CN111777236A - Intelligent laboratory inorganic heavy metal waste liquid treatment device and treatment method - Google Patents
Intelligent laboratory inorganic heavy metal waste liquid treatment device and treatment method Download PDFInfo
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- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The invention provides an intelligent laboratory inorganic heavy metal waste liquid treatment device and a treatment method, and aims to solve the problems that in the prior art, the waste water treatment effect is poor, the discharge requirement cannot be met, and the waste water treatment is simple and lacks pertinence. The device comprises a comprehensive reaction tank, a precipitation separation device, a pH sensor, a temperature sensor, a dosing pump and an intelligent control system. The invention adopts various medicines for treatment, thereby being capable of pertinently removing heavy metal ions and leading the waste liquid to meet the discharge requirement, and adopts various devices for joint operation, thereby being capable of efficiently treating the heavy metal ions in the waste liquid and improving the treatment efficiency.
Description
Technical Field
The invention relates to an intelligent laboratory inorganic heavy metal waste liquid treatment device and a treatment method.
Background
The inorganic heavy metal waste liquid discharged from a laboratory has complex components, small amount and high concentration, and the direct discharge causes great pollution to the environment.
However, some scientific research laboratories only simply treat the generated waste liquid after investigation, and even discharge the waste liquid without any treatment; some treatment devices on the market are discharged after being treated, but the treatment devices on the market have the following two problems:
1. only can treat inorganic heavy metal wastewater with low concentration, has poor direct treatment effect on high-concentration waste liquid, and can not reach the discharge standard;
2. the same treatment method is adopted for all heavy metal ions in the wastewater, and the pertinence is poor.
Disclosure of Invention
The invention aims to provide an intelligent laboratory inorganic heavy metal waste liquid treatment device, which aims to solve the problems that in the prior art, the waste water treatment effect is poor, the discharge requirement cannot be met, and the waste water treatment is simple and lacks pertinence.
The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an intelligent laboratory inorganic heavy metal waste liquid treatment device, which is characterized in that: comprises a comprehensive reaction tank, a precipitation separation device, a pH sensor, a temperature sensor, a dosing pump and an intelligent control system; the PH sensor is arranged in the comprehensive reaction tank, the temperature sensor is arranged outside the comprehensive reaction tank, and the readings of the PH sensor and the temperature sensor are displayed on a computer through an intelligent control system; the dosing pump is connected with the comprehensive reaction tank through a pipeline, the precipitation separation device is connected with the comprehensive reaction tank through a pipeline, and the intelligent control system is connected with the whole waste liquid treatment device through an Ethernet.
Alternatively or preferably, the integrated reaction tank comprises an upper portion, a middle portion and a bottom portion; the upper part of the comprehensive reaction tank is connected with a waste liquid dumping hopper through a pipeline; the dosing pump comprises a dosing metering pump and a peristaltic dosing pump, the dosing metering pump and the peristaltic dosing pump are respectively connected with a first medicine storage box and a second medicine storage box through pipelines, and dosing ports are formed in the tops of the first medicine storage box and the second medicine storage box.
Alternatively or preferably, the upper part and the bottom of the comprehensive reaction tank are connected through a pipeline; synthesize the top in reaction tank and install agitator motor, agitator motor includes motor and puddler, the puddler stretches into and synthesizes reaction tank middle part.
Optionally or preferably, the sedimentation separation device comprises an upper part and a bottom part, a pp bag assembly is arranged in the upper part of the sedimentation separation device, a pressure sensor is mounted at the top part of the sedimentation separation device, and the reading of the pressure sensor is displayed on a computer through an intelligent control system.
Optionally or preferably, the bottom of the comprehensive reaction tank is connected with the precipitation separation device through a pipeline; the precipitation separation device is connected with a clean water tank through a pipeline, and the clean water tank comprises an upper part and a bottom part; a first-stage filter material column, a first-stage adsorption material column, a second-stage adsorption material column, a third-stage adsorption material column, a reverse osmosis membrane column and a conductivity meter are sequentially connected in series between the precipitation separation device and the upper part of the clean water tank; still be connected with the electromagnetic diaphragm booster pump between precipitation separator to the one-level filter media, the electromagnetic diaphragm booster pump passes through the pipeline and is connected with comprehensive reaction tank middle part.
Optionally or preferably, another pipeline is connected between the precipitation separation device and the electromagnetic diaphragm booster pump, and the bottom of the clean water tank and the flowmeter are sequentially connected with the other pipeline.
