Table 2. Effect of glutaraldehyde on chemical oxygen demand removal at steady state. |
Glutaraldehyde concentration (ppm) |
COD (mg L-1) |
COD removal |
||
Influent |
Effluent |
mg L-1 |
Percentage |
|
0 |
106.33 ± 4.96 |
30.67 ± 9.62 |
74.00 ± 7.24 |
71.73 ± 7.67 |
40 |
153.33 ± 10.01 |
65.00 ± 2.00 |
86.67 ± 6.11 |
57.47 ± 1.75 |
80 |
292.00 ± 12.00 |
140.00 ± 13.06 |
158.00 ± 10.07 |
53.05 ± 3.55 |
180 |
427.43 ± 36.03 |
280.00 ± 22.63 |
93.33 ± 20.13 |
39.72 ± 3.10 |
|