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ARS Home » Midwest Area » Bowling Green, Kentucky » Food Animal Environmental Systems Research » Research » Publications at this Location » Publication #316197
Title: Combination of anaerobic effluent and lignocellulosic bacterial consortium to reduce vermicomposting time

Author
item GUERRERO-CORNEJO, E - University Of Guanajuato
item OLALDE-PORTUGAL, V - Guanajuato Campus Of Cinvestav
item GORDON-PALENIUS, H - University Of Guanajuato
item Lovanh, Nanh
item VALDEZ-VAZQUEZ, I - The National Autonomous University Of Mexico
item ALEJO-LOPEZ, S - University Of Guanajuato
item RUIZ-AGUILAR, J - University Of Guanajuato

Submitted to: Proceedings 2nd International Water Association Conference on Odor and Volatile Organic Compounds
Publication Type: Proceedings
Publication Acceptance Date: 4/20/2015
Publication Date: 4/27/2015
Citation: Guerrero-Cornejo, E.A., Olalde-Portugal, V., Gordon-Palenius, H., Lovanh, N.C., Valdez-Vazquez, I., Alejo-Lopez, S.J., Ruiz-Aguilar, J.M. 2015. Combination of anaerobic effluent and lignocellulosic bacterial consortium to reduce vermicomposting time. Proceedings 2nd International Water Association Conference on Odor and Volatile Organic Compounds. Abstract.

Interpretive Summary:

Technical Abstract: Utilization of solid bio-fertilizers is an alternative to avoid chemical degradation of soil. Anaerobic biodigestor effluents/digestates have been used effectively as fertilizers. However, they may have several risk factors such as the presence of pathogens and heavy metals. Vermicomposting could help to reduce these factors by organic matter oxidation and stabilization. Additionally, anaerobic biodigestor effluent could help to reduce potable water consumption, especially in the arid agricultural region. This study reports the results for the addition of anaerobic biodigestor effluent plus lignocellulosic bacterial consortium to a vermicomposting system in order to reduce process length. Experimental design was constructed in two stages: pre-composting and vermicomposting processes. In the first stage, four compost beds were prepared with raw dairy manure and lignocellulosic bacteria. Two beds were irrigated with potable water and the other two with anaerobic digestate. For the second stage, four treatments were prepared with pre-compost material. All containers were supplied with adult Eisenia foetida. Results showed that bacterial consortium does not affect the quality of vermicompost product in the presence of anaerobic digestion effluent. However, it was effective in reducing the vermicompost production time by almost 30%. Therefore, combination of an anaerobic digestate and lignocellulosic bacterial consortium showed to be a good alternative to reduce vermicomposting process time.