Patent ID: 6033571
Filing Date: 2000-03-07
Classification: C02F,Y02W

Abstract:
An activated sludge treatment apparatus for treating an organic waste water, comprising:an aeration tank for subjecting the organic waste water to an aerobic biological treatment to form a treated waste water;a first precipitation device operatively connected to the aeration tank for separating the treated waste water into treated water and a sludge;a recycle route for returning a portion of the sludge from the precipitation device to the aeration tank;the improvement which comprises a solubilizing treatment device operatively connected to the precipitation device for solubilizing the remaining portion of the sludge from the precipitation device by thermophilic bacteria to form a treated solubilized solution; anda return route for returning the treated solubilized solution from the solubilizing treatment device to the aeration tank.