Optionally or preferably, a power pump is arranged between the bottom of the comprehensive reaction tank and the precipitation separation device, and a second electromagnetic valve is arranged between the bottom of the comprehensive reaction tank and the power pump; the device comprises a waste liquid pouring hopper, a settling separation device, a clean water tank, a conductivity meter, a waste liquid pouring hopper, a comprehensive reaction tank, a flow meter, a waste liquid pouring hopper, a settling separation device, a diaphragm booster pump, a diaphragm pump, a; synthesize the upper portion, middle part and the bottom of reaction tank, precipitation separation device's upper portion and bottom, level sensor is all installed to the upper portion and the bottom in clean water basin, level sensor reports to the police through intelligent control system.
The invention provides a treatment method of an intelligent laboratory inorganic heavy metal waste liquid treatment device, which comprises the following steps:
liquid feeding: pouring the waste liquid into a waste liquid pouring hopper and controlling the waste liquid to enter a comprehensive reaction tank through a first electromagnetic valve;
and (3) carrying out sectional treatment on the comprehensive reaction tank: starting a stirring motor to stir for 1-3 minutes to enable the waste liquid to be uniform, measuring the pH value through a pH sensor, and selecting a preset treatment scheme by combining the temperature value measured by a temperature sensor and the ion type; the segmentation process comprises the following sub-steps:
(1) adjusting the pH value:
firstly, heavy metal ions are selected and adjusted to a preset optimal pH value according to the types of the ions;
secondly, no heavy metal ions exist, and the pH value is adjusted to the pH value within the range of the emission standard;
thirdly, calculating a first medicament and a second medicament which are respectively required for regulating acid and alkali according to a specific formula through an actual pH value and the amount of waste liquid treated once, controlling a medicine feeding pump by the intelligent control system to pump the required first medicament and the required second medicament into a comprehensive reaction tank, starting a stirring motor, and stirring for 3-6 minutes;
(2) adding treatment agent III
Firstly, heavy metal ions exist, and according to the types of the ions and the maximum value of the residual amount under the optimal pH value, dosing is carried out quantitatively according to the types of the ions by a dosing metering pump of a medicament III, so that free heavy metal ions in the waste liquid become precipitates;
secondly, no heavy metal ions are generated, and no treatment agent III is added;
thirdly, after adding the third medicament, starting a stirring motor, and stirring for 7-9 minutes;
(3) adding the fourth medicament and the fifth medicament,
the two medicaments are added in sequence of adding the medicament IV and then adding the medicament V;
firstly, no heavy metal ions are generated, and no medicament IV or medicament V is required to be added;
secondly, adding a fourth medicament and a fifth medicament quantitatively within the range of the difference value between the theoretical alkali consumption and the actual alkali consumption to enable heavy metal ion precipitates to form large flooding and settle;
thirdly, adding a medicament IV and stirring for 3-5 minutes, adding a medicament V and stirring for 3-5 minutes to settle small precipitates, opening an electromagnetic valve II at the front end of a power pump, starting the power pump to pump liquid in the comprehensive reaction tank into a precipitation separation device until a liquid level sensor at the bottom of the comprehensive reaction tank gives an alarm;
and (3) treating the filtrate: when a liquid level sensor at the middle upper part of the precipitation separation device gives an alarm, the electromagnetic valves a, c and d are opened, the electromagnetic valves b and f are closed, and the electromagnetic diaphragm booster pump is started to enable filtrate to sequentially pass through the primary filter material column, the primary adsorption material column, the secondary adsorption material column, the tertiary adsorption material column and the reverse osmosis membrane column to obtain concentrated solution and clear solution; the concentrated solution returns to the precipitation separation device through a pipeline where the power pump is located, and clear liquid enters the upper part of a clear water tank through a conductivity meter; when the value measured by the pressure sensor is greater than 0.45MPa, the electromagnetic diaphragm booster pump stops pumping, the electromagnetic valve II at the front end of the power pump is closed, and the intelligent control system prompts the PP bag assembly to be taken out, replaced or cleaned;
clear liquid treatment: when a liquid level sensor at the upper part of the clean water tank gives an alarm, the electromagnetic diaphragm booster pump is closed, the electromagnetic valve b is closed, the electromagnetic valve i is opened to discharge, and when the liquid level sensor at the bottom part gives an alarm, the electromagnetic valve i is closed;
adding medicine treatment: the bottom of the outer wall of the medicine storage box is provided with a liquid level sensor, and when the medicine is used up or is at a low liquid level, the liquid level controller gives an alarm; in the charging process, the intelligent control system stops operating;
