Preparation method of activated carbon-based ferromanganese oxide film for catalytic oxidation of NH4<+>, and activated carbon-based ferromanganese oxide film and deamination application thereof

Abstract

The invention relates to the technical field of sewage treatment, in particular to a preparation method of an activated carbon-based ferromanganese oxide film for catalytic oxidation of NH4<+>, and the activated carbon-based ferromanganese oxide film and deamination application thereof. The preparation method comprises the following preparation steps: preparing a manganese sulfate solution, putting activated carbon into the manganese sulfate solution, carrying out soaking, and then performing draining to obtain manganese sulfate-loaded activated carbon; preparing a potassium permanganate solution, putting the activated carbon loaded with manganese sulfate into the potassium permanganate solution, and successively conducting soaking and draining to obtain activated carbon-based birnessite;and preparing a mixed solution of manganese sulfate and ferrous sulfate, carrying out air aeration on the mixed solution, putting the activated carbon-based birnessite into an organic glass adsorptioncolumn, and circularly pumping the aerated mixed solution into an organic glass adsorption column to obtain the activated carbon-based ferromanganese oxide film. The activated carbon-based ferromanganese oxide film can catalytically oxidize NH4<+> at normal temperature to obtain a clean product, namely nitrogen; and preparation process is simple and quick, cost is low, and industrial amplification is facilitated.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a catalytic oxidation NH 4 + The preparation method of the activated carbon-based ferromanganese oxide film, the activated carbon-based ferromanganese oxide film and its deamination application. Background technique [0002] For the ammonia nitrogen catalytic oxidation treatment of the actual municipal water polluted by low concentration ammonia nitrogen, the methods currently used are photocatalytic method and wet catalytic oxidation method. Photocatalytic oxidation technology is to produce highly oxidizing hydroxyl radicals under the combined action of photosensitive semiconductor material catalysts and light radiation, which undergo oxidation reactions with ammonia nitrogen to oxidize them into nitrogen. Photocatalytic oxidation is a clean treatment method, which has the advantages of good selectivity, mild reaction conditions, and not limited by the concentration o...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of catalytic oxidation NH 4 + The preparation method of activated carbon-based ferromanganese oxide film, the application of activated carbon-based ferromanganese oxide film and deamination, by catalytic oxidation of NH 4 + The preparation method of the activated carbon-based ferromanganese oxide film is prepared to obtain the activated carbon-based ferromanganese oxide film to solve the problem of low utilization rate of light energy encountered in the prior art using photocatalytic degradation of ammonia nitrogen, and the solution needs to adjust the pH to be strongly alkaline, or use Wet catalytic oxidation method, catalytic oxidation of ammonia nitrogen needs to be strictly adjusted at high pressure and technical problems

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