CN214115034U

CN214115034U - Fenton reaction device for sewage treatment

Info

Publication number: CN214115034U
Application number: CN202022929607.1U
Authority: CN
Inventors: 顾亚军; 许春洋; 赵磊; 陆子琪
Original assignee: Zhangjiagang Qingyuan Water Treatment Co ltd
Current assignee: Zhangjiagang Qingyuan Water Treatment Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-09-03
Anticipated expiration: 2030-12-07

Abstract

The utility model relates to a sewage treatment field especially relates to a fragrant reaction unit for sewage treatment, and the device can effectively solve the big and difficult problem of transportation of jar body area, and the device includes vertical jar of body, jar body one side is equipped with the sewage admission pipe, and the sewage admission pipe stretches into jar body and tip is equipped with horizontal criss-cross branch pipe of intaking including, and the one end of the branch pipe of intaking is linked together with the outlet end of sewage admission pipe, the outer tip of other triplexs of the branch pipe of intaking seals, and the same side of other triplexs is axial fixity respectively and is equipped with a plurality of faucet, and the play water direction of faucet is whole to be the heliciform, jar body below left and right sides is equipped with ferrous sulfate filling opening and sulphuric acid filling opening respectively, and jar body middle part is equipped with the hydrogen peroxide solution filling opening, and jar body upper portion one side is equipped with the outlet. The operation is simple, the use is convenient, and the device is suitable for various places.

Description

Fenton reaction device for sewage treatment

Technical Field

The utility model relates to a sewage treatment field specifically is a method of sewage treatment with fenton reaction unit and with this reaction unit treatment sewage.

Background

Fenton (Fenton) oxidation is used as an advanced oxidation technology and is widely applied to the field of environmental management. The Fenton oxidation process is characterized in that under an acidic condition, ferrous iron and hydrogen peroxide are added to react to generate hydroxyl radicals, and organic matters are degraded through strong oxidizing property of the hydroxyl radicals. The Fenton oxidation process can effectively degrade refractory organic matters such as aromatic hydrocarbons, benzene rings, phenols, pesticides and the like. Compared with other advanced oxidation technologies, Fenton oxidation has the advantages of simple operation process, high reaction speed, simple and convenient equipment, low cost and the like, can be carried out at normal temperature and normal pressure, and has simple operation and wide application range.

201721112579.6 discloses a Fenton oxidation treatment device, which generally comprises three tanks, wherein the first tank is added with sulfuric acid, the second reaction tank is added with ferrous sulfate, the second reaction tank is added with hydrogen peroxide, and each tank is provided with a stirring device for stirring. Then the sewage to be treated sequentially passes through the first reaction tank, the second reaction tank and the third reaction tank to be reacted. And the fenton retort of this kind of structure needs three jar of bodies, pipe connection between the jar body, and area is great, especially to some emergent sewage treatment plant of needs, foretell fenton retort is because of the volume is great, and on emergent sewage treatment, bulky, the transportation is difficult, and emergent scene place is hardly had the position and can be placed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a sewage treatment is with fenton reaction unit, the device can effectively solve the big and difficult problem of transportation of jar body area.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fenton reaction unit for sewage treatment, includes vertical jar of body, jar body one side is equipped with the sewage admission pipe, and the sewage admission pipe stretches into jar body and tip is equipped with horizontal criss-cross inlet branch pipe including, and the one end of inlet branch pipe is linked together with the outlet end of sewage admission pipe, the outer tip of other triplexes of inlet branch pipe seals, and the same side of other triplexes is axial fixity respectively and is equipped with a plurality of faucet, and the play water direction of faucet is whole to be the heliciform, jar body below left and right sides is equipped with ferrous sulfate filling opening and sulphuric acid filling opening respectively, and jar body middle part is equipped with the hydrogen peroxide filling opening, and jar body upper portion one side is equipped with the outlet.

Preferably, the nozzles are each downwardly inclined.

Preferably, the water outlet nozzle is inclined downwards by an angle of 3-5 degrees.

Preferably, the upper middle part of the tank body is provided with a backflow mechanism, the backflow mechanism comprises a vertical backflow pipe arranged on the outer side of the tank body, and the backflow pipe is provided with a backflow circulating pump.

Preferably, a plurality of annular baffles are fixed on the inner wall of the tank body at the upper side of the sewage inlet pipe at intervals from top to bottom.

Preferably, the inner ends of the baffles are respectively inclined upward.

Preferably, a first control valve is arranged on the water outlet, a second control valve is arranged on the hydrogen peroxide filling opening, a third control valve and a fourth control valve are respectively arranged on the ferrous sulfate filling opening and the sulfuric acid filling opening, and a fifth control valve is arranged on the backflow pipe on the upper side of the backflow circulating pump.

Preferably, the hydrogen peroxide filling opening is positioned between the two baffles.

