CN106219712A - A kind of industrial wastewater heavy metals removal agent and preparation method thereof - Google Patents
A kind of industrial wastewater heavy metals removal agent and preparation method thereof Download PDFInfo
- Publication number
- CN106219712A CN106219712A CN201610830161.2A CN201610830161A CN106219712A CN 106219712 A CN106219712 A CN 106219712A CN 201610830161 A CN201610830161 A CN 201610830161A CN 106219712 A CN106219712 A CN 106219712A
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- Prior art keywords
- industrial wastewater
- heavy metals
- water
- removal agent
- metals removal
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 62
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910001868 water Inorganic materials 0.000 claims abstract description 37
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 30
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 30
- ISWQCIVKKSOKNN-UHFFFAOYSA-L Tiron Chemical compound [Na+].[Na+].OC1=CC(S([O-])(=O)=O)=CC(S([O-])(=O)=O)=C1O ISWQCIVKKSOKNN-UHFFFAOYSA-L 0.000 claims abstract description 20
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 19
- 150000002500 ions Chemical class 0.000 abstract description 14
- 239000012990 dithiocarbamate Substances 0.000 abstract description 5
- 241001597008 Nomeidae Species 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 150000004659 dithiocarbamates Chemical class 0.000 abstract description 3
- 239000002244 precipitate Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000012467 final product Substances 0.000 abstract 1
- RNCNHEVKZMEPJM-UHFFFAOYSA-N C(=O)O.N[Na] Chemical compound C(=O)O.N[Na] RNCNHEVKZMEPJM-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002738 chelating agent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 208000007848 Alcoholism Diseases 0.000 description 1
- 206010048768 Dermatosis Diseases 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides a kind of industrial wastewater heavy metals removal agent, it includes sodium sulfide, SDD, sodium hydroxide and water.Present invention also offers preparation method, in first water is added to reactor, be heated up to 50 55 DEG C, add sodium sulfide the most successively and SDD reacts 30 40min, put into sodium hydroxide the most again and react 60 70min, to obtain final product.The industrial wastewater heavy metals removal agent that the present invention prepares belongs to dithiocarbamates derivant, it can carry out chemical reaction with the various heavy metal ion in waste water, and it is quickly generated insoluble at short notice, low water content, easily filter the flocky precipitate removed, thus reach the mesh of heavy-metal ion removal from sewage, the removal of its industrial wastewater heavy metal ion can being applicable under various varying environment, there is removal of heavy metal ions rate high, consumption is few, low cost, easy to operate, sludge settling is effective, waste water not inverse, prepare the features such as simple and convenient.
Description
Technical field
The invention belongs to field of environmental improvement, relate to the improvement of heavy metal pollution, specifically a kind of industrial wastewater weight
Metal removal agent and using method thereof.
Background technology
Dithiocar-bamate (dithiocarbamate, DTC) has realized laboratory synthesis the most in mid-term in 19th century,
And due to the complexing power that it and metal are extremely strong, the derivant of multiple DTC is used for inorganic analysis.Hereafter, application is entered
One step expands, in the industrial production, and the vulcanization accelerator that is used as in rubber production, antioxidant；At agricultural production and medicine
In synthesis, DTC is also act as antibacterial and treatment dermatosis and the medicament of chronic alcoholism.
In today that environmental pollution is increasingly serious, DTC compounds relies on its complexing power extremely strong with metal, becomes again
The focus of pollution control area research.Owing to the discharge capacity of heavy metal wastewater thereby increases increasingly, the composition of waste water is more complicated, and right
Increasingly stricter in the emission request of waste water, this allows for traditional neutralization precipitation method no longer can meet process requirement.Therefore,
DTC effect in heavy metal wastewater thereby is administered is day by day obvious, and the research in this field is more and more deep.
Summary of the invention
For above-mentioned technical problem of the prior art, the invention provides one possess removal of heavy metal ions rate high,
Consumption is few, low cost, easy to operate, sludge settling is effective, the industrial wastewater heavy metals removal agent of waste water not inverse characteristic.
Present invention also offers the preparation method of a kind of industrial wastewater heavy metals removal agent.
In order to solve the technical problem of above-mentioned existence, the present invention uses following technical proposals:
A kind of industrial wastewater heavy metals removal agent, it includes sodium sulfide, SDD, sodium hydroxide
And water.
