Application of Electrocoagulation Process for Dairy Wastewater Treatment

Table 1

Characteristics of the raw dairy wastewater used for this study.

Parameters	Raw wastewater; Mean ± S.D.	12 h; settled wastewater; Mean ± S.D.	Permissive levels; (Iran standard)
Number of samples	24	24	—
Total COD (mg/L)	7855.25 ± 703.05	6114.25 ± 74.52	60
Total BOD5 (mg/L)	3486.3 ± 235.17	2919.3 ± 45.27	30
Total suspended solids (mg/L)	1724.17 ± 149.14	734.43 ± 22.13	60
Total coliforms (TCs)	4.39×10^6±2.5×10^5	3.53×10^6±1.1×10^5	1000
Fecal coliforms (FCs)	3.27×10^6±1.3×10^5	2.75×10^6±7.2×10^4	400
Conductivity (𝜇S/cm)	8010 ± 1300	8073.67 ± 59.53	—
pH	7.65 ± 0.02	7.24 ± 0.07	6.5–8.5