CN206408003U - A kind of processing system of Ni-containing Plating Wastewater - Google Patents
A kind of processing system of Ni-containing Plating Wastewater Download PDFInfo
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- CN206408003U CN206408003U CN201621427356.4U CN201621427356U CN206408003U CN 206408003 U CN206408003 U CN 206408003U CN 201621427356 U CN201621427356 U CN 201621427356U CN 206408003 U CN206408003 U CN 206408003U
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Abstract
The utility model is related to industrial waste water disposal device technical field, disclose a kind of processing system of Ni-containing Plating Wastewater, including the waste water pretreatment system being sequentially connected, the first cartridge filter, nanofiltration device, the second cartridge filter and reverse osmosis unit, the waste water after being handled through waste water pretreatment system pretreatment is pumped into the first cartridge filter（Antisludging agent can also be added into waste water）；The water outlet of first cartridge filter is pumped into nanofiltration device；Waste water after nanofiltration is filtered is pumped into the second cartridge filter, the waste water after the processing of the second cartridge filter is pumped into reverse osmosis unit, the water outlet of reverse osmosis unit can be up to standard；The system architecture is simple, can significantly reduce the usage amount of chemical agent, reduces sludge quantity and secondary pollution.
Description
Technical field
The utility model is related to industrial waste water disposal device technical field, more particularly, to a kind of Ni-containing Plating Wastewater
Processing system.
Background technology
Nickel-containing waste water is essentially from nickel plating production line rinse water, because nickel is the first pollutant, it is therefore desirable to individually locate
Reason is up to standard to discharge.Conventional processing method is：（1）Such waste water control pH 11 or so, stable hydrogen can be generated
Oxide precipitation and remove, the waste water of this method need to be collected separately in workshop individually handles it is up to standard after discharge；（2）In addition,
If containing hypophosphorous acid, phosphorous acid, ortho phosphorous acid in waste water, complexing nickel can be formed, phosphorus is will also result in exceeded.It is general to utilize chemistry
Oxidizing process can destroy its structure, generation calcium phosphate precipitation and nickel hydroxide precipitate.In nickel-containing waste water typically after precipitation
Nickel content in 0.5mg/L or so.A few class waste water, according to the difference of discharge standard, may be needed also after materializing strategy above
It is further processed, such as biochemical treatment, multi-medium filtering, activated carbon filtering, ion-exchange treatment, ozone oxidation are deep
Degree processing, to reach the requirement of discharge standard.
After being handled through above-mentioned processing mode, the nickel content in nickel-containing waste water is general in 0.5mg/L or so, and has fluctuation, no
Discharge standard can be stably reached, above-mentioned processing mode is strict to operation service requirement, artificially causes the exceeded possibility of nickel larger
（The size influence of dosage）, the nickel in waste water is caused it is difficult to stably reaching standard.
The content of the invention
Technical problem to be solved in the utility model is that the drawbacks described above for overcoming prior art to exist is electroplated there is provided one kind
The processing system of nickel-containing waste water.
The purpose of this utility model is achieved by the following technical programs：
A kind of processing system of Ni-containing Plating Wastewater, including be sequentially connected waste water pretreatment system, first security personnel filtering
Device, nanofiltration device, the second cartridge filter and reverse osmosis unit.
The operation principle of present treatment system is：（1）Alkali is first added into Ni-containing Plating Wastewater, regulation Ni-containing Plating Wastewater
PH value is 4.5~5.5；（2）The suspension adjusted in the waste water after pH, bacterium, virus, colloid, macromolecular are removed, makes waste water
Turbidity is less than 1, SDI and is less than 5；（3）By step（2）Waste water after processing is pumped into the first cartridge filter（And add into waste water
Enter antisludging agent）；（4）By step（3）The water outlet of first cartridge filter is pumped into nanofiltration device；（5）By step（4）Nanofiltration device
Waste water after filtering is pumped into the second cartridge filter；（6）By step（5）Waste water after the processing of second cartridge filter is pumped into instead
In permeability apparatus, the water outlet of reverse osmosis unit can be up to standard.
