EXP1 |
VAS (mL) |
t(s) |
VAMP (mL) |
Vasc(m/h) |
F(V)(nu) |
|
75 |
153 |
100 |
2.48 |
0.94 |
V0=39.6 mL |
100 |
193 |
215 |
4.22 |
1.59 |
K (m/h)=2.50±0.15 |
125 |
185 |
250 |
5.12 |
2.24 |
150 |
182 |
350 |
7.29 |
2.89 |
r=0.99 |
175 |
124 |
275 |
8.40 |
3.53 |
|
200 |
96 |
275 |
10.86 |
4.18 |
|
EXP2 |
VAS (mL) |
t(s) |
VAMP (mL) |
Vasc(m/h) |
F(V)(nu) |
|
75 |
19 |
30 |
5.98 |
1.63 |
V0=28.5 mL |
100 |
32 |
75 |
9.02 |
2.51 |
K (m/h)=3.53±0.45 |
125 |
35 |
100 |
10.92 |
3.39 |
150 |
36 |
150 |
15.66 |
2.89 |
r=0.97 |
175 |
- |
- |
|
- |
|
200 |
77 |
240 |
11.89 |
7.18 |
|
EXP3 |
VAS (mL) |
t(s) |
VAMP (mL) |
Vasc (m/h) |
F(V) (nu) |
|
75 |
183 |
100 |
2.07 |
0.94 |
V0=38.6 mL |
100 |
177 |
210 |
4.50 |
1.59 |
K (m/h)=2.62±0.13 |
125 |
141 |
225 |
6.05 |
2.24 |
150 |
137 |
275 |
7.60 |
2.89 |
r=0.99 |
175 |
- |
- |
- |
- |
|
200 |
123 |
350 |
10.78 |
4.18 |
|
EXP4 |
VAS (mL) |
t(s) |
VAMP (mL) |
Vasc(m/h) |
F(V) (nu) |
|
75 |
18 |
50 |
10.58 |
1.50 |
V0=30 mL |
100 |
20 |
70 |
13.07 |
2.33 |
K (m/h)=2.5±0.28 |
125 |
26 |
90 |
13.22 |
3.17 |
150 |
28 |
125 |
16.90 |
4.00 |
r=0.98 |
175 |
- |
- |
- |
- |
|
200 |
37 |
190 |
19.25 |
5.67 |
|
# EXP=Experiment number
V0=AS initial volume in the graduated cylinder (t=0 sec) in mL
K=AS cohesion coefficient (m/h)
r=Fitting correlation coefficient
VAS=Sludge volume to obtain (or to maintain) in the graduated cylinder
) (mL)
t=Time (in sec) necessary to attain (or to maintain) VAS
VAMP=Elapsed volume from the Squibb funnel during the above time
VASC=Ascending velocity in the graduated cylinder where A is the section of the graduated cylinder minus the section of the glass tubing supplying the effluent; m/h)
to keep the Degrémont [1] representation (nu=no units) |
Table 3: Typical results of an experiment. |