| 摘要 |
A process for treating water containing one or more dissolved cation species and/or one or more dissolved anion species is described. The process comprises the steps of: adding a magnesium and/or aluminium containing silicate material in the water and dissolving at least a part of the silicate material in the water thereby leaching at least a part of the magnesium and/or aluminium from the silicate material into the water. The process also comprises controlling reaction conditions for achieving an appropriate Mg:Al ratio in the water for in situ formation of layered double hydroxide containing Mg and Al as predominant species in a lattice of the LDH; wherein at least one of the said dissolved cation and/or anion species is incorporated into the LDH formed in situ. Furthermore, Mg-containing compounds or Al-containing compounds may also be optionally added for achieving the appropriate Mg:Al ratio. |
