CN217809019U - Sewage treatment simulation device for simulating ozone catalyst experiment - Google Patents

Abstract

The application provides a sewage treatment analogue means of simulation ozone catalyst experiment, it includes: the aeration part, the filling part, the air outlet part and the container are arranged in the accommodating space of the aeration part, and an aeration head and a first interface are arranged in the accommodating space of the aeration part; the first open end of the hollow cavity of the filling part is communicated with the open end of the accommodating space, and the hollow cavity is filled with an ozone oxidation catalyst close to the first open end; the air outlet part is provided with a second interface and a third interface, and the open end of the cavity is communicated with the second open end of the hollow cavity of the filling part; the container is provided with a closed chamber for containing sewage, a fourth connector connected with the first connector of the aeration part through a first pipeline, and a fifth connector connected with the third connector of the air outlet part through a second pipeline. The aeration part, the filling part and the air outlet part adopt a three-section sectional connection mode, so that the aeration part, the filling part and the air outlet part are convenient to disassemble and assemble; and a water sample circulation is formed, so that the fluidity test in the whole experimental process is realized, and almost all experimental processes for treating the industrial wastewater by using the ozone catalyst can be met.

Description

Sewage treatment simulation device for simulating ozone catalyst experiment

Technical Field

The application relates to the technical field of sewage treatment, in particular to a sewage treatment simulation device for simulating an ozone catalyst experiment.

Background

The sewage treatment is one of the main contents of the fields of environmental control and environmental protection, ozone is an allotrope of oxygen, and the chemical formula is O ₃ There is a slight blue gas with a fishy smell. Ozone has strong oxidizing property, is a stronger oxidant than oxygen, and can generate oxidation reaction at a lower temperature. Ozone as an oxidant has the advantages of non-toxicity of oxidation products, high oxidation rate, simple generation mode and the like, is gradually introduced into the field of sewage treatment as early as the last century, and becomes one of indispensable advanced oxidation technologies.

The ozone oxidation treatment is to use ozone as a strong oxidant to oxidize organic matters or inorganic matters in water or wastewater so as to achieve the purposes of disinfection, oxidation or decoloration. The main equipment comprises air pretreatment, an ozone generator, a water-ozone contact reaction chamber, ozone tail gas treatment and the like. It is widely used in water treatment fields of deodorization, decoloration, sterilization, disinfection and the like for removing phenol, cyanogen, iron and manganese in water and has the advantages of fast reaction, small dosage, easy in-situ preparation, convenient operation, no secondary pollution and the like.

In the past, along with the popularization of the ozone technology, the ozone oxidation technology has some defects in the practical operation process. Mainly, the ozone consumption per unit of TOC removal is relatively large, which causes high cost (roughly estimated that only the energy consumption of an ozone generator accounts for 30% of the energy consumption of a sewage treatment system), so that a new process needs to be searched on the basis of the original process to improve the treatment efficiency, reduce the ozone addition and reduce the treatment cost.

In recent years, with the rapid development of various advanced oxidation technologies for ozone, catalytic ozone oxidation is receiving attention from the research community. The catalytic oxidation of ozone is an effective method for the advanced oxidation of organic matters, most of the organic matters which are difficult to be independently oxidized or degraded by ozone can be further oxidized at normal temperature and normal pressure, hydroxyl free radicals with strong oxidizing property are generated in the reaction process, and the utilization rate of ozone and the mineralization degree of the organic matters can be improved. Since the types of ozone catalysts used are complicated depending on the objects of catalytic oxidation, there are many factors affecting catalytic oxidation of ozone. One is the factor of the ozone catalyst itself, which has advantages and disadvantages depending on the type of ozone catalyst. Secondly, reaction time is adopted, the removal rate of the organic matters is improved along with the increase of the reaction time, but after the reaction reaches a certain degree, the removal rate tends to be stable, and the reaction removal rate cannot be improved by increasing the time, so that the determination of the optimal time of the reaction has a direct influence on the improvement of the oxidation reaction; and thirdly, the pH has great influence on the ozone oxidation, and the optimal pH required by different organic matters in the catalysis is different, but the catalytic oxidation performance is optimal under the neutral condition.

