CN212151799U - Electroplating nickel sulfate rinsing wastewater recycling system - Google Patents
Electroplating nickel sulfate rinsing wastewater recycling system Download PDFInfo
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- CN212151799U CN212151799U CN201922238609.3U CN201922238609U CN212151799U CN 212151799 U CN212151799 U CN 212151799U CN 201922238609 U CN201922238609 U CN 201922238609U CN 212151799 U CN212151799 U CN 212151799U
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Abstract
The utility model discloses an electroplating nickel sulfate rinsing wastewater recycling system, which comprises a raw water tank, a raw water pretreatment system, an ultrafiltration water tank, a primary RO concentration device, a water production tank, a concentration water tank, a secondary RO concentration device and a super concentration water tank; the water outlet of the raw water tank is sequentially connected with a multi-medium filter, a cartridge filter and an UF ultrafiltration device; the water outlet of the UF ultrafiltration device is connected with an ultrafiltration water tank; the water outlet of the ultrafiltration water tank is connected with the water inlet of the primary RO concentration device, the water outlet of the primary RO concentration device is connected with the electroplating rinsing tank through the water tank, and the concentrated water outlet is connected with the water inlet of the concentrated water tank; the water outlet of the concentrated water tank is connected with the water inlet of the second-stage RO concentration device, the water outlet of the second-stage RO concentration device is connected with the water inlet of the concentrated water tank, and the concentrated water outlet is connected with the electroplating mother tank through the super concentrated water tank. The utility model discloses the operation is stable, easy and simple to handle, and the pure water after nickeliferous waste water is concentrated is used for electroplating the potcher again, and the concentrate after the super concentration is used for electroplating the master tank again.
Description
Technical Field
The utility model belongs to nickel-containing rinsing wastewater treatment field of electroplating trade, concretely relates to electroplating nickel sulfate rinsing wastewater recycling system.
Background
The electroplating industry generates a large amount of heavy metal wastewater every year, and a large amount of manpower, material resources and financial resources are required to be invested for treating the electroplating wastewater. Nickel is a precious heavy metal resource and is expensive. If nickel-containing electroplating effluent is not handled or is handled and just discharge in the water not up to standard, not only the polluted environment still can harm health, if can add recycle with nickel-containing electroplating effluent, not only can reduce the pollution of heavy metal waste water to the environment, can reduce the manufacturing cost and the water economy resource of enterprise moreover.
Nowadays, the membrane technology is widely applied to the treatment of heavy metal wastewater, and is mostly applied to the membrane concentration and separation technology; the concentration of the membrane to the heavy metal wastewater has a certain limit value, and the concentration of the concentrated solution after concentration hardly reaches the concentration of the electroplating solution in the electroplating mother tank, but the membrane can be used as the compensation solution of the electroplating mother tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide an electroplating nickel sulfate rinsing waste water recycling system, carry out concentrated recovery to electroplating nickel sulfate rinsing waste water, the hyperconcentration water after the separation satisfies the quality requirement of electroplating nickel sulfate, supplies the production line to electroplate female groove retrieval and utilization.
The purpose of the utility model is realized through the following technical scheme:
a system for recycling rinsing wastewater of electroplated nickel sulfate comprises a raw water tank 1, a raw water pretreatment system, an ultrafiltration water tank 6, a primary RO concentration device 8, a production water tank 9, a concentration water tank 10, a secondary RO concentration device 12 and an ultra-concentration water tank 13; the water inlet of the raw water tank 1 is connected with the electroplating rinsing tank 19, the water outlet of the raw water tank 1 is connected with the water inlet of a raw water pretreatment system, and the raw water pretreatment system comprises a multi-media filter 3, a security filter 4 and a UF ultrafiltration device 5 which are sequentially connected; a concentrated water outlet of the UF ultrafiltration device 5 is connected with a water inlet of the raw water tank 1, and a water outlet of the UF ultrafiltration device 5 is connected with an ultrafiltration water tank 6; the water outlet of the ultrafiltration water tank 6 is connected with the water inlet of the primary RO concentration device 8, the water outlet of the primary RO concentration device 8 is connected with the water inlet of the water production tank 9, the water outlet of the water production tank 9 is connected with the electroplating rinsing tank 19, and the concentrated water outlet of the primary RO concentration device 8 is connected with the water inlet of the concentrated water tank 10; the delivery port of concentrated water tank 10 be connected with the water inlet of second grade RO enrichment facility 12, the product water mouth of second grade RO enrichment facility 12 is connected with the water inlet of concentrated water tank 10, the dense water export of second grade RO enrichment facility 12 links to each other with the water inlet of super concentrated water tank 13, the delivery port of super concentrated water tank 13 is connected with electroplating mother's groove 18.
