External-mounting photocatalytic - biological fluidized bed reactor

A biological fluidized bed and photocatalytic reaction technology, applied in the field of wastewater treatment devices, can solve the problems of easy saturation of the adsorption carrier, low removal rate, easy blockage of membrane pores, etc., to overcome the easy saturation of the carrier, low removal rate, The effect of small mud production

Active Publication Date: 2012-10-03
HOHAI UNIV
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Problems solved by technology

The traditional treatment methods have their disadvantages, such as the anaerobic biological treatment method has a long hydraulic retention time and the removal rate is not high; the advanced oxidation method consumes a lot of chemicals and the treatment cost is high; the photocatalytic method is not completely

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  • External-mounting photocatalytic - biological fluidized bed reactor
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  • External-mounting photocatalytic - biological fluidized bed reactor

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[0021] The present invention will be further described in detail below in conjunction with the drawings.

[0022] Such as Figure 1 to Figure 3 As shown, an external photocatalysis-biological fluidized bed reactor includes a biological fluidized bed. Photocatalytic reaction devices are respectively arranged on both sides of the biological fluidized bed. The biological fluidized bed is the main reactor, which includes the bed The bed body is provided with a downflow zone 1, an upflow zone 2, a three-phase separator 4, a flow guide tube 7, and a triangular overflow weir 8. The three-phase separator 4 is set above the flow guide tube 7, and the triangular overflow The weir 8 is set on the top of the bed; the downflow zone 1 and the upflow zone 2 form the main reaction zone; the water inlet pipe 9 and the inlet pipe 10 are both set at the bottom of the bed body, and the inlet pipe 9 and the inlet pipe 10 are connected, and Both the inlet pipe 9 and the air inlet pipe 10 communicate ...

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Abstract

The invention discloses an external-mounting photocatalytic - biological fluidized bed reactor, which comprises a biological fluidized bed and a photocatalytic reaction device, wherein the photocatalytic reaction device comprises a shell body and an ultraviolet lamp; a photocatalytic reaction area is formed between the shell body and the biological fluidized bed; a valve is arranged between the top of the photocatalytic reaction area and the biological fluidized bed, and the bottom of the photocatalytic reaction area is communicated with the biological fluidized bed; and the ultraviolet lamp is arranged in the photocatalytic reaction area. The biodegradability of wastewater is increased by mainly utilizing photocatalytic reaction, and meanwhile, the refractory printing and dyeing wastewater is treated by utilizing a biological membrane method of the biological fluidized bed. According to the external-mounting photocatalytic - biological fluidized bed reactor, the defects that the traditional printing and dyeing wastewater is difficult to biodegrade and the physical-chemical treatment cost is high are overcome. The external-mounting photocatalytic - biological fluidized bed reactor has a good treatment effect to the refractory industrial wastewater and has a stable quality of effluent water. According to the reuse requirements of different reused water, the load modification of a carrier material can be adjusted to achieve the optimization to the working condition of a reactor. In the whole wastewater treatment process, no secondary pollution exists, and cleaning production is carried out.

Description

technical field [0001] The invention relates to a waste water treatment device, in particular to an external photocatalysis-biological fluidized bed reactor. Background technique [0002] Printing and dyeing wastewater is the most polluting wastewater produced by the textile industry. Its discharge accounts for more than 10% of the total industrial wastewater discharge. It is one of the most important sources of water pollution. The comprehensive treatment of printing and dyeing wastewater is an urgent problem to be solved. [0003] According to different pollutants, printing and dyeing wastewater treatment methods can be roughly divided into three categories: biological method, chemical method and physical chemical method. Due to the complex composition of wastewater, a single treatment method often cannot achieve the ideal treatment effect, so a combination of several methods is used to complete the thorough treatment of printing and dyeing wastewater. [0004] The tradit...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/08C02F1/32C02F103/30
CPCY02W10/10
Inventor 祝建中陈龙冷阳
Owner HOHAI UNIV
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