CN220665030U - Sequencing batch Fenton oxidation method water treatment test device - Google Patents
Sequencing batch Fenton oxidation method water treatment test device Download PDFInfo
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- CN220665030U CN220665030U CN202322169934.5U CN202322169934U CN220665030U CN 220665030 U CN220665030 U CN 220665030U CN 202322169934 U CN202322169934 U CN 202322169934U CN 220665030 U CN220665030 U CN 220665030U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 49
- 230000003647 oxidation Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 94
- 239000003814 drug Substances 0.000 claims abstract description 37
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 238000005273 aeration Methods 0.000 claims abstract description 31
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 42
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000005070 sampling Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 239000003513 alkali Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 11
- 229940079593 drug Drugs 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000012028 Fenton's reagent Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000009303 advanced oxidation process reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- MGZTXXNFBIUONY-UHFFFAOYSA-N hydrogen peroxide;iron(2+);sulfuric acid Chemical compound [Fe+2].OO.OS(O)(=O)=O MGZTXXNFBIUONY-UHFFFAOYSA-N 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to the technical field of sewage treatment, and provides a sequencing batch Fenton oxidation method water treatment test device, which comprises a constant temperature mechanism, a reaction mechanism, a medicine feeding mechanism and an aeration sludge discharging mechanism; the reaction mechanism is arranged in the constant temperature mechanism and is used for carrying out reaction treatment on the wastewater, and the constant temperature mechanism is used for carrying out heat preservation treatment on the reaction mechanism; the medicine feeding mechanism is connected with the reaction mechanism and is used for detecting and adjusting the pH value of the wastewater in the reaction mechanism; the aeration mud discharging mechanism is arranged at the bottom of the reaction mechanism. The sequencing batch Fenton oxidation method water treatment test device has the function of constant temperature and pH, avoids the large influence of temperature and pH when the Fenton oxidation is used for treating wastewater, ensures long-time normal working and running, and improves the oxidation efficiency.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a sequencing batch Fenton oxidation method water treatment device.
Background
For advanced treatment of refractory organic matters in industrial wastewater, a common method is an advanced oxidation technology. Advanced oxidation technologies (Advanced Oxidation Processes, AOPs) are a class of sewage and wastewater treatment technologies which generate hydroxyl radicals (OH) with strong oxidability by a physicochemical method and degrade refractory organic matters into small molecules and even mineralization. OH has extremely high oxidation potential of 2.8eV, has oxidation capability which is inferior to that of fluorine, can react with organic matters in wastewater in a non-selective way, destroys the original structure of the wastewater to degrade or mineralize the wastewater, and can treat refractory molecules such as pesticides, dyes and the like. The advanced oxidation technology commonly used in engineering comprises Fenton method, ozone oxidation method, wet oxidation method, photocatalysis method, electron beam method, etc., and compared with other advanced oxidation technology, fenton method is widely applied due to the advantages of simple operation, rapid reaction, flocculation generation, etc.
Fenton (Fenton) reaction was found in 1894 and refers to Fe in the reaction system 2+ And H 2 O 2 A class of reactions that react to form OH. Fe is generally used in conventional homogeneous Fenton reaction 2+ As an iron source catalyst, fe under acidic conditions 2+ Can be cycled through a plurality of oxidation states. After a series of reactions, the target pollutant and OH are dehydrogenated or oxidized and removed by other reaction paths. The series of reactions have the advantages of high speed, no toxicity, high efficiency, low investment and operation cost, etc. The Fenton oxidation method comprises the following main process flows: the above processes are usually performed in structures connected in series in sequence, respectively, for acid conditioning, catalysis and mixing, oxidation reaction, neutralization, and solid-liquid separation. Before the Fenton unit design work of the sewage plant, a test is often needed to determine the treatment effect of Fenton on unit water inflow and estimate the dosage. The test is generally similar to the actual engineering, but the operation of each reaction flow is complex, the error is large and the water sample waste is serious by connecting a plurality of reaction devices in series. In Fenton oxidation organic wastewater experiments, temperature and pH are the most dominant influencing factors.
