Reuse of Fly Ash from Power Station

Summary

Fly ash is a by-product from the combustion of coal. Asnæs Power Station produces about 30,000 tonnes of fly ash on a yearly basis. The fly ash is sent to a plant in Great Britain which reclaims the nickel and vanadium. The plant supplies most of the fly ash to Aalborg Portland as a raw material for cement production (Kalundborg Centre for Industrial Symbiosis 2004).

Industry

Industry Sector	Specific Industry
energy	power station
minerals processing	metal recovery (nickel and vanadium)
building and construction	cement manufacturer

Region

Kalundborg, Denmark.

Applied Technologies

• none specified

Triple Bottom Line Aspects (direct at operational level)

Economic	savings of landfill cost for fly ash revenue from reuse fly ash (metal recovery, raw material for cement)
Environment	avoided landfill of fly ash efficient use of resources
Social	employment

Additional Comments

None.

References

• Kalundborg Centre for Industrial Symbiosis (2004) "Industrial Symbiosis", Retrieved from: http://www.symbiosis.dk/

Last Update

9 August 2006