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Table 2

Quality of municipal wastewater

ParameterInfluent concentrationRejection standardsaReuse standardsb
Temperature, C° 21.5–27 <30 35 
pH value 7.5–8.5 5.5–9.5 8.4 
Conductivity, μS/cm 1,700–2,155 2,700 1,000 
COD, mg/L 647–771 250 100 
BOD5, mg/L 375–450 120 20 
TSS, mg/L 417–557 150 <50 
TN, mg/L 51–74 40 <5 
TP, mg/L 17–23 15 – 
ParameterInfluent concentrationRejection standardsaReuse standardsb
Temperature, C° 21.5–27 <30 35 
pH value 7.5–8.5 5.5–9.5 8.4 
Conductivity, μS/cm 1,700–2,155 2,700 1,000 
COD, mg/L 647–771 250 100 
BOD5, mg/L 375–450 120 20 
TSS, mg/L 417–557 150 <50 
TN, mg/L 51–74 40 <5 
TP, mg/L 17–23 15 – 

aMoroccan pollution standards–specific limits for municipal discharge.

bThis is the maximum permissible values according to Directive FAO and Water reuse standard for irrigation, land watering, Morocco.

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