Disclosure of Invention
Based on the expression, the utility model provides a sequencing batch Fenton oxidation water treatment test device, which aims to solve the problems of unstable pH and large day and night temperature deviation of the traditional sequencing batch Fenton oxidation water treatment test device.
The technical scheme for solving the technical problems is as follows: a sequencing batch Fenton oxidation water treatment device comprises a constant temperature mechanism, a reaction mechanism, a medicine feeding mechanism and an aeration sludge discharging mechanism;
the reaction mechanism is arranged in the constant temperature mechanism and is used for carrying out reaction treatment on the wastewater, and the constant temperature mechanism is used for carrying out heat preservation treatment on the reaction mechanism;
the medicine feeding mechanism is connected with the reaction mechanism and is used for detecting and adjusting the pH value of the wastewater in the reaction mechanism;
the aeration mud discharging mechanism is arranged at the bottom of the reaction mechanism.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the reaction mechanism comprises a reaction tank, a stirring motor and stirring paddles;
the reaction tank is used for containing the wastewater;
the stirring paddle is arranged in the reaction tank along the vertical direction;
the stirring motor is connected with the stirring paddle, and the stirring paddle can stir the wastewater in the reaction tank under the driving of the stirring motor.
Further, the reaction mechanism also comprises a sample inlet pipe;
the top of the reaction tank is provided with a sample inlet, and the sample inlet pipe is connected with the sample inlet.
Further, the sequencing batch Fenton oxidation water treatment device also comprises a sampling tube;
the sampling tube is connected to the tank body of the reaction tank.
Further, the sampling tubes are multiple;
the sampling pipes are distributed at intervals along the vertical direction.
Further, the constant temperature mechanism comprises a water tank, a constant temperature water outlet pipe and a constant temperature water inlet pipe;
the water tank is arranged around the reaction tank and is used for bearing heat-insulating water;
the constant temperature water outlet pipe and the constant temperature water inlet pipe are connected with the reaction tank.
Further, the medicine feeding mechanism comprises a pH detector, a medicine storage box and a controller;
the pH detector is inserted into the reaction tank and is used for detecting the pH value of the wastewater in the reaction tank;
the controller is used for adjusting the dosing type and the dosing amount of the medicine storage box according to the pH value detected by the pH detector.
Further, the medicine storage box comprises an acid liquid dispenser and an alkali liquid dispenser;
the acid liquor dispenser and the alkali liquor dispenser are respectively connected with the reaction tank through pipelines and valves.
Further, the pH detector comprises a pH monitoring electrode and a pH meter;
the pH monitoring electrode is embedded in the reaction tank and is used for monitoring the pH value of the wastewater in the reaction tank;
the pH meter is connected with the pH monitoring electrode, and is used for displaying the pH value monitored by the pH monitoring electrode and feeding back the pH value to the controller.
Further, the aeration and sludge discharge mechanism comprises an aeration disc, a sludge discharge and ventilation valve, an air inlet pipe and a sludge discharge pipe;
the aeration disc is arranged at the bottom of the reaction tank;
the air inlet pipe and the mud discharging pipe are connected with the aeration disc, and the mud discharging pipe is coaxially sleeved on the outer side of the air inlet pipe;
the mud discharging and ventilating valve is arranged on the air inlet pipe and the mud discharging pipe and is used for controlling the connection and the closing of the air discharging pipe and the mud discharging pipe.
The sequencing batch Fenton oxidation water treatment test device provided by the utility model is provided with a constant temperature mechanism, a reaction mechanism, a medicine feeding mechanism and an aeration sludge discharge mechanism, is a sequencing batch reactor with functions of constant temperature and constant pH, electric medicine feeding, variable frequency stirring and aeration sludge discharge, can perform a Fenton oxidation wastewater treatment test, meets the requirement of design work on a water sample test, is convenient to operate, and has small water sample requirement.
