CN206457352U - Silver in waste recovery system - Google Patents
Silver in waste recovery system Download PDFInfo
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- CN206457352U CN206457352U CN201621248359.1U CN201621248359U CN206457352U CN 206457352 U CN206457352 U CN 206457352U CN 201621248359 U CN201621248359 U CN 201621248359U CN 206457352 U CN206457352 U CN 206457352U
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- filter
- silver
- resin cation
- recovery system
- waste recovery
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Abstract
The utility model discloses a kind of silver in waste recovery system.The silver in waste recovery system includes resin cation filter, regenerating unit, retracting device, electrodialysis plant and reactive tank.Resin cation filter, retracting device, electrodialysis plant and reactive tank sequential communication successively；Pretreatment unit has water inlet；Resin cation filter, which has, is used for the outlet for exchanging liquid discharge for after exchange is handled；Regenerating unit can add regenerated liquid into resin cation filter and form regeneration displacement liquid to carry out regeneration displacement to resin cation filter；Electrodialysis plant is used to carry out regeneration displacement liquid concentration, and reactive tank is used to supply the reducing agent of addition to carry out reduction reaction with the regeneration displacement liquid after electrodialysis plant concentration.The silver in waste recovery system is environmentally friendly and cost is low.
Description
Technical field
The utility model is related to field of waste water treatment, more particularly to a kind of silver in waste recovery system.
Background technology
The technique of silver is reclaimed in routine scale at present from silver-containing waste water, is all used substantially：Pretreating process (containing filter core/
Sock filtration and pH regulation) and resin adsorption exchange silver ion preliminary process.Subsequent technique mainly has two kinds：(1) burn and carry
Pure method：After i.e. using resin is burned, being present in silver in ashes after resin adsorption saturation list is can obtain by washing dissolving, reduction
Matter silver.But burning method is used resin as disposable material, integrated operation cost is high, i.e., economy is poor.Will absorption
Resin after saturation is burned, and discharges substantial amounts of pernicious gas and " three cause " material, and intractability is big, and environmental benefit is poor.(2) embrane method
Purification：Embrane method device (ultrafiltration+counter-infiltration or Nanofiltering membrane) is used after resin elution after adsorption saturation is got off
The device reclaimed after separation.Concentrating and separating is carried out using embrane method device, water inlet processing requirement is high, anti-variation water quality ability compared with
Weak, the rate of recovery is low (general 50-70%), and silver ion can cause the use of membrane component as the catalyst of membrane component material degradation
Short life (general 1-2), causes integrated operation costly indirectly.And membranous system operating pressure is high, energy consumption is also high.Membrane component is
The non-dismountable formula overall package of rolling, when occurring dirty stifled more serious, cleaning performance is poor, and follow-up operation is unstable.
Utility model content
Based on this, it is necessary to provide a kind of environmental protection and the low silver in waste of cost in the recovery silver during handling waste water
Recovery system.
A kind of silver in waste recovery system, including resin cation filter, regenerating unit, electrodialysis plant and reaction
Groove；
The resin cation filter, the electrodialysis plant and the reactive tank sequential communication successively；The sun
Ion exchange resin filter, which has, is used for the outlet for exchanging liquid discharge for after exchange is handled；The regenerating unit is communicated in
The resin cation filter, the regenerating unit can add regenerated liquid with to handing over into the resin cation filter
Change the resin cation filter after processing and carry out regeneration displacement formation regeneration displacement liquid；The electrodialysis plant is used for institute
State regeneration displacement liquid and carry out concentration, the reactive tank has the charge door for being used for adding reducing agent, and the reactive tank is used for
Reduction reaction is carried out for the reducing agent and the regeneration displacement liquid after electrodialysis plant concentration of addition.
In one of the embodiments, in addition to pretreatment unit；The pretreatment unit has water inlet, the pre- place
Reason device is connected to the resin cation filter.
