... materials.Nowadays, The world wide used filter aid, 75%-80% is diatomaceous filter aid chemical. Its characteristic is to liquid pollution ... 0.43%0.45%6.33% Advantages of Kieselguhr Filter aid 1.Good micro porous structure, High adsorption performance and ... and modifying the asphalt to improving pavement performance.2. Filter aid: Chemicals, Industrial oil, Food industry ,Wine industry, Waste-water ...