In order to research the above different conditions, find out the ozone catalyst most suitable for sewage plants and confirm the relevant conditions of the process, a local-appropriate experimental experiment of the ozone catalyst is needed, and the experimental part can help the sewage plants to quickly confirm the applicable field working conditions, but the prior corresponding experimental device has the following defects: the device can not be used for filling the ozone catalyst, can not realize the flow test of a circulating water sample, and can also cause the problem that the ozone catalyst blocks an air outlet and the like, and the existing related pure ozone experimental device can not meet the requirements of simulation experiments.

The Chinese patent with the application publication number of CN113262811A, which relates to an ozone catalyst, a preparation method and application thereof, is found through retrieval. The ozone catalyst disclosed by the patent is regular in shape, has a large specific surface area, and shows good catalytic activity in the process of catalyzing the ozone to oxidize the diclofenac sodium. The thermal synthesis method is adopted to synthesize the ozone catalyst, and the preparation method is simple to operate and low in cost. However, the patent does not disclose how to perform performance tests on ozone catalysts by means of laboratory pilot scale, and related experimental devices.

And the Chinese patent with application publication number CN110950419A, which relates to an ozone catalyst modification device, comprises a main control module and a reaction modification module, wherein the Chinese patent adopts one main control module to realize the centralized control of the three reaction modification modules, makes up the vacancy of the existing market for the catalyst modification device, and realizes the large-scale production of ozone catalyst modification, but the device can not be used in the simulation of sewage treatment experiments.

The existing related ozone catalytic equipment can not meet the experimental conditions of the ozone catalyst test. Therefore, it is necessary to develop an experimental device capable of satisfying experimental conditions for simulating the ozone catalyst test.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the application provides a sewage treatment simulation device for simulating an ozone catalyst experiment.

The application provides a sewage treatment analogue means of simulation ozone catalyst experiment, it includes:

the aeration part is provided with an accommodating space with one open end, the accommodating space is provided with an aeration head and a first interface, wherein an air inlet hole of the aeration head receives ozone, and an air outlet hole of the aeration head is positioned in the accommodating space and is arranged towards one open end;

the filling part is provided with a hollow chamber with two open ends, the first open end of the hollow chamber is communicated with the open end of the accommodating space, and the hollow chamber close to the first open end is filled with an ozone oxidation catalyst;

the air outlet part is provided with a cavity with one open end, a second interface used for discharging gas generated by ozone oxidation catalytic reaction and a third interface used for circulating sewage, and the open end of the cavity is communicated with the second open end of the hollow cavity of the filling part; and the number of the first and second groups,

the container is provided with a closed chamber for containing sewage and is provided with a fourth interface, a fifth interface, a sixth interface for adding a reagent to adjust the pH value and a seventh interface for obtaining circulating sewage, wherein the fourth interface is connected with the first interface of the aeration part through a first pipeline, and the fifth interface is connected with the third interface of the air outlet part through a second pipeline, so that the container, the air outlet part, the filling part and the aeration part form a closed environment with a circulating sewage water channel for ozone oxidation catalytic reaction.

Optionally, in some embodiments of the present application, the method further includes: a support portion for supporting the air outlet portion, the filling portion and the aeration portion; the support portion includes: the support rod is arranged on the upper surface of the annular component, the annular component is supported above the disk component through the support rod, the bottom surface of the annular component is connected with one end of the support rod, and the upper surface of the disk component is connected with the other end of the support rod; the center part of the annular component is used for penetrating through the aeration part, and the annular component is provided with a fixing component used for fixing the aeration part.

Optionally, in some embodiments of the present application, the first open end of the filling portion is connected to the open end of the aeration portion in a sealing manner by a first anchor ear; and/or the second open end of the filling part is connected with the open end of the air outlet part in a sealing way through a second hoop.

Optionally, in some embodiments of the present application, the filling portion is a cylindrical glass container having a hollow portion, and the hollow portion constitutes the hollow chamber. The outer walls of the two ends of the columnar glass container are respectively provided with a convex part which extends outwards and is used for fixing the first hoop and the second hoop; and sealing rings which are tightly matched with the aeration part and the air outlet part are respectively arranged at two ends of the columnar glass container.

