CN210367327U

CN210367327U - Catalytic oxidation chemical industry sewage treatment plant

Info

Publication number: CN210367327U
Application number: CN201920549756.XU
Authority: CN
Inventors: 卢方良; 潘瑞峰; 潘瑞芳
Original assignee: Fujian Baijiade Biotechnology Co Ltd
Current assignee: Fujian Baijiade Biotechnology Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-04-21
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a catalytic oxidation chemical industry sewage treatment plant, including equalizing basin, membrane biological reaction pond and catalytic oxidation pond, the equalizing basin loops through pipeline series connection membrane biological reaction pond and catalytic oxidation pond. The utility model discloses an activated sludge and the macromolecule organic matter of aquatic are held back to the biomembrane separator, keep low mud load reduction excess sludge volume, get into the catalytic oxidation pond at last and carry out catalytic treatment, and the bottom surface of filter is equipped with the sponge filter layer, the below of sponge filter layer is equipped with the active carbon filter layer, organic pollutant turns into inorganic micromolecule effectively, reach complete innoxious purpose, catalytic oxidation chemical industry sewage treatment plant that has solved prior art does not pass through the membrane filtration when carrying out photocatalytic treatment, lead to too many suspended solids to get into the catalytic oxidation pond, and photocatalysis needs the transmittance good, some suspended solids and darker colourity all are unfavorable for the seeing through of light, can influence the technical problem of photocatalytic effect.

Description

Catalytic oxidation chemical industry sewage treatment plant

Technical Field

The utility model belongs to the technical field of chemical sewage treatment plant, concretely relates to catalytic oxidation chemical sewage treatment plant.

Background

The chemical method is to remove organic and inorganic impurities in water by utilizing the action of chemical reaction, and mainly comprises a chemical coagulation method, a chemical oxidation method, an electrochemical oxidation method and the like. The chemical coagulation method mainly aims at removing micro suspended matters and colloidal substances in water by destabilizing the colloid to form sediment through coagulation and flocculation generated by adding chemical agents. The coagulation method can remove not only fine suspended particles with the particle size of 1-10 mm in the wastewater, but also chromaticity, microorganisms, organic matters and the like. Photochemical oxidation methods include photoexcited oxidation (e.g. O)₃UV and photocatalytic oxidation (e.g. TiO)₂UV). The light-excited oxidation method mainly uses O₃、H₂O、O₂And air as oxidant, and the photocatalytic oxidation method for generating hydroxyl radical under the action of light radiation is characterized by that a certain quantity of semiconductor catalyst is added in the reaction solution, so that it can produce hydroxyl radical under the irradiation of UV light, and both of them can treat organic pollutant by means of strong oxidation action of hydroxyl radical HO. Catalytic oxidation chemical industry sewage treatment plant of prior art does not pass through membrane filtration when carrying out photocatalytic treatment, leads to too many suspended solids to get into the catalytic oxidation pond, and the photocatalysis needs the transmittance good, and some suspended solids and darker colourity are all unfavorable for the seeing through of light, can influence the photocatalytic effect.

Disclosure of Invention

(1) Technical scheme

In order to overcome the defects of the prior art, the utility model provides a catalytic oxidation chemical wastewater treatment device, which comprises an adjusting tank, a membrane biological reaction tank and a catalytic oxidation tank, wherein the adjusting tank is serially connected with the membrane biological reaction tank and the catalytic oxidation tank through a pipeline, a grid filtering mechanism is fixed at the upper end of the inner side surface of the adjusting tank, a sewage pipe fixed at the top of the grid filtering mechanism is arranged above the grid filtering mechanism, a first overflow pipe communicated with the grid filtering mechanism is arranged on the outer side surface of the grid filtering mechanism, a first conveying pipe is arranged at the bottom of the adjusting tank, the other end of the first conveying pipe extends into the membrane biological reaction tank, the other end of the first conveying pipe is connected with a biological membrane separator, a first water suction pump is also arranged on the first conveying pipe, a second conveying pipe communicated with the biological membrane separator is arranged on the top surface of the biological, a second water pump is arranged on the second delivery pipe, the other end of the second delivery pipe extends into the catalytic oxidation tank, a water discharge pipe is arranged at the bottom of the catalytic oxidation tank, a filter plate is arranged below the inner side surface of the catalytic oxidation tank, the outer ring of the filter plate is provided with a filter opening, the top surface of the filter plate is provided with a photocatalytic oxidation assembly, the photocatalytic oxidation component comprises hollow cylindrical photocatalytic titanium dioxide, an ultraviolet lamp tube, a conduit and an insulating base, the bottom of the photocatalyst titanium dioxide is provided with the insulating base, the top surface of the insulating base is provided with the ultraviolet lamp tubes which are arranged in an annular array, one end of the conduit is fixed on the side surface of the photocatalyst titanium dioxide, the other end of the conduit is fixed on the side surface of the catalytic oxidation pond, and a socket is arranged at the external port of the conduit.

