CN215327454U - Inorganic chemistry experiment waste liquid treatment device and system - Google Patents
Inorganic chemistry experiment waste liquid treatment device and system Download PDFInfo
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- CN215327454U CN215327454U CN202122059227.1U CN202122059227U CN215327454U CN 215327454 U CN215327454 U CN 215327454U CN 202122059227 U CN202122059227 U CN 202122059227U CN 215327454 U CN215327454 U CN 215327454U
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Abstract
The utility model discloses a device and a system for treating waste liquid in inorganic chemical experiments, and relates to the technical field of chemical experiments. Inorganic chemistry experiment waste liquid treatment device is including the strong acid and strong base neutralization tank that communicates in proper order from beginning to end, the weak base neutralization tank, weak acid neutralization tank, filter tank and purifying tank, the experiment waste liquid is at first discharged into strong acid and strong base neutralization tank and takes place strong acid or strong base neutralization reaction in, go into the weak base neutralization tank in the back and carry out the weak base neutralization or get into the weak acid and carry out the weak acid neutralization in the neutralization tank, the back row is to filtering tank and is carried out solid-state particle filtration and purifying tank and carry out solution purification treatment, then the pure water of discharging. The application of the waste liquid treatment device and the system have good continuity in the treatment of inorganic waste liquid, are not limited by the pH value of the solution, have good treatment effect on the experimental waste liquid with large pH value difference, and save manpower and material resources.
Description
Technical Field
The utility model relates to the technical field of chemical experiments, in particular to a device and a system for treating waste liquid in inorganic chemical experiments.
Background
In the chemical experiment process, a certain amount of inorganic waste liquid is usually generated, the inorganic waste liquid generally has complex components and high concentration of harmful substances, the waste liquid treatment and the acid-base concentration measurement are required, and the inorganic waste liquid can be discharged after meeting the national specified requirements.
In the prior art, common laboratory alkaline waste liquid treatment methods at home and abroad comprise a chemical neutralization method, a flocculation method, a precipitation method and the like, and laboratory acidic waste liquid treatment methods comprise a chemical neutralization method, an extraction method, a membrane separation method and the like, all of the treatment methods have singleness and cannot meet the automatic regulation of waste liquid under different pH values, and when the waste liquid with different pH values, such as two waste liquids with the pH value of more than 10 and the pH value of less than 2, needs to be continuously treated, different treatment systems need to be replaced, and the continuous automatic treatment cannot be realized. Therefore, the existing device is limited by the acidity and alkalinity of the waste liquid, and the consumption of a large amount of manpower and material resources is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device and a system for treating inorganic chemical experiment waste liquid, which solve the problem that the existing device can not continuously and automatically treat inorganic waste liquid with different pH values.
In order to solve the technical problems, the utility model discloses the following technical scheme:
the utility model provides an inorganic chemistry experiment waste liquid treatment device which comprises a base, wherein a strong acid and strong base neutralization tank filled with an amphoteric reagent, a weak base neutralization tank filled with an acidic reagent, a weak acid neutralization tank filled with a basic reagent, a filtering tank with a filtering device and a purifying tank with a purifying device are sequentially communicated with one another from front to back on the base. The experimental waste liquid is firstly discharged into a strong acid and strong base neutralization tank through a liquid inlet to generate a strong acid or strong base neutralization reaction, then enters a weak base neutralization tank to perform weak base neutralization or enters a weak acid neutralization tank to perform weak acid neutralization, then is discharged into a filtering tank to perform solid particle filtering and solution purification treatment in a purification tank, and then is discharged out of pure water through a water outlet.
Based on the above scheme, further, strong acid strong alkali neutralization tank demountable installation is in the fixed slot of base, including jar body and agitating unit. Wherein, a liquid inlet and a liquid outlet are arranged on the tank body, and the inlet and the outlet are arranged in a lower inlet and an upper outlet; agitating unit includes motor, agitator, stirring leaf and cover, and the cover lid closes on the jar body, and the stirring leaf sets up on the outer wall of agitator, and the amphoteric reagent adds in the agitator, and the motor drives the agitator and stirs the leaf and be radial rotation to the internal strong acid of agitator tank or strong alkaline waste liquid and amphoteric reagent take place neutralization reaction. Preferably, the amphoteric reagent is alumina particles.
