Table 4.

Discharge parameters for tertiary treatment with Chorella sp., at 144 h

Tertiary treatment
Discharge parameter	0 h	144 h	Removal (%)
CU	90 ± 3	34 ± 4	62.2 ± 1.3
TOC (mgL−1)	10 ± 2	6.6 ± 0.87	34 ± 3
COD (mgL−1)	300 ± 9	155 ± 4	48.3 ± 2.4
NO3=	6.25 ± 0.98	4.25 ± 1.11	32 ± 2
NO2−	0.065 ± 0.002	0.156 ± 0.07	0
Ortophososphates	15.7 ± 0.57	9.2 ± 2.3	41.4 ± 3.5
TSS (mgL−1)	66.7 ± 1.2	149 ± 7	0
Algae dry weight	500 ± 10	1400 ± 80	N/A
Total bacteria (CFU mL−1)	1 × 104 ± 1 × 101	1 × 106 ± 1 × 102	N/A
P(biomass) (mg L−1 h−1)	N/C	9.7 ± 1.3	N/A
Y(biomass/COD) (mg mg−1)	N/C	9.65 ± 1.24	N/A
Y(biomasa/TOC) (mg mg−1)	N/C	411 ± 35	N/A
pH	7.06 ± 0.20	7.49 ± 0.20	N/A

N/A does not apply, N/C unable to calculate