CN109928449A - A method of for removing heavy metal contaminants in water body - Google Patents
A method of for removing heavy metal contaminants in water body Download PDFInfo
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- CN109928449A CN109928449A CN201711357492.XA CN201711357492A CN109928449A CN 109928449 A CN109928449 A CN 109928449A CN 201711357492 A CN201711357492 A CN 201711357492A CN 109928449 A CN109928449 A CN 109928449A
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- heavy metal
- water body
- metal contaminants
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Abstract
The invention discloses a kind of methods for removing heavy metal contaminants in water body, step includes setting path, first workshop section, second workshop section, in water body of the introducing containing heavy metal contaminants in path, the water body is subjected to physical separation program, setting infiltration adsorption layer, by treated, water body is exposed to adsorbing separation program, the present invention may include in the pre-filtering processing before the physical separation step with another adsorbing separation after removing solid pollutant in the fluid stream to may additionally include the adsorbing separation, with target heavy metal contaminants as the removing target heavy metal contaminants different from the target that initial adsorption separates or the target class separated with the initial adsorption.
Description
Technical field
The present invention relates to slaughtering animal equipment technical fields, and in particular to one kind is for removing heavy metal contaminants in water body
Method.
Background technique
Production water is generally comprised within the oil removed during batch oil/water separating technology using water.For example, coming from North Sea oil field
Production water include about 15-30 parts per million (ppm) containing benzene, toluene, ethylbenzene and dimethylbenzene (BTEX) dispersed oil；Concentration
The naphthalene, phenanthrene, dibenzothiophen (NPD), polycyclic aromatic hydrocarbon (PAH), phenol and the organic acid that are about 0.06ppm to about 760ppm.In addition, these are given birth to
Producing water includes toxic heavy metal, such as concentration is less than about 0.1ppb to the mercury of about 82ppb, cadmium, lead and copper.With high concentration
The presence of the complex mixture for the ingredient that dissolving salt combines may be removed to using the heavy metal for being currently available that routine techniques carries out
It goes to bring challenges.
Specifically, the prior art for removing metal and mercury from the seawater of pollution includes: active carbon adsorption, sulfur impregnated work
Property carbon, micro emulsion liquid film, ion exchange and colloid precipitate flotation.These technologies may not be suitable for water process, the reason is that golden
Belong to load (such as metal adsorption rate be less than sorbent material quality 20%) and selectively (by other in underground water enrich from
Son interference) it is poor.In addition, mercury can exist with the substance in addition to simple substance.Therefore, method therefor allows for removing these other
Substance, such as methyl mercury etc..In addition, their product deficient in stabilities for carried metal, make it not and can be used as permanent give up
The form Direct Disposal of gurry falls.As a result, it is desirable to carry out secondary treatment to dispose or stablize the mercury of separation or load the product of mercury.
Also it is difficult to remove from non-aqueous sludge, the liquid of absorption or partially or completely in the soil of stabilized sludge and mercury pollution
Mercury is removed, the reason is as follows that: (1) non-aqueous nature of some wastes is difficult to enter leachant, and (2) have some of large volume
Waste stream makes thermal desorption procedure expensive, and (3) some waste streams processing due to the property of the waste technically
It is difficult to carry out.
Repair and industrial separation other metals of interest include but is not limited to silver, lead, arsenic, uranium, plutonium, neptunium, americium, cadmium and its
Combination.Current separation method includes but is not limited to ion exchange, precipitating, UF membrane and combinations thereof.These methods usually have
Low efficiency, complex process and the high disadvantage of operating cost.
Summary of the invention
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a method of for removing heavy metal contaminants in water body, on solving
State the problem of proposing in background technique.
(2) technical solution
Of the invention is achieved through the following technical solutions: the invention proposes a kind of for removing heavy metal contaminants in water body
Method, comprising the following steps:
1) path, the first workshop section, the second workshop section are set,
2) in path introduce the water body containing heavy metal contaminants,
3) water body is subjected to physical separation program,
4) setting infiltration adsorption layer,
5) by treated in above-mentioned steps 3, water body is exposed to adsorbing separation program.
Furthermore, the path can be by each of the water body comprising heavy metal contaminants and target heavy metal contaminants
Kind substance can be introduced into system together along path to be removed.
Furthermore, first workshop section includes phase-separating device, and the phase-separating device is designed as receiving by gravity
The droplet of element material of the collection comprising the target heavy metal contaminants separated from the water body.
Furthermore, second workshop section includes: designed for removing each of target heavy metal contaminants from water body
The slurry mix of the adsorbent nano material of kind substance.
