CN211338942U

CN211338942U - Tubular Fenton fluidized bed sewage treatment plant and system

Info

Publication number: CN211338942U
Application number: CN201922263535.9U
Authority: CN
Inventors: 许玲; 许兴原; 谈政焱
Original assignee: Jiangsu Guochuang Environmental Protection Technology Incubator Co ltd
Current assignee: Jiangsu Guochuang Environmental Protection Technology Incubator Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-25
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a fragrant fluidized bed sewage treatment plant of tubular and system belongs to the sewage treatment field. The device of the utility model comprises a reaction tube, a neutralization tank and a storage tank, wherein the reaction tube is provided with a three-stage reaction section and a chemical dosing device, the reaction section is provided with a catalysis section, and the catalysis section is correspondingly provided with a heater for heating reaction mixed solution flowing through the catalysis section; the catalytic section is also provided with a thermometer for monitoring the temperature of the reaction mixed solution in real time; the water outlet end is provided with a return pipe and a pollutant concentration monitor for detecting the quality of the outlet water; the utility model also provides a fragrant fluidized bed sewage treatment system of tubular, it has used above-mentioned sewage treatment plant, still includes sewage collection pipeline and drainage pipe, and sewage collection pipeline is linked together with the end of intaking, and drainage pipe is linked together with play water end. The utility model discloses a tertiary catalysis, every catalytic unit's temperature is different, and then is showing the catalytic effect who improves the fenton reaction, has strengthened device sewage treatment ability.

Description

Tubular Fenton fluidized bed sewage treatment plant and system

Technical Field

The utility model belongs to the waste water treatment field, more specifically say, relate to a fragrant fluidized bed sewage treatment plant of tubular and system.

Background

Modern industrial wastewater treatment can be divided into three stages: primary treatment, secondary treatment and tertiary treatment. The primary treatment is also called as 'pretreatment', and mainly improves the quality of wastewater by physical and chemical methods to improve the subsequent treatment efficiency; the secondary treatment is 'biological treatment', and the metabolism of microorganisms is utilized to remove colloid or dissolved organic pollutants in water; the third-stage treatment is also called 'advanced treatment', and further treats the effluent of the secondary sedimentation tank after biochemical treatment to improve the quality of the effluent.

The commonly used advanced treatment technologies mainly include chemical coagulation, activated carbon adsorption, membrane separation, ozone oxidation, fenton oxidation and fluidized bed fenton oxidation. The traditional Fenton technology has the engineering technical problems of large sludge output, high medicament dosage, large occupied area and the like.

The utility model discloses a Fenton reactor, the novel nipple rectifier comprises a cylindrical shel, up end one side of barrel is equipped with first medicine pipeline, the first half of barrel is equipped with out the water installation, the barrel middle part is equipped with the catalyst packing layer, the below of catalyst packing layer is equipped with flow state distributor, the lateral wall of barrel is passed to flow state distributor's one end, the below of the lateral wall that flow state distributor passed on the barrel is equipped with the second and adds the medicine pipeline. The utility model discloses a technical scheme who provides beneficial effect who brings is: increases the utilization rate of the medicine and reduces the power consumption. Meanwhile, the flow state distributor has good water distribution effect and does not need additional power. This equipment structure, easy maintenance has reduced the hand labor volume. But the treatment efficiency of the device is still lower, and the engineering operation cost is higher.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

