METHOD AND APPARATUS FOR TREATING SLUDGE

PROBLEM TO BE SOLVED: To provide a method and apparatus for treating sludge capable of markedly enhancing the treatment capacity of excess sludge in a biological treatment tank. SOLUTION: In the sludge treatment method for treating the excess sludge generated when wastewater is biologically treated...

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Bibliographische Detailangaben
Hauptverfasser:	KOZUKA TAKESHI, KONDO MUNEHIRO, YAMASHITA TOMIKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	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 METALLURGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and apparatus for treating sludge capable of markedly enhancing the treatment capacity of excess sludge in a biological treatment tank. SOLUTION: In the sludge treatment method for treating the excess sludge generated when wastewater is biologically treated in the biological treatment tank 1, the excess sludge is solubilized at predetermined temperature under predetermined pressure in a solubilization apparatus 4 while a predetermined amount of oxygen is supplied and the treated matter is returned to the biological treatment tank 1. Before the excess sludge is solubilized, the concentration thereof is adjusted by a concentration adjusting means 3.