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With global gold prices staying high, the value hidden in tailings is becoming impossible to ignore. At the same time, mining worldwide is shifting toward greener operations, making “green mining” the only viable path forward. In the face of these dual trends, gold tailings recovery is no longer just a technical upgrade—it is a key driver of competitiveness and long-term sustainability.
The 500 t/d gold tailings CIL project undertaken by Xinhai in Ghana adopted advanced processing technology.It fully incorporated green-mine design throughout the entire process.The result is a plant that turns tailings into profit while meeting international environmental standards.
Tailings are not the end of processing—they are the starting point for resource reuse.
In this Ghana project, the gold grade of tailings ranges from 2–5 g/t. Based on current gold prices, every thousand tons of tailings contains significant economic value.
But efficient tailings recovery faces two major challenges:
Gold often exists as ultrafine particles or encapsulated forms that require advanced technology to extract.
The recovery process must be environmentally sound and avoid secondary pollution.
Xinhai’s Solution:
For these fine-grained, disseminated gold tailings, Xinhai designed a full-mud cyanidation–CIL process. Two-stage closed-circuit grinding reduces the material to over 85% passing 200 mesh, ensuring full gold liberation before leaching, adsorption, and extraction—achieving high recovery rates.
In today’s mining landscape, green mining standards have become a core competitive advantage and a prerequisite for long-term operations. A true green mine requires environmental management across design, construction, and production—turning environmental requirements into engineering standards.
In this Ghana project, the green-mine concept was implemented through:
Full-process pollution control: Reducing waste generation at the source and applying complete end-treatment systems.
Water recycling: A highly efficient water-return system that enables closed-loop circulation.
Eco-friendly tailings design: A lined, monitored tailings facility ensuring long-term environmental safety.
Energy-saving operation: Optimised equipment and layout to reduce power consumption.
This systematic approach not only meets increasingly stringent regulations but also reduces operating costs by enabling more efficient resource use.
The key to the project’s success lies in aligning technical recovery with environmental performance through an upgraded CIL process.
Optimised grinding fineness for full gold liberation
Multi-stage leaching and adsorption for higher recovery
Desorption–electrowinning system ensuring product purity
These optimisations transform previously low-value tailings into economically viable resources.
Enclosed tanks to minimise volatilisation
Automated reagent dosing for precise chemical control
Integrated tailings dewatering and water-return systems
Notably, space for future expansion was reserved during design, avoiding repeated earthworks and reducing future environmental disturbance—a hallmark of modern green-mine planning.
This Ghana tailings project is a successful demonstration of integrating gold tailings recovery with green-mine principles in Africa. Despite challenges in local construction conditions and installation efficiency, the Xinhai team maintained strict environmental standards throughout the project lifecycle.
Design stage: Environmental requirements were embedded into drawings and technical guidelines.
Installation stage: On-site teams ensured environmental facilities were constructed to standard.
Commissioning stage: Environmental systems were optimised alongside production systems.
The final result is more than just a gold recovery plant—it is a high-performance, environmentally responsible green-mine facility.
Xinhai’s solution for the Ghana project delivers value on two fronts:
Immediate financial gains: The optimised CIL process maximises tailings gold recovery for fast payback.
Long-term compliance: Environmental design far above local requirements helps clients meet future regulations with ease.
Brand enhancement: A responsible, green operation strengthens ESG performance and builds investor confidence.
Conclusion
Today, resource recovery and environmental performance define the future of mining. The Ghana project shows that the two goals can reinforce each other, creating value far beyond traditional operations.
Whether you need to process historical tailings or design a new project that meets higher environmental standards, Xinhai is ready to deliver a customised solution built on proven success.
Contact Xinhai today—turn idle tailings into profit and build a truly green mine that transforms environmental compliance into long-term competitive advantage.
+86 13811510145