当前位置: 首页 > 文章 > 投配率对连续两相厌氧发酵酸化效果的影响 东北农业大学学报 2010,41 (10) 116-120
Position: Home > Articles > Effect of dosing rate on continuous two-phase anaerobic fermentation acidification process Journal of Northeast Agricultural University 2010,41 (10) 116-120

投配率对连续两相厌氧发酵酸化效果的影响

作  者:
罗立娜;李文哲;王忠江;肖佳月
单  位:
东北农业大学工程学院
关键词:
连续;投配率;酸化;挥发酸;厌氧发酵
摘  要:
采用自行设计的连续两相厌氧发酵小试装置,研究投配率对牛粪酸化效果的影响。探讨了投配率分别为50%、33%、20%和14%,对挥发性脂肪酸总量及成分的影响规律。结果表明,投配率为33%组的挥发酸总量最高,达13 701.67 mg.L-1,当投配率在14%~33%范围内变化时,挥发酸总量先随着投配率的增加而升高,但投配率增加到50%时挥发酸总量下降;各组的乙酸与丁酸之和百分含量均在80%以上,属于丁酸型发酵;投配率的变化影响挥发酸总量的变化,但不会引起产酸发酵类型的改变。
译  名:
Effect of dosing rate on continuous two-phase anaerobic fermentation acidification process
作  者:
LUO Lina,LI Wenzhe,WANG Zhongjiang,XIAO Jiayue(Engineering College,Northeast Agricultural University,Harbin 150030,China)
关键词:
continuous;dosing rate;acidification;volatile acids;anaerobic fermentation
摘  要:
Influence of dosing rate on acidification of cow dung was studied in self-designed two-phase anaerobic fermentation test equipment.The content and components of volatile fatty acids were discussed with dosing rate at respectively 50%,33%,20% and 14%,the results showed that dosing rate of 33% group obtained the highest content of volatile acids,up to 13 701.67 mg.L-1,with the increasing dosing rate,the content of volatile acids first increased,but lowed when the dosing rate was added up to 50%;the percentage composition of acetic acid and butyric acid exceeded 80% belonging to butyric acid type fermentation;dosing rate influenced the content of volatile acids but had no effect on acidification fermentation type.

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