Coagulant | Dose | pH | Turbidity NTU* | Sólids mL∙L−1 | BOD mg∙L−1 |
Blank | - | 11 | 1348 a | 0f | 1256 a |
H2SO4 | 1.00 mL | 4.50 | 122 b | 20 e | 754 b |
EACB | 1.50 g | 4.50 | 96 b | 200 a | 463 c |
ECAN | 1.50 g | 4.50 | 42 c | 185 b | 816 b |
Gallic acid | 0.20 g | 4.50 | 30 c | 72 d | 525 c |
Al2(SO4)3 | 2.60 g | 4.50 | 52 c | 95 c | 495 c |