The Future of Tailings Management The Rock-stars 1 www.bestppt.com
History HackMining - Toronto Transporting ore and waste from difficult-to- access areas HackMining - Toronto Reducing the volume of mine tailings 2 www.bestppt.com
Our Team Nicolas Germain Anas Chazi Mohamed Zaki Henry Luan Adam Stanley -Third year mining - Recent Mining Engineering -Mining Engineering - Third year Applied -Third year mining engineer student at Graduate student at McGill Math Student at the engineering student at McGill University University. University of Toronto. McGill University -Civil engineering -Interested in innovation technologist in the bio-mining sector www.bestppt.com 3
Today’s Tailing Dilemma Vast Land Coverage The dams cover huge amounts of land and damage the surrounding ecosystem High Maintenance Costs Risk of Failure Millions are spent by companies to Disasters such as Mount Polley and maintain the stagnant tailing ponds Saramco are ever present concerns Negative Social Repercussions Difficulty of Reclamation Local stakeholders must deal with unsightly and After operations, these ponds must be restored to their dangerous ponds previous state which requires large capital investments 4 www.bestppt.com
Tailing Management of Tomorrow Electrokinetic Geopolymer Road Building & Geosynthetic Grid Geotubes Cement Infrastructure Volume Reduction Reuse of “Waste” Storage and Dewatering Mixed Strategy of Fines 5 www.bestppt.com
Method Mechanics Roads Geopolymer Electrokinetic Geotubes & Geosynthetic Grid Cement Infrastructure Separates water and tailings Customizable dimensions Utilizes industrial waste Road base made of geotubes Exploits behavior of water in an Geopolymer cement provides Durable material Adds NaOH electric field structure Very low energy consumption Contains hazardous byproduct Turns tailings into valuable cement Connects communities compared to alternatives Corrosion resistant up to 600 hours Efficient dewatering of fines Eliminates need for shipping Enhances exploration Grid cracks and desiccates tailings to Impermeable Gives tailings a “second life” Lowers dam footprint permit water accumulation Energy efficient and self Rapid dewatering and Cheap, high quality Allows rural development contained construction material cement and exploration 6 www.bestppt.com
E Electrokinetic Geosynthetic Grid (EGG) Purpose Efficient dewatering & water recycling Method Apply voltage across a grid of positive and negative electrodes Result Water flows to negatively charged cathode and is pumped out Anode (+) + + + + Cathode (-) enveloped in - - - geotextile sleeve Current + + + + Cables www.bestppt.com
Costs of Geopolymer Cement Costs of Geopolymer Cement and OPC Comparison to Portland Cement 251 OPC 191 74 Geopolymer Sodium Hydroxide Costs 49 • NaOH: $125/ton • Concentration: 0.40-0.60 g/cm 3 0 50 100 150 200 250 300 $/m 3 Overall Costs per Cubic Meter Maximum Minimum • Geopolymer: $49-74 • OPC: $191-251 8 www.bestppt.com
Road Development & Cost Analysis Scenario 1 Scenario 2 Scenario 3 • • 11 sma mall ll di diameter (1 (1 m) m) geotu eotubes 2 lar arge di diameter (3 (3 m) m) geot eotubes • 3 La Layers of of 2 geot eotubes as road as oad base base as road as oad base base ma makin ing a a 3x7 m m road oad • • Co Costs: ts: $72,000-98,000* per per 100 m m Co Costs: ts: $49,00 ,000-67,0 ,000* per per 100 m • Co Cost t of of $23-35 mi milli lion on for or a a 65km km road oad 9 www.bestppt.com *High contingency in calculation
Geotubes as Structural Base • Utilized as island perimeter in the Amwaj Islands • Demonstrates versatility of Geotube technology • Adequate mechanical properties for construction material 10 www.bestppt.com
Geotube Utilization – Further though Structural purposes: raising embankment, dams, dykes, etc. Geotubes Dam pond Beached tailings Capturing acid mine drainage and Capture water for reutilization other toxic effluents followed by Reclamation 11 www.bestppt.com
Infrastructure Development Lower Reduction Reclamation in Dam Realized Benefits Effort Cost Unites Communities Government Decrease Grants Footprint Economic Social 12 www.bestppt.com
The Road Ahead Sustainability Value from Waste Enhanced Stakeholder Relations By finding a use for the tailings, Instead of losing money on Minimizing dam impact and traditional tailings tailings, costs can be recouped increasing safety positively management is disrupted impacts local communities Full Scale Investor Generation Method Development Partnerships Optimization Implementation • • Gather feedback and R&D and extensive • After partners have • • data from proof of concept Operational tailing Develop commercial been made, our • stakeholders to Create a prototype roads bring interest relations with third integrated method can produce an road to market from industry players parties be employed increasingly refined product • • Incentives for government grants in innovation and Create deals with producers for their tailings • sustainability Generate interest in rural communities for • Provincial and Federal Government partnerships infrastructure projects • Target exploration and junior companies 13 www.bestppt.com
Corporate Structure EGG Team Tailings Manager On-site Infrastructure Local Workers Developers Operational Manager Legal Team External Infrastructure Local Workers Developer Development Team Experienced Contractors 14 www.bestppt.com
Innovation Potential Geo eotubes, Geo eopolymers & In Infr frastr tructure Electr Ele troki kineti tic Geo Geosyntheti tic Grid Grid • • Proven technology that has yet to reach full potential Cutting edge solution to traditional tailings in the mining industry management • • Potential for tailing recycling Backed by University research and testing • • Modular roads, allowing for easier, quicker Contained units allow for economies of scale construction • On the verge of widespread production • Geotubes can be replaced with loose tailings and reinforced with polymer cement 15 www.bestppt.com
Where are we Today? Geotubes Tailing Roads Proven Probable • Tests show rapid dewatering • Must be prototyped • • Effective in tailings Scaling needs tested containment EGG Geopolymer Proven Proven Prototypes Of course! • Extremely promising • Used in bricks technology • Undeveloped in • Small dewatering industry footprint Exploration Avenues? Montreal Entrepreneur Community (McGill University Hub & Centre de l’innovation ) Governmental Expertise www.bestppt.com
Multiple mining problems tackled Stakeholder Incorporation Unlocking untapped lands www.bestppt.com
SPECIAL THANK YOU TO GET IN TOUCH WITH US! www.bestppt.com
THANK YOU Developed by: QUESTIONS? Mohamed Zaki Nicolas Germain Anas Chazi Henry Luan Adam Stanley www.bestppt.com
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