Optionally, in some embodiments of the present application, the filling part further includes: the separation columns are arranged in the hollow cavity and positioned at the bottom layer and the upper layer of the catalyst, so that the catalyst is clamped between the separation columns; the separation fence is a circular part with a hole.

Optionally, in some embodiments of the present application, an inner wall of the hollow chamber extends inward in a circumferential direction to form a circular ring member for supporting the partition fence, and the circular ring member is close to one end of the aeration part.

Optionally, in some embodiments of the present application, the aeration portion is a first glass container, and the first glass container includes a first cylindrical portion and a first hemispherical portion, and the first hemispherical portion is located at one end of the first cylindrical portion, so that one end of the first cylindrical portion is closed to form the accommodating space;

the first hemispherical part is provided with a through hole for passing through the aeration head, and the through hole is tightly matched with the outer wall of the aeration head; the outer wall of the first columnar part and/or the first hemispherical part is provided with a first channel extending outwards, and the first channel is communicated with the accommodating space to form the first interface.

Optionally, in some embodiments of the present application, the number of the first interfaces is at least three;

the first interface is provided with a cover body connected through threads; and/or the presence of a gas in the atmosphere,

the aeration head and the first hemispherical part are integrally formed.

Optionally, in some embodiments of the present application, the seventh interface is disposed below the container, and the seventh interface is provided with a valve for controlling the switch.

Optionally, in some embodiments of the present application, the air outlet portion is a second glass container, the second glass container includes a second cylindrical portion and a second hemispherical portion, and the second hemispherical portion is located at an end of the second cylindrical portion, so that an end of the second cylindrical portion is closed to form the chamber;

a second channel extending outwards is arranged on the outer wall of the second hemispherical part, and the second channel is communicated with the cavity to form a second interface;

and a third channel extending outwards is arranged on the outer wall of the second cylindrical part, and the third channel is communicated with the cavity to form a third interface.

The application has the following beneficial effects:

according to the air-conditioning device, the aeration part, the filling part and the air outlet part are assembled into an integral structure in a three-section sectional manner, so that the air-conditioning device is convenient to disassemble, install and store; the filling part and the gas outlet part are communicated with the container, so that the aeration part, the filling part, the gas outlet part and the container form a closed environment with a circulating sewage water path for ozone oxidation catalytic reaction, the mobility of a water sample in the whole experimental process is ensured, a long-time flow test is realized, and the experimental process of almost all industrial wastewater ozone catalyst treatment can be met.

According to the ozone simulation device, the sixth interface for adding the reagent to adjust the pH value and the seventh interface for obtaining the circulating sewage are arranged on the container, so that the functions of adding the reagent midway to adjust the pH value, sampling and the like are realized, and the blank of an ozone simulation instrument is met; furthermore, the catalyst is filled in the partition columns arranged at the filling part, so that the problem that the ozone catalyst floats in the device along with aeration to block the aeration head to influence the experimental result is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sewage treatment simulation device for simulating an ozone catalyst experiment provided by the present application;

FIG. 2 is a schematic view of the connection of the filling section, the aeration section and the container provided in the present application;

FIG. 3 is a first schematic view of a support provided herein;

FIG. 4 is a second schematic view of the support portion provided herein;

FIG. 5 is a schematic view of the structure of an aeration section provided in the present application;

FIG. 6 is a schematic view of a filling section according to the present application;

FIG. 7 is a schematic structural view of a gas outlet provided in the present application;

FIG. 8 is a first schematic structural view of a container provided herein;

FIG. 9 is a second schematic structural view of a container provided herein;

the scores in the figure are indicated as: the device comprises a filling part 1, an aeration part 2, an air outlet part 3, a container 4, a support part 5, a first pipeline 6, a second pipeline 7, a first hoop 8, a second hoop 9, a disc part 51, a support rod 52, an annular part 53, a rectangular groove 54, a columnar glass container 11, a catalyst 12, a partition fence 13, a convex part 14, a first glass container 21, an aeration head 22, a first interface 23, an air inlet 2201, an air outlet 2202, a second glass container 31, a second interface 32, a third interface 33, a third glass container 41, a top cover 42, a fourth interface 43, a fifth interface 44, a sixth interface 45 and a seventh interface 46.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise specified, the use of directional terms such as "upper", "lower", "left" and "right" generally refer to upper, lower, left and right in the actual use or operation of the device, and specifically to the orientation of the drawing figures.

