NIHON GENRYO
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SWS


MST



Manganese Sand

Manganese SandSand will naturally become manganese sand and come to have the capacity to remove manganese as it filters water containing manganese to which chlorine is added. However, it might take a few months to a few years for sand to become manganese sand depending on the concentration of manganese. Our manganese sand is produced by repeatedly treating carefully selected filter sand with manganese chloride and potassium permanganate and then stabilizing the sand by artificially attaching a coat that causes contact oxidation (MnO2EH2O) to the surface of the sand. The produced sand exerts an excellent demanganization effect at the initial stage of passage of water under the condition where chlorine exists.

Characteristic
1)
If manganese is contained in raw water, anthracite exerts the demanganization effect.
2)
If the required concentration of free chlorine is detected in raw water, MnO2 H2O (manganese dioxide hydrate) that is produced through oxidization of manganese in raw water coats the surface of manganese sand, and it becomes the same as manganese sand. Therefore, the contact oxidation capacity (demanganization capacity) of manganese sand is maintained.
3)
The amount of manganese contained in our product is 0.3mg/g or more.
4)
Manganese sand can be used for demanganiation in a high-speed filtration system


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