CN108658301A - A kind of industrial wastewater removes thallium method except the precipitating reagent and industrial wastewater depth of thallium - Google Patents
A kind of industrial wastewater removes thallium method except the precipitating reagent and industrial wastewater depth of thallium Download PDFInfo
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- CN108658301A CN108658301A CN201810606196.7A CN201810606196A CN108658301A CN 108658301 A CN108658301 A CN 108658301A CN 201810606196 A CN201810606196 A CN 201810606196A CN 108658301 A CN108658301 A CN 108658301A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/20—Disintegrating by grating
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a kind of industrial wastewater except the precipitating reagent and industrial wastewater depth of thallium remove thallium method, belong to abolishment field of purification.A kind of industrial wastewater of the present invention includes potassium sulfate, ferric sulfate and pH adjusting agent except the precipitating reagent of thallium；The industrial wastewater depth based on ion precipitation of the present invention removes thallium method, and potassium sulfate and ferric sulfate are added into the solution reactor of industrial wastewater, is heated to industrial wastewater, and pH adjusting agent is added into mixed liquor during heating；Industrial wastewater is stirred simultaneously, so that thallium ion is entered precipitation, then be separated by solid-liquid separation.The present invention can make thallium ion enter precipitation, then be separated by solid-liquid separation, and removal rate can be higher than 90%；In addition it is higher not only to remove thallium rate, but also there is very strong selectivity to thallium ion, can achieve the purpose that depth removes thallium to the industrial wastewater of complicated component.
Description
Technical field
The present invention relates to purification techniques field is abolished, the precipitating reagent of thallium is removed more specifically to a kind of industrial wastewater
And industrial wastewater depth removes thallium method.
Background technology
Thallium is a kind of eare scattered metals element of severe toxicity, and toxicity is main far above heavy metals such as Hg, As, Pb, Cd, Cu
The conduction of nerve impulse is influenced by with the competition of K+ in human body.
In nature, thallium is often with trace element form association in the oxide ores such as feldspar, mica, autunezite and yellow iron
In the sulphide ores such as mine, galena, brightness chalcopyrite.In the exploitation, ore dressing and smelting process of these ores, generate largely useless containing thallium
Water.Due to stronger migration, the thallium in waste water easily enters in environment water, then strong to human body by drinking-water and food chain
Kang Zaocheng is seriously endangered.In recent years, utilization is continually developed with the abundant mineral resources containing thallium in China, water body thallium pollution has been presented
The trend of aggravation causes the mankind and Environmental Health and seriously threatens.Therefore, the processing and purification of waste water containing thallium have been carved and have not been allowed
It is slow.Through retrieval, there are many method that thallium is removed from industrial wastewater developed at present, such as chemical precipitation method, biosorption process, gold
Belong to oxide adsorbent method etc., wherein being relatively to be oxidized to Tl (III) and generate sink from readily soluble Tl (I) by thallium using universal method
Form sediment and removes (CN201510802733.1- using pre-oxidation with coagulating sedimentation combine handle containing thallium, ammonia nitrogen waste water method,
A kind of deep treatment methods of waste water containing thallium of CN201510106618.0-, a kind of waste water containing thallium depth of CN201510076851.9-
Purification process technique).Oxidant has dual oxide water (thallium during CN201510468124.7- is a kind of while efficient removal smelting wastewater
With the method for Determination of Trace Thallium in a kind of removal sewage of the new method of arsenic, CN201510207306.9-), ferrate
(minimizing technology of Determination of Trace Thallium in a kind of water of CN201410186418.6-), (CN201310609199.3- one kind is same for potassium permanganate
When removal raw water in cadmium and thallium method) etc..Also have directly using hydrated manganese oxide (CN201510106618.0- one kind contain thallium
The deep treatment method of waste water) or nano manganese oxide (a kind of polymer-based nano manganese oxide depth of CN201110057640.2- is net
Change the method for Determination of Trace Thallium in water) it aoxidizes and adsorbs the thallium in waste water.The above method can be obtained when handling common waste water containing thallium
Preferable removal effect, but technique is relatively complicated, and be mostly to carry out operating except thallium under alkaline condition, industrial wastewater is mostly alkali
Property, adjusting pH value, to obtain expense cost higher, and waste water containing thallium ingredient becomes increasingly complex in recent years, and foreign ion is more and concentration is far high
In thallium, by the removal effect of severe jamming thallium.Be badly in need of a kind of waste water and energy treatment of acidic wastewater for complicated component of exploitation at
This lower depth removes thallium method.
