CN215161876U - High-efficient recycling system of passivation waste water - Google Patents
High-efficient recycling system of passivation waste water Download PDFInfo
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- CN215161876U CN215161876U CN202121054676.0U CN202121054676U CN215161876U CN 215161876 U CN215161876 U CN 215161876U CN 202121054676 U CN202121054676 U CN 202121054676U CN 215161876 U CN215161876 U CN 215161876U
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- reverse osmosis
- waste water
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- 239000002351 wastewater Substances 0.000 title claims abstract description 43
- 238000004064 recycling Methods 0.000 title claims abstract description 17
- 238000002161 passivation Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 17
- 238000000909 electrodialysis Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 11
- 238000005189 flocculation Methods 0.000 claims abstract description 5
- 230000016615 flocculation Effects 0.000 claims abstract description 5
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 4
- 230000001112 coagulating effect Effects 0.000 claims abstract description 3
- 239000006004 Quartz sand Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000010814 metallic waste Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910001430 chromium ion Inorganic materials 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- 229910001429 cobalt ion Inorganic materials 0.000 description 2
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 2
- -1 fluorine ions Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- 229910021583 Cobalt(III) fluoride Inorganic materials 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application relates to the technical field of industrial sewage treatment, in particular to a high-efficiency passivation wastewater recycling system. Include stoste storage tank, gunbarrel, equalizing basin, activated carbon filter and the RO reverse osmosis pure water equipment that sets gradually along the waste water treatment direction, still be equipped with coagulating basin and flocculation vat between stoste storage tank and the gunbarrel, still be equipped with the raw water jar of electrodialysis between activated carbon filter and the RO reverse osmosis pure water equipment. This application is through multistage filtration and to the waste water after the filtration use electroanalysis treatment process, and then promotes heavy metal waste water's purifying effect.
Description
Technical Field
The application relates to the technical field of industrial sewage treatment, in particular to a high-efficiency passivation wastewater recycling system.
Background
The passivation treatment is a chemical cleaning process for material corrosion prevention, so that a protective film is produced on the cleaned metal surface to slow down corrosion. The waste water after passivation treatment belongs to electroplating waste water, contains a large amount of harmful substances such as heavy metals and the like, can cause serious environmental pollution by direct discharge, and threatens the living conditions of human beings.
The passivation wastewater mainly comprises alkaline degreasing agent, sulfuric acid degreasing agent, chromium nitrate, trivalent chromium ions, divalent cobalt ions, fluorine ions and the like, the treatment of the heavy metal wastewater is changed from treatment and discharge to treatment and reuse, and the traditional treatment process has a reuse rate which is difficult to meet the existing requirement in the face of the requirement that the discharge amount of the heavy metal wastewater is increasingly improved.
SUMMERY OF THE UTILITY MODEL
In order to promote the processing reuse rate to heavy metal waste water, the application provides a high-efficient recycling system of passivation waste water.
The application provides a high-efficient recycling system of passivation waste water adopts following technical scheme:
the utility model provides a high-efficient recycling system of passivation waste water, includes stoste storage tank, gunbarrel, equalizing basin, activated carbon filter and RO reverse osmosis pure water equipment that set gradually along the waste water treatment direction, still be equipped with coagulating basin and flocculation vat between stoste storage tank and the gunbarrel, still be equipped with the raw water jar of electrodialysis between activated carbon filter and the RO reverse osmosis pure water equipment.
Preferably, a water collecting tank is further arranged between the settling tank and the adjusting tank.
Preferably, a quartz sand filter and an intermediate water tank are arranged between the activated carbon filter and the regulating tank, and the intermediate water tank is respectively connected with the quartz sand filter and the regulating tank.
Preferably, an RO membrane raw water tank is also arranged between the electrodialysis raw water tank and the RO reverse osmosis pure water device.
Preferably, the RO reverse osmosis pure water device is connected with the electrodialysis raw water tank and is used for introducing the wastewater into the electrodialysis raw water tank.
In summary, the present application includes at least one of the following benefits:
1. the electrodialysis treatment process is added after the activated carbon filtration, so that ions in the wastewater are reduced, the wastewater is desalted, concentrated and purified, and the concentration of heavy ions is reduced;
2. and the wastewater subjected to electrolytic desalting passes through an RO reverse osmosis pure water device to further purify the wastewater, so that the wastewater reaches the recycling standard.
Drawings
FIG. 1 is a system block diagram of a system for efficiently recycling passivated wastewater according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a high-efficient recycling system of passivation waste water. Referring to fig. 1, the high-efficient recycling system of passivation waste water includes the stoste storage tank that sets gradually along the waste water treatment direction, the gunbarrel, the equalizing basin, activated carbon filter and RO reverse osmosis pure water equipment, wherein, the waste water collection on producing the line is in the stoste storage tank, carry out neutralization and deposit through adding a series of chemical agent, deposit in the gunbarrel, all the other waste water passes through the PH and adjusts, then use activated carbon filter to filter, clean back is through RO reverse osmosis pure water equipment, make waste water reach the pure water standard, thereby recycle.
