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Orica cuts particle emissions from Kooragang Island site by around 95%

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05 Nov, 2024

This post was originally published on Sustainability Matters

Orica has announced the completion of an environmental improvement project to reduce emissions of ammonium nitrate (AN) particulate from its Kooragang Island manufacturing site in the Hunter Valley.

The project has involved retrofitting the prill tower1 with an irrigated fibre-bed scrubber2 to capture particles of AN produced during the manufacturing process.

The abatement technology is designed to reduce AN particulate emissions, including fine particles with a diameter of 2.5 µm or less, by approximately 95%. The captured emissions are then recirculated in the manufacturing process to produce critical products for the resources and medical industries across Australia.

Orica President – Australia Pacific and Sustainability Germán Morales said the project is designed to ensure the sustainability of the Kooragang Island site.

“We understand and share the community’s desire for better air quality in general, and we are proud to play a role in achieving this,” Morales said.

“From start to finish, we have worked closely with the NSW Environment Protection Authority to ensure the project meets regulatory expectations and delivers optimal outcomes for the community and the environment.”

Designing, fabricating and installing the scrubber was a multi-year, large-scale and complex engineering project, with the construction phase alone taking more than 18 months or 115,000 work hours to complete.

“Retrofitting the scrubber to an existing and operating prill tower which stands at around 52 metres high has been technically challenging,” Morales said.

“Completing this project is a great achievement for the site and a real testament to the expertise of our people.”

1. The prill tower is where liquid ammonium nitrate is turned into small, solid ammonium nitrate balls (prill).
2. An irrigated fibre-bed scrubber is designed to clean the contaminants out of a gas stream. The first stage removes large particles via woven stainless steel mesh pads. The second stage removes fine particles via what are known as Brink filters. These filters are woven tubes that accumulate and coalesce the finer particulates into solution for collection in a sump at the bottom of the scrubber.

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Circularity roadmap for construction industry announced

Circularity roadmap for construction industry announced

World Green Building Council (WorldGBC) has launched the Asia Pacific Regional Network (APN) Resources and Circularity Readiness Framework, presented at the WorldGBC hosted accelerator session, ‘Retrofitting buildings: Lessons from a global network’, as part of the World Circular Economy Forum 2025 (WCEF2025), a global event dedicated to the circular economy.

Developed by WorldGBC’s APN of 17 Green Building Councils (GBCs) as well as knowledge partners, the framework is a practical roadmap aimed at policymakers and businesses across the region to assess their circularity readiness and identify strategic priorities for action to decarbonise their building stock on both a national and regional scale.

The framework can be used as a tool to quantify the business case for circular, sustainable principles in the built environment, and support businesses and governments to reduce waste, conserve resources and lower carbon emissions. It shows the industry the practical steps it can take now towards circularity, based on its current capabilities. It sets out clear assessment criteria, specific readiness indicators and actionable guidance based on five interconnected elements:

Government leadership: Policies and regulations driving circularity at all levels.
Technical solutions: Innovative approaches enabling resource efficiency and circular material flows.
Data: Measurement systems tracking resource use and circularity progress.
Finance: Funding mechanisms supporting circular business models and infrastructure.
Mindset: Cultural shifts prioritising resource conservation and sustainable consumption.
 

The Framework further supports WorldGBC’s 2025–2027 strategic plan, which outlines the vision for a sustainable built environment, guided by global 2030 decarbonisation goals.

Joy Gai, Head of Asia Pacific Network, WorldGBC said, “The framework has been developed by sustainability experts from the Asia–Pacific, one of the most diverse regions in the world, which is defined by remarkable complexities of culture, building stocks and environmental conditions. Our network recognises that harnessing diversity is fundamental to shaping a more resilient, resource-efficient future — but we need a guide to show us how to put our ambition into action. That is why we developed the APN Resources and Circularity Readiness Framework.

“WorldGBC is proud to join our Green Building Councils and partners in launching this timely resource. It creates a common language to guide businesses through collaboration, identifying their needs and applying circular methods which support our shared vision for a sustainable and regenerative future for Asia–Pacific and beyond.”

Jeff Oatman, chair of the Asia Pacific Regional network, Head of Collaboration and membership at Green Building Council of Australia (GBCA), added, “The Resources and Circularity Readiness Framework is a timely and much-needed initiative to accelerate the transition to a more regenerative and resource-efficient built environment across our region. By offering a clear pathway for assessing readiness and driving action, it empowers governments, industry and communities to make smarter, more sustainable decisions around circularity. I’m proud to be part of this collaboration and to contribute to a tool that not only fosters innovation but also supports practical outcomes that matter for people and the planet.”

Takuji Kohama, Chief Representative, AGC Group for Asia Pacific, also commented, “A resilient built environment relies on understanding ecological interconnections and making a conscious shift from linear consumption to cyclical resource stewardship. Designing buildings and infrastructures with their lifecycle in mind maximises material efficiency and minimises waste through a holistic approach from resource sourcing to end-of-life. Prioritising design for disassembly, material recovery, reuse and repurpose transforms buildings into dynamic material banks, significantly reducing construction’s environmental impact and fostering economic and environmental sustainability.

“Participating in the formulation of Resources and Circularity Readiness Framework offers a practical path to sustainable growth in our resource-constrained and climate-challenged region. This framework empowers built environment stakeholders to adopt a regenerative, resilient mindset focused on long-term value creation, redefining design, construction and living beyond waste minimisation. We aim to catalyse greater collaboration, innovation and systemic change, positioning AGC as a regional leader in circular economy practices and a model for urban sustainability.”

GBCs will use the framework to assess their own readiness to accelerate the transition to a circular economy in the built environment, as well as supporting the Asia–Pacific market. To find out more, head to the Green Building Council of Australia website.

Image credit: iStock.com/Benjamas Deekam

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