Furthermore, the heavy metal contaminants include mercury, arsenic, cadmium, lead, silver, uranium, plutonium, neptunium, americium, other heavy metals
One of or combinations thereof.
Furthermore, the physical separation program includes mutually separating, and it includes from institute that the phase separation is collected by gravity
State the droplet of the element material of the target heavy metal contaminants separated in water body.
Furthermore, the exposure step includes using to be designed as removing the target heavy metal contaminants from water body
Various substances adsorbent nano material.
Furthermore, the adsorbent nano material includes being made of the self-assembled monolayer (SAMMS) on mesoporous supports
Porous particle.
(3) beneficial effect
The present invention compared with the existing technology, has the advantages that
A kind of method for removing heavy metal contaminants in water body that the present invention mentions will contain heavy metal to be removed first
In the fluid stream introducing path of pollutant, the heavy metal contaminants include the various substances of target heavy metal contaminants.It connects down
Come, the fluid stream can be subjected to physical separation program to remove the simple substance for including the target heavy metal contaminants from the fluid
The target heavy metal contaminants of substance, to reduce the total concentration of target heavy metal contaminants described in the fluid stream.Then, mesh
The fluid stream that indicated weight metal pollutant total concentration reduces can be exposed to adsorbing separation program, be wrapped with removing from the fluid
Include the target heavy metal of the element material of the target heavy metal contaminants of additional quantity and the additional quantity of other materials
Pollutant, so that the concentration of the target heavy metal contaminants is further reduced to acceptable level.The method can wrap
It includes and handles in the pre-filtering before the physical separation step to remove solid pollutant from the fluid stream.The method is also
It may include another adsorbing separation after the adsorbing separation, to remove the target weight different from the target that initial adsorption separates
Target heavy metal contaminants as metal pollutant or the target class separated with the initial adsorption.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer.It should be appreciated that tool described herein
Body embodiment is only used to explain the present invention, is not intended to limit the present invention.
In one embodiment, adsorbent material can be provided in the reactor before introducing fluid stream from the first workshop section
Material alternatively, sorbent material and the fluid from the first workshop section can be concomitantly introduced into path, and makes it enter reaction
It is mixed before device.In this embodiment, the amount of introduced sorbent material may be crucial, it may be desired to which it is suitable to determine
Amount is to provide optimal heavy metal contaminants removal ability.Specifically, it may be desired to sorbent material amount can with from the
The fluid flow of one workshop section and the amount of the pollutant in fluid stream are proportional.In general, the amount of pollutant can be constant, so that
Fluid flow can be the parameter for needing to control.
In order to control the flow from the first workshop section, flow control valve can be provided in the downstream of the first workshop section.In addition, can
It helps to determine flow before adjusting control valve to appropriate level to provide flowmeter between the first workshop section and control valve.It answers
Pay attention to, if it is possible to which the reading based on flowmeter, which is adjusted, comes from first workshop section's flow, then can not need control valve.
In order to control by sorbent material from reservoir introducing path so that the amount of sorbent material can with come from the first work
The amount of pollutant is proportional in the fluid flow and the fluid stream of section, can provide metering pump to allow manual or automatic control
The amount of introduced sorbent material.
In operation, it can will include the contaminated fluid lead-in path of heavy metal contaminants in source and send to the first work
Section.In one embodiment, the contaminated fluid flow from source can be controlled by control valve, to allow volume appropriate
It continuously flows into the first workshop section.
After reaching the first workshop section, pollutant can be introduced into coalescence unit by entrance.Once entering coalescence unit
In, contaminated fluid stream can be guided by coalescing element, to cause the object for removing the element material of heavy metal contaminants
Manage separation process.Particularly, when fluid enters element, fluid stream can be separated into discontinuous phase and continuous phase.Hereafter, when this
When two phases continue to pass through element, discontinuous phase can be made to coalesce by saturation depth agglomeration process.Specifically, coalescence unit is permitted
Perhaps " analog material " attraction " analog material ", to draw the micro- of the suitable minor diameter in discontinuous phase comprising heavy metal element material
Drop, and the droplet of these suitable minor diameters is made to merge or combine the droplet for forming significant larger diameter.Over time,
The droplet of the larger diameter can form even greater droplet.When they have become it is sufficiently large when, these sufficiently large droplets
The density and interfacial surface tension of interior heavy metal tend to that these droplets are discharged in the presence of gravity from coalescing element, and
And coalescence unit bottom is deposited to from continuous phase.The discharge liquid of the element material comprising separated heavy metal can then be received
Collect in the container of coalescence unit then to dispose.
