RESEARCH AND APPLICATION OF TECHNOLOGY FOR DRY WET BIOGAS FERMENTATION

摘要

Great differences exist between the rural situations of North China and SouthChina. It is difficult to adopt only one kind of biogas fermentation process tosuit these different conditions. After the success of studies on dry fermentationwith agricultural wastes, we studied the technology of combining dry andconventional, or wet, biogas fermentations. Dry fermentation was used totreat stalks and herbs, wet fermentation to treat human and animal excreta.Separating the treatment of stalks from excreta in dry fermentation can avoidthe formation of crusts which lead to loss of gas-producing materials, andother faults of conventional, wet, biogas digesters treating stalks and excretatogether.