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Iron and manganese removal equipment

In addition to being detrimental to people's health, excess iron and manganese in water can also bring great harm to industrial production. For example, in textile, papermaking, printing and dyeing, titanium dioxide and film industries, if water with high iron and manganese content is used as washing water, or added to raw materials in the production process, the white and luster of the product will be reduced, and the color will be affected.

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Iron and manganese removal equipment
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    In addition to being detrimental to people's health, excess iron and manganese in water can also bring great harm to industrial production. For example, in textile, papermaking, printing and dyeing, titanium dioxide and film industries, if water with high iron and manganese content is used as washing water, or added to raw materials in the production process, the white and luster of the product will be reduced, and the color will be affected. It will further affect the operation of production equipment; if the food and brewing industries use water with high iron and manganese content as raw materials, it will seriously affect the color, aroma and taste of the product; in boiler water, iron is one of the components that generate scale and pipe mud; in circulating cooling water, the sediment of iron and manganese will adhere to the heat exchanger and the pipe wall, affecting the heat transfer effect It will also cause iron bacteria to multiply, accelerate the corrosion of metals, and block pipes; in industrial electrolysis water, iron and manganese will deposit on electrodes, reducing their electrical conductivity, etc.

    The process of removing iron and manganese water is as follows: first, the iron and manganese-containing water is oxidized to oxidize iron and manganese into insoluble high-valent iron and manganese, and the reaction formula is

    3MnO2 ++ 2KmnO4 + 2H2O = 5MnO2 + 2K ++ 4H +

    The oxidized water enters the filter layer of the silica-aluminum salt filter material to filter and adsorb to remove iron and manganese. After a period of filtration and adsorption, the filter material can be restored to its original state by backwashing with raw water. The filter material will not harden like manganese sand, and the service life is more than 15 years.

    Our company's special iron, manganese, silicon and aluminum salt filter material has a bulk density of only 1.1 tons/cubic meter. It has the characteristics of strong ion exchange capacity, simple operation, no hardening, no excessive dissolution, and low operating costs. It has a lifespan of up to 15 years. More than. It is currently an effective, economical and safe filter material for iron, manganese and manganese removal. Recycled raw water can be backwashed. The bulk density of manganese sand iron removal filter material is as high as 2.2 tons/cubic meter. It needs to be mixed with compressed air and twice the inlet water flow rate for scrubbing. If backwashing is not complete, it is prone to compaction. When the compaction occurs, manual sand turning is required. The life of manganese sand is very low, and manganese sand with a manganese dioxide content of up to 35% can only be used for 2-3 years, with frequent replacement and high later use costs.

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