Compared with the prior art, the sequencing batch Fenton oxidation method water treatment test device has the following beneficial technical effects:
(1) The automatic accurate addition of the acid and alkali and the Fenton reagent can be realized by the real-time pH monitoring and medicine feeding mechanism, so that the Fenton reaction is stabilized in a proper pH range, and the effect of Fenton oxidation of organic wastewater is promoted;
(2) The integrated design greatly reduces the occupied area, and the stirring device and the aeration and sludge discharge mechanism can meet the requirements of each flow of wastewater treatment;
(3) The device is provided with a constant temperature mechanism, so that the effect of Fenton reaction treatment is prevented from being greatly influenced by low temperature or high temperature at day and night.
Drawings
FIG. 1 is a schematic diagram of a sequencing batch Fenton oxidation water treatment device according to an embodiment of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram illustrating the operation of the sludge discharge vent valve 42a in a sludge discharge mode according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram illustrating the operation of the sludge discharge and aeration valve 42b in an aeration mode according to an embodiment of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a constant temperature mechanism; 11. a water tank; 12. a constant temperature water outlet pipe; 13. a constant temperature water inlet pipe;
2. a reaction mechanism; 21. a sample inlet tube; 22. a reaction tank; 23. a stirring motor; 24. stirring the slurry; 25. a sampling tube; 26. a sample inlet;
3. a medicine feeding mechanism; 31. a pH detector; 311. a pH detection electrode; 312. a pH meter; 32. a medicine storage box; 321. an acid liquid dispenser; 322. an alkali lye dispenser; 33. a controller;
4. an aeration mud discharging mechanism; 41. an aeration disc; 42. a mud discharging ventilation valve; 43. an air inlet pipe; 44. a mud pipe.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The embodiment of the utility model provides a sequencing batch Fenton oxidation method water treatment device, which is shown in figures 1 and 2 and comprises a constant temperature mechanism 1, a reaction mechanism 2, a medicine feeding mechanism 3 and an aeration and sludge discharge mechanism 4; the reaction mechanism 2 is arranged in the constant temperature mechanism 1, the reaction mechanism 2 is used for carrying out reaction treatment on wastewater, and the constant temperature mechanism 1 is used for carrying out heat preservation treatment on the reaction mechanism; the medicine feeding mechanism 3 is connected with the reaction mechanism 2, and the medicine feeding mechanism 3 is used for detecting and adjusting the pH value of the wastewater in the reaction mechanism 2; the aeration mud discharging mechanism 4 is arranged at the bottom of the reaction mechanism. Therefore, fenton reaction can be realized under the constant-temperature and constant-pH condition, the orderly batch operation of the experimental device is ensured, the floor area is greatly reduced at the same time due to the integrated structure, and the labor cost is reduced by the intelligent pH detection and electric medicine feeding system.
Further, as shown in fig. 1, the reaction mechanism 2 includes a sample tube 21, a reaction tank 22, a stirring motor 23, and a stirring paddle 24; as shown in fig. 2, a sample inlet 26 is arranged at the top of the reaction tank, and the sample inlet tube 21 is connected to the sample inlet 26; the reaction tank 22 is used for containing wastewater; the stirring paddle 24 is arranged in the reaction tank along the vertical direction; the stirring motor 23 is connected with the stirring paddle 24, and the stirring paddle 24 can stir the wastewater in the reaction tank under the driving of the stirring motor 23.
Specifically, according to the Fenton oxidation reaction flow, a certain amount of wastewater to be treated is injected into the reaction tank 22 through the sample inlet pipe 21 for Fenton oxidation test, and the stirring motor 23 and the stirring slurry 24 are arranged, so that different wastewater can be treated under different stirring conditions. In an alternative example, the variable frequency setting of the stirring motor 23 is used for controlling the stirring speed, the setting of the stirring motor 23 is used for setting a rapid stirring paddle 24 to be in a multi-rod shape so as to accelerate the mixing of materials of the muddy water Fenton reagent, and the setting of the stirring motor 23 is used for setting a slow stirring paddle 24 to be in a square shape so as to avoid damaging the aggregation state of the sludge. In this embodiment, the rapid stirring may be performed for 2-3min, then for 2-3min, and finally, the stirring may be stopped to achieve rapid precipitation of the iron mud.
