Solubilization of organic sludge by thermophilic aerobic bacteria as a pretreatment for anaerobic digestion

摘要

Solubilization of organic sludge by thermophilic aerobic bacteria as a pretreatment for anaerobic digestion was investigated. The thermophilic bacteria which solubilized organic sludge were isolated from the thermophilic aerobic digestion reactor. The bacterium type SPT2-1 could grow at pH ranging from 5.0 to 8.5 with optimal temperature at 60-70 deg C. In batch experiments, 25-30