Tag Archives: toxic chemicals

Taming toxic pollution

CRC CARE is addressing the significant growing issue of toxic environmental pollution with innovative and effective real-world solutions.

Recently, major concerns have emerged across Australia about sites contaminated by chemical pollutants known as per- and poly-fluoroalkyl substances (PFAS).

Potentially harmful to human health and the environment, some PFAS are active ingredients in firefighting foam. These include PFOS, which is listed in the Stockholm Convention on Persistent Organic Pollutants. PFAS contamination has become a big problem near some firefighting training areas, where it has contaminated soil and water.

“There are more than 100,000 potentially toxic chemicals and five million potentially contaminated sites globally, so there is a real need for innovation,” says Professor Ravi Naidu, CEO of the CRC for Contamination Assessment and Remediation of the Environment (CRC CARE).

One of CRC CARE’s innovations is a product called matCARE, a modified natural clay that can irreversibly lock up PFAS so polluted soil and water can be decontaminated. Naidu says matCARE is 50% more efficient – and thus cheaper – than similar technologies, and does not leach PFAS over time.

Four firefighting training sites have successfully cleaned up the pollution with matCARE and CRC CARE is now looking to partner with companies to broaden its use beyond the safe storage of the chemical. “The technology that’s available at the moment can only immobilise PFAS and unfortunately there is still a contaminated product at the end,” explains Naidu. “We have developed a technology that breaks down PFAS into carbon dioxide and fluoride. Companies are looking for technology that decomposes PFAS into safe products and we have been able to do that.”

Cherese Sonkkila

crccare.com