RWWA was awarded the contract to build an arsenic and cyanide removal system for the St Barbara mining limited site in the Solomon Islands.
The site was a tailing storage facility used in a gold production process. The facility was contaminated with levels of cyanide arsenic and other heavy metals.
RWWA build a treatment system in Australia before shipping it to the Solomon Islands for installation. The system included a lime dosing system for pH control, a ferric chlorite injection system to bind particles and a Chlorine dioxide generator for oxidisation and cyanide destruction.
A part of the contract RWWA facilitated the rectification of the storage facility to include rebuilding access and roads, rebuild a chemical storage facility and installation and commissioning of a water treatment system.
RWWA successfully completed the project and the system is currently in full operation.