Camargo Valero, M.A., Johnson, M., Mather, T. and Mara, D.D. (2009) Enhanced phosphorus removal in a waste stabilization pond system with blast furnace slag filters. Desalination and Water Treatment, 4. pp. 122-127.
In this work a tertiary horizontal-flow blast furnace slag (BFS) filter was tested for phosphorus removal under laboratory and field conditions. Laboratory experiments were conducted in a benchscale BFS filter for phosphorus adsorption capacity at equilibrium conditions using P-spiked water. On-site, the performance of a pilot-scale BFS filter was monitored for phosphorus removal from the final effluent of a pilot-scale WSP system located in Esholt (Bradford, UK), which comprises a primary facultative pond and a secondary aerated rock filter (ARF) in series. Adsorption capacity (q) results showed that BFS has high affinity for inorganic P species and it can remove up to 30 g P/kg BFS; however, q values are strongly dependent on the initial P concentration. The pilot-scale BFS filter tested on-site performed better for longer (<2 mg P/L) than the laboratory-scale filter, even though despite the latter received the same hydraulic and P loadings (1.8 m3/m3 d and 18 g P/m3 d, respectively). Both the laboratory and field results showed that BFS filters are an appropriate low-cost technology to upgrading small wastewater treatment systems for phosphorus removal.
|Copyright, Publisher and Additional Information:||© 2009 Camargo Valero, M.A., Johnson, M., Mather, T. and Mara, D.D. Reproduced in accordance with the publisher's self-archiving policy.|
|Keywords:||blast furnace slag filter, domestic wastewater treatment, phosphorus removal, waste stabilization ponds|
|Institution:||The University of Leeds|
|Academic Units:||The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds)
The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds) > Inst for Pathogen Control Engineering (Leeds)
|Depositing User:||Miss Elizabeth Winning|
|Date Deposited:||21 May 2009 10:41|
|Last Modified:||16 Sep 2016 13:47|