Used as filtration media or layer in single/double layer unit, multi-media equipment, to dispose all kinds of the industrial. Porcelain sand/ ... has the following advantages:1. Big surface area, large voidage, filtration speed for 15-20 m³/h, it can save the ... smoke. it was widely used as filtration media or layer in single /double layer unit, multi-media filtration equipment and ion exchange ware, etc ...