CN1067229A - Treatment method of thallium-containing waste water - Google Patents
Treatment method of thallium-containing waste water Download PDFInfo
- Publication number
- CN1067229A CN1067229A CN 92105763 CN92105763A CN1067229A CN 1067229 A CN1067229 A CN 1067229A CN 92105763 CN92105763 CN 92105763 CN 92105763 A CN92105763 A CN 92105763A CN 1067229 A CN1067229 A CN 1067229A
- Authority
- CN
- China
- Prior art keywords
- thallium
- add
- waste water
- coprecipitator
- wastewater treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052716 thallium Inorganic materials 0.000 title claims abstract description 54
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000002351 wastewater Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000000460 chlorine Substances 0.000 claims abstract description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 19
- 239000006228 supernatant Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Inorganic materials Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000012716 precipitator Substances 0.000 claims description 4
- 239000002585 base Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 150000001804 chlorine Chemical class 0.000 description 4
- 238000000975 co-precipitation Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 229910019440 Mg(OH) Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- SGMHGVVTMOGJMX-UHFFFAOYSA-N n-naphthalen-2-yl-2-sulfanylacetamide Chemical compound C1=CC=CC2=CC(NC(=O)CS)=CC=C21 SGMHGVVTMOGJMX-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003476 thallium compounds Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
The invention relates to a method for precipitation treatment of thallium-containing wastewater, which comprises adjusting the pH of the wastewater to 2-5 with acid, and then using oxidant (NaClO, H)2O2，Br2Water, chlorine) to oxidize the monovalent thallium in the wastewater into trivalent thallium, and then adding a coprecipitator and hydroxyl to precipitate the thallium, thereby removing the thallium in the wastewater. The method has the advantages of simple flow, easy operation, low cost, no introduction of other harmful impurities and good thallium removal effect.
Description
The present invention relates to a kind of wastewater treatment method, more particularly, is a kind of treatment process of waste water containing thallium.
Thallium and thallium compound are highly toxic substances, are producing NaI(Tl) can produce thallic waste water in the crystal, its thallium-containing quantity is generally 2～15mg/l, in addition have reach 100mg/ml.The strictest standard (as mercury) according to the toxic heavy metal discharge of wastewater of China regulation should be≤0.05mg/l.Therefore, the thallium-containing quantity of waste water containing thallium has substantially exceeded this standard.In order to prevent and avoid the pollution of waste water containing thallium, must reduce the thallium content in the waste water containing thallium, to reach emission standard to environment.
At present, the method for separation thallium has ion exchange method, extraction process, spontaneous evaporation method and the precipitator method.Ion exchange method needs wash-out, and the concentrated solution behind the wash-out is also needed further to handle.Extraction process has extraction and reextraction process, and the concentrated solution that back extraction is taken out also needs further to handle, and its process is complicated.The spontaneous evaporation method is taken up an area of many, and waste water containing thallium exposes to the open air again outside, to the neither safety of people and animals.The precipitator method are all simple than aforesaid method, two kinds of its branch organic deposition and inorganic precipitations.The used precipitation agent price of organic deposition method is expensive, should not do the processing of industrial waste water containing thallium, and these reagent have thiocarbamide, thionalide, thiooxine, tropeolin-D, quadrol, Tetraphenyl sodium borate ... Deng.The inorganic precipitation method has sulfonium ion precipitation thallium, and (" Removal of metals from wastewater.Neutralization and Precipitation ", Cushnic.G.C.1984), it is better that this method is removed the thallium effect, because Tl S solubility product is 5 * 10
-21, the precipitation agent price is also cheap, but this method adds sulphur, and sulphur content＞1mg/l in processed waste water still can not discharge at last, otherwise needs further sulphur removal.
The object of the invention provides a kind of objectionable impurities of not introducing, and removes the treatment process of the effective waste water containing thallium of thallium.
