| Control of fermentation types in continuous-flow acidogenic reactors:effects of pH and redox potential |
| |
| 作者姓名： | 任南琪 陈小蕾 赵丹 |
| |
| 作者单位： | Research Center of Environmental Bio technology，Harbin Institute of Technology，Harbin 150090，China |
| |
| 摘 要： | ＩｔｉｓｓｈｏｗｎｉｎＦｉｇ .3ａｎｄ 4ｔｈａｔｔｈｅｐＨ <4 .5ａｎｄｔｈｅＥｈ <- 2 2 0ｍＶｐｒｏｖｉｄｅａｓｔａｂｌｅｃｏｎｄｉｔｉｏｎｆｏｒｅｔｈａｎｏｌ ｔｙｐｅｆｅｒｍｅｎｔａｔｉｏｎ .Ｉｎｆａｃｔ,ｅｖｅｎｉｆＥｈｉｓａｒｏｕｎｄ - 2 0 0ｍＶ ,ｔｈｅｅｔｈａｎｏｌ ｔｙｐｅｆｅｒｍｅｎｔａｔｉｏｎｉｓｓｔｉｌｌｒｅｍａｉｎｅｄ16] .Ｍｅａｎ ｗｈｉｌｅ ,ｓｉｎｃｅｅｔｈａｎｏｌｃａｎｂｅｍｏｒｅｅａｓｉｌｙｃｏｎｖｅｒｔｅｄｔｏａｃｅｔｉｃａｃｉｄｂｙｈｙｄｒｏｇｅｎ ａｃｅｔｏｇｅｎｓｔ…
|
Control of fermentation types in continuous-flow acidogenic reactors: effects of pH and redox potential |
| |
| REN Nan-qi,CHEN Xiao-lei,ZHAO Dan.Control of fermentation types in continuous-flow acidogenic reactors:effects of pH and redox potential[J].Journal of Harbin Institute of Technology,2001,8(2). |
| |
| Authors: | REN Nan-qi CHEN Xiao-lei ZHAO Dan |
| |
| Abstract: | The experiments were carried out in continuous-flow acidogenic reactors with molasses used as sub strate to study the effects of pH and redox potential on fermentation types. The conditions for each fermentation type were investigated at different experimental stages of start-up, pH-regulating and redox potential-regulating.The experiments confirmed that butyric acid-type fermentation would occur at pH ＞ 6, the propionic acid-type fermentation at pH about 5.5 with Eh ＞ - 278 mV, and the ethanol-type fermentation at pH ＜ 4.5. A higher redox potential will lead to propionic acid-type fermentation because propionogens are facultative anaerobic bacteria. |
| |
| Keywords: | wastewater anaerobic treatment acidogenic reactor fermentation types redox potential(OR) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