Further, weak base neutralization tank demountable installation is in another fixed slot of base, including jar body and agitating unit equally, and the inlet of weak base neutralization tank is connected with the liquid outlet of strong acid strong base neutralization tank, and jar internal wall is equipped with the electric heater unit who is used for heating jar internal solution, places the acid reagent who takes place the reaction with weak alkaline solution in the agitator. Preferably, the acidic reagent is an iodine particle.
Further, weak acid neutralization tank demountable installation is in another fixed slot of base, and is including jar body and agitating unit equally, and the liquid inlet of weak acid neutralization tank is connected with the liquid outlet of weak base neutralization tank, places the alkaline reagent who takes place the reaction with weak acid solution in the agitator. Preferably, the alkaline agent is magnesium carbonate particles.
Further, the liquid inlet of filtering the jar is connected with the liquid outlet of weak acid neutralization jar, including jar body and filter equipment, filter equipment demountable installation is on jar internal wall for filter the solid particle in the internal solution of jar. Preferably, the filtering device is a replaceable activated carbon filtering barrel.
Further, the inlet of purifying tank is connected with the liquid outlet of crossing the jar, including a jar body and purifier, purifier demountable installation is on jar internal wall for the internal solution of purifying tank obtains the pure water and through delivery port discharge pure water. Preferably, the purification device is an anion and cation exchange resin column.
The utility model also provides an inorganic chemical experiment waste liquid treatment system, which comprises the inorganic chemical experiment waste liquid treatment device, a sewage tank, a water storage tank and a connecting pipeline, wherein the connecting pipeline is detachably arranged at an inlet and an outlet of each tank body through a connecting flange, the sewage tank is used for collecting the experiment waste liquid and discharging the waste liquid into a strong acid and strong base neutralization tank through the connecting pipeline, and pure water purified by the purification tank is discharged into the water storage tank through the connecting pipeline.
Further, the base is provided with a circular fixing groove of a front row and a square fixing groove of a rear row, a strong acid and strong base neutralization tank, a weak acid neutralization tank, a filtering tank and a purifying tank are sequentially installed in the circular fixing groove, and the sewage tank and the water storage tank are detachably installed in the square fixing groove in a transition connection mode.
The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:
the utility model provides an inorganic chemistry experiment waste liquid treatment device and system, which comprises a strong acid and strong base neutralization tank, a weak acid neutralization tank, a filtering tank and a purifying tank which are sequentially communicated from front to back, wherein the experiment waste liquid is firstly discharged into the strong acid and strong base neutralization tank to generate strong acid or strong base neutralization reaction, then enters the weak base neutralization tank to perform weak base neutralization or enters the weak acid neutralization tank to perform weak acid neutralization, then is discharged into the filtering tank to perform solid particle filtering and solution purification treatment in the purifying tank, and then is discharged out of pure water. The device is not limited by the acidity and alkalinity of the experimental waste liquid, can realize continuous treatment on the experimental waste liquid with large difference between the front and the rear acidity and alkalinity, and saves manpower and material resources. In addition, the acid-base reagent selected in the neutralization tank is a condition trigger type reagent, so that the automatic proper amount of chemical medicines can be realized, the acid-base property of the solution cannot be changed due to the large consumption of the chemical medicines, and the full-automatic treatment is realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic structural diagram of an inorganic chemical experiment waste liquid treatment device according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the strong acid and strong base neutralization tank of FIG. 1;
FIG. 3 is a schematic structural diagram of an inorganic chemical experiment waste liquid treatment system according to the present invention;
reference numerals: 1-a sewage tank, 2-a water pump, 3-a connecting pipeline, 4-a connecting flange, 5-a strong acid and strong base neutralization tank, 51-a tank body, 52-a motor, 53-a stirring barrel, 54-a stirring blade, 55-a tank cover, 56-a liquid inlet, 57-a liquid outlet, 6-a weak base neutralization tank, 7-a weak acid neutralization tank, 8-a filtering tank, 9-a purification tank, 10-a base and 11-a water storage tank.
Detailed Description
In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. 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 invention.
FIG. 1 shows a schematic structural diagram of an inorganic chemical experiment waste liquid treatment device according to an embodiment of the present application.
As shown in fig. 1, the apparatus for treating inorganic chemical experiment waste liquid of the present embodiment includes a base 10, a plurality of fixing grooves are disposed on the base, and a strong acid and strong base neutralization tank 5, a weak base neutralization tank 6, a weak acid neutralization tank 7, a filtration tank 8 and a purification tank 9, which are sequentially disposed in the fixing grooves, are connected with each other in the front and back direction, and the following description is made according to the connection sequence of the tank bodies.
