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1. WO2020223396 - METHOD AND REAGENTS FOR TREATING MATERIALS CONTAMINATED WITH MERCURY, PFAS, OR OTHER CONTAMINANTS

Publication Number WO/2020/223396
Publication Date 05.11.2020
International Application No. PCT/US2020/030538
International Filing Date 29.04.2020
IPC
B09B 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
1Dumping solid waste
B09B 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste into something useful or harmless
B09C 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
CRECLAMATION OF CONTAMINATED SOIL
1Reclamation of contaminated soil
08chemically
CPC
A62D 2101/22
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
2101Harmful chemical substances made harmless, or less harmful, by effecting chemical change
20Organic substances
22containing halogen
A62D 3/36
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
30by reacting with chemical agents
36Detoxification by using acid or alkaline reagents
A62D 3/38
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
30by reacting with chemical agents
38by oxidation; by combustion
B09B 3/0008
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
0008comprising an adsorption step
B09C 1/08
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
CRECLAMATION OF CONTAMINATED SOIL
1Reclamation of contaminated soil
08chemically
Applicants
  • HMR SOLUTIONS, INC. [US]/[US]
Inventors
  • YOST, Karl, William
  • BICKFORD, Jody
Agents
  • CARPENTER, John
Priority Data
62/840,30229.04.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND REAGENTS FOR TREATING MATERIALS CONTAMINATED WITH MERCURY, PFAS, OR OTHER CONTAMINANTS
(FR) PROCÉDÉ ET RÉACTIFS POUR TRAITER DES MATÉRIAUX CONTAMINÉS PAR DU MERCURE, DU PFAS OU D'AUTRES CONTAMINANTS
Abstract
(EN)
A reagent set includes an oxidant, acid, and adsorbent, which is used in a method for reducing the leachability and release of PFAS, mercury, and other contaminants from soils, sediments, and other solid materials or waste when treated materials are exposed to acid rain, snow melt, runoff, landfill leachate, etc. The reagents are mixed with a quantity of contaminated material and water is added as needed in order to reduce the leachability of the contaminants from the treated host material, where the admixture end-product suitably removes contaminants from fluids that contact and/or otherwise permeate and/or pass through and/or around the treated admixture. The reagent set and method of use offer environmental professionals long-term, economically viable waste management solutions for removing contaminants from contamination source areas, spill and manufacturing release sites, impacted media, and landfills, as well as from the fluids that contact reagent-treated material.
(FR)
La présente invention concerne un ensemble de réactifs qui comprend un oxydant, un acide et un adsorbant, utilisé dans un procédé destiné à réduire la lixiviabilité et la libération de PFAS, de mercure et d'autres contaminants des sols, de sédiments et d'autres matériaux solides ou de déchets lorsque des matériaux traités sont exposés à une pluie acide, une fonte de neige, un ruissellement, un lixiviat de décharge, etc. Les réactifs sont mélangés à une quantité de matériau contaminé et de l'eau est ajoutée selon les besoins afin de réduire la lixiviabilité des contaminants à partir du matériau hôte traité, le produit final de mélange éliminant de manière appropriée des contaminants présents dans des fluides qui entrent en contact et/ou sinon pénètrent et/ou passent à travers et/ou autour du mélange traité. L'ensemble de réactifs et le procédé d'utilisation offrent des solutions de gestion des déchets à long terme et économiques aux professionnels de l'environnement, afin d'éliminer des contaminants de zones source de contamination, de sites de libération de déversement et de fabrication, de milieux impactés et de décharges, ainsi que des fluides qui entrent en contact avec un matériau traité avec un réactif.
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