Palmer, J & Calil, S 2026, '100 ktd tailings filtration and beyond', in AB Fourie, M Horta, M Oliveira & S Wilson (eds), Paste 2026: Proceedings of the 28th International Conference on Paste, Thickened and Filtered Tailings, Australian Centre for Geomechanics, Perth, pp. 1-13, https://doi.org/10.36487/ACG_repo/2655_12
(https://papers.acg.uwa.edu.au/p/2655_12_Palmer/)
Abstract: The development of large-scale filters for tailings filtration has advanced significantly, with a concept plant capable of handling capacities of 100 ktd being presented. This plant is designed to meet the evolving needs of the mining industry as it adapts to changing regulations and social pressures. While various methods for tailings storage are acceptable, the Global Industry Standard on Tailings Management (United Nations Environment Programme et al. 2020) standards encourage solutions that enhance the safety and sustainability of tailings storage. Tailings filtration emerges as an effective solution in this context.
The concept plant is validated by comparing it to existing references, focusing on the features that need development to achieve a substantial increase in plant capacity. The concept encompasses the entire flow sheet, from thickening to tailings placement. Filtration testing is linked to plant-level scale-up and ancillary equipment selection. Beyond filtration, the plant must be operable and maintainable at a reasonable cost. The technical concept is supported by a financial model that compares capital and operating costs, providing a unified production cost unit for tailings processed.
In addition to the technical and financial aspects, the concept plant also considers environmental and social factors. The implementation of tailings filtration can significantly reduce the environmental footprint of mining operations by minimising the volume of tailings stored in tailings dams. This reduction in tailings volume can lead to decreased risk of dam failures and associated environmental disasters. Furthermore, the adoption of tailings filtration can improve the social license to operate for mining companies, as it demonstrates a commitment to sustainable and responsible mining practices.
Overall, the development of a large-scale tailings filtration plant represents a significant step forward in the mining industry. By addressing technical, financial, environmental, and social considerations, this concept plant offers a comprehensive solution to the challenges of tailings management.

Keywords: filtration, dry stacking tailings