The present invention implements like this.Adopt Tl(OH)
3The precipitator method.Tl(OH)
3Be insoluble compound, its solubility product is 6.3 * 10
-46Thallium in nature and the waste water is Tl
+Be the precipitation thallium, need thallium is oxidized to Tl
3+, Tl
+→ Tl
3+Standard oxidationreduction potential E
0=1.26, as long as the strong E of oxidisability of oxygenant
0＞1.26, just can be with Tl
+→ Tl
3+But handle as industrial useless thallium liquid, the oxygenant of adding must be inexpensive, be easy to get, be suitable for, available oxygenant has NaClO, Cl
2, hydrogen peroxide, bromine water ... Deng.Before adding oxygenant, to make earlier to contain the acidifying of thallium liquid and reoxidize, be shown below:
Used acid is mineral acid, and H is arranged
2SO
4, HNO
3, HCl.Treat Tl
3+After the generation, add alkali, promptly generate Tl(OH)
3Precipitation.For making Tl(OH)
3Precipitate fully, the adding coprecipitator of still needing, the coprecipitator that is added also must cheaply be easy to get, and at first is Ca
2+, secondly be Al
3+, as CaCl
2, Ca(OH)
2, AlCl
36H
2O, NH
3Al(SO
4)
212H
2O, KAl(SO
4)
212H
2O, Al
2(SO
4)
318H
2O etc.The precipitation agent that adds can be NaOH, NH
3OH.The add-on of oxygenant in molar weight, should be Tl
+More than 15 times for well, when thallium-containing quantity in the waste water≤40mg/l, the NaClO liquid measure of the nearly saturated chlorine of adding is 0.5～2ml/l, the acid amount of adding gets final product with pH=2～5.The co-precipitation dosage that adds is 0.5～1g/l.When thallium content is high again in the waste water, then add the corresponding increase of amount of reagent.To fully stir when adding acid, oxygenant, coprecipitator, oxidation is fully finished.The alkali number that adds adds the kind of coprecipitator successively and decides, when coprecipitator is Ca
2+The time, then the add-on of alkali is as the criterion with pH value of solution 〉=11, and coprecipitator is Al
3+The time, be as the criterion with pH=7～8.
Method of the present invention is carried out as follows:
(1) in waste water containing thallium, add mineral acid, transfer pH to 2-5,
(2) add oxygenant, chlorine bleach liquor (NaClO), hydrogen peroxide (H are arranged
2O
2), bromine water or chlorine.The amount that adds NaClO liquid or hydrogen peroxide is 0.5～1ml/l, and the bromine water amount is deep yellow with waste water and is as the criterion, and feeds amount of chlorine and is as the criterion clearly with solution becomes.
(3) add coprecipitator Ca
2+Or Al
3+, add-on is 0.5～1g/l.
(4) add alkali, making pH=7～8(work as coprecipitator is Al
3+The time), or 〉=11(when coprecipitator be Ca
2+The time).
(5) precipitated liquid was placed 1～6 hour or was spent the night, and removed precipitation, and supernatant liquor is the waste water except that thallium, can discharge.
Through the waste water containing thallium of above-mentioned processing, its thallium-containing quantity≤0.05mg/l reaches country fully and allows emission standard, and does not introduce the objectionable impurities of environmental pollution in waste water.
Embodiment 1.(1) is the waste water 250l of 9.68mg/l with thallium-containing quantity, pumps in the treatment trough, add H
2SO
4, make pH=3, stir,
(2) the NaClO liquid 250l of the nearly saturated chlorine of adding stirs,
(3) add CaCl
2150g stirred 30 minutes,
(4) add NaOH,, stirred 30 minutes to pH=12,
(5) placed liquid, discharging supernatant liquor, filtering Tl(OH)
3, Ca(OH)
2And Mg(OH)
2Co-precipitation pending.
Supernatant liquor by analysis, its thallium-containing quantity is 0.011mg/l.
Embodiment 2.
(1) is that the waste water 250l of 36mg/l pumps in the treatment trough with thallium-containing quantity, adds H
2SO
4Make pH=3, stir,
(2) the NaClO liquid 400ml of the nearly saturated chlorine of adding stirs,
(3) add CaCl
2150g stirred 30 minutes,
(4) add NaOH and make pH=12, stirred 1.5 hours, Tl(OH)
3Precipitation is complete,
(5) place the filtration of spending the night, discharging supernatant liquor, filtering Tl(OH)
3, Ca(OH)
2And Mg(OH)
2Co-precipitation pending.
Supernatant liquor by analysis, its thallium-containing quantity is 0.013mg/l.
Embodiment 3.
