The world's first "biosolar leaf" to tackle air pollution in London

An experimental air purification technology will be deployed in London, it has been announced, in a "world first" way to fight against pollution. Scientists are convinced that their pioneering "biosolar leaf" technology can do the work of 100 trees, while using the surface of a tree – an essential element in large cities.

Air pollution is the leading cause of death in the world, a new global index of air quality revealed last year. According to the World Health Organization (WHO), 4.2 million people die each year from ambient (outdoor) air pollution and 91% of the world's population lives in a place that exceeds the limits defined in the guidelines. WHO guidelines.

With this in mind, Imperial College London has partnered with start-up biochemical technology company Arborea to test its biosolar leaf technology to offset its West London campus, White City while demonstrating that sustainable solutions can truly solve the environmental and social problems of today. conditions of the world.

So what is a biosolar leaf and how does it work? The secret is algae.

Arborea researchers have developed a culture system that allows microscopic plants such as microalgae and phytoplankton to grow on large structures similar to solar panels that can be installed on land, buildings, and buildings. Anywhere with a roof in a built city to improve the quality of the ambient air.

Inspired by the natural process of photosynthesis, biosolar panels allow microorganisms to absorb CO₂ from the surrounding area and generate breathable oxygen again. And they also help produce a nutritious and sustainable vegetable protein with minimal environmental impact – another Arborea goal – at the same time.

"When I founded Arborea, my goal was to fight climate change while tackling critical issues related to the food system," said Julian Melchiorri, founder and CEO of Arborea. "This pilot plant will produce sustainable and healthy food additives while purifying the air, producing oxygen and removing carbon dioxide from the environment."

Melchiorri has already had some success with its amazing project "Exhale", the first living bionic chandelier in the world, using the same technology. Gloss light stimulates photosynthesis of microorganisms on leaf-shaped modules, absorbing CO₂ inside and releasing oxygen in the room. The chandelier currently occupies a prominent place in the permanent collection of the Victoria and Albert Museum in London.

The biosolar panels, meanwhile, use the natural sunlight and are infinitely scalable. Overcrowded cities will not be forced to make room for signs. Instead, they can use an existing roof space that is not used.

"Air pollution is one of the most pressing issues in London and Imperial is committed to finding lasting and resilient solutions to this threat," said the professor. Neil Alford of Imperial College added. "This collaboration with Arborea is an exceptional opportunity to showcase the power of clean technologies."