Nature and Biodiversity

The Dutch have built a cycle lane from used toilet paper

The silhouette of a cyclist is seen on a bike lane in Zurich, Switzerland August 29, 2017.  REUTERS/Arnd Wiegmann - RC149E55FC60

Two Dutch companies are turning toilet paper into a road-building material. Image: REUTERS/Arnd Wiegmann

Alex Gray
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Can you imagine cycling on a road made from used toilet paper? The Dutch – known for their love of two-wheeled transport – are doing just that, thanks to an innovative waste recycling scheme.

Turning toilet paper into asphalt

Image: Friesland

The Dutch reportedly use around 180,000 tons of toilet paper every year. Two Dutch companies – CirTec and KNN Cellulose – have developed the technology to turn that waste into a road-building material.

It’s being tested in the Dutch province of Friesland on a 1 km stretch of the bike path that connects the Frisian capital of Leeuwarden to the town of Stiens.

How does it work?

Image: CirTec

Cellulose is the main ingredient in paper, but the plant-based fiber has many other industrial uses too.

The toilet paper flushes through to a waste treatment plant where it is filtered out, cleaned and sterilized at very high temperatures. The end result is a fluffy material or pellet that can be used in asphalt.

It can also be used for bioplastics and building materials. Much of the toilet paper in the Netherlands is high quality, which means that it is high in cellulose, resulting in a better end-product.

Treated in the normal way, the toilet paper would remain in the sludge and be burned at the waste treatment plant.

Have you read?

Scaling up

It’s a cost-effective business model, claims the company. Carlijn Lahaye, CirTec’s Managing Director, told the BBC: “You remove something that is a burden in the waste treatment process plus you turn it into a high-value product that you can sell.”

The company says it is recovering about 400 kg of cellulose a day. Some of this is exported to England where it is used as a raw material to produce bio-composite. The remaining cellulose is used for the production and development of other products.

The challenge will be in scaling up the model, but the company is upbeat: it claims to be talking to other customers in order to apply the technology on a larger scale.

There is the obvious “yuk” factor in cycling on a road made from used toilet paper, but local residents don’t seem too concerned:

“It’s a strange idea for people that there’s [toilet paper] in the road,” says Michiel Schrier, provincial governor of Friesland. “But when they cycle on it or feel it, they can see that it’s normal asphalt.”

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Nature and BiodiversityFourth Industrial Revolution
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