TREATMENT OF WASTE WATER
PURPOSE:To release treated waste water with good quality in a stage for treating the waste water by a biological memberene method, by aerating excessively the waste water temporarily from an ordinary aeration state to remove forcibly the biological membrane periodically from a contact base material....
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| creator | KOBAYAKAWA TETSUMA MATSUYOSHI HIDEAKI HARA TAKAYUKI AISOU TAKESHI |
| description | PURPOSE:To release treated waste water with good quality in a stage for treating the waste water by a biological memberene method, by aerating excessively the waste water temporarily from an ordinary aeration state to remove forcibly the biological membrane periodically from a contact base material. CONSTITUTION:Waste water 1 to be treated is introduced into a treatment tank 2, where the water is subjected to a biological membrane treatment. The treated water 3 is fed to a settling tank 4, where the water is subjected to a solid- liquid sepn. The separated water is released as release water 8. Plural net-like contact base materials 5a-5d are packed in the tank 2, and when the qualtity of the water 8 begins to deteriorate, an excess amt. of air is ejected simultaneously from all the air diffusion pipe 7 groups of an air diffuser 6 attached to the materials 5a-5d to aerate the materials. The biological membrane of the decreased degree of activity sticking to the net-like contact base material are forcibly removed and are made to the fresh biological membrane having a high degree of activity to activate the treatment, whereby the quality of the water released from a settling tank 4 is improved. |
| format | Patent |
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CONSTITUTION:Waste water 1 to be treated is introduced into a treatment tank 2, where the water is subjected to a biological membrane treatment. The treated water 3 is fed to a settling tank 4, where the water is subjected to a solid- liquid sepn. The separated water is released as release water 8. Plural net-like contact base materials 5a-5d are packed in the tank 2, and when the qualtity of the water 8 begins to deteriorate, an excess amt. of air is ejected simultaneously from all the air diffusion pipe 7 groups of an air diffuser 6 attached to the materials 5a-5d to aerate the materials. The biological membrane of the decreased degree of activity sticking to the net-like contact base material are forcibly removed and are made to the fresh biological membrane having a high degree of activity to activate the treatment, whereby the quality of the water released from a settling tank 4 is improved.</description><language>eng</language><subject>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</subject><creationdate>1984</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840308&DB=EPODOC&CC=JP&NR=S5942092A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840308&DB=EPODOC&CC=JP&NR=S5942092A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOBAYAKAWA TETSUMA</creatorcontrib><creatorcontrib>MATSUYOSHI HIDEAKI</creatorcontrib><creatorcontrib>HARA TAKAYUKI</creatorcontrib><creatorcontrib>AISOU TAKESHI</creatorcontrib><title>TREATMENT OF WASTE WATER</title><description>PURPOSE:To release treated waste water with good quality in a stage for treating the waste water by a biological memberene method, by aerating excessively the waste water temporarily from an ordinary aeration state to remove forcibly the biological membrane periodically from a contact base material. 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| subjects | 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 |
| title | TREATMENT OF WASTE WATER |
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