Efforts are under way to identify a contractor to build a waste treatment facility for Edinburgh and Midlothian councils.
The plant will treat around 110,000 tonnes a year of residual waste.
A notice has been published in the Official Journal of the European Union announcing that Zero Waste: Edinburgh and Midlothian is seeking to procure residual waste treatment facilities. A site near Millerhill has been identified for the plant.
Strategic service spokesman for Midlothian Council, Russell Imrie, said: “We are very pleased to mark the second key phase of a process that will change the way we deal with waste forever.
“We are becoming more environmentally conscious, more resource efficient, more sustainable and less wasteful.”