Invention content
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art, the existing problem limited except thallium method treatment effect provides
A kind of industrial wastewater removes thallium method except the precipitating reagent and industrial wastewater depth of thallium, by be added into industrial wastewater potassium sulfate and
Ferric sulfate so that thallium ion can be removed efficiently, and can reduce the cost except thallium, and then can be reduced environmental pollution.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of industrial wastewater of the present invention removes the precipitating reagent of thallium, including potassium sulfate, ferric sulfate and pH adjusting agent.
Preferably, pH adjusting agent is KOH or sulfuric acid；Wherein KOH is solution, and a concentration of 30-400g/ of KOH solution
L, sulfuric acid are dilution heat of sulfuric acid.
The industrial wastewater depth based on ion precipitation of the present invention removes thallium method, to the solution reactor of industrial wastewater
(200) potassium sulfate and ferric sulfate are added in, industrial wastewater is heated, and pH is added into mixed liquor during heating
Conditioning agent；Industrial wastewater is stirred simultaneously, so that thallium ion is entered precipitation, then be separated by solid-liquid separation.
Preferably, the addition of potassium sulfate is 0.0005~0.20mol in every liter of industrial wastewater；Every liter of industrial wastewater sulfuric acid
The addition of iron is 0.0075~0.6mol.
Preferably, pH adjusting agent is KOH or sulfuric acid.
Preferably, lasting that sediment is ground or is crushed during pH adjusting agent is added.
Preferably, the KOH is KOH solution, and a concentration of 30-400g/L of KOH solution.
Preferably, the pH value of industrial wastewater is detected by pH detectors, and lasting to mixed liquor during heating
Middle addition pH adjusting agent, the pH for persistently regulating and controlling industrial wastewater are maintained between 1.0~3.5.
Preferably, using water-bath, either oil bath or heating furnace heat industrial wastewater, and regulate and control industrial wastewater
Temperature is 55 DEG C~105 DEG C.
Preferably, potassium sulfate and ferric sulfate generate KFe after industrial wastewater is added3(SO4)2(OH)6, KFe3(SO4)2(OH)6Make
Thallium ion is promoted to enter precipitation for precipitating reagent.
3. advantageous effect
It is had the advantages that compared with existing known technology using technical solution provided by the invention：
(1) a kind of industrial wastewater of the invention removes the precipitating reagent of thallium, including potassium sulfate, ferric sulfate and pH adjusting agent, pH
Conditioning agent is KOH or sulfuric acid, thallium ion can be made to enter precipitation, then be separated by solid-liquid separation, to selective by industrial wastewater
In thallium metal ion removal, removal rate can be higher than 90%；
(2) the industrial wastewater depth based on ion precipitation of the invention removes thallium method, adds into the reactor of industrial wastewater
Enter potassium sulfate and ferric sulfate, industrial wastewater is heated, the pH for regulating and controlling industrial wastewater is maintained between 1.0~3.5；It is right simultaneously
Industrial wastewater is stirred, and so that thallium ion is entered precipitation, then be separated by solid-liquid separation, to which selectivity is golden by the thallium in industrial wastewater
Belong to ion remaval, removal rate can be higher than 90%；The processing capacity of waste water is in particular improved, and for 0.2 μ g/L or more
Industrial wastewater can have good removal effect；
(3) the industrial wastewater depth based on ion precipitation of the invention removes thallium method, is adjusted using sulfuric acid or KOH as pH
PH adjusting agent is added in agent persistently disconnectedly during reaction, regulation and control pH value is maintained between 1.0~3.5, by accurately, constantly
