Patent ID: 6352643
Filing Date: 2002-03-05
Classification: C02F

Abstract:
A wastewater treatment plant comprising, an upflow anaerobic reactor, an aerobic reactor, and a terminal settling tank, wherein said upflow anaerobic reactor includes an inlet mounted at an external lowest region of the anaerobic reactor; an introducing means directly connected to said inlet and located at a lower region in the anaerobic reactor, and having a perforated drain pipe therein; mixing means which is provided at a main shaft thereof at a regular interval in the anaerobic reactor; a discharging means having radial-shaped weirs extending outwards from a center and is positioned at an upper region in the anaerobic reactor for allowing reaction water containing sludge from a reaction generated by said mixing means to flow into the aerobic reactor; a sludge-accumulating means which is provided at the lower region in the anaerobic reactor for collecting the sludge which is settled by gravity during said reaction by the mixing means to the center of the anaerobic reactor.