Step（3）The first cartridge filter and step（5）The second cartridge filter filtering be mainly used in retention it is preposition
The mechanical admixture or the particle of rupture that may be leaked in pipeline, equipment, it is ensured that the cleannes of follow-up counter-infiltration system water inlet, to prevent
The mechanical admixture of prime filter leaks enters reverse-osmosis membrane element, and this particle may puncture counter-infiltration after accelerating through high-pressure pump
Membrane component, causes the leakage of a large amount of salts, while the impeller of high-pressure pump may be scratched.Step（4）Nanofiltration device filtering point
Disembark reason for screening and dissolving spread and deposit, while again have electrical charge rejection effect, can effectively remove divalence and multivalence from
Son, all kinds of materials for removing molecular weight about 200~1000, can partly remove the material of monovalention and molecular weight less than 200,
Filtered by nanofiltration device, most divalence and multivalent ion have been concentrated in dope, can mitigate follow-up anti-significantly
The pressure of osmosis system, extends the life-span of reverse-osmosis membrane element.Step（6）Reverse osmosis unit can remove it is exhausted big in processing water
The impurity such as part salinity, colloid, bacterium, virus, bacterial endotoxin and most of organic matter, because the existing nanofiltration device of leading portion will
The divalence and multivalent ion of the overwhelming majority are removed, and are largely monovalence pollutant, the stifled situation of dirt into the water of counter-infiltration system
It can alleviate significantly.
Above-mentioned steps（1）And step（2）For the preprocessing process of waste water, realized by waste water pretreatment system, to realize step
Suddenly（2）Purpose, there are a variety of achievable modes, as being preferred embodiment：By step（1）At the first regulating reservoir
Waste water after reason is precipitated into sedimentation basin, and the sludge after precipitation enters sludge collecting pit, follow-up to be carried out by filter-pressing device
Press filtration is handled, and the filtrate obtained by press filtration enters at the regulation that the second regulating reservoir carries out water and water quality, gained solid sludges outward transport
Supernatant after reason, precipitation is pumped into more medium filter, and filtration treatment is carried out to the suspension in waste water, and more medium filter goes out
Water water quality SDI≤4；More medium filter water outlet is pumped into ultrafiltration apparatus（There is very much milipore filter）, filtering reaction is carried out, water outlet is kept in
In the ultrafiltration water tank of ultrafiltration apparatus, backwashing pump is provided with ultrafiltration apparatus, the water of ultrafiltration concentrated water side is extracted to super using backwashing pump
Filter membrane is washed away, and pollutant is regularly taken to milipore filter blockage of the micro orifice using pumping in the case of realizing interior circulation, drop low-yield water
Water in ultrafiltration water tank carries out backwash to milipore filter.
It is therefore preferred that the first regulating reservoir, sedimentation basin, sludge that the waste water pretreatment system includes being sequentially connected are received
Ji Chi, filter-pressing device, the second regulating reservoir, more medium filter and ultrafiltration apparatus.
Preferably, the ultrafiltration apparatus is provided with backwashing pump, and the water that backwashing pump extracts ultrafiltration concentrated water side is carried out to milipore filter
Wash away, realize interior circulation.
In order to save equipment cost, it is regulating reservoir that can merge the first regulating reservoir and the second regulating reservoir, it is highly preferred that described
Waste water pretreatment system includes regulating reservoir, sedimentation basin, sludge collecting pit, filter-pressing device, more medium filter and ultrafiltration apparatus, its
In, one end of regulating reservoir is connected with sedimentation basin, sludge collecting pit, filter-pressing device successively, and the other end of regulating reservoir is situated between more with successively
Mass filter is connected with ultrafiltration apparatus, and the other end of the filter-pressing device also leads to regulating reservoir.
In order to adjust the water of system below, improve the life-span of pump, convenient maintenance, it is preferable that second regulating reservoir and
Intermediate pool is additionally provided between more medium filter.
In order to realize step（2）Purpose, another preferred embodiment is：By step（1）By the first regulating reservoir
Waste water after processing is precipitated, and the sludge after precipitation enters sludge collecting pit, follow-up to carry out press filtration processing by filter-pressing device,
Filtrate obtained by press filtration enters after the regulation that the second regulating reservoir carries out water and water quality, gained solid sludges outward transport processing, precipitation
Supernatant be discharged into membrane chemical reactor（MCR）In, carry out suspension removal.
It is therefore preferred that the first regulating reservoir, sedimentation basin, sludge that the waste water pretreatment system includes being sequentially connected are received
Ji Chi, filter-pressing device, the second regulating reservoir, membrane chemical reactor.
