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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/29078

Title: Effect of ultrasound pre-treatment in the anaerobic co-digestion of cattle manure with food waste and sludge
Author(s): Quiroga Álvarez, Gerardo
Castrillón Peláez, Leonor
Fernández Nava, Yolanda
Marañón Maison, María Elena
Negral Álvarez, Luis
Rodríguez Iglesias, Jesús Avelino
Ormaechea Menéndez, Pedro
Keywords: Ultrasound
Anaerobic co-digestion
Cattle manure
Sewage sludge
Food waste
Issue date: Feb-2014
Publisher: Elsevier
Publisher version: http://dx.doi.org/10.1016/j.biortech.2013.11.096
Citation: Bioresource Technology, 154, p. 74-79 (2014); doi:10.1016/j.biortech.2013.11.096
Format extent: p. 74-79
Abstract: This paper presents a study of the effect of applying ultrasound pre-treatment in the production of methane when co-digesting mixtures of cattle manure with food waste and sludge. A series of experiments were carried out under mesophilic and thermophilic conditions in continuously stirred-tank reactors containing 70% cattle manure, 20% food waste and 10% sewage sludge. Ultrasound pre-treatment allows operating at lower HRT, achieving higher volumetric methane yields: 0.85 L CH4/L day at 36 C and 0.82 CH4/L day at 55 C, when cattle manure and sewage sludge were sonicated. With respect to the non-sonicated waste, these values represent increases of up to 31% and 67% for mesophilic and thermophilic digestion, respectively
Description: Project AEMEP (Ref. No. 200800050084725)
URI: http://hdl.handle.net/10651/29078
ISSN: 0960-8524
Sponsored: Spanish Ministry for the Environment, Rural and Maritime Affairs
Project id.: Ministerio de Medio Ambiente, Rural y Marino/AEMEP- 200800050084725
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Ingeniería Química y Tecnología del Medio Ambiente
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