BR9802227A - Método para produzir o cromo hexavalente em sólidos, sedimentos, despejos industriais e outros materiais contaminados usando-se ácido ascórbico - Google Patents

Método para produzir o cromo hexavalente em sólidos, sedimentos, despejos industriais e outros materiais contaminados usando-se ácido ascórbico

Info

Publication number
BR9802227A
BR9802227A BR9802227-0A BR9802227A BR9802227A BR 9802227 A BR9802227 A BR 9802227A BR 9802227 A BR9802227 A BR 9802227A BR 9802227 A BR9802227 A BR 9802227A
Authority
BR
Brazil
Prior art keywords
materials
ascorbic acid
soils
carrying
sediments
Prior art date
Application number
BR9802227-0A
Other languages
English (en)
Inventor
Bruce R James
Original Assignee
Chemical Land Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemical Land Holdings Inc filed Critical Chemical Land Holdings Inc
Publication of BR9802227A publication Critical patent/BR9802227A/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/37—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state

Landscapes

  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

"MéTODO PARA REDUZIR O CROMO HEXAVALENTE EM SóLIDOS, SEDIMENTOS, DESPEJOS INDUSTRIAIS E OUTROS MATERIAIS CONTAMINADOS USANDO-SE áCIDO ASCóRBICO" A concentração de cromo hexavalente potencialmente tóxico, {Cr(VI)}, em solos / materiais transportando cromo existente na forma de solos, lodos, sedimentos, aterros, despejos industriais, ou outros materiais é diminuída por aplicação e mistura de um simples agente redutor, ácido ascórbico, para efetuar redução química de Cr(VI) para um estado de valência menos tóxico. ácido ascórbico é adicionado em temperatura ambiente em solução ou pasta aquosa e misturado com materiais / solos transportando Cr(VI) em quantidades baseadas em resultados de teste de amostras representativas do material a ser tratato. ácido ascórbico também pode ser adicionado em uma forma seca se suficiente umidade está presente nos solos / materiais para permitir dissolução do ácido ascórbico e reação com o Cr(VI) no material. A porcentagem de redução da concentração de Cr(VI) é maior e é obtida mais rapidamente do que anteriormente reportado usando-se outros agentes redutores químicos orgânicos. O processo, que não requer modificação do pH do material transportando Cr(VI), pode ser aplicado in situ a materiais transportando Cr(VI), incluindo solos insaturados e/ou saturados na mesma coluna de solo, usando-se equipamento de mistura apropriado para a profundidade de solo ou material a ser tratado, e pode ser aplicado a materiais que são estocados em um recipiente ou foram escavados do chão ou outro repositório.
BR9802227-0A 1997-06-26 1998-06-25 Método para produzir o cromo hexavalente em sólidos, sedimentos, despejos industriais e outros materiais contaminados usando-se ácido ascórbico BR9802227A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/883,243 US5951457A (en) 1997-06-26 1997-06-26 Method to reduce hexavelant chromium in soils, sediments, industrial waste and other contaminated materials using ascorbic acid

Publications (1)

Publication Number Publication Date
BR9802227A true BR9802227A (pt) 2001-03-20

Family

ID=25382255

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9802227-0A BR9802227A (pt) 1997-06-26 1998-06-25 Método para produzir o cromo hexavalente em sólidos, sedimentos, despejos industriais e outros materiais contaminados usando-se ácido ascórbico

Country Status (8)

