本研究目的以蒙脫土(膨土)進行吸附人工調製的含磷酸鹽廢水。操作參數共有污染標的物、吸附劑、光觸媒等的劑量濃度，攪拌轉速，反應溫度，pH酸鹼度，反應時間；另外一組實驗是由蒙脫土搭配光觸媒UV/TiO2。從實驗結果得知，吸附效率大致隨著操作參數的正向增加同時也跟著提昇。

實驗室級的最佳操作系統針對1000 μg P/L含磷廢水，使用蒙脫土與二氧化鈦濃度各8 ppm的組合，攪拌速率250 rpm，溫度330 T(K)，在pH=4下操作1 hr時間，去磷效率高達96%。而時間效應方面，操作參數的檢選要能貼近污染處理系統，我們單用蒙脫土濃度12 ppm當吸附劑，攪拌選用較慢速的150 rpm，溫度選用接近室溫的300 T(K)，pH=4。時間在180 min為限的操作下，去磷效率仍可達到91%。

The purpose for this study is to adsorb the simulated phosphate wastewater by using montmorillonite (bentonite). The operational parameters are montmorillonite, TiO2, agitation, temperature, pH, and reaction time. From the laboratory investigation, the efficiencies are different according to operating levels. We selected better parameters for laboratory scale of montmorillonite with UV/TiO2 combination system to remove phosphate. To a 1000 μg P/L wastewater, the efficiency is almost 96% in an hour reaction under the condition of 8 ppm bentonite and TiO2 each, with agitation 250 rpm, at 330 T(K) temperature and pH=4. The time effect according the parameters is more approach to a real condition. Therefore we took 12 ppm bentonite sorbent only, with agitation 150 rpm, at 300 T(K) temperature and pH=4. After 180 minutes operation, we still can achieve as high as 91% efficiency.

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