AURUM membrane squeeze technology: optimising tailings filtration in filter presses

Authors: Fischer, B; Bragin, G; Podratzky, K Download Paper Open access courtesy of:

DOI https://doi.org/10.36487/ACG_repo/2655_42

Cite As:
Fischer, B, Bragin, G & Podratzky, K 2026, 'AURUM membrane squeeze technology: optimising tailings filtration in filter presses', 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. 1-10, https://doi.org/10.36487/ACG_repo/2655_42



Abstract:
The increasing demand for efficient and sustainable tailings management has intensified the need for robust dry-stacking filtration technologies capable of delivering low cake moisture content at high throughput and reduced operational cost. The LENSER AURUM membrane for filter plates represents a significant advancement in filter press technology, combining the advantages of traditional squeezing materials such as polypropylene (PP), thermoplastic elastomer (TPE), and ethylene propylene diene monomer (EPDM) rubber into a single, high-performance solution. The test work shows that AURUM delivers exceptional abrasion resistance and superior flexing durability, addressing the primary failure modes of conventional membranes. With up to 3 times faster inflation kinetics compared to standard materials, AURUM enables accelerated dewatering cycles, directly enhancing throughput. This paper presents comparative test performance data and outlines the integration of AURUM into existing filter press systems. Within the scope of mining applications, the integration is exemplified using an iron ore tailings filtration plant. The modular design supports seamless retrofitting, while the extended lifetime and reduced maintenance requirements contribute to lower opex and improved sustainability metrics.

Keywords: filtration, diaphragm, membrane filter press, filter plate

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