CN217498947U

CN217498947U - Fenton reaction device

Info

Publication number: CN217498947U
Application number: CN202220419529.7U
Authority: CN
Inventors: 郭润泽; 付明; 潘亮; 覃文政; 赵云斌; 郭振江
Original assignee: Shenzhen Shuangrui Environmental Energy Technology Co ltd
Current assignee: Shenzhen Shuangrui Environmental Energy Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-27
Anticipated expiration: 2032-02-28

Abstract

The utility model relates to a sewage treatment technical field especially relates to a fenton reaction unit. Fenton reaction unit is applied to industrial waste water treatment field, and it includes: the system comprises a Fenton reaction tank and a wastewater treatment pool communicated with the Fenton reaction tank; the Fenton reaction tank comprises: the device comprises a tank body, a water distribution device for distributing water into the tank body, a filtering device for filtering wastewater, and a medicine conveying device for conveying a reaction medicament into the tank body; through the combination setting of water distribution device and defeated medicine device for the efficiency of fenton's reaction, simultaneously through the utilization ratio that sets up improvement medicament of filter layer, the heterogeneous catalysis on make full use of filler surface reduces ferrous input volume, reduces the production of a large amount of iron mud, has promoted waste water treatment quality and waste water treatment effect.

Description

Fenton reaction device

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a fenton reaction unit.

Background

With the increasing importance of people on ecological environment protection, the discharge standard of industrial wastewater is more and more strict, the indexes of the conventional biological wastewater cannot completely reach the discharge requirement, and the industrial wastewater needs to be deeply treated.

Since the Fenton technology can generate hydroxyl radicals with higher oxidation activity in a homogeneous phase system or a heterogeneous phase system, the Fenton technology is widely applied to the field of organic wastewater. The Fenton reaction is an inorganic chemical reaction and comprises the following steps: the mixed solution of hydrogen peroxide (H2O2) and ferrous ion Fe2+ oxidizes a plurality of known organic compounds such as carboxylic acid, alcohol and ester into inorganic state, the reaction has high capability of removing refractory organic pollutants, and the mixed solution is widely applied to the treatment of printing and dyeing wastewater, oily wastewater, phenol-containing wastewater, coking wastewater, nitrobenzene-containing wastewater, diphenylamine wastewater and other wastewater. At present current fenton reaction unit still has that the medicament adds the volume greatly, the utilization ratio is low, and adaptation pH value scope is narrow, and fenton reaction efficiency is low, and the effluent after the fenton reaction is accomplished still contains a large amount of iron ions to and the unable used problem of recycling of catalyst, cause secondary pollution's not enough, lead to the processing cost of fenton technique higher relatively, restricted the application of fenton technique in the industrial waste water field.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above-mentioned shortcoming, the deficiency of prior art, the utility model provides a fenton reaction device, it has solved the technical problem that current fenton reaction device medicament utilization ratio is low, reaction rate is slow, still be rich in a large amount of ferric ions behind the waste water treatment.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a Fenton reaction apparatus, comprising: the system comprises a Fenton reaction tank and a wastewater treatment pool communicated with the Fenton reaction tank;

the Fenton reaction tank comprises: the device comprises a tank body, a water distribution device for distributing water into the tank body, a filtering device for filtering wastewater, and a medicine conveying device for conveying a reaction medicament into the tank body;

the water distribution device comprises: the water distribution device comprises a water inlet pipe arranged at the bottom of the tank body and a water distribution pipe connected with the water inlet pipe, wherein the water distribution pipe is positioned at the bottom of the tank body;

the drug delivery device comprises: the medicine storage tank is arranged on the outer side of the tank body, the flow pump is used for controlling the medicine administration of the medicine storage tank, the atomizer is used for atomizing the medicine, the air compressor is used for conveying compressed air to the atomizer, and the air distribution pipe is used for conveying the atomized medicine to the tank body; the medicine storage tank is connected with the flow pump, the atomizer, the air compressor and the air distribution pipe through connecting pipes; the air distribution pipe is arranged above the water distribution pipe in the tank body, and a rotating device is further arranged on the outer side of the joint of the air distribution pipe and the tank body.

