Process for soil decontamination by oxidation and vacuum...

B - Operations – Transporting – 09 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B09C 1/08 (2006.01) B09C 1/00 (2006.01) C02F 1/20 (2006.01) C02F 1/72 (2006.01)

Patent

CA 2182668

A process for in situ treatment of a contaminated subsurface zone of the each containing volatile liquid or semisolid organic contaminants, semivolatile liquid or semisolid organic contaminants and/or nonvolatile organic contaminants in liquid, semisolid and/or solidified form which comprises treating said contaminants with an oxidant (6) such as hydrogen peroxide and conducting vacuum extraction (4) to remove volatilized contaminants (8), volatilized oxidation products of contaminants and/or liquid oxidation products of contaminants. The oxidant (6) application may be made in a contaminated vadose zone (11), a contaminated subsurface capillary fringe or beneath the surface of a contaminated water table. Vacuum extraction (4) may be conducted in the contaminated zone itself or, in the vadose zone (11) directly above the contaminated capillary fringe or the contaminated water table and may be utilized, e.g., to withdraw water containing oxidation products of contaminants. The treatment may enhance natural biodegradation of some contaminants and may be conducted in a variety of ways.

L'invention concerne un procédé de traitement in situ d'une zone souterraine du sol contaminée par des contaminants organiques volatils, liquides ou semi-solides, des contaminants organiques semi-volatils, liquides ou semi-solides et/ou des contaminants organiques non volatils sous forme liquide, semi-solide et/ou solidifiée. Dans ce procédé, on traite ces contaminants avec un oxydant (6) tel que le peroxyde d'hydrogène et on effectue une extraction sous vide (4) pour enlever les contaminants volatilisés (8), les produits d'oxydation volatilisés des contaminants et/ou les produits d'oxydation liquides des contaminants. On peut appliquer l'oxydant (6) dans la zone vadose contaminée (11), dans la frange capillaire contaminée, ou sous la surface de la nappe d'eau contaminée. On peut effectuer l'extraction par le vide (4) dans la zone contaminée elle-même, dans la zone vadose (11) directement au-dessus de la frange capillaire contaminée ou de la nappe d'eau contaminée et on peut utiliser cette extraction, par exemple, pour extraire l'eau contenant des produits d'oxydation des contaminants. Le traitement peut améliorer la biodégradation naturelle de certains contaminants et il peut être mis en oeuvre de différentes manières.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for soil decontamination by oxidation and vacuum... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for soil decontamination by oxidation and vacuum..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for soil decontamination by oxidation and vacuum... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1599791

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.