PH in reaction process is regulated and controled, so that the thallium ion of industrial wastewater can be quickly anti-with the precipitating reagent in solution
Precipitation should be generated, to improve the removal efficiency of thallium ion；
(4) the industrial wastewater depth based on ion precipitation of the invention removes thallium method, either oil bath or is added using water-bath
Hot stove heats industrial wastewater, and the temperature for regulating and controlling industrial wastewater is 55 DEG C~105 DEG C, and the effect of heating water bath improves
Reaction effect, and be separated by solid-liquid separation, it is easier to remove, is conducive to commercial introduction；
(5) the industrial wastewater depth based on ion precipitation of the invention removes thallium method, and difficulty can be generated when pH adjusting agent is added
The bottom interior surface of molten object, this method reactor is provided with convexity layer or frosted layer, and the bottom of milling bar is provided with convexity layer
Or frosted layer, the sediment generated for the first time in reactor is ground with reactor collective effect by milling bar, from
And the sediment that the solution made generates for the first time is fully ground, and not only can adequately be stirred to reaction solution, but also improve
The degree of reaction efficiency and reaction, so as to effectively remove the thallium in industrial wastewater；
(6) the industrial wastewater depth based on ion precipitation of the invention removes thallium method, and flow is short, and step is few, except thallium rate is high,
Economic cost is low, is conducive to environmental protection, has higher commercial introduction value.
Description of the drawings
Fig. 1 is the structural schematic diagram that a kind of industrial wastewater depth of the present invention removes the reaction unit of thallium；
Fig. 2 is the structural schematic diagram of the reaction unit of the embodiment of the present invention 2；
Fig. 3 is that the industrial wastewater depth based on ion precipitation of the present invention removes the flow chart of thallium method.
Label declaration in schematic diagram：
100, mechanism is ground；110, abrasive sheet；111, arc panel；112, board bottom grinding layer；120, fluid passage；121, enter
Liquid mouth；122, liquid outlet；
200, solution reactor；210, reactor bottom；220, bottom transition section；211, bottom grinding layer；
300, agent container is adjusted；310, catheter；320, regulating valve；330, heating layer.
400, constent temperature heater；
500, pH detectors；510, pH pops one's head in.
Specific implementation mode
Hereafter to the detailed description of exemplary embodiment of the present invention with reference to attached drawing, which forms one of description
Point, it has been shown as example enforceable exemplary embodiment of the invention in the figure.Although these exemplary embodiment quilts
Fully describe in detail so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiment and
Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to the embodiment of the present invention
More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair
The description of the features of the present invention and feature to propose to execute the best mode of the present invention, and is sufficient to make those skilled in the art
It can implement the present invention.Therefore, the scope of the invention is only defined by the appended claims.Hereafter detailed description of the present invention
It is more fully understood in combination with attached drawing with example embodiment.
Embodiment 1
A kind of industrial wastewater of the present invention removes the precipitating reagent of thallium, including potassium sulfate, ferric sulfate and pH adjusting agent.It is preferred that
Ground, pH adjusting agent are KOH or sulfuric acid；Wherein KOH is solution, and a concentration of 30-400g/L of KOH solution, sulfuric acid are dilute sulphur
Acid solution.It is worth noting that, when industrial wastewater is alkaline waste water, the pH of industrial wastewater is adjusted using sulfuric acid.
