CN106115875A - Heavy metal separation method, segregation apparatus and piece-rate system - Google Patents
Heavy metal separation method, segregation apparatus and piece-rate system Download PDFInfo
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- CN106115875A CN106115875A CN201610651646.5A CN201610651646A CN106115875A CN 106115875 A CN106115875 A CN 106115875A CN 201610651646 A CN201610651646 A CN 201610651646A CN 106115875 A CN106115875 A CN 106115875A
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- heavy metal
- pipeline
- separation device
- metal separation
- magnetic field
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a heavy metal species separation method, segregation apparatus and piece-rate system.Wherein, heavy metal separation method comprises the steps: to add in treating material to carry magnet；With the mixture carrying magnet, treating material is delivered to inside be applied with in the pipeline in magnetic field；Magnetic field heavy metal acts on, and makes heavy metal separate from treating material.The present invention carries magnet by adding in pending liquid, and in pipeline, apply magnetic field, not only achieve from treating material, isolate heavy metal, but also achieve the recovery of heavy metal, it is to avoid due to the pollution problem caused in heavy metals emission to environment in prior art.Additionally, due to heavy metal is reclaimed, so the content of beary metal in the material after Chu Liing is low, also reduce follow-up processing cost.
Description
Technical field
The present invention relates to Pollutant Treatment technical field, in particular to a heavy metal species separation method, segregation apparatus
And piece-rate system.
Background technology
Heavy metal refers to that proportion is more than the metal of 5 grams every cubic centimetre, such as gold, silver, copper, ferrum, lead etc..Heavy metal element is not
Can be biodegradable, the most but can be enriched with in a large number under the biological magnification of food chain, and enter human body by diet.People
Internal, heavy metal can occur complexing to make them lose biological activity with protein and enzyme etc..In China, due to mining industry with
Developing rapidly of chemical industry, heavy metal or its compound cause increasing pollution to environment.The content of heavy metal is continuous
Being enriched with in the environment, well beyond normal range, directly harm is national healthy.
At present, the improvement of Heavy Metals in Waters is the most also dependent on chemical precipitation or adsorption precipitation method.Wherein, science of law precipitation
Method is the chemical characteristic according to different heavy metals, by adding chemical agent, makes heavy metal and medicine generation chemical reaction produce
Precipitation.Adsorption precipitation method, will be with much money by adding porous mass (such as activated carbon) according to the particle diameter of different heavy metals and surface characteristic
Belong to absorption and be precipitated out.Above two method is all to be precipitated out, heavy metal then heavy metal contaminants from water body
Being discharged to from water body in the external environments such as mud, the heavy metal given off still can be to environment.On it can be seen that
State both of which and fail inherently to solve the problem of heavy metal pollution, and simply heavy metal pollutant carried out transfer and
?.
Summary of the invention
In consideration of it, the present invention proposes a heavy metal species separation method, segregation apparatus and piece-rate system, it is intended to solve existing
Heavy metal processing method is due to can not the heavy metal problem that carries out reclaiming.
One aspect, the present invention proposes a heavy metal species separation method, and the method comprises the steps: to pending thing
Material adds and carries magnet；With the mixture carrying magnet, treating material is delivered to inside be applied with in the pipeline in magnetic field；Magnetic field
Heavy metal in treating material is acted on, makes heavy metal separate from treating material.
Further, in above-mentioned heavy metal separation method, described load magnet includes kernel and is coated on the bag of described kernel
Coating.
Further, in above-mentioned heavy metal separation method, described kernel is iron oxide.
Further, in above-mentioned heavy metal separation method, described clad is polymer dielectric.
It can be seen that the present invention carries magnet by adding in pending liquid, and in pipeline, apply magnetic field, not only
Achieve from treating material, isolate heavy metal, but also achieve the recovery of heavy metal, it is to avoid in prior art
Due to the pollution problem caused in heavy metals emission to environment.Additionally, due to heavy metal is reclaimed, so after Chu Liing
Material in content of beary metal low, also reduce follow-up processing cost.
On the other hand, the present invention proposes a kind of Heavy metal separation device, and this device includes: pipeline, field generator for magnetic
With at least one packaging container；Wherein, described pipeline is hollow housing, and, two sides difference that described hollow housing is relative
It is provided with input pipe and outlet tube；Individual described packaging container is placed in the bottom of described pipeline, and, the opening of each described packaging container
End all sets up；Described field generator for magnetic is connected to described pipeline, makes pending liquid for applying in described pipeline
In heavy metal fall into the magnetic field of described packaging container.