Referring to fig. 1, a coagulation tank and a flocculation tank are further arranged between the stock solution storage tank and the settling tank, wherein the coagulation tank is connected with the stock solution storage tank, and the flocculation tank is connected with the settling tank. The method comprises the steps of introducing wastewater into a coagulation tank from a stock solution storage tank, adding calcium hydroxide, a heavy metal capture agent, PFC (Power factor correction) and other agents, precipitating pollutants such as trivalent chromium ions, divalent cobalt ions and fluoride ions in the wastewater in the form of chromium hydroxide, cobalt hydroxide and calcium fluoride by the calcium hydroxide, reducing the addition amount of salt in the wastewater, and reducing the conductivity of 6000us/cm of raw water to 3000-4000us/cm after reaction.
A water collecting tank is additionally arranged between the settling tank and the regulating tank, wastewater in the settling tank forms highly dispersed micro bubbles in water through secondary sedimentation, solid or liquid particles of a hydrophobic group in the wastewater are adhered to form a water-gas-particle three-phase mixed system, after the particles are adhered to the bubbles, flocs with surface density smaller than that of the water are formed and float to the water surface, a scum layer is formed and scraped, so that solid-liquid separation is realized, and the separated wastewater is sent into the water collecting tank.
Referring to fig. 1, a quartz sand filter and an intermediate water tank are further arranged between the adjusting tank and the activated carbon filter, wherein the quartz sand filter is connected with the activated carbon filter, the intermediate water tank is connected with the adjusting tank, dilute sulfuric acid is added into the adjusting tank to adjust the PH of the waste liquid, and the adjusted waste liquid is introduced into the intermediate water tank and then filtered by the quartz sand filter and the activated carbon filter respectively. The quartz sand filter is filled with fine quartz sand, so that particulate impurities in the wastewater are blocked, and solid particles insoluble in water are intercepted. The waste water filtered by the quartz sand enters an activated carbon filter for filtering, the activated carbon filter is filled with an activated carbon filter material, and organic matters in the water, such as colloid, ions and other impurities, are adsorbed through micropores with huge amount of activated carbon, so that the waste liquid is further evolved.
Referring to fig. 1, an electrodialysis raw water tank and an RO membrane raw water tank are further provided between the activated carbon filter and the RO reverse osmosis pure water plant. The electrodialysis treatment process is added to the wastewater after the active carbon filtration, and the selective permeability of the ion exchange membrane, namely the movement of anions and cations to the anode and the cathode respectively is utilized under the driving of an external direct current electric field by utilizing the combination of the electrochemical process and the dialysis diffusion process. In the ion migration process, if the fixed charge of the membrane is opposite to the charge of the ions, the ions can pass through; if the charges of the two are the same, the ions are repelled, so that the purposes of solution desalination, concentration, refining or purification and the like are achieved. The conductivity of the fresh water treated by the electrodialysis equipment can be reduced to 500-800 us/cm. The wastewater after the electrolytic desalination is recycled by RO reverse osmosis pure water equipment, wherein the conductivity of the effluent of the RO reverse osmosis pure water equipment can be reduced to below 200us/cm, and the recycle standard is achieved. The concentrated solution of the RO reverse osmosis pure water device flows back to the electrodialysis raw water tank through a pipeline, and is subjected to circular treatment after desalination by the electrodialysis raw water tank, so that the recycling rate of the whole process wastewater can be improved. A small amount of electrodialysis concentrated solution can be subjected to external treatment, and can also be mixed with other wastewater to reach the standard for treatment, and the total utilization rate of the equipment can be improved to more than 90%.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides a high-efficient recycling system of passivation waste water which characterized in that: include stoste storage tank, gunbarrel, equalizing basin, activated carbon filter and the RO reverse osmosis pure water equipment that sets gradually along the waste water treatment direction, still be equipped with coagulating basin and flocculation vat between stoste storage tank and the gunbarrel, still be equipped with the raw water jar of electrodialysis between activated carbon filter and the RO reverse osmosis pure water equipment.
2. The high-efficiency recycling system for passivated wastewater according to claim 1, characterized in that: a water collecting tank is also arranged between the settling tank and the regulating tank.
3. The high-efficiency recycling system for passivated wastewater according to claim 1, characterized in that: the activated carbon filter with be equipped with quartz sand filter and middle water pitcher between the equalizing basin, middle water pitcher links to each other with quartz sand filter and equalizing basin respectively.
4. The high-efficiency recycling system for passivated wastewater according to claim 1, characterized in that: and an RO membrane raw water tank is also arranged between the electrodialysis raw water tank and the RO reverse osmosis pure water equipment.
5. The high-efficiency recycling system for passivated wastewater according to claim 1, characterized in that: and the RO reverse osmosis pure water equipment is connected with the electrodialysis raw water tank and is used for introducing the wastewater into the electrodialysis raw water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054676.0U CN215161876U (en) | 2021-05-18 | 2021-05-18 | High-efficient recycling system of passivation waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054676.0U CN215161876U (en) | 2021-05-18 | 2021-05-18 | High-efficient recycling system of passivation waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215161876U true CN215161876U (en) | 2021-12-14 |
Family
ID=79370684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054676.0U Active CN215161876U (en) | 2021-05-18 | 2021-05-18 | High-efficient recycling system of passivation waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215161876U (en) |
-
2021
- 2021-05-18 CN CN202121054676.0U patent/CN215161876U/en active Active
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