PURIFYING AND TREATING METHOD OF SEWAGE

PROBLEM TO BE SOLVED: To provide a purifying and treating method for a sewage capable of performing a rapid and efficient biological treatment, hardly generating a large bulk of surplus sludge and eliminating the need for a very large power cost for aeration such as a conventional activated sludge p...

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Bibliographische Detailangaben
Hauptverfasser:	SEKIGUCHI TAKEO, KURASAWA SUSUMU
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 purifying and treating method for a sewage capable of performing a rapid and efficient biological treatment, hardly generating a large bulk of surplus sludge and eliminating the need for a very large power cost for aeration such as a conventional activated sludge process. SOLUTION: After introducing the sewage to be treated into a treating tank 1 arranged with a diffusing means 2 at the bottom part, bubbles 5 are dispersed in the sewage by allowing air to flow in the diffusing means 2 without adding microorganism, and by controlling an air blow-off amount from the diffusing means 2 at this time so that the height of a wave may be