Study on Removing of Isopropanol and Acetone via Anaerobic Biological Process

• Main Authors: Kai-I Cheng, 鄭凱義
• Other Authors: 曾四恭
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/69743830270533530468

碩士 === 國立臺灣大學 === 環境工程學研究所 === 93 === This study intended to investigation the effects of microorganism on Isopropanol (IPA) and acetone removals in anaerobic condition. The investigation of batch test in different water parameters to find the property of IPA and acetone removals by microorganism. Furthermore, the availability of removing IPA and acetone from immobilized and quantz filters in continuous-flow system was evaluated to find the optimum operation. The result of batch reator revealed that IPA and acetone could be degrade by microorganism. The optim pH is between 7 and 7.5. The optim F/M ratio is between 0.12 and 0.25 kg-COD/kg-MLSS/day. Bicarbonate and Nitrate present in wastewater have positive effect of IPA and acetone biodegradation. The result of continuous-flow system revealed that ,for 10 mg/L IPA and acetone wastewater ,to approach 100% IPA and acetone removal efficiency, COD loading below 0.144 kg-COD/m3/day or hydraulic retention time under 4 hour will do. Because IPA and acetone usually below 10 mg/L in semi-conductor wastewater, this optimum operation can reatch the goal of non-detected IPA and acetone in effluent water. To compare with the efficiency of two filters, less difference between two filters. In this research chosing quantz filter in practice.