Table 2.

Characterization of deproteinized potato wastewater

Parameter	Unit	Average value ± SD
Dry substance	g/100 mL	3.97 ± 0.05
Total nitrogen	g/100 mL	0.232 ± 0.007
Total protein	g/100 mL	1.45 ± 0.05
Directly reducing sugars	g/100 mL	0.73 ± 0.05
COD	mg O2/L	30,820 ± 527
Potassium	g/100 mL	0.431 ± 0.025
Phosphorus	g/100 mL	0.027 ± 0.002
Magnesium	g/100 mL	0.024 ± 0.001
Calcium	g/100 mL	0.016 ± 0.001
Sodium	g/100 mL	0.006 ± 0.000