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結論與建議

在文檔中 目錄 (頁 130-140)

5-1 結論

1. CCL及FS淨水廠兩種濾床及不同濾料循環式濾床對濁度之去除,

在快濾床部分,兩間水廠明顯對濁度皆有去除,生物活性碳濾 床部分,CCL淨水廠四個月份皆有去除,FS淨水廠12月則無去 除,不同濾料之循環式濾床對濁度皆有去除。顆粒粒徑部分,

兩間水廠在6月皆無去除,其他三個月份明顯有去除。顆粒表面 電位部分,兩間水廠在四個月分皆有去除;界達電位部分,兩 水廠之快濾床及生物活性碳濾床皆有去除。

2. 對NPDOC之去除,CCL快濾床僅11月無去除,FS快濾床在四

個月分皆有去除,NPDOC增加此部分和淨水前加氯之程序,會 使水中細菌與藻類失去活性、破裂時,會將胞內有機質釋放出

使得NPDOC值上升。SUVA值之去除,CCL及FS快濾床12月

皆無去除,另3月FS也無去除,生物活性碳濾床部分,CCL在 3月及 12月皆無去除,FS則四個月分皆無去除。分子量部分,

CCL在3月、6月及11月出水訊號強度低於進水,但12月出水 訊號強度高於進水;FS淨水廠在6月及12月出水訊號強度略低 於進水,3月及11月則出水強度略高於進水,生物活性碳濾床 部分,CCL淨水廠,部分月份出水之值明顯高於進水,表示有

機物具UV254吸收值之分子量明顯增多,且兩水廠以UV210測

得之分子量訊號強度均明顯高於UV254。

3.  CCL淨水廠快濾床之總螢光強度僅 6月無去除,其餘三個月份

皆有去除,而FS淨水廠3月及12月皆無去除,6月及11月皆有 去除。生物活性碳濾床部分,CCL淨水廠僅6月及12月有去除,

3月及11月皆為增加,FS淨水廠僅11月增加,其他月份皆有去 除。

4. 快濾床及生物活性碳濾床之五類有機物去除,CCL及FS淨水廠

對III類(似黃酸物質)及V類(似腐植酸物質)有機物,較有良好之 去除。

5. CCL及FS淨水廠各月份進出水部分皆小於4其有機物屬水中原

生生物或細菌來源者,但CCL及FS部分月份皆無去除,此可能 與活性碳出水水中細菌總數大幅度增加有關。CCL在四個月份 的生物指數均有去除,FS僅6月無去除,此代表後臭氧/生物濾 床出水的有機物特性屬生物活性碳濾床細菌代謝之有機物。

5-2 建議

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