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| Umetsu, K; Kikuchi, S; Nishida, T; Kida, K; Ihara, I; Yamashiro, T; 梅津, 一孝; 西田, 武弘; 木田, 克弥. |
| The paper deals with the hygienic advantages of sanitation to treat dairy manure in full-scale biogas plants. Slurry samples were collected from two thermophilic biogas plants (55ºC) and two mesophilic biogas plants (38ºC) in Hokkaido, Japan. The detectable number of Coli-aerogenes group and Enterococcus in the slurries after anaerobic digestion could not be found in both thermophilic biogas plants. In both mesophilic biogas plants, however, the viable numbers of Coli-aerogenes group and Enterococcus were detected in the slurries even after anaerobic digestion. The mean decimation reduction time (T90) values of Coli-aerogenes group and Enterococcus in the slurries during mesophilic digestion were 13.3 d and 16.7 d, respectively. |
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Palavras-chave: Biogas plant; Pathogenic bacteria; Coli-aerogenes group; Enterococcus. |
| Ano: 2009 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2732 |
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