Flocculation time (min) | Group | |||
---|---|---|---|---|
FE (%) | ||||
5 | Treatment | 32.1 | – | 69.4 |
Control | 26.4 | – | 32.9 |
Factor | Level | Significant | ||
---|---|---|---|---|
–1 | 1 | |||
Glucose | 25 | 35 | 0.0022 | ++ |
Yeast extract | 5 | 15 | 0.004 | ++ |
Glutamate | 1 | 3 | 0.025 | + |
Culture time | 28 | 36 | 0.85 | – |
pH | 7 | 8 | 0.861 | – |
Source | Sum of square | DF | Mean square | Prob > |
|
---|---|---|---|---|---|
Model | 0.76 | 9 | 0.084 | 7.02 | 0.0088 |
Residual | 0.084 | 7 | 0.012 | ||
Lack of fit | 0.039 | 3 | 0.013 | 1.16 | 0.4282 |
Pure error | 0.045 | 4 | |||
Cor total | 0.84 | 16 | |||
CV = 13.53 | Adeq. precision = 7.526 |
FE (%) of different algae | Amount of BF/algae added (%) | ||||
---|---|---|---|---|---|
0 | 5 | 10 | 15 | 20 | |
20 | 34.8 | 36.7 | 47.2 | 63 | |
32.9 | 86.4 | 87.8 | 89.4 | 93.9 | |
29.1 | 48.1 | 53.2 | 53.1 | 51.1 |
RUN | Glucose | Yeast extract | Glutamate | Bioflocculant |
---|---|---|---|---|
(g/l) | (g/l) | (g/l) | (g/l) | |
1 | 30 | 10 | 2 | 1.30 |
2 | 30 | 10 | 2 | 1.19 |
3 | 30 | 5 | 1 | 0.9 |
4 | 35 | 5 | 2 | 0.65 |
5 | 30 | 15 | 3 | 0.95 |
6 | 30 | 10 | 2 | 0.89 |
7 | 35 | 10 | 3 | 0.79 |
8 | 25 | 15 | 2 | 0.57 |
9 | 30 | 5 | 3 | 0.87 |
10 | 25 | 10 | 1 | 0.32 |
11 | 25 | 5 | 2 | 0.54 |
12 | 35 | 10 | 1 | 0.79 |
13 | 30 | 10 | 2 | 1.22 |
14 | 30 | 10 | 2 | 1.28 |
15 | 30 | 15 | 1 | 0.92 |
16 | 25 | 10 | 3 | 0.58 |
17 | 35 | 15 | 2 | 0.65 |