Industrial symbiosis

Industrial symbiosis

Industrial symbiosis is a type of eco-industrial development which is an application of the concept of industrial ecology. Industrial ecology is a relatively new field that is based on the ideology of nature. It claims that industrial ecosystem may behave similar to the natural ecosystem where everything gets recycled.

Eco-industrial development is one of the ways in which industrial ecology contributes to the integration of economic growth and environmental protection. Some of the examples of eco-industrial development are:
*Recycling Clusters
*Green Companies' Clusters
*Redevelopment of industrial parks
*New development of eco-friendly industrial parks
*Eco-friendly resource exchange networks (not confined in the same area)

Most of the above eco-industrial developments are based on sectoral and geographical context and do not appreciate the diversity of the industrial ecosystem. Industrial symbiosis has recently gained prominence as one of the best approaches to strive for eco-industrial development. Industrial symbiosis does not limit itself to sectoral boundaries and / or geographical restrictions. It is the diversity and the openness of industrial symbiosis that makes it a unique approach to eco-industrial development.

Industrial symbiosis can be defined as sharing of information, services, utility, and by-product resources among one or more industrial actors in order to add value, reduce costs and improve environment.Industrial symbiosis is a subset of industrial ecology, with a particular focus on material and energy exchange.

Industrial symbiosis engages traditionally separate industries in a collective approach to competitive advantage involving physical exchange of materials, energy, water, and/or by-products. The keys to industrial symbiosis are collaboration and the synergistic possibilities offered by geographic proximity” [ Chertow, M. R. 2000. Industrial Symbiosis: Literature and Taxonomy, Annual Review of Energy and the Environment, 25: 313-337.] . Such a system collectively optimizes material and energy use at efficiencies beyond those achievable by any individual process alone. IS systems such as the web of materials and energy exchanges among companies in Kalundborg, Denmark have spontaneously evolved from a series of micro innovations over a long time scale [Ehrenfeld, J. and Gertler, N. 1997. Industrial Ecology in Practice: The Evolution of Interdependence at Kalundborg, Journal of Industrial Ecology 1(1): 67.] ; however, the engineered design and implementation of such systems from a macro planner’s perspective, on a relatively short time scale, proves challenging. Often, access to information on available by-products is non-existent. These by-products are considered waste and typically not traded or listed on any type of exchange.

Example

Recent work reviewed government policies necessary to construct a multi-gigaWatt photovoltaic factory and complementary policies to protect existing solar companies are outlined and the technical requirements for a symbiotic industrial system are explored to increase the manufacturing efficiency while improving the environmental impact of solar photovoltaic cells. The results of the analysis show that an eight-factory industrial symbiotic system can be viewed as a medium-term investment by any government, which will not only obtain direct financial return, but also an improved global environment [Pearce, J.M. 2008. “Industrial Symbiosis for Very Large Scale Photovoltaic Manufacturing”, Renewable Energy 33, pp. 1101–1108. [http://dx.doi.org/10.1016/j.renene.2007.07.002] ] .

References

See also

*Eco-industrial park
*Industrial ecology
*Industrial metabolism


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