Thesis - faculty.ait.ac.th - Asian Institute of Technology

Table F-1 Ammonia Removal Efficiency in Leachate with Varying pH
Initial Concentration
Ammonia Stripping (%)
(mg/L)
pH 9 pH 10 pH 11 pH 12
1,106 16 24 38 43
1,366 23 32 45 50
1,380 25 30 42 47
Table F-2 Experimental Data of Ammonia Concentration at a pH from 11 to 12 of
Leachate as Functions of Contact Time and Velocity Gradient (Run I: 1,106 mg/L)
Velocity
Gradient
(s
2 h
Contact Time
4 h 6 h
-1 )
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
0 767 30 602 45 543 51
1,530 378 66 174 84 73 93
2,850 298 73 60 95 25 98
4,330 269 76 56 95 20 98
Table F-3 Experimental Data of Ammonia Concentration at a pH from 11 to 12 of
Leachate as Functions of Contact Time and Velocity Gradient (Run II: 1,366 mg/L)
Velocity
Gradient
(s
2 h
Contact Time
4 h 6 h
-1 )
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
0 986 28 829 39 689 50
1,530 459 66 190 86 106 92
2,850 353 74 98 93 34 98
4,330 325 76 78 94 28 98
Table F-4 Experimental Data of Ammonia Concentration at a pH from 11 to 12 of
Leachate as Functions of Contact Time and Velocity Gradient (Run III: 1,380 mg/L)
Velocity
Gradient
(s
2 h
Contact Time
4 h 6 h
-1 )
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
NH3 Removal
(mg/L) (%)
0 994 28 876 37 736 47
1,530 540 61 216 84 160 88
2,850 434 69 165 88 59 96
4,330 406 71 148 89 53 96
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