Gold Processing Plant Diagnostic Tool & Recovery Audit
Simulate cyanide leach kinetics, quantify tailings revenue leakage, size agitated CIL tank trains, and submit structured operating parameters for a confidential engineering review by Green Ngoria metallurgical specialists.
Diagnostic Plant Calculators
Simulate leach kinetics, quantify tailings revenue leakage, size agitated tank trains, and evaluate reagent & carbon elution cycles.
Ore Grade & Production Parameters
Tailings Revenue Opportunity Gap
Submit Operating Data for Engineering Review
Provide your ore grades, throughput numbers, and identified processing challenges. Our senior process metallurgists will formulate a preliminary mass balance and remediation strategy.
Plant Problem Spotter & Equipment Diagnostics
Correlate common metallurgical failure modes with equipment root causes across grinding, leaching, elution, and thickening circuits.
Grinding CircuitHydrocyclone Classification & Grind Liberation
Coarse grind P80 (>100 μm), gold locking inside unliberated quartz/sulfides, or slurry roping in apex.
Hydrocyclone cluster vortex/apex re-sizing, closed-circuit slurry pressure tuning, and Bond Work Index ball charge optimization.
Leaching CircuitCIP / CIL Leach Kinetics & Tank Agitation
Slurry sanding at tank bottoms, low dissolved oxygen (<4 ppm), carbon attrition from violent shear, or high tails.
High-efficiency dual hydrofoil axial impellers, draft-tube aeration, and polyurethane interstage wedge-wire screens.
Gold RoomHigh-Pressure Zadra Desorption & Electrowinning
Slow 48-hr atmospheric stripping, high barren carbon (>200 g/t Au), or severe cell passivating sludge.
140°C, 450 kPa Pressure Zadra elution skid with automated heat exchangers, rectifiers, and stainless electrowinning cells.
Carbon ManagementRotary Carbon Reactivation & Acid Washing
Carbon fouling from calcium carbonate and organic foulants, dropping gold adsorption kinetics below 40%.
Continuous rotary diesel/electric reactivation kiln operating at 700°C with steam activation and preceding dilute HCl acid wash column.
Solid-Liquid SeparationHigh-Rate Thickening & Cyanide Water Recovery
Cloudy thickener overflow, flocculant overconsumption, high cyanide loss to tailings dam, or poor settling rate.
12m High-Rate thickener with automated de-aerating feedwell, ultrasonic bed level sensing, and dynamic flocculant dilution manifold.
Hydraulic TransportHigh-Head Slurry Pumping & Hydraulic Balance
Frequent impeller and throatbush blowouts, surging sump levels, pipeline cavitation, or excessive gland water dilution.
Heavy-duty chrome alloy (27% Cr) and natural rubber-lined centrifugal slurry pumps with variable frequency drives (VFD).
The Green Ngoria 5-Tier Metallurgical Audit Protocol
Every on-site plant optimization follows an ISO-aligned, diagnostic testwork framework that eliminates guesswork and delivers verified recovery improvements.
Diagnostic Leach & Mineralogy
Bottle-roll cyanide leach kinetic curves (6h, 12h, 24h, 36h), diagnostic leach to determine refractory gold distribution, and Bond Work Index grindability testwork.
Circuit Mass Balancing
Full-plant slurry density survey, volumetric flow reconciliation, carbon loading profile across each tank stage, and cyanide titration profiles.
Bottleneck Root-Cause Pinpoint
Pinpoint exact revenue leakage: grinding under-liberation, oxygen starvation, carbon fouling/passivation, or short-circuiting slurry pathways.
Remediation & Flowsheet Engineering
Formulate bankable engineering recommendations: residence time extension, oxygen sparging skids, Zadra elution retrofits, or automated reagent dosing.
On-Site Commissioning & Verification
Deploy process engineers directly to site to execute mechanical retrofits, calibrate instrumentation, and verify gold recovery improvement at the bullion pour.
Ready to Eliminate Tailings Revenue Leakage?
Schedule an on-site metallurgical plant audit with our process engineers in Migori, Kakamega, Siaya, or Lake Victoria goldfields.