CN211595297U - Laboratory heavy metal wastewater's processing system - Google Patents
Laboratory heavy metal wastewater's processing system Download PDFInfo
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- CN211595297U CN211595297U CN202020105905.6U CN202020105905U CN211595297U CN 211595297 U CN211595297 U CN 211595297U CN 202020105905 U CN202020105905 U CN 202020105905U CN 211595297 U CN211595297 U CN 211595297U
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Abstract
The utility model discloses a laboratory heavy metal wastewater's processing system, including waste water collecting tank, electric pump, chitosan-filter, resin-filter, heavy metal detector, qualified water electric valve, unqualified water electric valve, controller. The waste water collecting box is communicated with the chitosan-filter through a waste water pipe, the electric pump is arranged on the waste water pipe, the chitosan-filter is communicated with the resin-filter through a connecting pipe, the resin-filter is communicated with a qualified water pipe, the heavy metal detector and the qualified water electric valve are arranged on the qualified water pipe, the heavy metal detector is positioned between the resin-filter and the qualified water electric valve, the waste water pipe is communicated with the qualified water pipe through an unqualified water pipe, and the heavy metal detector, the qualified water electric valve and the unqualified water electric valve are all in communication connection with the controller. The system has the advantages of good heavy metal treatment effect, high efficiency, complete feedback mechanism and high fault tolerance rate, and ensures that the treated wastewater can reach the preset qualified value of the heavy metal content.
Description
Technical Field
The utility model relates to a laboratory waste water treatment field especially relates to a laboratory heavy metal wastewater's processing system.
Background
In the quality monitoring of food and medicine, heavy metal detection is indispensable, especially for some food and medicine, such as liver, traditional Chinese medicine, cosmetics, etc., whose heavy metal content is easy to exceed standard. The heavy metal detection usually adopts atomic absorption spectrometry or inductively coupled plasma atomic emission spectrometry, and the detected detection liquid and standard liquid are usually directly discharged into an underground sewage pipe network without treatment or simple treatment due to small amount, and are sent to a domestic sewage treatment plant for centralized treatment. Because treatment equipment of a domestic sewage treatment plant cannot treat the heavy metal wastewater in the laboratory, the discharged water still contains a large amount of heavy metals, and the heavy metals finally flow into rivers or permeate into the ground and enter water sources or soil, so that the water resources and the soil are seriously polluted. Therefore, it is desirable to provide a treatment system for heavy metal wastewater in a laboratory, which solves the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a laboratory heavy metal wastewater's processing system to solve the problem of the processing and the emission of laboratory heavy metal wastewater.
The utility model provides a laboratory heavy metal wastewater's processing system, including waste water collecting tank, electric pump, chitosan-filter, resin-filter, heavy metal detector, qualified water electric valve, unqualified water electric valve, controller, it has the chitosan packing layer to fill in the chitosan-filter, and it has the resin packing layer to fill in the resin-filter, wherein: the water outlet of the waste water collecting box is communicated with the water inlet of the chitosan-filter through a waste water pipe, the electric pump is arranged on the waste water pipe, the water outlet of the chitosan-filter is communicated with the water inlet of the resin-filter through a connecting pipe, the water outlet of the resin-filter is communicated with a qualified water pipe, the heavy metal detector and the qualified water electric valve are both arranged on the qualified water pipe, the heavy metal detector is positioned between the resin-filter and the qualified water electric valve, the waste water pipe is communicated with the qualified water pipe through an unqualified water pipe, the water inlet of the unqualified water pipe is arranged between the heavy metal detector and the qualified water electric valve, the water outlet of the unqualified; the heavy metal detector is in communication connection with the signal input end of the controller, and the qualified water electric valve and the unqualified water electric valve are in communication connection with the signal output end of the controller.
Optionally, the qualified water pipe is further provided with a pH automatic controller, and the pH automatic controller is located on the drainage side of the qualified water electric valve.
