WASTE WATER TREATMENT DEVICE

PROBLEM TO BE SOLVED: To provide a waste water treatment device that can stably treat waste water even if water quality fluctuates largely.SOLUTION: The waste water treatment device includes: a first biological treatment device 10 that treats waste water by means of a membrane-separated activated sl...

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Bibliographische Detailangaben
Hauptverfasser:	KONDO TAKESHI, SHIGIISHI KOSUKE, KAMIMURA KAZUHIDE, NISHIDA MORIMASA, MAEDA TAKUHIRO, SUZUKI HIDEO, TERAKURA SEIICHI
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 waste water treatment device that can stably treat waste water even if water quality fluctuates largely.SOLUTION: The waste water treatment device includes: a first biological treatment device 10 that treats waste water by means of a membrane-separated activated sludge method; a second biological treatment device 20 that treats waste water by means of a biofilm method; measurement units 31, 32 that measure a load concentration and a flow rate in the waste water flowing upstream of the first biological treatment device 10 and the second biological treatment device 20; and a control unit 30 that calculates load quantity from the load concentration and the flow rate, determines in accordance with the load quantity a distribution ratio between the flow rate of the waste water supplied to the first biological treatment device 10 and the flow rate of the waste water supplied to the second biological treatment device 20, and on the basis of the distribution ratio, adjusts the flow rate of the waste water supplied to the first biological treatment device 10 and the flow rate of the waste water supplied to the second biological treatment device 20.