The strong acid and strong base neutralization tank 5 is detachably mounted in a fixing groove of the base 10 in a transition connection mode and mainly comprises a tank body 51 and a stirring device detachably mounted on the tank body. Wherein, one side of the tank body 51 is provided with a liquid inlet 56, the other side is provided with a liquid outlet 57, and the inlet and outlet positions are lower inlet and upper outlet; the stirring device comprises a motor 52, a stirring barrel 53, a stirring blade 54 and a tank cover 55, wherein the tank cover 55 is covered on the tank body 51, the stirring blade 54 is arranged on the outer wall of the stirring barrel 53, and the stirring barrel 53 is internally and additionally provided with the amphoteric reagent. Preferably, the mixing tank 53 is a combined structure of a mesh-shaped liner and a porous metal cylinder, the porous metal cylinder is arranged outside the mesh-shaped liner and is used for bearing the mesh-shaped liner, and the mesh-shaped liner is filled with alumina particles. After the motor 52 is started, the stirring barrel 53 and the stirring blades 54 are driven to rotate radially in the tank body 51, and the strong acid or strong alkaline waste liquid in the stirring tank body 51 and the alumina are subjected to neutralization reaction.
A liquid inlet of the weak base neutralization tank 6 is communicated with a liquid outlet of the strong acid and strong base neutralization tank 5, and the solution treated by the strong acid and strong base neutralization tank is discharged into the weak base neutralization tank for further neutralization treatment. The weak base neutralization tank is similar to the strong acid and strong base neutralization tank in structure, and comprises a tank body and a stirring device, the tank body and the stirring device are also detachably arranged in a fixing groove in a transition connection mode, and the inlet and outlet modes are inlet and outlet. But it is different from strong acid and strong base neutralization tank in that the stirring tank of the weak base neutralization tank 6 is filled with an acid reagent, preferably, the acid reagent is iodine particles which can generate disproportionation reaction with the alkalescent solution after being treated by alumina. Because the reaction speed of the iodine and the alkaline solution is slow, the tank body of the weak base neutralization tank 6 adopts an electric heating tank body, and an electric heating device is arranged on the inner wall of the tank body and is used for heating the solution in the tank body so as to improve the reaction activity of the iodine.
And a liquid inlet of the weak acid neutralization tank 7 is communicated with a liquid outlet of the weak base neutralization tank 6, and the solution treated by the weak base neutralization tank is discharged into the weak acid neutralization tank for further neutralization treatment. The weak acid neutralization tank is similar to the weak base neutralization tank and the strong acid and strong base neutralization tank in structure, comprises a tank body and a stirring device, and is also detachably arranged in a fixing groove in a transition connection mode, and the inlet and outlet modes are the inlet and the outlet. But the difference is that the central filling barrel of the weak acid neutralization tank is filled with a basic reagent, preferably, the basic reagent is magnesium carbonate particles which can generate neutralization reaction with the weak acid solution after being treated by alumina.
A liquid inlet of the filtering tank 8 is communicated with a liquid outlet of the weak acid neutralizing tank 7, and the solution treated by the weak acid neutralizing tank is discharged into the filtering tank for filtering treatment. The filter tank is detachably installed in the fixing groove of the base in a transition connection mode and mainly comprises a tank body and a filter device in the tank body. Wherein, a liquid inlet and a liquid outlet are arranged on the tank body, and the inlet and the outlet are also arranged in a lower inlet and an upper outlet; preferably, the filtering device adopts a replaceable activated carbon filtering barrel for filtering solid particles in the sewage in the tank body.
A liquid inlet of the purification tank 9 is communicated with a liquid outlet of the filtering tank 8, and the solution filtered by the filtering tank 8 is discharged into the purification tank for purification treatment. The purification tank 9 is detachably mounted in the fixing groove in a transition connection mode, and mainly comprises a tank body and a purification device in the tank body. Wherein, a liquid inlet and a water outlet are arranged on the tank body, and the inlet and the outlet are also arranged in a downward inlet and an upward outlet; preferably, the purification device adopts a replaceable anion-cation exchange resin column, and the anion-cation exchange resin column is detachably mounted on the tank body and used for purifying the solution in the tank body into pure water so as to realize full-automatic continuous waste liquid treatment.