The industrial wastewater depth based on ion precipitation of the present invention removes thallium method, the specific steps are：
Step 1：Industrial wastewater is filtered by filter device, to by industrial wastewater sediment and suspension
Object is filtered, then potassium sulfate and ferric sulfate, the wherein addition of potassium sulfate will be added in the solution reactor 200 to industrial wastewater
Amount is 0.20mol/L, and the addition of ferric sulfate is 0.6mol/L, and potassium sulfate and ferric sulfate reaction generate KFe3(SO4)2(OH)6,
KFe3(SO4)2(OH)6Thallium ion is promoted to enter precipitation as precipitating reagent.Wherein the original concentration of thallium ion is in industrial wastewater
500.00μg/L。
Step 2：Solution reactor 200 is put into constent temperature heater 400, by constent temperature heater 400 to solution reaction
Device 200 is heated, and the heating temperature of constent temperature heater 400 is 55 DEG C, and grinding mechanism 100 is extend into solution reactor
Solution is stirred in 200, is continued, slowly to solution reaction by adjusting agent container 300 during heating, stirring
PH adjusting agent is added in device 200, it is made to remain at 1.0 or so, wherein the present embodiment uses KOH solution as pH adjusting agent
Regulate and control the pH value of industrial wastewater, it is lasting that sediment is ground or is crushed during pH adjusting agent is added；This implementation
Example is ground using the sediment that generation will be added in grinding mechanism 100, is crushed, wherein the bottom of grinding mechanism 100 is provided with
The lower surface of abrasive sheet 110, the abrasive sheet 110 is provided with board bottom grinding layer 112, and abrasive sheet 110 is used for the sediment to production
It is ground；The inner surface of the reactor bottom 210 of solution reactor 200 is provided with bottom grinding layer 211, the bottom grinding layer
211 match with board bottom grinding layer 112, to improve the effect of grinding；Promote the sediment generated to be rapidly performed by grind
Mill.The reaction was continued 2h, during reaction lasting addition adjust agent container 300 and pH tune be added into solution reactor 200
Agent is saved, after reaction and is separated by solid-liquid separation so that thallium ion is excluded in solid form.
Using the content of thallium ion in ICP-MS detection solution after experiment, and it is recorded in table 1.
Comparative example 1
This comparative example basic step with embodiment 1, the difference is that：Using with embodiment same molar ratio
K2CO3 solution reacts 2h as pH adjusting agent, using the content of thallium ion in ICP-MS detection solution after experiment, and remembers
Record is in table 1.
Comparative example 2
This comparative example basic step with embodiment 1, the difference is that：During reaction, not to the sediment of generation
It is ground, only carries out general stirring, react 2h, contained using thallium ion in ICP-MS detection solution after experiment
Amount, and be recorded in table 1.
Comparative example 3
This comparative example basic step with embodiment 1, the difference is that：Using the K with embodiment same molar ratio2CO3
Solution for 24 hours, using the content of thallium ion in ICP-MS detection solution after experiment, and is recorded in as pH adjusting agent, reaction
In table 1.
Comparative example 4
This comparative example basic step with embodiment 1, the difference is that：KOH solution is added at one time to solution reaction
In device 200, be not constantly be added KOH solution into solution reactor 200, react 2h, ICP-MS used after experiment
The content of thallium ion in solution is detected, and is recorded in table 1.
By the comparison of embodiment 1 and comparative example 1-4 it can be found that the present invention using the present invention based on ion precipitation
Industrial wastewater depth remove thallium method, selectivity by industrial wastewater thallium metal ion remove, removal rate can be higher than 90%；
In particular improve the processing capacity of waste water；Its reason may is that：
(1) comparison 1 is compared, the removal efficiency of the thallium ion in embodiment 1 significantly improves, and reason may is that：KOH is molten
Liquid significantly promotes the quick progress of reaction as conditioning agent, improves the transfer efficiency of precipitation production, and promotes sulfuric acid
Potassium and ferric sulfate reaction generate KFe3(SO4)2(OH)6, enter precipitation to promote thallium ion, and improve going for thallium ion
Except effect；
(2) comparison 2 is compared, the removal efficiency of the thallium ion in embodiment 1 significantly improves, and reason may is that：Adding
It is lasting that sediment is ground or is crushed during entering pH adjusting agent, by being ground to sediment, can promote
KFe is generated into potassium sulfate and ferric sulfate reaction3(SO4)2(OH)6, KFe3(SO4)2(OH)6Thallium ion is promoted to enter as precipitating reagent
Precipitation, and then the production of precipitating reagent is promoted, precipitating reagent accelerates thallium ion and enters precipitation；
(3) comparison 3 is compared, the removal efficiency of the thallium ion in embodiment 1 is significantly higher, and reason may is that：It is adopting
Use K2CO3Solution is as pH adjusting agent, even if reaction is for 24 hours, the removal efficiency of thallium ion is still relatively low, and reason is K2CO3It is molten
For liquid as pH adjusting agent, removal efficiency is poor, and reason may be K2CO3Solution is poor to the generation facilitation effect of precipitating reagent；
(4) comparison 4 is compared, the removal efficiency of the thallium ion in embodiment 1 significantly improves, and reason may is that：PH value
There is large effect for the reaction, and H is constantly generated during potassium sulfate and ferric sulfate react+, wherein reacting
Equation is such as shown in (1) and (2)：
And then the pH value in reaction solution is influenced, the present invention is during heating, stirring by adjusting agent container (300)
Persistently, pH adjusting agent slowly is added into solution reactor 200, so that it is remained at 1.0 or so, promotes precipitating reagent
Production, precipitating reagent accelerate thallium ion and enter precipitation.
