A variety of different filter media are available, and a reasonable gradation is selected according to different working conditions to maximize the interception capacity of different specific gravity, material and particle size filter layers and the control ability of solid particle size in water. This is close to the ideal distribution method of filter layers and reasonable filter media gradation, achieving the best interception effect. Different specific gravity of filter media can ensure that the filter layer does not mix during backwashing. This product features a compact structure, complete accessories, stable operation, simple operation, thorough backwashing and convenient maintenance. It is applied in the treatment of oily wastewater in oil fields and is also suitable for the advanced treatment of industrial wastewater in other industries such as metallurgy, chemical engineering and textile.