Optionally, an electric float level meter is arranged in the wastewater collection tank.
Optionally, the water inlet of the chitosan-filter is higher than the water outlet and the chitosan filler layer, and the water inlet of the resin-filter is higher than the water outlet and the resin filler layer.
Optionally, the resin filler layer comprises a chelating resin filler layer and an adsorbing resin filler layer, wherein: the chelating resin filler layer and the adsorption resin filler layer are arranged from top to bottom, and the water outlet of the resin-filter is lower than the chelating resin filler layer.
Optionally, the controller is a programmable logic controller.
The utility model discloses following beneficial effect has:
the laboratory heavy metal wastewater subjected to heavy metal detection firstly enters a chitosan-filter, amino groups and adjacent hydroxyl groups in chitosan molecules as fillers can form chelates with heavy metal ions, then enters a resin-filter to further chelate and adsorb the heavy metal ions which are not completely treated, the waste liquid after special treatment is discharged if the waste liquid can reach the qualified standard after detection, and returns to the chitosan-filter for repeated treatment if the waste liquid cannot reach the qualified value. On one hand, the treatment system for the heavy metal wastewater in the laboratory has good heavy metal treatment effect and high efficiency; on the other hand, the treatment system for the heavy metal wastewater in the laboratory has a complete feedback mechanism and high fault tolerance rate, and ensures that the treated wastewater can reach a preset qualified value of the heavy metal content.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to these drawings without any creative effort.
FIG. 1 is a schematic structural diagram of a laboratory heavy metal wastewater treatment system provided by the present invention;
fig. 2 is a schematic structural diagram of a resin filter according to the present invention.
The reference numerals in fig. 1-2 denote: comprises 1-a wastewater collection box; 2-electric pump, 3-chitosan-filter, 4-resin-filter, 5-heavy metal detector, 6-qualified water electric valve, 7-unqualified water electric valve, 8-controller, 9-wastewater pipe, 10-connecting pipe, 11-qualified water pipe, 12-unqualified water pipe, 13-pH automatic controller, 41-chelating resin packing layer and 42-adsorption resin packing layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a laboratory heavy metal wastewater's processing system, including waste water collecting box 1, electric pump 2, chitosan-filter 3, resin-filter 4, heavy metal detector 5, qualified water electric valve 6, unqualified water electric valve 7, controller 8. Wherein, the chitosan-filter 3 is filled with a chitosan filler layer, and the resin-filter 4 is filled with a resin filler layer. The water outlet of the waste water collecting box 1 is communicated with the water inlet of the chitosan-filter 3 through a waste water pipe 9, the electric pump 2 is arranged on the waste water pipe 9, the water outlet of the chitosan-filter 3 is communicated with the water inlet of the resin-filter 4 through a connecting pipe 10, the water outlet of the resin-filter 4 is communicated with a qualified water pipe 11, the heavy metal detector 5 and the qualified water electric valve 6 are both arranged on the qualified water pipe 11, the heavy metal detector 5 is positioned between the resin-filter 4 and the qualified water electric valve 6, the waste water pipe 9 is communicated with the qualified water pipe 11 through an unqualified water pipe 12, the water inlet of the unqualified water pipe 12 is arranged between the heavy metal detector 5 and the qualified water electric valve 6, the water outlet of the unqualified water pipe 12 is arranged; the heavy metal detector 5 is in communication connection with a signal input end of the controller 8, and the qualified water electric valve 6 and the unqualified water electric valve 7 are in communication connection with a signal output end of the controller 8.