a cleaning process comprising the sub-steps of:
(1) cleaning a sensor in the comprehensive reaction tank:
after the comprehensive reaction tank is emptied after treatment, closing the electromagnetic valves a, c, f, h and g, opening the electromagnetic valves b, e and f, starting the electromagnetic diaphragm booster pump, flushing for 1-2 minutes, and in the cleaning process, closing the electromagnetic valves below the waste liquid dumping hopper once and not feeding liquid;
(2) cleaning a power pump:
after the system stops running for 2-4 hours, the first electromagnetic valve below the waste liquid dumping hopper is closed and no liquid is fed, the first electromagnetic valves a, c, f, h and g are closed, the second electromagnetic valves b, e and f are opened, the electromagnetic diaphragm booster pump is started, water in the clean water tank is pumped to the middle liquid level sensor of the comprehensive reaction tank to alarm, the stirring motor starts stirring for 1-3 minutes, the second electromagnetic valve at the front end of the power pump is opened, the power pump is started, the water is discharged to the bottom liquid level sensor of the comprehensive reaction tank to alarm, the power pump is stopped, and the stirring motor is stopped;
alternatively or preferably, the first agent is a dilute solution of sulfuric acid or hydrochloric acid; the second medicament is sodium hydroxide aqueous solution, potassium hydroxide aqueous solution or lime water; the third reagent is a self-made heavy metal trapping agent, the fourth reagent is a coagulant, and the fifth reagent is a flocculating agent.
Alternatively or preferably, the specific formula is:
s1, when the target pH value is x and not more than 7, the formula is as follows:
when the pH value of the stock solution is y and less than x, adding alkaline solution:
when the pH value of the stock solution is y, is more than x and is not more than 7, adding acid solution:
③ when the pH value of the stock solution is y and is more than 7, adding acid solution:
s2, when the target pH value is x and is more than 7, the formula is as follows:
when the pH value of the stock solution is y and is less than 7, adding alkaline solution:
when the pH value of the stock solution is y and is more than 7 and not more than x, adding an alkali solution:
③ when the pH value of the stock solution is y and is more than x, adding acid solution:
in the formula, VAcid(s)、VAlkali、a1、a2And V0Respectively the theoretical acid dosage (L), the theoretical alkali dosage (L), the quantity concentration (mol/L) of the alkaline drug substance, the quantity concentration (mol/L) of the acid drug substance and the stock solution volume (L), and the ∑ V isAlkali＝VBase 1+VBase 2+VBase 3+…+VBase nI.e. the sum of each addition of lye.
Based on the technical scheme, the following technical effects can be generated:
(1) according to the treatment method of the inorganic heavy metal waste liquid treatment device in the intelligent laboratory, provided by the invention, various medicines are adopted for treatment, so that heavy metal ions can be removed in a targeted manner, and the waste liquid meets the discharge requirement.
(2) According to the intelligent laboratory inorganic heavy metal waste liquid treatment device, multiple devices are adopted to work together, so that heavy metal ions in waste liquid can be treated efficiently, and the treatment efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be processed in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. dumping waste liquid into a hopper; 2. a first electromagnetic valve; 3. a comprehensive reaction tank; 4. an external-pasting type high-low ultrasonic liquid level sensor; 5. a pH sensor; 6. a second medicine storage box; 7. a stirring motor; 8. dosing a metering pump; 9. a first medicine storage box; 10. a power pump; 11. a precipitation separation device; 12. a pressure sensor; 13. a PP bag assembly; 14. an electromagnetic diaphragm booster pump; 15. a first-stage adsorption material; 16. a secondary adsorption material; 17. a third-stage adsorbing material; 18. a reverse osmosis membrane column; 19. a clean water tank; 20. an intelligent control system; 21. a temperature sensor; 22. a pH sensor cleaning pool; 23. a conductivity meter; 24. a flow meter; 25. a peristaltic dosing pump; 26. a second electromagnetic valve; 27. a primary filter material; a. an electromagnetic valve a; b. a solenoid valve b; c. a solenoid valve c; d. a solenoid valve d; e. an electromagnetic valve e; f. an electromagnetic valve f; g. an electromagnetic valve g; h. an electromagnetic valve h; i. and an electromagnetic valve i.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1:
example 1
The invention provides an intelligent laboratory inorganic heavy metal waste liquid treatment device, which is characterized in that: comprises a comprehensive reaction tank 3, a precipitation separation device 11, a PH sensor 5, a temperature sensor 21, a dosing pump and an intelligent control system 20; the PH sensor 5 is arranged in the comprehensive reaction tank 3, the temperature sensor 21 is arranged outside the comprehensive reaction tank 3, and the readings of the PH sensor 5 and the temperature sensor 21 are displayed on a computer through the intelligent control system 20; the dosing pump is connected with the comprehensive reaction tank 3 through a pipeline, the precipitation separation device 11 is connected with the comprehensive reaction tank 3 through a pipeline, and the intelligent control system 20 is connected with the whole waste liquid treatment device through an Ethernet.
