husk filter is light quality material which we produce by ourselves aiming at oily sewage treatment .it is suitable for water treatment device of the petroleum smelting enterprises.And with the features of high hardness and wear resistance. Since the product has launched onto the market, after the using of environmental protection plants in North China, Henan, the area south of Yellow River, Xinjiang, the victory oil field, Jining Steel Works and Zhenhai , the effect is remarkable. Filter also can be used directly against the former water washing, with the advantages of Low operating costs, easy management and so on. Commonly used specification: 0.5-0.8,0.8-1.2 ,1.2-1.6, 1.6-2.0(mm) Technical parameters: Analysis project Unit Data Analysis project Unit Data Specific Gravity g/cm3 1.25 Packing water % max10 Bulk density g/cm3 0.8 Puffiness rate % max3 Attrition Loss % max1.5 oil content % 0.25 oil removal rate % 90-95 Porosity % 48 removing rate of suspended matter % 95-98 Jetting pressure 0.32 filtration rate m/n 20-25 maintenance mode Supplement per year 5-10% Backwash intensity m3/m2/n 25