The present application provides a sewage treatment simulation apparatus for simulating an ozone catalyst experiment, which will be described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to related descriptions of other embodiments for parts that are not described in detail in a certain embodiment.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a sewage treatment simulation device for simulating an ozone catalyst experiment provided in the present application. In this application, reaction unit includes filling portion 1, aeration portion 2, the portion of giving vent to anger 3 and container 4, as shown in fig. 2, connects aeration portion 2, filling portion 1 and the portion of giving vent to anger 3 as an organic whole in proper order from the bottom up to ensure the leakproofness of aeration portion 2 and the junction of filling portion 1, and the leakproofness of filling portion 1 and the 3 junction of giving vent to anger.

Referring to fig. 5, the aeration part 2 has a receiving space with an open end, the receiving space is provided with an aeration head 22 and a first connector 23, wherein an air inlet 2201 of the aeration head 22 receives ozone and an air outlet 2202 is located in the receiving space and faces the open end. In a specific example, the aeration head adopts a quartz aeration head, the aperture of an air outlet of the quartz aeration head is 120 meshes so as to meet the requirement of ozone corrosion resistance, and the diameter of the aeration head is 45mm.

The filling part 1 is provided with a hollow chamber with two open ends, the first open end of the hollow chamber is communicated with the open end of the accommodating space, so that the hollow chamber of the filling part 1 is communicated with the accommodating space of the aeration part 2; the hollow chamber is filled with an ozone oxidation catalyst 12 near the first open end. Ozone and organic molecules of sewage are adsorbed on the surface of the catalyst 12 at the same time, and the ozone and the organic molecules react with each other. In specific implementation, the hollow chamber of the filling part 1 can be filled with different catalysts 12 and maintain the original oxidation efficiency.

The air outlet part 3 is provided with a chamber with an open end, a second interface 32 for discharging gas generated by ozone oxidation catalytic reaction and a third interface 33 for circulating sewage, the open end of the chamber is communicated with the second open end of the hollow chamber of the filling part 1, so that the chamber of the air outlet part 3, the hollow chamber of the filling part 1 and the accommodating space of the aeration part 2 are communicated.

The container 4 is provided with a closed chamber for containing sewage and is provided with a fourth interface 43, a fifth interface 44, a sixth interface 45 for adding a reagent to adjust the pH value and a seventh interface 46 for obtaining circulating sewage, wherein the fourth interface 43 is connected with the first interface 23 of the aeration part 2 through the first pipeline 6, the fifth interface 44 is connected with the third interface 33 of the air outlet part 3 through the second pipeline 7, so that the container 4, the air outlet part 3, the filling part 1 and the aeration part 2 form a closed environment with a circulating sewage water path for ozone oxidation catalytic reaction. The sewage enters the aeration part 2, the filling part 1 and the air outlet part 3 from the container 4 in sequence through the first pipeline 6, and returns to the container 4 through the second pipeline 7 to form a circulating water path. In a specific example, transparent PVDF hoses are used for the first and second pipes 6 and 7. The container 4 can complete the functions of sampling in midway, adding medicine to adjust pH and the like.

In the above embodiment, the aeration part 2, the filling part 1 and the air outlet part 3 are fixed in a three-section sectional manner, can be detached when not being tested, are convenient to store, and can be assembled when being tested, and the installation is convenient. The aeration part 2, the filling part 1 and the air outlet part 3 can be made of colorless toughened glass, and the maximum capacity of the reaction device consisting of the aeration part, the filling part and the air outlet part can be 3L. It should be noted that, a sealing ring is provided at each interface of the reaction apparatus to ensure the whole sealing performance during the experiment.

