Co-composting of poultry manure with other agricultural wastes: process performance and compost horticultural use

Authors
Rizzo, Pedro Federico; Della Torre, Virginia; Riera, Nicolas; Crespo, Diana Elvira; Barrena, Raquel; Sánchez, Antoni
Publication Year
2015
Language
English
Format
article
Status
Published version
Description
The aim of this work was to evaluate the composting process of poultry manure mixed with other complementary organic wastes. Two mixtures (treatment 1 and 2) were prepared with corn bare cobs, sawdust, shavings and manure. Temperature, pH, electrical conductivity, organic matter loss, total organic carbon, solved organic carbon, N loss, ammonium and nitrate concentration, laccase activity and respiration indices were analyzed. These variables showed similar tendencies during the composting process in both treatments. A peak of biological activity, organic matter mineralization and salt release was observed after 6 days of the process. Treatment 2 showed a higher concentration of solved organic carbon and higher organic matter loss than in the mixture with less manure (treatment 1). Laccase activity increased when solved organic carbon decreased. Compost from treatment 1 showed lower phytotoxic effects than that from treatment 2, probably because of a low salt content. In conclusion, it was observed that 60 % content of poultry manure in the mixture does not affect the composting process. However, the final product is not as good for agricultural purposes as a mixture with a lower manure content. Finally, it can be stated that the valorization of these wastes in the form of compost adds value to the materials, closing the biogeochemical nutrient cycle.
Instituto de Microbiología y Zoología Agrícola
Fil: Rizzo, Pedro Federico. INTA. Instituto de Microbiología y Zoología Agrícola. Laboratorio de Transformación de Residuos; Argentina
Fil: Della Torre, Virginia. INTA. Instituto de Microbiología y Zoología Agrícola. Laboratorio de Transformación de Residuos; Argentina
Fil: Riera, Nicolas Iváno. INTA. Instituto de Microbiología y Zoología Agrícola. Laboratorio de Transformación de Residuos; Argentina
Fil: Crespo, Diana Elvira. INTA. Instituto de Microbiología y Zoología Agrícola. Laboratorio de Transformación de Residuos; Argentina
Fil: Barrena, Raquel. Universitat Autònoma de Barcelona. Departamento de Ingeniería Química; España
Fil: Sánchez, Antoni. Universitat Autònoma de Barcelona. Departamento de Ingeniería Química; España
Source
Journal of Material Cycles and Waste Management 17 (1) : 42–50 (January 2015)
Subject
Desechos Agrícolas
Estiércol
Aves de Corral
Compost
Elaboración del Compost
Manejo de Desechos Agrícolas
Agricultural Wastes
Farmyard Manure
Poultry
Composts
Composting
Agricultural Waste Management
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/3599