Potential of biogas production from swine manure supplemented with glycerine waste

Engenharia Agrícola

Odorico Konrad²  Fabio F. Koch¹  Marluce Lumi²  Jaqueline F. Tonetto²  Alberto Bezama¹ 

[1] ,UNIVATES Centro de Ciências Exatas e Tecnológicas Lajeado RS

关键词: biogas;    residual glycerin;    swine manure;    renewable energy;    biogás;    glicerina residual;    dejetos suínos;    energia renovável;   

DOI  :  10.1590/S0100-69162014000500004

来源: SciELO

【 摘 要 】

In this study, was studied the biogas generation from swine manure, using residual glycerine supplementation. The biogas production by digestion occurred in the anaerobic batch system under mesophilic conditions (35°C), with a hydraulic retention time of 48 days. The experiment was performed with 48 samples divided into four groups, from these, one was kept as a control (without glycerin) and the other three groups were respectively supplemented with residual glycerine in the percentage of 3%, 6% and 9% of the total volume of the samples. The volume of biogas was controlled by an automated system for reading in laboratory scale and the quality of the biogas (CH4) measured from a specific sensor. The results showed that the residual glycerine has high potential for biogas production, with increases of 124.95%, 156.98% and 197.83% in the groups 3%, 6% and 9%, respectively, relative to the sample control. However, very high organic loads can compromise the process of digestion affecting the quality of the biogas generated in relation to methane.

【 授权许可】

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