Abstract
The work considers the issues of intensification of the process of purification of natural waters from compounds of bivalent iron, namely the stage of its oxidation. In the experiments, corundum-based ceramic membranes with a deposited layer of aluminum oxide and the same membranes, but modified with layered double hydroxide (LDH) based on the trivalent iron ion, were used as the aerator material. Experiments were carried out to compare the aeration modes for both types of membranes; an aquarium aerator was taken as a comparison. The contribution of the selective layer with LDH to the oxidation rate of bivalent iron by atmospheric oxygen is shown, which confirms its catalytic activity. The process flow diagram of the aerator is proposed.
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