A practical guide for local authorities on cutting contamination, dry recyclable materials collected at the kerbside.
In 2012/13, between 0% and 27% of materials input to Materials Recovery Facilities (MRFs) was rejected and not sent for recycling
The median figure for MRF input material not sent for recycling was 6.4% (includes those local authorities that recorded zero tonnes of material not sent for recycling).
- According to WRAP’s 3 Tracker Survey, 50% of residents do not include unwanted materials in their recycling containers
This report details how increasing quality by cutting contamination levels in dry recyclable materials collected at the kerbside can generate valuable benefits, for local authorities and their stakeholders.
Unwanted (i.e. non-recyclable or non-targeted) materials included in boxes, sacks or bins set out by householders for recycling – or placed by crews in the wrong compartments of collection vehicles results in:
- an increase in collection, sorting and reprocessing costs;
- a reduction in the quality and quantity of materials destined for recycling;
- and lower revenues and/or higher gate fees for local authorities.
Evidence from Question 58 in Waste Data Flow indicates that the degree of contamination (reported) of dry recyclables varies considerably. In 2012/13, between 0% and 27% of materials input to Materials Recovery Facilities (MRFs) was rejected and sent to waste to energy or landfill; that is, not sent for recycling. The median figure for MRF input material not sent for recycling was 6.4%, however this figure includes those local authorities (8% of authorities) that recorded zero tonnes of material not sent for recycling.\
Part A - Contamination: Causes and Costs
Part B - Four-Point Plan to Reduce Contamination and Improve Quality
Identifying whether contamination is a problem >>
Pinpointing exactly what, where and why contamination is occurring >>
Providing clear, positive information for householders >>
Introducing specific measures to tackle contamination >>
Part C – Mini Case Studies
Tewkesbury Borough Council - MRF sampling can generate valuable data on contamination >>
North Lincolnshire Council - Service leaflets can target specific types of contamination >>
London Borough of Lewisham - A clear step-by-step process can tackle repeat contamination >>
Bassetlaw District Council - Crew workshops can strengthen the fight against contamination >>
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WRAP-Dry Recyclables Improving Quality Cutting Contamination.pdf
PDF, 1.88 MB