Integrated mine waste systems beyond filtered tailings: design notes for engineers
Reviewed by Tom Sullivan

First reported on Australian Mining
30 Second Briefing
Tailings management is shifting from a single-technology focus on filtered tailings to an integrated mine waste system that balances water constraints, operational performance and long-term closure, argues Ljiljana Josic, vice president of geotechnical, tailings and mine waste at Onterris. Josic frames filtered tailings as one tool within a broader design envelope that must consider water recovery, storage volumes and geotechnical stability across the entire life-of-mine. The approach pushes operators to co-optimise tailings deposition, waste rock placement and water circuits rather than retrofitting closure onto production-driven layouts.
Technical Brief
- Filtered tailings are framed as a dewatering technology, not a standalone storage or closure solution.
- Josic stresses that tailings, waste rock and water circuits must be engineered as one geotechnical system.
- Water balance constraints are treated as primary design inputs, not boundary conditions checked after layout.
- Closure landforms are back-analysed to define required storage geometries and deposition strategies during operations.
- The framework forces early trade-offs between haulage distance, stack height, and long-term stability requirements.
- Josic argues that filtered tailings selection should follow system-level trade-off studies, not corporate technology mandates.
Our Take
Australian Mining’s recent coverage of water scarcity and closed-loop circuits (e.g. the Xylem-focused piece from 27 October 2026) suggests that integrating tailings with process-water management is becoming a practical design question rather than a purely environmental aspiration for Australian sites.
Given nearly 30 years of industry experience behind this Op-Ed, practitioners in Australia may read it alongside safety and risk-management items in our database as a signal that tailings are increasingly being framed as a core operational system, not a peripheral compliance issue.
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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