The utility model discloses a for overcoming the not good problem of fenton oxidation treatment effect among the prior art, adopting a crooked tubular fenton fluidized bed that rises, including reaction tube, neutralization tank and holding vessel, the reaction tube is provided with tertiary reaction section and balling iron, and the reaction section is provided with the catalysis section, and this catalysis section correspondence is provided with the heater for the reaction mixed solution of catalysis section is flowed through in the heating. The catalytic section is also provided with a thermometer for monitoring the temperature of the reaction mixed solution in real time. This device is showing extension fenton reaction time, introduces tertiary catalysis simultaneously, and increases catalytic heating device, has improved catalytic efficiency.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model provides a tubular Fenton fluidized bed sewage treatment device, which comprises a reaction tube, a neutralization tank and a storage tank; the reaction tube is provided with a water outlet end, a reaction section and a water inlet end, and the reaction section is arranged between the water outlet end and the water inlet end; the reaction section is sequentially provided with a first-stage reaction section, a second-stage reaction section and a third-stage reaction section at intervals, the first-stage reaction section, the second-stage reaction section and the third-stage reaction section are correspondingly provided with a first catalysis section, a second catalysis section and a third catalysis section, and the outer walls of the first catalysis section, the second catalysis section and the third catalysis section are correspondingly provided with heaters; the water inlet positions of the first catalytic section, the second catalytic section and the third catalytic section are provided with a doser; the neutralization inlet of the neutralization tank and the dosing inlet of the storage tank are sequentially arranged between the water inlet end of the reaction pipe and the reaction section.

Preferably, the reaction section is provided with a horizontal part and a vertical part, the first catalytic section, the second catalytic section and the third catalytic section are arranged on the horizontal part, and the horizontal part and the vertical part are connected through a bending part.

Preferably, the water inlet end of the reaction tube is provided with a preheating section, the preheating section is correspondingly provided with a preheater, and the preheating section is arranged between the first-stage reaction section and the dosing inlet.

Preferably, the length of the heater is greater than the length of the catalytic section.

Preferably, thermometers are arranged at the water inlet positions of the first catalytic section, the second catalytic section and the third catalytic section.

Preferably, a neutralization pump and a neutralization valve are arranged on a neutralization pipeline between the neutralization tank and the neutralization inlet; a dosing pump and a dosing valve are arranged on the dosing pipeline between the storage tank and the dosing inlet.

Preferably, the device also comprises a return pipe, wherein a return inlet of the return pipe is communicated with the water outlet end of the reaction pipe, a return inlet of the return pipe is communicated with the water inlet end of the reaction pipe, and a return outlet of the return pipe is arranged between the dosing inlet of the storage tank and the first catalytic section.

Preferably, the water inlet end of the reaction tube is provided with a bending part and a horizontal part, the backflow outlet of the backflow tube is arranged at the bending part, and the water outlet direction of the backflow outlet is opposite to the water inlet direction of the water inlet end horizontal part.

Preferably, a reflux pump is arranged on the reflux pipe, a reflux valve is arranged between the reflux pump and the reflux inlet, and a pollutant concentration monitor is arranged at the water outlet end of the reaction pipe.

The utility model also provides a fragrant fluidized bed sewage treatment system of tubular, including sewage treatment plant, sewage collecting pipe and drainage pipe, sewage treatment plant is the fragrant fluidized bed sewage treatment plant of a foretell tubular, and sewage collecting pipe is linked together with sewage treatment plant's the end of intaking, and drainage pipe is linked together with sewage treatment plant's play water end.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a fragrant fluidized bed sewage treatment plant of tubular, including reaction tube, neutralization tank and holding vessel, the reaction tube is provided with tertiary reaction section and balling iron, and the reaction section is provided with the catalysis section, and this catalysis section correspondence is provided with the heater for the reaction mixed solution of catalysis section is flowed through in the heating. The pipeline of the device is a reactor, and the use of the pipeline increases the time of Fenton reaction and improves the treatment effect; moreover, this device is showing the catalytic effect who has improved the fenton reaction including tertiary catalysis, and then reinforcing means sewage treatment ability.

(2) The utility model discloses a fragrant fluidized bed sewage treatment plant of tubular, catalysis section still is provided with the thermometer for the temperature of real-time supervision reaction mixed solution. The temperature of each catalytic unit is controlled to be different, so that the catalytic effect is enhanced, and the pollutant removing capability of the device is improved; the device also comprises a return pipe, wherein a return inlet of the return pipe is communicated with a water outlet end of the reaction pipe, and a water outlet direction of the return outlet is opposite to a water inlet direction of a horizontal part of the water inlet end, so that the return liquid and the inlet water can be mixed more fully; the water outlet end of the reaction tube is provided with a pollutant concentration monitor which can detect the quality of water quality at the water outlet end and adjust the reflux ratio according to the quality of the water quality.

