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The Netherlands Expo Pavilion Makes Its Own Water To Grow Food In The Desert Heat

The Netherlands Expo Pavilion Makes Its Own Water To Grow Food In The Desert Heat

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Sustainability is one of the key themes at Dubai’s World Expo, and with more than 190 countries represented at the six-month event, few have embodied that better than the Netherlands.
Its pavilion is itself a cutting-edge sustainable innovation, a structure whose centerpiece is an 18-meter-tall, cone-shaped vertical farm.
The brainchild of Dutch architect Michiel Raaphorst of V8 Architects, it’s described as a “biotope” (basically, an area with a uniform biological environment) that aims to “unite energy, water and food,” allowing farming even in places where the temperatures are typically too high, like in the desert heat of Dubai.
“We built a system of technology to harvest energy from the sun and water out of air,”

Growing food in the desert

Over the past few years, Dutch companies have been looking at innovations to produce energy from renewable sources, cultivate food sustainably and scale-up production from indoor vertical farms. They’re now using the biotope pavilion to showcase some of their green achievements.
A chimney at the top of the cone sucks in air to capture moisture and produces water through a condensation process powered by solar panels installed on the rooftop. With this technique — developed by Dutch company SunGlacier Technologies and designer Ap Verheggen — the pavilion can produce up to 1,200 liters of water a day. Some is available for visitors to drink and some is used to feed around 9,300 mint, basil and tomato plants dotting the surface of the cone.
The condensation process leaves high levels of CO2, making the cone the ideal place to grow other kinds of food. “It’s humid, dark, cold,” Raaphorst says. “These are the perfect conditions for edible oyster mushrooms. You can smell them here as we grow them inside the cone.”