Webinar Series - Influence of US EPA Flux Chamber Configurations on Emission Measurements from Porous Media. Presenter: Dr Lisha Liu UNSW
Author Editor
Updated March 2025
This presentation is part of our ongoing webinar series being undertaken as part of the IWN Webinar Series Circular Economy – Solids stream.
This on-line webinar was presented on 28 March 2025. The recording of this webinar can be found via the IWN members site .
Below is the Flyer that was published for this event:
Influence of US EPA Flux Chamber Configurations on Emission Measurements from Porous Media
Growing concerns over volatile organic compound (VOCs) emissions from area sources have underscored the need for accurate emission assessments, as these emissions can contribute to community complaints and environmental risks. A lack of best practice for accurately measuring volatile emission rates has hindered environmental assessments.
This webinar provides an overview of how the emission rates of VOCs from porous media (e.g. biosolids) are influenced by the configuration and methodology operation of an US EPA flux chamber and elucidate the potential mechanisms driving differences in VOC emission rates. Three porous media with varying moisture contents and two VOCs were selected to assess a range of flux chamber configurations and methodology operations. Further investigations focused on emissions from biosolids, examining the implications for complex gas mixtures (VOC, volatile sulfur compounds (VSCs)) and sensorial impact.
About the speaker
Dr Lisha Liu is a PhD candidate at the UNSW Air Quality and Odour Laboratory. She recently submitted her thesis and is an Odour Engineer at Stantec, Sydney Office. Her research was conducted in collaboration with the ARC Training Centre for Transforming Australia’s Biosolids Resource and focuses on benchmarking odour and VOC measurements from area sources, with a particular emphasis on biosolids.
