CN221275542U - Electrolytic manganese wastewater treatment system - Google Patents
Electrolytic manganese wastewater treatment system Download PDFInfo
- Publication number
- CN221275542U CN221275542U CN202323105641.7U CN202323105641U CN221275542U CN 221275542 U CN221275542 U CN 221275542U CN 202323105641 U CN202323105641 U CN 202323105641U CN 221275542 U CN221275542 U CN 221275542U
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- China
- Prior art keywords
- tank
- pipeline
- adsorption device
- reaction tank
- chromium adsorption
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- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 22
- 239000011572 manganese Substances 0.000 title claims abstract description 22
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 54
- 238000001179 sorption measurement Methods 0.000 claims abstract description 39
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 30
- 239000011651 chromium Substances 0.000 claims abstract description 30
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000004062 sedimentation Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000015271 coagulation Effects 0.000 claims abstract description 20
- 238000005345 coagulation Methods 0.000 claims abstract description 20
- 239000008394 flocculating agent Substances 0.000 claims abstract description 18
- 238000010517 secondary reaction Methods 0.000 claims abstract description 17
- 239000006228 supernatant Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000012492 regenerant Substances 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 239000002699 waste material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000009615 deamination Effects 0.000 description 2
- 238000006481 deamination reaction Methods 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Removal Of Specific Substances (AREA)
Abstract
The utility model discloses an electrolytic manganese wastewater treatment system which comprises a wastewater collection tank, wherein the wastewater collection tank is connected with a filtering device, the filtering device is connected with an adjusting tank, the adjusting tank is connected with a water inlet of a hexavalent chromium adsorption device, a water outlet at the top of the hexavalent chromium adsorption device is connected with a water inlet of a trivalent chromium adsorption device, a water outlet at the top of the trivalent chromium adsorption device is connected with a primary coagulation reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the primary coagulation reaction tank, a stirring device is arranged in the primary coagulation reaction tank, a water outlet of the primary coagulation reaction tank is connected with a primary sedimentation tank, a supernatant outlet pipeline of the primary sedimentation tank is connected with a secondary reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the secondary reaction tank, a water outlet of the secondary reaction tank is connected with a secondary sedimentation tank, and a supernatant outlet of the secondary sedimentation tank is connected with a pH adjusting tank. Chromium is separated first, and then manganese is precipitated, so that chromium can be recycled.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and particularly relates to an electrolytic manganese wastewater treatment system.
Background
The main waste water pollution sources in the electrolytic manganese production industry are passivation waste water, plate washing waste water, workshop floor flushing waste water, filter cloth cleaning waste water, plate frame cleaning waste water, clear tank waste water, slag reservoir leachate, factory surface runoff, electrolytic tank cooling water and the like, and the main pollutants are manganese, hexavalent chromium, a small amount of trivalent chromium, ammonia nitrogen and the like, and generally, the production of one ton of products is accompanied with the production of process waste water with the discharge of 10-25m 3, the discharge of cooling water is 150-300m 3, and the waste water has more suspended matters and large chromaticity and is discharged into the external environment, so that serious threats are caused to human health and ecological environment.
The existing treatment process is to remove manganese and chromium pollutants in wastewater in a neutralization precipitation mode, a large amount of Fe (OH) 3 and CaSO 4 precipitates are generated in the treatment process at the same time, the amount of waste residues is large, and the waste residues are classified as dangerous solid wastes due to the existence of chromium pollutants in the waste residues, so that harmless treatment is further needed. At present, no mature technology is available for properly treating the chromium-containing waste residues.
Disclosure of utility model
In order to solve the technical problems, the utility model aims to provide an electrolytic manganese wastewater treatment system which can realize the recycling of chromium by separating chromium and then precipitating manganese.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an electrolytic manganese wastewater treatment system, includes the waste water collecting tank, its characterized in that: the waste water collecting tank is connected with the filtering device, the filtering device is connected with the regulating tank, the regulating tank is connected with the bottom water inlet of the hexavalent chromium adsorption device, the top water outlet of the hexavalent chromium adsorption device is connected with the bottom water inlet of the trivalent chromium adsorption device, the top water outlet of the trivalent chromium adsorption device is connected with the primary coagulation reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the primary coagulation reaction tank, a stirring device is arranged in the primary coagulation reaction tank, the water outlet of the primary coagulation reaction tank is connected with the primary sedimentation tank, the supernatant outlet pipeline of the primary sedimentation tank is connected with the secondary reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the secondary reaction tank, the water outlet of the secondary reaction tank is connected with the secondary sedimentation tank, and the supernatant outlet of the secondary sedimentation tank is connected with the pH regulating tank.
