Continuous cleaning multifunctional reactor

Abstract

The invention relates to a continuous cleaning multifunctional reactor, in particular to a bioreactor applied to wastewater treatment. The invention provides the multifunctional reactor which is used for extracting sands and cleaning by using pressure water, aiming at overcoming the defects of a common denitrification device and a nitrating device. The continuous cleaning multifunctional reactor is characterized by comprising a tank body, a sand extracting device, a sand extracting pipe, a water distributing pipe, a gas distributing pipe, a backwater distributing pipe and a sand washer. When the nitrating device and the denitrification device run, a filter material expands at a critical fluidization state, filter material particles mutually rub and collide, the thickness of a biological membrane generated by microbes attached to the filter material is limited in a certain range, and the filter material positioned at the bottom layer of the filter material layer is conveyed to the sandwasher to be stripped and cleaned, and then the filter material is scattered on the upper surface of the filter material layer. The biological membrane generated by the microbes attached to the filter material is continuously updated to ensure the high efficiency running of the continuous cleaning multifunctional reactor.

Description

technical field [0001] The invention relates to a continuous cleaning multifunctional reactor, which relates to a bioreactor applied to sewage treatment, in particular to a continuous cleaning multifunctional reactor. Background technique [0002] In water treatment equipment, there are sand filters that use the principle of deep filtration to remove suspended solids in water, and bioreactors that use microorganisms to remove organic matter in water. The sand filter is filled with filter material, which is a medium for deep filtration. The bioreactor is filled with fillers, which are used to attach microorganisms. Some filter materials can be used as fillers, such as quartz sand, activated carbon and fly ash ceramsite. The bioreactor is divided into anaerobic denitrifier and aerobic nitrifier according to the likes and dislikes of microorganisms to oxygen. Sand filters, denitrifiers and nitrifiers have one thing in common, that is, the filter material needs to be backwash...

AI Technical Summary

Problems solved by technology

Its shortcoming is that it cannot control the proportion of the inhaled filter material in the sand extraction water at first.

If the ratio is too high, the sand lifting pipe will be blocked, especially after the operation is stopped, the filter material remaining in the sand lifting pipe will cause trouble for the next start-up

Secondly, the oxygen in the compressed air will accelerate the dissolution in the water, and the dissolved oxygen in the water will inhibit the reproduction of anaerobic microorganisms, thereby reducing the treatment efficiency of the anaerobic denitrifier

Again, the cleaning efficiency of the bellows type sand washer is low

Finally, the height of the fixed filter bed is limited, and the number and concentration of microorganisms contained in the denitrifier and nitrifier are limited, which is the root cause of the large area occupied by the denitrifier and nitrifier

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