The utility model provides a laboratory heavy metal wastewater's processing system's theory of operation, switch on, this processing system. The qualified value of the heavy metal to be detected by the heavy metal detector 5 is set, and the controller 8 receives the set qualified value. Under the action of the electric pump 2, wastewater enters the chitosan-filter 3 from the wastewater collection box 1 through the wastewater pipe 9, amino groups and adjacent hydroxyl groups in chitosan molecules as fillers can form chelates with heavy metal ions, the obtained first treatment liquid enters the resin-filter 4 through the connecting pipe 10 to further chelate and adsorb the heavy metal ions which are not completely treated, and a second treatment liquid is obtained. And the second treatment liquid enters a qualified water pipe 11, is detected by a heavy metal detector 5, if the detection value is less than or equal to the set qualified value, the controller 8 starts the qualified water electric valve 6, the second treatment liquid is discharged through the qualified water pipe 11, if the detection value is greater than the set qualified value, the controller 8 starts the unqualified water electric valve 7, and the second treatment liquid enters an unqualified water pipe 12, returns to the wastewater pipe 9 for waiting treatment again and is discharged until qualified.
According to the daily processing procedure in laboratory to the heavy metal waste liquid that has been detected through atomic absorption spectroscopy is the example, provides following embodiment 1, and is right the utility model provides a processing system of laboratory heavy metal waste water explains in detail.
Example 1
As shown in fig. 1, the system for treating heavy metal wastewater in a laboratory provided in this embodiment 1 includes a wastewater collection tank 1, an electric pump 2, a chitosan-filter 3, a resin-filter 4, a heavy metal detector 5, a qualified water electric valve 6, a unqualified water electric valve 7, and a controller 8. The chitosan-filter 3 is filled with a chitosan filler layer, the resin-filter 4 is filled with a resin filler layer, and the chitosan-filter 3 and the resin-filter 4 can adopt common water treatment filters to replace the fillers. Or a filter flask with an upper connecting port and a lower connecting port can be used, the upper connecting port is used as a water inlet, the lower connecting port is used as a water outlet, and corresponding chitosan or resin filler is added into the filter flask. The water inlets of the chitosan-filter 3 and the resin-filter 4 are respectively higher than the water outlet and the chitosan filler layer. The heavy metal detector 5 adopts a G20 optical fiber heavy metal water quality detector (Shanghai Hengelectromechanics instrument, Inc.). The controller 8 is a programmable logic controller and can adopt an S7-1200 series PLC modular controller (Siemens communication).
The water outlet of the waste water collecting box 1 is communicated with the water inlet of the chitosan-filter 3 through a waste water pipe 9, the electric pump 2 is arranged on the waste water pipe 9, the water outlet of the chitosan-filter 3 is communicated with the water inlet of the resin-filter 4 through a connecting pipe 10, the water outlet of the resin-filter 4 is communicated with a qualified water pipe 11, the heavy metal detector 5 and the qualified water electric valve 6 are both arranged on the qualified water pipe 11, the heavy metal detector 5 is positioned between the resin-filter 4 and the qualified water electric valve 6, the waste water pipe 9 is communicated with the qualified water pipe 11 through an unqualified water pipe 12, the water inlet of the unqualified water pipe 12 is arranged between the heavy metal detector 5 and the qualified water electric valve 6, the water outlet of the unqualified water pipe 12 is arranged; the heavy metal detector 5 is in communication connection with a signal input end of the controller 8, and the qualified water electric valve 6 and the unqualified water electric valve 7 are in communication connection with a signal output end of the controller 8.
And the qualified water pipe 11 is also provided with a pH automatic controller 13, and the pH automatic controller 13 is positioned at the drainage side of the qualified water electric valve 6. Because the detection sample is usually digested by nitric acid, the wastewater contains a large amount of acid, and if alkali liquor is added into the wastewater collection box 1 for neutralization, the pH automatic controller 13 can be omitted. The pH automatic controller 13 is an MC-ACPH-30A type pH automatic controller (Beijing Daokan technologies Co., Ltd.).
In order to monitor the liquid level of the wastewater collection box 1, an electric floating ball liquid level meter is arranged in the wastewater collection box 1. The signal input end of the controller 8 is connected with the electric floating ball liquid level meter, and the signal output end is connected with the electric pump 2. When the set liquid level value is reached, the controller 8 automatically starts the electric pump 2 to treat the wastewater.
