Research on Biology Ceramsite´s Preparation and Performance with Tungsten Tailings

The study on Tungsten tailings, slag, pulverized coal ash, clay and so on, prepares one porous living thing ceramists through the method of roasting. Determines its physics performance parameter through the modern technology method is: Granule density 1.5~2.5 g/cm³. stack density 0.65~1.3 g/cm³, compared to surface area 7.2~13.5 m²/g, the acid may dissolve rate <0.3%, the alkali may dissolve rate <0.5%, the tube presses intensity 6.5~9.1 MPa, the water-absorptivity 0.2%. Research shows: The bio-ceramic membrane linked to the speed and micro-organisms attached to large, aging biofilm off easy, easy backwashing.