Natural manganese ore in water.It is washed and removed by washing, crushing, drying, magnetic separation, screening, dust removal and other processes.Then the processed manganese sand is adjusted to a certain level.It has the ideal water treatment filter, grading scale, making it in unit volume, specific surface area of the largest, the most powerful section carrying capacity, the catalytic oxidation of the largest and the smallest backwash turnover.[1] Manganese sand filter material appearance is black brown, nearly circular, main component is manganese dioxide, content is between 35%- 45%.
