Work can now start at the mechanical biological treatment (MBT) plant at Westbury for operators Hills Waste Solutions and construction is expected to last 24 months.
The MBT process involves pre-sorting municipal waste, bio-drying in a composting area followed by shredding and further sorting to produce recyclates and a solid recovered fuel (SRF).
Interserve’s contract includes construction of the reception building, bio-drying hall, processing building and connected offices and administration facilities.
Interserve is undertaking all the building and civil engineering works, with Italian company Entsorga delivering the process plant.
The plant will allow 60,000 tonnes of household waste to be treated in the county’s first MBT plant.
Wayne Howell, Interserve Associate Director for Civil Engineering, said: “Planning permission was granted for this project two years ago and Interserve has been working with Hills Waste Solutions during this period to bring this project to fruition.
“It has now been confirmed that Interserve will be involved in the project and we are pleased to be working alongside Hills Waste Solutions and Wiltshire Council.
“The Northacre facility will reduce the proportion of Wiltshire’s municipal waste sent to landfill to less than 20%, from a current level of around 37%.
“Interserve has a track record of working together with clients in partnership and sees investment in an intelligent approach from this important emerging sector as something that will make an important contribution to the successful management of waste in the UK.”