In the mining and process industries, efficient solid-liquid separation is a key factor for productivity, water recovery, and environmental performance. For more than fifty years, Diemme Filtration, headquartered in Lugo, Italy, has been developing and supplying filtration and thickening technologies that combine engineering precision with operational reliability. Today, the company’s expertise spans multiple industries — from mining and minerals to chemicals, energy, and water treatment, with mining representing its most significant and rapidly evolving field of application.
From laboratory testing to engineered solutions
Each Diemme system originates from a detailed understanding of the customer’s process. The company’s in-house laboratory performs comprehensive analyses on slurry or tailings samples, including filtration tests, rheology evaluation, and flocculant selection — to define the most suitable technological approach.
This close cooperation continues through mechanical and structural design, automation and control integration, manufacturing, and field installation.
The result is a filtration or thickening plant built around the specific needs of each site, considering process characteristics, operating environment, and maintenance constraints. This collaborative approach has become a defining element of Diemme’s identity and an essential factor in the reliability and efficiency of its installations.
A complete product portfolio
Diemme offers one of the most comprehensive ranges of solid-liquid separation equipment available on the market including,
- Filter presses, with plate sizes from 500 × 500 mm up to 5,000 × 5,000 mm.
The range includes both GHT-F and Linear ME series. The GHT-F is well-suited for tailings dewatering, while the Linear ME is widely used in the filtration of mineral concentrates, where fast cycle times and consistent cake quality are required. - Thickeners, designed for high-rate operation and efficient clarification.
These systems feature optimized feedwells, advanced instrumentation, and tank diameters that can exceed 40 m, offering robust performance even in demanding slurry conditions. - Pumps and auxiliaries, engineered to integrate seamlessly with filtration and thickening lines, ensuring reliable slurry handling and reduced downtime.
Diemme’s engineering flexibility allows each machine to be configured according to the process requirements — from materials of construction and automation level to specific process control functions.
Large-scale capability
Among Diemme’s most significant achievements is the GHT5000F Domino, currently the largest filter press in operation worldwide. With plates measuring 5 × 5 m and a filtration capacity of up to 15,000 tons of dry solids per day, it represents the culmination of decades of mechanical design experience. Such machines are particularly relevant in large-volume tailings dewatering, where space optimization, water recovery, and safety are key concerns.
Mining and tailings: Focus in Africa
Mining remains at the core of Diemme’s activity, and Africa represents a region of strong potential growth. The continent’s mineral wealth and expanding processing capacity demand reliable and sustainable dewatering technologies, both for concentrate filtration and tailings management.
Dry stacking and high-efficiency water recovery have increasingly become important in many African mining operations, where water availability and environmental regulations drive the adoption of advanced filtration systems. Diemme’s experience in large-scale projects, combined with its capacity to adapt technology to different mineralogies and site conditions, makes it a suitable partner for operators pursuing modern, sustainable practices.
Service and customer proximity
Beyond technology, Diemme places significant emphasis on service and customer support.
Its integrated service model covers every phase of the equipment’s life cycle, from commissioning and training to preventive maintenance, spare parts management, and process optimization.
A key element of this support strategy is AIDA (Advanced Intelligent Data Analysis), a digital monitoring and analytics platform that allows continuous observation of operating parameters. AIDA provides predictive insights, helps identify maintenance needs, and contributes to improving plant efficiency and uptime.
In parallel, Diemme is developing its Customer Proximity program, an initiative aimed at strengthening presence in strategic regions, including Africa. The goal is to be closer to customers, reduce response times, and ensure that technical expertise and spare parts are readily available where operations take place.
Engineering knowledge across industries
While mining is the primary focus, Diemme’s technology is also applied in other process industries such as oil & gas, energy production, and water treatment, all sectors that share similar challenges in solid-liquid separation.
This cross-sector experience reinforces the company’s ability to innovate and to apply solutions developed for one industry to another, ensuring continuous technical advancement and reliability.
Sustainability and efficiency
Diemme’s filtration and thickening systems contribute directly to water conservation, reduction of tailings volumes, and improved environmental performance. By optimizing filtration cycles and cake dryness, they help minimize the footprint of tailings facilities and reduce the overall water demand of mining operations, key aspects in regions where sustainability is increasingly central to project success.
A trusted partner for the African market
With decades of experience, a wide product portfolio, and a service model designed for long-term reliability, Diemme Filtration is positioned to support African mining and industrial operators in achieving efficient, sustainable solid-liquid separation.
From laboratory testing to plant operation, the company’s approach is defined by collaboration, technical competence, and proximity, values that align closely with the needs of Africa’s evolving mining landscape.
For more information: www.diemmefiltration.com