The filtering device includes: a plurality of filter layers arranged in the tank body; the filter layer includes: a water flow adjusting area, a Fe fluidized bed area and a Cu fluidized bed area;

above the filter layer, the jar body still includes according to the functional area division: the slow flow area used for buffering the floating part of the catalyst and the overflow area used for discharging the treated wastewater are positioned in the overflow area, and the top of the tank body is provided with a water outlet pipe.

The water flow adjusting area comprises lower-layer cobblestones, middle-layer cobblestones and upper-layer cobblestones; quartz sand is filled in the Fe fluidized bed region; and the Cu fluidized bed area is filled with Cu modified activated carbon.

The end part of the air distribution pipe is provided with a plurality of air holes for air distribution, and the air distribution pipe is provided with a check valve.

And a plurality of Y-shaped branch pipes are arranged on the water distribution pipe.

The inlet tube is also connected with a water inlet pump used for conveying waste water to the tank body.

The wastewater treatment tank includes: the neutralizing tank is communicated with the flocculation tank through an overflow port.

The bottom of the flocculation tank is provided with a drain outlet for discharging sediments, and the top of the flocculation tank is provided with a water outlet for discharging wastewater.

The outer side of the tank body is also provided with a circulating pipe, and the circulating pipe is connected with a circulating pump for circulating wastewater.

The bottom of the tank body is also provided with an emptying pipe for emptying wastewater in the tank body.

(III) advantageous effects

The utility model has the advantages that: the utility model provides a fenton reaction device is applied to the industrial wastewater treatment field. Through the combination setting of water distribution device and defeated medicine device for the efficiency of fenton's reaction, simultaneously through the utilization ratio that sets up improvement medicament of filter layer, the heterogeneous catalysis on make full use of filler surface reduces ferrous input volume, reduces the production of a large amount of iron mud, has promoted waste water treatment quality and waste water treatment effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

[ description of reference ]

1: a water inlet pump;

2: a circulation pump;

3: water flow regulating area

4: fluidized bed zone of Fe

5: a Cu fluidized bed zone;

6: a circulation pipe;

7: slow flow area

8: an overflow area;

9: emptying the pipe;

10: a water distributor;

11: gas distribution pipe

12: a rotating device;

13: an air compressor;

14: an atomizer;

15: a medicine storage tank;

16: a water outlet pipe;

17: a neutralization pond;

18: a flocculation tank;

19: a sewage draining outlet;

20: and a water outlet.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The utility model provides a fenton reaction device is applied to the industrial wastewater treatment field. The Fenton reaction device includes: the system comprises a Fenton reaction tank and a wastewater treatment tank, wherein the Fenton reaction tank is communicated with the wastewater treatment tank so that wastewater after treatment in the Fenton reaction tank flows into the wastewater treatment tank to perform secondary wastewater treatment.

The fenton retort includes: the device comprises a tank body, a water distribution device for distributing water to the interior of the tank body, a filtering device for filtering waste water, and a drug delivery device for delivering a reaction medicament to the interior of the tank body.

The water distribution device includes: the water distribution device comprises a water inlet pipe arranged at the bottom of the tank body and a water distribution pipe 10 connected with the water inlet pipe, wherein the water distribution pipe 10 is positioned at the bottom of the tank body, and the water inlet pipe is also connected with a water inlet pump 1 and used for conveying waste water into the tank body.

The water distribution pipe 10 is provided with a plurality of Y-shaped branch pipes which are used for distributing water into the filtering device more uniformly so as to achieve better filtering effect.

The drug delivery device comprises: the medicine storage tank 15 is arranged on the outer side of the tank body, the flow pump is used for controlling the medicine supply of the medicine storage tank 15, the atomizer 14 is used for atomizing the medicine, the air compressor 13 is used for conveying compressed air to the atomizer 14, and the air distribution pipe 11 is used for conveying the atomized medicine to the tank body.

The drug storage tank 15 stores a drug for performing a fenton reaction with wastewater, and the flow pump controls the drug discharge amount. The medicine storage tank 15 is connected with the flow pump, the atomizer 14, the air compressor 13 and the air distribution pipe 11 through connecting pipes.

The air distribution pipe 11 is arranged above the water distribution pipe 10 in the tank body, a plurality of air holes for air distribution are arranged at the end part of the air distribution pipe 11, and a check valve is arranged on the air distribution pipe 11.

