Use Case

OikosNomos.world (ONW), aims to build water taps in the desert, turning sea water into drinking water, by using solar energy to pump sweet water from boreholes, or by converting night time dew to drink.

The technology is there. The largest version of a desalination machine, for example, is a 20-foot container with filters (membranes) for reverse osmosis, and solar panels to power it. The machine costs $200,000 to purchase and install. It produces 100,000 liters of clean water per day, using nothing but free and plentiful seawater and sunshine. The water will be sold commercially to parties such as brewers and beverage companies at a premium price, to make SeaBeer, SeaDrink, or SeaJuice. Water will be given away for free to poor populations in the direct vicinity of the tap.

They will use their mobile phones to open the tap. It will then release two to five liters of water. This can be repeated as often as required and prevents misuse.

Any water produced but not sold will go into fishponds, to be run by the local community. In return, they will provide physical security, e.g. against theft or vandalism, and do simple maintenance worksuch as cleaning the pipes and filters. The ponds themselves are simple, mere holes in the ground of approximately one cubic meter, lined with plastic sheets, and home to 10-15 fish (e.g. catfish, or tilapia).

We want to finance this! Not through donations or one-off kindness, but via sustainable financial instruments such as an interest-bearing bond, the DeFi Hunger & Poverty Water Bond.

Challenge

The challenge is to write an article of maximum 2,000 words that describes a solution to address the use case outline. The best three articles (technical report, methodology, etc), will be submitted to the Blockchain in Healthcare Today Platform Approaches Journal for editorial review and publication at no cost.

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.