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Influence of organic loading rate on methane production in a CSTR from physicochemical sludge generated in a poultry slaughterhouse
The influence of the increase of the organic loading rate (OLR) on methane production in a continuous stirred-tank reactor (CSTR) from physicochemical sludge generated in a poultry slaughterhouse was evaluated. Total solid (TS) to obtain OLR of 1, 5, 10 and 15 g VS L−1 day−1, with hydraulic retention times of 29, 6, 6 and 4, respectively, were conditioned. The results showed a decrease in pH levels and an increase in the theoretical volatile fatty acids (VFA). While the yield of methane production decreased from 0.48 to 0.10 LCH4/g VSremoved, respectively, the OLR-10 managed on average 38% removal of volatile solids (VS) and a yield biogas production of 0.81 Lbiogas g−1 VSremoved and 1.35 L day−1. This suggests that the OLR increases in an anaerobic system from physicochemical sludge only inhibits the methanogenic metabolism, because there is still substrate consumption and biogas production.
Influence of organic loading rate on methane production in a CSTR from physicochemical sludge generated in a poultry slaughterhouse
The influence of the increase of the organic loading rate (OLR) on methane production in a continuous stirred-tank reactor (CSTR) from physicochemical sludge generated in a poultry slaughterhouse was evaluated. Total solid (TS) to obtain OLR of 1, 5, 10 and 15 g VS L−1 day−1, with hydraulic retention times of 29, 6, 6 and 4, respectively, were conditioned. The results showed a decrease in pH levels and an increase in the theoretical volatile fatty acids (VFA). While the yield of methane production decreased from 0.48 to 0.10 LCH4/g VSremoved, respectively, the OLR-10 managed on average 38% removal of volatile solids (VS) and a yield biogas production of 0.81 Lbiogas g−1 VSremoved and 1.35 L day−1. This suggests that the OLR increases in an anaerobic system from physicochemical sludge only inhibits the methanogenic metabolism, because there is still substrate consumption and biogas production.
Influence of organic loading rate on methane production in a CSTR from physicochemical sludge generated in a poultry slaughterhouse
López-Escobar, Luis A. (author) / Martínez-Hernández, Sergio (author) / Corte-Cano, Grisel (author) / Méndez-Contreras, Juan M. (author)
Journal of Environmental Science and Health, Part A ; 49 ; 1710-1717
2014-12-06
8 pages
Article (Journal)
Electronic Resource
English
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