Anaerobic batch digestion of sheep tallow

被引：65
作者：
Broughton, MJ
Thiele, JH [1 ]
Birch, EJ
Cohen, A
机构：
[1] Waste Solut Ltd, Invermay Agr Ctr, Mosgiel, New Zealand
[2] Univ Otago, Dept Food Sci, Dunedin, New Zealand
来源：
WATER RESEARCH | 1998年 / 32卷 / 05期
关键词：
anaerobic; digestion; mesophilic; thermophilic; long-chain fatty acids; triglycerides; tallow; fermentation;
D O I：
10.1016/S0043-1354(97)00345-X
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Anaerobic batch digestion reactors were operated at mesophilic (35 degrees C) and thermophilic (50 degrees C) temperatures with sheep tallow at levels up to 59% of the volatile solids. Tallow was rapidly fermented to long-chain fatty acids (LCFA) and volatile fatty acids (VFA) at 35 degrees C, but was refractory at 50 degrees C. Oleic acid was fermented to palmitic, stearic and acetic acid. Methanogenesis was delayed by characteristic adaptation periods before LCFA and VFA were completely degraded. This demonstrated that wastes with high lipid contents are amenable to stabilization by mesophilic batch digestion. (C) 1998 Elsevier Science Ltd. All rights reserved.
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收藏
页码：1423 / 1428
页数：6
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