Abstract
In order to use biogas effectively, effisient desulfurization system is required. Especially, it is thought that biological desulfurization using microbes in digested slurry (mathane fermented slurry) is effective and economical. However, many a detailed examination on the capability and design specification for biological desulfurization using dairy manure have not been reported.
The objectives of this study were to clarify the capability of a model equipment by ventilation load test and to consider the design specification of a real scale equipumnt.Moreover, the real scale equipment was made based on the capability in the model equipment, and verified if whole gas from a practically running biogas plant can be treated.
The 0.24 m-3 reaction pipe made of PVC was used as an experimental equipment, and carriers were filled inside. The digested slurry was sprayed into the equipment upward by a nozzle using a pump, and was exchenged fresh sluurry for ten percent per day so that the influence of desulfurization efficiency might not to be caused by repeated use of slurry.
When treating at target efficiency with the model equipment having 4.0 m-3 in volume and supplying whole gas from the real scale biogas plant, it was thought that the target efficiency could be obtained sufficiently if operating by suitable temperature conditoins.
