Table 3: Physical-chemical results for dairy effluent before and after AOP treatment in a reaction time of 3 h.

ParametersResults Percentage
In naturaAfter AOP

Actual color (Pt Co)6523.53261.849.9
Turbidity (NTU)27861919.631.1
pH4.367.55
OdorPungentOdorless
COD (mg L−1 O2)6032.54222.830
BOD5 (mg L−1 O2)2218.71819.318
BOD5/COD0.3680.431
TOC (mg L−1)1010692.931.4
Phosphorus (mg L−1)208.5156.425
N-NH3 (mg L−1)158.4126.720
N-organic (mg L−1)180.1144.119.9
ST (mg L−1)10720589655
Oil and grease (mg L−1)2002.180160
Chlorine (mg L−1)793.5536.732.4
Iron (mg L−1)91.5361.832.5
Zinc (mg L−1)5.05.0