Water glass as a promising agent for the removal of Cr and P from drinking water

Abstract

The paper deals with the possibilities of innovation in water treatment. Attention is focused on the possibilities of using water glass in removing heavy metals and nutrients in water treatment. The partial results are presented from the research, which deals with the removal of chromium and phosphorus from water. A conventional coagulant (aluminium sulfate) was used as a comparison. To verify the effectiveness of these chemicals a series of laboratory experiments was conducted in order to determine the appropriate dosage and working procedure to remove a selected group of pollutants. During the laboratory tests the overall efficiency of removing selected pollutants (chromium and phosphorus) and also turbidity were monitored using liquid aluminium sulfate and water glass. The process of removing mentioned compounds from water was simulated under laboratory conditions. The laboratory experiments carried out on the model water which contained increased concentrations of chromium and phosphorus showed the capability of water glass to remove these pollutants from water. During the research, the dependence between pollutants removal and dose was investigated to achieve the best efficiency using innovative means.

Příspěvek se zabývá možnostmi inovace v odpadních vod. Pozornost je zaměřena na možnosti využití vodního skla v odstraňování těžkých kovů a živin při úpravě vody.