Gedabek filter presses and thickener: dewatering and tailings insights for engineers
Reviewed by Tom Sullivan

First reported on International Mining – News
30 Second Briefing
Anglo Asian Mining has started production from two new larger filter presses and an associated thickener at its Gedabek flotation plant in Azerbaijan, following installation of a second press announced on 16 October 2025. The upgraded dewatering circuit is designed to handle higher concentrate throughput and produce drier filter cakes, improving water recovery back to the plant. For plant and tailings engineers, the changes point to tighter control of slurry densities and potentially lower tailings storage volumes per tonne processed.
Technical Brief
- Anglo Asian is targeting higher gold-copper-silver concentrate output from the same flotation circuit footprint.
- Retrofit works occurred within an operating plant, implying constrained tie-ins and limited shutdown windows.
- Commissioning of the thickener and presses was synchronised to avoid unstable interim slurry routing.
- For similar brownfield mining plants, the case illustrates staged dewatering upgrades aligned with incremental throughput growth.
Our Take
The timing of these upgrades at the Gedabek flotation plant comes shortly after ACG Metals walked away from a potential takeover of Anglo Asian Mining’s Azerbaijani gold-copper-silver assets, signalling that Anglo Asian is continuing to invest in asset performance despite recent corporate uncertainty.
Within our mining coverage, Anglo Asian’s gold-copper operations in Azerbaijan sit in a relatively small group of Caucasus-region producers, so incremental plant improvements at Gedabek can materially influence the company’s overall metal output profile rather than just marginally optimising a large diversified portfolio.
Installing additional and larger filter presses at a polymetallic plant like Gedabek typically aims to tighten water balance and improve concentrate handling; for a gold-copper-silver operation this can reduce tailings moisture and trucking costs, and may help the site accommodate any future throughput increases without major new tailings infrastructure.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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