CN218454135U - Laboratory wastewater treatment system - Google Patents
Laboratory wastewater treatment system Download PDFInfo
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- CN218454135U CN218454135U CN202222790724.3U CN202222790724U CN218454135U CN 218454135 U CN218454135 U CN 218454135U CN 202222790724 U CN202222790724 U CN 202222790724U CN 218454135 U CN218454135 U CN 218454135U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a stable automatic dosing system of a waste gas treatment device, which comprises a collecting box, a lift pump, an integrated reaction tank, a concentrated water tank, a circulating pump, a filtering device and a pool to be discharged, wherein the inlet of the collecting box is connected with a pipeline for sewage of a laboratory cleaning instrument, and the outlet of the collecting box is connected with the inlet of the integrated reaction tank through the lift pump; the outlet of the integrated reaction tank is connected with the inlet of the concentrated water tank; the outlet of the concentrated water tank is connected with the inlet of the filtering device through a circulating pump, and the sludge in the concentrated water tank is finally treated as hazardous waste; a fresh water outlet of the filtering device is connected with an inlet of the pool to be drained, and a concentrated water outlet is connected with an inlet of the concentrated water tank; the outlet of the tank to be drained is divided into two paths, one path is directly drained to a sewer, and the other path is connected with the inlet of the collecting box. The utility model discloses degree of automation is high, and simple process mainly can get rid of cyanide and heavy metal ion in the waste water, and the treatment effect is good and with low costs.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to laboratory wastewater treatment system is particularly useful for engaging in the laboratory waste water of electroplating effluent research.
Background
Laboratory waste water includes experimental process waste liquid, instrument cleaning waste water, cooling return water, water purification machine produce dense water etc. has produce source dispersion, composition characteristics such as complicated, the variety is various, but because still lack concrete standard and corresponding treatment measure to laboratory waste water discharge at present, most laboratory wastes do not strictly classify and collect and directly discharge into the sewer along with laboratory waste water, go into municipal sewage pipe network behind untreated or simple domestic sewage treatment system. The wastewater is diversified, has complex and changeable components, contains toxic chemical substances, organic compounds, heavy metals, bacteria and the like, and can cause serious harm to the ecological environment without being effectively treated.
In conclusion, the source control and the classified collection and disposal of the laboratory waste liquid are required to be performed on the laboratory waste water. Waste liquid in the experimental process, waste water generated in the instrument cleaning process and the like are discharged in a shunting manner with domestic sewage, and are collected and then treated in a centralized manner.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laboratory effluent disposal system, this system are used for categorised collection laboratory waste water and carry out the centralized processing, mainly can get rid of cyanide and heavy metal ion in the waste water, and final water can reach standard CJ 343-2010 "town sewer water quality standard" A level is discharged to sewage.
In order to achieve the purpose, the utility model adopts the technical proposal that: a laboratory wastewater treatment system comprises a collection box, a lift pump, an integrated reaction tank, a concentrated water tank, a circulating pump, a filtering device and a tank to be drained, wherein an inlet of the collection box is connected with a pipeline for sewage of a laboratory cleaning instrument, and an outlet of the collection box is connected with an inlet of the integrated reaction tank through the lift pump; the outlet of the integrated reaction tank is connected with the inlet of the concentrated water tank; the outlet of the concentration water tank is connected with the inlet of the filtering device through a circulating pump; a fresh water outlet of the filtering device is connected with an inlet of the to-be-discharged pool, and a concentrated water outlet of the filtering device is connected with an inlet of the concentrated water tank; the outlet of the tank to be drained is divided into two paths, one path is directly drained to a sewer, and the other path is connected with the inlet of the collecting box.
As a further optimization of the scheme, the lifting pump adopts a submersible pump with a floating ball liquid level control switch, the lifting pump is installed in the collecting box, the operation and the closing of the lifting pump are controlled by the liquid level of the collecting box, the operation at a high liquid level is realized, and the operation at a low liquid level is realized.
