Abstract
In the presented paper the sorption properties of natural sorbents were studied. Quartz sand, activated carbon with a fraction of 0.3 mm and zeolite with a fraction of 0.75 mm were selected. Experiments were carried out in laboratory conditions, filtration was carried out through each of the presented sorbents, then chemical analysis was performed for residual concentration of chemical impurities in wastewater. There was also a comparison when filtering through each sorbent and cascade. The best result is filtering by cascade method, where the sorption of chemical impurities was more than 90%, which is a satisfactory result for compliance with sanitary norms.
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