In addition, the utility model also provides a sewage treatment method, and the treatment method adopts above-mentioned fenton reaction device, and its step includes:

s1, introducing sewage into a tank body through a sewage inlet pipe;

s2, spraying sewage through a water outlet nozzle by a water inlet branch pipe, and enabling the liquid inside to be in a vortex shape;

s3, respectively adding sulfuric acid and ferrous sulfate solution from the bottoms of a sulfuric acid liquid adding port and a ferrous sulfate liquid adding port;

s4, adding hydrogen peroxide into the tank body from a hydrogen peroxide adding opening;

s5, the liquid of the vortex rotates downwards and then flows upwards gradually to contact with hydrogen peroxide to carry out Fenton reaction;

s6, refluxing the sewage at the upper part of the tank body to the middle part of the tank body by using a reflux circulating pump.

And S7, discharging the sewage from the water outlet.

Preferably, two layers of annular baffles are arranged in the tank body to divide the tank body into an upper area, a middle area and a lower area, and the water outlet direction of the water outlet nozzle is inclined downwards; sewage, ferrous sulfate solution and sulfuric acid are added from the lower area; hydrogen peroxide is added from the middle area between the two layers of annular baffles; the return circulation pump returns the sewage in the upper area to the lower area.

Compared with the prior art, the utility model provides a sewage treatment is with fenton reaction unit and method possesses following beneficial effect:

1. the utility model discloses a jar body is handled sewage, has effectively reduced the volume of jar body, reduces area, does benefit to the transportation and lays with the scene.

2. The utility model discloses a water outlet direction of the apopore of the water inlet lateral becomes the heliciform, makes inside liquid become the vortex form like this to increase the stirring, make the reaction more abundant.

3. The utility model discloses a faucet incline down to not only produce the swirl of spiral, but also can strike downwards, improved stirring effect, need not to increase mechanical stirring like this.

4. The utility model discloses a setting of sulphuric acid filling opening and ferrous sulfate filling opening and having set up the hydrogen peroxide solution filling opening at the middle part of the jar body, the liquid of swirl upwards flows gradually after the downrotation and contacts with hydrogen peroxide solution like this, then discharges from the outlet on upper portion to the in-process that liquid from bottom to top flows accomplishes the fenton reaction, thereby handles sewage.

5. The utility model discloses a set up the backward flow circulating pump on the upper portion of the jar body and middle part to extension reaction time makes the fenton reaction more abundant.

6. The utility model discloses a set up annular baffle at the inner wall of the jar body, divided certain region with the jar body, can carry out different stage reactions in the region of difference like this, the reaction in each stage is more abundant.

In summary, the fenton reaction device is adopted and used for sewage treatment, so that treatment of some emergency pollution products can be facilitated, for example, in some chemical fields or in situations such as leakage of chemical transport vehicles, the fenton reaction device can be rapidly moved to the field for treatment, and the blank of emergency treatment of the sewage on the field at present is made up.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a top view of the water inlet branch pipe and the tank body;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

The following are marked in the figure: 1. a tank body; 2. sewage enters the pipe; 3. water inlet branch pipes; 31. a water outlet nozzle; 4. a sulfuric acid filling port; 41. a fourth control valve; 5. ferrous sulfate filling port; 51. a third control valve; 6. a hydrogen peroxide filling port; 61. a second control valve; 7. a reflux mechanism; 71. a return pipe; 72. a reflux circulation pump; 73. a fifth control valve; 8. a water outlet; 81. a first control valve; 9. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, a fenton reaction device for sewage treatment comprises a vertical tank body 1, wherein a sewage inlet pipe 2 is arranged on one side of the tank body 1, the sewage inlet pipe 2 extends into the tank body 1, a horizontal cross-shaped water inlet branch pipe 3 is arranged at the inner end part of the tank body 1, one end of the water inlet branch pipe 3 is communicated with the water outlet end of the sewage inlet pipe 2, the outer end parts of other three parts of the water inlet branch pipe 3 are closed, a plurality of water outlet nozzles 31 are respectively and fixedly arranged on the same side surfaces of the other three parts in an axial direction, and the water outlet direction of the water outlet nozzles 31 is integrally spiral, so that the liquid inside the water outlet pipes are in a vortex shape, the stirring is increased, and the reaction is more sufficient. The tank body 1 is equipped with ferrous sulfate filling opening 5 and sulphuric acid filling opening 4 respectively in the below left and right sides (making the pH value 2-3), and tank body 1 middle part is equipped with hydrogen peroxide solution filling opening 6, and tank body 1 upper portion one side is equipped with outlet 8, and the liquid of swirl upwards flows gradually after downwards rotating and contacts with hydrogen peroxide solution like this, then discharges from outlet 8 on upper portion to the in-process completion fenton reaction that liquid flowed from bottom to top, thereby handles sewage. The water outlet nozzles 31 are respectively inclined downwards, and the downward inclination angle of the water outlet nozzles is 3-5 degrees, so that spiral vortexes are generated, downward impact is also generated, the stirring effect is improved, and mechanical stirring is not needed.

