Research Article
Removal of Hardness of Earth Alkaline Metals from Aqueous Solutions by Ion Exchange Method
Table 7
Experimental conditions depend on effect of amount of the resin for removal of hardness of calcium and magnesium.
| | pH | Stirring speed
(rpm) | Resin dosage
(g) | Initial hardness of
calcium (FH) | Hardness of calcium in
equilibrium (FH) | Initial hardness of magnesium (FH) | Hardness of magnesium in
equilibrium (FH) |
| | 3 | 115 | 5.0 | 83.75 | 0.00
(60 min) | 124.89 | 96.80
(60 min) | | 3 | 115 | 7.5 | 97.90 | 0.00
(60 min) | 122.50 | 82.25
(60 min) | | 3 | 115 | 10 | 93.40 | 0.00
(60 min) | 119.65 | 33.60
(60 min) |
|
|
