This filter high hardness, wear resistance, resistance, resistance to pressure 23.4KgF, chemical stability, not acid-base dissolved, strong pollutant adsorption capacity and adsorption rate of 27-50%, hydrophilic, anti- Oil, the proportion of g / cm31.25, slightly larger than the water, filling a specific gravity of 0.85g / cm3, easy backwashing and regeneration, compared to other media, it has the advantage of directly before the filter backwash water, low operating costs, backwashing low intensity, (6.71 / S. m2), good filtration rate (24-26 / n) effect. Oilfield water treatment containing not significant effect, removing up to 95% oil, oil drops 5mg / l or less. Common Specifications: 0.5-0.8mm (24-35 mesh) 0.8-1.2mm (16-24 mesh) 1.2-1.6mm (12-16 mesh) 1.6-2mm (10-12 mesh) ITEM Test data test items test oil 90-95% removal backwashing intensity 25m3 / m2.h suspended solids removal 95-98% water flushing pressure 0.32MPa filtration rate 20-25m / h per year in maintenance mode to add a 5-10% share of 1.5g / cm3 bulk density of 0.8 g / cm3