dmf shallow media filter

Product description

The dmf shallow media filter is mainly used for the filtration of circulating water, feed water, and wastewater in the industrial field. dmf shallow media filters are excellent at removing particulates and reducing turbidity. If a specific filter material is installed, such as activated carbon, zeolite, etc., the corresponding organic matter, ions, etc. can also be removed by adsorption.

Working principle

Positive washing and filtering state: When the system is in the filtering state, the unfiltered water is evenly distributed through the self-developed water distributor, and the water passes through the packing layer (refined uniform-grained quartz sand/garnet) in the filter in a laminar flow state. When water flows through the packing layer, impurities are trapped within the packing layer. There are a plurality of evenly distributed water collectors at the bottom of the filter, the filtered water is evenly collected and drawn out, and the advective filtration can make the filter filter at a high flow rate, and still achieve a better filtering effect.

Backwash state: As impurities continue to accumulate in the packing layer, the internal head loss will continue to increase. When the head loss of the inlet and outlet water reaches the set value, the system will automatically activate the constant pressure device to switch to the backwashing state. When the backwashing of this unit is completed, the hydraulic valve changes the direction of the water supply to realize the backwashing one by one, which is more convenient Clean up accumulated impurities.

Features

1. Small size, easy installation and space saving. It can be installed outdoors, no need to build a house, saves the cost of civil construction, covers a small area, can be installed indoors and outdoors, or can be installed in layers from top to bottom, with strong adaptability; compact structure, space saving, good anti-corrosion performance, and can be installed indoors and outdoors .

2. The equipment has good anti-corrosion performance and long service life.

3. Large amount of filtration water, good filtration effect, fast filtration flow rate, normal filtration rate can be around 40m/h, according to water quality up to 60m/h; filter backwashing uses product water, and no booster pump and backwash pump are required ; Backwashing lasted 2-3min, backwashing water volume <3m3.

4. Automatic backwashing: The backwashing of the equipment is automatically identified and controlled by the intelligent control system without manual intervention. Even if the suspended matter in the water fluctuates, the equipment may automatically adapt.

5. The water supply is uninterrupted; when the equipment is backwashed, the filtration process is carried out at the same time, and the system supplies water as usual.

Product Details