METHOD FOR INSOLUBILIZING WASTE WATER FROM FLUE GAS DESULFURIZER
PURPOSE:To insolubilize concd. waste water and to discard the insolubilized material for landfill by adding cement or a mixed powder of cement and coal ash to the concd. waste water obtained by concentrating the waste water from a flue gas desulfurizer by alkali and kneading the admixture. CONSTITUT...
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| creator | OKINO SUSUMU TOYAO MAMORU HORIBE HIDEAKI MIWATA TATSUNORI NAKAMURA TSUMORU UGAWA NAOHIKO YOSHIDA HIROSHI TSUTSUI KOYO KOTAKE SHINICHIRO |
| description | PURPOSE:To insolubilize concd. waste water and to discard the insolubilized material for landfill by adding cement or a mixed powder of cement and coal ash to the concd. waste water obtained by concentrating the waste water from a flue gas desulfurizer by alkali and kneading the admixture. CONSTITUTION:The sulfur dioxide gas in a waste combustion gas is absorbed and separated in a desulfurizer with alkali such as limestone as the absorbent. The waste water from the desulfurizer is treated by a vaporizing and concentrating device to vaporize the water, concentrated and reduced in volume. The concd. waste water is supplied to a tank 1 from the vaporizing and concentrating device through a line (a), transiently stored therein and then supplied to a kneader 5. The cement in a cement storage 2 and the coal ash in a coal ash storage 3 are mixed by a mixer 4, and the mixed powder is supplied to the kneader 5 through a line (e), added to the concd. waste water and kneaded. The kneaded mixed powder is mixed with the concd. waste water, the obtained admixture is then dried by a drier 6, and the dried admixture is discarded for landfill. |
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CONSTITUTION:The sulfur dioxide gas in a waste combustion gas is absorbed and separated in a desulfurizer with alkali such as limestone as the absorbent. The waste water from the desulfurizer is treated by a vaporizing and concentrating device to vaporize the water, concentrated and reduced in volume. The concd. waste water is supplied to a tank 1 from the vaporizing and concentrating device through a line (a), transiently stored therein and then supplied to a kneader 5. The cement in a cement storage 2 and the coal ash in a coal ash storage 3 are mixed by a mixer 4, and the mixed powder is supplied to the kneader 5 through a line (e), added to the concd. waste water and kneaded. The kneaded mixed powder is mixed with the concd. waste water, the obtained admixture is then dried by a drier 6, and the dried admixture is discarded for landfill.</description><language>eng</language><subject>CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>1993</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=19930114&DB=EPODOC&CC=JP&NR=H054080A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930114&DB=EPODOC&CC=JP&NR=H054080A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKINO SUSUMU</creatorcontrib><creatorcontrib>TOYAO MAMORU</creatorcontrib><creatorcontrib>HORIBE HIDEAKI</creatorcontrib><creatorcontrib>MIWATA TATSUNORI</creatorcontrib><creatorcontrib>NAKAMURA TSUMORU</creatorcontrib><creatorcontrib>UGAWA NAOHIKO</creatorcontrib><creatorcontrib>YOSHIDA HIROSHI</creatorcontrib><creatorcontrib>TSUTSUI KOYO</creatorcontrib><creatorcontrib>KOTAKE SHINICHIRO</creatorcontrib><title>METHOD FOR INSOLUBILIZING WASTE WATER FROM FLUE GAS DESULFURIZER</title><description>PURPOSE:To insolubilize concd. waste water and to discard the insolubilized material for landfill by adding cement or a mixed powder of cement and coal ash to the concd. waste water obtained by concentrating the waste water from a flue gas desulfurizer by alkali and kneading the admixture. CONSTITUTION:The sulfur dioxide gas in a waste combustion gas is absorbed and separated in a desulfurizer with alkali such as limestone as the absorbent. The waste water from the desulfurizer is treated by a vaporizing and concentrating device to vaporize the water, concentrated and reduced in volume. The concd. waste water is supplied to a tank 1 from the vaporizing and concentrating device through a line (a), transiently stored therein and then supplied to a kneader 5. The cement in a cement storage 2 and the coal ash in a coal ash storage 3 are mixed by a mixer 4, and the mixed powder is supplied to the kneader 5 through a line (e), added to the concd. waste water and kneaded. 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CONSTITUTION:The sulfur dioxide gas in a waste combustion gas is absorbed and separated in a desulfurizer with alkali such as limestone as the absorbent. The waste water from the desulfurizer is treated by a vaporizing and concentrating device to vaporize the water, concentrated and reduced in volume. The concd. waste water is supplied to a tank 1 from the vaporizing and concentrating device through a line (a), transiently stored therein and then supplied to a kneader 5. The cement in a cement storage 2 and the coal ash in a coal ash storage 3 are mixed by a mixer 4, and the mixed powder is supplied to the kneader 5 through a line (e), added to the concd. waste water and kneaded. The kneaded mixed powder is mixed with the concd. waste water, the obtained admixture is then dried by a drier 6, and the dried admixture is discarded for landfill.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | METHOD FOR INSOLUBILIZING WASTE WATER FROM FLUE GAS DESULFURIZER |
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