Patent ID: 6666965
Filing Date: 2003-12-23
Classification: A01K

Abstract:
A filtration system for use in a water recirculating system, the filtration system comprising:a chamber that includes a hydraulic loading area divided into a plurality of cells such that each cell has a hydraulic loading area less than 2.3 square meters: microbeads positioned in each cell to filter water passing through the chamber, the microbeads being spherical and having diameters between 1 mm and 3 mm, wherein the microbeads have a density that is between 8 kg/cubic meter and 48 kg/cubic meter and the microbeads within each cell forming a layer having a depth between 15 cm and 60 cm; a plurality of nozzles positioned above the microbeads within the chamber to supply contaminated water to each cell in the chamber; and a receiving tank for holding filtered water received from the chamber, the chamber being at least partially immersed in the receiving tank.