In one of the embodiments, in addition to the first filter and the second filter, the first filter series connection
Between the pretreatment unit and the resin cation filter, second filter is connected on the cation
Between resin filter and the electrodialysis plant.
In one of the embodiments, second filter is filter core or filtering bag filter.
In one of the embodiments, the resin cation filter has reactive inlet, the regenerating unit connection
In the reactive inlet.
In one of the embodiments, the resin cation filter also has the regeneration for being used for regenerating displacement liquid discharge
Outlet, the reactivation outlet is communicated in the retracting device.
In one of the embodiments, in addition to the first booster pump, first booster pump is connected on the pretreatment dress
Put between first filter.
In one of the embodiments, in addition to the second booster pump, second booster pump is connected on the retracting device
Between second filter.
In one of the embodiments, the reactive tank also has the production mouth of a river, and the production mouth of a river is used to be communicated in the sun
Ion exchange resin filter.
Above-mentioned silver in waste recovery system, after silver-containing waste water is adsorbed after pretreatment through resin cation, tail water
Silver content, which reaches, discharges or enters recycling after the processing of process water recovery system after discharge standard, and silver ion is by Yang Shu
It is able to reclaim silver by regenerated liquid regeneration displacement, collection, concentrating and separating, reduction after fat adsorption saturation.Regenerated liquid regeneration is replaced,
The regeneration displacement liquid for forming higher concentration argentiferous is collected in retracting device, is then entered by the second filter, electrodialysis plant
Concentrated water after row concentrating and separating, electrodialysis plant concentrating and separating can obtain elemental silver through adding reducing agent reduction, also originate in
Raw water can directly carry out technique interior circulation by the production mouth of a river and be back in resin cation filter, can also be back to production and supply
In water treatment system front-end process.
Above-mentioned silver in waste recovery system, electrodialysis plant is by being adjusted to the relatively low available higher recovery of pH
Rate, up to more than 80-95%, far above embrane method retracting device, and it is unwise for the water quality even ion concentration fluctuation of water inlet
Sense, adaptability is very strong, and Ag-containing solution fouling in electrodialytic membranes group can be effectively prevented with reference to the periodically automatic technology of falling pole,
There is greater advantage relative to other techniques in terms of extension cleaning frequency and service life.Electrodialysis plant compact conformation is small
Ingeniously, it is cheap, service life length (general 3-6), device rate of recovery height (general 80-95%), safe and reliable to operation, operation
Easy maintenance, water stream channel is straight, therefore also not high to inflow requirement；After generation dirt is stifled in addition to it can carry out CIP cleanings online, hair
It can also be disassembled during raw dirty stifled more serious situation, this is also the incomparable advantage of embrane method device.
Above-mentioned silver in waste recovery system can continuous high-efficient processing waste water during recovery silver, while cation
Resin can regain the ability of exchange adsorption silver ion after regeneration, and regenerated liquid can also collect reuse, together
When the waste water and waste gas that also do not produce, zero-emission target can be achieved, economic benefit and environmental benefit are considerable.
Brief description of the drawings
Fig. 1 is an embodiment silver in waste recovery system schematic diagram.
Description of reference numerals
10th, silver in waste recovery system；100th, pretreatment unit；200th, the first booster pump；300th, the second booster pump；400、
First filter；500th, the second filter；600th, resin cation filter；700th, regenerating unit；800th, retracting device；900、
Electrodialysis plant；1000th, reactive tank.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
The understanding for opening content is more thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
The arbitrary and all combination of one or more related Listed Items.
Shown in Figure 1, the present embodiment relate to a kind of silver in waste recovery system 10.Including pretreatment unit 100,
One booster pump 200, the second booster pump 300, the first filter 400, the second filter 500, resin cation filter 600, again
Generating apparatus 700, retracting device 800, electrodialysis plant 900 and reactive tank 1000.