The air compressor 13 is started, the check valve is opened, the atomizer 14 atomizes hydrogen peroxide and mixes the hydrogen peroxide with compressed air discharged from the air compressor 13, atomized medicament enters the air distribution pipe 11 through the connecting pipe, hydrogen peroxide is atomized and discharged into waste water from air holes in the air distribution pipe 11, rapid mixing of hydrogen peroxide and the waste water is achieved, and the utilization rate of the hydrogen peroxide is effectively improved.

Preferably, the outer side of the joint of the gas distribution pipe 11 and the tank body is also provided with a rotating device 12, the rotating device 12 drives the gas distribution pipe 11 to rotate for gas distribution, and meanwhile, sewage in the tank body is stirred, so that rapid mixing of hydrogen peroxide and wastewater is accelerated, and the reaction efficiency is improved.

The filtering device comprises: a plurality of filter layers arranged in the tank body. The tank body comprises the following components according to functional area division: a water flow adjusting area 3, a Fe fluidized bed area 4, a Cu fluidized bed area 5, a slow flow area 7 and an overflow area 8. The filter layer includes: a water flow adjusting zone 3, a Fe fluidized bed zone 4 and a Cu fluidized bed zone 5.

The water flow adjusting area 3 comprises lower-layer cobblestones, middle-layer cobblestones and upper-layer cobblestones, the particle size of the lower-layer cobblestones is 10mm, and the filling amount accounts for 3% of the volume of the tank body; the particle diameter of the middle layer cobblestones is 6mm, and the filling amount accounts for 3% of the volume of the tank body; the particle diameter of the upper layer cobblestones is 2mm, and the filling amount accounts for 2% of the volume of the tank body. The Fe fluidized bed zone 4 is filled with quartz sand, and the filling amount accounts for 10% of the volume of the tank body; the Cu fluidized bed zone 5 is filled with Cu modified activated carbon, and the filling amount accounts for 3% of the volume of the tank body; the slow flow region 7 is used for buffering part of the catalyst floating upwards due to the vulcanization effect, so that the floating catalyst is precipitated, and the loss of the catalyst can be effectively avoided.

The utility model discloses regard quartz sand as 4 fillers in Fe fluidized bed district, the modified active carbon of Cu is as 5 catalytic packing in Cu fluidized bed district, on the one hand, the ferric iron major part that produces in the fenton's reaction process can be with crystallization or deposit the cladding on quartz sand surface, utilize the acidity of sewage and simple substance Fe to take place to react and produce ferrous iron, ferrous iron and hydrogen peroxide solution reaction, the catalysis generates hydroxyl free radical, utilize the strong oxidizing power of hydroxyl free radical, get rid of the difficult degradation organic matter in the waste water, utilize the catalytic action of simple substance Cu to accelerate the generation of ferrous iron simultaneously, further promote the improvement of catalytic efficiency; on the other hand, the active carbon can effectively avoid the natural formation of iron crystals in the reaction system and avoid the blockage of a water outlet according to the self friction in the upper fluidization process.

The top of the tank body is provided with a water outlet pipe 16, and the wastewater in the overflow area 8 is discharged into a wastewater treatment tank through the water outlet pipe 16 after being treated.

The waste water treatment pond is used for carrying out secondary neutralization, filtration treatment to the waste water after carrying out the fenton reaction, and the waste water treatment pond includes: a neutralization tank 17 and a flocculation tank 18, wherein a neutralization reagent is added into the neutralization tank 17 to balance the pH value, ferric ions in the wastewater generate precipitates, and the chromaticity of the wastewater is also reduced.

The flocculation tank 18 is communicated with the neutralization tank 17 through an overflow port, a flocculating agent is added into the flocculation tank 18, and ferric ion precipitates become floccules, so that the wastewater can be separated conveniently. The bottom of the flocculation tank 18 is provided with a sewage discharge outlet 19 for discharging the sediments in the flocculation tank 18 periodically. The top of the flocculation tank 18 is provided with a drainage outlet 20 for discharging wastewater meeting the discharge standard.

