15 آوریل، 2019

Oxidising iron & manganese& hydrogen sulfide

Ozone generators can oxidise iron, manganese, tannis, sulphides  and other contaminants. Various methods to eliminate iron are recommended but often the client calls for a chemical free solution and this is where ozone can play a role.

Ozone is an extremely strong oxidant which in water treatment is capable of removing all bacteria, virus’s and cysts.

In addition to this it will, at the correct dosage remove iron, manganese, tannin and hydrogen sulphide from water.

Ozone treatment has no effect on salts, chlorides, calcium or the pH of the water and if these problems occur, then the end user will have to call on other service providers specialising in Reverse Osmosis or other products.

After oxidation by ozone there will be oxidised matter suspended in the water which should be filtered or settled out.


 The sulfur bacteria do not cause disease, but their presence in water can cause a bad taste or odor. Since small amounts of hydrogen sulfide can be detected in water by smell and taste, laboratory testing is not needed to detect its presence

The theoretical dose to oxidize ozone to sulfate is 3:1, but in practice the ratio is 4:1. This will leave a small ozone residual in the water, 0.2-0.3 ppm. This residual can be used to ensure that the hydrogen sulfide is fully removed. In the case of variable hydrogen sulfide concentration, following the residual will allow for adjustment in the ozone dosage rate to maintain complete removal of the ozone