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Three-phase circulating fluidized bed photochemical reactor with a plurality of light sources and Fe/inorganic carrier catalyst preparation and method for processing waste water thereby

A photochemical reactor and circulating fluidized bed technology, applied in chemical instruments and methods, chemical/physical processes, light water/sewage treatment, etc., can solve the problem of low mineralization of organic matter, high cost of iron sludge disposal, and large amounts of iron Waste sludge and other problems, to achieve the effect of high mineralization, simple operation, and easy industrial scale-up

Inactive Publication Date: 2007-07-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the salinity of organic matter is low when the current homogeneous Fenton system treats wastewater, a large amount of iron-containing waste sludge is produced in the reaction process, the disposal cost of iron sludge is high, and it is easy to cause secondary pollution. Provides a multi-light source three-phase circulating fluidized bed photochemical reactor and the preparation of Fe / inorganic carrier catalyst and its method for treating wastewater

Method used

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  • Three-phase circulating fluidized bed photochemical reactor with a plurality of light sources and Fe/inorganic carrier catalyst preparation and method for processing waste water thereby
  • Three-phase circulating fluidized bed photochemical reactor with a plurality of light sources and Fe/inorganic carrier catalyst preparation and method for processing waste water thereby
  • Three-phase circulating fluidized bed photochemical reactor with a plurality of light sources and Fe/inorganic carrier catalyst preparation and method for processing waste water thereby

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specific Embodiment approach 1

[0013] Specific embodiment one: (see Fig. 1, Fig. 2) the overall structure of multi-light source three-phase circulating fluidized bed photochemical reactor of this embodiment is a cuboid, mainly consists of a cylinder body 1, an upper head 2, and an upper head flange 3 , lower head 4, lower head flange 5, water inlet pipe 6 with water inlet valve 21, water outlet pipe 7 with water outlet valve 20, air inlet pipe 8 with air inlet valve 18 and air pump 17, belt The outlet pipe 9 with the outlet valve 19, the porous aeration plate 10, the ultraviolet lamp 11 and the quartz sleeve 12 are composed; The top of the upper head 2 is connected, and the water inlet of the outlet pipe 7 is connected with the upper part of the cylinder body 1. A plurality of quartz sleeves 12 are installed horizontally in the cylinder body 1, and the two end faces of the quartz sleeves 12 are fixedly connected with the cylinder body 1. , the quartz sleeve 12 is equipped with an ultraviolet lamp 11, the lo...

specific Embodiment approach 2

[0014] Specific embodiment two: (referring to Fig. 1) in the multi-light source three-phase circulating fluidized bed photochemical reactor of the present embodiment, have increased deflector 13, enlarged funnel 14 and outlet baffle 15, two end faces of deflector 13 It is fixedly connected with the inner wall of the cylinder body 1, the lower end of the enlarged funnel 15 is fixedly connected with the upper end of the cylinder body 1, the upper head 2 and the enlarged funnel 14 are connected through the upper head flange 3, the two ends of the outlet baffle 15 are connected with the enlarged funnel The inner wall of 14 is fixedly connected. Others are the same as in the first embodiment.

[0015]The structure of the reactor in this embodiment constitutes a multi-light source three-phase internal circulating fluidized bed photocatalytic reaction system. In this embodiment, a downflow zone is formed between the deflector 13 of the reactor and the inner wall of the cylinder 1, a...

specific Embodiment approach 3

[0016] Specific embodiment three: (referring to Fig. 2) in the multi-light source three-phase circulating fluidized bed photochemical reactor of the present embodiment, increased solid phase conveying pipe 16, solid phase conveying pipe 16 is installed on the outside of cylinder body 1, solid phase The upper end of the delivery pipe 16 is fixedly connected with the upper part of the cylinder body 1, and the lower end of the solid phase delivery pipe 16 is fixedly connected with the lower part of the cylinder body; the inlet of the solid phase delivery pipe 16 communicates with the upper part of the cylinder body 1, and the The outlet communicates with the lower part of the cylinder body 1 . Others are the same as in the first embodiment.

[0017] The structure of the reactor in this embodiment constitutes a multi-light source three-phase external circulating fluidized bed photocatalytic reaction system. In this embodiment, an upflow zone is formed between the inner walls of t...

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Abstract

The invention relates to a method for preparing Fe / inorganic carrier catalyst and multi-light-source three-phase circulate fluid bed chemical reactor, wherein it can improve organic mineral degree, reduce ferric waste soil and avoid second pollution; the upper sealing head and cylinder are connected by upper sealing head flange; the cylinder has horizontal several quartz muffles whose ends are connected to the cylinder; the quartz muffles have ultraviolet lamp. The invention ultraviolet radiation, solid catalyst, and oxidant, to generate hydroxyl free group, to decompose and mineralize the organic to treat waste water. The invention has high organic pollutant remove rate, high mineralize degree and simple operation.

Description

technical field [0001] The invention relates to a preparation of a photochemical reactor for treating wastewater and a catalyst and a method for treating wastewater, in particular to the preparation of a multi-light source three-phase circulating fluidized bed photochemical reactor and Fe / inorganic carrier catalyst and its treatment of refractory organic pollution waste water method. Background technique [0002] In recent years, many scholars have done a lot of research on the photo-assisted homogeneous Fenton system to degrade refractory organic pollutants. However, the biggest disadvantage of this system is that the existence of iron ions in the homogeneous system makes the solution colored, and as the pH value increases after the reaction, a large amount of iron-containing waste sludge will be produced during the reaction process, and the disposal cost of iron sludge High, and easy to cause secondary pollution. Meanwhile, the homogeneous Fenton system can only proceed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22B01J19/12C02F1/32
Inventor 尤宏刘婷孙德智
Owner HARBIN INST OF TECH
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