As an alternative embodiment, the integrated reaction tank 3 includes an upper portion, a middle portion and a bottom portion; the upper part of the comprehensive reaction tank 3 is connected with a waste liquid dumping hopper 1 through a pipeline; the dosing pump comprises a dosing metering pump 8 and a peristaltic dosing pump 25, the dosing metering pump 8 and the peristaltic dosing pump 25 are respectively connected with a first medicine storage box 9 and a second medicine storage box 6 through pipelines, and dosing ports are formed in the tops of the first medicine storage box 9 and the second medicine storage box 6.
As an alternative embodiment, the upper part and the bottom part of the integrated reaction tank 3 are connected through a pipeline; synthesize the top of reaction tank 3 and install agitator motor 7, agitator motor 7 includes motor and puddler, the puddler stretches into 3 middle parts of synthesizing the reaction tank.
As an optional embodiment, the sedimentation separation device 11 comprises an upper part and a bottom part, a PP bag assembly 13 is arranged in the upper part of the sedimentation separation device 11, a pressure sensor 12 is mounted on the top part of the sedimentation separation device 11, and the reading of the pressure sensor 12 is displayed on a computer through an intelligent control system 20.
As an alternative embodiment, the bottom of the integrated reaction tank 3 is connected to the precipitation separation device 11 through a pipeline; the precipitation separation device 11 is connected with a clean water tank 19 through a pipeline, and the clean water tank 19 comprises an upper part and a bottom part; a first-stage filter material 27 column, a first-stage adsorbing material 15 column, a second-stage adsorbing material 16 column, a third-stage adsorbing material 17 column, a reverse osmosis membrane column 18 and a conductivity meter 23 are sequentially connected in series between the precipitation separation device 11 and the upper part of the clean water tank 19; still be connected with electromagnetic diaphragm booster pump 14 between precipitation separator 11 and the one-level filter media 27, electromagnetic diaphragm booster pump 14 passes through the pipeline and is connected with 3 middle parts of synthesizing the reaction tank.
In this embodiment, another pipeline is connected between the precipitation separation device 11 and the electromagnetic diaphragm booster pump 14, and the bottom of the clean water tank 19 and the flowmeter 24 are sequentially connected with the other pipeline.
In this embodiment, a power pump 10 is disposed between the bottom of the integrated reaction tank 3 and the precipitation separation device 11, and a second electromagnetic valve 26 is disposed between the bottom of the integrated reaction tank 3 and the power pump 10; a first electromagnetic valve 2 is arranged between the waste liquid dumping hopper 1 and the upper part of the comprehensive reaction tank 3, a first electromagnetic valve a is arranged between the sedimentation separation device 11 and another pipeline, a second electromagnetic valve b is arranged between the sedimentation separation device 11 and the bottom of the clean water tank 19, a first electromagnetic valve c is arranged between the electromagnetic diaphragm booster pump 14 and the first-stage filter material 27 column, a second electromagnetic valve d is arranged between the conductivity meter 23 and the upper part of the clean water tank 19, a second electromagnetic valve f and a second electromagnetic valve e are sequentially arranged between the electromagnetic diaphragm booster pump 14 and the middle part of the comprehensive reaction tank 3, a second electromagnetic valve g is arranged between the upper part and the bottom of the comprehensive reaction tank 3, a second electromagnetic valve h is arranged between the peristaltic dosing pump 25 and the comprehensive reaction tank 3, and a second electromagnetic valve i; synthesize the upper portion, middle part and the bottom of reaction tank 3, precipitate separator 11's upper portion and bottom, level sensor 4 is all installed to the upper portion and the bottom of clean water basin 19, level sensor 4 reports to the police through intelligent control system 20.
