References
Saudi Arabia
Phosphate tailings filtration for Maaden
The Democratic Republic of the Congo
Tailings Management Systems
End-to-end solutions for tailings management, comprising slurry handling, transport, cake disposal and stacking with Dry Stack Tailings systems
Key Facts
- Thickeners
- High Rate / Paste / High Density Thickeners; Horizontal Vacuum Belt Filters and MAXDri Filter Presses
- Applications for diverse tailings
- Iron ore / Copper / Zinc / Gold / Red mud disposal
• High Rate Thickener: 1 - 100 m diameter
• Paste Thickener: Up to 12 m sidewall depth (SWD)
• High Density Thickener: Up to 6 m sidewall depth (SWD)
• Horizontal Vacuum Belt Filter: Up 215 m² filtration area
• MAXDri Filter Press: 625 m² - 14 m³ volume; 1,125 m² – 30 m³ volume
Would you like further information?
Tailings management systems at TAKRAF Group
Drawing on the combined expertise of TAKRAF and DELKOR, we design, engineer and supply technologically advanced, integrated tailings management solutions. System configurations are tailored using a range of technology options and combinations, selected to suit specific material characteristics and project requirements.
Dewatering equipment
DELKOR’s dewatering equipment for tailings thickening and filtration enables sustainable tailings management by significantly reducing the volume of material requiring disposal. The equipment comprises:
Dry Stack Tailings (DST) system
TAKRAF’s DST system integrates DELKOR’s filtration expertise with TAKRAF’s conveying and stacking technologies to deliver a complete Dry Stack Tailings solution.
Thickening and filtration solutions
DELKOR has supplied numerous tailings management systems worldwide based on integrated thickening with either vacuum or pressure filtration flowsheets. These solutions enable cost-effective handling of large tailings volumes, efficient volume reduction, and the removal of hazardous substances through effective cake washing, supporting both dry stacking and backfill applications.
Thickening-vacuum filtration applications
- Gold tailings – stacking after cyanide removal via cake washing
- Copper tailings - paste backfilling
- Rock phosphate tailings - dry stacking, eliminating the need for tailings ponds
- Copper slag tailings– filtration and handling
- Iron ore tailings
Thickening-pressure filtration applications
- Gold tailings
- Iron ore tailings
- Lithium tailings
- Molybdenum tailings
Managing and disposing of processing waste safely and effectively at Mineração Usiminas in Brazil
TAKRAF’s DST system for Mineração Usiminas, one of the Usiminas companies, and one of the largest steel producers in the Americas, highlights our advanced expertise and unique positioning to offer a complete end-to-end solution for safe and environmentally friendly mine waste management.
The system is designed as a fully integrated dewatering process via thickening and filtration and includes the following main equipment:
- 1 x flocculant plant
- 1 x coagulant plant
- 1 x DELKOR high-rate thickener: 35 m diameter
- 1 x 300 m2 slurry tank with agitator
- 4 x double stage centrifugal slurry pumps
- 4 x DELKOR overhead beam filter presses, powered by Diefenbach: 2 m x 2 m plates
- 4 x compressors with tanks (process and instrument air)
- 4 x TAKRAF belt feeders with transfer chutes
Mineração Usiminas implemented the DST system to enable the filtering and stacking of tailings as the deposit area of the existing tailings dam reached full capacity. The process dewaters the tailings slurry in a single stream via a two-stage process using a DELKOR high-rate thickener followed by the filtration of thickener underflow using DELKOR overhead beam filter presses, powered by Diefenbach. The next process step allows further water recovery through the filter press. Particular attention has been given to the pre-treatment of the slurry using reagents to improve maximum recovery. The result is a dry filter cake that can be effectively handled and deposited.
Benefits
Proven global expertise
- Extensive experience across a wide range of mineral commodities worldwide
- Cross-functional global teams delivering results-driven collaboration
- Local service support backed by global technical expertise
Integrated design and engineering
- Strong design and engineering capabilities enabling seamless integration of equipment across the process
End-to-end tailings management solutions
- A single-source solution for tailings management, delivering cost-effective, custom-engineered systems encompassing:
- Sedimentation
- Slurry pumping
- Filtration
- Cake handling and disposal