In order to save equipment cost, it is regulating reservoir that can merge the first regulating reservoir and the second regulating reservoir, it is highly preferred that described
Waste water pretreatment system includes regulating reservoir, sedimentation basin, sludge collecting pit, filter-pressing device, membrane chemical reactor, wherein, regulating reservoir
One end be connected successively with sedimentation basin, sludge collecting pit, filter-pressing device, the other end of regulating reservoir is connected with membrane chemical reactor,
The other end of the filter-pressing device also leads to regulating reservoir.
In order to realize step（2）Purpose, another preferred embodiment is：By step（1）By the first regulating reservoir
Waste water after processing is discharged into the first DF concentration basins（Contain DF films）, the mixed liquor in the first DF concentration basins is pumped into the progress of DF films dense
Contracting, DF production water enters DF and produces pond, and the mixed liquor after concentration enters the 2nd DF concentration basins, and the sludge of the 2nd DF concentration basins bottom enters
Enter sludge collecting pit, follow-up to carry out press filtration processing by filter-pressing device, the filtrate obtained by press filtration enters water-filling into the second regulating reservoir
The regulation of amount and water quality, gained solid sludges outward transport processing.
It is preferred that the waste water pretreatment system includes the first regulating reservoir, the first DF concentration basins, the DF being sequentially connected
Produce pond, the 2nd DF concentration basins, sludge collecting pit, filter-pressing device and the second regulating reservoir.
In order to save equipment cost, it is regulating reservoir, the first DF concentration basins that can merge the first regulating reservoir and the second regulating reservoir
Merge into DF concentration basins with the 2nd DF concentration basins, it is highly preferred that the waste water pretreatment system include regulating reservoir, DF concentration basins,
DF productions pond, sludge collecting pit, filter-pressing device；Wherein, one end of regulating reservoir is connected with DF concentration basins, DF productions pond successively, DF
Concentration basin is also connected with sludge collecting pit, filter-pressing device successively, and the other end of the filter-pressing device also leads to regulating reservoir, the DF
Return duct is additionally provided between concentration basin and DF productions pond.
Preferably, first cartridge filter and the second cartridge filter use 5 μm of filter core.
Antisludging agent is added in the waste water being pumped into respectively in the first cartridge filter and the second cartridge filter for convenience,
Preferably, between the waste water pretreatment system and the first cartridge filter, between nanofiltration device and the second cartridge filter
Provided with dosing tank.
Compared with prior art, the utility model has the advantages that：
The utility model provides a kind of processing system of Ni-containing Plating Wastewater, including the Wastewater Pretreatment system being sequentially connected
After system, the first cartridge filter, nanofiltration device, the second cartridge filter and reverse osmosis unit, wastewater treatment, reverse osmosis unit
Water outlet can be up to standard；The system architecture is simple, can significantly reduce the usage amount of chemical agent, reduces sludge quantity and secondary pollution.
Brief description of the drawings
Fig. 1 is the connection diagram of system described in embodiment 1.
Fig. 2 is the connection diagram of system described in embodiment 2.
Fig. 3 is the connection diagram of system described in embodiment 3.
Fig. 4 is the connection diagram of system described in embodiment 4.
Fig. 5 is another connection diagram of system described in embodiment 2.
Fig. 6 is another connection diagram of system described in embodiment 3.
Fig. 7 is another connection diagram of system described in embodiment 4.
Description of reference numerals：1- waste water pretreatment systems；The cartridge filters of 2- first；That filter device of 3-；4- second ensures public security
Filter；5- reverse osmosis units；6- dosing tanks；7- return ducts；8- regulating reservoirs；9-DF concentration basins；The regulating reservoirs of 111- first；112-
Sedimentation basin；113- sludge collecting pits；114- filter-pressing devices；The regulating reservoirs of 115- second；116- more medium filters；117- ultrafiltration is filled
Put；118- backwashing pumps；119- intermediate pools；121- membrane chemical reactors；The DF concentration basins of 131- the first；132-DF produces pond；
The DF concentration basins of 133- the 2nd.