Further, as shown in fig. 1, the sequencing batch Fenton oxidation water treatment device further comprises a sampling tube 25, wherein the sampling tube 25 is connected to the tank body of the reaction tank 22; the sampling tube 25 may be plural, and the plural sampling tubes 25 are arranged at regular intervals in the vertical direction on the reaction tank 22. In a specific example, as shown in fig. 1, the number of sampling tubes 25 may be 3, and in actual operation, other numbers may be set according to actual needs, and the specific number is not limited.
Specifically, after the water sample is taken out through the sampling tube 25, the water sample can be sent to a laboratory for laboratory test and monitoring related indexes, so that personnel can monitor the reaction condition of the wastewater in the reaction tank 22 at any time, and the arrangement of a plurality of sampling tubes 25 from top to bottom can enable the personnel to monitor the wastewater treatment condition of different water levels, so that the three sampling tubes 25 can be arranged up, down in the reaction tank 22 in consideration of simple and economic conditions.
Further, as shown in fig. 1, the constant temperature mechanism 1 includes a water tank 11, a constant temperature water outlet pipe 12, and a constant temperature water inlet pipe 13; the water tank 11 is arranged around the reaction tank 22, and the water tank 11 is used for bearing heat-insulating water; the constant temperature water outlet pipe 12 and the constant temperature water inlet pipe 13 are connected with the reaction tank 22.
Specifically, constant temperature water flows out from the external constant temperature water bath, enters the water tank 11 through the constant temperature water inlet pipe 13, and is discharged to the constant temperature water bath through the constant temperature water outlet pipe 12, so that the circulating water bath is realized. In the Fenton reaction, the temperature is an important factor influencing the effect, the temperature is continuously increased, the Fenton reaction speed is gradually increased, along with the increase of the temperature, the generation speed of OH is increased, the reaction of OH and organic matters can be promoted, the oxidation effect is improved, and the removal rate of CODCr is improved. The optimal Fenton reaction temperatures of different industrial waste water also have certain difference, so that the temperature of the warm water can be flexibly set.
Further, as shown in fig. 1, the medicine feeding mechanism 3 includes a pH detector 31, a medicine tank 32, and a controller 33, on the basis of the above-described embodiment; the pH detector 31 is inserted into the reaction tank, and the pH detector 31 is used for detecting the pH value of the wastewater in the reaction tank 22; the controller 33 is used for adjusting the administration type and the administration amount of the medicine tank 32 according to the pH value detected by the pH detector 31. The pH detector 31 includes a pH monitoring electrode 311 and a pH meter 312; the pH monitoring electrode 311 is embedded in the reaction tank 22, and the pH monitoring electrode 311 is used for monitoring the pH value of the wastewater in the reaction tank 22; a pH meter 312 is connected to the pH monitoring electrode 311, and the pH meter 312 is used to display the pH value monitored by the pH monitoring electrode 311 and feed back the pH value to the controller 33.
The medicine storage box 32 comprises an acid liquid dispenser 321 and an alkali liquid dispenser 322; the acid liquid dispenser 321 and the alkali liquid dispenser 322 are respectively connected with the reaction tank 22 through pipelines and valves.
Specifically, in this embodiment, a pH monitoring electrode 311 is disposed in the reaction mechanism 2 to monitor the pH of the reaction system, and a pH meter 312 displays the real-time pH value of the reaction system, and simultaneously feeds back to an acid liquid dispenser 321 and an alkali liquid dispenser 322 in the drug feeding mechanism 3. The pH range of the reaction system (usually 2.5 to 3.5) is set in advance. The pH of the wastewater to be treated is measured by the pH monitoring electrode 311 and the pH meter 312, if the pH of the wastewater is lower than the set range, the alkali solution dispenser 322 in the medicine feeding mechanism 3 is controlled to dispense alkali, and if the pH is higher than the set range, the acid solution dispenser 321 in the medicine feeding mechanism 3 is controlled, and the pH of the system is required to be maintained all the time in the subsequent reaction.