Further, in above-mentioned Heavy metal separation device, the bottom of described pipeline offers multiple through hole, each described through hole
Inwall have circular connector to the outside of described pipeline is the most extended；Each described packaging container and each described circular connector one a pair
Removably connect with answering.
Further, in above-mentioned Heavy metal separation device, the sidewall of described pipeline is provided with switch gate；Each described packaging container
It is the subsider being opened in described duct bottom.
Further, in above-mentioned Heavy metal separation device, described input pipe is coaxially disposed with described outlet tube.
Further, in above-mentioned Heavy metal separation device, described pipeline is the uniform torus of internal diameter, described input pipe
Internal diameter is less than the internal diameter of described pipeline.
Further, in above-mentioned Heavy metal separation device, the direction that applies in described magnetic field is perpendicular to the axle of described input pipe
Line and point to the bottom of described pipeline.
Further, in above-mentioned Heavy metal separation device, described magnetic field is the uniform magnetic field that direction is fixing.
The present invention, by applying magnetic field in pipeline, not only achieves and isolates heavy metal from treating material, and
Also achieve the recovery of heavy metal, it is to avoid prior art is asked due to the pollution that causes in heavy metals emission to environment
Topic.Additionally, due to heavy metal is reclaimed, so the content of beary metal in the material after Chu Liing is low, also reduce follow-up
Processing cost.
Another aspect, the invention allows for a heavy metal species piece-rate system, this system include carry magnet adding set and
Any of the above-described heavy metal species segregation apparatus；Wherein, described load magnet adding set is used for receiving and mix pending liquid and load
Magnet；Described Heavy metal separation device is connected with described load magnet adding set, for receiving and processing and described load magnet
The pending liquid mixed mutually.
Further, in above-mentioned heavy metal piece-rate system, described Heavy metal separation device is even number, and, each two
Described Heavy metal separation device is one group and is connected in parallel the most standby, and the described Heavy metal separation device parallel connection of each group is even
Connect；Input pipe and the outlet tube of the pipeline of each described Heavy metal separation device are mounted on valve
Owing to Heavy metal separation device has the effect above, so having the heavy metal segregative line of this Heavy metal separation device
System also has corresponding technique effect.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
The flow chart of the heavy metal separation method that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the Heavy metal separation device that Fig. 2 provides for the embodiment of the present invention；
The structural representation of the heavy metal piece-rate system that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows the disclosure
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure and should be by embodiments set forth here
Limited.On the contrary, it is provided that these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.It should be noted that in the case of not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Separation method embodiment:
Seeing Fig. 1, Fig. 1 is the flow chart that the embodiment of the present invention also proposed a heavy metal species separation method.As it can be seen,
The method comprises the steps:
Step S1, adds in treating material and carries magnet.Carrying magnet can be by ferromagnetic kernel and the cladding of outer layer
Layer composition.In it, nuclear energy produces stronger paramagnetism, can be iron oxide, such as ferroso-ferric oxide etc..Kernel is preferably ball
Type, clad can be made up of polymer dielectric.When being embodied as, producing high-molecular can be loaded at the peripheral of spheroid kernel
Compound clad, clad can be one or more in PEO, PLA etc., makes macromolecule peripheral band negative charge, adsorbable molten
Heavy metal ion in liquid forms compound.
Step S2, is delivered to inside by treating material with the mixture carrying magnet and is applied with in the pipeline in magnetic field.Specifically
During enforcement, one field generator for magnetic can be set at pipeline external, make pipe interior produce magnetic field by this field generator for magnetic.
Step S3, the heavy metal in treating material is acted on by magnetic field, makes heavy metal separate from treating material.
Under the influence of heavy metal ion, the magnetic of kernel can occur certain change, under the influence of pipeline externally-applied magnetic field, can produce
Different active forces and mobile activity, finally make heavy metal isolate from treating material.
