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Water is critical for all types of mining.
Calix can help simplify and reduce costs associated with acid water management.

Whether it’s the final process water, contaminated storm water or groundwater that is collected in an old mine pit; management of water quality for environmental discharge or recycling in the mineral extraction process is crucial for compliance with environmental regulations and continued operations of the mine site.

Industry challenges

Mines produce a complex wastewater effluent, often difficult to treat due to its high levels of dissolved minerals and heavy loading of contaminants that can make it difficult to discharge or to recycle.

Mines around the world are facing increasingly stressed water supplies, but also increasingly stringent environmental regulations, encouraging them to turn to innovative wastewater treatment solutions that produce water suitable for reuse and limit environmental contamination.

Treating wastewater from mines has a dual potential benefit. Treated water can be recycled to help cut down freshwater use, while providing significant operational and cost benefits.

Neutralise acidic wastewater and remove heavy metals

ACTI-Mag is a highly active neutralising agent that can be used to treat acidic water for recycling or environmental discharge. The high surface area alkali also allows for the precipitation and removal of heavy metals without adding hardness to the water to reduce pipe scale.

Consequently, even very small improvements can translate into millions of dollars in savings over the life of a mining operation.


Our solutions are simple, cost-effective and can help existing wastewater treatment systems improve efficiency while significantly improve the quality of the wastewater discharge.

The process solution developed for each site is developed on a case by case basis as each site has different characteristics. Some of the areas where ACTI-Mag can provide significant benefits:

pH neutralisation of mine water

Safe and cost-effective alternative to caustic soda or lime

Reductions in heavy metals before environmental discharge

Treatment of mine sludge

Water recycling without scale

Customer Stories

Improving the Sustainability of Water Treatment \ Agriculture
Application of ACTI-Mag in mine water

With Calix’s ACTI-mag, a mine in Central NSW neutralises the water and precipitates any heavy metal contamination within the water

Watch our Webinar: Mineral and mine water neutralisation and heavy metal precipitation with ACTI-Mag

In this webinar, Michael will demonstrate that acid mine water doesn’t need to be difficult or expensive problem to solve.

Watch more webinars

Relevant articles

October 23, 2020 \ Improving the Sustainability of Water Treatment

A safe, environmentally-friendly, and cost-effective alternative to the use of Sodium Hydroxide (Caustic Soda, NaOH) for wastewater pH and alkalinity control.

September 29, 2020 \ Improving the Sustainability of Water Treatment
pH & Alkalinity – How are they related?

The relationship between pH & alkalinity is intimately connected with the chemistry of the aqueous bicarbonate equilibrium system. 

September 25, 2020 \ Improving the Sustainability of Water Treatment
Introducing John Van Wingerden

John enjoys giving proactive service to his own customers and leads business development of AMALGAM products for the wastewater industry.

The Calix difference

People, unique technology, partners, and track record


Calix core technology makes high surface area materials (with a honeycomb-like structure), giving you a price and a reactivity advantage.

Our materials are proving to have similar properties to highly active nano-materials, without the health/safety concerns and high cost, but with all the benefits.

Faster reactivity = less costs


Fully integrated supply chain – from mine to customer

Calix is able to offer better service, reliability and performance to its
customers because it controls the entire production process from mining
of raw materials, processing and production.

Chemical dosing systems

Calix leverages a culture of innovation to provide fully customised services such as design expertise, engineering know-how, detail engineering, installation, piping and commissioning services to provide turnkey systems for chemical dosing of Magnesium Hydroxide Liquid (MHL).

Our engineered and cost-effective solutions are tailored to meet your specific needs and budget. Quick to install – our modular dosing units can be delivered on site by truck and are fast to set up and connect.

Find out more about our dosing solutions

We work together in ways others don’t, considering the long-term effect of our actions, never satisfied with the status quo.

Calix has its own direct delivery, service and support capabilities and also has an established a network of local distributors and partners that can provide the best solution for your specific needs and ensure you receive excellent customer service and support, wherever you are located.

Visit Wateraid website

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