Embodiment
The utility model patent is further described with reference to specification drawings and specific embodiments.Wherein,
Being given for example only property of accompanying drawing illustrates that expression is only schematic diagram, rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；For
The embodiment of the utility model patent is better described, some parts of accompanying drawing have omission, zoomed in or out, does not represent real
The size of border product；It will be understood by those skilled in the art that it is to manage that some known features and its explanation, which may be omitted, in accompanying drawing
Solution.
Embodiment 1
As shown in figure 1, a kind of processing system of Ni-containing Plating Wastewater is present embodiments provided, including the waste water being sequentially connected
Pretreatment system 1, the first cartridge filter 2, nanofiltration device 3, the second cartridge filter 4 and reverse osmosis unit 5.
The operation principle of present treatment system is：（1）Alkali is first added into Ni-containing Plating Wastewater, regulation Ni-containing Plating Wastewater
PH value is 4.5~5.5；（2）The suspension adjusted in the waste water after pH, bacterium, virus, colloid, macromolecular are removed, makes waste water
Turbidity is less than 1, SDI and is less than 5；（3）By step（2）Waste water after processing is pumped into the first cartridge filter 2（And add into waste water
Enter antisludging agent）；（4）By step（3）The water outlet of first cartridge filter 2 is pumped into nanofiltration device 3；（5）By step（4）Nanofiltration is filled
The waste water after 3 filterings is put to be pumped into the second cartridge filter 4；（6）By step（5）Waste water after the processing of second cartridge filter 4
It is pumped into reverse osmosis unit 5, the water outlet of reverse osmosis unit 5 can be up to standard.
Step（3）The first cartridge filter 2 and step（5）The second cartridge filter 4 filtering be mainly used in before retention
Put the mechanical admixture that may be leaked in pipeline, equipment or the particle of rupture, it is ensured that the cleannes of follow-up counter-infiltration system water inlet, with
The mechanical admixture of anti-prime filter leaks enters reverse-osmosis membrane element, and this particle may puncture reverse osmosis after accelerating through high-pressure pump
Membrane element, causes the leakage of a large amount of salts, while the impeller of high-pressure pump may be scratched.Step（4）Nanofiltration device 3 filter
Separating mechanism is screening and dissolving diffusion and deposits, while having electrical charge rejection effect again, can effectively remove divalence and multivalence
Ion, all kinds of materials for removing molecular weight about 200~1000, can partly remove the thing of monovalention and molecular weight less than 200
Matter, is filtered by nanofiltration device 3, and most divalence and multivalent ion have been concentrated in dope, after can mitigating significantly
The pressure of continuous counter-infiltration system, extends the life-span of reverse-osmosis membrane element.Step（6）Reverse osmosis unit 5 can remove processing water in
The impurity such as most salinities, colloid, bacterium, virus, bacterial endotoxin and most of organic matter, due to the existing nanofiltration of leading portion
Device 3 removes the divalence and multivalent ion of the overwhelming majority, is largely monovalence pollutant into the water of counter-infiltration system, dirty
Stifled situation can be alleviated significantly.
Above-mentioned steps（1）And step（2）For the preprocessing process of waste water, realized by waste water pretreatment system 1.
In the present embodiment, first cartridge filter and the second cartridge filter use 5 μm of filter core.
For convenience scale inhibition is added in the waste water being pumped into respectively in the first cartridge filter 2 and the second cartridge filter 4
In agent, the present embodiment, between the cartridge filter 2 of waste water pretreatment system 1 and first, nanofiltration device 3 and second ensured public security
Dosing tank 6 is equipped between filter 4.
Embodiment 2
To realize step in embodiment 1（2）Purpose, waste water pretreatment system described in the present embodiment includes being sequentially connected
First regulating reservoir 111, sedimentation basin 112, sludge collecting pit 113, filter-pressing device 114, the second regulating reservoir 115, more medium filter
116 and ultrafiltration apparatus 117.