It is shown in Figure 1, the pretreatment unit 100, the first booster pump 200, first filter 400, the sun
Ion exchange resin filter 600, the retracting device 800, the second filter 500, electrodialysis dress described in the second booster pump 300
Put 900 and the sequential communication successively of the reactive tank 1000；The pretreatment unit 100 has water inlet.Second filtering
Device 500 is filter core or filtering bag filter.The retracting device 800 is return water tank.
Shown in Figure 1, the resin cation filter 600, which has, is used for the exchange liquid row for after exchange is handled
The outlet gone out.The resin cation filter 600 has reactive inlet, and the regenerating unit 700 is communicated in the regeneration
Entrance.The resin cation filter 600 also has the reactivation outlet for being used for regenerating displacement liquid discharge, and the reactivation outlet connects
Pass through the retracting device 800.
Shown in Figure 1, the regenerating unit 700 is communicated in the resin cation filter 600, the regenerating unit
700 can add regenerated liquid into the resin cation filter 600 to carry out again the resin cation filter 600
Raw displacement forms regeneration displacement liquid.
Shown in Figure 1, the electrodialysis plant 900 is used to carry out concentration to the regeneration displacement liquid.
Shown in Figure 1, the reactive tank 1000 has the charge door for being used for adding reducing agent, and the reactive tank 1000 is used
In the reducing agent for addition reduction reaction is carried out with the regeneration displacement liquid after the concentration of electrodialysis plant 900.It is described anti-
Answer groove 1000 that also there is the production mouth of a river, the production mouth of a river can be communicated in the resin cation filter 600.
The silver in waste recovery system 10 that the present embodiment is related to relate in a kind of waste water when being reclaimed for silver in waste
Silver recovery method.A kind of silver in waste recovery method, comprises the following steps：
Shown in Figure 1, silver-containing waste water is entered in pretreatment unit 100 by water inlet, 100 pairs of the pretreatment unit
Silver-containing waste water carries out pretreatment and forms pretreatment fluid；
The pretreatment fluid is entered in resin cation filter 600 after the filtering of the first filter 400, the sun
Ion exchange resin filter 600 is used for the silver-containing waste water after filtration treatment and carries out cation resin exchange processing, exchange processing
Exchange liquid afterwards is discharged by outlet；
Regenerated liquid is added into the resin cation filter 600 by regenerating unit 700, regenerated liquid and the sun from
Subtree grease filter 600 carries out regeneration displacement and forms regeneration displacement liquid；
The regeneration displacement liquid enters retracting device 800 and enters electrodialysis plant after the filtering of the second filter 500
In 900, the regeneration displacement liquid is entered in reactive tank 1000 after the concentration of electrodialysis plant 900；
Reducing agent is added into the reactive tank 1000 by the charge door of the reactive tank 1000, the reducing agent of addition with
The regeneration displacement liquid after concentration carries out reduction reaction and forms silver.
Above-mentioned silver in waste recovery system 10, after silver-containing waste water is adsorbed after pretreatment through resin cation, tail
Mercury content, which reaches, discharges or enters recycling after the processing of process water recovery system after discharge standard, and silver ion is positive
It is able to reclaim silver by regenerated liquid regeneration displacement, collection, concentrating and separating, reduction after resin adsorption saturation.Under regenerated liquid regeneration displacement
Come, the regeneration displacement liquid for forming higher concentration argentiferous is collected in retracting device 800, then by the second filter 500, electric osmose
Analysis apparatus 900 carries out the concentrated water after concentrating and separating, the concentrating and separating of electrodialysis plant 900 and can obtain list through adding reducing agent reduction
Matter silver, the water that reduction is produced can directly carry out technique interior circulation by the production mouth of a river and be back in resin cation filter 600,
Also it can be back in production water supply processing system front-end process.
