Internal circulation impinging stream biomembrane fluidized bed reactor

Abstract

The invention relates to an internal recycle impinging stream biofilm fluidized bed reactor which is an organic wastewater treatment device integrated with an internal recycle impinging stream absorber and a fluidized bed biofilm reactor and can be applied to different wastewater treatments by the oxidation method of a biofilm. The lower part of the device is the internal recycle impinging stream absorber which is used for strengthening the absorption of oxygen and the upper part is the fluidized bed biofilm reactor which is used for bio-oxidation treatment of wastewater and has the function of purifying the wastewater. The device combines the characteristics of impinging stream transfer enhancement and a long residence time of circulation flow, replaces a traditional bubbling style aeration device with the internal recycle impinging stream absorber at the aeration part, strengthens the absorption process of oxygen and can improve dissolved oxygen content in water and wastewater treatment efficiency; the setting of circular flow is realized mainly based on the difference of the density of fluid at the diverse positions of a baffle and the setting of the inlet flow direction of wastewater, no power plant is added and therefore the device has the advantages of energy saving and high efficiency.

Description

technical field [0001] The invention relates to a reactor in the field of biofilm treatment of organic waste water in environmental engineering, in particular to a novel reactor that combines impact flow and circulation flow in the field of chemical engineering into a fluidized bed biofilm reactor. Background technique [0002] As a technology of water pollution control and water reuse, biofilm reactor has attracted the attention of countries all over the world and has been widely used. So far, the practical biofilm reactor technology used in sewage treatment varies, from traditional biofilters, biological contact oxidation towers and biological turntables to new biofilm fluidized bed reactors and moving bed biofilm reactors. , Sequencing batch biofilm reactor and vertical baffle biofilm reactor, etc., have been applied to varying degrees in engineering practice or are in the active research stage of small test and pilot test. [0003] In the above biofilm sewage treatment ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems existing in the prior art, to provide an internal circulation impingement flow biofilm fluidized bed reactor, and to solve the problem of oxygen in biofilm aeration by using technologies such as impingement flow and circulating flow in the field of chemical engineering. The problem of poor absorption and mass transfer effect

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