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Avonmouth IBA plant planned for Cardiff incinerator ash

By 21/10/2016News

Day Group Limited is seeking a permit to operate a 130,000 tonnes-per-year incinerator bottom ash (IBA) recycling plant, currently under construction in Avonmouth near Bristol.

The facility, which is being built at the former CWS Flour Mill site at the Royal Edward Docks, will process the IBA generated at Viridor’s nearby Trident Park energy from waste centre in Cardiff.

Days will source the IBA from the Trident Park facility in Cardiff

Days will source the IBA from the Trident Park facility in Cardiff

It is the latest in a string of waste treatment centres either in operation or being considered for the area.

The Incinerator Bottom Ash Recycling Facility will be managed by Day Aggregates, a subsidiary of the Group and one of the largest processors of IBA in the country.

IBA is a by-product of the energy from waste process typically containing materials such as ceramics, glass and some metals which can be crushed and used as an aggregate in road applications.


Material processed at the Avonmouth site will be separated into fine and coarse aggregates and will be sold for application in earthworks, pavement construction and asphalt manufacture.

Days Aggregates already converts around 80,000 tonnes of IBA per year produced via the Grundon Lakeside Energy from Waste Centre in Colnbrook.

Work to build the Avonmouth plant began in July, with Day Group submitting an environmental application to the Environment Agency this week.

An online consultation to assess public views on the plant will run until 16 November this year. Day Group has carried out an environmental risk assessment and has limited receipt of IBA at the site to 70 tonnes per day.

The site will not store more than 10,000 tonnes of raw IBA or 20,000 tonnes of the aggregate product at any one time.


If approved, the Day Aggregates facility will join Carbon8 Aggregates’ £4 million Avonmouth plant – which handles hazardous air pollution control residues (APCR) from Viridor’s Trident Park site.

The Avonmouth Docks have become widely associated with residual waste treatment in recent years, with Veolia buying Boomeco’s RDF operation in January and Dorset Waste Partnership expanding the amount of waste it sends to New Earth’s MBT plant in March (see story).

Viridor has also hinted its interest in revisiting plans for an energy from waste plant at Avonmouth in the near future, following talks with the Somerset Waste Partnership on diverting waste from landfill to a new site (see story).

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Source: Waste Managment