The operation principle of the present embodiment: in metallic compound, the overwhelming majority is paramagnetic, some even ferromagnetism
's.Paramagnetic material has response to magnetic field.From the point of view of atomic structure, form the atom of paramagnetism object, lewis' acid
There is the hypostracum not filled up by electronics.But because it interacts much smaller than energy of thermal motion, the orientation of magnetic moment is random, makes material not
Spontaneous manetization can be formed.By adding a kind of load magnet, the material containing heavy metal is made to stir also in slurrying pond with this load magnet
Mixing, carrying magnet can be made up of the polymer dielectric of ferromagnetic kernel with outer layer.Wherein, ferromagnetic kernel is adsorbable
Heavy metal in material.The polymer dielectric of outer layer is deposited on kernel, neither affects the magneticaction of kernel and heavy metal,
Kernel can be protected in acid, alkali, salt environment not weather again.At mix stages, carry magnet and can combine formation with heavy metal carefully
Little magnetic suspension thing, and under the influence of magnetic source, concentrate migration and be collected
It can be seen that the present embodiment carries magnet by adding in pending liquid, and in pipeline, apply magnetic field, no
Only achieve from treating material, isolate heavy metal, but also achieve the recovery of heavy metal, it is to avoid prior art
In due to the pollution problem caused in heavy metals emission to environment.Additionally, due to heavy metal is reclaimed, so processing
After material in content of beary metal low, also reduce follow-up processing cost.
Segregation apparatus embodiment:
See the structural representation of the Heavy metal separation device that Fig. 2, Fig. 2 provide for the embodiment of the present invention.As it can be seen, should
Device includes: the pipeline 1 of closed at both ends, packaging container 2 and field generator for magnetic (not shown).
Wherein, two sides that pipeline 1 is relative are respectively arranged with input pipe 11 and outlet tube 12.Specifically, pipeline 1 is permissible
Annular solid for closed at both ends.Preferably, input pipe 11 is coaxially disposed with outlet tube 12, and, input pipe 11 and outlet tube 12
Axis coincide or parallel with the axis of pipeline 1.
Packaging container 2 is placed in the bottom of pipeline 1, and, packaging container 2 removably connects with pipeline 1, and packaging container 2 is provided with opening
Holding and set up, the accommodation space of packaging container 2 is connected with pipeline 1 inner space.It should be noted that in the present embodiment
Bottom is the position below pipeline 1.When being embodied as, packaging container 2 can arrange one, two, it is also possible to arranges multiple, storage
The particular number of body 2 can be according to needing separating beavy metal kind corresponding, and each packaging container 2 is for storage one heavy metal species.
Field generator for magnetic is connected to pipeline 1, makes the heavy metal in pending liquid fall into receipts for applying in pipeline 1
Receive the magnetic field of body 2.Specifically, field generator for magnetic can be the magnetic source being arranged at pipeline 1 outer wall, when being embodied as, and this magnetic
Power source may be selected that the coil etc. producing magnetic field, it is of course also possible to be well known to those skilled in the art can produce
Other devices in magnetic field, such as Magnet etc., the concrete form of magnetic source is not done any restriction by the present embodiment.Field generator for magnetic
Can also be magnetisable material, the sidewall of pipeline 1 can arrange an annular space, and magnetisable material can be filled in this annular space
In.
The separation process of the present embodiment: the treating material through mixing mutually with load magnet passes through input pipe with certain speed
11 input to pipeline 1, carry the magnetic suspension thing formed after magnet mixes with heavy metal and are acted on by pipeline 1 internal magnetic field, with
Parabolical track to the moved beneath of pipeline 1, and then falls in packaging container in pipeline 1.Owing to different heavy metals is by magnetic
The ability of field impact is different, so the movement locus of different heavy metal is the most different, so, and the magnetic deposition containing difference heavy metals
Thing can fall in different packaging containers 2, it is achieved that separation and the collection to different heavy metals.Then can will adhere to by washing liquid respectively
Heavy metal on packaging container 2 is washed down, and for subsequent purification or refine, remaining material, after washing, filtering, can regain load
Magnet, drying reusable edible.
It should be noted that the present embodiment is to utilize pipeline 1 magnetic field in downward direction to make heavy metal move downward, Jin Erluo
Enter in receiver, when being embodied as, directly inner tube 2 can be applied radially magnetic field, i.e. B direction shown in Fig. 2 downwards, it is possible to
So that inner tube 2 is applied the magnetic field the most angled with inner tube 2, the component radially downward in this magnetic field is utilized to carry out heavy metal
Adsorb.Additionally, magnetic field can be fixing uniform magnetic field.Preferably, the direction that applies in magnetic field is perpendicular to input pipe 11
Axis and the bottom of sensing pipeline 1.
It can be seen that the present embodiment is by applying magnetic field in pipeline 1, not only achieves and isolate from treating material
Heavy metal, but also achieve the recovery of heavy metal, it is to avoid owing to making in heavy metals emission to environment in prior art
The pollution problem become.Additionally, due to heavy metal is reclaimed, so the content of beary metal in the material after Chu Liing is low, also
Reduce follow-up processing cost.