In other embodiments of the present application, the sewage treatment simulation apparatus for simulating an ozone catalyst experiment further includes: a support part 5 for supporting the air outlet part, the filling part and the aeration part. Referring to fig. 3, the supporting portion 5 includes: the support rod 52 is arranged above the disc part 51, and the annular part 53 is arranged above the disc part 51 and supported by the support rod 52, so that a two-layer support is formed. The annular member 53 has a bottom surface connected to one end of the support rod 52, and the disc member 51 has an upper surface connected to the other end of the support rod 52. 4 support rods 52 are welded to the disc member 51 at equal intervals to connect the upper ring member 53. The support bar 52 may be a steel bar. In one specific example, the disc member 51, the support rod 52 and the ring member 53 are all made of 304 or 316 stainless steel. Adopt supporting part 5 to guarantee that whole experimental facilities places in the support, avoid experimental apparatus in the past to put difficult problem to and disc part 51, bracing piece 52 and annular part 53 all adopt stainless steel material its difficult phenomenon that produces of surface.

Referring to fig. 4, the central portion of the annular member 53 is adapted to pass through the aeration portion, and the annular member 53 is provided with a fixing member for fixing the aeration portion. In some embodiments, referring to fig. 4, rectangular slots 54 are formed in both sides of the upper surface of the ring member 53. In a specific example, the disc member is a solid stainless steel disc having dimensional parameters of 1500mm diameter and 5mm thickness. The dimensional parameters of the annular part are 800mm for the outer diameter and 80mm for the inner diameter.

In other embodiments of the present application, please refer to fig. 2, the first open end of the filling part 1 is connected to the open end of the aeration part 2 by the first hoop 8; the second open end of the filling part 1 is hermetically connected with the open end of the air outlet part 3 through a second anchor ear 9. In some embodiments, the first anchor ear 8 and the second anchor ear 9 are respectively installed at two end portions of the filling portion 1 for connecting the aeration portion 2 and the air outlet portion 3, and the first anchor ear 8 and the second anchor ear 9 are adopted to facilitate the rapid detachment and installation of the filling portion 1, the aeration portion 2 and the air outlet portion 3, and ensure the sealing of joints among the three. The first anchor ear 8 and the second anchor ear 9 can be made of 304 or 316 stainless steel.

In other embodiments of the present application, referring to fig. 6, the filling part 1 is a cylindrical glass container 11 having a hollow portion constituting a hollow chamber. In a specific example, the dimensional parameters of the cylindrical glass container are 60mm in diameter and 500mm in height. In some embodiments, referring to fig. 6, the outer walls of the two ends of the cylindrical glass container 11 are provided with outwardly extending protrusions 14. The protruding part 14 is used for fixing the first anchor ear 8 and the second anchor ear 9. The cross section of the convex part 14 is a triangular structure, so that the first anchor ear 8 and the second anchor ear 9 can be conveniently fixed. Two ends of the columnar glass container 11 are respectively provided with a sealing ring which is tightly matched with the aeration part 2 and the air outlet part 3. In other embodiments, the two ends of the filler part are respectively fixed with the aeration part 2 and the air outlet part 3 by adopting the hoops and are matched with the sealing rings for use, so that the conditions of water leakage and air leakage in the experimental process can be ensured. The sealing ring can be made of polytetrafluoroethylene.

In other embodiments of the present application, referring to fig. 6, the filling part 1 further includes a partition fence 13. The separation fence 13 is arranged in the hollow chamber for separating and filling the ozone oxidation catalyst. The compartments 13 are located at the bottom and top of the catalyst such that the catalyst is sandwiched between the compartments 13. Through setting up the divider 13, ensured on the one hand that the catalyst does not all subside because of gravity and block up the aeration mouth by the aeration mouth, on the other hand has prevented that ozone from changing into the big bubble behind the catalyst, the condition that reduces oxidation efficiency appears. In specific implementation, a piece of partition fence is arranged on the circular ring part of the catalyst filling part to prevent the catalyst from falling to block an aeration port, and a piece of partition fence is arranged above the actual filling of the catalyst to ensure that ozone is re-dispersed into small bubbles after passing through the catalyst, thereby improving the oxidation efficiency.