Preferably, the nickel sulfate rinsing wastewater overflows into the raw water tank 1 between the electroplating rinsing tank 19 and the raw water tank 1 in an overflow mode.
Preferably, a raw water booster pump 2 is arranged on a connecting pipeline between the raw water tank 1 and the raw water pretreatment system.
Preferably, the filter medium of the multi-medium filter 3 is quartz sand; the filtering core of the security filter 4 is a PP filter core.
Preferably, the ultrafiltration membrane of the UF ultrafiltration device 5 is a hollow tube bundle porous membrane having a super-screening function.
Preferably, a primary RO high pressure pump 7 is arranged on a connecting pipeline of the ultrafiltration water tank 6 and the primary RO concentration device 8.
Preferably, the reverse osmosis membrane of the primary RO concentration device 8 is a brackish water reverse osmosis membrane.
Preferably, a secondary RO high pressure pump 11 is arranged on a connecting pipeline between the concentrated water tank 10 and the secondary RO concentrating device 12.
Preferably, the reverse osmosis membrane of the secondary RO concentration device 12 is a seawater desalination reverse osmosis membrane.
Preferably, a pure water booster pump 14 is arranged on a connecting pipeline between the water production tank 9 and the electroplating rinse tank 19.
Preferably, a super-concentrated water booster pump 15 is arranged on a connecting pipeline of the super-concentrated water tank 13 and the electroplating mother tank 18.
Preferably, electroplating nickel sulfate rinsing wastewater recycling system still include cleaning system, cleaning system including rinsing medical kit 16, be equipped with medicine washing booster pump 17 on the outlet pipeline that rinses medical kit 16, medicine washing booster pump 17's export respectively through the washing access connection of branch road and former water pretreatment system, one-level RO enrichment facility 8, second grade RO enrichment facility 12, former water pretreatment system, one-level RO enrichment facility 8, second grade RO enrichment facility 12 wash the export respectively through the branch road and rinse the access connection of medical kit 16.
When in use: the nickel sulfate rinsing wastewater in the electroplating rinsing tank 19 enters the raw water tank 1 through overflow, the nickel sulfate rinsing wastewater to be treated is pumped into the multi-media filter 3 through the raw water booster pump 2 for rough filtration and then enters the security filter 4 for fine filtration, and the raw water passes through the multi-media filter 3 and the security filter 4 and has the function of filtering harmful pollution blocking components such as impurity suspended matters, partial organic matters, colloidal particles and the like in the rinsing wastewater so as to prevent the components from entering the UF ultrafiltration device 5 to block and damage the ultrafiltration membrane, reduce the ultrafiltration effect of the ultrafiltration membrane and shorten the service life of the ultrafiltration membrane; after rough filtration, the wastewater enters a UF ultrafiltration device 5 for ultrafiltration purification treatment, particles, colloid, microorganisms, high molecular organic matters and the like in the wastewater are effectively removed through an ultrafiltration membrane, and water quality indexes such as turbidity, TOC, COD and the like of rinsing wastewater are effectively reduced, so that a reverse osmosis membrane used in subsequent concentration is better protected. Returning concentrated water subjected to ultrafiltration purification by a UF ultrafiltration device 5 to an original water tank 1, feeding ultrafiltration purified product water into an ultrafiltration water tank 6, pumping the ultrafiltration water into a primary RO concentration device 8 through a primary RO high-pressure pump 7, maintaining the operating pressure at 1.5-2.0 MPa, repeatedly concentrating and separating by using a brackish water reverse osmosis membrane, feeding the concentrated and separated concentrated water into a concentrated water tank 10, feeding the product water into a product water tank 9, and pumping pure water in the product water tank 9 into an electroplating rinsing tank 19 through a pure water booster pump 14 for reuse as rinsing water; pumping the concentrated water in the concentrated water tank 10 into a secondary RO concentration device 12 through a secondary RO high-pressure pump 11, maintaining the operating pressure at 1.8-2.4 MPa, performing repeated super-concentration separation by using a seawater desalination reverse osmosis membrane, pumping the super-concentrated separated concentrated water into a super-concentrated water tank 13, pumping the super-concentrated water into an electroplating mother tank 18 through a super-concentrated water booster pump 15 to be used as electroplating tank liquid, and pumping the super-concentrated produced water into the concentrated water tank 10 to continuously participate in the super-concentration separation; when the concentration and the super concentration are carried out, when the water yield is lower than half of the normal water yield, the operation pressure of the concentration and super concentration device is properly increased. And (4) pumping the cleaning liquid medicine in the cleaning medicine box 16 into the secondary RO concentration device 12, the primary RO concentration device 8 and the raw water pretreatment system in sequence by the medicine cleaning water booster pump 17 every 7-10 days, wherein the cleaning time is generally maintained for 15-20 min.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model has the advantages of simple integral structure, small occupied space, simple operation, stable operation, simple operation and low construction, operation and maintenance cost.