With continued reference to Fig. 2, figure also show the preferred structure of packaging container 2.As it can be seen, the bottom of pipeline 1 offers
Multiple through holes, the inwall of each through hole has circular connector to the outside of pipeline 1 is the most extended；Packaging container 2 and circular connector can
Dismounting connects.Specifically, packaging container 2 is placed in the outside of pipeline 1, and packaging container 2 is provided with an opening, opening and circular connector
Removably connect.Preferably, packaging container 2 and circular connector screw thread or Flange joint.
In above-described embodiment, packaging container 2 can also be the multiple subsiders being opened in pipeline 1 inner bottom part.The sidewall of pipeline 1
It is provided with switch gate, the magnetic deposit collected in taking out each subsider by this switch gate.
It will be appreciated by those skilled in the art that when the initial flow rate that treating material enters pipeline 1 is bigger, each heavy metal
Between the difference of movement locus the most more apparent, it is simple to the separation of different heavy metals, three track A, track B and the track C in Fig. 2
Being respectively the movement locus of three kinds of different heavy metals, the internal diameter of input pipe 11 is less than the minimum diameter of pipeline 1.Specifically, pipeline 1
Can be the uniform torus of internal diameter, the internal diameter of input pipe 11 be less than this toric internal diameter.
To sum up, the present embodiment, by applying magnetic field in pipeline 1, not only achieves and isolates a huge sum of money from treating material
Belong to, but also achieve the recovery of heavy metal.
Embodiment separation system:
See the structural representation of the heavy metal piece-rate system that Fig. 3, Fig. 3 provide for the embodiment of the present invention.As it can be seen, should
System includes carrying magnet adding set and any of the above-described heavy metal species segregation apparatus.Wherein, magnet adding set and heavy metal are carried
Segregation apparatus is connected.The specific implementation process of Heavy metal separation device sees described above, and the present embodiment is at this no longer
Repeat.When being embodied as, carrying magnet adding set can be a kind of slurrying pond 6 being furnished with agitating device, carries magnet adding set
The treating material of reception and load magnet are stirred mixing, and will carry with the treating material after load magnet be sufficiently mixed
Enter Heavy metal separation device.Heavy metal in the treating material that magnetic field within Heavy metal separation device utilization will receive separates
To accommodating groove.
When being embodied as, can also arrange pump 5 in above-mentioned piece-rate system, the input port of pump 5 is connected with slurrying pond 6, pump 5
Delivery outlet is connected with the input pipe of Heavy metal separation device 3, and pump 5 is for inputting the treating material in slurrying pond 6 to weight
In metal separating device 3.
In above-described embodiment, Heavy metal separation device can be even number, and, each two Heavy metal separation device is one
It is connected in parallel between group and be connected in parallel the most standby, and each group Heavy metal separation device.
Input pipe and the outlet tube of the pipeline of each Heavy metal separation device are mounted on valve, in order to handover operation.
Seeing Fig. 3, keep stop valve 4a Yu 4b to open, stop valve 7a Yu 7b closes.The material mixed by pump 5 dozens to the first heavy metal
In segregation apparatus 3, different magnetic suspension thing alternative affected by magnetic forces is collected.After certain time, close 4a and 4b, with
Shi Kaiqi 7a and 7b, switches to the second Heavy metal separation device 8 that another road is standby by the first Heavy metal separation device 3, keeps
Equipment continuously runs.Until by the second Heavy metal separation device 8 deposition magnetic suspension thing clean out after, can return fill stand-by,
Again the first Heavy metal separation device 3 is switched to duty.
Owing to Heavy metal separation device has the effect above, so having the heavy metal segregative line of this Heavy metal separation device
System also has corresponding technique effect.
It should be noted that Heavy metal separation device, piece-rate system and the separation method principle phase in the embodiment of the present invention
Seemingly, relevant part can be cross-referenced.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. a heavy metal species separation method, it is characterised in that the method comprises the steps:
Add in treating material and carry magnet；
With the mixture carrying magnet, treating material is delivered to inside be applied with in the pipeline in magnetic field；
Heavy metal in treating material is acted on by magnetic field, makes heavy metal separate from treating material.
Heavy metal separation method the most according to claim 1, it is characterised in that
Described load magnet includes kernel and is coated on the clad of described kernel.
