Study on Interaction of Influencing Factors on Propionic Acid Content in the Process of Anaerobic Hydrolysis and Acidogenesis
High-concentration anaerobic fermentation of cow manure was investigated using anaerobic batch reactors under laboratory conditions at 20 . The quadratic orthogonal rotational combination design was employed. The influencing law of the temperature, the liquid concentration and retention time on propionic acid content was explored. The ranges of temperature, liquid concentration and retention time were 25 to 35, 6％ to 10％ and 2 to 12 days respectively. The influencing law of interactive effect on propionic acid content was analyzed with two-parameter method. The experimental results showed that propionic acid content was greatly influenced by temperature, retention time was second to it, and liquid concentration was the least. There was a big interactive effect between liquid concentration and temperature, between liquid concentration and retention time respectively. However, there was a little interactive effect between temperature and retention time.
manure High concentration Hydrolysis and acidogenesis Propionic acid content Interaction
Wang Zhongjiang Li Wenzhe
School of Engineering Northeast Agricultural University,NEAU Harbin,China School of EngineeringNortheast Agricultural University,NEAUHarbin,China
国际会议
三亚
英文
537-540
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）