METHOD OF REMOVING PHOSPHORUS IN WATER
PROBLEM TO BE SOLVED: To use an adsorbing volcanic ash soil granular matter consisting of volcanic ash soil consisting essentially of allophane which can be easily reused to remove phosphorus in water containing phosphorus of a low concentration and to prolong the life of the adsorbing volcanic soil...
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| creator | TAKASUGI MASATAKA OKUBO YUJI HIRAKURI KANJI AYUSAWA NOBUIE FUJIMOTO TAMIO NAKAGAWA SHIBI |
| description | PROBLEM TO BE SOLVED: To use an adsorbing volcanic ash soil granular matter consisting of volcanic ash soil consisting essentially of allophane which can be easily reused to remove phosphorus in water containing phosphorus of a low concentration and to prolong the life of the adsorbing volcanic soil granular matter. SOLUTION: Volcanic ask soil having chemical composition of 18 to 24 wt.% Si, 23 to 29 wt.% Al, and 1 to 5 wt.% Fe and consisting essentially of allophane is granulated to obtain spheroidal granular matter of 0.5 to 0.7 bulk density and >=25% in-water breakdown rate substantially containing no additive. In this method of removing phosphorus from water by using adsorbing volcanic ask soil granular matter consisting of the spheroidal granular matter, after coagulant is added to water to be treated, it is passed through a packed bed of the adsorbing volcanic ask soil granular matter. |
| format | Patent |
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SOLUTION: Volcanic ask soil having chemical composition of 18 to 24 wt.% Si, 23 to 29 wt.% Al, and 1 to 5 wt.% Fe and consisting essentially of allophane is granulated to obtain spheroidal granular matter of 0.5 to 0.7 bulk density and >=25% in-water breakdown rate substantially containing no additive. In this method of removing phosphorus from water by using adsorbing volcanic ask soil granular matter consisting of the spheroidal granular matter, after coagulant is added to water to be treated, it is passed through a packed bed of the adsorbing volcanic ask soil granular matter.</description><edition>7</edition><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>2000</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=20000215&DB=EPODOC&CC=JP&NR=2000042538A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000215&DB=EPODOC&CC=JP&NR=2000042538A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKASUGI MASATAKA</creatorcontrib><creatorcontrib>OKUBO YUJI</creatorcontrib><creatorcontrib>HIRAKURI KANJI</creatorcontrib><creatorcontrib>AYUSAWA NOBUIE</creatorcontrib><creatorcontrib>FUJIMOTO TAMIO</creatorcontrib><creatorcontrib>NAKAGAWA SHIBI</creatorcontrib><title>METHOD OF REMOVING PHOSPHORUS IN WATER</title><description>PROBLEM TO BE SOLVED: To use an adsorbing volcanic ash soil granular matter consisting of volcanic ash soil consisting essentially of allophane which can be easily reused to remove phosphorus in water containing phosphorus of a low concentration and to prolong the life of the adsorbing volcanic soil granular matter. SOLUTION: Volcanic ask soil having chemical composition of 18 to 24 wt.% Si, 23 to 29 wt.% Al, and 1 to 5 wt.% Fe and consisting essentially of allophane is granulated to obtain spheroidal granular matter of 0.5 to 0.7 bulk density and >=25% in-water breakdown rate substantially containing no additive. 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SOLUTION: Volcanic ask soil having chemical composition of 18 to 24 wt.% Si, 23 to 29 wt.% Al, and 1 to 5 wt.% Fe and consisting essentially of allophane is granulated to obtain spheroidal granular matter of 0.5 to 0.7 bulk density and >=25% in-water breakdown rate substantially containing no additive. In this method of removing phosphorus from water by using adsorbing volcanic ask soil granular matter consisting of the spheroidal granular matter, after coagulant is added to water to be treated, it is passed through a packed bed of the adsorbing volcanic ask soil granular matter.</abstract><edition>7</edition><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 OF REMOVING PHOSPHORUS IN WATER |
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