In this example, the waste liquid contains Fe3+1L of waste liquid of (1); pouring the waste liquid into a waste liquid dumping hopper 1 and controlling the waste liquid to enter a comprehensive reaction tank 3 through a first electromagnetic valve 2; starting a stirring motor 7 to stir for 2 minutes to enable the waste liquid to be uniform, measuring the pH value to be 3 by a pH sensor 5, measuring the temperature value to be 20 ℃ by combining a temperature sensor 21, and measuring the temperature value to be Fe due to the fact that Fe3+The optimal precipitation pH value of the solution is 7, so that a second medicament calculated according to a specific formula is added, and the second medicament is a sodium hydroxide aqueous solution; adjusting the pH value of the waste liquid to 7 and stirring for 4 minutes;
in the present embodiment, the specific formula is
In the formula a1The concentration of the second medicament is 1mol/L, V0V is calculated from 1L volume of waste liquid, y is the original pH of the waste liquid of 3, x is the target pH of the waste liquid of 7Alkali＝0.99L；VFor actual unit alkaliMeasurement ofIs 1.2L; adding the third medicament to cause Fe in the waste liquid3+All precipitate, and the stirring motor 7 is started to stir for 8 minutes.
As an alternative embodiment, the addition amounts of the fourth and fifth agents are shown in table 1 below:
TABLE 1 amounts of drug four and drug five added
V in Table 1Unit difference in base＝VActual amount of alkali used per unit-VAlkali。
In the embodiment, the dosage of the fourth medicament is 4ml, and the dosage of the fifth medicament is 3 ml; adding the fourth medicament first and then adding the fifth medicament.
In this embodiment, when the upper liquid level sensor 4 in the precipitation separation device 11 gives an alarm, the electromagnetic valves a, c and d are opened, the electromagnetic valves b and f are closed, and the electromagnetic diaphragm booster pump 14 is started to enable the filtrate to sequentially pass through the primary filter material 27 column, the primary adsorption material 15 column, the secondary adsorption material 16 column, the tertiary adsorption material 17 column and the reverse osmosis membrane column 18, so as to obtain a concentrated solution and a clear solution; the concentrated solution returns to the precipitation separation device 11 through a pipeline where the power pump 10 is located, and clear liquid enters the upper part of a clear water tank 19 through a conductivity meter 23; when the value measured by the pressure sensor 12 is greater than 0.45MPa, the electromagnetic diaphragm booster pump 14 stops pumping, the second electromagnetic valve 26 at the front end of the power pump 10 is closed, and the intelligent control system 20 prompts the PP bag assembly 13 to be taken out, replaced or cleaned.
In the embodiment, when the liquid level sensor 4 at the upper part of the clean water tank 19 alarms, the electromagnetic diaphragm booster pump 14 is closed, the electromagnetic valve b is closed, the electromagnetic valve i is opened to discharge, and when the liquid level sensor 4 at the bottom part of the clean water tank alarms, the electromagnetic valve i is closed.
In the embodiment, the bottom of the outer wall of the medicine storage box is provided with a liquid level sensor 4, and when the medicine is used up or is at a low liquid level, the liquid level controller gives an alarm; during the charging process, the intelligent control system 20 stops operating.
In this embodiment, after the integrated reaction tank 3 is emptied, the electromagnetic valves a, c, f, h and g are closed, the electromagnetic valves b, e and f are opened, the electromagnetic diaphragm booster pump 14 is started to flush for 1-2 minutes, and in the cleaning process, the electromagnetic valve one 2 below the waste liquid dumping hopper 1 is closed and no liquid is fed.