As a further preferred option of this scheme, the integration reaction tank is including the first order broken cyanogen pond that sets gradually, second order broken cyanogen pond, reduction reaction pond, PH equalizing basin, and wherein first order broken cyanogen pond, second order broken cyanogen pond, reduction reaction pond, PH equalizing basin communicate each other through the exit that sets up from top to bottom in turn.
As a further preferable scheme, compressed air is introduced into each of the first-stage cyanogen breaking pool, the second-stage cyanogen breaking pool, the reduction reaction pool and the PH adjusting pool for aeration stirring.
As a further preferable mode of the scheme, the PH value of the first-stage cyanogen-breaking tank is adjusted to 10-11 by adding medicament alkali, the ORP of the first-stage cyanogen-breaking tank is adjusted to 300-350 by adding oxidant, the PH value of the second-stage cyanogen-breaking tank is adjusted to 6.5-7 by adding medicament acid, the ORP of the second-stage cyanogen-breaking tank is adjusted to 600-700 by adding oxidant, the PH value of the reduction reaction tank is adjusted to 2.5-3 by adding medicament acid, the ORP of the reduction reaction tank is adjusted to 300-350 by adding reducing agent, and the PH meter and the ORP meter are arranged in the first-stage cyanogen-breaking tank, the second-stage cyanogen-breaking tank and the reduction reaction tank to control the dosage of the medicament.
As a further preferable preference of the scheme, the PH is adjusted to 9-10 by adding medicament alkali into the PH adjusting tank, and the dosage of the PH metering and controlling medicament is arranged in the tank.
As a further optimization of the scheme, a liquid level control system is arranged in the concentrated water tank and used for controlling the starting and stopping of the circulating pump, the circulating pump is started when the liquid level of the concentrated water tank is high, and the circulating pump stops running when the liquid level of the concentrated water tank is low.
As a further preferred aspect of the present invention, the wastewater in the concentrated water tank is sent to the filtering device by the circulating pump for circulating treatment, and the sludge in the concentrated water tank is concentrated to a certain concentration and then treated as hazardous waste.
As a further preferred aspect of the present invention, the filtration device employs a microfiltration membrane, and the microfiltration membrane is not provided with a cleaning water tank.
As a further optimization of the scheme, the PH value in the belt discharging pool is adjusted to 6.5-9 by adding medicament acid, and the dosage of the PH metering and controlling medicament is arranged in the pool.
The utility model has the advantages as follows:
(1) The system has high automation degree, simple process, good treatment effect and low cost, can remove cyanide and heavy metal ions in wastewater
(2) The outlet of the to-be-discharged pool can return unqualified water to the collecting box for treatment again, so that the discharged water is ensured to be discharged after reaching the standard.
(3) Waste water in a laboratory is collected in a classified mode and is treated in a centralized mode, and the phenomenon that the waste water is directly discharged into a sewer to cause harm to the ecological environment is avoided.
(4) Adopt the immersible pump of taking floater water level control switch and the reaction tank of integration, can save space, let in compressed air in the integration reaction tank and carry out the aeration stirring, can effectively strengthen the medicament in each cell body and dissolve.
(5) The filtering device adopts a microfiltration membrane, can block the permeation of suspended solids, bacteria, partial viruses and large-scale colloids, is not easy to cause serious corrosion and scaling of equipment and pipelines, simultaneously, a concentrated water outlet of the filtering device is connected with an inlet of a concentrated water tank, wastewater is circularly treated in the filtering device, a sedimentation tank and a plurality of medium filtering links, such as sand filtering, carbon filtering, ultrafiltration and the like can be omitted, and the process is simple.
(6) Compared with other methods, the method for treating the wastewater by using the microfiltration membrane does not need to add special water treatment agents, has small occupied area, simple and convenient operation, stable and reliable system operation, easy control and maintenance and high treatment efficiency.