(1) is that the waste water 250l of 8mg/l pumps in the treatment trough with thallium-containing quantity, adds H
2SO
4Make pH=3, stir,
(2) the NaClO liquid 250ml of the nearly saturated chlorine of adding stirs,
(3) add AlCl
36H
2O 130 grams stirred 30 minutes,
(4) add NaOH and make pH=7.5, stirred 1.5 hours,
(5) precipitation solution is placed the filtration of spending the night, the discharging supernatant liquor, and the filtering co-precipitation is pending.
Supernatant liquor is analyzed, and thallium-containing quantity is 0.012mg/l.
Embodiment 4.
(1) is that the waste water 250l of 9.3mg/l pumps in the treatment trough with thallium-containing quantity, under agitation adds H
2SO
4Make pH=2.5,
(2) add nearly saturated NaClO liquid 250ml, stir,
(3) add NH
3AlSO
412H
2O 100g stirred 30 minutes,
(4) add NH
4OH makes pH=7.5,
(5) precipitated liquid was placed 7 hours, filter, and the discharging supernatant liquor, it is pending to remove filter residue.
Supernatant liquor by analysis, thallium-containing quantity is 0.011mg/l.
Embodiment 5.
(1) is the waste water 250l of 6.8mg/l with thallium-containing quantity, pumps in the treatment trough, under stirring state, add H
2SO
4, transfer pH=2,
(2) add 30% hydrogen peroxide 120ml, stir,
(3) add AlCl
36H
2O 120g stirred 30 minutes,
(4) add NaOH and transfer pH=7.2, stirred 1 hour,
(5) the precipitated liquid age overnight filters, the discharging supernatant liquor, and it is pending to remove filter residue.
Clear liquid analytically, thallium-containing quantity is 0.01mg/l.
Embodiment 6.
(1) is in the 10l waste water of 16mg/l at thallium-containing quantity, adds H
2SO
4, make pH=2.5, stir,
(2) add bromine water and make solution be deep yellow, stir,
(3) add KAlSO
412H
2O 6g, stirring dissolves,
(4) add NaOH solution and make pH=7.2,
(5) precipitated liquid was placed after 6 hours, filter, and the discharging supernatant liquor, it is pending to remove filter residue.
Clear liquid analytically, thallium-containing quantity is 0.005mg/l.
Embodiment 7.
(1) in being the waste water of 20.5mg/l, 20l thallium content adds H
2SO
4, make pH=5, stir,
(2) feeding chlorine is clear to solution becomes, stir,
(3) add CaCl
210g stirs,
(4) add NaOH, transfer pH=11.5, stir,
(5) precipitated liquid is placed the filtration of spending the night, the discharging supernatant liquor, and it is pending to remove filter residue.
Clear liquid analytically, thallium-containing quantity is 0.0005mg/l.
From above-mentioned numerous embodiment, the inventive method is simple and easy, and is easy and simple to handle, required reagent is cheap, convenient sources, and gained is ideal as a result, thallium-containing quantity all reaches state emission standard, and (13 μ g/l are for to various biological standards also to have reached the standard of American National environment provided waters thallium content; 48 μ g/l are for to the hydrobiont standard).
Claims (5)
1, a kind of treatment process of waste water containing thallium, this method are to remove thallium with the precipitator method, it is characterized in that carrying out as follows:
(1) in waste water containing thallium, add mineral acid, transfer pH to 2～5,
(2) adding makes Tl
+→ Tl
3+Redox potential E
0＞1.26 oxygenant,
(3) add Ca
2+Or Al
3+Coprecipitator,
(4) (coprecipitator is Al to add adjusting PH with base to 7～8
3+The time) or 〉=11 (precipitation agent is Ca
2+The time),
(5) precipitated liquid is placed 1～6 hour or the filtration of spending the night, and the discharging supernatant liquor is removed filter residue.
2, method of wastewater treatment as claimed in claim 1 is characterized in that the mineral acid that adds in the step (1) is H
2SO
4, HCl, HNO
3
3, method of wastewater treatment as claimed in claim 1 is characterized in that the oxygenant in the step (2) is NaClO, H
2O
2, bromine water, chlorine, NaClO liquid or H
2O
2Add-on is 15 times (molar weight meters) of thallium, and the bromine water add-on is deep yellow with exhausted water and is as the criterion, and the chlorine add-on is as the criterion clearly with the waste water change.