Country Link
US (2) US5951457A (pt)
JP (1) JPH11104611A (pt)
AR (1) AR009880A1 (pt)
AU (1) AU8268598A (pt)
BR (1) BR9802227A (pt)
DE (1) DE19828665C2 (pt)
GB (1) GB2326878B (pt)
WO (1) WO1999000159A1 (pt)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE43350E1 (en) 1995-05-05 2012-05-08 Think Village-Kerfoot, Llc Microporous diffusion apparatus
US5951457A (en) * 1997-06-26 1999-09-14 Chemical Land Holdings. Inc. Method to reduce hexavelant chromium in soils, sediments, industrial waste and other contaminated materials using ascorbic acid
JP3190292B2 (ja) * 1997-10-29 2001-07-23 日英ハードクローム工業株式会社 クロムめっきにおける不純物回収電気分解槽に沈殿したスラッジの無害化方法
DE19923171A1 (de) * 1999-05-20 2000-11-23 Rainer Haas Verfahren zur Mobilisation von Metalloiden und Schwermetallen mit Gasen
US6210078B1 (en) * 1999-06-02 2001-04-03 Southern Company Services Methods for the in situ removal of a contaminant from soil
US6623646B2 (en) * 2000-05-16 2003-09-23 James Daniel Bryant In-situ chemical oxidation-reduction and precipitation of heavy metals in soils and groundwater
US6607474B2 (en) * 2000-06-30 2003-08-19 Rmt, Inc. Method for stabilizing chromium-contaminated materials
US8557110B2 (en) * 2000-07-06 2013-10-15 Thinkvillage-Kerfoot, Llc Groundwater and subsurface remediation
US6758633B2 (en) * 2001-09-06 2004-07-06 Gannett Fleming, Inc. In-situ process for detoxifying hexavalent chromium in soil and groundwater
US7547388B2 (en) * 2004-07-20 2009-06-16 Think Village-Kerfoot, Llc Superoxidant poiser for groundwater and soil treatment with in-situ oxidation-reduction and acidity-basicity adjustment
US8302939B2 (en) * 2003-02-12 2012-11-06 Thinkvillage-Kerfoot, Llc Soil and water remediation system and method
DE10335363B3 (de) * 2003-08-01 2005-04-07 Dr. Paul Lohmann Gmbh Kg Verwendung einer Lösung und Verfahren zur Herstellung eines Mittels zur Reduzierung von Chromanteilen in einer Zementverbindung sowie danach hergestelltes Mittel
US6872247B1 (en) * 2003-10-07 2005-03-29 W. R. Grace & Co.-Conn. Amine-based, hexavalent chromium reducing agents for cement
US7166228B2 (en) * 2003-10-15 2007-01-23 U.S. Environmental Protection Agency Method of treating a subsurface formation with ferrous iron to reduce contaminants to harmless species
WO2005056860A2 (en) * 2003-11-21 2005-06-23 W. R. Grace & Co.-Conn Sulfate dispersion chromate reducer
US8771507B2 (en) * 2003-12-24 2014-07-08 Thinkvillage-Kerfoot, Llc Directional microporous diffuser and directional sparging
JP2007520416A (ja) * 2004-02-04 2007-07-26 ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット 相互粉砕セメントに対する液体添加物
US7344337B2 (en) * 2004-03-26 2008-03-18 Ann Arbor Technical Services Geomorphology environmental remediation process and systems
WO2005105306A2 (en) * 2004-04-30 2005-11-10 Basell Polyolefine Gmbh Process for the reduction and safe disposal of an activated chromium oxide catalyst
US7232483B2 (en) 2005-02-01 2007-06-19 W. R. Grace & Co.-Conn. Cement composition having chromium reducer
CN101115533B (zh) * 2005-02-08 2012-01-04 铝业科技墨西哥可变动资本额股份有限公司 将含六价铬的危险废物转化成非危险废物的方法和装置
US7452163B2 (en) * 2005-03-31 2008-11-18 The Trustees Of Stevens Institute Of Technology Method of treatment, stabilization and heave control for chromite ore processing residues (COPR) and chromium contaminated soils
US20070237493A1 (en) * 2006-03-24 2007-10-11 I-Sho Limited Providing user access to digital content data
ITVR20060128A1 (it) * 2006-08-03 2008-02-04 Fabio Longoni Procedimento per la bonifica di siti inquinati da cromo esavalente
US20080103348A1 (en) * 2006-10-30 2008-05-01 Entact Services, Llc Processes for treatment of solid wastes containing heavy metals
JP2008231388A (ja) * 2007-03-20 2008-10-02 Chemical Yamamoto:Kk 六価クロムを含有する特定廃棄物の無害化処理剤
JP2008238150A (ja) * 2007-03-27 2008-10-09 Chemical Yamamoto:Kk 六価クロムを含有する汚染土壌並びに産業廃棄物用無害化処理剤
DE102007045337B4 (de) * 2007-09-22 2021-01-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Schutz vor Chrom(VI)-haltigem Staub
US20090232603A1 (en) * 2008-03-12 2009-09-17 Groundwater & Environmental Services, Inc. In Situ Remediation Methods Using Electron Donors And Dispersant Gas