Therefore, the industrial wastewater depth of the invention based on ion precipitation removes thallium method, into the reactor of industrial wastewater
Potassium sulfate and ferric sulfate is added, industrial wastewater is heated, the pH for regulating and controlling industrial wastewater is maintained between 1.0~3.5；Simultaneously
Industrial wastewater is stirred, so that thallium ion is entered precipitation, then be separated by solid-liquid separation, to selective by the thallium in industrial wastewater
Metal ion removes, and removal rate can be higher than 90%.And flow is short, step is few, and except thallium rate is high, economic cost is low.In addition, this hair
It is bright that thallium ion can be made to enter precipitation, then be separated by solid-liquid separation, removal rate can be higher than 90%；In addition it is higher not only to remove thallium rate,
And there is very strong selectivity to thallium ion, it can achieve the purpose that depth removes thallium to the industrial wastewater of complicated component.
As shown in Figure 1, a kind of industrial wastewater depth of the present invention removes the reaction unit of thallium, including grinding mechanism 100, solution
Reactor 200 adjusts agent container 300, constent temperature heater 400 and pH detectors 500, wherein the bottom setting of grinding mechanism 100
Have abrasive sheet 110, the lower surface of the abrasive sheet 110 is provided with board bottom grinding layer 112, abrasive sheet 110 be used for reaction product into
Row grinding；Solution reactor 200 is for containing industrial wastewater, the inner surface setting of the reactor bottom 210 of solution reactor 200
There is bottom grinding layer 211, which matches with board bottom grinding layer 112, the external setting of solution reactor 200
There is constent temperature heater 400, which is used to carry out heated at constant temperature, wherein the present embodiment to solution reactor 200
Constent temperature heater 400 is heating water bath, and it is 55 DEG C to keep the temperature of heating water bath；It adjusts agent container 300 and passes through catheter 310
It is connected with solution reactor 200, adjusts agent container 300 and be used to pH adjusting agent being added to solution reactor 200, catheter 310
On be provided with regulating valve 320, which is used to adjust the flow of catheter 310.The pH probes 510 of the pH detectors 500
It stretches into inside solution reactor 200, pH detectors 500 are used to detect the pH value of solution in solution reactor 200, so as to root
The aperture of the regulating valve 320 of agent container 300 is adjusted according to the pH value feedback regulation constantly detected, and then is adjusted to solution reactor
200 are added the amount of pH adjusting agent, and the pH to regulate and control industrial wastewater is maintained between 1.0~3.5.
It is provided with bottom transition at the position that the reactor bottom 210 of the present embodiment is connected with 200 side wall of solution reactor
Section 220, the medial surface of the bottom transition section 220 is provided with bottom grinding layer 211；The end set of abrasive sheet 110 has arc panel
111, which matches with bottom transition section 220, and the bottom surface of arc panel 111 is provided with board bottom grinding layer
112；So that in the marginal position that 200 side wall of solution reactor is connect with bottom, grinding mechanism 100 still can be ground with bottom
Mill layer 211 is coordinated, and to which the sediment of generation to be ground, and then improves the effect of grinding, and then promote whole
The progress of a reaction.
