Magnesium ammonium phosphate precipitation using seawater

Işik Kabdaşli*, Aytuǧ Demirdilek, Tuǧba Ölmez, Okay Tünay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this study, application of seawater as a magnesium source to magnesium ammonium phosphate (MAP) precipitation was experimentally investigated using synthetic samples containing initial concentration of 100 mgN L-1 NH4Cland leather tanning wastewater. The dilution ratio was defined and found to be a main parameter determining the costs of the process as well as the extent of interference caused by seawater composition. While the increase in ionic strength and alkalinity had a slight effect on the MAP precipitation, introduction of calcium ions through the use of seawater proved to have an adverse effect on the process. The use of seawater as a magnesium source yielded a similar ammonia removal performance as the application of MgCl2 to both synthetic samples and leather tanning wastewater.

Original languageEnglish
Pages (from-to)951-955
Number of pages5
JournalFresenius Environmental Bulletin
Volume13
Issue number10
Publication statusPublished - 2004

Keywords

  • Ammonia removal
  • Dilution ratio
  • Leather tanning wastewater
  • Magnesium ammonium phosphate precipitation
  • Seawater

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