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Limestone Drain Design Criteria in AMD Passive Treatment : Theory, Practice and Hydrogeochemistry Monitoring at Lorraine Mine Site, Temiscamingue.
 

Summary: Limestone Drain Design Criteria in AMD Passive Treatment : Theory, Practice and
Hydrogeochemistry Monitoring at Lorraine Mine Site, Temiscamingue.
Louis R. Bernier
Géoberex Recherche, 236, 24e
Avenue Ile Perrot (Qué), J7V4M9 (514)-425-0544, geoberex@qc.aira.com
Michel Aubertin
Dept. CGM, École Polytechnique, CP 6079 Centre-Ville, Montréal ( Qué) H3C 3A7, michel.aubertin@courriel.polymtl.ca
Anne-Marie Dagenais and Bruno Bussière
UQAT-URSTM 445, boul. De L'Université, Rouyn-Noranda ( Qué), J9X 6H4, Bruno.Bussiere@uqat.uquebec.ca
Louis Bienvenu and Johanne Cyr
MRN 5700, 4e
Avenue Ouest (A-213) Charlesbourg ( Qué) G1H 6R1, louis.bienvenu@mrn.gouv.qc.ca
ABSTRACT
Since 1978, most systematic studies of AMD passive treatment with limestone drains (LD) have dealt with coal
mines in the United States. The authors present in this paper the first results of a triennial study initiated in 1999 on
the performance of LD installed at the Ni-Cu Lorraine old mine site in Temiscamingue during a remediation plan
that involved the installation of a cover with capillary barrier effects (CCBE) over the reactive pyrrhotite-rich
tailings. Typically, a LD is a trench enclosed by impervious materials filled with crushed limestone and may be
oxic or anoxic. Four LD (one filled with marble and 3 with dolomite) were installed at the Lorraine site. The LD
have been in operation since May 1999 and are performing differently. The most contaminated mine effluent flows

  

Source: Aubertin, Michel - Département des génies civil, géologique et des mines, École Polytechnique de Montréal

 

Collections: Engineering; Environmental Management and Restoration Technologies