | academicJournal |
ISSN: | 1806-2563 (print) |
DOI: | 10.4025/actascitechnol.v38i4.28649 |
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