Sita UK has been granted planning permission to continue landfilling at its Hill of Tramaud site for a further 18 months.
Originally due to close at the end of this year, Aberdeen City Council agreed to the extension, which will allow the site to accept waste until June 2011.
Sita expected a 120,000 tonne shortfall in the amount of waste landfilled by the end of 2009. If the site does not reach its full landfill capacity it could have impacted on the long-term maintenance and drainage on the site.
The shortfall is a result of delays at the beginning of the five-year landfill life-span caused by a lengthy planning application in 2004. Scheduled to start landfilling in December 2004, this did not actually happen until May 2006.
Sita UK planning manager Annemarie Wilshaw said: We very much welcome the decision today by the planning committee and believe it is the best way forward for the landfill site and the local area.
We have given an assurance that the 18-monh closure delay will not lead to an increase in the amount of waste landfilled, over and above the already-agreed levels.
Aberdeens residual waste still goes to landfill for disposal, although Sita is working with the City Council to help maximise recycling.
Planning permission has also been granted to for a new gas control and renewable power generation facility at the site, which already uses a gas abstraction system to control odour. The new facility, which could be ready by early 2010, will use landfill gas to generate enough electricity to power 1,660 homes.