The working process of the inorganic chemical experiment waste liquid treatment device is as follows:
firstly, the experimental waste liquid is discharged into the tank 51 of the strong acid and strong base neutralization tank through the liquid inlet 56, and the stirring barrel 53 and the stirring blade 54 radially rotate and stir the waste liquid in the tank 51 under the driving of the motor 52, so that the strong acid or strong base waste liquid and the alumina particles in the stirring barrel 53 are subjected to neutralization reaction. For solutions with different acid and alkali, the reactions in the strong acid and strong alkali neutralization tank 5 are respectively 6H++Al2O3＝2Al3++3H2O or 2OH-+Al2O3＝2AlO2-+H2And O. After the treatment, the pH value of the inorganic waste liquid is generally adjusted to be between 5 and 8, the pH value of the inorganic waste liquid is not too high, the excessive consumption of iodine and magnesium carbonate in subsequent operation is avoided, and the economic and labor cost is saved.
The solution treated by the strong acid and strong base neutralization tank 5 is discharged into a weak base neutralization tank 6, iodine in the weak base neutralization tank 6 and the weak base solution treated by the alumina are subjected to disproportionation reaction to be neutral, and the solution belongs to a condition trigger typeThe acid reagent can prevent iodine from dissolving in neutral and acid reagents, and automatic and proper amount of chemical medicine is realized. The reaction of the alkaline solution with iodine is 3I2+6OH-＝5I-+IO3 -+3H2O, possibly also with metaaluminates produced by the alumina solution under heating 3I2+6AlO2 -+9H2O＝6Al(OH)3+5I-+IO3 -。
The solution treated by the weak base neutralization tank 6 is discharged into the weak acid neutralization tank 7, magnesium carbonate particles in the weak acid neutralization tank react with the weak acid solution treated by the alumina to be neutral, and the magnesium carbonate is not dissolved in the neutral reagent due to belonging to a solid indissoluble salt reagent, so that the automatic proper amount of chemicals is realized. The reaction of the acid solution and magnesium carbonate is MgCO3+2H+＝Mg2++H2CO3Although carbonic acid is produced in this reaction, it does not adversely affect the water quality because of its characteristic of being easily decomposed. The pH of the solution after this treatment is generally in the range from 6 to 8.
Then, the solution treated by the weak acid neutralization tank 7 is discharged into a filtering tank 8, the pH value of the solution entering the filtering tank is close to neutral, and solid particles in the solution are removed under the filtering action of activated carbon.
Then, the solution filtered by the filter tank 8 is discharged into a purification tank 9, under the action of the anion-cation exchange resin column, the residual cations in the solution are replaced by hydrogen ions, and the residual anions are replaced by hydroxyl ions, so that the purified water is obtained through purification, and the purified water can be discharged through a pipeline.
The inorganic chemical experiment waste liquid treatment device has good continuity for treating inorganic waste liquid, is not limited by the acidity and alkalinity of the solution, and has good treatment effect on waste liquid with large acidity and alkalinity differences.
The utility model also provides an inorganic chemical experiment waste liquid treatment system, as shown in fig. 3, the waste liquid treatment system comprises a sewage tank 1, a water pump 2, a connecting pipeline 3, a connecting flange 4, a water storage tank 11 and the waste liquid treatment device in the embodiment.
Specifically, in the system, a connecting pipeline 3 is detachably mounted at an inlet and an outlet of each tank body through a connecting flange 4, and a sewage tank 1, a strong acid and strong base neutralization tank 5, a weak base neutralization tank 6, a weak acid neutralization tank 7, a filtering tank 8, a purifying tank 9 and a water storage tank 11 are sequentially connected from front to back. The fixed slot of base includes the circular fixed slot of front bank and the square fixed slot of back row, and wherein, install strong acid strong alkali neutralization jar, weak acid neutralization jar, filtration jar and purification jar in proper order in the circular fixed slot respectively, sewage tank 1 and water storage tank 11 are installed in square fixed slot with transition connection's mode detachably. The system collects the experimental waste liquid of an inorganic chemical laboratory through a sewage tank 1, then sends the experimental waste liquid into the waste liquid treatment device through a water pump 2 for neutralization and purification treatment, and discharges the treated pure water into a water storage tank 11 for recycling. The inlet and outlet of the water storage tank 11 are arranged in an upper inlet and a lower outlet, and the water storage tank 11 is provided with an adjusting valve for controlling the water storage capacity in the water storage tank. The structures of the components of the treatment system and the specific treatment process of the waste liquid in the treatment system can refer to the working process of the inorganic chemical experimental waste liquid treatment device in the above embodiments, and are not described herein again.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An inorganic chemistry experiment waste liquid treatment device comprises a base and is characterized in that a strong acid and strong base neutralization tank filled with an amphoteric reagent, a weak base neutralization tank filled with an acidic reagent, a weak acid neutralization tank filled with a basic reagent, a filtering tank with a filtering device and a purifying tank with a purifying device which are sequentially communicated from front to back are arranged on the base;
the experimental waste liquid is discharged into a strong acid and strong base neutralization tank through a liquid inlet to generate a strong acid or strong base neutralization reaction, then enters a weak base neutralization tank to perform weak base neutralization or enters a weak acid neutralization tank to perform weak acid neutralization, then is discharged into a filtering tank to perform solid particle filtering and solution purification treatment in a purification tank, and then is discharged out of pure water through a water outlet.
