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Updating wastewater treatment pathways for the Seventh Carbon Budget (Arup)

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1. Outline

To inform our advice on the Seventh Carbon Budget, the CCC commissioned Arup to model emissions and potential decarbonisation pathways for the UK wastewater sector. The pathways were informed by a detailed review of wastewater decarbonisation technologies, wastewater treatment company plans and stakeholder engagement with industry experts covering both municipal and industrial wastewater.

This report reflects the views of Arup and does not represent the views of the CCC.

2. Key messages

The key messages of this report are:

  • The study considered baseline emissions for the wastewater sector, as well as alternate decarbonisation pathways.
  • It also provided estimates for costs and feasible deployment profiles for potential mitigation measures.
  • The report sets out key limitations and uncertainties relating to emissions factors, costs and decarbonisation potential.

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