September 12, 2019

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Geosyntec Staff to Present on Remediation of Mine-impacted Water at Annual Mine Reclamation Symposium

Silvia Mancini, Ph.D., P.Geo., Rachel James, and Andrew Holmes, Ph.D. (Ontario) will present on remediation techniques for mine-impacted water at the Annual Mine Reclamation Symposium at the Kimberly Conference Center in Kimberly, British Columbia on September 16-19, 2019.

Silvia is a Principal with more than 14 years of consulting experience in water treatment for the mining, oil and gas, and manufacturing industries. As a mining practice leader in Geosyntec's Canadian operations, she provides project direction and senior support to mining projects. Her focus in the mining sector is on biotreatment options of metals and metalloids and the use of innovative, cost-effective technologies. Silvia continues to be active in research and development of innovative technologies and cost-effective water treatment options through her Adjunct Professorship at the University of Toronto (Earth Sciences).

Rachel has 10 years of experience in aqueous geochemistry in the mining industry, conducting water quality and geochemical investigations in support of all phases of mine life for precious- and base-metal mining projects. Rachel conducts predictive water quality and geochemical modeling, interpretation of surface water and groundwater interactions, and geochemical characterization contributing to decisions on mine material handling and placement to minimize environmental impact. She also leads collaborative investigations to develop, validate, and optimize innovative environmental technology in the mining sector, including design and geochemical investigations for field and laboratory experimentation.

Andrew's expertise includes non-biological approaches for selenium (Se) and arsenic (As) removal from mine-impacted water and brine as well as flue gas desulphurization wastewater using novel engineered photocatalysts. Andrew is well versed in Se analytical techniques for the speciation and quantification of Se to below 1 ug/L with the use of HG-ICP-OES and IC-ICP-MS. Andrew's other research contributions include crude oil contaminated site characterization using nanomaterial enhanced geophysical techniques and targeted delivery of nanomaterials for crude oil abatement.

The 42nd Annual Mine Reclamation Symposium is a joint effort by the British Columbia Technical & Research Committee on Reclamation (BC TRCR) and the Canadian Land Reclamation Association (CLRA). Written papers for oral presentation will address a wide range of reclamation issues from planning to closure.

Conference Participation

Opportunities of Microbial Geochemistry in the Bioremediation of Mine-Impacted Water
Speakers: Silvia Mancini, Rachel James, Geosyntec Consultants
Coauthors: Evan Cox, Len deVlaming, Karen Bechard, Andrzej Przepiora, Florent Risacher
Time: 2:00-2:30 p.m. on Sept. 18, 2019

Nitrogen and Cyanide Compound Removal from Gold Mine Impacted Water using Anammox Bioreactor
Speaker: Rachel James, Geosyntec Consultants
Coauthors: Florent Risacher, Silvia Mancini, Peter Dollar, Phil Dennis, Chris Kennedy, Kevin Coffey
Time: 9:30-10:00 a.m. on Sept. 19, 2019

A non-biological option for selenium removal by photocatalytic reduction of selenite in mine-impacted water containing high concentrations of sulfate and nitrate
Speaker: Andrew Holmes, Geosyntec Consultants
Time: 11:30 a.m.-12:00 p.m. on Sept. 19, 2019

More Information

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