The partition fence is a circular component, and a plurality of uniformly distributed holes penetrating through the thickness direction are formed in the circular component. In one specific example, the circular member is made of polytetrafluoroethylene, and the circular member has a dimension parameter of 60mm in diameter. In other embodiments, the inner wall of the hollow chamber extends circumferentially inward to form a ring member that supports the divider. The circular ring part is close to one end of the aeration part. The ring member may be arranged 50mm upwards at the lower end of the filling 1. In a specific example, the dimensional parameters of the annular ring member are 60mm outer diameter and 45mm inner diameter.

In other embodiments of the present application, referring to fig. 5, the aeration part 2 is a first glass container 21, and the first glass container 21 includes a first cylindrical part and a first hemispherical part, and the first hemispherical part is located at one end of the first cylindrical part, so that one end of the first cylindrical part is closed to form an accommodating space. In a specific example, the first cylindrical portion has a dimension parameter of 60mm in diameter and 150mm in height.

The first hemispherical part is provided with a through hole for passing through the aeration head, and the through hole is tightly matched with the outer wall of the aeration head; in some embodiments, the aeration head may be attached to the air inlet (i.e., the first hemispherical portion) at the bottom end of the first glass container 21 by glass-firing.

Referring to fig. 5, the first glass container 21 is provided with a plurality of first connectors 23, so as to facilitate aeration and water sample circulation. Specifically, a first channel extending outwards is arranged on the outer wall of the first columnar portion and/or the first hemispherical portion, and the first channel is communicated with the accommodating space to form a first interface 23. In some embodiments, the number of first interfaces 23 is at least three; the first connector 23 is provided with a cover body connected through threads; in a specific example, the first glass container 21 is provided with four first ports 23 with attached screw threads and a plastic cap with an inner diameter of 8mm. Wherein a first port 23 is located at the bottom of the first glass container 21 for connecting an external ozone source for air intake. The other first ports 23 are located on the side wall of the first glass container 21 for circulating the sampled water.

In other embodiments of the present application, referring to fig. 8, the container 4 is a third glass container 41 with a top cover 42, wherein the upper end of the third glass container 41 is open, and the top cover 42 covers the open end of the third container to form a closed chamber. Six 8mm internal diameter ports with attached screw threads and plastic caps are provided on the top cap 42 of the container 4 for circulating water samples or dosing. The fluidity of the water sample in the whole experimental process is ensured, and the long-time flow test is completed. In a specific example, the dimensional parameters of the third glass container 41 are height 150mm and diameter 100mm.

In other embodiments of the present application, please refer to fig. 8 and 9, the seventh port 46 is disposed below the container 4, and the seventh port 46 is provided with a valve for controlling the switch. In particular, a faucet control switch can be installed. The switch valve is arranged below the container 4, so that sampling test can be performed in the experimental process, the situation that the sampling test can only be stopped after the experiment in the past in the ozone experiment is distinguished, and the transition of the ozone experiment from static state to dynamic state is realized.

In other embodiments of the present application, referring to fig. 7, the air outlet portion is a second glass container 31, and the second glass container 31 includes a second cylindrical portion and a second hemispherical portion, the second hemispherical portion is located at an end of the second cylindrical portion, such that an end of the second cylindrical portion is closed to form a chamber. In a specific example, the second cylindrical portion has a dimension parameter of 60mm in diameter and 130mm in height.

The outer wall of the second hemispherical portion is provided with a second channel extending outwards, and the second channel is communicated with the cavity to form a second interface 32. The second port 32 is located at the top of the second glass container 31 for venting gas. In a specific example, the second interface 32 has a dimensional parameter of 8mm inner diameter.

And a third channel extending outwards is arranged on the outer wall of the second cylindrical part, and the third channel is communicated with the cavity to form a third interface 33. The third port 33 is located on the sidewall of the second glass container 31 for circulating the sampled water. In a specific example, the dimension parameter of the third interface 33 is an inner diameter of 8mm. The number of the third interfaces 33 is two.

In some embodiments, the second glass container is provided with a plurality of third ports with threads and plastic caps for water circulation, completing the circulation.

