SLUDGE DISPOSAL EQUIPMENT

PROBLEM TO BE SOLVED: To provide sludge disposal equipment capable of balancing the reduction of excess sludge with the control of a mixed liquor suspended solid (MLSS) and an apparatus for highly efficiently reducing the excess sludge. SOLUTION: Microorganism cells constituting the sludge are destr...

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Bibliographische Detailangaben
Hauptverfasser:	NIKAI YASUKI, ISEMURA KOJI, TAKAHASHI HIDEKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide sludge disposal equipment capable of balancing the reduction of excess sludge with the control of a mixed liquor suspended solid (MLSS) and an apparatus for highly efficiently reducing the excess sludge. SOLUTION: Microorganism cells constituting the sludge are destructed by jetting the sludge pressurized by a uniaxial eccentric screw type pump 53 to the inside of a solubilizing tank 54 through a nozzle to cause cavitation. After that, the sludge is distributed in a distribution tank 55 and a part of the sludge is returned to a joining tank 52. A thickener 7 is connected to the joining tank 52 and the sludge is concentrated in the joining tank 52 by circulating the sludge between the joining tank 52 and the thickener 7. COPYRIGHT: (C)2006,JPO&NCIPI