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 language | English |
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Pages (from-to) | 951-955 |
Number of pages | 5 |
Journal | Fresenius Environmental Bulletin |
Volume | 13 |
Issue number | 10 |
Publication status | Published - 2004 |
Keywords
- Ammonia removal
- Dilution ratio
- Leather tanning wastewater
- Magnesium ammonium phosphate precipitation
- Seawater