The wastewater firstly enters a collecting tank, then, large-particle-size impurities are removed through a filtering device, the wastewater enters an adjusting tank, the pH is adjusted, and the wastewater enters a hexavalent chromium adsorption device, wherein hexavalent chromium is adsorbed by adopting resin with good selectivity. This is prior art. Regenerants are also known in the art. The hexavalent chromium adsorption device only adsorbs hexavalent chromium, is pure hexavalent chromium, and is recycled after being regenerated by the regenerant. And then the wastewater enters a trivalent chromium adsorption device for adsorption, and the adsorption filler of trivalent chromium can be resin T-52H, so that the selectivity is good. The method is characterized in that in the prior art, then, the wastewater is subjected to a first-stage coagulation reaction tank and a second-stage reaction, sodium hydroxide is added first, then a flocculating agent is added, the PH of the first-stage coagulation reaction tank and the second-stage reaction is regulated, manganese is completely precipitated, and then, the wastewater enters a deamination blowing device for deamination and is discharged after reaching standards.
In the scheme, the method comprises the following steps: and pH meters are arranged in the primary coagulation reaction tank and the secondary reaction tank. The pH value of the primary coagulation reaction tank and the secondary reaction tank can be monitored, and the completion of manganese precipitation is ensured.
In the scheme, the method comprises the following steps: the top of hexavalent chromium adsorption device and trivalent chromium adsorption device is provided with the regenerant respectively and adds the pipeline, the regenerant that hexavalent chromium adsorption device and trivalent chromium adsorption device added the pipeline and connect respective regenerant storage tank respectively, be provided with automatic control valve and flowmeter on the regenerant adding the pipeline, the bottom of hexavalent chromium adsorption device and trivalent chromium adsorption device sets up the regenerant outlet pipeline respectively, is provided with the valve on the regenerant outlet pipeline.
In the scheme, the method comprises the following steps: the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline are respectively connected with the sodium hydroxide solution storage tank and the flocculating agent storage tank, and the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline are respectively provided with an automatic control valve and a flowmeter. Can realize automatic quantitative addition.
In the scheme, the method comprises the following steps: and sludge discharge pipes are respectively arranged in the first-stage sedimentation tank and the second-stage sedimentation tank. Can discharge the produced manganese-containing sludge.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can separate hexavalent chromium and trivalent chromium in the electrolytic manganese wastewater, and then precipitate manganese, so that the precipitated manganese slag does not contain chromium, and hexavalent chromium, trivalent chromium and manganese are convenient to treat and recycle, thereby achieving the effect of real wastewater treatment.
Drawings
FIG. 1 is a process flow diagram of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
In a first embodiment, as shown in fig. 1: electrolytic manganese wastewater treatment system, including waste water collecting tank 1, waste water collecting tank 1 links to each other with filter equipment 2, and filter equipment 2 connects equalizing basin 3, and equalizing basin 3 links to each other with hexavalent chromium adsorption equipment 4's bottom water inlet, and trivalent chromium adsorption equipment 5's bottom water inlet is connected to hexavalent chromium adsorption equipment 4's top delivery port, and trivalent chromium adsorption equipment 5's top delivery port is connected one-level and is thoughtlessly congealed reaction tank 6, is provided with sodium hydroxide solution on the one-level thoughtlessly congealed reaction tank 6 and adds the pipeline with the flocculating agent. The tops of the hexavalent chromium adsorption device 4 and the trivalent chromium adsorption device 5 are respectively provided with a regenerant adding pipeline, the regenerant adding pipelines of the hexavalent chromium adsorption device 4 and the trivalent chromium adsorption device 5 are respectively connected with respective regenerant storage tanks 14, the regenerant adding pipelines are provided with automatic control valves 12 and flow meters 13, the bottoms of the hexavalent chromium adsorption device and the trivalent chromium adsorption device are respectively provided with a regenerant outlet pipeline, and the regenerant outlet pipeline is provided with valves.
