Abstract—In this study, the formation potential of struvite
has been assessed using synthetic centrate mixed with reject
water of a local desalination plant. NH4H2PO4, MgCl2.6H2O,
and NH4Cl were mixed in specific concentrations to simulate
centrate of a wastewater treatment plant coming from
centrifuge of anaerobic digesters. Due to the lack of adequate
magnesium in domestic wastewater, the prepared synthetic
centrate was further mixed with the reject water of MED and
RO units of the desalination plant since it is rich in magnesium
which is required for formation of struvite. Significant removal
of phosphorus was observed through precipitation of
phosphorus compounds after stirring the samples in a batch
reactor.
Index Terms—Magnesium, phosphorus recovery, struvite,
wastewater
Kazi P. Fattah is with the College of Engineering, Department of Civil
Engineering, American University of Sharjah.(e-mail: kfattah@aus.edu)
[PDF]
Cite:Kazi P. Fattah, Sina Shabani, and Aqeel Ahmed, "Use of Desalinated Reject Water as a Source of
Magnesium for Phosphorus Recovery," International Journal of Chemical Engineering and Applications vol. 4, no. 3, pp. 165-168, 2013.
