History
The Kalundborg Industrial Park was not originally planned for industrial symbiosis. Its current state of waste heat and materials sharing developed over a period of 20 years. Early sharing at Kalundborg tended to involve the sale of waste products without significant pretreatment. Each further link in the system was negotiated as an independent business deal, and was established only if it was expected to be economically beneficial.
The park began in 1959 with the start up of the Asnæs Power Station. The first episode of sharing between two entities was in 1972 when Gyproc, a plaster-board manufacturing plant, established a pipleine to supply gas from Tidewater Oil Company. In 1981 the Kalundborg municipality completed a district heating distribution network within the city of Kalundborg, which utilized waste heat from the power plant.
Since then, the facilities in Kalundborg have been expanding, and have been sharing a variety of materials and waste products, some for the purpose of industrial symbiosis and some out of necessity, for example, freshwater scarcity in the area has led to water reuse schemes. In particular, 700,000 cubic meters per year of cooling water is piped from Statoil to Asnaes per year.
A timeline of the creation of the industrial park:
- 1959 The Asnæs Power Station was started up
- 1961 Tidewater Oil Company constructed a pipeline from Lake Tisso to provide water for its operation
- 1963 Tidewater Oil Company's oil refinery is taken over by Esso
- 1972 Gyproc establishes plaster-board manufacturing plant. A pipeline from the refinery to the Gyproc facility is constructed to supply excess refinery gas
- 1973 The Asnæs Power Station is expanded. A connection is built to the Lake Tisso-Statoil pipeline
- 1976 Novo Nordisk starts delivering biological sludge to neighboring farms
- 1979 Asnæs Power Station starts supplying fly ash to cement manufacturers in northern Denmark
- 1981 the Kalundborg municipality completes a district heating distribution network within the city that utilizes waste heat from the power plant
- 1982 Novo Nordisk and the Statoil refinery complete construction of steam supply pipelines from the power plant. By purchasing process steam from the power plant, the companies are able to shut down inefficient steam boilers
- 1987 The Statoil refinery completes a pipeline to supply its effluent cooling water to the power plant for use as raw boiler feed water.
- 1989 The power plant starts using waste heat from its salt cooling water to produce trout and turbot at its local fish farm
- 1989 Novo Nordisk enters into agreement with Kalundborg municipality, the power plant, and the refinery to connect to the water supply grid from Lake Tisso
- 1990 The Statoil refinery completes construction of a sulphur recovery plant. The recovered sulphur is sold as raw material to a sulfuric acid manufacturer in Fredericia
- 1991 The Statoil refinery commissions the building of a pipeline to supply biologically treated refinery effluent water to the power plant for cleaning purposes, and for fly ash stabilization
- 1992 The Statoil refinery commissions the building of a pipeline to supply flare gas to the power plant as a supplementary fuel
- 1993 The power plant completes a stack flue gas desulfurization project. The resulting calcium sulphate is sold to Gyproc, where it replaces imported natural gypsum
Read more about this topic: Kalundborg Eco-industrial Park
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