第五章 結論與建議
5.2 建議
本研究僅初步針對
NTFC
用於硝酸鹽處理上之可行性進行測試及 評估，由本研究之結果可知NTFC
確實能有效用於硝酸鹽之處理，針 對其反應之最佳條件也由實驗中得知。於氮物質的轉換上也優於零價 鐵的系統，雖然如此，依然僅能轉換部分的硝酸鹽至氮氣，大部分還 是以NH
4+的形式存在。由於NTFC
材料特殊，同時兼具nFe
0及TiO
2 兩種物質於其中，於系統中所能夠進行的反應相當多且繁複，因此針 對NTFC
於反應硝酸鹽時其確切之反應機制，在本研究中僅針對初步 的可能途徑做推測及探討；若能夠針對其詳細的反應途徑機制做進一 步研究，將有助於了解氮物質於系統中轉換之過程，以及氮氣形成之 主要機制，應能更近一步的提升NTFC
處理硝酸鹽時氮氣之生成率，以提升應用於實場之可能性。
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鮮祺振，腐蝕控制，財團法人徐氏基金會，台北，民國87 年。
附錄
A. 離子層析儀檢量線
附表
1.
硝酸鹽(NO
3-)
檢量線原始數據Concentration (mg/L) Peak Area (S)
0.05 10688 0.50 54803 1.00 110518 5.00 546532 50.00 6722936
NO3
-Concentration (mg/L)
0 10 20 30 40 50
Area (s)
0 2x106 4x106 6x106 8x106
R2 = 0.9998
附圖
1.
離子層析儀之硝酸鹽(NO
3-)
檢量線附表
2.
亞硝酸鹽(NO
2-)
檢量線原始數據Concentration (mg/L) Peak Area (S)
0.05 7440 0.50 65148 1.00 133041 5.00 698992 50.00 7949926
NO2
-Concentration (mg/L)
0 10 20 30 40 50
Area (s)
0 2x106 4x106 6x106 8x106 10x106
R2 = 0.9999
附圖
2.
離子層析儀之亞硝酸鹽(NO
2-)
檢量線附表
3.
銨根離子(NH
4+)
檢量線原始數據Concentration (mg/L) Peak Area (μS)
0.50 0.1285 1.00 0.2725 5.00 1.1785 10.00 2.0904 20.00 3.4381
NH4+
Concentration (mg/L)
0 5 10 15 20
Area (μS)
0 1 2 3
R2 = 0.9999
附圖
4.
離子層析儀之銨根離子(NH
4+)
檢量線1.00 2.00 3.00 4.00 5.00 6.00 7.00 1 - 4.460
2 - NH4 - 5.107
min
附圖
5.
陽離子(NH
4+)
層析圖譜B. 氣相層析儀檢量線
附表
4.
氫氣(H
2)
檢量線原始數據Volume (μL) μmole Peak Area 5.0 0.205 6.9 10.0 0.409 15.8 20.0 0.818 29.7 30.0 1.228 46.8 50.0 2.046 70.7 100.0 4.092 121.4 500.0 20.462 419.1 1000.0 40.923 813.9
H2
μmole
0 10 20 30 40
Area
0 200 400 600 800 1000
R2 = 0.9987
附圖
6.
氣相層析儀之氫氣(H
2)
檢量線附圖
7.
氫氣(H
2)
層析圖譜附表
5.
氮氣(N
2)
檢量線原始數據Volume (μL) μmole Peak Area
5.0 0.205 537.7
10.0 0.409 995.7
20.0 0.818 1588.8
30.0 1.228 2258.2
50.0 2.046 4073.1
100.0 4.092 9703.6
500.0 20.462 54145.1
N2
μmole
0 5 10 15 20
Area
0 10000 20000 30000 40000 50000 60000
R2 = 0.9994
附圖
8.
氣相層析儀之氮氣(N
2)
檢量線2 3 4
min
5
N
2–4.170
附圖