Abstract
A simple easily controlled technique for adding Mg2+ ions to desalinated water is described. The Israeli Health Authority recommendation of adding of 20-30 mg/L of Mg2+ can be readily met by dissolution of magnesia pellets in a packed bed column. Experimental data are presented showing the effects of the specific flow velocity and CO2 acidification of the inlet desalinated water on the Mg2+ concentration in the product stream leaving the column. Acidification of the inlet feed water is shown to enhance considerably the dissolution process. A kinetic expression is presented enabling full design of a dissolution packed column with nonacidified water.
Original language | English |
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Pages (from-to) | 924-929 |
Number of pages | 6 |
Journal | Desalination and Water Treatment |
Volume | 51 |
Issue number | 4-6 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Keywords
- Desalinated water
- Hardening
- Kinetic model
- Magnesia dissolution
- Magnesium