infinite water

Treatment for Removal of Heavy Metals and Metalloids

The Challenge

Water contaminated with metals must be treated to address health risks to people and potential environmental impacts. Metals such as arsenic, cadmium, lead and mercury are naturally occurring or added by human industrial activity. It is well known that ‘heavy metals’ in drinking water pose a threat to human health. People are exposed to heavy metals primarily through water consumption (or food ingestion) and risks range from cancers, skin lesions and kidney damage to neurotoxicity.

Our Solution

Our experienced team designs and delivers innovative water treatment solutions which are particularly cost-effective for:

  • Treatment and removal of heavy metals and metalloids, and
  • Safe treatment and disposal of sludge containing highly toxic elements.

Depending on the optimal solution for the target end-use of the treated water, we incorporate our proprietary HydroxonTM MX- Series, drawing on deep expertise across the core processes of co-precipitation, catalytic oxidation and advanced catalytic oxidation (ACO). The Hydroxon technology relies on specific filtration- ACO processes, in which highly reactive species are produced in-situ via a catalytic process to treat contaminated water.

Our solutions get up to 99.9% removal of heavy metals and metalloids.

When required, we design integrated solutions combining Hydroxon with other technologies to deliver optimal outcomes, for example treatment of high salts (RO, IEX) or evaporation/ crystallisation (for ZLD).


Our solutions have proven highly effective at removing heavy metals and metalloids, improving human health, environmental footprint and achievement of sustainability goals.

  • Australian copper miner: treated and optimised on-site mining equipment wash water to stringent ANZEC2000 guidelines before discharge to the environment, removing metals (Al, Cu, Fe, Mn, Mo, Ni, Pb, Zn) and Hydrocarbons.
  • Queensland mines: Lab optimisation and testing for an AMD (acid mine drainage) challenge demonstrated high metals removal (focus on Al, Zn, Mn, Cu), as well as reductions in COD and Total Nitrogen, at significantly reduced operating cost.
  • Australian Alumina Refinery: Testing in the Infinite Water lab for this client treated process wastewater, removing Al, As and V to levels under discharge compliance guidelines.
  • China electronics manufacturer: successfully removed metals from the metal-plating process wastewater and increased production capacity through more efficient re-use.