In the embodiment, after the waste liquid is treated, the clean water tank 19 needs to be cleaned, when the system stops running for 2-4 hours, the first electromagnetic valve 2 below the waste liquid dumping hopper 1 is closed and no liquid is fed, the electromagnetic valves a, c, f, h and g are closed, the electromagnetic valves b, e and f are opened, the electromagnetic diaphragm booster pump 14 is started, water in the clean water tank 19 is pumped to the middle liquid level sensor 4 of the comprehensive reaction tank 3 for alarming, after the stirring motor 7 starts stirring for 1-3 minutes, the second electromagnetic valve 26 at the front end of the power pump 10 is opened, the power pump 10 is started, the water is discharged to the bottom liquid level sensor 4 of the comprehensive reaction tank 3 for alarming, the power pump 10 stops, and the stirring motor 7 stops;
in alternative embodiments, the first agent is a dilute solution of sulfuric acid or hydrochloric acid; the second medicament is sodium hydroxide aqueous solution, potassium hydroxide aqueous solution or lime water; the third reagent is a self-made heavy metal trapping agent, the fourth reagent is a coagulant, and the fifth reagent is a flocculating agent.
As an alternative embodiment, the specific formula is:
s1, when the target pH value is x and not more than 7, the formula is as follows:
when the pH value of the stock solution is y and less than x, adding alkaline solution:
when the pH value of the stock solution is y, is more than x and is not more than 7, adding acid solution:
③ when the pH value of the stock solution is y and is more than 7, adding acid solution:
s2, when the target pH value is x and is more than 7, the formula is as follows:
when the pH value of the stock solution is y and is less than 7, adding alkaline solution:
when the pH value of the stock solution is y and is more than 7 and not more than x, adding an alkali solution:
③ when the pH value of the stock solution is y and is more than x, adding acid solution:
the above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides an inorganic heavy metal waste liquid processing apparatus in intelligence laboratory which characterized in that: comprises a comprehensive reaction tank, a precipitation separation device, a pH sensor, a temperature sensor, a dosing pump and an intelligent control system; the pH sensor is arranged in the comprehensive reaction tank, the temperature sensor is arranged outside the comprehensive reaction tank, and the readings of the pH sensor and the temperature sensor are displayed on a computer through an intelligent control system; the dosing pump is connected with the comprehensive reaction tank through a pipeline, the precipitation separation device is connected with the comprehensive reaction tank through a pipeline, and the intelligent control system is connected with the whole waste liquid treatment device through an Ethernet.
2. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: the comprehensive reaction tank comprises an upper part, a middle part and a bottom part; the upper part of the comprehensive reaction tank is connected with a waste liquid dumping hopper through a pipeline; the dosing pump comprises a dosing metering pump and a peristaltic dosing pump, the dosing metering pump and the peristaltic dosing pump are respectively connected with a first medicine storage box and a second medicine storage box through pipelines, and dosing ports are formed in the tops of the first medicine storage box and the second medicine storage box.
3. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: the upper part and the bottom of the comprehensive reaction tank are connected through a pipeline; synthesize the top in reaction tank and install agitator motor, agitator motor includes motor and puddler, the puddler stretches into and synthesizes reaction tank middle part.
4. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: the precipitation separation device comprises an upper portion and a bottom portion, a pp bag assembly is arranged in the upper portion of the precipitation separation device, a pressure sensor is mounted at the top of the precipitation separation device, and reading of the pressure sensor is displayed on a computer through an intelligent control system.
5. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: the bottom of the comprehensive reaction tank is connected with the precipitation separation device through a pipeline; the precipitation separation device is connected with a clean water tank through a pipeline, and the clean water tank comprises an upper part and a bottom part; a first-stage filter material column, a first-stage adsorption material column, a second-stage adsorption material column, a third-stage adsorption material column, a reverse osmosis membrane column and a conductivity meter are sequentially connected in series between the precipitation separation device and the upper part of the clean water tank; still be connected with the electromagnetic diaphragm booster pump between precipitation separator to the one-level filter media, the electromagnetic diaphragm booster pump passes through the pipeline and is connected with comprehensive reaction tank middle part.
6. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: still be connected with another pipeline between sediment separator to the electromagnetism diaphragm booster pump, another pipeline connects gradually clean water basin bottom and flowmeter.
7. The inorganic heavy metal waste liquid treatment device in intelligence laboratory according to claim 1, characterized in that: a power pump is arranged between the bottom of the comprehensive reaction tank and the precipitation separation device, and a second electromagnetic valve is arranged between the bottom of the comprehensive reaction tank and the power pump; the device comprises a waste liquid pouring hopper, a settling separation device, a clean water tank, a conductivity meter, a waste liquid pouring hopper, a comprehensive reaction tank, a flow meter, a waste liquid pouring hopper, a settling separation device, a diaphragm booster pump, a diaphragm pump, a; synthesize the upper portion, middle part and the bottom of reaction tank, precipitation separation device's upper portion and bottom, level sensor is all installed to the upper portion and the bottom in clean water basin, level sensor reports to the police through intelligent control system.
