This document specifies the design requirements for plant and equipment to remove solids, other than screenings and grit, from raw wastewater, at wastewater treatment plants for over 50 PT.
It includes primary treatment with sedimentation, fine screens and micro-screens.
for primary treatment in municipal wastewater treatment plants. It can be used for primary treatment of industrial wastewater, but then the design is specific to the application.
BS EN 12255-4:2023 Referenced Document
EN 12255-1 Wastewater treatment plants - Part 1: General construction principles*, 2002-01-01 Update
EN 16323:2014 Glossary of wastewater engineering terms*, 2014-04-01 Update