4, method of wastewater treatment as claimed in claim 1 is characterized in that adding coprecipitator in the step (3) is CaCl
2, Ca(OH)
2, AlCl
3, NH
3AlSO
412H
2O, KAlSO
412H
2O, Al
2(SO
4)
318H
2O.
5, method of wastewater treatment as claimed in claim 1 is characterized in that the alkali that adds in the step (4) is NaOH, NH
3(OH).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105763 CN1026480C (en) | 1992-07-15 | 1992-07-15 | Treatment method of thallium-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105763 CN1026480C (en) | 1992-07-15 | 1992-07-15 | Treatment method of thallium-containing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1067229A true CN1067229A (en) | 1992-12-23 |
| CN1026480C CN1026480C (en) | 1994-11-09 |
Family
ID=4941570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105763 Expired - Fee Related CN1026480C (en) | 1992-07-15 | 1992-07-15 | Treatment method of thallium-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026480C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301219C (en) * | 2005-10-08 | 2007-02-21 | 广州大学 | Treatment of thallium and heavy metal containing mixed waste water drained by sulfuric acid plant |
| CN102107969A (en) * | 2011-01-21 | 2011-06-29 | 广州市自来水公司 | Method for emergently treating thallium-polluted raw water |
| CN102311190A (en) * | 2011-08-19 | 2012-01-11 | 深圳市水务(集团)有限公司 | Method for removing thallium from drinking water by enhanced conventional water treatment process |
| CN102320700A (en) * | 2011-08-12 | 2012-01-18 | 东莞市东江水务有限公司 | Method for removing thallium pollution in source water of drinking water |
| CN104773863A (en) * | 2015-02-13 | 2015-07-15 | 湖南永清环保研究院有限责任公司 | Deep purification process for thallium-containing waste water |
| CN104773878A (en) * | 2015-04-28 | 2015-07-15 | 韶关朗润环保科技有限公司 | Method for removing trace of thallium in sewage |
| 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 |
| CN107904400A (en) * | 2017-12-13 | 2018-04-13 | 清远先导材料有限公司 | The separation and recovery method of thallium in a kind of sulfuric acid nickel and cobalt solution |
| CN108380395A (en) * | 2018-02-28 | 2018-08-10 | 湘潭大学 | A kind of lead thallium separation method of the concentrate of lead sulfide ore containing thallium |
| CN109626414A (en) * | 2019-01-31 | 2019-04-16 | 广州大学 | A method of thallium and rhenium being recycled in waste acid from smelting |
| CN110194538A (en) * | 2018-02-24 | 2019-09-03 | 湖南金蓝田环保工程有限公司 | A method of the coordination grafting advanced treating of heavy metal wastewater thereby containing thallium |
| CN110252270A (en) * | 2019-07-05 | 2019-09-20 | 广东华准检测技术有限公司 | A kind of desorption cycle of the titanium peroxide containing thallium utilizes method and device |
| CN111719046A (en) * | 2020-04-02 | 2020-09-29 | 桂林理工大学 | Method for separating thallium from water body and recovering extractant |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317205C (en) * | 2005-05-30 | 2007-05-23 | 广州大学 | Treating method for waste water containing thallium |
| CN102768191B (en) * | 2012-07-31 | 2014-06-18 | 浙江中一检测研究院股份有限公司 | Method for easily detecting trace thallium in water |
| CN105293775A (en) * | 2015-11-19 | 2016-02-03 | 湖南力泓新材料科技股份有限公司 | Method adopting combined technology of pre-oxidation and coagulating sedimentation to process wastewater containing thallium and ammonia-nitrogen |
-
1992
- 1992-07-15 CN CN 92105763 patent/CN1026480C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301219C (en) * | 2005-10-08 | 2007-02-21 | 广州大学 | Treatment of thallium and heavy metal containing mixed waste water drained by sulfuric acid plant |
| CN102107969A (en) * | 2011-01-21 | 2011-06-29 | 广州市自来水公司 | Method for emergently treating thallium-polluted raw water |
| CN102320700A (en) * | 2011-08-12 | 2012-01-18 | 东莞市东江水务有限公司 | Method for removing thallium pollution in source water of drinking water |
| CN102311190A (en) * | 2011-08-19 | 2012-01-11 | 深圳市水务(集团)有限公司 | Method for removing thallium from drinking water by enhanced conventional water treatment process |
| CN104773863A (en) * | 2015-02-13 | 2015-07-15 | 湖南永清环保研究院有限责任公司 | Deep purification process for thallium-containing waste water |