The sewage treatment simulation device for simulating the ozone catalyst experiment, which is provided by the embodiment, has the advantages that the structural design fills up the defect of the existing ozone catalyst wastewater treatment simulation experiment equipment, and the defect that the existing ozone experiment can only be used for static experiments is overcome. The adoption of the design structure of the tapping section type ensures simple assembly, convenient disassembly, convenient storage and transportation and the like. And real-time sampling detection in the experimental process is realized, and the method is beneficial to enterprises in the sewage treatment industry to carry out relevant simulation.

Application example

The air inlet mode of the application example is air inlet of the air path and is matched with the air flowmeter. The gas absorption bottle is prepared by pure water and excessive potassium iodide, and the used potassium iodide crystals are all AR analytically pure. The ozone source used was supplied by a mini ozone generator (10 g/h) of national stand type. The wastewater selected in the experiment is secondary effluent wastewater of a certain sewage plant.

The working process of the sewage treatment simulation device for simulating the ozone catalyst experiment is as follows:

1. the ozone generator was turned on for preheating, the partition was placed in advance at the ring part of the packing section, 300g of catalyst was packed, and another partition was placed above the catalyst and pressed. The aeration part, the filling part and the air outlet part are sequentially connected in sequence from bottom to top, and the two connecting positions are fixed by using a stainless steel quick-opening hoop to ensure sealing.

2. And a PVDF hose is used for connecting the air outlet of the ozone generator with the aeration port of the aeration part, and the air outlet of the air outlet part is connected with an external gas absorption bottle, so that the gas discharged from the air outlet part is contained in the external gas absorption bottle.

3. And connecting a third interface on the side surface of the air outlet part to a fifth interface on the top end cover of the container by using a PVDF hose, and connecting a fourth interface at the bottom end of the container to a first interface on the side surface of the aeration part.

4. After the device is installed, a tightness test is carried out, oxygen input is started, the ozone generation controller is closed, soapy water is dripped at all interface positions (PVDF hose joint positions and stainless steel hoop positions) of the device, whether the whole device is in an improper sealing position or not is observed, and the device is reconnected or the accessories are replaced when the whole device is not in an air leakage state.

5. And (3) opening a peristaltic pump, adjusting the flow to 200ml/min, slowly adding a water sample into the container until the whole reaction device is filled, starting an ozone generator to start air intake after the reaction device is observed to have no water leakage condition, and synchronously starting a timer.

6. And opening a switch valve of the container after timing for five minutes, sampling for analysis, synchronously replacing an air inlet concentration measuring bottle and a tail gas absorption bottle, measuring the concentration of ozone by using a titration method, calculating the adding amount, and determining the effect of the catalyst by combining a water quality analysis result.

7. And (4) adding 10% dilute sulfuric acid into the container, synchronously measuring the pH value until the pH value is acidic after continuously measuring for 2min, repeating the step 6, and observing the catalyst efficiency under the acidic condition.

After the experiment is finished, the peristaltic pump is closed, the ozone generator is closed, the pipeline is cleaned for 5min by using oxygen, aeration heads placed in the air inlet concentration measuring bottle and the tail gas absorption bottle are taken out, oxygen inlet is closed, residual water samples in the reactor are discharged, the first hoop and the second hoop are disassembled, residual catalysts are poured out, and the gas circuit is disassembled and cleaned.

The sewage treatment simulation device for simulating the ozone catalyst experiment provided by the application is described in detail above, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. The utility model provides a sewage treatment analogue means of simulation ozone catalyst experiment for simulate the ozone treatment process of sewage, its characterized in that includes:

the aeration part is provided with an accommodating space with one open end, the accommodating space is provided with an aeration head and a first interface, wherein an air inlet hole of the aeration head receives ozone, and an air outlet hole of the aeration head is positioned in the accommodating space and is arranged towards one open end;

the filling part is provided with a hollow chamber with two open ends, the first open end of the hollow chamber is communicated with the open end of the accommodating space, and the hollow chamber close to the first open end is filled with an ozone oxidation catalyst;

