Project to Implement a Processing Plant for Spent Potlining in Jonquière

Project to Implement a Processing Plant for Spent Potlining in Jonquière

Project to implement a processing plant for spent potlining in Jonquière Comprehensive Study Report (document prepared by Tecsult Inc.) JANUARY 2006 Project to implement a processing plant for spent potlining in Jonquière i Comprehensive Study Report TABLE OF CONTENT page 1 SUMMARY................................................................................................................... 1-1 1.1 Background.................................................................................................................. 1-1 1.2 The Issue ..................................................................................................................... 1-1 1.3 Project Description....................................................................................................... 1-2 1.3.1 Construction.............................................................................................. 1-2 1.3.2 Operating Activities ................................................................................... 1-2 1.3.2.1 Pot Lining Processing ............................................................................... 1-2 1.3.2.2 Recovering the Condensate ..................................................................... 1-3 1.3.2.3 Vapour Production .................................................................................... 1-3 1.3.2.4 Cooling Tower........................................................................................... 1-3 1.3.3 Supply and Transportation........................................................................ 1-4 1.3.4 Storage Site .............................................................................................. 1-4 1.4 Alternatives and Implementation Methods................................................................... 1-4 1.5 Public Consultation ...................................................................................................... 1-5 1.5.1 By the Proponent ...................................................................................... 1-5 1.5.2 Quebec’s Environment Quality Act ........................................................... 1-5 1.5.3 Canadian Environmental Assessment Act................................................ 1-5 1.6 Description of the Receiving Environment ................................................................... 1-6 1.6.1 Physical Environment ............................................................................... 1-6 1.6.1.1 Hydrography ............................................................................................. 1-6 1.6.1.2 Industrial Waste Disposal Sites................................................................. 1-6 1.6.1.3 Atmospheric Environment......................................................................... 1-6 1.6.1.4 Noise Environment.................................................................................... 1-7 1.6.1.5 Flora and Fauna........................................................................................ 1-7 1.7 Human Environment .................................................................................................... 1-8 1.8 Impacts and Mitigation Measures ................................................................................ 1-8 1.8.1 Soil, Surface Water and Groundwater: Operations................................... 1-8 1.8.2 Atmospheric Environment......................................................................... 1-9 1.8.2.1 Construction Period .................................................................................. 1-9 1.8.2.2 Operating Period....................................................................................... 1-9 1.8.2.3 Cumulative Impacts .................................................................................. 1-9 1.8.3 Greenhouse Effect .................................................................................. 1-10 1.8.4 Hydrology and Water Quality .................................................................. 1-10 1.8.4.1 Water Resources .................................................................................... 1-10 1.8.4.2 Impacts of Liquid Discharges.................................................................. 1-11 1.8.5 Waste Management Site......................................................................... 1-11 1.8.6 Ambient Noise Environment ................................................................... 1-11 1.8.7 Biological Environment ........................................................................... 1-12 1.8.8 Human Environment ............................................................................... 1-12 1.8.8.1 Traffic ...................................................................................................... 1-12 1.8.8.2 Aesthetics and Landscape...................................................................... 1-12 1.8.8.3 Psychosocial Impact ............................................................................... 1-12 1.8.8.4 Health...................................................................................................... 1-12 1.8.9 Security ................................................................................................... 1-13 1.8.9.1 Security Measures .................................................................................. 1-13 1.8.9.2 Emergency Response Plan .................................................................... 1-14 Project to implement a processing plant for spent potlining in Jonquière ii Comprehensive Study Report TABLE OF CONTENT page 1.8.10 Economic Spinoffs .................................................................................. 1-14 1.9 Monitoring and Follow-Up Program ........................................................................... 1-18 2 INTRODUCTION.......................................................................................................... 2-1 3 PROJECT DESCRIPTION........................................................................................... 3-1 3.1 Description of the Processing Plant’s Technical Features ........................................... 3-1 3.1.1 Development and Construction Activities.................................................. 3-1 3.1.1.1 Construction Work .................................................................................... 3-1 3.1.1.2 Raw Water Supply for the Plant................................................................ 3-2 3.1.1.3 Leachates ................................................................................................. 3-2 3.1.1.4 Natural Gas Supply................................................................................... 3-3 3.1.1.5 Electrical Supply ....................................................................................... 3-3 3.1.1.6 Vapour Supply .......................................................................................... 3-3 3.1.1.7 Schedule ................................................................................................... 3-3 3.1.2 Operational Activities at the Plant ............................................................. 3-3 3.1.2.1 Processing Capacity ................................................................................. 3-8 3.1.2.2 Storage of Raw Materials.......................................................................... 3-8 3.1.2.3 Crushing.................................................................................................... 3-9 3.1.2.4 Water and Caustic Leaching................................................................... 3-10 3.1.2.5 Cyanide Destruction................................................................................ 3-11 3.1.2.6 Evaporation, Crystallization and Causticization ...................................... 3-11 3.1.2.7 Recovering the Condensate ................................................................... 3-12 3.1.2.8 Vapour Production .................................................................................. 3-12 3.1.2.9 Cooling Tower......................................................................................... 3-12 3.2 Description of Waste and Hazards............................................................................. 3-12 3.2.1 Mass Balance ......................................................................................... 3-12 3.2.2 Air Emissions .......................................................................................... 3-16 3.2.2.1 Description .............................................................................................. 3-16 3.2.2.2 Respecting Discharge Standards............................................................ 3-19 3.2.3 Liquid Discharges ................................................................................... 3-20 3.2.4 Solid Discharges ..................................................................................... 3-24 3.2.4.1 Iron Oxides.............................................................................................. 3-24 3.2.4.2 Descaling Residues ................................................................................ 3-25 3.2.4.3 Carbon and Inert Materials...................................................................... 3-25 3.3 Supplies, Transportation and Traffic .......................................................................... 3-25 3.3.1 Supply of Spent Pot Lining.....................................................................

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