Settling device for rainwater

Abstract

A settling device for a rainwater drainage system. The settling device comprises a lamella settling device comprising a first end, a second end opposite the first end and a longitudinal axis extending between the first end and second end. The lamella settling device comprises a lamella inlet portion comprising one or more fluid inlets. The lamella settling device also comprises a lamella outlet portion comprising, for each fluid inlet, one or more respective fluid outlets spaced apart from the respective fluid inlet along the longitudinal axis towards the second end of the lamella settling device. The lamella settling device further comprises a plurality of settling elements. The plurality of settling elements each comprise one or more lamella surfaces inclined with respect to the longitudinal axis, the plurality of settling elements spaced apart along the longitudinal axis to define one or more intervening spaces fluidically connecting the lamella inlet portion and the lamella outlet portion. In use, when fluid passes through the one or more intervening spaces from the lamella inlet portion to the lamella outlet portion, particulate matter in the fluid settles on the lamella surfaces as a result of gravity in a direction away from the second end. [Fig 1A]