METHOD FOR TREATING WASTE WATER AND DEVICE THEREFOR

PROBLEM TO BE SOLVED: To provide a method and device to effect a nitrification treatment of waste water containing nitrogen under pressure. SOLUTION: In a method wherein waste water containing ammonia whose organic matters have been subjected to an aerobic biological treatment and pressurized gas co...

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Bibliographische Detailangaben
Hauptverfasser:	IMAMURA YASUO, YUSHINA YOSHINORI, KIMURA TAKASHI, NOMURA HISASHI, KATAOKA KIMIHARU
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 device to effect a nitrification treatment of waste water containing nitrogen under pressure. SOLUTION: In a method wherein waste water containing ammonia whose organic matters have been subjected to an aerobic biological treatment and pressurized gas containing oxygen is introduced into a closed treatment tank filled with carriers on which nitrifying bacteria are immobilized to effect a nitrification treatment under pressure, the nitrification treatmant is carried out in the tank under pressure of 1-15kg/cm G, and exhaust gas from the treatment tank is heat-exchanged with a gas supplied by a compressor and thereafter the exhaust gas is reutilized in the aerobic biological treatment of organic matters in the waste water.