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Table 4 Nitrogen and phosphorus contents of various wastewater.

From: Integration of biology, ecology and engineering for sustainable algal-based biofuel and bioproduct biorefinery

Wastewater source

N (mg/L)

P (mg/L)

N:P ratio (molar)

Domestic

20 to 85

5 to 20

11 to 13

Pigs

800 to 2300

50 to 320

12 to 17

Beef cattle

63

14

10

Dairy cattle

185

30

4

Poultry

800

50

32

Coke production

757

0.5

3000

Tannery

273

21

29

Paper mill

11

0.6

41

Textile

90

18

11

Winery

110

52

5

Anaerobic digestion food waste

1600 to 1900

300

–

Olive mill

530

182

2.9