Novel multimedium filter for water treatment

Abstract

The patent of the invention brings forward a novel multimedium filter for water treatment. The filter comprises a tank, a baffle plate, a water-locator, a filter material layer, an aeration system, a clear water sump and a novel specific backwashing stirring device. The device can be structured in a round, square or other vertical shape. In the meanwhile, a stirring system of the built-in novel specific backwashing stirring device can be used for deep stirring of a filter layer during routine backwashing process of the equipment. Under the action of continuous fiction and repeated stirring by stirring vanes, pollutants on the filter material layer peel off from a filter material. Simultaneously, dropped and separated pollutants are washed away from the inside of the tank by the utilization of a lot of clear water and appropriate compressed air. The unique stirring technology of the device has changed a backward technology of a traditional filter which has defects of unsatisfactory flushing effect, large power consumption and a filter layer which easily undergoes pollution, soil hardening and huddling. The invention is especially applicable to various water purification and sewage treatment fields.

Description

technical field [0001] The patent of the present invention relates to a novel multi-media filter for water treatment. Background technique [0002] At present, the operation and maintenance of traditional filters adopt traditional methods such as backwashing of the filter layer by lifting pumps, and chemical cleaning. However, the backwashing effect of the old process equipment is poor, the consumption of drugs is large, and the filter layer is easy to harden and clumping, which leads to poor operation. The cost increases, the quality of the effluent water is seriously reduced, and the operation is more cumbersome. Although there are also methods such as high-pressure washing and mixed aeration washing, the washing effect and the water quality of the produced water have been greatly improved, but the phenomenon of internal compaction and clumping of the filter material still cannot be fundamentally solved, and the existing process equipment Dosing facilities need to be set ...

AI Technical Summary

Problems solved by technology

[0002] At present, the operation and maintenance of traditional filters adopt traditional methods such as backwashing of the filter layer by lifting pumps, and chemical cleaning. However, the backwashing effect of the old process equipment is poor, the consumption of drugs is large, and the filter layer is easy to harden and clumping, which leads to poor operation. The cost increases, the quality of the effluent water is seriously reduced, and the operation is more cumbersome

Although there are also methods such as high-pressure washing and mixed aeration washing, the washing effect and the water quality of the produced water have been greatly improved, but the phenomenon of internal compaction and clumping of the filter material still cannot be fundamentally solved, and the existing process equipment Dosing facilities need to be set up, and a large amount of chemical agents need to be added during work and cleaning, causing certain environmental pollution, and the pipeline connection between various equipment is complicated, and the operation is inconvenient, which increases the actual investment cost and equipment operation cost

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