A New Two-Stage Digested Process For Treating High-Solid Organic Wastes

• Main Authors: Te-Jung Lin, 林德榮
• Other Authors: Jiunn-Jyi Lay
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/03103520904134111550

碩士 === 國立高雄第一科技大學 === 環境與安全衛生工程所 === 93 === The purpose of this study was to find out a new two-stage bioprocess for treating high-solid organic wastes. For this purpose, 5% dog food was used as a model organic waste in this study. Initially, the organic waste was converted to produce hydrogen by a complete mixing anaerobic digester. Subsequently, the solid residual of the digester was degraded into carbon dioxide, ammonia and vapor in an an-oxygenic digester with the moisture of around 55%. The experimental results show that a good solid removal efficiency of 70% was obtained while the hydraulic retention time (HRT) of anaerobic digester and solid retention time (SRT) of an-oxygenic digester were around 1.0 and 3 – 4 days, respectively. Based on a high recovery of solid (greater than 90%) demonstrated that the combination of anaerobic and an-oxygenic digesters was useful for the treatment of high-solid organic wastes.