8. The treatment method of the inorganic heavy metal waste liquid treatment device in the intelligent laboratory according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
liquid feeding: pouring the waste liquid into a waste liquid pouring hopper and controlling the waste liquid to enter a comprehensive reaction tank through a first electromagnetic valve;
and (3) carrying out sectional treatment on the comprehensive reaction tank: starting a stirring motor to stir for 1-3 minutes to enable the waste liquid to be uniform, measuring the pH value through a pH sensor, and selecting a preset treatment scheme by combining the temperature value measured by a temperature sensor and the ion type; the segmentation process comprises the following sub-steps:
(1) adjusting the pH value:
firstly, heavy metal ions are selected and adjusted to a preset optimal pH value according to the types of the ions;
secondly, no heavy metal ions exist, and the pH value is adjusted to the pH value within the range of the emission standard;
thirdly, calculating a first medicament and a second medicament which are respectively required for regulating acid and alkali according to a specific formula through an actual pH value and the amount of waste liquid treated once, controlling a medicine feeding pump by the intelligent control system to pump the required first medicament and the required second medicament into a comprehensive reaction tank, starting a stirring motor, and stirring for 3-6 minutes;
(2) adding treatment agent III
Firstly, heavy metal ions exist, and according to the types of the ions and the maximum value of the residual amount under the optimal pH value, dosing is carried out quantitatively according to the types of the ions by a dosing metering pump of a medicament III, so that free heavy metal ions in the waste liquid become precipitates;
secondly, no heavy metal ions are generated, and no treatment agent III is added;
thirdly, after adding the third medicament, starting a stirring motor, and stirring for 7-9 minutes;
(3) adding the fourth medicament and the fifth medicament,
the two medicaments are added in sequence of adding the medicament IV and then adding the medicament V;
firstly, no heavy metal ions are generated, and no medicament IV or medicament V is required to be added;
secondly, adding a fourth medicament and a fifth medicament quantitatively within the range of the difference value between the theoretical alkali consumption and the actual alkali consumption to enable heavy metal ion precipitates to form large flooding and settle;
thirdly, adding a medicament IV and stirring for 3-5 minutes, adding a medicament V and stirring for 3-5 minutes to settle small precipitates, opening an electromagnetic valve II at the front end of a power pump, starting the power pump to pump liquid in the comprehensive reaction tank into a precipitation separation device until a liquid level sensor at the bottom of the comprehensive reaction tank gives an alarm;
and (3) treating the filtrate: when a liquid level sensor at the middle upper part of the precipitation separation device gives an alarm, the electromagnetic valves a, c and d are opened, the electromagnetic valves b and f are closed, and the electromagnetic diaphragm booster pump is started to enable filtrate to sequentially pass through the primary filter material column, the primary adsorption material column, the secondary adsorption material column, the tertiary adsorption material column and the reverse osmosis membrane column to obtain concentrated solution and clear solution; the concentrated solution returns to the precipitation separation device through a pipeline where the power pump is located, and clear liquid enters the upper part of a clear water tank through a conductivity meter; when the value measured by the pressure sensor is greater than 0.45MPa, the electromagnetic diaphragm booster pump stops pumping, the electromagnetic valve II at the front end of the power pump is closed, and the intelligent control system prompts the PP bag assembly to be taken out, replaced or cleaned;
clear liquid treatment: when a liquid level sensor at the upper part of the clean water tank gives an alarm, the electromagnetic diaphragm booster pump is closed, the electromagnetic valve b is closed, the electromagnetic valve i is opened to discharge, and when the liquid level sensor at the bottom part gives an alarm, the electromagnetic valve i is closed;
adding medicine treatment: the bottom of the outer wall of the medicine storage box is provided with a liquid level sensor, and when the medicine is used up or is at a low liquid level, the liquid level controller gives an alarm; in the charging process, the intelligent control system stops operating;
a cleaning process comprising the sub-steps of:
(1) cleaning a sensor in the comprehensive reaction tank:
after the comprehensive reaction tank is emptied after treatment, closing the electromagnetic valves a, c, f, h and g, opening the electromagnetic valves b, e and f, starting the electromagnetic diaphragm booster pump, flushing for 1-2 minutes, and in the cleaning process, closing the electromagnetic valves below the waste liquid dumping hopper once and not feeding liquid;
(2) cleaning a power pump:
after the system stops running for 2-4 hours, the first electromagnetic valve below the waste liquid dumping hopper is closed and no liquid is fed, the first electromagnetic valves a, c, f, h and g are closed, the second electromagnetic valves b, e and f are opened, the electromagnetic diaphragm booster pump is started, water in the clean water tank is pumped to the middle liquid level sensor of the comprehensive reaction tank to alarm, the stirring motor starts stirring for 1-3 minutes, the second electromagnetic valve at the front end of the power pump is opened, the power pump is started, the water is discharged to the bottom liquid level sensor of the comprehensive reaction tank to alarm, the power pump is stopped, and the stirring motor is stopped.