The water outlet of the primary coagulation reaction tank 6 is connected with the primary sedimentation tank 8, the supernatant outlet pipeline of the primary sedimentation tank 8 is connected with the secondary reaction tank 9, stirring devices are arranged in the primary coagulation reaction tank 6 and the secondary reaction tank 9, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the secondary reaction tank 9, the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline are respectively connected with the sodium hydroxide solution storage tank 10 and the flocculating agent storage tank 11, and an automatic control valve 12 and a flowmeter 13 are respectively arranged on the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline. And pH meters are arranged in the primary coagulation reaction tank and the secondary reaction tank.
The water outlet of the secondary reaction tank 9 is connected with a secondary sedimentation tank 16, and the supernatant outlet of the secondary sedimentation tank 16 is connected with a pH adjusting tank 17. The pH adjusting tank 17 is provided with an acid adding pipeline and an alkali liquor adding pipeline which are respectively connected with the acid storage tank 7 and the alkali liquor storage tank 15, the acid adding pipeline and the alkali liquor adding pipeline are respectively provided with an automatic control valve and a flowmeter, the pH adjusting tank 17 is internally provided with a pH meter, and the primary sedimentation tank and the secondary sedimentation tank are respectively provided with a mud discharging pipe.
Claims (5)
1. An electrolytic manganese wastewater treatment system, includes the waste water collecting tank, its characterized in that: the waste water collecting tank is connected with the filtering device, the filtering device is connected with the regulating tank, the regulating tank is connected with the bottom water inlet of the hexavalent chromium adsorption device, the top water outlet of the hexavalent chromium adsorption device is connected with the bottom water inlet of the trivalent chromium adsorption device, the top water outlet of the trivalent chromium adsorption device is connected with the primary coagulation reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the primary coagulation reaction tank, a stirring device is arranged in the primary coagulation reaction tank, the water outlet of the primary coagulation reaction tank is connected with the primary sedimentation tank, the supernatant outlet pipeline of the primary sedimentation tank is connected with the secondary reaction tank, a sodium hydroxide solution adding pipeline and a flocculating agent adding pipeline are arranged on the secondary reaction tank, the water outlet of the secondary reaction tank is connected with the secondary sedimentation tank, and the supernatant outlet of the secondary sedimentation tank is connected with the pH regulating tank.
2. The electrolytic manganese wastewater treatment system according to claim 1, wherein: and pH meters are arranged in the primary coagulation reaction tank and the secondary reaction tank.
3. The electrolytic manganese wastewater treatment system according to claim 1 or 2, wherein: the top of hexavalent chromium adsorption device and trivalent chromium adsorption device is provided with the regenerant respectively and adds the pipeline, the regenerant that hexavalent chromium adsorption device and trivalent chromium adsorption device added the pipeline and connect respective regenerant storage tank respectively, be provided with automatic control valve and flowmeter on the regenerant adding the pipeline, the bottom of hexavalent chromium adsorption device and trivalent chromium adsorption device sets up the regenerant outlet pipeline respectively, is provided with the valve on the regenerant outlet pipeline.
4. The electrolytic manganese wastewater treatment system according to claim 3, wherein: the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline are respectively connected with the sodium hydroxide solution storage tank and the flocculating agent storage tank, and the sodium hydroxide solution adding pipeline and the flocculating agent adding pipeline are respectively provided with an automatic control valve and a flowmeter.
5. The electrolytic manganese wastewater treatment system according to claim 4, wherein: and sludge discharge pipes are respectively arranged in the first-stage sedimentation tank and the second-stage sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323105641.7U CN221275542U (en) | 2023-11-17 | 2023-11-17 | Electrolytic manganese wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323105641.7U CN221275542U (en) | 2023-11-17 | 2023-11-17 | Electrolytic manganese wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221275542U true CN221275542U (en) | 2024-07-05 |
Family
ID=91707321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323105641.7U Active CN221275542U (en) | 2023-11-17 | 2023-11-17 | Electrolytic manganese wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221275542U (en) |
-
2023
- 2023-11-17 CN CN202323105641.7U patent/CN221275542U/en active Active
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