Backwash water is cleaned by a certain intensity, so remove impurities in the filter layer for the purpose of cleaning method. For manganese sand filter manganese sand for manganese oxide conversion method, backwash cleaning is a very important step, it can remove impurities in manganese sand filter formed during filtration, manganese sand filter to restore and clean. It is not longer the backwash of time, the effect of cleaning the greater good? The answer is no. The results show that manganese sand filter backwash shortest of five minutes, the longest no more than 10 minutes, also the backwash time is not too long a cube 1.8 tons of manganese sand, which is why? Manganese sand filter counter rinsing time is based on what determines it? We all know that in addition to iron and manganese sand filter relies mainly two reasons, one is iron manganese sand filter manganese dioxide and water react, one is the so-called the role of the membrane. This layer can remove iron sulfide active membrane structure is loose, if the backwash time is too long, then it is easy to destroy in the long rinse, so filter backwash should not destroy the activity on the membrane filter surface for the degree, preferably 5-10 minutes time. Otherwise, not only from the purpose of the backwash manganese sand density is the number, but also reduce the effect of removing iron and manganese sand filter, and finally affect the water quality, water quality caused a serious deterioration after filtration. Because the active filter will have a more serious consequences after being destroyed - reducing effect of removing iron and manganese sand filter, affecting water quality. Therefore, manganese sand filter backwash time without damaging the surface of the active manganese sand filter membrane as standards by the decision. Natural manganese sand filter is a war catalytic iron iron technology, the right to openly water iron content of less than 20mg / L of iron. Low natural manganese manganese sand containing a can of water oxidation of ferrous iron to ferric iron, while constituting catalytic role in the appearance of "active membrane" to further improve the iron results. Manganese sand for water in addition to iron and openly natural manganese and manganese sand filter, which should be based on the shape of manganese oxide, manganese-based. It recommended supporting layer disposed on the tube resistance water distribution systems and grid-type or orifice plate Xu little resistance to water distribution systems. After iron water aeration, only once by the natural manganese sand filter, you will be able to complete a full course of iron. Should take precedence Britain at the end of production using proven scientific experiments or can get excellent addition to iron and manganese in addition to the type of natural manganese sand filter for the results. Manganese content (with MnO2 dollars, the same below) manganese sand filter should not be less than 35% of natural manganese sand filter, the water can be used openly in addition to iron, and manganese can be used openly water; manganese content of 20% 30% of natural manganese sand filter, it should only be used openly water in addition to iron; manganese content of less than 20% of manganese ore is not used. No cause of the filter after the severe deterioration of water quality, groundwater iron removal filter, it should be easy to use for the iron clogging water distribution system in the form. Dongli District manganese sand, manganese sand manganese oxide conversion method, Song Xin natural manganese sand (certified merchants) are provided by Gongyi City Song Xin Industrial Co., Ltd. filter. Filter Gongyi City Song Xin Industrial Co., Ltd. (www.sxlc.com) is specialized in "manganese sand filter, honeycomb inclined tube, filter head, filter cap, activated alumina, activated carbon," the business, companies adhering to the "integrity management, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Han.