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| Formato: | Artículo científico |
| Lenguaje: | en |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2016
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=179749533008 |
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- The Addition of Hatchery Liquid Waste to Dairy Manure Improves Anaerobic Digestion WRT Lopes ACA Orrico RG Garcia MAP Orrico Jr DM Manarelli AF Fava IA Nääs Agrociencias inoculation Fowl cholera pathogenicity index Pasteurella multocida The objective of this study was to determine the optimal inclusion level of liquid egg hatchery waste for the anaerobic co-digestion of dairy cattle manure. A completely randomized experimental was applied, with seven treatments (liquid hatchery waste to cattle manure ratios of0: 100, 5:95, 10:90, 15:85, 20:80, 25:75 and 30:70), with five replicates (batch digester model) each. The evaluated variables were disappearance of total solids (TS), volatile solids (VS), and neutral detergent fiber (NDF), and specific production of biogas and of methane. Maximum TS and VS disappearance of 41.3% and 49.6%, were obtained at 15.5% and 16.0% liquid hatchery waste inclusion levels. The addition of 22.3% liquid hatchery considerably reduced NDF substrate content (53.2%). Maximum specific biogas production was obtained with 17% liquid hatchery waste, with the addition of 181.7 and 229.5 L kg-1TS and VS, respectively. The highest methane production, at 120.1 and 151.8 L CH4 kg-1TS and VS, was obtained with the inclusion of 17.5 and 18.0% liquid hatchery waste, respectively. The addition of liquid hatchery waste atratios of up to 15.5%in co-digestion with cattle manure reduced solid and fiber levels in the effluent, and improved biogas and methane production. 2016 artículo científico 1516-635X https://www.redalyc.org/articulo.oa?id=179749533008 en http://www.redalyc.org/revista.oa?id=1797 Revista Brasileira de Ciência Avícola application/pdf Fundação APINCO de Ciência e Tecnologia Avícolas Revista Brasileira de Ciência Avícola (Brasil) Num.2 Vol.18