固定化細胞處理豬糞尿水之數學模式

Abstract

摘 要 劉(1996)以纖維醋酸三酯(Cellulose triacetate)為固定化材質，包覆厭氣污泥製成固定化細胞 (Immobilized cells)，作為處理豬糞尿水填充床(Packed bed)的介質，同時評估氮、磷去除效果及固定化細胞大小對處理效率之影響。 其研究結果顯示，厭氧槽BOD去除率最高達84%，COD為82%。可見在廢水處理上，其為可行的處理法。本研究的目的為，推導以固定化細胞技術處理豬糞尿水之數學模式；並進行電腦模擬並找出最適切的操作條件。 由模擬結果得知運用本研究所推導的數學模式，於系統的生化反應模擬確實可行。本研究除找到描述此系統的生化反應數學模式外，透過敏感度分析了解系統內部相關參數、有效因子、系統物理及顆粒物理條件，對系統生化反應的影響；且透過數學模擬，便可預估反應槽處理效能，以供系統最佳化反應條件的設計參考。

Abstract Liu(1996) used immobilized cells that was manufactured by entrapping the anaerobic sludge with cellulose triacetate as the media of packed-bed reactors. The objectives of the study are : to investigate the feasibility of using these immobilized cells for swine wastewater treatment, to evaluate its performance in removal of nitrogen and phosphorus, and the effect of the cell size on treatment efficiencies. It was observed that 84% of BOD and 82% of COD removal efficiencies for the anaerobic system. It is a feasible method in wastewater treatment. The purpose of this study is to develop a mathematical model of this system, use the model to predict the variation of the reaction performance and find the optimal operation criteria. It is certainly feasible to use the mathematical model of this study to simulation biochemical reaction in this system. Except finding a feasible mathematical model for this system, by sensitive analysis also show influence of the inner relational parameters, efficiency factor, the physics condition of this system and immobilized cells；We can predict treatment efficiencies by the simulation of mathematical model, and it can offer the reference to find the optimal operation criteria.