Updating wastewater treatment pathways for the Seventh Carbon Budget

Amounts and figures

Description

Wastewater treatment emissions are a small proportion of total UK emissions, but this proportion increases by 2050 in our Sixth Carbon Budget scenarios, as other sectors largely decarbonise while wastewater emissions only fall by a small amount. Assumptions on emission reductions from wastewater in our Sixth Carbon Budget scenarios were based on academic papers and discussions with academics and stakeholders in the water industry. This resulted in emission reductions of 20% by 2030 in three of our scenarios, including the Balanced Pathway. This increased to a 50% reduction by 2050 in two of our scenarios (Widespread Innovation and Tailwinds). The main solutions assumed to deliver this abatement were: • Across all scenarios - conversion of wastewater treatment plants to advanced anaerobic digestion systems (increasing the amount of biogas extracted and reducing methane emissions) and process optimisation improvements and leak identification using on-site emissions monitoring of CH4 and N2O. • More ambitious scenarios - more innovative options such as membrane-aerated biofilm reactors or partial nitrification-Anammox processes. Water companies in England and Wales submi…

Official publications

• Scoping study to assess the resilience of the UK's cold supply chain to rising and extreme temperatures
  Published: 8 May 2024
• BE23235 - Climate Change Risk Assessment 4 Technical Report
  Published: 7 May 2024
• Developing spatial indicators of vulnerability to the impacts of climate change in the UK.
  Published: 12 March 2024
• Early engagement notice - Risks to health and the health service due to extreme heat
  Published: 18 January 2024
• Residential Buildings Assumptions
  Published: 18 January 2024
• Updating wastewater treatment pathways for the Seventh Carbon Budget
  Published: 17 January 2024
• Early engagement notice - Heat risks to the urban environment and health
  Published: 17 January 2024
• Early engagement notice - Interventions for building economy-wide water resilience
  Published: 10 January 2024
• Early Engagement Notice - Assessment of climate risks to UK cold-supply chains
  Published: 13 December 2023
• Climate Change Risk Assessment 4 - Technical Report
  Published: 7 December 2023

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Frequently asked questions

What is the deadline to bid for this tender?

The submission deadline is 17 January 2024, 23:59. Check the official source, as dates can be modified.

What is the estimated value of this tender?

The estimated value published by the buyer is £25,000.

Who is the buyer of this tender?

The contracting authority is The Committee on Climate Change (United Kingdom).

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