Nature Based Solutions for Domestic Water Reuse in Mediterranean Countries

About the project

In Mediterranean countries, domestic water use accounts for a minor part of water consumption - a much larger quantity is used for irrigation - but it requires the best quality and its demand is continuously growing, along with improving lifestyle and increasing urban population. Moreover, urban water is still the main cause of pollution of rivers and groundwater, even when treated before being discharged. Per capita domestic water use can be drastically reduced by using non-conventional water (NCW) resources for not potable purposes: greywater (and rainwater when available) can be reused for WC flushing and irrigation but requires the implementation of decentralised treatment systems, serving one or a few buildings. NAWAMED aims at changing the urban water management practice by mean of innovative, sustainable, and low-cost treatment technologies, applicable in a decentralised way, to replace the use of potable water with good quality of NCW. 

Key information

Nature Based Solutions for Domestic Water Reuse in Mediterranean Countries
B.4 Environmental protection, climate change adaptation and mitigation
B.4.1 Water efficiency
Italy, Tunisia, Jordan, Malta, Lebanon

Financial data

3.2 million
Total budget
2.9 million
EU contribution
Project co-financing


Project in numbers

Technical outputs

Project duration

Start date
End date





Project outputs



What will be improved?

The project will demonstrate the technical and economic feasibility of nature-based and low-cost solutions, such as living green walls, to treat non-conventional water resources in schools, universities, public facilities and in a refugee camp. Recovered wastewater or storm water will be reused for different purposes, including toilet flushing and irrigation and therefore consumption of potable water for domestic uses will be decreased. Furthermore, the project will showcase that design and architecture can make buildings water producers rather than water consumers.

Who will benefit?

  • Owners/managers of the 8 pilot sites
  • 450 practitioners (e.g. engineers, architects, etc.), construction companies, university students
  • 50 staff of local and regional authorities 

Expected achievements

  • 8 real scale pilot installation for greywater/rainwater treatment and reuse including living green walls (vertical vegetation set up on building façades) and constructed wetlands treating flows from a public building, a parking area, and a refugee camp
  • 30% reduction in water consumption at pilot sites level
  • 9,000 m3/year of non-conventional water to be reused at urban/domestic level
  • 15 technical visits to pilot sites
  • 10 training workshops organised for technical staff and decision-makers
  • 1 Mediterranean Policy Document to foster the inclusion of water demand management and non-conventional water resources measures in national policy frameworks

Project news

27 December 2019
The water situation in Jordan and the potential contribution of the NAWAMED project

According to the most recent data, Jordan is under "absolute water scarcity".


Project news

18 December 2019
"NAWAMED project will contribute to change the story of water in Lebanon"

It is estimated that Lebanon’s water resources will be inadequate to meet the expected needs of the growing population.


Project news

06 December 2019
Green, low-cost solutions for wastewater treatment: start of NAWAMED project

NAWAMED will implement new solutions for wastewater treatment and reuse for domestic and agricultural uses in Italy, Jordan, Lebanon and Tunisia.


Project news

20 November 2019
Why the NAWAMED project involves countries like Italy, Jordan, Lebanon and Tunisia?

The NAWAMED project, which aims at changing urban water management and fostering the use of Non-Conventional Water resources, involves Italy, Tunisia, Jordan and Lebanon. Learn why?