關鍵字：流體化床、結晶、除磷、Ca/P、pH The project “High Concentration of phosphorus Wastewater Treatment by Fluidized-Bed Crystallization (FBC) process for Trial Production on Large Scale” is summarized as follows. This year’s project aimed to fulfill a FBC system for the wastewater treatment capacity of 60 CMD, also to achieve the phosphorus removal efficiency≧70% for high-concentration phosphate wastewater. This study describes the adding CaCl2 process in a 0.5L bench scale FBC reactor for the phosphorus removal of a high-concentration phosphate wastewater (1,000 mg-P/L) from a TFT-LCD factory. Operating conditions, e.g., molar ratio (Me/P) and pH value, were altered to evaluate the optimum of FBC process for phosphorus removal efficiency. Experimental results indicated that the total removal efficiency of phosphorus was over 90% with the optimum conditions: Ca/P=1.6, pH=7.1 The XRD diagrams confirmed the crystal type of FBC product in this highly phosphate concentrated system was calcium hyohogenphosphate dihydrate (CaHPO4‧2H2O), which was different from the calcium phosphate crystal content, hydroxyapatite (Ca5(PO4)3OH), produced by conventional FBC process. A 10L pilot scale FBC with 9 cm diameter was further tested for scale-up study. After the pilot test, the work of field test using 2,500L reactor with 80 cm diameter in TFT-LCD factory was performed. The goal of total phosphorus removal efficiency over 70% from high-concentration phosphate wastewater was successfully fulfilled. The operation cost was about 100 NTD/m3 based on treating the phosphate wastewater with the concentration of 1,000 mg-P/L.