Process for the removal of as (V) from contaminated water and its use as a precursor in the manufacture of materials fotocalu00edticos assets

摘要

Process for the removal of as (V) from contaminated water and its use as a precursor in the manufacture of materials fotocalu00edticos active technology consists in the process for the purification of water contamiSwim with the (V) and the reuse of the (V) as a precursor for the manufacture of photocatalytic material which can be applied in the processes of environmental remediation of aqueous systems contamiNeonatal with organic or inorganic pollutants.The process can be understood in three steps: (I) the (V) present in aqueous systems is adsorbed on the surface of contaminated or oxidru00f3xidos oxides of iron.Subsequently, the adsorbent containing the (V) is separated from the aqueous solution, by magnetic attraction, centrifugation or filtration.Producing water without the (V); (II) the adsorbent containing the (V) is subjected to treatment with the solution extractor "" in order to remove the (V) of the adsorbent to the solution.The adsorbent can be recovered and stored for later use in further cycles of adsorption.(III) the resulting solution containing the (V) dessorvido is subjected to treatment with a solution collecting "B". After treatment, a solid compound of reddish brown color is formed.The suspension is centrifuged and the resulting solid on the basis of the (V) is washed several times with distilled water and dried at room temperature.The material formed has high activity fotocatalu00edtica being applicable in the environmental decontamination of aqueous systems.