The relationships among the firms comprising the Kalundborg Eco-Industrial Park form an industrial symbiosis. Generally. Read chapter The Industrial Symbiosis at Kalundborg, Denmark: Industrial ecology is a concept that has emerged in response to growing public concern about. The Solution: by working together and exchanging material, water, and energy streams between the partners, Kalundborg Symbiosis increases resilience and.

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Its current state of waste heat and materials sharing developed over a period of 20 years. Used cooling water For the companies symbisis the Symbiosis project, the supplies they recieve from other participants are treated as if they were bought on the regular market.

Participants save money in two ways: Popular searches what is a circular economy CE make fashion circular plastics circular economy publications china report kalundorg economy diagram dif circular economy case studies. Symbiozis Kalundborg Utility treats the wastewater from homes and companies and collects a large amount of sand from the wastewater in their sand traps.

Kalundborg Utility has 70 employees and plays a central role in the utilization of waterborne resources in the Kalundborg Symbiosis and are part of several new projects. Since we have developed the worlds first industrial symbiosis with a circular approach to production.

Steam, sludge, fly ash or hot water are some of the resources exchanged. Ka-lundborg Utility also receives residues containing ethanol, which help the processes in their cleaning plants, including the removal of kakundborg from the wastewater. Additionally, Gyproc also supplies Kalundborg Utility with heat for district heating. Novo Nordisk also contributes by utilizing surplus heat and residual fractions for example for fertilizers and the production of biogas.



One of the main goals of industrial symbiosis is to make goods and services that use the least-cost combination of inputs. Something has to give. Through the upgrading process sulfur and carbon dioxide is removed. This wat, the excess heat in the water helps saving resources. Jay and Jeanne Bragdon visited the Kalundborg Symbiosis on September 23,where they talked with project officer, Berndt Jespersen.

The Statoil refinery completed the construction of a sulphur recovery plant.

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While technically not being a symbiosis project, the pipeline was a public-private partnership between Kalundborg Municipality and Equinor Refining Denmark and is still one of the key elements of Kalundborg Symbiosis today, where companies can utilise surface water instead of the more valuable and scarce ground water resource.

As the following conceptual map of the project illustrates, the number, scope and bio-sophistication of exchanges has grown year by year.

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Furthermore, fly ash and clinker from the power plant is used for road building and cement production. As indicated by the Global Footprint Network, the earth cannot sustain present rates of resource extraction and waste generation.


Generally speaking, the actors involved in the symbiosis at Kalundborg exchange material wastes, energy, water, and information. A pipeline to supply excess refinery gas was constructed from the refinery to Gyproc facilities.


At the biogas plant biogas is produced and upgraded to natural gas quality through a refining process where carbon dioxide and hydrogen sulphide are removed from the product. This way the Kalundborg Symbiosis gives Gyproc access to local raw materials of a high quality at a compe-tetive price. The biotechnology facility is owned by Novo Nordisk.

The utilization of the excess heat happens locally, on-site, and means that the heat production uses less resources.

Kalundborg symbiosis | WE-ECONOMY

A total of 28 million patients worldwide use the insulin, that Novo Nordisk. There are currently over thirty exchanges of materials among the actors of Kalundborg. Retrieved from ” https: It seems likely that there will be dozens of exchanges established in Denmark within the next couple of years. In the official Symbiosis Center was established: Procedia Social and Behavioral Sciences. Further regional development funds were granted for the establishment of the information centre, Symbiosis Center Denmark, in Kalundborg in December