Engineering Review To Support Mine Dewatering Flows Averaging 2,400 gpm
Project Highlights
A full engineering review was completed for a modular water treatment plant intended to handle mine dewatering flows averaging 2,400 gpm. This effort assessed ultrafiltration and chemical pretreatment design, site layout, and operational strategy.
The work led to confirmation of the treatment approach, identification of key technical risks, and refinement of cost and constructability assumptions. Recommendations were compiled in a standalone technical memorandum with supporting figures and a risk register.
Project Deliverables
- Reviewed pre-feasibility documentation, flow projections, and site water chemistry to validate the design’s suitability under variable seasonal and geochemical conditions.
- Completed process evaluation of unit operations and design flow logic, with a focus on the use of hollow-fibre ultrafiltration, NaOCl oxidation, ferric coagulation, and TMT-15 precipitation for metals removal.
- Assessed modular plant layout, containerized system architecture, and site-specific construction constraints, incorporating recommendations for equipment placement and walkover access.
- Benchmarked capital and operating costs from the Class 2 estimate, verifying major equipment pricing, chemical dosing assumptions, and fuel requirements, and identifying opportunities for cost optimization.
- Summarized primary risks—ranging from UF membrane fouling to process upsets due to high aluminum and cadmium loads—and proposed mitigation measures, including reagent blending and instrumentation upgrades.
- Delivered a concise design review memorandum that included annotated drawings, clarified assumptions, summarized operational risks, and presented a tailored risk register to guide future design progression.
