Journal
BIOSYSTEMS ENGINEERING
Volume 99, Issue 1, Pages 105-111Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.biosystemseng.2007.09.018
Keywords
-
Ask authors/readers for more resources
The effect of natural zeolite on the thermophilic anaerobic decomposition of pig waste was investigated. In particular, the effect of adding different amounts of zeolite on the increase of methane production of waste was examined. Two sets of experiments were carried out in duplicate: one with a low initial concentration of organic matter and one with a high initial concentration of organic matter. These experiments were carried out in eight batch reactors at 55 degrees C. The doses of zeolite which were used for the experiments were 0, 4, 8, 12 g l(-1) of waste. Methane production was significantly higher in treatments with natural zeolite at doses 8 and 12 gl(-1) of wastes, compared to those without zeolite. Also in treatments with natural zeolite, the reduction of volatile solids and biological oxygen demand (BOD5) was statistically significant. The results appear to be caused by the addition of zeolite, which adsorbs ammonia, thus having an effect not only on the toxicity of ammonia and on the C/N proportion but also on the regulation of acidity (pH) of the pig wastes. (c) 2007 IAgrE. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available