Furthermore, the bottom of the adjusting tank is provided with more than 2 bubbling heads, and each bubbling head is connected in series and then connected with the blower through a bubbling pipe.

Furthermore, a sludge pump is arranged at the bottom of the membrane biological reaction tank, and the sludge pump is connected with a sludge pipe and then extends into the outside of the membrane biological reaction tank.

Furthermore, the bottom surface of the filter plate is provided with a sponge filter layer, and an activated carbon filter layer is arranged below the sponge filter layer.

The utility model discloses a theory of operation: the method comprises the steps of firstly introducing chemical sewage into a grid filtering mechanism in a regulating tank for primary filtering, regulating the pH value of the sewage to be alkalescent, then introducing the sewage into a biomembrane separator to intercept activated sludge and macromolecular organic matters in water, keeping low sludge load and reducing the amount of residual sludge, and finally introducing the sewage into a catalytic oxidation tank for catalytic treatment.

(2) Advantageous effects

The utility model has the advantages that: compared with the prior art, the utility model discloses an activated sludge and the macromolecule organic matter of aquatic are held back to the biomembrane separator, keep low mud load to reduce the excess sludge volume, it carries out catalytic treatment to get into the catalytic oxidation pond at last, and the bottom surface of filter is equipped with the sponge filter layer, the below of sponge filter layer is equipped with the active carbon filter layer, organic pollutant turns into inorganic micromolecule effectively, reach completely innoxious purpose, catalytic oxidation chemical industry sewage treatment plant of having solved prior art does not pass through membrane filtration when carrying out photocatalytic treatment, lead to too many suspended solids to get into the catalytic oxidation pond, and photocatalysis needs the transmittance good, the seeing through of light is all unfavorable for to some suspended solids and darker colourity, can influence the technical problem of photocatalysis effect.

Drawings

FIG. 1 is a schematic structural diagram of a catalytic oxidation chemical wastewater treatment device.

Detailed Description

The present invention will be further described with reference to the following examples.

Example one

Referring to fig. 1, the present embodiment provides a catalytic oxidation chemical wastewater treatment apparatus, including an adjusting tank 1, a membrane biological reaction tank 2, and a catalytic oxidation tank 3, the adjusting tank 1 is serially connected to the membrane biological reaction tank 2 and the catalytic oxidation tank 3 through a pipeline in sequence, a grid filtering mechanism 11 is fixed to an upper end of an inner side surface of the adjusting tank 1, a wastewater pipe 12 fixed to a top of the grid filtering mechanism 11 is disposed above the grid filtering mechanism 11, a first overflow pipe 13 communicated with the outer side surface of the grid filtering mechanism 11 is disposed on the outer side surface of the grid filtering mechanism 11, a first delivery pipe 101 is disposed at a bottom of the adjusting tank 1, another end of the first delivery pipe 101 extends into the membrane biological reaction tank 2, and another end of the first delivery pipe 101 is connected to a biological membrane separator 21, a first water pump 201 is further disposed on the first delivery pipe 101, a second delivery pipe 102 communicated with the biological membrane separator 21 is disposed on a top surface of the, the second delivery pipe 102 is provided with a second water pump 202, the other end of the second delivery pipe 102 extends into the catalytic oxidation pond 3, the bottom of the catalytic oxidation pond 3 is provided with a water discharge pipe 30, a filter plate 31 is arranged below the inner side surface of the catalytic oxidation pond 3, the outer ring of the filter plate 31 is provided with a filter opening 311, the top surface of the filter plate 31 is provided with a photocatalytic oxidation component, the photocatalytic oxidation component comprises a hollow cylindrical photocatalyst titanium dioxide 41, an ultraviolet lamp tube 42, a wire conduit 43 and an insulating base 44, the bottom of the photocatalyst titanium dioxide 41 is provided with the insulating base 44, the top surface of the insulating base 44 is provided with the lamp tubes 42 arranged in an annular array, the side surface of the photocatalyst titanium dioxide 41 fixes one end of the ultraviolet lamp tube 43, the other end of the wire conduit 43 is fixed on the side surface of the catalytic oxidation pond 3, and a socket is provided at an external port of the wire tube 43.

