Description: manganese sand is made of massive manganese ore and natural sand as raw material, processing Filter by crushing. The appearance of rough, brown, natural manganese sand containing MnO2, it is the oxidation of Fe2 + to Fe3 + good catalyst, manganese content of not less than 35% of the natural manganese sand filter (MnO2, the same below), both for the groundwater in addition to iron, but also for groundwater manganese; manganese content of 20% to 30% of the natural manganese sand filter, it should only used for groundwater in addition to iron, manganese content of less than 20% should not be used. Product Details: manganese sand with good and manganese removal function in addition to iron, water supply and drainage industry the best products. Form of manganese as manganese sand filter manganese dioxide-based, users can be noted in the different treatment purposes. Currently, the use of natural MnO2 ore in addition to iron, the principle there are two kinds: one is the role of the so-called membrane, the manganese sand the surface of a layer of strong oxidation. The other is the The manganese ore antiferromagnetic catalytic water catalytic ferrous iron to ferric iron, then ferric kHz attached to the surface of the manganese ore particles thus play a role in addition to the purpose of the iron. Natural manganese dioxide oxidation of the water of divalent iron to trivalent iron to be removed by precipitation, so that the water is clean. Manganese dioxide oxidation of the dissolved oxygen in the water into the a heptavalent manganese oxide. The seven-valent manganese and then water divalent iron is oxidized to ferric iron. Natural manganese sand is a strong oxidizing agent, from the price of iron in water oxidation.