Using membranes to recover phosphate in high nutrient density forms

Bradford-Hartke, Z., Leslie, G. and Lant, P. (2010). Using membranes to recover phosphate in high nutrient density forms. In: 2010 AIChE Annual Meeting, Conference Proceedings. 2010 AIChE Annual Meeting, 10AIChE, Salt Lake City, UT, (284-291). 7 12 November 2010.

Author Bradford-Hartke, Z.
Leslie, G.
Lant, P.
Title of paper Using membranes to recover phosphate in high nutrient density forms
Conference name 2010 AIChE Annual Meeting, 10AIChE
Conference location Salt Lake City, UT
Conference dates 7 12 November 2010
Proceedings title 2010 AIChE Annual Meeting, Conference Proceedings
Journal name AIChE Annual Meeting, Conference Proceedings
Series P / AIChE, American Institute of Chemical Engineers
Place of Publication New York, NY United States
Publisher American Inst. of Chemical Engineers
Publication Year 2010
Year available 2010
Sub-type Fully published paper
ISBN 9780816910656
Volume 264
Start page 284
End page 291
Total pages 8
Language eng
Formatted Abstract/Summary
Depletion of world phosphorous reserves is driving research into options to recover and recycle this essential, non-renewable resource. Phosphate (PO43-) recovery at centralised wastewater treatment plants is seen as economically unviable because of low PO43- levels compared with decentralised systems based on source separation. However, the recent growth in membrane based water recycling projects, where reverse osmosis is used to produce high quality water has resulted in the production of liquid waste streams with high concentrations of PO43-. Four recycling scenarios using different membrane processes and anaerobic treatment were compared and the potential PO43- recovery via struvite (magnesium ammonium phosphate) from membrane concentrate examined. By incorporating an anaerobic reactor in the process we have been able to investigate the possibility of cogeneration of electricity from methane. The net result is an improvement in the kWh/​kg P recovered that compares favourably with source separated decentralised facilities when water consumption is limited to 80L/​p/​d. 
Subjects 1500 Chemical Engineering
1600 Chemistry
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Chemical Engineering Publications
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