I produced the manganese sand filter is the use of domestic high-quality manganese placer, grain density, high mechanical strength, chemical activity, not broken, do not dissolve in water, natural manganese sand. After washing polishing cleaning, crushing, drying, magnetic election, screening, dust and other processing into sand. then processed by a certain manganese sand graded blending. It has the best water filter grading proportion, it has the largest volume in the unit The specific surface area, the strongest interception capability, the largest and smallest catalytic oxidation backwash churn. The appearance of dark brown, nearly round, the main ingredient is manganese dioxide content of between 35% -45% .
Physical indicators: the density of 2.66g / cm3; crushing rate ≤1.0%; bulk density of 1.85 g / cm3; wear rate ≤1.0%; clay content ≤ 2.5% MnO2 30-40%
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