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Title

Effects of the forced ventilation on composting of a solid olive-mill by-product (“alperujo”) managed by mechanical turning

AuthorsCegarra Rosique, Juan CSIC; Alburquerque Méndez, José Antonio CSIC ORCID; Gonzálvez, José; Tortosa Muñoz, Germán; Chaw, D.
KeywordsAlperujo
AL
Issue Date2006
PublisherElsevier
CitationWaste Management 26(12): 1377-1383 (2006)
AbstractThe evaluation of the most suitable aeration technology for olive-mill by-product “alperujo” (AL) composting was carried out by using two identical piles prepared by mixing AL with a bulking agent (fresh cow bedding) and a mature compost (as inoculant). Forced ventilation was employed in conjunction with mechanical turning in one of the piles, whereas only mechanical turning was used in the other pile. These two treatment methods were evaluated by assessing process efficiency and end-product quality. The results show that the composting process was completed in less time when forced ventilation was coupled with mechanical turning. A slight delay in the evolution of pH, C/N ratio, and biodegradation of fats and organic matter was observed when only turning was employed. However, the recommended method for composting AL was mechanical turning without forced ventilation since the composition of the end-product in this case was comparable to the composted AL using forced ventilation coupled with mechanical turning. Furthermore, there were substantial economic savings by selecting mechanical turning alone, which included capital costs for equipment.
Description7 pages, 2 tables, 4 figures.
Publisher version (URL)http://dx.doi.org/10.1016/j.wasman.2005.11.021
URIhttp://hdl.handle.net/10261/16395
DOI10.1016/j.wasman.2005.11.021
ISSN0956-053X
Appears in Collections:(CEBAS) Artículos

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