TREATMENT COSTS

Tertiary treatment (coagulation-flocculation + filtration)

This costs computation concerns the following units of treatment:

• secondary treatment
• coagulant addition
• rapid mix
• flocculation
• sedimentation
• filtration
• disinfection (chlorination)

The treatment costs, including  capital, operation and maintenance costs, have been obtained assuming a daily pro-capita discharge of 300 l/EI-d. If you want to meet the treatment cost for different values of daily pro-capita discharge, you must activate the following link.

AUTOMATIC COMPUTATION COSTS OF TREATMENT

Treatment cost for daily pro-capita discharge of 300 l/EI-d

The unit treatment costs, expressed in £/m3, have been obtained with the following equations:

 x < 30.000 EI:

y = 1818– 0.0311 x

x >=30.000 EI:

y = 912– 0.0009 x

y = unit cost in £/m3

x = equivalent inhabitants (EI)

The following Table shows the unit costs for the principal capacity plant.

Unit treatment costs for the principal capacity plant

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