The South Byron Treatment Plant Project involved the demolition of all above and below ground infrastructure, along with asbestos removal and the remediation of burial pits and sludge drying beds.
Asbestos removal works included the removal of bonded asbestos sheeting from buildings and mastic sealant from treatment plant infrastructure. In addition, a significant amount of asbestos pipework was removed from the bases of the two trickle filter tanks. All asbestos removal was validated by a certified hygienist.
Over 1,000m3 of river rock contained in the treatment plant’s trickling filter system was selectively removed, washed and stockpiled for reuse in future landscape and rehabilitation works.
Prior to the start of demolition works, residual sludge contained within the digester treatment tanks were treated and disposed off site to landfill. Over the 10 years the site had been closed, stormwater had occupied a number of tanks and pits on site. Following sampling and analysis, Liberty obtained approval for discharge into the adjacent lagoon and saved the client significant costs for off site disposal to a treatment facility.