2. The apparatus of claim 1, wherein the neutralization tank for strong acid and strong base is detachably mounted in a fixing groove of the base, and comprises a tank body and a stirring device;
a liquid inlet and a liquid outlet are arranged on the tank body, and the inlet and the outlet are arranged in a lower inlet and an upper outlet;
agitating unit includes motor, agitator, stirring leaf and cover, and the cover lid closes on the jar body, and the stirring leaf sets up on the outer wall of agitator, and the amphoteric reagent adds in the agitator, and the motor drives the agitator and stirs the leaf and be radial rotation to the internal strong acid of agitator tank or strong alkaline waste liquid and amphoteric reagent take place neutralization reaction.
3. The apparatus of claim 2, wherein the weak base neutralization tank is detachably mounted in another fixing groove of the base, and comprises a tank body and a stirring device, wherein a liquid inlet of the weak base neutralization tank is connected with a liquid outlet of the strong acid and strong base neutralization tank, an electric heating device for heating the solution in the tank body is arranged on the inner wall of the tank body, and an acidic reagent reacting with the weak alkaline solution is placed in the stirring tank.
4. The apparatus of claim 3, wherein the weak acid neutralization tank is detachably mounted in another fixing groove of the base, and comprises a tank body and a stirring device, a liquid inlet of the weak acid neutralization tank is connected with a liquid outlet of the weak base neutralization tank, and an alkaline reagent reacting with the weak acid solution is placed in the stirring tank.
5. The apparatus of claim 4, wherein the amphoteric reagent is alumina particles, the acidic reagent is iodine particles, and the basic reagent is magnesium carbonate particles.
6. The apparatus of claim 1, wherein the liquid inlet of the filtration tank is connected to the liquid outlet of the weak acid neutralization tank, and the apparatus comprises a tank and a filtration unit, wherein the filtration unit is detachably mounted on the inner wall of the tank and is used for filtering solid particles in the solution in the tank.
7. The apparatus of claim 6, wherein the liquid inlet of the purification tank is connected to the liquid outlet of the filtration tank, and the apparatus comprises a tank body and a purification device, wherein the purification device is detachably mounted on an inner wall of the tank body, and is used for purifying the solution in the tank body to obtain pure water and discharging the pure water through the water outlet.
8. The apparatus of claim 7, wherein the filtering device is a replaceable activated carbon filtering barrel, and the purifying device is an anion-cation exchange resin column.
9. An inorganic chemical experiment waste liquid treatment system, comprising the inorganic chemical experiment waste liquid treatment apparatus as claimed in any one of claims 1 to 8, a sewage tank, a water storage tank and connecting pipelines, wherein the connecting pipelines are detachably mounted at the inlet and the outlet of each tank body, the sewage tank is used for collecting the experiment waste liquid and discharging the waste liquid into the strong acid and strong alkali neutralization tank through the connecting pipelines, and the purified pure water of the purification tank is discharged into the water storage tank through the connecting pipelines.
10. The inorganic chemical experiment waste liquid treatment system as claimed in claim 9, wherein the base is provided with a circular fixing groove at the front row and a square fixing groove at the rear row, the circular fixing groove is internally and sequentially provided with a strong acid and strong base neutralization tank, a weak acid neutralization tank, a filtering tank and a purifying tank, and the sewage tank and the water storage tank are detachably arranged in the square fixing groove in a transitional connection manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122059227.1U CN215327454U (en) | 2021-08-30 | 2021-08-30 | Inorganic chemistry experiment waste liquid treatment device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122059227.1U CN215327454U (en) | 2021-08-30 | 2021-08-30 | Inorganic chemistry experiment waste liquid treatment device and system |
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| CN215327454U true CN215327454U (en) | 2021-12-28 |
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