Circular Clarifiers Secondary Wastewater Treatment

Monroe Environmental's secondary circular clarifiers for wastewater are designed to provide a high quality effluent suitable for discharge to the environment or further treatment.

Secondary Clarifier Flow Diagram

Typically the influent will be mixed liquor from an aeration tank incorporating an activated sludge process. Microorganisms metabolize the biological waste that exists after primary clarification.
A central energy-dissipating inlet (EDI) can be used, or Monroe Environmental will design a peripheral feed system that distributes influent around the perimeter of the tank, and aids in activated sludge secondary settling.
The Monroe Environmental secondary clarifier effectively separates the biological floc and colloidal solids to produce wastewater with very low levels of organic material and suspended matter.
Mechanical flocculation and chemical treatment are available.
An enlarged flocculation zone can be designed which allows mixed liquor suspended solids (MLSS) that are broken up during transport from the aeration basin to recombine. The larger floc that results will settle more effectively.
Typically a radial tube header with orifices and manifold employing hydraulic suction will be designed to remove all settled solids from the tank and return them either to the head of the activated sludge process (Return Activated Sludge) or to further solid waste treatment (Waste Activated Sludge).
Alternatively, depending on the application, Monroe Environmental will design a riser pipe mechanism that uses hydraulic suction to effectively remove settled solids.
Drives are carefully selected to assure durability and long life.
Monroe Environmental can provide a traditional or ducking skimmer to remove floating material.
Monroe Environmental's custom designed scum baffles and V-notch weirs will assure a high quality effluent.