The Urine Recycling Startup Turning Waste into Natural Fertiliser

The Lead

Swiss startup VunaNexus has developed a technology to recycle urine into a natural fertiliser called Aurin, which is certified for use on all plants by Swiss and French authorities.

The Urine Recycling Process

The process involves collecting urine from special toilets, treating it, and concentrating its nutrients into a liquid fertiliser. The urine is collected from special toilets that separate the liquid from water, and then it is treated in a small plant in the basement of the building. The treatment process removes micropollutants and concentrates the valuable nutrients such as nitrogen and phosphorus.

The Data Analysis

The fertiliser, Aurin, is sold to farmers, used in gardens and on house plants, and is being tested by city authorities in Paris, Lausanne, and Zurich. VunaNexus says that if all the urine of people in Europe were recycled, it could cover around 30% of the nitrogen need.

The Impact Analysis

The fertiliser market has become increasingly vulnerable due to the conflict in Ukraine, which has sent fertiliser prices soaring. The UN has said that 45 million people are at risk of acute hunger because of the conflict in the Middle East as fertiliser prices soar and the supply shock threatens food security in some of the world's poorest countries.

The Prediction

VunaNexus needs to scale its fertiliser production and get paid for the wastewater treatment service it provides to become competitive on the agricultural market. The company is working on finding ways to deliver improved urban sanitation that can produce fertilisers, and its technology is being rolled out across a newly developed eco neighbourhood in Paris, which will be the biggest project of its kind in Europe.