April 19, 2020
The commissioning of M4-M5 Ground Water Treatment Plants has finished – the plants began treating ground water and stormwater since December, 2019.
Following the successful construction and operation of a temporary plant for the WestConnex M4 East, CRS was awarded the contract to construct three temporary WTP in May, 2019 for the M4-M5 Link Tunnels. The water treatment plant has the capacity to treat 2.5 million litres of water a day from sources of stormwater, groundwater ingress and tunnel wash down water.
Treatment processes featured in the plant include: Coagulant Dosing, pH correction, Clarification, Media Filtration and Sludge Dewatering via a Filter Press. After treatment the water is released into local waterways.
A containerised 500kL/day RO unit is currently under construction. The plant features cartridge filtration and 3-stage reverse osmosis. It has been designed as an emergency unit that can be mobilised to various sites across Western Australia depdending on the site requirements.
Following the completion of the M4-M5 Ground Water Treamtnet Plants, CRS was engaged again to provide three GAC/IX treatment modules as ancillaries to the existing plants.