Heavy metal separation method the most according to claim 2, it is characterised in that
Described kernel is iron oxide.
Heavy metal separation method the most according to claim 2, it is characterised in that
Described clad is polymer dielectric.
5. a Heavy metal separation device, it is characterised in that including: the pipeline (1) of closed at both ends, field generator for magnetic and at least
One packaging container (2)；Wherein,
Two sides that described pipeline (1) is relative are respectively arranged with input pipe (11) and outlet tube (12)；
Each described packaging container (2) is placed in the bottom of described pipeline (1), and, the opening of each described packaging container (2) is the most upwards
Arrange；
Described field generator for magnetic is connected to described pipeline (1), for applying to make in pending liquid in described pipeline (1)
Heavy metal falls into the magnetic field of described packaging container (2).
Heavy metal separation device the most according to claim 5, it is characterised in that
The bottom of described pipeline offers multiple through hole, and the inwall of each described through hole has to the outside of described pipeline (1) is the most extended
Circular connector；
Each described packaging container (2) removably connects correspondingly with each described circular connector.
Heavy metal separation device the most according to claim 6, it is characterised in that
The sidewall of described pipeline (1) is provided with switch gate；
Each described packaging container (2) is the subsider being opened in described pipeline (1) bottom.
8. according to the Heavy metal separation device according to any one of claim 5 to 7, it is characterised in that described input pipe (11)
It is coaxially disposed with described outlet tube (12).
Heavy metal separation device the most according to Claim 8, it is characterised in that
Described pipeline (1) is the uniform torus of internal diameter, and the internal diameter of described input pipe (11) is less than the internal diameter of described pipeline (1).
10. according to the Heavy metal separation device according to any one of claim 5 to 7, it is characterised in that the applying in described magnetic field
Direction is perpendicular to the axis of described input pipe (11) and points to the bottom of described pipeline (1).
11. according to the Heavy metal separation device according to any one of claim 5 to 7, it is characterised in that described magnetic field is direction
Fixing uniform magnetic field.
12. 1 heavy metal species piece-rate systems, it is characterised in that include carrying magnet adding set and as appointed in claim 5 to 11
One described Heavy metal separation device；Wherein,
Described load magnet adding set is used for receiving and mixing pending liquid and carry magnet；
Described Heavy metal separation device is connected with described load magnet adding set, for receiving and processing and described load magnet phase
The pending liquid of mixing.
13. heavy metal piece-rate systems according to claim 12, it is characterised in that
Described Heavy metal separation device is even number, and, Heavy metal separation device described in each two is one group and is connected in parallel
The most standby, and respectively the described Heavy metal separation device of group is connected in parallel；
Input pipe and the outlet tube of the pipeline of each described Heavy metal separation device are mounted on valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610651646.5A CN106115875B (en) | 2016-08-10 | 2016-08-10 | Heavy metal separation method, separation device and separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651646.5A CN106115875B (en) | 2016-08-10 | 2016-08-10 | Heavy metal separation method, separation device and separation system |
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| Publication Number | Publication Date |
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| CN106115875A true CN106115875A (en) | 2016-11-16 |
| CN106115875B CN106115875B (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502873A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for treating heavy metal ions in wastewater |
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| US5855790A (en) * | 1994-02-07 | 1999-01-05 | Selective Environmental Technologies, Inc. | Magnetic particles, a method for the preparation thereof and their use in the purification of solutions |
| US20050258103A1 (en) * | 2001-05-30 | 2005-11-24 | Cort Steven L | Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| CN101500949A (en) * | 2006-08-16 | 2009-08-05 | 西门子公司 | Method and device for eliminating foreign matters present in dissolved form from waste water |
| CN203154954U (en) * | 2012-08-31 | 2013-08-28 | 江苏岱洛医疗科技有限公司 | Heavy metal separating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5855790A (en) * | 1994-02-07 | 1999-01-05 | Selective Environmental Technologies, Inc. | Magnetic particles, a method for the preparation thereof and their use in the purification of solutions |
| US20050258103A1 (en) * | 2001-05-30 | 2005-11-24 | Cort Steven L | Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| CN101500949A (en) * | 2006-08-16 | 2009-08-05 | 西门子公司 | Method and device for eliminating foreign matters present in dissolved form from waste water |
| CN203154954U (en) * | 2012-08-31 | 2013-08-28 | 江苏岱洛医疗科技有限公司 | Heavy metal separating device |
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| CN109502873A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for treating heavy metal ions in wastewater |
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