SciELO - Scientific Electronic Library Online

 
vol.28 número3Análisis de Accesibilidad a Depósitos de Residuos Sólidos: El Caso de las Escombreras en la Ciudad de Manizales-ColombiaEstudio del Comportamiento Fluido-Dinámico de un Agitador a Escala Reducida Mediante Simulación Numérica índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Información tecnológica

versão On-line ISSN 0718-0764

Resumo

CAMACHO, Ricardo; VILLADA, Héctor S  e  HOYOS, José L. Evaluation of Cow Manure as Inoculum in the Thermophilic Anaerobic Digestion of Municipal Solid Waste. Inf. tecnol. [online]. 2017, vol.28, n.3, pp.29-36. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642017000300004.

In this study, cow manure was evaluated as inoculum in the star-up of the dry thermophilic anaerobic digestion process (DTAD) of municipal solid waste (MSW). Start-up is the more complex stage in anaerobic digestion in which an appropriate and available inoculum is required. The start-up was separated in three stages: (1) inoculum acclimation, (2) waste incorporation and (3) re-inoculation. Methane percentages revealed a high methanogenic activity and rapid inoculum acclimation to the thermophilic range. During the stage 2 high VFA and VFA/Alk was observed. The pH decreases and adjustment is continuously required. In the stage 3, the pH reaches a value higher than 7.47 but it tends to decrease rapidly. On the other hand VFA and VFA/Alk reach 12,58 g/ml y 0,83 respectively. The evaluated parameters suggest that the substrate/inoculum mixture suffered an excessive VFA accumulation that shows that the waste required higher inoculation levels.

Palavras-chave : solid waste; anaerobic digestion; thermophilic; cow manure; start-up.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons