Kalgoorlie-Boulder Improves Town Smell with Lime Treatment

Residents of Kalgoorlie-Boulder, Western Australia, have noticed a positive change in town smell after implementing lime treatment in the lagoons to address a persistent odour issue. The local council took action following a report by odour expert Philippe Najean, identifying the source near the wastewater treatment plant. By adding lime to stabilize pH levels and reduce odour emissions, the council aims to enhance the community's quality of life.

Jul 4, 2025 - 11:31
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A Western Australian town, Kalgoorlie-Boulder, has been dealing with a strong smell since 2023. The council enlisted an odour expert, Philippe Najean, to identify the source. His report revealed that the odour was coming from sources near the wastewater treatment plant. The council is now adding lime to the lagoons at the facility to stabilize pH levels and reduce odour emissions. City officials have noticed an improvement this winter compared to last year, with pH levels staying within acceptable parameters. The council is also implementing measures like mechanical aeration and upgrading the wastewater treatment plant to further reduce odour emissions. Nearby industries and businesses are also working on solutions based on the expert's report.

According to the source: 9News.

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