Bio-intrusion barrier made of plants p with allelopathic effects to ...

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CCBE Objective : to limit the oxigen migration, hence Acid mine drainage (ADM ) generation How? by maintaining one of the layers at high water saturation level by using the effects of capillary barrier (Aubertin et al. 1995; Dagenais et al. 2005) Concern : good performance in short-term, but not clear long-term g performance (Bussiere et al. 2009) Bio-intrusion Bio intrusion (Trépanier et al. 2006 ; Smirnova et al. 2009-CLRA) Configuration of the CCBE Surface layer Protection layer Drainage layer Moisture retaining layer Support layer Tailings 2FeS 4 2+ 2− + 2 + 7O2 + 2H2O → 2Fe + 4SO4 + H E. Smirnova et al., Amos, 2011
Example : CCBE of the Lorraine mine site ‐Cu‐Zn mine, operating since 1964 to 1968 ‐ 600 000 t of residuals on the area of 15.5 ha ‐ AMD‐generating tailings ‐CCBE constructed in 1998 by the MRNF ‐CCBE CCBE of three layers: 30 cm /50 cm / 30 cm ‐ AMD monitoring ‐Vegetation survey: 2003, 2005, 2007, 2008
Page 1: Bio‐intrusion barrier made of pla
Page 5 and 6: PROBLEMATIC Main riscks associated
Page 7 and 8: Impact of the allelopathic compound
Page 9 and 10: HYPOTHESIS 11. Direct resource comp
Page 11 and 12: THE LTA MINE SITE Territory of 60 h
Page 13 and 14: Recolt and planting of Laurel and L
Page 15 and 16: Plant survival E. Smirnova et al.,
Page 17: Tree root study • Tree root archi

Bio-intrusion barrier made of plants p with allelopathic effects to ...

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