A waste treatment partnership between three councils in North East Scotland was formally agreed which will see them work together on the procurement of an energy from waste plant.Moray and Aberdeenshire councils joined Aberdeen city council in voting to approve a secondary stage Inter-Authority Agreement.The agreement means all three authorities will jointly work on initial project and procurement development of the £150 million East Tullos incinerator, to be built in the south of Aberdeen.The facility will treat up to 150,000 tonnes of waste per year, handling all household residual waste collected from the three council areas. Planning for the plant was approved by Aberdeen city council earlier this monthAll the councils had previously entered the three-way Inter Authority Agreement at the end of 2015, but the secondary stage vote means initial work can now commence.The councils hope that construction of the plant will begin in January 2019, with full operations to be launched in 2021 in time for the Scottish Government’s ban on biodegradable municipal waste to landfill.At present, more than half of household waste in the north east of Scotland is sent to landfill sites.