کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1278243 | 1497643 | 2008 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Inhibitory effect of ethanol, acetic acid, propionic acid and butyric acid on fermentative hydrogen production Inhibitory effect of ethanol, acetic acid, propionic acid and butyric acid on fermentative hydrogen production](/preview/png/1278243.png)
The inhibitory effect of added ethanol, acetic acid, propionic acid and butyric acid on fermentative hydrogen production by mixed cultures was investigated in batch tests using glucose as substrate. The experimental results showed that, at 35 °C and initial pH 7.0, during the fermentative hydrogen production, the substrate degradation efficiency, hydrogen production potential, hydrogen yield and hydrogen production rate all trended to decrease with increasing added ethanol, acetic acid, propionic acid and butyric acid concentration from 0 to 300 mmol/L. The inhibitory effect of added ethanol on fermentative hydrogen production was smaller than those of added acetic acid, propionic acid and butyric acid. The modified Han–Levenspiel model could describe the inhibitory effects of added ethanol, acetic acid, propionic acid and butyric acid on fermentative hydrogen production rate in this study successfully. The modified Logistic model could describe the progress of cumulative hydrogen production.
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 23, December 2008, Pages 7013–7019