Phosphorus recovery from wastewater by struvite crystallization: A review

Le Corre, K. S., Valsami-Jones, E., Hobbs, P. and Parsons, S. A. (2009) Phosphorus recovery from wastewater by struvite crystallization: A review. Critical Reviews in Environmental Science and Technology, 39 6: 433-477. doi:10.1080/10643380701640573


Author Le Corre, K. S.
Valsami-Jones, E.
Hobbs, P.
Parsons, S. A.
Title Phosphorus recovery from wastewater by struvite crystallization: A review
Journal name Critical Reviews in Environmental Science and Technology   Check publisher's open access policy
ISSN 1064-3389
1547-6537
Publication date 2009-01-01
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1080/10643380701640573
Open Access Status DOI
Volume 39
Issue 6
Start page 433
End page 477
Total pages 45
Place of publication Philadelphia, PA, United States
Publisher Taylor & Francis
Language eng
Abstract The present review provides an understanding of principles of struvite crystallization and examines the techniques and processes experimented to date by researchers at laboratory, pilot, and full-scale to maximize phosphorus removal and reuse as struvite from wastewater effluents. Struvite is mainly known as a scale deposit causing concerns to wastewater companies. Indeed, struvite naturally occurs under the specific condition of pH and mixing energy in specific areas of wastewater treatment plants (e.g., pipes, heat exchangers) when concentrations of magnesium, phosphate, and ammonium approach an equimolar ratio 1:1:1. However, thanks to struvite composition and its fertilizing properties, the control of its precipitation could contribute to the reduction of phosphorus levels in effluents while simultaneously generate a valuable by-product. A number of processes such as stirred tank reactors and air-agitated and -fluidized bed reactors have been investigated as possible configurations for struvite recovery. Fluidized bed reactors emerged as one of the promising solutions for removing and recovering phosphorus as struvite. Phosphorus removal can easily reach 70% or more, although the technique still needs improvement with regard to controlling struvite production quality and quantity to become broadly established as a standard treatment for wastewater companies.
Keyword Phosphorus removal
Struvite
Crystallization technologies
Fertilizer
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: ERA 2012 Admin Only
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