Closed challenges

Retrieve, purify and reuse liquid helium

How can we retrieve and purify liquid helium from MRI scanners to make it suitable for reuse?

Reward: Pilot project + €10,000 vouchers

Deadline: Deadline expired

Remove, store and return dismantled aircraft seats

How can we efficiently and safely remove, store and return dismantled aircraft seats from and to the aircraft?

Reward: Pilot project + €10,000 vouchers

Deadline: Deadline expired

Hightech & maintenance

Post-separation of glass and plastic particles from our food waste

How can we remove small glas- and plastic particles from our organic waste?

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired

Valorisation of sodium sulfate

How can we convert an aqueous sodium sulfate solution into something useful?

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired

Recycling composite wind turbine blades

Can you convert discarded fibreglass-reinforced composites into new high-grade raw materials?

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired

Bio-based and biodegradable fertilizer coatings

We are looking for bio-based and biodegradable fertilizer coatings

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired

Dewatering biomass more energy-effienctly

How can we dewater our biomass more economically and energy-effienctly?

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired

Separating and valorising a waste stream containing cellulose and plastics

Who will give a second life to the waste stream containing cellulose and plastics from our hospital?

Reward: Pilot + €10.000 vouchers

Deadline: Deadline expired

Sustainable and efficient weed control

Saver is looking for a sustainable, effective and efficient way to control and manage weeds on pavements.

Reward: Pilot project + €10,000 vouchers

Deadline: Deadline expired

Alternative technology to demineralize syrups

Cargill is looking for an alternative technology to demineralize glucose-fructose syrups.

Reward: Pilot project + €10,000 vouchers

Deadline: Deadline expired

Sustainable high yield hydrogen applications

A sustainable application for residual hydrogen, with more yield than burning it as an alternative to natural gas

Reward: Pilot project + €10.000 vouchers

Deadline: Deadline expired