In-vessel composting (IVC) can be used to treat food and garden waste, turning it into compost. It’s a three-stage process which needs to take place in a controlled and monitored environment. An environmentally friendly solution for recycling food and green household waste, the entire process takes around eight to ten weeks to stabilise the compost before it can be despatched as fertiliser.

The site at Bolton, which is part of Greater Manchester Recycling and Waste (GMR&W) programme, is the largest of its kind in Europe. The AECOM team provided geotechnical consultancy and design for all of the GMR&W sites. In Bolton, we provided geotechnical design solutions for the earthworks using lime stabilisation, grouting of shallow coal workings and innovative ground improvement using Controlled Modulus Columns (CMCs). It’s the fourth IVC facility designed by AECOM under this programme.


Patrick Cox