Today's environment, the demand for water quality is getting higher and higher, and the application of Shandong multi-media filter is becoming more and more common. Perhaps some people do not understand our multi-media filter. Here is a brief introduction from the small edition of Shandong multi-media filter.
Multimedia filter (filter bed), which uses more than two kinds of media as filter layer, is used in industrial circulating water disposal system to remove impurities, adsorb oil, etc. in order to make the water quality meet the requirements of recycling. The main function of filtration is to remove suspended or colloidal impurities in water, especially small particles and bacteria which can not be removed by sedimentation technology. BODs and COD also have a certain level of removal effect.
Multimedia filter mainly consists of filter body, matching pipelines and valves.
The filter body mainly includes the following components: simplified body; water distribution component; support component; backwash pipe; filter material; exhaust valve (external) and so on.
Selection Basis of Filter Material
(1) Good chemical stability;
(2) It does not contain substances harmful to human health or toxic substances, or substances harmful to consumption or affecting consumption;
(3) The selection of filter material should adopt as much as possible the filter material with adsorptive ability, large pollution interception ability, high water yield and good effluent quality.
(4) Sufficient mechanical strength is necessary to avoid rapid wear and tear during backwashing.
Pebbles play a supporting role in the filter material. In the process of filtration, because of their high strength, stable gap between each other, large pore space, it is easy to wash in the process, and the filtered water passes through smoothly. Similarly, in the process of backwashing, backwashing water and backwashing air can pass through smoothly. In the conventional configuration, the pebbles are divided into four specifications, and the paving method is from bottom to top first big and then small.
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