US8703078B2 (en) * 2010-01-13 2014-04-22 ARCADIS Corporate Services, Inc. Method for biogeochemical stabilization of chromate-impacted solids
EP2691158A1 (en) * 2011-03-30 2014-02-05 Battelle Memorial Institute Formulations and methods to reduce hexavalent chrome contamination
US9694401B2 (en) 2013-03-04 2017-07-04 Kerfoot Technologies, Inc. Method and apparatus for treating perfluoroalkyl compounds
TWI481568B (zh) 2013-08-16 2015-04-21 Nat Univ Chung Hsing Treatment method comprising chemical reduction sites of the pollutants
FR3019170B1 (fr) 2014-03-28 2019-10-11 Ms Developpement Et Participations Procede de traitement du chrome present dans des effluents et installation correspondante
JP6284460B2 (ja) * 2014-09-16 2018-02-28 株式会社神戸製鋼所 六価クロム溶出抑制方法
JP2016121251A (ja) * 2014-12-24 2016-07-07 蜷川　博生 六価クロム低減剤
JP6602237B2 (ja) * 2016-03-09 2019-11-06 株式会社神戸製鋼所 浄化処理剤及び浄化処理方法
DE102016004819A1 (de) * 2016-04-21 2017-10-26 EMAG GmbH & Co. KG Verfahren zum Entfernen von Chromverbindungen aus Elektrolytlösungen
US11154850B2 (en) * 2017-12-14 2021-10-26 Clariant Corporation Cr6 reduction in fluidized bed
JP6613395B2 (ja) * 2018-02-02 2019-12-04 株式会社津田沼技研 六価クロム還元剤
WO2020013037A1 (ja) * 2018-07-09 2020-01-16 シチズン時計株式会社 ６価クロム処理剤、６価クロムを含む汚染物質の処理方法および６価クロムを含む骨粉の処理方法
TW202035019A (zh) * 2018-11-13 2020-10-01 瑞士商克萊瑞特國際股份有限公司 氧化鋁上含鉻之脫氫觸媒及其製備與使用之方法
CN109967024B (zh) * 2019-04-10 2022-03-18 苏州科技大学 一种利用维生素c和绿茶合成纳米零价铁的方法及原位修复方法
JP7261703B2 (ja) * 2019-08-30 2023-04-20 日立造船株式会社 重金属含有灰の処理方法
CN113828630B (zh) * 2021-10-19 2022-09-09 重庆大学 一种六价铬污染土壤的修复方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784669A (en) * 1972-10-03 1974-01-08 Us Interior Recovery of metal values from chrome etching solutions
JPS5322867A (en) * 1976-08-16 1978-03-02 Matsumuragumi Kk Method of depolluting industrial waste containing hexahydric chromium
IT1130595B (it) * 1980-05-12 1986-06-18 Stoppani Luigi Spa Procedimento continuo per l'eleminazione di cromo da acque di rifiuto e la valrizzazione del cromo ricuperato
US4610895A (en) * 1984-02-01 1986-09-09 Shipley Company Inc. Process for metallizing plastics
DE4209180A1 (de) * 1992-03-20 1993-09-23 Schwarze Alois Arnold Verfahren zur beseitigung von schwermetallen aus waessrigen medien
US5285000A (en) * 1992-11-12 1994-02-08 Klaus Schwitzgebel Composition and process for organic and metal contaminant fixation in soil
IL109654A (en) * 1993-06-04 1999-08-17 Phytotech Inc Phytoremediation of metals
US5397478A (en) * 1993-08-13 1995-03-14 Sevenson Environmental Services, Inc. Fixation and stabilization of chromium in contaminated materials
DE4444033A1 (de) * 1994-12-10 1996-07-18 Biolipsia Gmbh Beratung Analyt Verfahren zur Entgiftung von chromathaltigem Bauschutt oder Erdreich oder sonstigen deponiefähigen Feststoffen
DE19510463A1 (de) * 1995-03-25 1996-09-26 Rdw Abfallwirtschaft Gmbh Verfahren zur Verminderung der in einer Wärmespeicherstein-Substanz enthaltenen Chrom-VI-Verbindungen auf einen deponiefähigen oder die Recyclierung ermöglichenden Gehalt und danach hergestellte recyclierfähige Wärmespeichersubstanz
DE19520289C1 (de) * 1995-06-02 1997-02-06 Howe Bau & Umweltschutz Gmbh Verfahren zum selektiven Entfernen von Chromat und wasserlöslichen organischen Schadstoffen
JP3622097B2 (ja) * 1996-02-26 2005-02-23 株式会社ケミカル山本 含クロム合金鋼溶接部並びにその周辺の処理方法
US5951457A (en) * 1997-06-26 1999-09-14 Chemical Land Holdings. Inc. Method to reduce hexavelant chromium in soils, sediments, industrial waste and other contaminated materials using ascorbic acid

Also Published As

Publication number Publication date
US5951457A (en) 1999-09-14
AR009880A1 (es) 2000-05-03
DE19828665C2 (de) 2003-03-20
DE19828665A1 (de) 1999-01-07
US6221002B1 (en) 2001-04-24
GB9812811D0 (en) 1998-08-12
JPH11104611A (ja) 1999-04-20
WO1999000159A1 (en) 1999-01-07
AU8268598A (en) 1999-01-19
GB2326878B (en) 2001-09-26
GB2326878A (en) 1999-01-06

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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