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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2011 by Universidad Católica de Valparaíso -- Chile
Vol. 14 No. 3, Issue of May 15, 2011
 

Table 1. Characteristics of swine wastewater.



 

Average ± S.D.

Parameters

Raw Wastewater
(RW)

Treated Wastewater
(TW)

pH

7.3 ± 0.5

7.5 ± 0.5

Total COD(g/L)

25.2 ± 4.1

16.0 ± 2.5

TS (g/L)

20.4 ± 2.9

11.2 ± 1.5

VS (g/L)

14.6 ± 1.7

8.9 ± 0.9

TN (g TN-N/L)

3.2 ± 0.1

2.1 ± 0.1

NH4+-N (g NH4+-N/L)

2.7 ± 0.1

1.9 ± 0.1

TA (g CaCO3/L)

5.0 ± 0.1

4.7 ± 0.1

PA (g CaCO3/L)

3.9 ± 0.1

3.1 ± 0.1

IA (g CaCO3/L)

1.1 ± 0.1

1.6 ± 0.1

VS/TS

0.7 ± 0.3

0.8 ± 0.4

COD/VS

1.7 ± 0.5

1.8 ± 0.5

Copper (mg/L)

1.83

0.12

Zinc (mg/L)

7.53

0.89