This product is made of fine eremic mud added achoring agent and binder.
After griding,screening, shaping and sintering, we make it. It is a kind of globable pellet,of which the size is uniform, the surface is solid. This product has much merit, such as large sunface area, high void fraction, dammig the impurities very well, the speed of filtering being high. Long working period, water consumption is little during washing back, and there is nothing harmful to the body of man. It will decrease the volume of the disfectant and cloud point, the effect of separating N.H3Pis is over 99%, and that of separating CoDcr is over 40%. This product can improve the effect of filter material instead of quartz sand and anthracite.