Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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A drinking water treatment plant with conventional treatment uses on disinfection segment consisting of a rectangular basin, with a theoretical detention of 270 min with a baffling factor of 0.5. The average free chlorine residual recorded at the disinfection segment monitoring location in 1.6 mg/L. The lowest free chlorine residual recorded was 1.2 mg/L during peak flow. The water temperature is 5C and pH is 7.5
a) Determine the inactivation ratio if 0.5-log inactivation of Giardia lamblia cysts is required
b) Under these design conditions, have Giardia lamblia cysts been adequently inactivated?
c) Will the plant achieve adequete Giardia lamblia inactivation if 0.5-log inactivation is required but the water temperature is raised to 10C?
d) Will the plant achieve adequete Giardia lamblia inactivation if 3-log inactivation is required and the water temperature remain at 5C?
e) Will the plant achieve adequete Giardia lamblia inactivation if 3-log inactivation is required and the water temperature is raised to 10C
Transcribed Image Text:CHLORINE
CONCENTRATION
(mg/L)
(m/L)
Notes:
<=0.4
0.6
(1) CT
...
1.2
CHLORINE
CONCENTRATION
99.9
pi<=6
Log Inactivatione
0.5 1.0 1.5 2.0 2.5 3.0 0.5
2.6
2.8
2333
12 24
13 25
13
13
13
4
13.3GPPRRRRRRER
0.5
1.6 14 -28
1.8 14
2 15
15
跖
26
26
2 5
27
29
29
2.2
2.4 15 30 45
15
16
3 16 32
30
IC
27 40 53
3030900000000号
37
6€
40
2.6 32 65
2.8
33 66
43
45
46
P88888888
50
龍
18
52
06
53
66
3 34 67 101
= CT for 3-log inactivation
55
55
LS
47 62
58
59
pid=8.0
Log Inactivations
09
19
63
500053SPEEFFER
63
65
69
73
74
79
FFERE233632008
75
a
7
1.0 1.5 2.0 2.5 3.0 0.5
9
90
92
15
15
15
18
93 19
95 19
FFERR3221路2345
30
IC
SE
36
<=0.4
50 75 9124 149
0.6 26 51 刀 102 128 153
0.8
26 53
105 132
158
162
1
27 54
108 135
1.2 20 55 83
138 166
1.4 23 57 5 113 142 170
1.6 29 58 7 116 145 174
1.8 30 60
119 149 179
2
30 61 91 121 152 182
2.2 3162 93 124 155 186
38 75 113
2.4 32 63
95 127 158 190
115
97 129 162 194 39 78 117
131 164 197
120
134 168 201
37
TABLE E-3
CT VALUES FOR INACTIVATION
16
63
16
63
16
65
17
33
66
17 34
51
67
17
35
52
69
18
35 53 70
36
4
38
OF GIARDIA CYSTS BY FREE CHLORINE
AT 10 C (1)
40
pid=6.5
Log leactivations
pi-7.0
Log leactivations
1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 0.5
29
30
3.
3.
32
33
37
37
38
1.0
44 59 73
75
7
78
05396SRRAFF22-
F7 4 X 5 X 85&t
61
45
46
67
47
50
55
57
09
19
9
92
8
EL
80
81 122
90 18
92 18
79
82
83
34
87 104
插
61
95 19
6
66
101
林
71 89 107
56 74 93 111
105
D±uppp001annnn
92 110
17
75 4113 |
126 158 189
130 163 195
19
20
20
21
21
22
22
22
23
137 172 206 41
141 176 211 42
43
44
45
106 143 179 215
111
147 184 221
150 188 225
153 192 230
156 195
234 47
159 199 239 福
162 203 243
49
35 52
EXPER020088888
99
39
40
41
118 148 177 570105
122 153 183 36
38
殊
39
100 133 167 200 40
103
70 106
大約800003369
41 62
37 56 75 93
57
19
43 65
45 67
p = 8.5
Log Inactivations
1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0
PPPER202229326
80
69 37 104
SFEEE823333635
42 64 85 106
73 109
73 113
78117
120
82 124
127
130
7
133
90 136
71
138
141
6 144
146
42
107 21 43
110 22 4
112
2 45
76 95 14 23 错
97
116
119
122
124
25 50
127 26 51
129 26 52
131
53
9 112 134 27 34
114
86 108
66 -87 109
pi<=9.0
Log Inactivations
79
68
92
81 102
83 103
16
139 174 209
218
151 188 226
156 195 234
160 200
240
165 206
247
169 211
253
173 216
259
IT 21
265
181 226
271
184 230
276
187 234.
