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Water consumption and recycling


Rainwater Collection
We collect rainwater from the greenhouse roofs, which we later use for irrigation. The water that the plants do not use is then collected and reused, resulting in 100% efficiency of water usage. Our 9,000m3 rainwater tank allows us to be self-sufficient. Rainwater is free from sodium and is the preferred alternative for our plants.


Sand filters
The water we recycle runs through sand filters, where organic matter, such as fungi and bacteria, are broken down at a microbiological level. The sand filters enable us to clean and recycle irrigation water


What happens to the water when we water the plants in the greenhouse?
The plants are watered by flooding the tables that the plants sit on in pots, and here they absorb as much water as they need before it flows back through the sand filters - where it gets stored in large tanks ready for the next watering .The recirculating system is 100% closed.


Plants release water into their surroundings just like humans and animals. The plants are the largest contributor to the humidity in the greenhouse; they emit a lot of water in connection with vital processes such as photosynthesis and respiration.


We collect the water which evaporates and condenses on the inside of the glass in the greenhouses. The condensed water is reused, and furthermore we take advantage of the energy in the water via the heat exchangers. When we dehumidify the greenhouses in this way, we avoid the traditional way of dehumidifying, using a combination of heat and ventilation instead, and by avoiding opening the windows we hold in the heat and save energy.

Read more about heat exchangers and heat pumps
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