Embodiment 2
The present embodiment content substantially with embodiment 1, the difference is that, the addition of potassium sulfate is 0.005mol/L, sulphur
The addition of sour iron is 0.015mol/L, and the pH value of industrial wastewater is regulated and controled using KOH solution as pH adjusting agent, it is made to protect always
It holds 2.0 or so, and fluid passage 120 is provided with by 100 middle part of grinding mechanism, KOH solution is added to solution reactor
In 200, the bottom liquid inlet 121 of wherein fluid passage 120 is set to the middle part of abrasive sheet 110 so that KOH solution is by abrasive sheet
110 middle part is added in industrial wastewater, during KOH solution is added, since liquid inlet 121 is set to abrasive sheet 110
Middle part, grinding mechanism 100 quickly directly the sediment of generation can be ground, be crushed, to improve grinding effect
Fruit, and then promote the progress of reaction；In addition the temperature of industrial wastewater is maintained at 85 DEG C and is stirred by the present embodiment using water-bath
9h, mixing speed 200r/min, is separated by solid-liquid separation later, to remove the thallium ion in waste water.It is used after experiment
ICP-MS detects the content of thallium ion in solution, and is recorded in table 1.
As shown in Fig. 2, it is provided with fluid passage 120 in the middle part of the milling bar of the grinding mechanism 100 of the present embodiment, the liquid
The top liquid inlet 121 in channel 120 is connected by catheter 310 with agent container 300 is adjusted, and the bottom of fluid passage 120 goes out liquid
Mouth 122 is set on abrasive sheet 110, in particular：The bottom liquid inlet 121 of fluid passage 120 is set to abrasive sheet 110
Middle part.
Moreover, the outside for adjusting agent container 300 is provided with heating layer 330, which is used for adjusting agent container
Adjusting agent solution in 300 is heated, so as to keep adjusting the temperature and solution of the adjusting agent solution in agent container 300
The temperature of industrial wastewater is identical in reactor 200, so as to improve the effect of reaction, avoids the addition of pH adjusting agent to reaction
The influence of process improves the effect that industrial wastewater removes thallium.Further it should be noted that the outer surface of catheter 310 is coated with
Thermal insulation material, during avoiding pH adjusting agent from being added, pH adjusting agent and the temperature difference of processed industrial wastewater are larger,
And influence in reaction process, to improve the reaction removal efficiency of thallium ion.
Embodiment 3
The present embodiment content substantially with embodiment 1, the difference is that, the addition of potassium sulfate is 0.0005mol/L, sulphur
The addition of sour iron is 0.0075mol/L, and the pH value of industrial wastewater is regulated and controled using sulfuric acid as pH adjusting agent, it is made to remain
3.5 or so, the temperature of industrial wastewater is maintained at 105 DEG C using oil bath and stirs 12h, mixing speed 500r/min.It is real
Using the content of thallium ion in ICP-MS detection solution after testing, and it is recorded in table 1.
Table 1 reacts thallium ion concentration and removal efficiency in front and back industrial wastewater
| Initial thallium concentration (μ g/L) | Whole liquid thallium concentration (μ g/L) | Except thallium rate (%) | |
| Embodiment 1 | 500.00μg/L | 49.00 | 90.2 |
| Comparative example 1 | 500.00μg/L | 175.60 | 64.9 |
| Comparative example 2 | 500.00μg/L | 102.50 | 79.5 |
| Comparative example 3 | 500.00μg/L | 188.50 | 62.3 |
| Comparative example 4 | 500.00μg/L | 108.80 | 78.2 |
| Embodiment 2 | 500.00μg/L | 47.50 | 90.5 |
| Embodiment 3 | 500.00μg/L | 46.50 | 90.7 |
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment should all belong to the present invention.
Claims (10)
1. a kind of industrial wastewater removes the precipitating reagent of thallium, it is characterised in that：Including potassium sulfate, ferric sulfate and pH adjusting agent.
2. a kind of industrial wastewater according to claim 1 removes the precipitating reagent of thallium, it is characterised in that：PH adjusting agent is KOH
Or sulfuric acid.