In this embodiment, the bottom of the adjusting tank 1 is provided with more than 2 bubbling heads 51, each bubbling head 51 is connected in series and then connected with an air blower 53 through an air blowing pipe 52, the bottom of the membrane biological reaction tank 2 is provided with a sludge pump 22, the sludge pump 22 is connected with a sludge pipe 23 and then extends into the outside of the membrane biological reaction tank 2, the bottom surface of the filter plate 31 is provided with a sponge filter layer 32, and an activated carbon filter layer 33 is arranged below the sponge filter layer 32. In the embodiment, chemical sewage is firstly introduced into the grid filtering mechanism 11 in the regulating tank 1 for primary filtering, the pH value of the sewage is regulated to be alkalescent, then the sewage enters the biomembrane separator 21 to intercept active sludge and macromolecular organic matters in water, the low sludge load is kept to reduce the residual sludge amount, and finally the sewage enters the catalytic oxidation tank 3 for catalytic treatment.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The catalytic oxidation chemical sewage treatment device comprises an adjusting tank (1), a membrane biological reaction tank (2) and a catalytic oxidation tank (3), wherein the adjusting tank (1) is sequentially connected with the membrane biological reaction tank (2) and the catalytic oxidation tank (3) in series through a pipeline, and is characterized in that a grid filtering mechanism (11) is fixed at the upper end of the inner side surface of the adjusting tank (1), a sewage pipe (12) fixed at the top of the grid filtering mechanism (11) is arranged above the grid filtering mechanism (11), a first overflow pipe (13) communicated with the grid filtering mechanism is arranged on the outer side surface of the grid filtering mechanism (11), a first conveying pipe (101) is arranged at the bottom of the adjusting tank (1), the other end of the first conveying pipe (101) extends into the membrane biological reaction tank (2), and a biological membrane separator (21) is connected with the other end of the first conveying pipe (101), still be equipped with first suction pump (201) on first conveyer pipe (101), the top surface of biomembrane separator (21) is equipped with second conveyer pipe (102) rather than intercommunication, be equipped with second suction pump (202) on second conveyer pipe (102), the other end of second conveyer pipe (102) stretches into the inside of catalytic oxidation pond (3), the bottom of catalytic oxidation pond (3) is equipped with water discharge pipe (30), the medial surface below of catalytic oxidation pond (3) is equipped with filter plate (31), the outer loop play of filter plate (31) is equipped with filtration mouth (311), the top surface of filter plate (31) is equipped with the photocatalytic oxidation subassembly, the photocatalytic oxidation subassembly includes hollow cylinder shape photocatalyst titanium dioxide (41), ultraviolet fluorescent tube (42), wire conduit (43) and insulator seat (44), the bottom of photocatalyst titanium dioxide (41) is equipped with insulator seat (44), the top surface of the insulating seat (44) is provided with the ultraviolet lamp tubes (42) which are arranged in an annular array, one end of the wire conduit (43) is fixed on the side surface of the photocatalyst titanium dioxide (41), the other end of the wire conduit (43) is fixed on the side surface of the catalytic oxidation pond (3), and a socket is arranged at the external port of the wire conduit (43).

2. The catalytic oxidation chemical wastewater treatment device according to claim 1, wherein: the bottom of the regulating reservoir (1) is provided with more than 2 bubbling heads (51), and each bubbling head (51) is connected in series and then connected with a blower (53) through a bubbling pipe (52).

3. The catalytic oxidation chemical wastewater treatment device according to claim 1, wherein: the bottom of the membrane biological reaction tank (2) is provided with a sludge pump (22), and the sludge pump (22) is connected with a sludge pipe (23) and then extends into the outside of the membrane biological reaction tank (2).

4. The catalytic oxidation chemical wastewater treatment device according to claim 1, wherein: the bottom surface of filter (31) is equipped with sponge filter layer (32), the below of sponge filter layer (32) is equipped with activated carbon filter layer (33).