Environment | Knauf Australia


Energy efficiency and CO2e

Knauf works to improve energy efficiency by significant upgrades to plant and equipment, consideration of alternative energy sources as well as by changing work practices and the education of employees. 

Knauf has implemented a number of projects to take action in this area, including:

• Recovering waste heat from the plastermill back into the production process, improving energy efficiency and reducing carbon emissions
• Heat recovery systems used to save up to 8% of overall natural gas consumption in the dryer.

Knauf has participated in government programs such as the Energy Efficiencies Opportunities program run by the Department of Resources, Energy and Tourism. Under the program, opportunities for improving energy efficiency were identified, implemented and reported both publicly and to the federal government. While this program has now ended, Knauf's Public Reports may be viewed on the Reports page.

Water conservation

Water plays an important role in the manufacture of plasterboard. As water scarcity becomes more apparent, we aim to use water as efficiently as possible. We measure, review and report on water consumption at our manufacturing plants, with the objective of making continual improvements in production efficiencies to conserve water resources. Through our participation in the Sydney Water’s “Every Drop Counts” program, we reduced our annual water consumption by 6%, or 14,500 litres per day.

Stormwater is harvested for use in our manufacturing processes. Whenever there is rain water in the collection system, the demand of town water required in our plants can be halved in Matraville and removed from Altona. Knauf has participated in water reporting programs for the NSW Office of Environment and Heritage and the Victorian EPA via the EREP (Energy Resource Efficiency Plan) program.

Management of waste and emissions

Waste management occurs throughout the plasterboard life cycle – during the production processes, on a job site and at the end of life of the plasterboard. Plasterboard is 100% recyclable at all of these stages. Knauf is committed to an ongoing process of minimising waste to landfill. We recycle waste gypsum back into the production process. Waste plasterboard may also be re-used as soil conditioner for land rehabilitation and to make gluts for storage and transport of plasterboard.

Knauf measures and reports on individual waste streams in the production process, including other emissions such as noise and dust. To ensure our operations are safe for employees and stakeholders and to comply with legislation, regular testing is conducted for occupational exposure such as for dust and noise.

Air monitoring: Matraville Plant, NSW

Air monitoring is no longer an environmental protection licence condition for Matraville Plant. The EPA has carefully reviewed the dust deposition monitoring being conducted, the position of the monitor and the results; and concluded that the monitoring requirement could be removed from the licence as other licence conditions regulate dust management.

Monitoring Reports

Previous monitoring reports may be viewed on the Reports page.

External notification and communication

To give feedback or make a complaint regarding the environment for our sites:

Matraville environmental hotline 02 9311 6905

All other sites, contact us on 1300 724 505 and ask to speak to the manager for that site.

Alternatively, you may use the Contact Us form on our website to email us your inquiry or email us at environment.NSW@knaufplasterboard.com.au