5-1 結論
1. 單獨 PACl 加藥及 PACl 搭配 PolyDADMAC 加藥混凝時，在低濁水(<100 NTU)條件下，提高快混強度(G > 650 s-1)可生成大且密實的膠羽，有效提 昇混沉除濁效能；改使用 PACl 搭配 FeCl3加藥混凝時，混凝膠羽結構密 實，提高快混強度雖對膠羽粒徑及碎形維度無顯著影響，但可明顯提昇混 沉除濁效能。
2. 在低濁水(<100 NTU)條件下，單獨 PACl 及 PACl 搭配 FeCl3加藥混凝之膠 羽結構密實度會隨膠羽粒徑增大而降低，且在快混 Gt 值小於 2×104的範圍 內，提高快混攪拌強度可有效提升混沉除濁效能。
3. 在高濁水(>100 NTU)條件下，單獨 PACl 及 PACl 搭配 FeCl3加藥混凝之膠 羽結構密實度會隨膠羽粒徑增大而升高，但在快混 Gt 值小於 4×104的範圍 內，增加快混攪拌強度對混沉除濁效能影響不顯著。
4. 在低濁水(<100 NTU)條件下，單獨 PACl 及 PACl 搭配 PolyDADMAC 混凝 之膠羽影像 RGB 標準偏差值(standard deviation= 1~3)可作為膠羽生長之粒 徑(d50= 80~160)分析，其 RGB 標準偏差值隨膠羽粒徑變大而升高，但高濁 水(>100 NTU)條件下，RGB 標準偏差值隨膠羽粒徑改變並無明顯變化。
5-2 建議
1. 本研究尚未針對更低濁度(< 30 NTU)的天然濁水進行混凝試驗，由於在低 濁水(< 100 NTU)條件下，調整快混攪拌強度對混沉除濁效能影響較明顯，
因此可再進一步探討更低濁度範圍時，混凝膠羽的生長情況及其混沉除濁 效能受快混攪拌強度之影響。
2. 當原水為高濁水(>100 NTU)時，增加快混強度對膠羽粒徑改變不大，建議 可針對不同濁度範圍之高濁水，提高加藥劑量並調整快混攪拌強度(G 及 t 值)，對混凝膠羽生長特性作更深入的探討。
3. 低濁水及高濁水之混凝膠羽，其碎形維度會隨膠羽粒徑而有相對的生長變 化，藉由此特性可研究膠羽影像之 RGB 標準偏差值與膠羽粒徑的變化關 聯性，當克服水中顆粒雜訊干擾 RGB 值量測的問題後，未來有望可直接 藉由觀察水樣 RGB 值得知水中膠羽之粒徑及碎形維度。
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附錄 A
0 30 60 90 120
Time (min)
0 30 60 90 120
0 30 60 90 120
附錄 B
(PACl dosage: 0.5 mg/L as Al；PolyDADMAC dosage: 0.1 mg/L)0 30 60 90 120 (PACl dosage: 0.5 mg/L as Al；PolyDADMAC dosage: 0.1 mg/L)
0 30 60 90 120 (PACl dosage: 0.5 mg/L as Al；PolyDADMAC dosage: 0.1 mg/L)