TREATMENT OF HIGH PEROXIDE WASTE STREAMS
A method of reducing a concentration of hydrogen peroxide from wastewater includes diluting the wastewater with water having a lower concentration of hydrogen peroxide than the wastewater to produce a diluted wastewater, contacting the diluted wastewater with a dissolved iron compound at an acidic p...
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| creator | SASSAMAN, Frank L., Jr BERGER, David L KARRS, Stanley R |
| description | A method of reducing a concentration of hydrogen peroxide from wastewater includes diluting the wastewater with water having a lower concentration of hydrogen peroxide than the wastewater to produce a diluted wastewater, contacting the diluted wastewater with a dissolved iron compound at an acidic pH to form a partially treated wastewater having a lower concentration of hydrogen peroxide than the diluted wastewater, and precipitating iron solids from the partially treated wastewater by raising a pH of the partially treated wastewater to form a neutralized partially treated wastewater.
Cette invention concerne un procédé de réduction de la concentration de peroxyde d'hydrogène contenue dans des eaux usées comprenant la dilution des eaux usées avec une eau ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées pour obtenir des eaux usées diluées, la mise en contact des eaux usées diluées avec un composé de fer dissous ayant un pH acide pour former des eaux usées partiellement traitées ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées diluées, et la précipitation de fractions solides de fer à partir des eaux usées partiellement traitées par élévation du pH desdites eaux usées partiellement traitées afin de former des eaux usées partiellement traitées neutralisées. |
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Cette invention concerne un procédé de réduction de la concentration de peroxyde d'hydrogène contenue dans des eaux usées comprenant la dilution des eaux usées avec une eau ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées pour obtenir des eaux usées diluées, la mise en contact des eaux usées diluées avec un composé de fer dissous ayant un pH acide pour former des eaux usées partiellement traitées ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées diluées, et la précipitation de fractions solides de fer à partir des eaux usées partiellement traitées par élévation du pH desdites eaux usées partiellement traitées afin de former des eaux usées partiellement traitées neutralisées.</description><language>eng ; fre</language><subject>CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>2017</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=20171207&DB=EPODOC&CC=WO&NR=2017210094A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171207&DB=EPODOC&CC=WO&NR=2017210094A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SASSAMAN, Frank L., Jr</creatorcontrib><creatorcontrib>BERGER, David L</creatorcontrib><creatorcontrib>KARRS, Stanley R</creatorcontrib><title>TREATMENT OF HIGH PEROXIDE WASTE STREAMS</title><description>A method of reducing a concentration of hydrogen peroxide from wastewater includes diluting the wastewater with water having a lower concentration of hydrogen peroxide than the wastewater to produce a diluted wastewater, contacting the diluted wastewater with a dissolved iron compound at an acidic pH to form a partially treated wastewater having a lower concentration of hydrogen peroxide than the diluted wastewater, and precipitating iron solids from the partially treated wastewater by raising a pH of the partially treated wastewater to form a neutralized partially treated wastewater.
Cette invention concerne un procédé de réduction de la concentration de peroxyde d'hydrogène contenue dans des eaux usées comprenant la dilution des eaux usées avec une eau ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées pour obtenir des eaux usées diluées, la mise en contact des eaux usées diluées avec un composé de fer dissous ayant un pH acide pour former des eaux usées partiellement traitées ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées diluées, et la précipitation de fractions solides de fer à partir des eaux usées partiellement traitées par élévation du pH desdites eaux usées partiellement traitées afin de former des eaux usées partiellement traitées neutralisées.</description><subject>CHEMISTRY</subject><subject>COMPOUNDS THEREOF</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAICXJ1DPF19QtR8HdT8PB091AIcA3yj_B0cVUIdwwOcVUIBqnwDeZhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfHh_kYGhuZGhgYGliaOhsbEqQIAmoAk_w</recordid><startdate>20171207</startdate><enddate>20171207</enddate><creator>SASSAMAN, Frank L., Jr</creator><creator>BERGER, David L</creator><creator>KARRS, Stanley R</creator><scope>EVB</scope></search><sort><creationdate>20171207</creationdate><title>TREATMENT OF HIGH PEROXIDE WASTE STREAMS</title><author>SASSAMAN, Frank L., Jr ; BERGER, David L ; KARRS, Stanley R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2017210094A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2017</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS THEREOF</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>SASSAMAN, Frank L., Jr</creatorcontrib><creatorcontrib>BERGER, David L</creatorcontrib><creatorcontrib>KARRS, Stanley R</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SASSAMAN, Frank L., Jr</au><au>BERGER, David L</au><au>KARRS, Stanley R</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TREATMENT OF HIGH PEROXIDE WASTE STREAMS</title><date>2017-12-07</date><risdate>2017</risdate><abstract>A method of reducing a concentration of hydrogen peroxide from wastewater includes diluting the wastewater with water having a lower concentration of hydrogen peroxide than the wastewater to produce a diluted wastewater, contacting the diluted wastewater with a dissolved iron compound at an acidic pH to form a partially treated wastewater having a lower concentration of hydrogen peroxide than the diluted wastewater, and precipitating iron solids from the partially treated wastewater by raising a pH of the partially treated wastewater to form a neutralized partially treated wastewater.
Cette invention concerne un procédé de réduction de la concentration de peroxyde d'hydrogène contenue dans des eaux usées comprenant la dilution des eaux usées avec une eau ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées pour obtenir des eaux usées diluées, la mise en contact des eaux usées diluées avec un composé de fer dissous ayant un pH acide pour former des eaux usées partiellement traitées ayant une concentration de peroxyde d'hydrogène inférieure à celle desdites eaux usées diluées, et la précipitation de fractions solides de fer à partir des eaux usées partiellement traitées par élévation du pH desdites eaux usées partiellement traitées afin de former des eaux usées partiellement traitées neutralisées.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | TREATMENT OF HIGH PEROXIDE WASTE STREAMS |
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