TREATMENT OF GEOTHERMAL HOT WATER
PURPOSE:To reduce the precipitation and the adhesion of dissolved silica to machineries, by a method wherein dissolved silica in geothermal hot water containing dissolved silica in an oversaturated state is grown to a particle with a specific particle size which is in turn separated from hot water b...
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| creator | HAGIO MICHIYASU KOMATSU MICHIO SATOU GOROU NISHIDA HIROYASU ARIMA YUUSAKU TANAKA YOSHITSUNE |
| description | PURPOSE:To reduce the precipitation and the adhesion of dissolved silica to machineries, by a method wherein dissolved silica in geothermal hot water containing dissolved silica in an oversaturated state is grown to a particle with a specific particle size which is in turn separated from hot water by an ultrafiltration membrane. CONSTITUTION:In utilizing geothermal hot water, soluble oversaturated silica in hot water is subjected to colloid growth or coagulation to be grown to a particle with a particle size of 5mmu or more which is in turn separated by using an ultrafiltration membrane to reduce the precipitation of dissolved silica in the filtrate to machineries. In this case, a temp. in colloid growth conditions is pref. about 40-100 deg.C and, in forming and growing a secondary coagulation particle by adding a coagulant, as the coagulant, an Al type, an Fe type, a Ca type or an org. amines are effective. |
| format | Patent |
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CONSTITUTION:In utilizing geothermal hot water, soluble oversaturated silica in hot water is subjected to colloid growth or coagulation to be grown to a particle with a particle size of 5mmu or more which is in turn separated by using an ultrafiltration membrane to reduce the precipitation of dissolved silica in the filtrate to machineries. In this case, a temp. in colloid growth conditions is pref. about 40-100 deg.C and, in forming and growing a secondary coagulation particle by adding a coagulant, as the coagulant, an Al type, an Fe type, a Ca type or an org. amines are effective.</description><language>eng</language><subject>CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>1983</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=19831221&DB=EPODOC&CC=JP&NR=S58219986A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19831221&DB=EPODOC&CC=JP&NR=S58219986A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HAGIO MICHIYASU</creatorcontrib><creatorcontrib>KOMATSU MICHIO</creatorcontrib><creatorcontrib>SATOU GOROU</creatorcontrib><creatorcontrib>NISHIDA HIROYASU</creatorcontrib><creatorcontrib>ARIMA YUUSAKU</creatorcontrib><creatorcontrib>TANAKA YOSHITSUNE</creatorcontrib><title>TREATMENT OF GEOTHERMAL HOT WATER</title><description>PURPOSE:To reduce the precipitation and the adhesion of dissolved silica to machineries, by a method wherein dissolved silica in geothermal hot water containing dissolved silica in an oversaturated state is grown to a particle with a specific particle size which is in turn separated from hot water by an ultrafiltration membrane. CONSTITUTION:In utilizing geothermal hot water, soluble oversaturated silica in hot water is subjected to colloid growth or coagulation to be grown to a particle with a particle size of 5mmu or more which is in turn separated by using an ultrafiltration membrane to reduce the precipitation of dissolved silica in the filtrate to machineries. 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CONSTITUTION:In utilizing geothermal hot water, soluble oversaturated silica in hot water is subjected to colloid growth or coagulation to be grown to a particle with a particle size of 5mmu or more which is in turn separated by using an ultrafiltration membrane to reduce the precipitation of dissolved silica in the filtrate to machineries. In this case, a temp. in colloid growth conditions is pref. about 40-100 deg.C and, in forming and growing a secondary coagulation particle by adding a coagulant, as the coagulant, an Al type, an Fe type, a Ca type or an org. amines are effective.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | TREATMENT OF GEOTHERMAL HOT WATER |
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