(2) The utility model discloses a concentrated system of two-stage RO can the concentrated separation nickel sulfate rinsing waste water of efficient, and super concentrated water after the separation supplies the production line to electroplate the mother groove retrieval and utilization, and the product water after the concentration supplies the production line to electroplate the potcher retrieval and utilization promptly pure water, not only fully retrieved heavy metal nickel, practiced thrift the water resource, has still protected environment and water.
(3) The utility model discloses having added cleaning system, having improved the stifled phenomenon of dirt of membrane system, strengthened the operational effect of membrane system and prolonged the life of membrane.
Drawings
FIG. 1 is a schematic structural view of the system for recycling rinsing wastewater of nickel sulfate electroplating according to the present invention.
In FIG. 1, 1-raw water tank, 2-raw water booster pump, 3-multi-media filter, 4-cartridge filter, 5-UF ultrafiltration apparatus, 6-ultrafiltration water tank, 7-primary RO high-pressure pump, 8-primary RO concentration apparatus, 9-product water tank, 10-concentration water tank, 11-secondary RO high-pressure pump, 12-secondary RO concentration apparatus, 13-super concentration water tank, 14-pure water booster pump, 15-super concentration water booster pump, 16-cleaning chemical tank, 17-chemical washing water booster pump, 18-electroplating mother tank, 19-electroplating rinse tank.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a system for recycling rinsing wastewater of electroplated nickel sulfate comprises a raw water tank 1, a raw water pretreatment system, an ultrafiltration water tank 6, a primary RO concentration device 8, a product water tank 9, a concentration water tank 10, a secondary RO concentration device 12 and a super concentration water tank 13; the water inlet of the raw water tank 1 is connected with the electroplating rinsing tank 19, the water outlet of the raw water tank 1 is connected with the water inlet of a raw water pretreatment system through a raw water booster pump 2, and the raw water pretreatment system comprises a multi-media filter 3, a security filter 4 and a UF ultrafiltration device 5 which are sequentially connected; a concentrated water outlet of the UF ultrafiltration device 5 is connected with a water inlet of the raw water tank 1, and a water production outlet of the UF ultrafiltration device 5 is connected with an ultrafiltration water tank 6; the water outlet of the ultrafiltration water tank 6 is connected with the water inlet of a primary RO concentration device 8 through a primary RO high-pressure pump, the water outlet of the primary RO concentration device 8 is connected with the water inlet of a water production tank 9, the water outlet of the water production tank 9 is connected with an electroplating rinsing tank 19 through a pure water booster pump 14, and the concentrated water outlet of the primary RO concentration device 8 is connected with the water inlet of a concentrated water tank 10; the water outlet of the concentrated water tank 10 is connected with the water inlet of a second-stage RO concentrating device 12 through a second-stage RO high-pressure pump 11, the water producing port of the second-stage RO concentrating device 12 is connected with the water inlet of the concentrated water tank 10, the concentrated water outlet of the second-stage RO concentrating device 12 is connected with the water inlet of a super concentrated water tank 13, and the water outlet of the super concentrated water tank 13 is connected with an electroplating mother tank 18 through a super concentrated water booster pump 15.
The water outlet of the cleaning medicine box 16 is respectively connected with the cleaning inlet of the secondary RO concentration device 12, the cleaning inlet of the primary RO concentration device 8 and the cleaning inlet of the raw water treatment system through a medicine washing water booster pump 17; and the cleaning outlet of the secondary RO concentration device 12, the cleaning outlet of the primary RO concentration device 8 and the cleaning outlet of the raw water pretreatment system are respectively connected with the inlet of a cleaning medicine box 16.
The multi-media filter 3 is provided with a first pressure gauge, the security filter 4 is provided with a second pressure gauge, and the water inlet of the UF ultrafiltration device 5 is provided with a third pressure gauge; the water inlet of the first-stage RO concentration device 8 is provided with a membrane front pressure meter and a conductivity meter, the water production position is provided with a membrane rear pressure meter and a conductivity meter, the water inlet of the second-stage RO concentration device 12 is provided with a membrane front pressure meter and a conductivity meter, and the water production position is provided with a membrane rear pressure meter and a conductivity meter.