In the above embodiment, specifically, the middle upper portion of the tank 1 is provided with the backflow mechanism 7, the backflow mechanism 7 includes a backflow pipe 71 (upper and lower end portions of which are respectively communicated with the inside of the tank) which is vertically arranged outside the tank 1, and the backflow pipe 71 is provided with a backflow circulating pump 72. The reaction time is prolonged, so that the Fenton reaction is more sufficient.

In the above embodiment, specifically, a plurality of annular baffles 9 are fixed on the inner wall of the tank body 1 at the upper side of the sewage inlet pipe 2 at intervals from top to bottom, and the inner ends of the baffles 9 are respectively inclined upwards. Thus, the tank body 1 is divided into certain areas, so that different stages of reactions can be carried out in different areas, the reactions in all stages are more sufficient, and the reaction is required for 45min when the COD concentration is reduced by 100 ml/L.

In the above embodiment, more specifically, the water outlet 8 is provided with the first control valve 81, and the hydrogen peroxide solution adding port 6 is provided with the second control valve 61. And the ferrous sulfate filling port 5 and the sulfuric acid filling port 4 are respectively provided with a third control valve 51 and a fourth control valve 41. A fifth control valve 73 is arranged on the return pipe 71 at the upper side of the return circulating pump 72.

The utility model also provides a method for adopt above-mentioned fenton reaction unit to handle sewage, its step includes: s1, introducing sewage into a tank body 1 through a sewage inlet pipe 2; s2, the water inlet branch pipe 3 sprays the sewage through the water outlet nozzle 31, the liquid in the water outlet nozzle 31 is in a vortex shape, the inclined structure of the water outlet nozzle 31 can impact downwards, and the stirring effect is improved; s3, adding sulfuric acid and ferrous sulfate solution into the sulfuric acid liquid adding port 4 and the ferrous sulfate liquid adding port 5 at the bottom respectively; s4, adding hydrogen peroxide into the tank body 1 through a hydrogen peroxide adding opening 6, wherein the vortex liquid rotates downwards and then flows upwards gradually to be contacted with the hydrogen peroxide, and then is discharged from a water outlet 8 at the upper part, so that the Fenton reaction is completed in the process that the liquid flows from bottom to top, and sewage is treated; s5, the liquid of the vortex rotates downwards, then gradually flows upwards to be contacted with hydrogen peroxide, and then is discharged from a water outlet at the upper part; s6, the reflux circulating pump 72 can prolong the reaction time, so that the Fenton reaction is more sufficient; s7, the tank body 1 is divided into certain areas by the annular baffle 9, so that different stages of reactions can be carried out in different areas, the reactions in all stages are more sufficient, and the reaction is required for 45min every time the COD concentration of 100ml/L is reduced.

The components used in the present invention are all common standard components or components known to those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Fenton reaction unit for sewage treatment, its characterized in that: including the vertical jar of body, jar body one side is equipped with the sewage admission pipe, and the sewage admission pipe stretches into jar body and tip is equipped with horizontal criss-cross branch pipe of intaking including, and the one end of the branch pipe of intaking is linked together with the delivery end of sewage admission pipe, the outer tip of other triplexs of the branch pipe of intaking seals, and same side difference axial fixity of other triplexs is equipped with a plurality of faucet, and the whole heliciform that is of the play water direction of faucet, jar body below left and right sides is equipped with ferrous sulfate filling opening and sulphuric acid filling opening respectively, and jar body middle part is equipped with the hydrogen peroxide solution filling opening, and jar body upper portion one side is equipped with the outlet.

2. A fenton reaction device for sewage treatment according to claim 1, characterized in that: the water outlets are respectively inclined downwards.

3. A fenton reaction device for sewage treatment according to claim 2, characterized in that: the downward deflection angle of the water outlet nozzle is 3-5 degrees.

4. A fenton reaction device for sewage treatment according to claim 3, characterized in that: the upper portion is equipped with the backward flow mechanism in the jar body, and the backward flow mechanism is equipped with the backward flow circulating pump including locating the vertical back flow in jar external side on the back flow.

5. A Fenton's reaction device for sewage treatment according to claim 4, wherein: a plurality of annular baffles are fixed on the inner wall of the tank body at the upper side of the sewage inlet pipe at intervals from top to bottom.

6. A Fenton's reaction device for sewage treatment according to claim 5, wherein: the inner ends of the baffles are respectively inclined upwards.

7. A fenton reaction device for sewage treatment according to claim 6, characterized in that: the water outlet is provided with a first control valve, the hydrogen peroxide adding opening is provided with a second control valve, the ferrous sulfate adding opening and the sulfuric acid adding opening are respectively provided with a third control valve and a fourth control valve, and the backflow pipe on the upper side of the backflow circulating pump is provided with a fifth control valve.

8. A fenton reaction device for sewage treatment according to claim 7, characterized in that: the hydrogen peroxide filling opening is positioned between the two baffles.