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搅拌对牛粪干式厌氧发酵效果的影响

李道义 李树君 刘天舒 黄希国 吴丽丽 景全荣

农业机械学报2013,Vol.44Issue(2):117-120,4.
农业机械学报2013,Vol.44Issue(2):117-120,4.DOI:10.6041/j.issn.1000-1298.2013.02.022

搅拌对牛粪干式厌氧发酵效果的影响

Effect of Mixing on Dry Anaerobic Digestion of Dairy Manure

李道义 1李树君 2刘天舒 2黄希国 2吴丽丽 2景全荣2

作者信息

  • 1. 中国农业大学工学院,北京100083
  • 2. 中国农业机械化科学研究院,北京100083
  • 折叠

摘要

Abstract

Effect of mixing on dry thermophilic ( 55℃) anaerobic digestion of dairy manure was investigated. No significant difference in fermentation performance was observed between continuous mixing speeds of 8 ~ 32 r/min. Compared to continuously mixing, although 10% less methane was produced with batch slightly mixing. It greatly decreased energy consumption .for mixing, and more suitable for dry anaerobic digestion. No significant difference in pH value, concentrations of ammonia, volatile fatty acid and total alkalinity was observed among different mixing conditions during digestion.

关键词

牛粪/搅拌/干式厌氧发酵/沼气

Key words

Dairy manure Mixing Dry anaerobic digestion Biogas

分类

农业科技

引用本文复制引用

李道义,李树君,刘天舒,黄希国,吴丽丽,景全荣..搅拌对牛粪干式厌氧发酵效果的影响[J].农业机械学报,2013,44(2):117-120,4.

基金项目

国际科技合作资助项目(2010DFB60680) (2010DFB60680)

农业机械学报

OA北大核心CSCDCSTPCD

1000-1298

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