(3) The utility model discloses a fragrant fluidized bed sewage treatment system of tubular, it has used above-mentioned sewage treatment plant, still includes sewage collection pipeline and drainage pipe, and sewage collection pipeline is linked together with the end of intaking, and drainage pipe is linked together with play water end. The device has the advantages of easily available material accessories, low investment cost and suitability for popularization and demonstration.

Drawings

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

fig. 2 is a schematic structural diagram of the catalytic section of the present invention.

In the figure: 100. a reaction tube; 110. a water outlet end; 120. a reaction section; 121. a contaminant concentration monitor; 122. a heater; 123. a thermometer; 130. a water inlet end; 131. a bending part; 140. a preheating section; 150. a return pipe; 151. a reflux pump; 152. a reflux valve; 160. a medicine dispensing device; 170. a first-stage reaction section; 171. a first catalytic stage; 180. a second-stage reaction section; 181. a second catalytic stage; 190. a third-stage reaction section; 191. a third catalytic stage; 200. a neutralization tank; 210. a neutralization inlet; 220. a neutralization pump; 230. a neutralization valve; 240. a neutralization line; 300. a storage tank; 310. a dosing inlet; 320. a dosing pump; 330. a dosing valve; 340. a dosing pipeline; 400. a sewage collection pipeline; 500. and (4) a water drainage pipeline.

Detailed Description

The present invention will be further described with reference to the following specific embodiments. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined by the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the present development and significance of the technology and is not intended to limit the scope of the invention or application.

The utility model discloses a fragrant fluidized bed sewage treatment plant of tubular, as shown in figure 1, this device includes reaction tube 100, neutralization tank 200 and holding vessel 300. The reaction tube 100 is provided with a water outlet end 110, a reaction section 120 and a water inlet end 130, the reaction section 120 is disposed between the water outlet end 110 and the water inlet end 130, and sewage flows into the reaction section 120 from the water inlet end 130 and is discharged from the water outlet end 110 after being treated by the reaction section 120. It is worth noting that the water inlet end 130 of the reaction tube 100 may be provided with a preheating section 140, the preheating section 140 is disposed between the first-stage reaction section 170 and the chemical feeding inlet 310, and the preheating section 140 may preheat the inlet water, thereby improving the sewage treatment effect. The water outlet end 110 of the reaction tube 100 is provided with a thermometer contaminant concentration monitor 121 for detecting the quality of water at the water outlet temperature of the water outlet end 110 and adjusting the reflux ratio of the reflux valve 152 according to the quality of water.

The reaction section 120 is sequentially provided with a first-stage reaction section 170, a second-stage reaction section 180 and a third-stage reaction section 190 at intervals, and the first-stage reaction section 170, the second-stage reaction section 180 and the third-stage reaction section 190 are correspondingly provided with a first catalytic section 171, a second catalytic section 181 and a third catalytic section 191. The three-level catalysis can obviously improve the catalysis effect of the Fenton reaction, and further enhance the sewage treatment capacity of the device. The reaction section 120 is provided with a horizontal portion and a vertical portion, the first catalytic section 171, the second catalytic section 181 and the third catalytic section 191 are provided in the horizontal portion, and the horizontal portion and the vertical portion are connected through a bent portion. For example, the primary reaction section 170, the secondary reaction section 180, and the tertiary reaction section 190 are each provided with a horizontal portion and a vertical portion, the first catalytic section 171, the second catalytic section 181, and the third catalytic section 191 are provided at the horizontal portion, and the water outlets of the first catalytic section 171, the second catalytic section 181, and the third catalytic section 191 are communicated with the vertical portion. The heaters 122 are correspondingly arranged on the outer walls of the first catalytic section 171, the second catalytic section 181 and the third catalytic section 191, and the heaters 122 heat the catalytic sections, so that the reaction efficiency of the catalytic sections can be obviously improved. It is worth noting that the length of the heater 122 is greater than the length of the catalytic section, which can produce better heating effect and make the heating more uniform. As shown in fig. 2, a doser 160 and a thermometer 123 are arranged at the water inlet of the first catalytic section 171, the second catalytic section 181 and the third catalytic section 191, the doser 160 is used for dosing hydrogen peroxide into the catalytic section, and the thermometer 123 is used for monitoring the reaction temperature of the catalytic section in real time.

