Effect of ultrasound pre-treatment in the anaerobic co-digestion of cattle manure with food waste and sludge

被引：58

作者：

Quiroga, G. ^{[1
]}

Castrillon, L. ^{[1
]}

Fernandez-Nava, Y. ^{[1
]}

Maranon, E. ^{[1
]}

Negral, L. ^{[1
]}

Rodriguez-Iglesias, J. ^{[1
]}

Ormaechea, P. ^{[1
]}

机构：

[1] Univ Oviedo, Univ Inst Technol Asturias, Dept Chem Engn & Environm Technol, Gijon 33203, Spain

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 154卷

关键词：

Ultrasound; Anaerobic co-digestion; Cattle manure; Sewage sludge; Food waste; METHANE PRODUCTION; SLURRY; BIOGAS; WATER;

D O I：

10.1016/j.biortech.2013.11.096

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 degrees C and 0.82 CH4/L day at 55 degrees 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. (C) 2014 Published by Elsevier Ltd.

引用

页码：74 / 79

页数：6

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