3. the industrial wastewater depth based on ion precipitation removes thallium method, it is characterised in that：To the solution reactor of industrial wastewater
(200) potassium sulfate and ferric sulfate are added in, industrial wastewater is heated, and pH is added into mixed liquor during heating
Conditioning agent；Industrial wastewater is stirred simultaneously, so that thallium ion is entered precipitation, then be separated by solid-liquid separation.
4. the industrial wastewater depth according to claim 3 based on ion precipitation removes thallium method, it is characterised in that：Every liter of work
The addition of potassium sulfate is 0.0005~0.20mol in industry waste water；The addition of every liter of industrial wastewater ferric sulfate be 0.0075~
0.6mol。
5. the industrial wastewater depth according to claim 3 based on ion precipitation removes thallium method, it is characterised in that：PH is adjusted
Agent is KOH or sulfuric acid.
6. the industrial wastewater depth according to claim 3 based on ion precipitation removes thallium method, it is characterised in that：It is being added
It is lasting that sediment is ground or is crushed during pH adjusting agent.
7. the method that a kind of industrial wastewater depth according to claim 5 removes thallium, it is characterised in that：The KOH is that KOH is molten
Liquid, and a concentration of 30-400g/L of KOH solution.
8. the industrial wastewater depth according to claim 5 based on ion precipitation removes thallium method, it is characterised in that：Pass through pH
Detector detects the pH value of industrial wastewater, and it is lasting during heating pH adjusting agent is added into mixed liquor, it is lasting to adjust
The pH of control industrial wastewater is maintained between 1.0~3.5.
9. removing thallium method according to industrial wastewater depth of the claim 3-8 any one of them based on ion precipitation, feature exists
In：Using water-bath, either oil bath or heating furnace heat industrial wastewater, and regulate and control industrial wastewater temperature be 55 DEG C~
105℃。
10. the industrial wastewater depth according to claim 9 based on ion precipitation removes thallium method, it is characterised in that：Sulfuric acid
Potassium and ferric sulfate generate KFe after industrial wastewater is added3(SO4)2(OH)6, KFe3(SO4)2(OH)6Promote thallium ion as precipitating reagent
Into precipitation.
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| CN201810606196.7A CN108658301B (en) | 2018-06-12 | 2018-06-12 | Precipitant for industrial wastewater thallium removal and industrial wastewater deep thallium removal method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693819A (en) * | 2014-01-02 | 2014-04-02 | 中南大学 | Thallium-containing heavy metal wastewater advanced treatment method |
| CN105060557A (en) * | 2015-07-31 | 2015-11-18 | 广州大学 | New method for simultaneously and efficiently removing thallium and arsenic from smelting wastewater |
| CN106082502A (en) * | 2016-08-16 | 2016-11-09 | 华南理工大学 | A kind of remove the method for thallium in waste water |
| CN106746024A (en) * | 2017-01-24 | 2017-05-31 | 湘潭大学 | A kind of processing method of Ferrous Metallurgy sintering flue gas desulfurization waste water containing thallium |
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2018
- 2018-06-12 CN CN201810606196.7A patent/CN108658301B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693819A (en) * | 2014-01-02 | 2014-04-02 | 中南大学 | Thallium-containing heavy metal wastewater advanced treatment method |
| CN105060557A (en) * | 2015-07-31 | 2015-11-18 | 广州大学 | New method for simultaneously and efficiently removing thallium and arsenic from smelting wastewater |
| CN106082502A (en) * | 2016-08-16 | 2016-11-09 | 华南理工大学 | A kind of remove the method for thallium in waste water |
| CN106746024A (en) * | 2017-01-24 | 2017-05-31 | 湘潭大学 | A kind of processing method of Ferrous Metallurgy sintering flue gas desulfurization waste water containing thallium |
Non-Patent Citations (1)
| Title |
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| J.E.DUTRIZAC ET AL.: ""The behaviour of thallium(III) during jarosite precipitation"", 《HYDROMETALLURGY》 * |
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