Example 1

« Be rewarded for your commitment».

Source : Hoekstra & Chapagain


A cotton T-shirt has an average water footprint of 2’700 litres (www.waterfootprint.org).
Cotton traders or trade finance or cotton users can prioritise cotton crops irrigated partially from treated wastewater to reduce costs and risks.
The cotton farming area will then get improved access to sanitation, dignity and energy.
The combination of this order for this order for sustainable cotton farming with other commitments for bio-cements, energy or other wastewater by-products can then lead to improved wastewater amortisation.


  1. A textile brands and/or public procurement and/or companies/hotels commit to off-take garments with wastewater reuse value chain.
  2. The transaction is then broadcast within our members (wastewater supplier, cotton farmer, …etc). Crops and civil engineering services validate the transaction. Wastewater reuse for increased access to sanitation and reduced costs, risks and carbon emissions.
  3. W2AREX wastewater suppliers in this transaction get dividends for their circular economy commitment basis smart metered info linked to the digital wastewater utility.