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Table 4

The characteristics of Ekbatan treatment plant effluent (Tehran Water Supply and Water and Wastewater Treatment Company 2015)

ParametersValuesParametersValues
Maximum effluent rate (m3/hr) 700 Minimum effluent rate (m3/hr) 450 
Temperature (°C) 23–26 Average effluent rate (m3/hr) 550 
Phosphate (mg/L) 2.71 pH 7–7.5 
Sulfate (mg/L) 92.20 BOD5 (mg/L) 2–10 
Nitrate (mg/L) <40 COD (mg/L) 15–30 
Nitrite (mg/L) <1 TSS (mg/L) 
Chloride (mg/L) 102.96 TDS (mg/L) 400–500 
EC (μs/cm) 830 DO (mg/L) 
Total coliform (number per 100 mL) <1,000 E. coli (number per 100 mL) <400 
Heavy metals Parasites (number per liter) 
ParametersValuesParametersValues
Maximum effluent rate (m3/hr) 700 Minimum effluent rate (m3/hr) 450 
Temperature (°C) 23–26 Average effluent rate (m3/hr) 550 
Phosphate (mg/L) 2.71 pH 7–7.5 
Sulfate (mg/L) 92.20 BOD5 (mg/L) 2–10 
Nitrate (mg/L) <40 COD (mg/L) 15–30 
Nitrite (mg/L) <1 TSS (mg/L) 
Chloride (mg/L) 102.96 TDS (mg/L) 400–500 
EC (μs/cm) 830 DO (mg/L) 
Total coliform (number per 100 mL) <1,000 E. coli (number per 100 mL) <400 
Heavy metals Parasites (number per liter) 
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