B - Operations – Transporting – 09 – C
Patent
B - Operations, Transporting
09
C
B09C 1/06 (2006.01)
Patent
CA 2569621
The present invention relates to a method for cleaning a soil containing contaminants comprising the steps of introducing at least one heat-conductive pipe, which is in working condition under negative pressure, and provided with perforations in said soil, heating said soil by thermal conduction by circulating a heated fluid through said heat-conductive pipe thereby obtaining a contaminant vapor; whereby said contaminant vapor is forced into the heat- conductive pipe through a negative pressure present herein, further transporting said contaminant vapor in said heat-conductive pipe out of the soil, and incinerating said contaminant vapor in order to at least partly remove said soil contaminants. The method also involves the step of re-using the heat energy obtained by incinerating said contaminant vapor for heating said soil in order to vaporize the remaining contaminants in said soil. The present invention also relates to a nearly closed loop system for cleaning a soil containing contaminants.
L'invention concerne un procédé permettant de nettoyer un sol contenant des agents polluants. Ce procédé comprend les étapes consistant à introduire au moins un tuyau thermoconducteur, lequel fonctionne sous une pression négative et possède des perforations dans le sol, à chauffer le sol par conduction thermique en faisant circuler un fluide chauffé à travers le tuyau thermoconducteur pour obtenir ainsi une vapeur d'agents polluants, cette vapeur d'agents polluants étant forcée dans le tuyau thermoconducteur à travers une pression négative, la vapeur d'agents contaminants étant ainsi transportée dans le tuyau thermoconducteur à l'extérieur du sol, puis à incinérer cette vapeur d'agents polluants afin d'éliminer au moins en partie les agents polluants du sol. Ce procédé comprend également l'étape consistant à utiliser une nouvelle fois la chaleur obtenue par incinération de la vapeur d'agents polluants pour chauffer le sol afin de vaporiser les agents polluants restant dans le sol. L'invention concerne enfin également un système en boucle quasi fermée permettant de nettoyer un sol contenant des agents polluants.
Falcinelli Ugo
Haemers Jan
Zwaan Harry
D2g
Deep Green S.a.
Smart & Biggar
LandOfFree
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