(7) Because the amount of wastewater in a laboratory is small, the microfiltration membrane is not provided with a cleaning water tank, and the microfiltration membrane can be cleaned by replacing the function of the cleaning water tank after the concentrated water tank is cleaned, so that the aims of reducing space and economic cost are fulfilled. The inlet and outlet of the concentrated water tank are connected by loose joints, so that the concentrated water tank is convenient to disassemble and assemble.
(8) The PH meter and the ORP meter arranged in the pool body control the dosage of the pharmaceutical agent, a liquid level control system is arranged in the concentrated water tank, and a submersible pump with a floating ball liquid level control switch is arranged in the collection tank, so that the automatic operation of the wastewater treatment system can be realized.
Drawings
FIG. 1 is a process flow diagram of a laboratory wastewater treatment system of the present invention.
Labeled as: 1-a collection box, 2-a lift pump, 3-an integrated reaction tank, 3 a-a first-stage cyanogen breaking tank, 3 b-a second-stage cyanogen breaking tank, 3 c-a reduction reaction tank, 3d PH regulating tank, 4-a concentration water tank, 5-a circulating pump, 6-a filtering device and 7-a to-be-discharged tank.
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.
As shown in fig. 1, a laboratory wastewater treatment system comprises a collection box 1, a lift pump 2, an integrated reaction tank 3, a concentrated water tank 4, a circulating pump 5, a filtering device 6 and a to-be-discharged tank 7, wherein an inlet of the collection box 1 is connected with a pipeline for sewage of a laboratory cleaning instrument, and an outlet of the collection box 1 is connected with an inlet of the integrated reaction tank 3 through the lift pump 2; the outlet of the integrated reaction tank 3 is connected with the inlet of the concentrated water tank 4; an outlet of the concentrated water tank 4 is connected with an inlet of the filtering device 6 through a circulating pump 5, and sludge in the concentrated water tank 4 is finally disposed as hazardous waste; a fresh water outlet of the filtering device 6 is connected with an inlet of the to-be-discharged pool 7, and a concentrated water outlet is connected with an inlet of the concentrated water tank 4; the outlet of the to-be-discharged pool 7 is divided into two paths, one path is directly discharged to a sewer, and the other path is connected with the inlet of the collecting box 1.
The collecting box 1 only collects cleaning water of an experimental instrument, test cooling return water and concentrated water of a water purifier are directly discharged into a sewer, waste liquid in the experimental process is collected and then treated as hazardous waste, and the purpose of classified collection is achieved.
The lifting pump 2 adopts a submersible pump with a floating ball water level control switch, is arranged in the water tank, and operates and closes the water level controlled by the collecting tank, operates at a high liquid level and closes at a low liquid level.
The integrated reaction tank 3 consists of a first-stage cyanogen breaking tank 3a, a second-stage cyanogen breaking tank 3b, a reduction reaction tank 3c and a pH adjusting tank 3d, compressed air is introduced into each tank body for aeration stirring, and the first-stage cyanogen breaking tank 3a, the second-stage cyanogen breaking tank 3b, the reduction reaction tank 3c and the pH adjusting tank 3d are communicated with one another through an inlet and an outlet which are alternately arranged from top to bottom.
And adding a medicament alkali into the first-stage cyanogen breaking tank 3a to adjust the PH to 10-11, adding an oxidant to adjust the ORP to 300-350, and setting a PH meter and an ORP meter to control the adding amount of the medicament.
And adding medicament acid into the secondary cyanogen breaking tank 3b to adjust the PH to 6.5-7, adding oxidant to adjust the ORP to 600-700, and setting a PH meter and an ORP meter to control the adding amount of the medicament.
And adding medicament acid into the reduction reaction tank 3c to adjust the pH to 2.5-3, adding a reducing agent to adjust the ORP to 300-350, and setting a pH meter and an ORP meter to control the adding amount of the medicament.
And adding medicament alkali into the pH adjusting tank 3d to adjust the pH to 9-10, and setting the dosage of the pH meter control medicament.