Hydrogen peroxide (H)₂O₂) With Fe²⁺Mixing generates hydroxyl radical OH with strong oxidizing power and initiates more other active oxygen. The active oxygen and the organic macromolecules generate chain reaction, the macromolecules are finally oxidized into carbon dioxide and water, and simultaneously Fe²⁺Can be oxidized into Fe³⁺Has a certain flocculation effect, Fe³⁺Becomes ferric hydroxide to generate a net catching effect, thereby achieving the purpose of treating water. The reaction time and the reaction temperature are also extremely important for the oxidation effect of the fenton reaction. According to the reaction kinetics principle, the reaction speed is accelerated along with the increase of the temperature. However, in the case of a complicated reaction system such as fenton's reagent, not only the forward reaction but also the side reaction is accelerated by the increase in temperature. Therefore, the temperature has a complex effect on the Fenton reagent treatment wastewater, the hydroxyl radicals can be activated at a proper temperature, and the hydrogen peroxide can be decomposed into water and oxygen at an excessively high temperature. The reaction time of the Fenton reaction is prolonged by arranging the multi-stage catalytic unit; the temperature of each catalytic unit is controlled to be different, so that the temperature is controlled in a proper range, the catalytic effect is enhanced, and the pollutant removing capability of the device is improved.

The neutralization tank 200 and the storage tank 300 are provided at the water inlet end 130 of the reaction tube 100, and the neutralization tank 200 and the reaction tube 100 are connected through the neutralization inlet 210 for storing an acid or alkaline solution to adjust the pH of the inlet water. The storage tank 300 and the reaction tube 100 are connected through a medicine-feeding inlet 310. The neutralization inlet 210 of the neutralization tank 200 and the medicine-adding inlet 310 of the storage tank 300 are sequentially arranged between the water inlet end 130 of the reaction tube 100 and the reaction section 120, i.e. the medicine-adding inlet 310 is arranged between the reaction section 120 and the neutralization inlet 210. Storage tank300 for storing Fe containing ferrous ions²⁺The reaction solution of (1). The neutralization pipeline 240 between the neutralization tank 200 and the neutralization inlet 210 is provided with a neutralization pump 220 and a neutralization valve 230, the dosing pipeline 340 between the storage tank 300 and the dosing inlet 310 is provided with a dosing pump 320 and a dosing valve 330, and the dosing pump 320 and the dosing valve 330 are used for controlling the adding flow of the medicine.

The device is further provided with a return pipe 150, the return inlet of the return pipe 150 is communicated with the water outlet end 110 of the reaction tube 100, the return inlet of the return pipe 150 is communicated with the water inlet end 130 of the reaction tube 100, and the return outlet of the return pipe 150 is arranged between the dosing inlet 310 of the storage tank 300 and the catalytic section. The water inlet end 130 of the reaction tube 100 is provided with a bending portion 131 and a horizontal portion, the return outlet of the return tube 150 is arranged at the bending portion 131, and the water outlet direction of the return outlet is opposite to the water inlet direction of the horizontal portion of the water inlet end 130, so that the return water and the inlet water can be fully mixed by the design. A reflux pump 151 is provided to the reflux pipe 150, and a reflux valve 152 is provided between the reflux pump 151 and the reflux inlet.

The utility model discloses still include a sewage treatment system, including above-mentioned sewage treatment plant, sewage collection pipeline 400 and drainage pipe 500, sewage collection pipeline 400 is linked together with sewage treatment plant's the end 130 of intaking, and drainage pipe 500 is linked together with sewage treatment plant's play water end 110.

