5-1 結論
研究以體積10 L 的生物反應槽，固定顆粒填充率(packing ratio)30％，以不同 粒徑大小、水力停留時間，及曝氣模式作為控制參數，獲得以下結論：
1、COD 300 mg/L 之合成廢水， COD 去除率均達 92.3％以上，總氮去除率 22.9
％~64.8％； COD 為 1000 mg/L 合成廢水 COD 去除率均 94.6％以上，總氮去除 率99.6％以上。在食品廢水方面，SCOD 去除率為 89.4％以上，TCOD 去除率 為80％以上，總氮去除率達 85.9％以上；模型廠(家庭廢水)SCOD 去除率為 71
％以上，TCOD 去除率為 65％以上，總氮去除率為 20.4％以上。
2、在總懸浮固體量及污泥產率方面，COD 300 mg/L 之合成廢水在 1 cm 污泥粒連 續曝氣且水力停留時間12 小時之條件下有最小總懸浮固體量 4.49 g，污泥產率 為0.107 kg SS/kg COD；2.5 cm 污泥粒水力停留時間為 12 小時 1 小時曝氣/2 小 時不曝氣有最小最小總懸浮固體量5.983 g，污泥產率為 0.157 kg SS/kg COD。
食品廢水總固體量為1420 g(含有入流 SS)，1 cm 污泥粒生物反應槽污泥產率為 0.018 kg SS/kg COD，2.5 cm 污泥粒生物反應槽污泥產率為 0.047 kg SS/kg COD。
3、以污泥粒顆粒比較在 COD 為 300mg/L 時，1 cm 污泥粒與 2.5cm 污泥粒之 COD 去除率均達92％，總氮去除率則以 2.5 cm 污泥粒較佳約為 40％~64.8％(1 cm 污 泥粒去除率22.9％~39.6％)。總懸浮固體量為 1 cm 污泥粒較低 (約為 4.49 g~10.91 g)，污泥產率為 0.110 kg SS/kg COD ~0.210 kg SS/kg COD (2 cm 污泥粒 總懸浮固體量為5.983 g~0.275 g，污泥產率為 0.157 kg SS/kg COD ~0.275 kg SS/kg COD)。
4、水力停留時間 12 小時與 6 小時在合成廢水 COD 為 300 mg/L 時實驗，得到 COD 去除率與總氮去除率無明顯差異，因此可以視廢水情形而增減水力停留時 間。
5、合成廢水 1000 mg/L COD 之效果良好，於連續曝氣與水力停留時間 12 小時之 操作條件，得到COD 去除率與總氮去除率均達 94.6％以上，1 cm 污泥粒總固 體量為30.23 g，2.5cm 污泥粒總固體量為 35.33g，而污泥產率分別為 0.228 kg
SS/kg COD 及 0.270 kg SS/kg COD。食品廢水 COD 去除率達 89.4％以上，總氮 去除率85.9％以上，而模型廠(家庭污水) SCOD 去除率為 71％以上，總氮去除 率為20.4％以上，總氮去除率效果不佳之原因是由於其脫硝效果較差，未來將 繼續改變實驗參數繼續進行實驗。
5-2 建議
1、由實驗得之固定式濾料生物反應槽有良好效果，未來可以繼續進行生物反 應槽中生長之生物成分分析或是於生物反應器後加設沉澱池，探究此生物 反應系統之污泥沈降性。
2、本研究以人工合成廢水、食品廢水和家庭廢水進行實驗，未來可以探究以 實際工業廢水實驗或模型廠研究。
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附錄
1 cm 污泥粒曝氣/不曝氣(1/2)水力停留時間 12 小時實驗數據
1 cm 污泥粒曝氣/不曝氣(1/1)水力停留時間 6 小時實驗數據
2.5 cm 污泥粒連續曝氣水力停留時間 12 小時實驗數據
2.5 cm 污泥粒曝氣/不曝氣(1/2)水力停留時間 12 小時實驗數據
2.5 cm 污泥粒曝氣/不曝氣(1/1)水力停留時間 6 小時實驗數據
2、合成廢水 1000 mg/L COD 實驗數據
3、食品廢水實驗數據
2.5cm 污泥粒食品廢水連續曝氣水力停留時間 12 小時(過濾)
4、模型廠家庭廢水實驗數據