A liquid level control system is arranged in the concentrated water tank and used for controlling the starting and stopping of the circulating pump, the circulating pump is started when the liquid level of the concentrated water tank is high, and the circulating pump stops running when the liquid level of the concentrated water tank is low. The inlet and the outlet of the concentrated water tank adopt a loose joint connection mode, so that the concentrated water tank is convenient to disassemble and assemble.
The filter device adopts a microfiltration membrane, the microfiltration membrane is not provided with a cleaning water tank, and when the filter device needs cleaning, the concentrated water tank can be cleaned up and the function of cleaning the water tank can be replaced temporarily.
And adding medicament acid into the strip discharging pool to adjust the pH value to 6.5-9, and setting a pH meter.
The process flow of the laboratory wastewater treatment system is as follows: after being collected by a sewage collection box 1, cleaning water of a laboratory instrument is pumped into an integrated reaction tank 3 by a lifting pump 2 for oxidation reduction treatment, the treated water enters a concentrated water tank 4, and then is pumped into a filtering device 6 by a circulating pump 5 for circulating filtration, finally sludge in the concentrated water tank 4 is treated as hazardous waste, and water produced by the filtering device 6 reaches the grade A of CJ 343-2010 discharge of sewage into urban sewer Water quality Standard and then is discharged into a sewer.
To sum up, the utility model discloses treat that the export in row pond can be handled unqualified water backward flow to the collecting box again, ensures that the effluent discharge to reach standard. Through the waste water of categorised collection laboratory and carry out centralized processing, avoid waste water directly to discharge into the sewer, cause the harm to the ecological environment. The submersible pump with the floating ball water level control switch and the integrated reaction tank are adopted, so that the space can be saved, compressed air is introduced into the integrated reaction tank for aeration and stirring, and the dissolution of medicaments in each tank body can be effectively enhanced. The filtering device adopts a microfiltration membrane, so that the device and the pipeline are not easy to be seriously corroded and scaled, and simultaneously links such as a sedimentation tank, multi-medium filtration, sand filtration, carbon filtration, ultrafiltration and the like can be saved, and the process is simple. Compared with other methods, the method for treating the wastewater by using the microfiltration membrane does not need to add special water treatment agents, has small occupied area, simple and convenient operation, stable and reliable system operation, easy control and maintenance and high treatment efficiency. Because the amount of wastewater in a laboratory is small, the microfiltration membrane is not provided with a cleaning water tank, and the microfiltration membrane can be cleaned by replacing the function of the cleaning water tank after the cleaning of the concentration water tank, so that the aims of reducing space and economic cost are fulfilled. The inlet and the outlet of the concentrated water tank are connected by adopting loose joints, so that the concentrated water tank is convenient to disassemble and assemble. The PH meter and the ORP meter arranged in the pool body control the dosage of the pharmaceutical agent, a liquid level control system is arranged in the concentrated water tank, and a submersible pump with a floating ball liquid level control switch is arranged in the collection tank, so that the automatic operation of the wastewater treatment system can be realized.
The foregoing illustrates and describes the general principles, features and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (10)
1. A laboratory wastewater treatment system is characterized by comprising a collection box (1), a lift pump (2), an integrated reaction tank (3), a concentrated water tank (4), a circulating pump (5), a filtering device (6) and a tank to be drained (7), wherein an inlet of the collection box (1) is connected with a pipeline for sewage of a laboratory cleaning instrument, and an outlet of the collection box (1) is connected with an inlet of the integrated reaction tank (3) through the lift pump (2); the outlet of the integrated reaction tank (3) is connected with the inlet of the concentrated water tank (4); the outlet of the concentrated water tank (4) is connected with the inlet of the filtering device (6) through a circulating pump (5); a fresh water outlet of the filtering device (6) is connected with an inlet of the to-be-discharged pool (7), and a concentrated water outlet is connected with an inlet of the concentrated water tank (4); the outlet of the pool (7) to be discharged is divided into two paths, one path is directly discharged to a sewer, and the other path is connected with the inlet of the collecting box (1).
