Increasing native microbiota in lignocellulosic waste composting:Effects on process efficiency and final product maturity
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URI: http://hdl.handle.net/10835/15089
ISSN: 1359-5113
DOI: https://doi.org/10.1016/j.procbio.2014.08.003
ISSN: 1359-5113
DOI: https://doi.org/10.1016/j.procbio.2014.08.003
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Jurado Rodríguez, Macarena Del Mar; Suárez Estrella, Francisca; Vargas García, María Del Carmen; López López, María Josefa; López González, Juan Antonio; [et al.]Fecha
2014-08-17Resumen
Intensive agriculture produces more than one million tons of organic waste mainly composed of ligno-cellulosic compounds. Though some management strategies have been lately adopted, many problemsrelated to time and surface required for a proper treatment and final product quality remain unsolved. Inthis work, a staggered bioaugmentation process is proposed for the improvement of horticultural wastecomposting. Inocula were composed of 30 microbial strains previously isolated from identical compost-ing piles, operated under the same conditions used in this work. The high levels of biomass carbon atthe beginning of the bio-oxidative phase and the parallel evolution of reducing sugars reflected a quickadaptation of microbial inocula to the high temperatures reached during the process. Reducing sugarcontent during the process in the uninoculated pile was below 200 g g−1, while a higher content wasdetected in the inoculated pile (2500 g g−1). Hemicellulose degraded at the end of the proces...
Palabra/s clave
Bioaugmentation
Biomass
Microbial inocula
Composting
Maturity indices
Agricultural waste