| CN104773878A (en) * | 2015-04-28 | 2015-07-15 | 韶关朗润环保科技有限公司 | Method for removing trace of thallium in sewage |
| 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 |
| CN107904400B (en) * | 2017-12-13 | 2019-09-03 | 清远先导材料有限公司 | The separation and recovery method of thallium in a kind of sulfuric acid nickel and cobalt solution |
| CN107904400A (en) * | 2017-12-13 | 2018-04-13 | 清远先导材料有限公司 | The separation and recovery method of thallium in a kind of sulfuric acid nickel and cobalt solution |
| CN110194538A (en) * | 2018-02-24 | 2019-09-03 | 湖南金蓝田环保工程有限公司 | A method of the coordination grafting advanced treating of heavy metal wastewater thereby containing thallium |
| CN108380395A (en) * | 2018-02-28 | 2018-08-10 | 湘潭大学 | A kind of lead thallium separation method of the concentrate of lead sulfide ore containing thallium |
| CN109626414A (en) * | 2019-01-31 | 2019-04-16 | 广州大学 | A method of thallium and rhenium being recycled in waste acid from smelting |
| CN109626414B (en) * | 2019-01-31 | 2021-06-08 | 广州大学 | Method for recovering thallium and rhenium from smelting waste acid |
| CN110252270A (en) * | 2019-07-05 | 2019-09-20 | 广东华准检测技术有限公司 | A kind of desorption cycle of the titanium peroxide containing thallium utilizes method and device |
| CN110252270B (en) * | 2019-07-05 | 2022-04-19 | 生态环境部华南环境科学研究所 | Desorption recycling method and device for thallium-containing titanium peroxide |
| CN111719046A (en) * | 2020-04-02 | 2020-09-29 | 桂林理工大学 | Method for separating thallium from water body and recovering extractant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026480C (en) | 1994-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1026480C (en) | Treatment method of thallium-containing waste water | |
| JP5943176B2 (en) | Method and apparatus for treating harmful substance-containing water. | |
| Nilsson | Removal of metals by chemical treatment of municipal waste water | |
| CN1958471A (en) | Method for treating ammonia nitrogen wastewater | |
| CN1326900A (en) | Flurine ion removing agent and method for treating flurine ion containing waste water using it | |
| CN1071716C (en) | Process for preparing pure alkali and/or ammonium tungstate solutions | |
| CN1810673A (en) | Coagulating-separation purifying agent and purifying means for drainage water | |
| US3697567A (en) | Removal of dissolved organic lead from aqueous alkyllead process effluents | |
| JP3635643B2 (en) | Waste liquid treatment method | |
| CN103951114A (en) | Heavy metal wastewater tertiary treatment and deep purification recycling process | |
| CN1330047A (en) | Process for treating sewage by neutralization and ion salt oxidization | |
| JP5794422B2 (en) | Treatment method and treatment apparatus for removing fluorine and harmful substances | |
| Moore | Solvent extraction of mercury from brine solutions with high-molecular-weight amines | |
| CN1144194A (en) | Process for treatment of waste water containing cyanogen by acidifying precipitation method | |
| CN1817803A (en) | Safety and ecological natural built-up flocculant, its production and use | |
| CN1032744C (en) | Method for clarifying tailing water | |
| CN1124235C (en) | Method for treating dreg containing arsenic | |
| CN103189318A (en) | Purification material for toxic matter-containing water and production method for same | |
| CN1333382A (en) | Method for producing active mineral liquid from granite | |
| JP4014276B2 (en) | Treatment method for boron-containing wastewater | |
| CN115321721B (en) | Treatment method for recycling heavy metals and degrading sewage of laboratory waste liquid | |
| KR100259563B1 (en) | Method for treating waste water containing heavy metal using material containing calsium, magnesium | |
| KR100318660B1 (en) | Sewage treatment with fluorine and methods for treating wastewater using the same | |
| JP3632226B2 (en) | Method for treating metal-containing wastewater | |
| KR100201179B1 (en) | Process for valorizing a liquid acid effluent containing heavy metals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |