From methane to microplastics: 14 SMEs receive support to tackle concrete environmental challenges

How do we reduce CO₂ in construction, utilise valuable materials better, protect the marine environment, handle microplastics, or develop new sustainable products?

14 Danish SMEs have now received support through new Knowledge Bridge Express projects to test early prototypes, clarify technical assumptions and document whether their solutions can create real environmental impact.

“A Knowledge Bridge Express project allows companies to test their ideas in practice. When development takes place together with a knowledge partner, the results become far more useful,” says Michael Johansen, Head of Development at Clean.

Here are the questions the companies will now investigate

WOHN — Circular and fire-safe construction in 3D-printed PA6/fibreglass

WOHN is developing passive fire protection for 3D-printed building modules made from upcycled PA6/fibreglass. The project examines how coatings, material combinations and geometry can meet SBI and K1 10 classification requirements. DBI provides fire-technical expertise and testing facilities. The solution has the potential to reduce CO₂ emissions by more than 90% compared to traditional construction.

Nordic Urban Mining — Recovery of precious metals from incinerator bottom ash (IBA)

Nordic Urban Mining is testing a new process that combines mechanical treatment with a specially developed chemical agent to extract precious metals early in the recycling process. FORCE Technology analyses the fractions and validates the efficiency. The aim is to reduce chemical and water use and ensure that critical raw materials are not lost.

Sensemakers — AI tool for visual seabed analysis

Sensemakers is developing an AI-based analysis tool that classifies seabed types using underwater photos captured by their SenseBoat USV. DHI develops data processing and segmentation models. The project investigates whether automated filtration can make marine monitoring more scalable and less resource-intensive.

PEATZ — Digital ecological prioritisation of wetland restoration

PEATZ is testing a new digital method that combines ecological data layers and AI to identify the areas where restoration would produce the greatest climate and nature gains. The Danish Technological Institute develops the analytical logic and tests the method. The project will document whether digital decision support can accelerate restoration and reduce uncertainty for landowners.

NXPAS — Online monitoring of amines in CO₂ capture

NXPAS is developing a laser spectroscopic sensor for real-time measurement of amine residues in CO₂ capture facilities. The Danish Technological Institute performs validation in laboratory and process environments. The project examines whether online monitoring can reduce emissions, increase safety and strengthen operational efficiency in future CCUS solutions.

SmartBrønd — Optimised stormwater management via digital twins

SmartBrønd tests integration between their controllable water brake and digital twin platforms. DHI provides Future City Flow and supports model integration. The project investigates whether automatic control based on real-time data can reduce overflows, optimise capacity use and minimise damage during extreme rainfall.

ASPRAY — Rapid visual screening for asbestos

ASPRAY is conducting a laboratory proof of concept to assess whether aptamers can bind selectively to asbestos fibres and produce a clear visual signal. The Danish Technological Institute designs and carries out the tests. The project is a crucial first step towards a rapid screening tool that can reduce waiting times and risks during demolition.

CARA Cooling — Technical testing of water-based cooling prototype

CARA Cooling is testing a laboratory prototype of its water-based cooling technology, which uses surplus heat as an energy source. In collaboration with DTU PowerLab, the company carries out measurement series to map the turbo compressor’s operating range, temperatures and energy performance. The project aims to establish a technical foundation for optimising components and clarifying the technology’s application potential before further development towards demonstration and full-scale operation.

Stonereefs — 3D-printed concrete reefs with biofilm

Stonereefs is developing 3D-printed reef modules in low-CO₂ concrete combined with biofilm to accelerate biological colonisation. The Danish Technological Institute develops the concrete mix, while the University of Copenhagen develops the biofilm. The reefs are tested in Aarhus Harbour to assess biodiversity effects and scalability.

BAIONYX — Microplastic filtration in urban drainage

BAIONYX is investigating new filter mesh types and sequential filtration principles to capture microplastics directly in drainage systems. The Danish Technological Institute advises on test design. Frederiksberg Municipality acts as a test site. The aim is to document performance under different hydraulic conditions.

Scan-Plast — BioCharCov: reduction of greenhouse gases from cattle barns

Scan-Plast, in collaboration with Danish Waste Solutions, Ny Vraa Bioenergy and the Danish Technological Institute, is testing a new filter technology that concentrates and breaks down methane and other greenhouse gases from cattle barns. The project examines adsorption in biochar/zeolite and subsequent microbial reduction.

Ove Kock — Air purification system for waste collection trucks

Ove Kock is developing and testing a combined cyclone and filter system designed to reduce particles, microorganisms and odours around waste collection trucks. Zoeller Group provides technical components, and Odense Renovation serves as the pilot municipality. The Danish Technological Institute performs real-time measurements and validation.

CYCLEUP — Regeneration of used casting boards

CYCLEUP is developing a regeneration method for used casting boards using microwave technology, thermosetting adhesive and a new surface film. FORCE Technology performs strength and durability tests. The project will document the potential for circular recirculation in construction.

Femi.Eko — Plant-based absorbent layers in period underwear

Femi.Eko is developing polyester-free period underwear based on hemp and organic cotton. The Danish Technological Institute tests durability, comfort and leak resistance. The project examines whether plant-based materials can provide the same functionality, reduce microplastics and improve hygiene without PFAS or biocides.