The fluid of coalescence unit from the first workshop section then can passage path lead to the second workshop section.In an embodiment
In, at the second workshop section, reactor can be substantially saturated with sorbent material.Alternatively, sorbent material can with come from the first work
The fluid stream of section is concomitantly introduced into path, is introduced into the fluid in reactor/sorbent material mixture by entrance to be formed.With
Fluid/sorbent material mixture filling reactor and the position close to top sensor, when reactor is full of, top
Sensor can transmit signal to PLC.After receiving signal, PLC can be acted to be then turned off the inlet valve of reactor.It answers
Note that sorbent material as described above can be used for from contaminated fluid removing heavy metal-polluted during the filling process
Object is contaminated to provide substantially clean fluid.Specifically, in sorbent material, (it can be mesoporous in one embodiment
SAMMS in the presence of), the hole for the particle for allowing the stream to flow through in SAMMS material.In this some holes, target is heavy metal-polluted
Other ingredients of for example all mercury substance and fluid stream of dye object together with the molecule that is designed as attracting and combining these pollutants
The contact of chemicals single layer.In this way, these specific pollutants can be trapped in SAMMS material and remove from fluid stream.
A kind of method for removing heavy metal contaminants in water body that the present invention mentions will contain weight to be removed first
In the fluid stream introducing path of metal pollutant, the heavy metal contaminants include the various substances of target heavy metal contaminants.
Next, it includes the target heavy metal contaminants that the fluid stream, which can be subjected to physical separation program to remove from the fluid,
The target heavy metal contaminants of element material, to reduce the total concentration of target heavy metal contaminants described in the fluid stream.With
Afterwards, the fluid stream that target heavy metal contaminants total concentration reduces can be exposed to adsorbing separation program, with from the fluid
Remove the target of the element material of the target heavy metal contaminants including additional quantity and the additional quantity of other materials
Heavy metal contaminants, so that the concentration of the target heavy metal contaminants is further reduced to acceptable level.The side
Method may include handling in the pre-filtering before the physical separation step to remove solid pollutant from the fluid stream.It is described
Method may additionally include another adsorbing separation after the adsorbing separation, different from the target that initial adsorption separates to remove
Target heavy metal contaminants or the target class that is separated with the initial adsorption as target heavy metal contaminants.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and range is defined.Without departing from the design concept of the invention, ordinary people in the field is to technology of the invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
It is all described in the claims.
Claims (8)
1. a kind of method for removing heavy metal contaminants in water body, it is characterised in that: the following steps are included:
1) path, the first workshop section, the second workshop section are set,
2) in path introduce the water body containing heavy metal contaminants,
3) water body is subjected to physical separation program,
4) setting infiltration adsorption layer,
5) by treated in above-mentioned steps 3, water body is exposed to adsorbing separation program.
2. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
Path can draw the various substances of the water body comprising heavy metal contaminants and target heavy metal contaminants along path together
Enter in system and removes.
3. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
First workshop section includes phase-separating device, and the phase-separating device is designed as collecting the institute comprising separating from the water body by gravity
State the droplet of the element material of target heavy metal contaminants.
4. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
Second workshop section includes: the adsorbent nano material designed for removing the various substances of target heavy metal contaminants from water body
Slurry mix.
5. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
Heavy metal contaminants include one of mercury, arsenic, cadmium, lead, silver, uranium, plutonium, neptunium, americium, other heavy metals or combinations thereof.
6. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
Physical separation program includes mutually separating, and the phase separation collects the target weight comprising separating from the water body by gravity
The droplet of the element material of metal pollutant.
7. a kind of method for removing heavy metal contaminants in water body according to claim 1, it is characterised in that: described
Exposure step includes the adsorbent nanometer using the various substances for being designed as removing the target heavy metal contaminants from water body
Material.
8. a kind of method for removing heavy metal contaminants in water body according to claim 6, it is characterised in that: described
Adsorbent nano material includes the porous particle made of the self-assembled monolayer (SAMMS) on mesoporous supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357492.XA CN109928449A (en) | 2017-12-16 | 2017-12-16 | A method of for removing heavy metal contaminants in water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357492.XA CN109928449A (en) | 2017-12-16 | 2017-12-16 | A method of for removing heavy metal contaminants in water body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109928449A true CN109928449A (en) | 2019-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711357492.XA Pending CN109928449A (en) | 2017-12-16 | 2017-12-16 | A method of for removing heavy metal contaminants in water body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109928449A (en) |
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2017
- 2017-12-16 CN CN201711357492.XA patent/CN109928449A/en active Pending
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Application publication date: 20190625 |