The technology of anaerobic digestion of sewage and solid wastes regains people＇s attention, mainly due to high price of fossil fuel nowadays in most recent years. The main topic for batch test is to study the inhibi...The technology of anaerobic digestion of sewage and solid wastes regains people＇s attention, mainly due to high price of fossil fuel nowadays in most recent years. The main topic for batch test is to study the inhibitory effect and boundary conditions of organic acid （propionic acid） to anaerobic digesters. High concentrations ofpropionic acid are achieved by direct dosage of the acid. As it is thought to be highly inhibitory to the digester, we are expecting that： （1） the production rate of methane declines and finally stops when the acid gradually accumulates; （2） the propionic acid will displace stronger inhibition under lower pH values. The results of the batch tests will assist engineers to better control anaerobic digesters and react to potential digester crises caused by propionic acid before it is too late.展开更多
文摘The technology of anaerobic digestion of sewage and solid wastes regains people＇s attention, mainly due to high price of fossil fuel nowadays in most recent years. The main topic for batch test is to study the inhibitory effect and boundary conditions of organic acid （propionic acid） to anaerobic digesters. High concentrations ofpropionic acid are achieved by direct dosage of the acid. As it is thought to be highly inhibitory to the digester, we are expecting that： （1） the production rate of methane declines and finally stops when the acid gradually accumulates; （2） the propionic acid will displace stronger inhibition under lower pH values. The results of the batch tests will assist engineers to better control anaerobic digesters and react to potential digester crises caused by propionic acid before it is too late.