The connecting pipeline of the UF ultrafiltration device 5 and the raw water tank 1 is provided with an electromagnetic valve, and the connecting pipeline of the UF ultrafiltration device 5 and the ultrafiltration water tank 6 is provided with an electromagnetic valve; a panel flowmeter with a proper measuring range is arranged on a pipeline for producing the concentrated water and the water produced by the first-stage RO concentrating device 8; and a panel flowmeter with a proper range is arranged on a pipeline for producing the super-concentrated water and the water generated by the secondary RO concentrating device 8.
The filter medium of the multi-medium filter 3 is quartz sand; the filtering core of the security filter 4 adopts a PHFL series PP filter core; the ultrafiltration membrane of the UF ultrafiltration device 5 adopts AQU hollow tube bundle porous membrane; the reverse osmosis membrane of the first-stage RO concentration device 8 adopts a DOW BW30 series polyamide composite membrane; the reverse osmosis membrane of the secondary RO concentration device 12 adopts a DOW SW30 series polyamide composite membrane.
When in use: the nickel sulfate rinsing wastewater in the electroplating rinsing tank 19 enters the raw water tank 1 through overflow, the nickel sulfate rinsing wastewater to be treated is pumped into the multi-media filter 3 through the raw water booster pump 2 for rough filtration and then enters the security filter 4 for fine filtration, and the raw water passes through the multi-media filter 3 and the security filter 4 and has the function of filtering harmful pollution blocking components such as impurity suspended matters, partial organic matters, colloidal particles and the like in the rinsing wastewater so as to prevent the components from entering the UF ultrafiltration device 5 to block and damage the ultrafiltration membrane, reduce the ultrafiltration effect of the ultrafiltration membrane and shorten the service life of the ultrafiltration membrane; after rough filtration, the wastewater enters a UF ultrafiltration device 5 for ultrafiltration purification treatment, particles, colloid, microorganisms, high molecular organic matters and the like in the wastewater are effectively removed through an ultrafiltration membrane, and water quality indexes such as turbidity, TOC, COD and the like of rinsing wastewater are effectively reduced, so that a reverse osmosis membrane used in subsequent concentration is better protected. Returning concentrated water subjected to ultrafiltration purification by a UF ultrafiltration device 5 to an original water tank 1, feeding ultrafiltration purified product water into an ultrafiltration water tank 6, pumping the ultrafiltration water into a primary RO concentration device 8 through a primary RO high-pressure pump 7, maintaining the operating pressure at 1.5-2.0 MPa, repeatedly concentrating and separating by using a brackish water reverse osmosis membrane, feeding the concentrated and separated concentrated water into a concentrated water tank 10, feeding the product water into a product water tank 9, and pumping pure water in the product water tank 9 into an electroplating rinsing tank 19 through a pure water booster pump 14 for reuse as rinsing water; pumping the concentrated water in the concentrated water tank 10 into a secondary RO concentration device 12 through a secondary RO high-pressure pump 11, maintaining the operating pressure at 1.8-2.4 MPa, performing repeated super-concentration separation by using a seawater desalination reverse osmosis membrane, pumping the super-concentrated separated concentrated water into a super-concentrated water tank 13, pumping the super-concentrated water into an electroplating mother tank 18 through a super-concentrated water booster pump 15 to be used as electroplating tank liquid, and pumping the super-concentrated produced water into the concentrated water tank 10 to continuously participate in the super-concentration separation; when the concentration and the super concentration are carried out, when the water yield is lower than half of the normal water yield, the operation pressure of the concentration and super concentration device is properly increased. And (4) pumping the cleaning liquid medicine in the cleaning medicine box 16 into the secondary RO concentration device 12, the primary RO concentration device 8 and the raw water pretreatment system in sequence by the medicine cleaning water booster pump 17 every 7-10 days, wherein the cleaning time is generally maintained for 15-20 min.
