DEVICE FOR TREATING DIFFICULT-TO-DECOMPOSE SUBSTANCE
PURPOSE:To enhance the efficiency in utilizing ozone and to reduce the ozone treatment cost in the device in which a water contg. difficult-to-decompose substances is treated with ozone and then biologically treated by measuring the biogradability of the ozone-treated water and adjusting the ozone s...
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| creator | KITAGAWA MIKIO YASUI HIDENARI IMAI YOSHIMI |
| description | PURPOSE:To enhance the efficiency in utilizing ozone and to reduce the ozone treatment cost in the device in which a water contg. difficult-to-decompose substances is treated with ozone and then biologically treated by measuring the biogradability of the ozone-treated water and adjusting the ozone supply based on the measured value. CONSTITUTION:The device for treating a waste water contg. difficult-to- decompose substances such as the waste water contg. acrylonitrile from the chemical plant and the waste fiber scouring water contg. poval is formed by a pretreating device consisting of an ozonizer 1 and an ozone oxidation tower, an ozone-treated water tank 3 and a biological treating device 4 such as an activated-sludge treating device. In this case, a part of the ozone-treated water discharged from the ozone oxidation tower is drawn off, the remainng ozone is removed in an ozone removing tank 5, the BOD is automatically measured by a BOD meter 6 (biogradability meter), and the ozone output of the ozonizer 1 is automatically adjusted by an adjuster 7 based on the measured value so that the BOD/CODcr for example, is controlled to about 20%. |
| format | Patent |
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CONSTITUTION:The device for treating a waste water contg. difficult-to- decompose substances such as the waste water contg. acrylonitrile from the chemical plant and the waste fiber scouring water contg. poval is formed by a pretreating device consisting of an ozonizer 1 and an ozone oxidation tower, an ozone-treated water tank 3 and a biological treating device 4 such as an activated-sludge treating device. In this case, a part of the ozone-treated water discharged from the ozone oxidation tower is drawn off, the remainng ozone is removed in an ozone removing tank 5, the BOD is automatically measured by a BOD meter 6 (biogradability meter), and the ozone output of the ozonizer 1 is automatically adjusted by an adjuster 7 based on the measured value so that the BOD/CODcr for example, is controlled to about 20%.</description><edition>5</edition><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>1994</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=19940913&DB=EPODOC&CC=JP&NR=H06254577A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940913&DB=EPODOC&CC=JP&NR=H06254577A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KITAGAWA MIKIO</creatorcontrib><creatorcontrib>YASUI HIDENARI</creatorcontrib><creatorcontrib>IMAI YOSHIMI</creatorcontrib><title>DEVICE FOR TREATING DIFFICULT-TO-DECOMPOSE SUBSTANCE</title><description>PURPOSE:To enhance the efficiency in utilizing ozone and to reduce the ozone treatment cost in the device in which a water contg. difficult-to-decompose substances is treated with ozone and then biologically treated by measuring the biogradability of the ozone-treated water and adjusting the ozone supply based on the measured value. CONSTITUTION:The device for treating a waste water contg. difficult-to- decompose substances such as the waste water contg. acrylonitrile from the chemical plant and the waste fiber scouring water contg. poval is formed by a pretreating device consisting of an ozonizer 1 and an ozone oxidation tower, an ozone-treated water tank 3 and a biological treating device 4 such as an activated-sludge treating device. In this case, a part of the ozone-treated water discharged from the ozone oxidation tower is drawn off, the remainng ozone is removed in an ozone removing tank 5, the BOD is automatically measured by a BOD meter 6 (biogradability meter), and the ozone output of the ozonizer 1 is automatically adjusted by an adjuster 7 based on the measured value so that the BOD/CODcr for example, is controlled to about 20%.</description><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>METALLURGY</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBxcQ3zdHZVcPMPUggJcnUM8fRzV3DxdHPzdA71CdEN8dd1cXX29w3wD3ZVCA51Cg5x9HN25WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgZmRqYmpubmjsbEqAEA0UInuA</recordid><startdate>19940913</startdate><enddate>19940913</enddate><creator>KITAGAWA MIKIO</creator><creator>YASUI HIDENARI</creator><creator>IMAI YOSHIMI</creator><scope>EVB</scope></search><sort><creationdate>19940913</creationdate><title>DEVICE FOR TREATING DIFFICULT-TO-DECOMPOSE SUBSTANCE</title><author>KITAGAWA MIKIO ; YASUI HIDENARI ; IMAI YOSHIMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06254577A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>METALLURGY</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>KITAGAWA MIKIO</creatorcontrib><creatorcontrib>YASUI HIDENARI</creatorcontrib><creatorcontrib>IMAI YOSHIMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KITAGAWA MIKIO</au><au>YASUI HIDENARI</au><au>IMAI YOSHIMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DEVICE FOR TREATING DIFFICULT-TO-DECOMPOSE SUBSTANCE</title><date>1994-09-13</date><risdate>1994</risdate><abstract>PURPOSE:To enhance the efficiency in utilizing ozone and to reduce the ozone treatment cost in the device in which a water contg. difficult-to-decompose substances is treated with ozone and then biologically treated by measuring the biogradability of the ozone-treated water and adjusting the ozone supply based on the measured value. CONSTITUTION:The device for treating a waste water contg. difficult-to- decompose substances such as the waste water contg. acrylonitrile from the chemical plant and the waste fiber scouring water contg. poval is formed by a pretreating device consisting of an ozonizer 1 and an ozone oxidation tower, an ozone-treated water tank 3 and a biological treating device 4 such as an activated-sludge treating device. In this case, a part of the ozone-treated water discharged from the ozone oxidation tower is drawn off, the remainng ozone is removed in an ozone removing tank 5, the BOD is automatically measured by a BOD meter 6 (biogradability meter), and the ozone output of the ozonizer 1 is automatically adjusted by an adjuster 7 based on the measured value so that the BOD/CODcr for example, is controlled to about 20%.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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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 | DEVICE FOR TREATING DIFFICULT-TO-DECOMPOSE SUBSTANCE |
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