An artist's impression of how the Pneumatic Waste Conveyance System would work.
A pneumatic waste disposal system could suck garbage down large chutes from buildings on Elizabeth Quay and carry it to a central collection point.
The City of Perth and the Metropolitan Redevelopment Authority are considering the system as a way to deal with waste and minimise the number of trucks travelling into the area.
Buildings would be provided with rubbish deposit inlets at appropriate places on each floor and litter bins within the public open space areas would also be connected to the system.
At defined points of time, the underground storage areas would be emptied by vacuum and the waste would be transferred along an underground pipeline at a speed of more than 80 kilometres an hour, up to a distance of 1.6 kilometres from the inlet to receiving station.
From there the material would be separated and transferred into a compactor bin where it would be collected by trucks.
Locations for a potential waste receiving station are yet to be identified.
While the system aims to reduce the number of trucks in the area, the truck collection of waste would not be entirely redundant as bulky items would still need to be collected in the conventional way.
Similar systems have been used in Europe, Asia and America with some systems having been in used since the early 1970s.
It is understood that if such a system was adopted the City of Perth would seek a joint funding arrangement with the state government to cover the cost of it.
The system is expected to cost between $15 million and $18 million to create with an annual operating cost of up to $500,000.
City of Perth councillors voted to support ongoing discussion on the proposal at a meeting earlier this month.