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1. WO1990014222 - LEAKPROOFING FOR HAZARDOUS WASTE

Publication Number WO/1990/014222
Publication Date 29.11.1990
International Application No. PCT/US1990/002822
International Filing Date 17.05.1990
Chapter 2 Demand Filed 06.12.1990
IPC
B09B 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
1Dumping solid waste
E02D 31/00 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
31Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
CPC
B09B 1/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
1Dumping solid waste
E02D 31/004
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
31Protective arrangements for foundations or foundation structures
002Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
004Sealing liners
Applicants
  • PARAMOUNT TECHNICAL PRODUCTS INC. [US]/[US]
  • McGROARTY, Bryan, M. [US]/[US]
Inventors
  • McGROARTY, Bryan, M.
  • ALTHER, George, R.
Agents
  • WESTMAN, Nickolas, E.
Priority Data
354,27118.05.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LEAKPROOFING FOR HAZARDOUS WASTE
(FR) ETANCHEITE POUR DECHETS DANGEREUX
Abstract
(EN)
A liner (15, 25, 40) to prevent transmission of hydrocarbons from one location to another and from seeping into the ground has a flexible backing sheet (17, 26, 91) of suitable size which has one or more layers (16, 27, 42) of particles of clay or other minerals, which serves as an absorbent for hazardous waste volatiles which penetrate the flexible sheet. The mineral particles (16, 27, 42) act as a gas chromatograph and selectively gel or swell to form a leakproof layer. The materials that are prevented from passing the liner (15, 25, 40) are components such as toluene, benzene, trichloroethylene, and the like found in hazardous waste. The liner (15, 25, 40) also acts as a sealant for fuel tanks and ponds.
(FR)
Une garniture (15, 25, 40) destinée à empêcher le passage d'hydrocarbures d'un endroit à un autre, et à en empêcher l'infiltration dans le sol, comporte une feuille de support souple (17, 26, 91) d'une taille adaptée, comprenant une ou plusieurs couches (16, 27, 42) de particules d'argile ou d'autres minéraux, servant d'absorbants pour des produits volatils de déchets dangereux pénétrant dans la feuille souple. Lesdites particules minérales (16, 27, 42) font office de chromatographe de gaz et se gélifient ou gonflent sélectivement afin de former une couche d'étanchéité. Les matières que l'on empêche de passer à travers la garniture (15, 25, 40) sont des composants tels que le toluène, le benzène, le trichloroéthylène, et analogue trouvés dans des déchets dangereux. Ladite garniture (15, 25, 40) fait également office de matière d'étanchéité pour des réservoirs de combustibles et des bassins d'évacuation.
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