Electrochemical removal of phosphate ions from treated wastewater

Or Gorni-Pinkesfeld, Hilla Shemer, David Hasson*, Raphael Semiat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The objective of this work was to investigate electrochemical removal of phosphate from secondary treatment effluent containing calcium and magnesium hardness. Phosphate and hardness removal were carried out using a recently developed technique based on an electrochemical cation exchange membrane system (ECM system). The ECM system overcomes major drawbacks of the current electrochemical technology, notably high electrode area requirements. The parameters investigated were the effects of current density and pH on the phosphate precipitation rate and on the fractional phosphate removal. The effect of presence or absence of phosphate ion on the coprecipitation of calcium carbonate and magnesium hydroxide was also studied. Results indicate the feasibility of viable electrochemical phosphate removal by the convenient ECM technique.

Original languageEnglish
Pages (from-to)13795-13800
Number of pages6
JournalIndustrial & Engineering Chemistry Research
Volume52
Issue number38
DOIs
StatePublished - 25 Sep 2013
Externally publishedYes

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