The preprocessing process of the waste water pretreatment system is：By step（1）Waste water after the processing of the first regulating reservoir 111
Precipitated into sedimentation basin 112, the sludge after precipitation enters sludge collecting pit 113, follow-up to be pressed by filter-pressing device 114
Filter is handled, and the filtrate obtained by press filtration enters at the regulation that the second regulating reservoir 115 carries out water and water quality, gained solid sludges outward transport
Supernatant after reason, precipitation is pumped into more medium filter 116, and filtration treatment, multi-medium filtering are carried out to the suspension in waste water
Effluent quality SDI≤4 of device 116；The water outlet of more medium filter 116 is pumped into ultrafiltration apparatus 117（There is very much milipore filter）, filtered
Reaction, water outlet is temporarily stored in the ultrafiltration water tank of ultrafiltration apparatus, backwashing pump 118 is provided with ultrafiltration apparatus 117, using backwashing pump 118
The water for extracting ultrafiltration concentrated water side washes away to milipore filter, and pollutant is to milipore filter in the case of realizing interior circulation, drop low-yield water
Blockage of the micro orifice, regularly takes the water in ultrafiltration water tank to carry out backwash to milipore filter using pumping.
In the present embodiment, the ultrafiltration apparatus 117 is provided with backwashing pump 118, and backwashing pump 118 extracts the water of ultrafiltration concentrated water side
Milipore filter is washed away, interior circulation is realized.
In order to save equipment cost, it is regulating reservoir 8 that can merge the first regulating reservoir 111 and the second regulating reservoir 115, i.e., described
Waste water pretreatment system includes regulating reservoir 8, sedimentation basin 112, sludge collecting pit 113, filter-pressing device 114, more medium filter 116
With ultrafiltration apparatus 117, wherein, one end of regulating reservoir 8 successively with sedimentation basin 112, sludge collecting pit 113, the phase of filter-pressing device 114
Even, the other end of regulating reservoir 8 is connected with more medium filter 116 and ultrafiltration apparatus 117 successively, the filter-pressing device 114 it is another
One end also leads to regulating reservoir 8.
In order to adjust the water of system below, improve the life-span of pump, convenient maintenance, in the present embodiment, second regulation
Intermediate pool 119 is additionally provided between pond 115 and more medium filter 116.
Embodiment 3
To realize step in embodiment 1（2）Purpose, waste water pretreatment system described in the present embodiment includes being sequentially connected
First regulating reservoir 111, sedimentation basin 112, sludge collecting pit 113, filter-pressing device 114, the second regulating reservoir 115, membrane chemical reactor
121。
The preprocessing process of the waste water pretreatment system is：By step（1）Waste water after the processing of the first regulating reservoir 111
Precipitated into sedimentation basin 112, the sludge after precipitation enters sludge collecting pit 113, follow-up to be pressed by filter-pressing device 114
Filter is handled, and the filtrate obtained by press filtration enters at the regulation that the second regulating reservoir 115 carries out water and water quality, gained solid sludges outward transport
Supernatant after reason, precipitation is discharged into membrane chemical reactor 121（MCR）In, carry out suspension removal.
In order to save equipment cost, it is regulating reservoir 8, this implementation that can merge the first regulating reservoir 111 and the second regulating reservoir 115
In example, the waste water pretreatment system includes regulating reservoir 8, sedimentation basin 112, sludge collecting pit 113, filter-pressing device 114, membranization
Reactor 121, wherein, one end of regulating reservoir 8 is connected with sedimentation basin 112, sludge collecting pit 113, filter-pressing device 114 successively, adjusts
The other end in section pond 8 is connected with membrane chemical reactor 121, and the other end of the filter-pressing device 114 also leads to regulating reservoir 8.
Embodiment 4
To realize step in embodiment 1（2）Purpose, waste water pretreatment system described in the present embodiment includes being sequentially connected
First regulating reservoir 111, the first DF concentration basins 131, DF productions pond 132, the 2nd DF concentration basins 133, sludge collecting pit 113, press filtration
The regulating reservoir 115 of device 114 and second.
The preprocessing process of the waste water pretreatment system is：By step（1）Waste water after the processing of the first regulating reservoir 111
It is discharged into the first DF concentration basins 131（Contain DF films）, the mixed liquor in the first DF concentration basins 131 is pumped into DF films and concentrated, DF
Produce water and enter DF productions pond 132, the mixed liquor after concentration enters the 2nd DF concentration basins 133, the dirt of the bottom of the 2nd DF concentration basins 133
Mud enters sludge collecting pit 113, follow-up to carry out press filtration processing by filter-pressing device 114, and the filtrate obtained by press filtration enters second and adjusted
Save the regulation that pond 115 carries out water and water quality, gained solid sludges outward transport processing.
