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1. WO2001062360 - METHODS AND APPARATUS FOR PRESSURE STABILIZED REMOVAL OF CONTAMINANTS FROM SOLUTION

Publication Number WO/2001/062360
Publication Date 30.08.2001
International Application No. PCT/US2001/005742
International Filing Date 23.02.2001
Chapter 2 Demand Filed 14.12.2001
IPC
C02F 1/52 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
52by flocculation or precipitation of suspended impurities
C02F 1/62 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
58by removing specified dissolved compounds
62Heavy metal compounds
C02F 1/72 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
C02F 1/74 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
74with air
C02F 1/76 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
76with halogens or compounds of halogens
C02F 1/78 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
78with ozone
CPC
C02F 1/5245
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
52by flocculation or precipitation of suspended impurities
5236using inorganic agents
5245using basic salts, e.g. of aluminium and iron
C02F 1/62
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
58by removing specified dissolved compounds
62Heavy metal compounds
C02F 1/722
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
722Oxidation by peroxides
C02F 1/74
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
74with air
C02F 1/76
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
76with halogens or compounds of halogens
C02F 1/78
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
78with ozone
Applicants
  • WATERMARK TECHNOLOGIES, LLC [US]/[US]
Inventors
  • HIGBY, Loren, P.
Agents
  • KRIEGER, Michael, F.
Priority Data
09/570,80515.05.2000US
60/184,98325.02.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND APPARATUS FOR PRESSURE STABILIZED REMOVAL OF CONTAMINANTS FROM SOLUTION
(FR) PROCEDES ET APPAREILS DE SUPPRESSION PAR PRESSION STABILISEE DE CONTAMINANTS PRESENTS DANS UNE SOLUTION
Abstract
(EN) Embodiments of the present invention relate to methods and systems for removal of contaminants from aqueous solutions. The methods and systems of these embodiments are particularly suited to removal of arsenic species as well as transition-metals, post-transition-metals, phosphates and other contaminants in aqueous solutions. The methods and systems of embodiments of the present invention provide for the addition of a reagent to a contaminated solution in combination with a pressurization process and a depressurization process. Contaminant particulates and solids produced in these processes may be removed by conventional separation techniques.
(FR) L'invention concerne des procédés et des systèmes de suppression par pression stabilisée de contaminants présents dans des solutions aqueuses qui sont spécialement indiqués pour retirer l'arsenic et les métaux de transition, les métaux de post-transition, les phosphates et d'autres contaminants contenus dans les solutions aqueuses. Les procédés et les systèmes de cette invention ont également pour objectif d'ajouter un réactif à une solution contaminée par pressurisation et dépressurisation. Les particules contaminantes et les solides générés au cours de ces opérations peuvent être supprimés par des techniques de séparation classiques.
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