Calil, S & Palmer, J 2026, 'Addressing barriers to filtered tailings adoption: bridging feasibility and operational reality', 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. 1-15, https://doi.org/10.36487/ACG_repo/2655_01
(https://papers.acg.uwa.edu.au/p/2655_01_Calil/)
Abstract: As the mining industry navigates increasing demands for safer and moresustainable tailings management solutions, the implementation of frameworks such as the Global Industry Standard on Tailings Management (GISTM) (International Council on Mining and Metals et al. 2020) are raising expectations for tailings performance, governance, and transparency. Filtered tailings offer a clear pathway to achieving these requirements. 
Filtered tailings have gained global attention for their ability to reduce environmental and geotechnical risk, minimise water loss, and improve closure outcomes. From the perspective of a filtration technology supplier, filtered tailings represent a proven and increasingly viable solution – but one that still faces significant barriers to widespread adoption.
Drawing on Metso’s global experience with high-throughput filtration systems, this paper examines the most common barriers to implementation, including high capital and operating costs, scalability challenges in large operations (including bulk material handling), site-specific geotechnical and climatic constraints, undervaluation of water, regulatory uncertainty, risk aversion, and supply chain limitations. 
These barriers are explored from both the equipment supplier’s and the mining operator’s perspectives.
Filtered tailings solutions must be aligned with evolving standards and expectations. Delivering reliable, safe, and cost-effective performance over the full life cycle of a system. In alignment with the themes of surface disposal, emerging technology, and design with closure in mind, the paper presents practical, technology-driven strategies to overcome these constraints.
Advances in filter press design, automation and modular concepts are helping reduce technical, operational and economic risk. By aligning technological innovation with evolving environmental, social, and governance standards, filtered tailings can become a future-ready, cost-effective, and socially acceptable solution, bridging the gap between feasibility and operational reality.

Keywords: tailings, filtered stacks, environmental, social, and governance, GISTM, design with closure in mind, emerging technology, surface disposal