Solar Pump Systems for Gold Mine Elution and Electrowinning Circuit Water
Introduction
The gold room—the adsorption-desorption-recovery (ADR) or carbon-in-leach elution and electrowinning circuit—is where dissolved gold is finally pulled from the carbon and plated onto steel. That circuit uses water: for elution, acid washing, electrowinning cell make-up and the various rinses that keep the gold room clean and the bars pure. At a remote African mine this water is usually pumped by diesel. A solar pump delivers the gold-room water off-grid, quietly and consistently, protecting both the product and the people. This article covers solar pump systems for gold-mine elution and electrowinning circuit water, from specialists at KINBO.
Table of Contents
The Gold-Room Water Duty
- Elution—hot caustic/cyanide solution strips gold from loaded carbon; the eluate then goes to electrowinning.
- Acid wash—before elution, carbon is acid-washed to remove base metals; this uses acidified water.
- Electrowinning cells—the eluate is passed through cells where gold plates onto cathodes; cells need careful make-up and rinse water.
- Rinses and housekeeping—the gold room is kept meticulously clean; rinse water is a small but constant draw.
This sits downstream of leaching (our heap-leach guide) and destruction (our cyanide-destruction guide)—it is the final, high-value recovery step.
Selecting the Gold-Room Pump
- Clean-water centrifugal or booster—delivers make-up and rinse water to the gold room at controlled pressure.
- Materials for chemistry—acid and caustic streams need compatible wet-ends (HDPE, PP, stainless or lined); our reagent-dosing guide covers material thinking.
- Small precise duties—cell make-up is modest; our micro-dosing guide applies to the precise draws.
- Control—a VFD-style solar controller holds pressure so the gold room sees a stable supply.
Solar Drive and Buffer
- Small array—gold-room demand is low; size with ~20% headroom and a battery so the room is never short of water.
- Buffer tank—an elevated tank decouples solar pumping from the elution campaign schedule.
- Redundancy—as with our hybrid systems, keep a backup so a gold-room water stop never interrupts a pour of gold-bearing eluate.
Solar vs Diesel Gold-Room Supply
| Factor | Diesel Gold-Room Supply | Solar Gold-Room Supply |
|---|---|---|
| Energy cost | Per run-hour | Zero after install |
| Supply stability | Fuel-dependent | Buffer holds steady |
| Footprint | Gen + fuel at site | Small panel + battery |
| Best fit | Grid-connected rooms | Off-grid / remote rooms |
Because the gold room handles the product itself, a stable, clean water supply is a recovery and purity safeguard, not just a cost cut.
Frequently Asked Questions
Can solar handle the acid and caustic streams?
Yes—specify compatible wet-ends and seals for each stream; the pump types are standard, only materials change. Size make-up and rinse together so the room stays in balance.
What if the elution campaign runs continuously?
Add a battery or hybrid so the supply never stops; the array recharges by day and a small generator only tops up if the battery runs low, protecting your pour schedule.
Is the water clean enough for the gold room?
The pump delivers source water to your existing pre-treatment; specify the treatment you already use. Solar simply delivers it reliably off-grid.
How is this different from leaching?
Leaching dissolves gold from ore; the gold room recovers it from carbon. Solar serves both—irrigating the pad and supplying the recovery circuit downstream.
Related Articles
- Solar Pump Systems for Gold Mine Heap Leach Irrigation
- Solar Pump Systems for Gold Mine Cyanide Destruction
- Solar Pump Selection for Gold Mine Chemical and Reagent Dosing
- Explore KINBO Solar Pump Products
Get a Solar Gold-Room Water Pump
Share KINBO your gold-room make-up and rinse flows, water source and any acid/caustic streams, and we will specify a solar pump with compatible materials, the right buffer and control to keep your gold-mine recovery circuit supplied off-grid. Contact our team for a tailored quote.
Published by KINBO · September 23, 2026 · Category: Application Cases