In order to save equipment cost, it is regulating reservoir 8, the first DF that can merge the first regulating reservoir 111 and the second regulating reservoir 115
The DF concentration basins 133 of concentration basin 131 and the 2nd are merged into DF concentration basins 9, the present embodiment, and the waste water pretreatment system includes adjusting
Save pond 8, DF concentration basins 9, DF productions pond 132, sludge collecting pit 113, filter-pressing device 114；Wherein, one end of regulating reservoir 8 is successively
It is connected with DF concentration basins 9, DF productions pond 132, DF concentration basins 9 are also connected with sludge collecting pit 113, filter-pressing device 114 successively, institute
The other end for stating filter-pressing device 114 also leads to be additionally provided with return duct between regulating reservoir 8, DF concentration basins 9 and DF the production pond 132
7。
Above-described embodiment of the present utility model is used for the purpose of clearly demonstrating the utility model example, and not
It is the restriction to the utility model patent working mode.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, there is no need and unable to give thoroughly all embodiments
Lift.All any modifications, equivalent substitutions and improvements made within the spirit and spirit of the utility model patent etc., all should
Within the utility model Patent right requirement protection domain.
Claims (9)
1. a kind of processing system of Ni-containing Plating Wastewater, it is characterised in that including the waste water pretreatment system being sequentially connected（1）、
First cartridge filter（2）, nanofiltration device（3）, the second cartridge filter（4）And reverse osmosis unit（5）.
2. the processing system of Ni-containing Plating Wastewater according to claim 1, it is characterised in that the waste water pretreatment system
Including the first regulating reservoir being sequentially connected（111）, sedimentation basin（112）, sludge collecting pit（113）, filter-pressing device（114）, second
Regulating reservoir（115）, more medium filter（116）And ultrafiltration apparatus（117）.
3. the processing system of Ni-containing Plating Wastewater according to claim 2, it is characterised in that second regulating reservoir
（115）And more medium filter（116）Between be additionally provided with intermediate pool（119）.
4. the processing system of Ni-containing Plating Wastewater according to claim 1, it is characterised in that the waste water pretreatment system
Including the first regulating reservoir being sequentially connected（111）, sedimentation basin（112）, sludge collecting pit（113）, filter-pressing device（114）, second
Regulating reservoir（115）, membrane chemical reactor（121）.
5. the processing system of Ni-containing Plating Wastewater according to claim 1, it is characterised in that the waste water pretreatment system
Including the first regulating reservoir being sequentially connected（111）, the first DF concentration basins（131）, DF production pond（132）, the 2nd DF concentration basins
（133）, sludge collecting pit（113）, filter-pressing device（114）With the second regulating reservoir（115）.
6. the processing system of Ni-containing Plating Wastewater according to claim 2, it is characterised in that the ultrafiltration apparatus（117）
It is provided with backwashing pump（118）.
7. the processing system of Ni-containing Plating Wastewater according to claim 5, it is characterised in that the first DF concentration basins
（131）With the 2nd DF concentration basins（133）On be equipped with DF films.
8. the processing system of the Ni-containing Plating Wastewater according to any one of claim 1 to 7, it is characterised in that described first
Cartridge filter（2）With the second cartridge filter（4）Using 5 μm of filter core.
9. the processing system of the Ni-containing Plating Wastewater according to any one of claim 1 to 7, it is characterised in that the waste water
Pretreatment system（1）With the first cartridge filter（2）Between, nanofiltration device（3）With the second cartridge filter（4）Between be equipped with
Dosing tank（6）.
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| CN201621427356.4U CN206408003U (en) | 2016-12-23 | 2016-12-23 | A kind of processing system of Ni-containing Plating Wastewater |
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| CN201621427356.4U CN206408003U (en) | 2016-12-23 | 2016-12-23 | A kind of processing system of Ni-containing Plating Wastewater |
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| CN206408003U true CN206408003U (en) | 2017-08-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517597A (en) * | 2016-12-23 | 2017-03-22 | 广东新大禹环境科技股份有限公司 | Electroplating nickel-containing wastewater treatment system |
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2016
- 2016-12-23 CN CN201621427356.4U patent/CN206408003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517597A (en) * | 2016-12-23 | 2017-03-22 | 广东新大禹环境科技股份有限公司 | Electroplating nickel-containing wastewater treatment system |
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