Lamella Clarifiers
Lamella Clarifier is a compact, inclined plate type of clarifier. It is used for clarification of water, waste water and liquid having suspended and colloidal particles. Principle of Lamella Clarifier is based on settling under gravity, providing a number of inclined plates to give large projected surface area.
The liquid/solid feed stream then enters each plate chamber near the bottom section of the plates and flows upward between them. As the feed stream moves upwards, solids settle downward by the plates descending a short distance onto the surface area provided by the plates. Solids continue to slide down the plate surfaces to a collection hopper.
Near the top of each plate, water leaves each cell through a pair of circular openings in the adjustable weir plate located along each side of the clarifier. The weir plate should be set horizontally and in level so as to provide proper distribution of liquid through each circular opening. It should also be set at a height to provide a design water level below the top of the tank.
Sludge is periodically removed by opening the drain valve provided in the hopper bottom of the Lamella clarifier, or can be automatically integrated with sludge dewatering machine