Environmental Protection Filter Materials

Environmental Protection Filter Materials This product is made of fine eremic mud added achoring agent and binder. After grinding, 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 surface area, high void fraction, less impurities high speed of filtering, long working period, little water consumption during washing back, and there is innoxious to the man. It will decrease the volume of the disfectant and cloud point, the effect of separating N.H3P 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. The property of environmental protecting filter and quartz sand Specification Unit Environmental protecting filter Quartz sand Bulk density t/m3 051-1.1 1.4-1.6 Void volume % 40-60 16-20 Abrasion ratio % ≤2 ≤3 Hydrochloric acid dissolving ratio % ≤2 ≤2.5 NaOH dissolving ratio % ≤2 ≤2.5 Specific area cm2/g 2.5-7.8x104 015-2.0x103 Ununiformation coefficient Φmm/pellet 1.0-1.3% 20-30% Osmosis coefficient cm/s 2.31-3.63 0.19-2.21 Peak of flow loss of cleaning filter cm/m 10.1-2.21 34