281
191 239
195 243
ZII SN
HANNARRRR
267
292
21
24
25
27
1.0
23
LD
I -7.5
Log Inactivatione
1.5 2.0
03363RRRRRRRED
99
70
72
3104 125
5 107 128
109
138
112-
134
184 137
. 117 140
a
16
120 144
123 47
100 125 150
102 128
153
79 105 138
107 133
136
138
55 83
蜡
2.5 3.0
6
12 109
111
157
160
163
166
Transcribed Image Text:CHLORINE
CONCENTRATION
(mg/L)
<=0.4
(mg/L)
0.6
0.8
Source: AWWA, 1991.
1
1.2
1.4
2468 NN4600
1.6
NNNN
1.8
2
2.2
2.4
CHLORINE
CONCENTRATION
<=0.4
0.6
0.8
WOO ANNOSN 00
NNNN
1
1.2
1.4
1.6
2.6
20
2.8 21
3 21
Table C-2. CT Values for Inactivation of Giardia Cysts by Free Chlorine at 5°C
pH<=6
Log Inactivation
pH=6.5
Log Inactivation
pH=7.0
Log Inactivation
16
97
33
50 67 83 100
20 39
20 40
20 41
59 78 98 117
60 80 100 120
61 81 102 122
63
17 34 52 69 86 103
24
83 104 125 25
53 70 88 105
35
36 54 71
89 107
0.5 1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 0.5
32 49 65 81
23 46 70 93 116 139 28
24 49 72 95 119 143 29
49
73
97 122 146 29
50 75 99 124
85 106 127 25 51 76 101 127
78 103 129
79 105 132
81 108 135
83 110 138
85 113 141
86 115 143
91 109
97 108 130 26
36 55 73
56 74
38 57 76
37
39 58 77
39 59 79
40 60
41 61
41 62 83 103 124
42 63 84 105 126
93 111
95 114
97 116
98 118
80 100 120
81 102 122
52
88 110 132 26 53
90 113 135 27 54
92 115 138 28
55
93 117 140 28 56
95 119 143 29 57
29 58
30 59
149 30
152 31
155 31
158 32
162 33
165 33
169 34
172 35
175 36
178 36
182 37
30
61
88 117 146
89 119 148
91 121 152
pH=9.0
Log Inactivation
2.4
SOTTOBR922888
2.6
17
2.8
18
3
18
70 105
36 72 108
74 111
76 114
77 116
1.8 40 79 119
81 122
83 124
84 127
86 129
88 132
89 134
18
19
19
19
20
20
2 41
2.2 41
15 33 34 35 38 37 38 39 FFQ3445
0.5
pH=8.0
Log Inactivation
68 102
1.0 1.5 2.0 2.5 3.0
66 99 132 165 198
136 170 204
140 175 210
144 180 216
147 184 221
151 189 227
155 193 232
159 198 238
162 203 243
165 207 248
169 211 253
172 215 258
175 219 263
179 223 268
42
88888
21
42
42 64
22
43 65
22 44 66
23 45 69
23 46 69
23 47 70
24 48 72
24 49 73
25 49 74 99 123 148
97 122 146
25
50
76 101 126 151
pH=8.5
Log Inactivation
1.0 1.5 2.0 2.5 3.0
79 118 157 197 236
0.5
39
41 81 122 163 203 244
42 84 126 168 210 252
43 87 130 173 217 260
45 89 134 178 223 267
46 91 137 183 228 274
47 94 141 197 234 281
48 96 144 191 239 287
49 98 147 196 245 294
50 100 150 200 250 300
51 102 153 204 255 306
52 104 156 208 260 312
53 106 159 212 265 318
54 108 162 216 270 324
0.5
47
49 97 146 194 243
50 100 151 201 251
52 104 156 208 260
53 107 160 213 267
55 110 165 219 274
56 112 169 225 281
58 115 173 230 288
59 118 177 235 294
60 120 181 241 301
61 123 184 245 307
63 125 189 250 313
64 127 191 255 318
65 130 195 259 324
1.0 1.5 2.0 2.5
93 140 186 233
3.0
279
291
301
312
320
329
337
345
353
361
368
375
382
389
pH=7.5
Log Inactivation
1.0 1.5 2.0 2.5 3.0
55
83 111 138 166
57
86 114 143 171
88 117 146
175
90 119 149
179
92 122 153
183
187
192
58
60
61
62
64
65 98 131 163
94 125 156
96 128 160
196
200
67 100 133 167
68 102 136 170
204
70 105 139 174 209
213
217
221
71 107 142 178
72 109 145 181
74 111 147 184
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