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Mechanical Biological Treatment

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Mechanical Biological Treatment is a generic name for a range of processes. In its simplest form waste is mechanically sorted and prepared ready to then undergo Aerobic Composting as the biological treatment phase in an enclosed building or enclosed vessels, which stabilises the waste, reduces moisture and carbon, and produces recyclate, a Compost Like Output (CLO) and Waste Derived Fuel (WDF).

In its desire to stimulate investment in waste infrastructure, and underpin the diversion of BMW waste from Landfill, the Government supported/subsidized a range of treatment technologies on a number of sites that were procured by Waste Disposal Authorities needing this infrastructure through a dedicated long term Private Finance Initiative (PFI). This arrangement has now ceased, several schemes which were to have been funded had their funding removed after DEFRA assessed [1] that the BMW targets could be met with the infrastructure funded to that date, and several are currently being considered by Waste Disposal Authorities for movement out of PFI after consideration of the cost benefit of continuing with the contract and several that have been removed (i.e. Lancashire) or have had closed with major restructure (i.e. Sheffield and Greater Manchester).

The table below is an extract from DEFRA data [2] summarizing the residual waste projects that are/were PFI and PPP projects with additional commentary/notes added:

Location Project/Site Classification Status Capacity [3] (ktpa) Plant Type Comment
Avonmouth New Earth Solutions PPP Uncertain [4] 372 MBT Bought out of administration by PandaGreen,currently services West of England, contracts lost to Suez and Viridor from March 2020
Birmingham Landor Street PPP Mothballed[5] 165 MBT Suez facility producing SRF moved to their site in Rugby, to supply Cemex cement kiln in Rugby
Cambridgeshire Waterbeach PFI Operational[6] 200 MBT Amey Cespa site with variable performance reported, planning being pursued for new EfW on the site
Cumbria Hespin Wood PPP Mothballed[5] 66 MBT Renewi 25 year contract from 2009 for Cumbria reported as under financial difficulty [7]
Cumbria Barrow-in-Furness PPP Mothballed 50 MBT Renewi 25 year contract from 2009 for Cumbria reported as under financial difficulty
ELWA 1 Frog Island PFI Operational 180 MBT Renewi site servicing ELWA, recently reported financial difficulty
ELWA 2 Jenkins Lane PFI Operational 180 MBT Renewi site servicing ELWA, recently reported financial difficulty
Essex Courtauld Road PFI Operational[6] 417 MBT Developed and operated by partners Urbaser Balfour Beatty servicing Essex County Council and Southend, reported operational difficulties
Greater Manchester Longley Lane PFI Operational 110 MBT Viridor Laing consortium PFI contract with GMWA terminated 2017, now Suez from June 2019 for 7 years
Greater Manchester N. Manchester PFI Operational 65 MBT Viridor Laing consortium PFI contract with GMWA terminated 2017, now Suez from June 2019 for 7 years
Greater Manchester Oldham PFI Operational 99 MBT Viridor Laing consortium PFI contract with GMWA terminated 2017, now Suez from June 2019 for 7 years
Greater Manchester Salford PFI Operational 73 MBT Viridor Laing consortium PFI contract with GMWA terminated 2017, now Suez from June 2019 for 7 years
Greater Manchester Stockport PFI Operational 92 MBT Viridor Laing consortium PFI contract with GMWA terminated 2017, now Suez from June 2019 for 7 years
Isle of Wight Isle of Wight WM Project PPP Operational 80 MBT Development between Amey and Isle of Wight Council
Leicstershire Mowmacre Hill PFI Operational 120 MBT[8] Integrated contract delivered by Biffa for Leicester City Council for 25 years from 2002
Leicstershire Cotesbach PPP Operational 50 MBT Operational plant by New Earth Solutions bought out of administration by PandaGreen,currently services Leicestershire County Council
L.B. Southwark Old Kent Road PFI Operational 100 MBT[9] Suez integrated facility servicing Southwark
Newcastle Byker/Ellington PPP Operational 187 MBT Suez facility serving primarily Newcastle
North Somerset BOOMECO Avonmouth PPP Operational 50 MBT Boomecho bought by Veolia out of administration, serviced North Somerset Council but based in Avonmouth Docks, RDF export focused
Rugby Malpass Farm PPP Operational 200 MBT Suez facility producing SRF, to supply Cemex cement kiln in Rugby, also receiving tonnage previously designated to Birmingham facility
South Yorkshire Bolton Road, Manvers PFI Operational 286 MBT Renewi partnership with SSE delivering integrated MBT and AD facility to Barnsley, Doncaster and Rotherham Waste Partnership to 2040
Swindon Chaney Manor PPP Operational 48 MBT[10] Swindon Commercial Services facility for Swindon
Wakefield South Kirby PFI Operational 146 MBT Renewi integrated contract for Wakefield City Council
West Sussex Brookhurst Wood PPP In Construction 327 MBT Biffa facility delivered for West Sussex
Whites Pit, Poole Canford PPP Operational 50 MBT Operational plant by New Earth Solutions bought out of administration by PandaGreen,currently primarily services Bournemouth
Wiltshire Northacre Farm PPP Operational 60 MBT Hills site at Westbury servicing Wiltshire Council

References

  1. ↑ DEFRA Waste Infrastructure Delivery Programme
  2. ↑ DEFRA Residual Waste Treatment Infrastructure Project List dated 31st December 2016 but noted as last updated 29th March 2019 (edited with press updates)
  3. ↑ The capacity has been reproduced from the DEFRA data, but has not been verified in this table, and in some cases is known not to be up to date
  4. ↑ Future of site uncertain, still operational to contract handover, but site up for sale as of Jan 2020
  5. ↑ 5.0 5.1 Cite error: Invalid <ref> tag; no text was provided for refs named moth
  6. ↑ 6.0 6.1 In original data site was listed as In Construction this has been changed to Operational.
  7. ↑ Letsrecycle article re: Carlisle EfW and context of current PPP contract
  8. ↑ The technology utilized under the contract is the only one in the UK and is known as a 'Ball Mill'
  9. ↑ Integrated site includes a Gasification facility which is in extended commissioning
  10. ↑ The technology is better described as mechanical sorting or a Dirty MRF with no biological treatment as part of the process
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