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Frequently Asked Questions
Everything You Need to Know About PMAP
Will PMAP help us meet discharge limits in Canada?
Yes—PMAP is designed around your permit. We model against your site standard (e.g., MDMER) and local permit conditions, then validate with pilots before full deployment. Typical targets include pH within 6.0–9.5 and metals aligned to CCME/site limits. We provide test plans and compliance reporting.
What is PMAP process?
In-situ treatment with a magnesium-based reagent and an autonomous dosing vessel.
• We build a digital twin of your pond, then set dose targets.
• Our USDV navigates and doses precisely; onboard sensors adjust in real time.
• No fixed plant; treatment happens directly in the pond/tailings cell.
How fast can you stabilize very acidic water (e.g., ARD)?
Usually within the treatment window of a single deployment. In pilots on low-pH waters, we’ve reached target pH and precipitated key metals. We share kinetics from comparable sites and confirm with a bench/pilot first.
How does PMAP compare to lime plants on cost and complexity?
Lower complexity, often lower total cost.
• CAPEX: in-situ dosing removes the need for a fixed plant.
• OPEX: dosing efficiency + automation reduce power and labor; sludge volumes are typically smaller than lime systems, which often produce gypsum-heavy sludge.
What contaminants can you remove?
Heavy metals common in mine water, plus acidity. In several pilots, metals reached near or below detection; final performance depends on your chemistry (hardness, sulphate, TSS). We’ll share third-party data under NDA and project performance from jar/pilot tests.
Does PMAP handle variable chemistry and big ponds?
Yes—built for fluctuation and scale.
• Real-time sensor feedback adjusts dose on the fly.
• Modular deployment covers <1 ha to 100+ ha with varying depths.
• We re-tune dosing as seasons and inflows change.
What about sludge—volume, handling, and metal recovery?
Lower volumes and simpler handling vs. lime are common. Selective precipitation can yield metal-rich solids (e.g., Cu/Ni/Co streams) that are candidates for recovery where economics support it. We size dewatering and, if viable, outline recovery pathways.
Is the reagent safe? What’s the ESG impact?
Non-hazardous reagent, fewer trucked chemicals, and no large plant footprint.
• In-situ treatment cuts spill/storage risk and embodied carbon from civil works.
• Less sludge to haul benefits cost and safety.
• We map impacts into your ESG metrics and disclosure.
