Journal article

Biofilter design for effective nitrogen removal from stormwater - influence of plant species, inflow hydrology and use of a saturated zone

Emily GI Payne, Tracey Pham, Perran LM Cook, Tim D Fletcher, Belinda E Hatt, Ana Deletic



The use of biofilters to remove nitrogen and other pollutants from urban stormwater runoff has demonstrated varied success across laboratory and field studies. Design variables including plant species and use of a saturated zone have large impacts upon performance. A laboratory column study of 22 plant species and designs with varied outlet configuration was conducted across a 1.5-year period to further investigate the mechanisms and influences driving biofilter nitrogen processing. This paper presents outflow concentrations of total nitrogen from two sampling events across both 'wet' and 'dry' frequency dosing, and from sampling across two points in the outflow hydrograph. All plant species..

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Awarded by ARC Linkage project undertaken at Monash University

Awarded by ARC

Funding Acknowledgements

This paper presents results from an ARC Linkage project (LP0990153) undertaken at Monash University with funding and generous support from the Australian Research Council, West Australian Department of Water (Antonietta Torre and Tania Liaghati) and Melbourne Water (Marion Urrutiaguer). Fletcher is supported by an ARC Future Fellowship (FT100100144). We would like to also thank Richard Williamson, Frank Winston, Tony Brosinsky, Jennifer Read, Tina Hines, Keralee Browne and Vera Eate for their assistance with this project and the anonymous peer reviewers for their valuable suggestions to improve the paper.