An Australian manufacturer of plasterboard recently installed a Sediment Pit at its Melbourne plant to prevent pollutants entering Melbourne's storm water system.
Storm water collected from Lafarge Plasterboard's Melbourne plant contains sediment from factory operations and chemical seepage. All storm water is now required to pass through a piped system into the Sediment Pit.
The concrete Sediment Pit, designed by AWMA was manufacturing by MILCAST to enclose an AWMA PosiSeal Gate and two 'Baffles', with AWMA point-to-point telemetry control.
Inside the Pit one Baffle was placed at the base to capture heavy sediment, a second Baffle was placed at water height to prevent floating pollutants passing through the Positive Seal Gate and entering Melbourne's storm water system.
The PosiSeal Gate provides complete sealing for emergency shutdown. Point-to-point telemetry control incorporated in a control box at the site of the Sediment Pit, as well a remote control point on the factory floor. A pneumatic actuation system on the PosiSeal Gate closes to 100% sealing within 5 seconds of activation.
Ms Georgie Cooper, Process Improvement Engineer for Lafarge Plasterboard's Melbourne plant initiated and managed the project. She stated "Gathering all water on site and ensuring it is safe before returning it to the Melbourne's water supply is not just an example of corporate responsibility, it's common sense. All companies should be responsible for their water and waste management." Ms Cooper added "Our Sediment Pit was a concept we have always wanted to implement. It was made much easier with suppliers now specialised in efficient water management".