Nitrogen removal in a two-stage, re-circulating waste stabilisation pond system

Baskaran, Kanagaratnam and Farago, L 2007, Nitrogen removal in a two-stage, re-circulating waste stabilisation pond system, Water Science and Technology, vol. 55, no. 11, pp. 57-63, doi: 10.2166/wst.2007.335.


Title Nitrogen removal in a two-stage, re-circulating waste stabilisation pond system
Author(s) Baskaran, KanagaratnamORCID iD for Baskaran, Kanagaratnam orcid.org/0000-0002-3011-6632
Farago, L
Journal name Water Science and Technology
Volume number 55
Issue number 11
Start page 57
End page 63
Total pages 7
Publisher IWA Publishing
Place of publication England
Publication date 2007-06-27
ISSN 0273-1223
1996-9732
Summary Waste stabilisation ponds are used widely in Australia and other parts of the world for treating wastewater from domestic and a wide range of industrial sources. It remains a popular form of treatment for wastewater for many small rural towns. The development of a two-stage, re-circulating waste stabilisation pond incorporating algal-bacterial biofilm represents a new approach to increasing the functioning biomass within the water column to improve treatment efficiency. This new approach will be a more viable and economical option for most of the existing waste stabilisation ponds to achieve significant nitrogen removal than converting them to another form of biological nutrient removal processes. A laboratory-scale, two-stage, re-circulating system incorporating “Bio-Tube” plastic modules as attached growth medium has been tested using synthetic wastewater. It has been proven that nitrification–denitrification was the primary mechanism for nitrogen removal in such a system operated under complete mix conditions. During the experimental period, average removal efficiencies of 90–95% of ammonia nitrogen and 65–85% of total nitrogen removal were achieved with influent COD of 600 mg/L and total nitrogen of 70 mg/L.
Language eng
DOI 10.2166/wst.2007.335
Indigenous content off
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30126059

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