Pretreatment practice summary of characteristics
Link to this table

Pretreatment practice Mechanism of pollutant removal Relative pollutant removal Capital cost Relative maintenance frequency Relative maintenance effort Relative space requirements
Pretreatment settling devices Screening & settling Medium Medium to High Medium1 Low to Medium Low to Medium
Pretreatment screens Screening Low Low High Medium Low
Pretreatment vegetated filter strips Screening & Settling Medium Low Low High High

1 Pretreatment settling devices are prone to plugging, which will drive maintenance costs up.

This page was last edited on 4 August 2022, at 19:19.