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How space technology is benefiting Earth

22 Feb 2021

How space technology is benefitting Earth

How space technology is benefitting Earth

 

How space technology is benefitting Earth

 

Copenhagen, Denmark (CNN Business) Last month marked 20 years of continuous human presence on the International Space Station (ISS). Scientific research to improve life aboard the ISS has led to countless developments in space technology, but it has also brought benefits to people on Earth.

LED lighting technology developed to help astronauts avoid sleep deprivation has been adapted for domestic use; a weight-lifting system to keep astronauts fit in zero gravity is being used in home workouts.

Now a company that designed a water-purification system for the ISS is developing spin-off technologies with the potential to provide clean drinking water in the places that need it most.

Nature's filter

On the ISS, every drop of moisture, from humidity to urine, has to be filtered and reused. But the current system is very heavy, has to be replaced every 90 days, and fails to filter out certain contaminants, according to NASA.

Danish company Aquaporin A/S has developed a new system that uses proteins called aquaporins. "It is essentially the mechanism that allows water to cross the cell membrane of living cells," says Peter Holme Jensen, CEO of Aquaporin A/S.

In nature, these proteins allow plant roots to absorb water from soil, and let the two human kidneys together filter about 45 gallons of fluid per day. They are also very selective, preventing contaminants from passing through.

Having tested it in space, NASA is considering replacing its current system with Aquaporin's, but the technology is also finding uses closer to home.

46 gallery 1 headset-nasa-space-tech
Space research may seem far removed from daily life, but a surprising amount of NASA technology has found more earthly uses. Today’s wireless headsets are an updated version of technology developed for astronauts in the 1960s. Before then, headsets used by airplane pilots were bulky and uncomfortable, but NASA commissioned a headset that could be implanted in an astronaut’s helmet. It was used to transmit Neil Armstrong’s words when he landed on the moon.
 
Over 2 billion people worldwide don't have access to clean drinking water, and in developed countries, many people don't trust the safety of tap water. More than half of households in the United States are concerned about the quality of their water supply, and only 55% of Europeans drink water directly from the tap.
 
Aquaporin's technology could help. The company is working with wastewater companies — including BIOFOS, Denmark's largest state-owned wastewater utility, and UTB Envirotec in Hungary — to remove micropollutants and microplastics from wastewater, preventing them from flowing into the sea.
 
A study conducted at BIOFOS showed that aquaporins remove over 95% of microplastics and micropollutants in wastewater, using much less energy than traditional systems.
 
"It has an enormous potential," says BIOFOS innovation manager Dines Thornberg, who led the study. "I think the Aquaporin system could lead the way in actually creating clean, affordable drinking water from wastewater in the future. I am really optimistic that we can meet the challenges of water scarcity in many parts of the world with technologies like this."
 

 

46 aquaporin check water

Joerg Hess, COO of Aquaporin A/S, checks water that has been filtered using the aquaporin membrane.

Clean water at home

Jensen has also spotted an opportunity to enter the domestic water purification market — a sector that could be worth $24 billion by 2025, by one estimate.
 
Last month, Aquaporin A/S launched an under-the-sink household filtration system that works without electricity. The system costs €650 and the company is currently targeting the European market. It plans to expand to the United States, and then India and China in the next two years.
 
As production increases, its long-term goal is to offer an affordable product for water-stressed regions. "I really believe that we can make a difference," says Jensen.
 

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