Sustainable water use
Ensuring sustainable water use and access to clean fresh water is essential for economic growth and welfare.
Gränges’ operations are located in areas with various water risks and water consumption is managed based on local circumstances.
The production facilities of Gränges Americas and Gränges Europe are situated in areas with low to medium risk, while the Gränges Asia plant is situated in a medium to high risk area.* No water sources are considered to be significantly affected by the water withdrawal or discharge from Gränges’ operations.
* Based on the Aqueduct Water Risk Atlas developed by the World Resources Institute.
Managing water based on local conditions
Much of Gränges’ production equipment requires cooling water for efficient operation. Lack of cooling water could result in overheating and interruptions during production.
Gränges Americas’ and Gränges Asia’s plants have closed-loop cooling systems with a high degree of water recirculation. These systems reduce water consumption and the risk of water contamination.
Gränges Asia’s plant uses municipal tap water for both production processes (mainly cooling) and for office buildings. Water from the cooling system is further re-used in other parts of the production process, for example in the cold rolling mill. Water of insufficient quality is later discharged to the local waste water treatment plant, in accordance with the local drainage permit which limits water volumes and types.
Gränges Americas’ plants withdraw ground water from the company’s own wells, which cool in a closed-loop system using non-contact cooling towers. As the system is closed-loop, and therefore contains no contaminants, the used water can be discharged to nearby water bodies without further treatment.
Gränges Europe’s plant withdraws surface water from a nearby lake which is in an area with low water stress and no restrictions on water withdrawal. The water is used to cool components and afterwards it is released into local waterways. Daily measurements are made to ensure that the released water does not contain hazardous substances. Hazardous condensates are treated before being returned to water bodies. Gränges Europe regularly sets reduction targets for water consumption.