Manganese sand filter domestic good quality, dense grain, high mechanical strength, chemical activity, not broken, do not dissolve in water natural manganese ore. Washed polished purify, dry magnetic separation, screening, dust and other craft into the sand. Then processed manganese sand blending together at a certain level with. Having a water filter ideal gradation ratio, so that it in a unit volume of the largest specific surface area, the interception capability strongest largest oxidation catalyst, and the smallest backwash wastage rate. Manganese sand filter looks rough brown or light gray, addition to iron, manganese filtration devices commonly used in drinking water, the treatment effect is very good. (Note: MnO2 ≥ 35% both in addition to iron, but also in addition to manganese, MnO2 ≤ 30%) can only be used for groundwater in addition to iron) manganese sand filter is mainly used to reduce the iron in the water ferromanganese and manganese content, according to China's drinking water health standard gauge iron content ≤ 0.3 mg / L manganese content of ≤ 0.1 mg / L, long time excessive iron manganese content of water will seriously affect their health. manganese sand filter uses: natural manganese sand iron removal is a contact catalytic iron removal process, suitable for the the groundwater iron content of less than 20mg / L of iron removal. Natural manganese sand containing high manganese can water bivalent iron oxidized to trivalent iron, have a catalytic active membrane "is formed on the surface at the same time, to further improve the iron removal effect. Iron after water through aeration, only by natural manganese sand a filtering process can be done in addition to iron.