Improvement of an Automation System in Anaerobic Settle and Draw Phases in CFSBRs

• Main Authors: Yi-Sheng Chen, 陳義昇
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/94530407810500241437

碩士 === 國立中央大學 === 環境工程研究所 === 93 === The continuous-flow sequencing batch reactor (CFSBR) is capable of removing the organic carbonaceous materials, biological nutrients such as nitrogen and phosphorus by cycling anaerobic, aerobic, anoxic, settling and discharge phases. Development at automatically monitoring & controllable system , the optimal procedure of most phases were usually executed by the pH/ORP real-time control approaches. Therefore, this study tries to set up the method for on–line measuring anaerobic phase break–point judged by ORP and pH trend-characteristic value. However, according to the experiment result, using the pH trend-characteristic value to judge anaerobic phase break-point would need less time than using the ORP trend-characteristic value. In addition, the ORP subtract value have a very high correlation with Specific liberation phosphorus. Using this equation could calculate the liberation phosphorus from on-line ORP detector. And according to this equation and concluding a suitable liberation phosphorus value could provide an additional judgment of anaerobic phase terminal point.