the air outlet part is provided with a chamber with one open end, a second interface used for discharging gas generated by ozone oxidation catalytic reaction and a third interface used for circulating sewage, and the open end of the chamber is communicated with the second open end of the hollow chamber of the filling part; and the number of the first and second groups,

the container is provided with a closed chamber for containing sewage and is provided with a fourth interface, a fifth interface, a sixth interface for adding a reagent to adjust the pH value and a seventh interface for obtaining circulating sewage, wherein the fourth interface is connected with the first interface of the aeration part through a first pipeline, and the fifth interface is connected with the third interface of the air outlet part through a second pipeline, so that the container, the air outlet part, the filling part and the aeration part form a closed environment with a circulating sewage water channel for ozone oxidation catalytic reaction.

2. The sewage treatment simulation device for simulating an ozone catalyst experiment according to claim 1, further comprising: a support portion for supporting the air outlet portion, the filling portion and the aeration portion;

the support portion includes: a disc member, a support rod and an annular member,

the annular component is supported above the disc component through the supporting rod, the bottom surface of the annular component is connected with one end of the supporting rod, and the upper surface of the disc component is connected with the other end of the supporting rod;

the center part of the annular component is used for penetrating through the aeration part, and the annular component is provided with a fixing component used for fixing the aeration part.

3. The sewage treatment simulation device for simulating the ozone catalyst experiment according to claim 1, wherein the first open end of the filling part is hermetically connected with the open end of the aeration part through a first hoop; and/or the presence of a gas in the gas,

and the second open end of the filling part is hermetically connected with the open end of the air outlet part through a second hoop.

4. The sewage treatment simulation device for simulating the ozone catalyst experiment according to claim 3, wherein the filling part is a cylindrical glass container having a hollow part, and the hollow part forms the hollow chamber;

the outer walls of the two ends of the columnar glass container are respectively provided with a convex part which extends outwards and is used for fixing the first hoop and the second hoop;

and sealing rings which are tightly matched with the aeration part and the air outlet part are respectively arranged at two ends of the columnar glass container.

5. The sewage treatment simulation device for simulating an ozone catalyst experiment according to claim 4, wherein the filling section further includes: the separation columns are arranged in the hollow cavity and positioned at the bottom layer and the upper layer of the catalyst, so that the catalyst is clamped between the separation columns;

the separation fence is a circular component with holes.

6. The sewage treatment simulation device for simulating the ozone catalyst experiment according to claim 5, wherein the inner wall of the hollow chamber extends inwards along the circumferential direction to form a circular ring member for supporting the partition fence, and the circular ring member is close to one end of the aeration part.

7. The sewage treatment simulation device simulating an ozone catalyst test according to claim 1,

the aeration part is a first glass container which comprises a first columnar part and a first hemispherical part, and the first hemispherical part is positioned at one end part of the first columnar part, so that one end part of the first columnar part is closed to form the accommodating space;

the first hemispherical part is provided with a through hole for passing through the aeration head, and the through hole is tightly matched with the outer wall of the aeration head; the outer wall of the first columnar part and/or the first hemispherical part is provided with a first channel extending outwards, and the first channel is communicated with the accommodating space to form the first interface.

8. The wastewater treatment simulation device for simulating an ozone catalyst experiment according to claim 7, wherein the number of the first connectors is at least three;

the first interface is provided with a cover body connected through threads; and/or the presence of a gas in the gas,

the aeration head and the first hemispherical part are integrally formed.

9. The sewage treatment simulation device for simulating the ozone catalyst experiment according to any one of claims 1 to 8, wherein the seventh interface is disposed below the container, and the seventh interface is provided with a valve for controlling the switch.

10. The apparatus for simulating sewage treatment according to any of claims 1 to 8, wherein the air outlet is a second glass container, the second glass container comprises a second cylindrical portion and a second hemispherical portion, and the second hemispherical portion is located at one end of the second cylindrical portion, so that one end of the second cylindrical portion is closed to form the chamber;

a second channel extending outwards is arranged on the outer wall of the second hemispherical part, and the second channel is communicated with the cavity to form a second interface;

and a third channel extending outwards is arranged on the outer wall of the second cylindrical part, and the third channel is communicated with the cavity to form a third interface.

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