9. The treatment method of the inorganic heavy metal waste liquid treatment device in the intelligent laboratory according to claim 8, characterized in that: the first medicament is dilute solution of sulfuric acid or hydrochloric acid; the second medicament is sodium hydroxide aqueous solution, potassium hydroxide aqueous solution or lime water; the third reagent is a self-made heavy metal trapping agent, the fourth reagent is a coagulant, and the fifth reagent is a flocculating agent.
10. The treatment method of the inorganic heavy metal waste liquid treatment device in the intelligent laboratory according to claim 9, characterized in that: the specific formula is:
s1, when the target pH value is x and not more than 7, the formula is as follows:
when the pH value of the stock solution is y and less than x, adding alkaline solution:
when the pH value of the stock solution is y, is more than x and is not more than 7, adding acid solution:
③ when the pH value of the stock solution is y and is more than 7, adding acid solution:
s2, when the target pH value is x and is more than 7, the formula is as follows:
when the pH value of the stock solution is y and is less than 7, adding alkaline solution:
when the pH value of the stock solution is y and is more than 7 and not more than x, adding an alkali solution:
③ when the pH value of the stock solution is y and is more than x, adding acid solution:
in the formula, VAcid(s)、VAlkali、a1、a2And V0Respectively the theoretical acid dosage (L), the theoretical alkali dosage (L), the quantity concentration (mol/L) of the alkaline drug substance, the quantity concentration (mol/L) of the acid drug substance and the stock solution volume (L), and the ∑ V isAlkali＝VBase 1+VBase 2+VBase 3+…+VBase nI.e. the sum of each addition of lye.
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| CN202110501667.XA CN113023962B (en) | 2020-08-12 | 2021-05-08 | Intelligent treatment device and treatment method for inorganic heavy metal waste liquid |
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| CN113393349A (en) * | 2021-06-24 | 2021-09-14 | 哈尔滨医科大学 | Intelligent management system for laboratory personnel safety training and reagent management |
| CN114291923A (en) * | 2021-08-26 | 2022-04-08 | 成都唐氏康宁科技发展有限公司 | Wastewater and sewage treatment system of full-automatic operation laboratory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116253422A (en) * | 2023-03-30 | 2023-06-13 | 南京源泉环保科技股份有限公司 | Zinc-nickel alloy wastewater treatment and recovery device |
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| CN104229958B (en) * | 2014-08-13 | 2016-06-01 | 上海环保工程成套有限公司 | A kind of fully-automatic intelligent medicine system |
| CN104787986B (en) * | 2015-04-27 | 2016-06-22 | 绍兴立源科技信息有限公司 | A kind of removable intelligent water trcatment device and method thereof |
| KR102089278B1 (en) * | 2017-11-30 | 2020-04-28 | 최성필 | A water-purifying treatment device with renewable energy generation plant and using waste glass and artificial filter medium Manufactured by Method |
| CN207862060U (en) * | 2018-01-06 | 2018-09-14 | 苏州精顺医用净化工程有限公司 | A kind of laboratory integration liquid waste treatment system |
| CN110937643A (en) * | 2019-11-26 | 2020-03-31 | 广东莞绿环保工程有限公司 | System for intelligently controlling dosage in heavy metal-containing wastewater treatment |
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| CN113393349A (en) * | 2021-06-24 | 2021-09-14 | 哈尔滨医科大学 | Intelligent management system for laboratory personnel safety training and reagent management |
| CN114291923A (en) * | 2021-08-26 | 2022-04-08 | 成都唐氏康宁科技发展有限公司 | Wastewater and sewage treatment system of full-automatic operation laboratory |
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