Assessment of bacterial and fungal communities in a full-scale thermophilic sewage sludge composting pile under a semipermeable cover
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URI: https://hdl.handle.net/10481/87894Metadatos
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Robledo Mahón, Tatiana; Gómez Silvan, Cinta; Andersen, Gary L; Calvo Sáinz, Concepción; Aranda Ballesteros, ElisabetEditorial
Elsevier
Fecha
2020Patrocinador
This research was conducted with funding from Junta de Andalucía (Research project RNM-7370) and the Ministry of Economy and Competitiveness (MINECO) and European Regional Development Fund (ERDF), [CTM2017-84332-R] and [RYC-2013-12481] (Ramón y Cajal contract for EA). We would like to acknowledge the Environmental Microbiology Research Group (RNM-270) of the University of Granada, Spain.Resumen
Bacterial and fungal communities in a full-scale composting pile were investigated, with sewage sludge and a
vegetal bulking agent as starting materials. Bacillales and Actinomycetales were predominant throughout the
process, showing significant abundance. Ascomycota was the predominant fungal phylum during the thermophilic
phase, with a shift to Basidiomycota at the end of the process. The bulking material was the principal
contributor to both communities by the end of the process, with a signal above 50%. The presence of genera,
such as Pedomicrobium, Ureibacillus and Tepidimicrobium at the end of the process, and Chaetomium and
Arthrographis in the maturation phase, showed an inverse correlation with indicators of organic matter stabilisation.
A semipermeable cover was an effective technology for excluding pathogens. These results indicate that
changes in the microbial population and their interrelation with operational variables could represent a useful
tool for monitoring composting processes.