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Vacuum pyrolysis process for remediation of hydrocarbon‐contaminated soils
Author(s) -
Roy Christian,
de Caumia Bruno,
Blanchette Daniel,
Pakdel Hooshang,
Couture Geneviève,
Schwerdtfeger Annette E.
Publication year - 1994
Publication title -
remediation journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.762
H-Index - 27
eISSN - 1520-6831
pISSN - 1051-5658
DOI - 10.1002/rem.3440050109
Subject(s) - environmental remediation , soil water , environmental science , contamination , waste management , pyrolysis , pollution , combustion , soil contamination , effluent , hydrocarbon , process (computing) , environmental chemistry , environmental engineering , chemistry , soil science , engineering , computer science , ecology , organic chemistry , biology , operating system
A vacuum pyrolysis process was used for the remediation of hydrocarbon–contaminated soils from “Les Vidangeurs de Montréal” site in Mascouche in the province of Québec, near Montréal. Ten samples were tested on a laboratory scale batch reactor, and one sample was tested on a prototype process development unit. The process is simple, efficient, reliable, and economically competitive with other existing technologies. The vacuum pyrolysis process efficiently treated soils contaminated with a variety of pollution levels and types, irrespective of the soil matrix, providing treated soils meeting the A criterion (noncontaminated, residential level) of the Ministry of Environment Québec (MENVIQ). The pyrolytic oil and the noncondensable pyrolytic gases can be used as makeup fuel in the process, because they have a high calorific value and their combustion should not pose any emission problems. The waterphase effluent must be treated before discharge.