What is a filter bed?

The filter bed is a material such as sand that is used to remove certain materials, including oils or solids, from liquid flows. They are commonly used to clean industrial waste water flows and can be installed as residential septic systems. Filter technology is most often a system of fed gravity, where liquids enter at the top and move down to the drain located on the base.

Industrial filter technology can use various materials such as filter media, including sand, porous country or carbon beads. The filter efficiency depends on several factors, including the surface surface of the filter medium. The surface area means the overall surface of the filter medium, which is the total area of ​​all particles or beads used for the bed. The media are carefully designed to provide large surface areas without being too small, which could lead to connection.

stay of stay or how long the liquid remains in bed can be important for filter sysTaps that eliminate chemicals from industrial processes. The liquid layout should even be over the upper part of the bed, and the bed itself should be on the level to prevent the fluid from running on one side of the whole area. The bed should be freely packed to allow the free movement of the liquid; The tightly wrapped bed has less surface surfaces and can clog faster.

Filter beds can be operated continuously as it can occur in the industrial process or can work in a dose or intermittent application. An example of batch filtration is a filter bed used to process home waste water. As water flows from home, first enters the septic tank where the solids are separated. The liquid leaving this tank often goes into the pumping tank, which is a smaller concrete tank with a submerged pump located on the bottom.

When a floating switch indicates that the pump tank is filled, the blackThe and empty contents were activated in the sand bed. This bed is often built above the ground and contains layers of sand and gravel, with drain pipes located on the bottom and spraying or distribution pipes located at the top. The pumped water passes through the distribution pipe, where it is sprayed or drips on the sand bed.

Sand filter beds are useful for waste water, as not only more solids are separated, but bacteria and air present in bed can help divide any solid waste that enters the septic tank. The drainage system collects water at the bottom and is usually sent to an underground distribution field where water can enter the ground. Sand filters require occasional sand replacement, as they are filled with solids, but these systems can provide years of reliable services.

Another type of filter bed is the bed filter filter. These systems can be designed in two ways; Liquid can be pumped from the bottom of the filter to raise and disrupt the bed, and the airCH or other gas can be bubbled to the bottom of the filter tank to get the media angry. Fluidized systems are designed primarily for chemical filtration, where a high surface area is required to extract contaminants or chemicals from liquid current. They are not effective for solid substances filtering, as the effect of agitation would prevent the filter from capturing the solid material.