Enhanced biological phosphorus removal for high-strength wastewater with a low rbCOD:P ratio

Broughton, Alistair, Pratt, Steven and Shilton, Andy (2008) Enhanced biological phosphorus removal for high-strength wastewater with a low rbCOD:P ratio. Bioresource Technology, 99 5917: 1236-1241. doi:10.1016/j.biortech.2007.02.013


Author Broughton, Alistair
Pratt, Steven
Shilton, Andy
Title Enhanced biological phosphorus removal for high-strength wastewater with a low rbCOD:P ratio
Journal name Bioresource Technology   Check publisher's open access policy
ISSN 0960-8524
1873-2976
Publication date 2008-03
Sub-type Article (original research)
DOI 10.1016/j.biortech.2007.02.013
Volume 99
Issue 5917
Start page 1236
End page 1241
Total pages 6
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Language eng
Subject 090409 Wastewater Treatment Processes
Formatted abstract
In order to assess the feasibility of enhanced biological phosphorus removal (EBPR) for dairy processing wastewater, which in New Zealand have rbCOD:P ratios that can be as low as 13:1, a sequencing batch reactor treating a synthetic wastewater with a CODVFA of 800 mg/l (representing a dissolved air flotation (DAF) treated, pre-fermented dairy wastewater with a raw COD of 3000 mg/l) was operated at COD:P ratios of 25:1, 15:1 and 10:1. Full (>99%) phosphate removal was achieved for COD:P loadings of 25:1 and 15:1. The trial using 10:1 COD:P loading showed less consistency but still achieved 82% phosphate removal. Based on further analysis of the final trial this study proposes that the minimum COD:P loading for complete phosphate removal is 13:1 indicating that EBPR could indeed be feasible for effective treatment of dairy processing wastewaters. With regard to the type of COD consumed, propionate was found to be favoured over acetate as a substrate. Further research into increasing the propionate content of pre-fermented dairy wastewaters is suggested.
Keyword COD:P
Dairy
EBPR
Enhanced biological phosphorus removal
Wastewater
Q-Index Code C1
Q-Index Status Provisional Code
Additional Notes Available online 27 March 2007

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
 
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Created: Thu, 25 Feb 2010, 14:04:00 EST by Maria Campbell on behalf of Advanced Water Management Centre