Sewer plants in Carbonne Shire, NSW, Australia have a problem with their waste activated sludge (WAS). This material is typically collected in sludge lagoons designed to collect the sludge as it settles out and release the excess water.
The naturally occurring sediment in this storm water management pond had exceeded the pond's designed capacity. The regional conservation authority planned the remediation of this pond to involve the removal of this sediment. The volume of sediment to be removed was very large, thus the cost to transport and dispose of this wet muck would be very costly.
In 2015, a major Canadian natural gas distribution company had to perform construction operations to upgrade its existing distribution system. To mitigate the disturbance of the surface level roads and natural habitats, the proponent utilized horizontal directional drilling (HDD) technology. Twenty large bores (36" and 42") were planned for this project.
Pipeline integrity testing often requires hydro excavation to expose a segment of pipe for inspection. The resulting hydro excavation muds are often a regulated, challenging to dispose of and in some cases, contaminated. In 2015, MetaFLO licensee KBL was contracted by a major Canadian pipeline operator in Alberta to provide the solidification and disposal of 200 m3 of this waste.
Driller for major gas distributor requires cost effective solution for disposing of drilling waste in Quebec near Pierre Elliott Trudeau International Airport. The drill site was in an urban setting with high traffic volume. Drill spoils waste was too liquid and would not be accepted by local disposal site.