The outer side of the tank body is also provided with a circulating pipe 6, and the circulating pipe 6 is connected with a circulating pump 2 for circulating wastewater and accelerating the reaction efficiency. The bottom of the tank body is also provided with an emptying pipe 9 for emptying the wastewater in the tank body according to the actual maintenance requirement.

The utility model provides a fenton reaction device is applied to the industrial wastewater treatment field. Through the combination setting of water distribution device and defeated medicine device for the efficiency of fenton's reaction, simultaneously through the utilization ratio that sets up improvement medicament of filter layer, the heterogeneous catalysis on make full use of filler surface reduces ferrous input volume, reduces the production of a large amount of iron mud, has promoted waste water treatment quality and waste water treatment effect.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A Fenton reaction device, characterized in that, the Fenton reaction device includes: the system comprises a Fenton reaction tank and a wastewater treatment pool communicated with the Fenton reaction tank;

the Fenton reaction tank comprises: the device comprises a tank body, a water distribution device for distributing water into the tank body, a filtering device for filtering waste water and a drug delivery device for delivering a reaction medicament into the tank body;

the water distribution device comprises: the water distribution device comprises a water inlet pipe arranged at the bottom of the tank body and a water distribution pipe (10) connected with the water inlet pipe, wherein the water distribution pipe (10) is positioned at the bottom of the tank body;

the drug delivery device comprises: the medicine storage tank (15) is arranged on the outer side of the tank body, the flow pump is used for controlling the medicine feeding of the medicine storage tank (15), the atomizer (14) is used for atomizing the medicine, the air compressor (13) is used for conveying compressed air to the atomizer (14), and the air distribution pipe (11) is used for conveying the atomized medicine into the tank body; the medicine storage tank (15) is connected with the flow pump, the atomizer (14), the air compressor (13) and the air distribution pipe (11) through connecting pipes; the air distribution pipe (11) is arranged above the water distribution pipe (10) in the tank body, and a rotating device (12) is further arranged on the outer side of the joint of the air distribution pipe (11) and the tank body.

2. A fenton reaction apparatus according to claim 1, wherein: the filtering device includes: a plurality of filter layers arranged in the tank body; the filter layer includes: a water flow adjusting area (3), a Fe fluidized bed area (4) and a Cu fluidized bed area (5);

above the filter layer, the jar body still includes according to functional area division: a slow flow area (7) for buffering the floating part of the catalyst and an overflow area (8) for discharging the treated wastewater, wherein the slow flow area (7) is positioned in the overflow area (8), and the top of the tank body is provided with a water outlet pipe (16).

3. A fenton reaction apparatus according to claim 2, wherein: the water flow adjusting area (3) comprises lower-layer cobblestones, middle-layer cobblestones and upper-layer cobblestones; quartz sand is filled in the Fe fluidized bed region (4); and the Cu fluidized bed area (5) is filled with Cu modified activated carbon.

4. A fenton reaction apparatus according to claim 1, wherein: the end part of the air distribution pipe (11) is provided with a plurality of air holes for air distribution, and the air distribution pipe (11) is provided with a check valve.

5. A fenton reaction apparatus according to claim 1, wherein: and a plurality of Y-shaped branch pipes are arranged on the water distribution pipe (10).

6. A fenton reaction apparatus according to claim 1, wherein: the water inlet pipe is also connected with a water inlet pump (1) used for conveying waste water into the tank body.

7. A fenton reaction apparatus according to claim 1, wherein: the wastewater treatment tank includes: a neutralization pond (17) and a flocculation pond (18), wherein the neutralization pond (17) is communicated with the flocculation pond (18) through an overflow port.

8. A Fenton's reaction device according to claim 7, wherein: the bottom of the flocculation tank (18) is provided with a sewage discharge outlet (19) for discharging sediments, and the top of the flocculation tank (18) is provided with a water discharge outlet (20) for discharging wastewater.

9. A fenton reaction apparatus according to claim 1, wherein: the outer side of the tank body is also provided with a circulating pipe (6), and the circulating pipe (6) is connected with a circulating pump (2) for circulating wastewater.

10. A fenton reaction apparatus according to claim 1, wherein: the bottom of the tank body is also provided with an emptying pipe (9) for emptying the wastewater in the tank body.