In general, fenton's reagent reacts under acidic conditions, fe in neutral and alkaline environments 2+ Cannot catalyze and oxidize H 2 O 2 OH is produced and ferric hydroxide is precipitated to lose catalytic energyForce. The results of a plurality of researches show that the Fenton reagent has strong oxidizing capability under the acidic condition, especially when the pH is 2-4, and the organic matter degradation rate is the fastest at the moment, so that the Fenton reagent can be degraded in a short period of minutes.
In this example, fenton oxidation reaction starts after the pH of the system is adjusted to the specified range, and stirring is continued during Fenton oxidation reaction. During Fenton reaction, fe is firstly added through a medicine feeding mechanism 3 2+ Stirring for 1-2min, and adding H 2 O 2 The oxidation reaction is started. The sample tube 25 can be used for sampling and testing at any time during the reaction. After the Fenton oxidation reaction is finished, the pH range is set to 7-8, and an alkali liquor dispenser 322 in the medicine feeding mechanism 3 is controlled to adjust the pH of the system to be neutral or alkaline. After the pH is adjusted to be neutral or alkaline, coagulant is added through the medicine feeding mechanism 3, and then the iron mud begins to gradually precipitate.
Further, as shown in fig. 1, the aeration and sludge discharge mechanism 4 in this embodiment includes an aeration disc 41, a sludge discharge and ventilation valve 42, an air inlet pipe 43 and a sludge discharge pipe 44; the aeration disc 41 is arranged at the bottom of the reaction tank 22; the air inlet pipe 43 and the mud discharging pipe 44 are connected with the aeration disc 41, and the mud discharging pipe 44 is coaxially sleeved on the outer side of the air inlet pipe 43; the sludge discharge and ventilation valve 42 is arranged on the air inlet pipe 43 and the sludge discharge pipe 44, and the sludge discharge and ventilation valve 42 is used for controlling the on and off of the air inlet pipe 43 and the sludge discharge pipe 44. In this embodiment, the air inlet pipe 14 and the mud discharging pipe 15 are in the form of inner and outer sleeves, the mud discharging ventilation valve 42 is in the form of a cross opening, and is horizontally ventilated, vertically ventilated and obliquely closed. In the state of the sludge discharge and ventilation valve 42a of fig. 3, sludge is discharged through the outer pipe sludge discharge pipe 44; in the state of the sludge discharge and ventilation valve 42b shown in fig. 4, ventilation is performed through the inner pipe intake pipe 43. After the iron sludge is basically precipitated, sludge is discharged through a sludge discharge and ventilation valve 42, so that solid-liquid separation is realized. Water bath or aeration can be performed as required in the test process.
In summary, the sequencing batch Fenton oxidation method water treatment test device provided by the embodiment of the utility model has the following advantages compared with the prior art:
1. by arranging the constant temperature mechanism 1, the reaction mechanism 2, the medicine feeding mechanism 3 and the aeration and sludge discharging mechanism 4, the requirements of aeration, stirring and medicine adding in different reaction stages can be met, and the test of the whole flow of the integrated Fenton oxidation process can be realized;
2. the constant temperature mechanism 1, the reaction mechanism 2, the medicine feeding mechanism 3 and the aeration and sludge discharging mechanism 4 are regulated in different settings, so that the changing requirements of various operation parameters in the test can be met;
3. the pH detector 31, the medicine storage box 32 and the controller 33 are linked, so that the automation of pH adjustment can be realized very conveniently, and the time cost is reduced. The pH is maintained unchanged in the Fenton reaction process, so that the reaction efficiency can be greatly improved.
In the description of the present specification, the description with reference to the term "particular example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The sequencing batch Fenton oxidation method water treatment test device is characterized by comprising: the device comprises a constant temperature mechanism, a reaction mechanism, a medicine feeding mechanism and an aeration mud discharging mechanism;
the reaction mechanism is arranged in the constant temperature mechanism and is used for carrying out reaction treatment on the wastewater, and the constant temperature mechanism is used for carrying out heat preservation treatment on the reaction mechanism;
the medicine feeding mechanism is connected with the reaction mechanism and is used for detecting and adjusting the pH value of the wastewater in the reaction mechanism;
the aeration mud discharging mechanism is arranged at the bottom of the reaction mechanism.
