Patent ID: 6039866
Filing Date: 2000-03-21
Classification: B01D,C02F,Y02W

Abstract:
A fluidized bed filtering apparatus in which original water to be treated is passed upwardly through a filtering chamber filled with granular filtering material so that the granular filtering material is fluidized by the flow of the water and the water is purified, comprisinga supporting layer disposed in said filtering chamber for supporting a filtering material layer made of said granular filtering material and providing a space in the lower portion of said filtering chamber,a first feed pipe having an outlet within said space for feeding the original water to be treated,a second feed pipe having an outlet in said filtering material layer for feeding the original water to be treated,a pump connected to said first feed pipe for forcedly feeding pressurized water into said space under said supporting layer, anda head tank connected to said second feed pipe for feeding the original water to be purified from said head tank into said filtering material by free fall with gravity.