Material introduction:
Features:
1. The product uses specially processed walnut shells as the filter medium, which has strong adsorption capacity, and the filter material can be backwashed and regenerated, with strong compression resistance (23.4kgf/cm2), stable chemical properties and high hardness.
2. Good abrasion resistance, long-term use does not require replacement, strong adsorption and dirt interception capacity (absorption rate 25-53%), good hydrophilicity, and oil resistance.
3. Directly use the pre-filtering water backwash, without the use of air source and chemical agents, low operating cost, and according to the water quality requirements, adopt single-stage or two-stage series use.
Model Description:
Filter material name Quartz sand Walnut shell
Filtration effect Oil-water removal rate (%) 40-50 82-93
Suspended matter removal rate (%) 50-65 85-96
Filtration speed (m/h) 8-12 25-30
Backwash intensity (l/s.m2) 16 6-7
Filter material maintenance method Replace every 2-3 years, supplement 10% every year
It is suitable for the treatment of oily sewage in oil fields and various other industries.