Date lodged: 5 February 2019
To ask the Scottish Government what discussions it has had regarding widening circular economic activity in the treatment of sewage sludge after the current treatment contracts end.
Answered by: Roseanna Cunningham 20 February 2019
The Scottish Government is actively engaged with Scottish Water in relation to widening circular economic activity in the treatment of sewage sludge after the current treatment contracts end.
Scottish Water’s bioresources strategy is to secure safe, sustainable, cost-effective sludge outlets and maximise the value of sludge either as a fuel or a fertiliser. This is in keeping with Scottish, UK and European regulatory frameworks encouraging sludge to be used as a resource wherever it is safe and practicable to do so.
Further to this, Scottish Water’s bioresources strategy seeks to maximise the value of sludge and takes into consideration future return of sludge treatment assets from PFI contracts.
Scottish Water, in collaboration with SEPA under their Sustainable Growth Agreement, is running a “Value from Waste” project exploring the options for co-treatment of sewage sludge with other organic wastes. In rural/remote areas this could offer significant circular economy benefits.