With the worsening of groundwater pollution, groundwater pollution at the source - the "iron waste water" more stringent treatment. The steel wastewater treatment because many pollutants in sewage, and our current processing technology is not perfect, for use in the iron and steel waste water treatment or chemical treatment method manganese sand, chemicals likely to cause secondary pollution, which is wastewater treatment plagued China's steel is a major problem. Since manganese sand filter to remove excessive iron in groundwater, so it can not be the source of the iron and steel wastewater it? Natural manganese sand iron content of iron in addition to groundwater is a contact catalytic iron removal process, suitable for less than 20mg / L of iron. High manganese natural manganese sand containing a can of water oxidation of ferrous iron to ferric iron, while the catalytic surface "active membrane" form, to further enhance the effect of removing iron. After iron water aeration manganese sand technical requirements and only once by natural manganese sand filter, you can complete the entire process in addition to iron. But the content of iron in the steel plant wastewater, far more than the content of iron in groundwater, the current manganese sand iron capacity has not yet reached the purpose of removal, that is, the steel mill wastewater using manganese sand filter is there will not be completely clear effect. Technological breakthrough can only look forward and hope for an early settlement of the steel wastewater pollution of groundwater. Manganese sand iron and manganese removal of water, natural manganese sand filter of hydrochloric acid soluble rate should not exceed 3.5% (percentage by mass, the same below). Iron and manganese in groundwater had almost simultaneously, manganese sand graded according to certain blending. Graded density ratio of manganese sand, manganese sand filter which has the best water filter, it should only be used groundwater in addition to iron. Manganese sand manganese content less than 20% of manganese ore is that it should not be used in the unit volume has the largest surface area, the strongest interception capability, manganese sand largest and smallest catalytic oxidation backwash churn. Especially in China's northern regions and areas rich in iron ore and manganese ore, manganese sand iron content higher proportion of water, the water has iron smell, affect the taste of water, such as a variety of chemical water paper, textile, printing and dyeing, leather Exquisite and other production water. Manganese sand manganese content of 20% to 30% of natural manganese sand filter, it should only be used for groundwater in addition to iron, manganese sand manganese content is less than 20% should not be used. It will seriously affect the quality of products, as drinking water. Manganese sand prices _ _ Song Ankang Xin sand filter manganese manganese sand filter except ferromanganese provided by Gongyi City Song Xin Industrial Co., Ltd. filter. Filter Gongyi City Song Xin Industrial Co., Ltd. (www.sxlc.com) strong, credible, in Zhengzhou, Henan Cleaning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Song Xin filter into the brilliant and you work for a better future!