2. Laboratory wastewater treatment system according to claim 1, characterized in that the lift pump (2) is a submersible pump with a float level control switch, the lift pump (2) is mounted in the collection tank (1), the operation and shutdown of the lift pump (2) is controlled by the liquid level of the collection tank (1), the high liquid level operation, and the low liquid level shutdown.
3. The laboratory wastewater treatment system according to claim 1, wherein the integrated reaction tank (3) comprises a primary cyanogen breaking tank (3 a), a secondary cyanogen breaking tank (3 b), a reduction reaction tank (3 c) and a PH regulation tank (3 d) which are arranged in sequence, wherein the primary cyanogen breaking tank (3 a), the secondary cyanogen breaking tank (3 b), the reduction reaction tank (3 c) and the PH regulation tank (3 d) are communicated with each other through an inlet and an outlet which are alternately arranged up and down.
4. The laboratory wastewater treatment system according to claim 3, wherein compressed air is introduced into each of the primary cyanogen breaking tank (3 a), the secondary cyanogen breaking tank (3 b), the reduction reaction tank (3 c) and the pH adjusting tank (3 d) for aeration and stirring.
5. The laboratory wastewater treatment system according to claim 3, wherein the pH of the primary cyanogen-breaking tank (3 a) is adjusted to 10-11 by adding medicament alkali, the ORP of the primary cyanogen-breaking tank is adjusted to 300-350 by adding oxidant, the pH of the secondary cyanogen-breaking tank (3 b) is adjusted to 6.5-7 by adding medicament acid, the ORP of the secondary cyanogen-breaking tank is adjusted to 600-700 by adding oxidant, the pH of the reduction reaction tank (3 c) is adjusted to 2.5-3 by adding medicament acid, and the ORP of the secondary cyanogen-breaking tank is adjusted to 300-350 by adding reductant, and a pH meter and an ORP meter are arranged in each of the primary cyanogen-breaking tank (3 a), the secondary cyanogen-breaking tank (3 b) and the reduction reaction tank (3 c) for controlling the dosage of medicament.
6. The laboratory wastewater treatment system according to claim 3, wherein the pH adjusting tank (3 d) is filled with a chemical alkali to adjust the pH to 9-10, and a pH meter is arranged in the tank to control the dosage of the chemical agent.
7. The laboratory wastewater treatment system according to claim 1, wherein a liquid level control system is arranged in the concentrated water tank (4) to control the start and stop of the circulating pump, the circulating pump is started when the liquid level of the concentrated water tank (4) is high, and the circulating pump is stopped when the liquid level is low.
8. The laboratory wastewater treatment system according to claim 1, wherein the wastewater in the concentrating water tank (4) is sent to the filtering device (6) for cyclic treatment through the circulating pump (5), and the sludge in the concentrating water tank (4) is concentrated to a certain concentration and then is treated as hazardous waste.
9. A laboratory wastewater treatment system according to claim 1, characterized in that said filtration means (6) employs a microfiltration membrane, and that said microfiltration membrane is not provided with a purge water tank.
10. The laboratory wastewater treatment system according to claim 1, wherein the pH value of the to-be-discharged tank (7) is adjusted to 6.5-9 by adding medicament acid, and the dosage of the pH metering and controlling medicament is arranged in the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222790724.3U CN218454135U (en) | 2022-10-24 | 2022-10-24 | Laboratory wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222790724.3U CN218454135U (en) | 2022-10-24 | 2022-10-24 | Laboratory wastewater treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN218454135U true CN218454135U (en) | 2023-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222790724.3U Active CN218454135U (en) | 2022-10-24 | 2022-10-24 | Laboratory wastewater treatment system |
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| CN (1) | CN218454135U (en) |
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2022
- 2022-10-24 CN CN202222790724.3U patent/CN218454135U/en active Active
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