2. The sequencing batch Fenton oxidation process water treatment test device according to claim 1, wherein the reaction mechanism comprises a reaction tank, a stirring motor and a stirring paddle;
the reaction tank is used for containing the wastewater;
the stirring paddle is arranged in the reaction tank along the vertical direction;
the stirring motor is connected with the stirring paddle, and the stirring paddle can stir the wastewater in the reaction tank under the driving of the stirring motor.
3. The sequencing batch Fenton oxidation process water treatment test device according to claim 2, wherein the reaction mechanism further comprises a sample inlet tube;
the top of the reaction tank is provided with a sample inlet, and the sample inlet pipe is connected with the sample inlet.
4. The sequencing batch Fenton oxidation process water treatment test device according to claim 2, wherein the sequencing batch Fenton oxidation process water treatment device further comprises a sampling tube;
the sampling tube is connected to the tank body of the reaction tank.
5. The sequencing batch Fenton oxidation process water treatment test device according to claim 4, wherein the number of the sampling tubes is plural;
the sampling pipes are distributed at intervals along the vertical direction.
6. The sequencing batch Fenton oxidation process water treatment test device according to claim 2, wherein the constant temperature mechanism comprises a water tank, a constant temperature water outlet pipe and a constant temperature water inlet pipe;
the water tank is arranged around the reaction tank and is used for bearing heat-insulating water;
the constant temperature water outlet pipe and the constant temperature water inlet pipe are connected with the reaction tank.
7. The sequencing batch Fenton oxidation process water treatment test device according to claim 2, wherein the drug feeding mechanism comprises a pH detector, a drug storage tank and a controller;
the pH detector is inserted into the reaction tank and is used for detecting the pH value of the wastewater in the reaction tank;
the controller is used for adjusting the dosing type and the dosing amount of the medicine storage box according to the pH value detected by the pH detector.
8. The sequencing batch Fenton oxidation process water treatment test device according to claim 7, wherein the medicine storage tank comprises an acid liquid dispenser and an alkali liquid dispenser;
the acid liquor dispenser and the alkali liquor dispenser are respectively connected with the reaction tank through pipelines and valves.
9. The sequencing batch Fenton oxidation process water treatment test device according to claim 7, wherein the pH detector comprises a pH monitoring electrode and a pH meter;
the pH monitoring electrode is embedded in the reaction tank and is used for monitoring the pH value of the wastewater in the reaction tank;
the pH meter is connected with the pH monitoring electrode, and is used for displaying the pH value monitored by the pH monitoring electrode and feeding back the pH value to the controller.
10. The sequencing batch Fenton oxidation process water treatment test device according to claim 2, wherein the aeration and sludge discharge mechanism comprises an aeration disc, a sludge discharge and ventilation valve, an air inlet pipe and a sludge discharge pipe;
the aeration disc is arranged at the bottom of the reaction tank;
the air inlet pipe and the mud discharging pipe are connected with the aeration disc, and the mud discharging pipe is coaxially sleeved on the outer side of the air inlet pipe;
the mud discharging and ventilating valve is arranged on the air inlet pipe and the mud discharging pipe and is used for controlling the on and off of the air inlet pipe and the mud discharging pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322169934.5U CN220665030U (en) | 2023-08-11 | 2023-08-11 | Sequencing batch Fenton oxidation method water treatment test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322169934.5U CN220665030U (en) | 2023-08-11 | 2023-08-11 | Sequencing batch Fenton oxidation method water treatment test device |
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| Publication Number | Publication Date |
|---|---|
| CN220665030U true CN220665030U (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322169934.5U Active CN220665030U (en) | 2023-08-11 | 2023-08-11 | Sequencing batch Fenton oxidation method water treatment test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220665030U (en) |
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2023
- 2023-08-11 CN CN202322169934.5U patent/CN220665030U/en active Active
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