Drinking-water treatment sludge (DWTS) is a by-product generated during the production of drinking water where iron hydroxides are the main component of the sludge. The aim of the study presented here was to determine the effectiveness of using ferric sludge from two underground water treatment stations to remove orthophosphates from a model solution. The analyses were performed in static conditions. The sludge was dosed in a dry and suspended form. Using sludge dried at room temperature and preparing the suspension again proved to be much less effective in orthophosphate removal than using a suspension brought directly from the station. An increase in process effectiveness with a decreasing pH was observed for all the analysed sludge. Due to the low cost and high capability, DWTS has the potential to be utilised for cost-effective removal of phosphate from wastewater.
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Research Article|
October 01 2013
Orthophosphate removal from aqueous solutions using drinking-water treatment sludge
Krzysztof Piaskowski
1Division of Water and Sewage Technology, Koszalin University of Technology, Sniadeckich 2, 75-453 Koszalin, Poland
E-mail: [email protected]
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Water Sci Technol (2013) 68 (8): 1757–1762.
Article history
Received:
January 15 2013
Accepted:
April 17 2013
Citation
Krzysztof Piaskowski; Orthophosphate removal from aqueous solutions using drinking-water treatment sludge. Water Sci Technol 1 October 2013; 68 (8): 1757–1762. doi: https://doi.org/10.2166/wst.2013.344
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