加載中. ..
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103
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2 _____________
50 22B
( )
10
3 1.
2 2.
10 20 30 50
2 3.
1 4.
2 5.
90%
4 6.
1.5 2
2.5 3
4 7. (Alkalinity)
1 8.
3 9.
2 10.
1 11.
20~30 m 40~50 m 70~80 m 90~100 m
1 12.
2 13.
1 14.
2 4 8 16
2 15. 14
2 4 8 16
2 16.
1 17.
4 18.
2 19.
0.3 m/s 0.3 m/min 0.3 m/hour 0.3 m/day
3 20.
1 m 2 m 3 m 5 m
3 21.
4 22.
4 23.
2 24.
0.3 mg/L 3 mg/L 30 mg/L 300 mg/L
1 25.
2 26.
1 m 3 m 5 m 7 m
2 27.
5 min 10 min 15 min 20 min
3 28. A B C
B/A/C C/B/A A/B/C B/C/A
4 29.
1 30. 300
36 90 360 900
3 31. (Manning equation)
1 2/3 5/3 2
2 32.
3 33.
3 34.
1 35.
3 36. 12mg/L 3 CMD
3.6 36 360 3600
4 37.
2 38.
1 39.
1 40. (PAC)
pH
4 41.
3 42.
2 43. 3 4.5
1.0 m/hr 1.5 m/hr
3 m/hr 4.5 m/hr
1 44.
3 45.
1 46.
3 47. pH 7.0
Cl2 OCl-
HOCl NaOCl
2 48.
HOCl NHCl2
OCl- Cl-
4 49.
CO2pH
4 50.