Claims (10)
1. A system for recycling rinsing wastewater of electroplated nickel sulfate is characterized by comprising a raw water tank (1), a raw water pretreatment system, an ultrafiltration water tank (6), a primary RO concentration device (8), a water production tank (9), a concentration water tank (10), a secondary RO concentration device (12) and a super concentration water tank (13); the water inlet of the raw water tank (1) is connected with the electroplating rinsing tank (19), the water outlet of the raw water tank (1) is connected with the water inlet of the raw water pretreatment system, and the raw water pretreatment system comprises a multi-media filter (3), a security filter (4) and a UF ultrafiltration device (5) which are sequentially connected; a concentrated water outlet of the UF ultrafiltration device (5) is connected with a water inlet of the raw water tank (1), and a water production port of the UF ultrafiltration device (5) is connected with the ultrafiltration water tank (6); the water outlet of the ultrafiltration water tank (6) is connected with the water inlet of the primary RO concentration device (8), the water outlet of the primary RO concentration device (8) is connected with the water inlet of the water production tank (9), the water outlet of the water production tank (9) is connected with the electroplating rinsing tank (19), and the concentrated water outlet of the primary RO concentration device (8) is connected with the water inlet of the concentrated water tank (10); the water outlet of the concentrated water tank (10) is connected with the water inlet of the second-stage RO concentrating device (12), the water producing port of the second-stage RO concentrating device (12) is connected with the water inlet of the concentrated water tank (10), the concentrated water outlet of the second-stage RO concentrating device (12) is connected with the water inlet of the super concentrated water tank (13), and the water outlet of the super concentrated water tank (13) is connected with the electroplating mother tank (18).
2. The system for recycling the electroplating nickel sulfate rinsing wastewater as claimed in claim 1, wherein an overflow mode is adopted between the electroplating rinsing tank (19) and the raw water tank (1) to enable the nickel sulfate rinsing wastewater to overflow into the raw water tank.
3. The system for recycling the rinsing wastewater of the electroplated nickel sulfate as claimed in claim 1, wherein a raw water booster pump (2) is arranged on a connecting pipeline between the raw water tank (1) and the raw water pretreatment system.
4. The system for recycling the rinsing wastewater of the electroplated nickel sulfate according to claim 1, characterized in that the filtering medium of the multi-medium filter (3) is quartz sand; the filtering core of the security filter (4) adopts a PP filtering core.
5. The system for recycling the rinse wastewater of electroplated nickel sulfate according to claim 1, characterized in that the ultrafiltration membrane of the UF ultrafiltration device (5) is a hollow tube bundle porous membrane.
6. The system for recycling the rinsing wastewater of the electroplated nickel sulfate according to claim 1, characterized in that a connection pipeline between the ultrafiltration water tank (6) and the primary RO concentration device (8) is provided with a primary RO high-pressure pump (7); and a second-stage RO high-pressure pump (11) is arranged on a connecting pipeline between the concentration water tank (10) and the second-stage RO concentration device (12).
7. The system for recycling electroplating nickel sulfate rinsing wastewater according to claim 1, wherein the reverse osmosis membrane of the primary RO concentration device (8) is a brackish water reverse osmosis membrane; the reverse osmosis membrane of the secondary RO concentration device (12) is a seawater desalination reverse osmosis membrane.
8. The system for recycling the rinsing wastewater of the electroplated nickel sulfate as claimed in claim 1, wherein a pure water booster pump (14) is arranged on a connecting pipeline between the water production tank (9) and the electroplating rinsing tank (19).
9. The system for recycling the rinsing wastewater of electroplated nickel sulfate as claimed in claim 1, wherein a super concentrated water booster pump (15) is arranged on a connecting pipeline between the super concentrated water tank (13) and the electroplating mother tank (18).
10. The system for recycling electroplating nickel sulfate rinsing wastewater as claimed in claim 1, wherein the system for recycling electroplating nickel sulfate rinsing wastewater further comprises a cleaning system, the cleaning system comprises a cleaning chemical box (16), a chemical washing booster pump (17) is arranged on an outlet pipeline of the cleaning chemical box (16), the outlet of the chemical washing booster pump (17) is respectively connected with the cleaning inlet of the raw water pretreatment system, the primary RO concentration device (8) and the secondary RO concentration device (12) through a branch, and the cleaning outlet of the raw water pretreatment system, the primary RO concentration device (8) and the secondary RO concentration device (12) is respectively connected with the inlet of the cleaning chemical box (16) through a branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922238609.3U CN212151799U (en) | 2019-12-13 | 2019-12-13 | Electroplating nickel sulfate rinsing wastewater recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922238609.3U CN212151799U (en) | 2019-12-13 | 2019-12-13 | Electroplating nickel sulfate rinsing wastewater recycling system |
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| Publication Number | Publication Date |
|---|---|
| CN212151799U true CN212151799U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922238609.3U Active CN212151799U (en) | 2019-12-13 | 2019-12-13 | Electroplating nickel sulfate rinsing wastewater recycling system |
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| CN (1) | CN212151799U (en) |
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