What does arsenic removal mean in practice?
As(III) usually must first be oxidized to the more easily adsorbed form As(V) and then bound on an iron medium or removed by membrane.
When does it matter?
Phosphates, silica, pH and arsenic form strongly influence the reservoir capacity and breakthrough moment.
Which solutions are related to it?
Speciation is performed or a safe process variant is adopted, the medium is selected based on tests, and arsenic behind the filter is regularly tested.