More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, such as combinations between various embodiments, adapted changes and/or substitutions as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims

1. The utility model provides a tubular fenton fluidized bed sewage treatment plant which characterized in that: comprises a reaction tube (100), a neutralization tank (200) and a storage tank (300); the reaction tube (100) is provided with a water outlet end (110), a reaction section (120) and a water inlet end (130), and the reaction section (120) is arranged between the water outlet end (110) and the water inlet end (130);

the reaction section (120) is sequentially provided with a first-stage reaction section (170), a second-stage reaction section (180) and a third-stage reaction section (190) at intervals, the first-stage reaction section (170), the second-stage reaction section (180) and the third-stage reaction section (190) are correspondingly provided with a first catalysis section (171), a second catalysis section (181) and a third catalysis section (191), and the outer walls of the first catalysis section (171), the second catalysis section (181) and the third catalysis section (191) are correspondingly provided with heaters (122); the water inlet parts of the first catalytic section (171), the second catalytic section (181) and the third catalytic section (191) are provided with a doser (160);

the neutralization inlet (210) of the neutralization tank (200) and the medicine feeding inlet (310) of the storage tank (300) are sequentially arranged between the water inlet end (130) of the reaction tube (100) and the reaction section (120).

2. The tubular Fenton fluidized bed sewage treatment plant according to claim 1, characterized in that: the reaction section (120) is provided with a horizontal part and a vertical part, the first catalytic section (171), the second catalytic section (181) and the third catalytic section (191) are arranged on the horizontal part, and the horizontal part and the vertical part are connected through a bending part.

3. The tubular Fenton fluidized bed sewage treatment plant according to claim 1, characterized in that: the water inlet end (130) of the reaction tube (100) is provided with a preheating section (140), the preheating section (140) is correspondingly provided with a preheater, and the preheating section (140) is arranged between the first-stage reaction section (170) and the dosing inlet (310).

4. The tubular Fenton fluidized bed sewage treatment plant according to claim 1, characterized in that: the heater (122) has a length greater than the length of the catalytic section.

5. The tubular Fenton fluidized bed sewage treatment plant according to claim 1, characterized in that: thermometers (123) are arranged at water inlet positions of the first catalytic section (171), the second catalytic section (181) and the third catalytic section (191).

6. The tubular Fenton fluidized bed sewage treatment plant according to claim 1, characterized in that: a neutralization pump (220) and a neutralization valve (230) are arranged on a neutralization pipeline (240) between the neutralization tank (200) and the neutralization inlet (210); a dosing pump (320) and a dosing valve (330) are arranged on a dosing pipeline (340) between the storage tank (300) and the dosing inlet (310).

7. The tubular Fenton fluidized bed sewage treatment plant according to any one of claims 1 to 6, wherein: the reactor is characterized by further comprising a return pipe (150), wherein a return inlet of the return pipe (150) is communicated with a water outlet end (110) of the reaction pipe (100), a return inlet of the return pipe (150) is communicated with a water inlet end (130) of the reaction pipe (100), and a return outlet of the return pipe (150) is arranged between a dosing inlet (310) of the storage tank (300) and the first catalytic section (171).

8. The tubular Fenton fluidized bed sewage treatment plant according to claim 7, characterized in that: the water inlet end (130) of the reaction tube (100) is provided with a bending part (131) and a horizontal part, the backflow outlet of the backflow tube (150) is arranged on the bending part (131), and the water outlet direction of the backflow outlet is opposite to the water inlet direction of the horizontal part of the water inlet end (130).

9. The tubular Fenton fluidized bed sewage treatment plant according to claim 7, characterized in that: be provided with backwash pump (151) on back flow (150), be provided with between backwash pump (151) and the backward flow import reflux valve (152), water outlet end (110) of reaction tube (100) is provided with pollutant concentration monitor (121).

10. The utility model provides a tubular fenton fluidized bed sewage treatment system which characterized in that: the tubular Fenton fluidized bed sewage treatment device comprises a sewage treatment device, a sewage collecting pipeline (400) and a drainage pipeline (500), wherein the sewage treatment device is the tubular Fenton fluidized bed sewage treatment device as claimed in any one of claims 1 to 9, the sewage collecting pipeline (400) is communicated with the water inlet end (130) of the sewage treatment device, and the drainage pipeline (500) is communicated with the water outlet end (110) of the sewage treatment device.