In order to improve the efficiency of the resin-filter 4 in removing heavy metals, as shown in fig. 2, the resin filler layer includes a chelate resin filler layer 41 and an adsorption resin filler layer 42, the chelate resin filler layer 41 and the adsorption resin filler layer 42 are arranged from top to bottom, and the water outlet of the resin-filter 4 is lower than the chelate resin filler layer 41. Wherein: the chelating resin filler layer 41 is used for chelating the heavy metal ions remaining in the first treatment solution, and the adsorption resin filler layer 42 is used for adsorbing and filtering out heavy metal chelates.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (6)
1. The utility model provides a laboratory heavy metal wastewater's processing system, its characterized in that, includes waste water collection box (1), electric pump (2), chitosan-filter (3), resin-filter (4), heavy metal detector (5), qualified water electric valve (6), unqualified water electric valve (7), controller (8), it has the chitosan packing layer to fill in chitosan-filter (3), it has the resin packing layer to fill in resin-filter (4), wherein:
the outlet of wastewater collection box (1) is communicated with the water inlet of chitosan-filter (3) through wastewater pipe (9), electric pump (2) is arranged on the wastewater pipe (9), the outlet of chitosan-filter (3) is communicated with the water inlet of resin-filter (4) through connecting pipe (10), the outlet of resin-filter (4) is communicated with qualified water pipe (11), heavy metal detector (5) and qualified water electric valve (6) are both arranged on qualified water pipe (11), heavy metal detector (5) is positioned between resin-filter (4) and qualified water electric valve (6), wastewater pipe (9) and qualified water pipe (11) are communicated through unqualified water pipe (12), the water inlet of unqualified water pipe (12) is arranged between heavy metal detector (5) and qualified water electric valve (6), the water outlet of the unqualified water pipe (12) is arranged between the wastewater collection box (1) and the electric pump (2), and the unqualified water electric valve (7) is arranged on the unqualified water pipe (12); heavy metal detector (5) communication connection the signal input part of controller (8), equal communication connection of qualified water electric valve (6) and unqualified water electric valve (7) the signal output part of controller (8).
2. The laboratory heavy metal wastewater treatment system according to claim 1, wherein the qualified water pipe (11) is further provided with an automatic pH controller (13), and the automatic pH controller (13) is positioned on the drainage side of the qualified water electric valve (6).
3. The laboratory heavy metal wastewater treatment system according to claim 1, wherein an electric floating ball liquid level meter is arranged in the wastewater collection tank (1).
4. The laboratory heavy metal wastewater treatment system according to claim 1, wherein the water inlet of the chitosan-filter (3) is higher than the water outlet and the chitosan packing layer, and the water inlet of the resin-filter (4) is higher than the water outlet and the resin packing layer.
5. The laboratory heavy metal wastewater treatment system according to claim 1, wherein the resin packing layer comprises a chelate resin packing layer (41) and an adsorption resin packing layer (42), wherein: the chelating resin filler layer and the adsorption resin filler layer are arranged from top to bottom, and the water outlet of the resin-filter (4) is lower than the chelating resin filler layer (41).
6. The laboratory heavy metal wastewater treatment system according to any one of claims 1 to 5, wherein the controller (8) is a programmable logic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105905.6U CN211595297U (en) | 2020-01-17 | 2020-01-17 | Laboratory heavy metal wastewater's processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105905.6U CN211595297U (en) | 2020-01-17 | 2020-01-17 | Laboratory heavy metal wastewater's processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211595297U true CN211595297U (en) | 2020-09-29 |
Family
ID=72579275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020105905.6U Expired - Fee Related CN211595297U (en) | 2020-01-17 | 2020-01-17 | Laboratory heavy metal wastewater's processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211595297U (en) |
-
2020
- 2020-01-17 CN CN202020105905.6U patent/CN211595297U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20220117 |