Above-mentioned silver in waste recovery system 10, electrodialysis plant 900 is available higher by being adjusted to relatively low pH
The rate of recovery, up to more than 80-95%, far above embrane method retracting device 800, and for the water quality even ion concentration ripple of water inlet
Dynamic insensitive, adaptability is very strong, can effectively prevent Ag-containing solution in electrodialytic membranes group with reference to the periodically automatic technology of falling pole
Interior fouling, has greater advantage in terms of extension cleaning frequency and service life relative to other techniques.The knot of electrodialysis plant 900
Structure is compact compact, cheap, service life length (general 3-6), device rate of recovery height (general 80-95%), operation safety
Reliably, simple and convenient operation and maintenance, water stream channel is straight, therefore also not high to inflow requirement；Except CIP can be carried out online after generation dirt is stifled
Cleaning is outer, occurs also be disassembled during dirty stifled more serious situation, this is also the incomparable advantage of embrane method device.
Above-mentioned silver in waste recovery system 10 can continuous high-efficient processing waste water during recovery silver, while sun from
Subtree fat can regain the ability of exchange adsorption silver ion after regeneration, and regenerated liquid can also collect reuse,
The waste water and waste gas also not produced simultaneously, can be achieved zero-emission target, economic benefit and environmental benefit are considerable.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of silver in waste recovery system, it is characterised in that including resin cation filter, regenerating unit, electrodialysis dress
Put and reactive tank；
The resin cation filter, the electrodialysis plant and the reactive tank sequential communication successively；The cation
Resin filter, which has, is used for the outlet for exchanging liquid discharge for after exchange is handled；The regenerating unit is communicated in described
Resin cation filter, the regenerating unit can add regenerated liquid with to exchange into the resin cation filter
The resin cation filter carries out regeneration displacement and forms regeneration displacement liquid after reason；The electrodialysis plant be used for it is described again
Raw displacement liquid carries out concentration, and the reactive tank has the charge door for being used for adding reducing agent, and the reactive tank is used for for adding
Plus reducing agent with after electrodialysis plant concentration regeneration displacement liquid carry out reduction reaction.
2. silver in waste recovery system according to claim 1, it is characterised in that also including pretreatment unit；It is described pre-
Processing unit has water inlet, and the pretreatment unit is connected to the resin cation filter.
3. silver in waste recovery system according to claim 2, it is characterised in that also including the first filter and second
Filter, first filter is connected between the pretreatment unit and the resin cation filter, described
Second filter is connected between the resin cation filter and the electrodialysis plant.
4. silver in waste recovery system according to claim 3, it is characterised in that second filter is filter core or filter
Bag type filter.
5. the silver in waste recovery system according to claim 1-4 any one, it is characterised in that the resin cation
Filter has reactive inlet, and the regenerating unit is communicated in the reactive inlet.
6. silver in waste recovery system according to claim 5, it is characterised in that the resin cation filter also has
There is the reactivation outlet for regenerating displacement liquid discharge, the reactivation outlet is communicated in retracting device.
7. the silver in waste recovery system according to claim 3 or 4, it is characterised in that described also including the first booster pump
First booster pump is connected between the pretreatment unit and first filter.
8. silver in waste recovery system according to claim 6, it is characterised in that also including the second booster pump, described
Two booster pumps are connected between the retracting device and second filter.
9. the silver in waste recovery system according to claim 1-4 any one, it is characterised in that the reactive tank also has
There is the production mouth of a river, the production mouth of a river is used to connect the resin cation filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248359.1U CN206457352U (en) | 2016-11-15 | 2016-11-15 | Silver in waste recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248359.1U CN206457352U (en) | 2016-11-15 | 2016-11-15 | Silver in waste recovery system |
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| Publication Number | Publication Date |
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| CN206457352U true CN206457352U (en) | 2017-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069546A (en) * | 2016-11-15 | 2018-05-25 | 广州达意隆包装机械股份有限公司 | Silver in waste recovery system and silver in waste recovery method |
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2016
- 2016-11-15 CN CN201621248359.1U patent/CN206457352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069546A (en) * | 2016-11-15 | 2018-05-25 | 广州达意隆包装机械股份有限公司 | Silver in waste recovery system and silver in waste recovery method |
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