Case study

Greenwall for greywater treatment and reuse

Image:

Objective:

Green wall treating greywater from four apparttments and being reused in toilet flushing. It uses a horizontal flow green wall coupled with an ozonation.

Start/end date:

Actions:

Monitoring treatment performance

Monitoring biomass production

Monitoring social acceptance

Organisations:

Catalan Institute for Water Research

Agència de l'Habitatge de Catalunya

Global goals:

  • 6. Clean water and sanitation

NBS goals:

  • Enhancing sustainable urbanization
  • Developing climate change adaptation
  • Improving risk management and resilience
  • Urban regeneration through nature-based solutions

NBS benefits:

  • Developing climate change adaptation; improving risk management and resilience
  • Reduce drought risk
  • Reduce load to sewer system
  • Reduce risk of damages from drought
  • Developing climate change mitigation
  • Carbon sequestration and storage
  • More energy efficient buildings
  • Increase Biodiversity
  • Enhancing sustainable urbanisation
  • Changing image of the urban environment
  • Creation of green jobs relating to construction & maintenance of NBS
  • Increase awareness of NBS solution & their effectiveness and co benefits
  • Increase stakeholder awareness & knowledge about NBS
  • Reduce costs for water treatments