| Title |
Inhibition of Anaerobic Digestion for Alcohol Distillery Waste |
| Authors |
백광욱 ; 조영태 ; 이준걸 ; 장덕 ; 정윤진 ( Kwang Wook Baek ; Young Tai Cho ; Jun Gul Lee ; Duk Chang ; Yoon Jin Chung ) |
| Abstract |
An experimental investigation was conducted on methane fermentation for naked barley distillery waste. Digesters were operated at the hydraulic retention times of 15 to 40 days with organic loading rates of 0.53∼2.82 gCOD/L ·d. Inhibition of methane fermentation was clearly observed at the retention time of 15 days with an organic loading rate of 2.82 gCOD/L·d. Digestion efficiencies were improved with an increase of hydraulic retention time regardless of organic loading rate. It is believed that inhibition of digestion does not occur due to organic overloading and failure must be due to the inhibition material in the naked barley distillery waste. Inhibitory concentration is considered to be dependent on the retention time. |