New Circular Economy Business Model for More Sustainable Urban Construction


One of the central activities of the project is to demonstrate in a large scale the newly developed circular economy business model CinderCEBM and the one-stop-shop CinderOSS service enabling their maturation and successful  implementation.

This will be done through demonstrations of CinderCEBM and CinderOSS service in six different functional environments, i.e. Slovenia, Croatia, Spain, Italy, Poland and the Netherlands. While actual demonstration of construction with SRM based materials will be implemented in Slovenia, Croatia and Spain, testing of CinderCEBM and CinderOSS will also be carried out in the Netherlands (one of the most advanced countries in recycling in EU), Poland and Italy. Through this the basic conditions for the implementation of a business model such as the prices of waste handling and of SRMs, the availability of materials, non-technological barriers and incentives, will be checked.

  • State-of-the art:

    There is no harmonised approach across Europe for sludge treatment. Different approaches, listed from the least favourable to the most favourable BAT approach, include: landfilling, incineration, extraction of phosphorus after incineration and extraction of phosphorus before incineration. 

    The latter approach is usually implemented in centralised wastewater treatment plants (or up the chain), as a measure to reduce the operational and maintenance costs of the utility by preventing the clogging of the wastewater collection and treatment infrastructure with struvite. However, the approach is not wide-spread, because the (new) P-product is relatively new to the market and poses problems for utilities in terms of storage valorisation and market uptake.

  • State-of-the art:

    Some recycled materials such as construction and demolition waste, a few types of manufactured aggregates, i.e. slag aggregate and foundry sand have already been partly used in some European countries in construction, though in relatively small quantities and mainly for low grade applications. The potential of many other materials from municipal waste treatment, especially numerous industrial waste, sewage sludge and inert heavy fraction from municipal waste still remains unused, in particular when taking into consideration their immense possibilities in terms of mass flows and synergic effects for production of new construction composites.

  • Use of SRM materials:

    1. Revitalisation of  a degraded area with SRM based construction products
    2. Pilot constructions of small facilities  (Slovenia, Croatia, Spain)
    3. Road construction