In further improvement project, a kind of industrial wastewater heavy metals removal agent, to count by weight, it includes sulfur
Change sodium 10-15g, SDD 10-15g, sodium hydroxide 2-3g, water 60-70 g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, by weight component take appropriate water, sodium sulfide, SDD and sodium hydroxide respectively；
B, will be added in reactor, and be heated to 50-55 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 30-40min；
Adding sodium hydroxide in d, past reactor to react, the response time is 60-70min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.Compared with prior art, the invention has the beneficial effects as follows:
The industrial wastewater heavy metals removal agent that the present invention prepares belongs to dithiocarbamates derivant (DTC class), and it can be often
In the range of the widest gentle pH value condition, carry out chemical reaction with the various heavy metal ion in waste water, and the most fast
Fast-growing becomes insoluble, low water content, the flocky precipitate of easily filtration removal, thus reaches heavy-metal ion removal from sewage
Mesh, the removal of its industrial wastewater heavy metal ion can being applicable under various varying environment, there is removal of heavy metal ions
Rate is high, consumption is few, low cost, easy to operate, the feature such as sludge settling is effective, waste water not inverse.
Below in conjunction with detailed description of the invention, the present invention is described in further detail:
[detailed description of the invention]
Embodiment 1
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 10g, Methyl disulfide for amino
Sodium formate 10g, sodium hydroxide 2g and water 60g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 10g, SDD 10g, sodium hydroxide 2g and water 60g；
B, add water in reactor, and be heated to 50 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 30min；
Adding sodium hydroxide in d, past reactor to react, the response time is 60min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 2
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 13g, Methyl disulfide for amino
Sodium formate 13g, sodium hydroxide 2.5g and water 65g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 13g, SDD 13g, sodium hydroxide 2.5g and water 65g.
B, add water in reactor, and be heated to 53 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 35min；
Adding sodium hydroxide in d, past reactor to react, the response time is 65min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 3
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 15g, Methyl disulfide for amino
Sodium formate 15g, sodium hydroxide 3g and water 70g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 15g, SDD 15g, sodium hydroxide 3g and water 70g.
B, add water in reactor, and be heated to 55 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 40min；
Adding sodium hydroxide in d, past reactor to react, the response time is 70min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 4
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 11g, Methyl disulfide for amino
Sodium formate 12g, sodium hydroxide 2.3g and water 63g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 11g, SDD 12g, sodium hydroxide 2.3g and water 63g.
B, add water in reactor, and be heated to 51.5 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 32.3min；
Adding sodium hydroxide in d, past reactor to react, the response time is 64min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 5
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 14g, Methyl disulfide for amino
Sodium formate 13g, sodium hydroxide 2.8g and water 68g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 14g, SDD 13g, sodium hydroxide 2.8g and water 68g.
B, add water in reactor, and be heated to 54.5 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 39min；
Adding sodium hydroxide in d, past reactor to react, the response time is 68min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 6
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 15g, Methyl disulfide for amino
Sodium formate 10g, sodium hydroxide 2.8g and water 67g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 15g, SDD 10g, sodium hydroxide 2.8g and water 67g.
B, add water in reactor, and be heated to 54 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 37min；
Adding sodium hydroxide in d, past reactor to react, the response time is 67min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Embodiment 7
A kind of industrial wastewater heavy metals removal agent, counts by weight, and it includes sodium sulfide 13g, Methyl disulfide for amino
Sodium formate 15g, sodium hydroxide 2.9g and water 68g.
The preparation method of a kind of industrial wastewater heavy metals removal agent, includes following steps:
A, take sodium sulfide 13g, SDD 15g, sodium hydroxide 2.9g and water 68g.
B, add water in reactor, and be heated to 54 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 38min；
Adding sodium hydroxide in d, past reactor to react, the response time is 69min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
To by the industrial wastewater treatment of heavy metal pollution, there is remarkable result, illustrate below in conjunction with concrete case.
Application examples 1: waste water takes from the electroplating wastewater of Zhuhai master Hardware Products Co., Ltd., this factory's waste water predominantly contains
Zinc waste water, former water is 20g/L containing zinc.
Processing method: take 2, special one liter of measuring cup, injects water sample, is stirred by stirring rod, in different measuring cups respectively
Add industrial wastewater heavy metals removal agent and the TMT heavy metal chelating agent of market purchasing that our company produces, be slowly stirred five points
Clock, standing sedimentation 30 minutes, survey metallic zinc content amount away from the sampling of liquid level 2-3 centimeters.
Treatment effect:
Application examples 2: waste water takes from Zhuhai Xin Li Electronic Science and Technology Co., Ltd., this factory's waste water is mainly copper-containing wastewater, former water cupric
For 3.8g/L.
Processing method: take 2, special one liter of measuring cup, injects water sample, is stirred by stirring rod, in different measuring cups respectively
Add industrial wastewater heavy metals removal agent and the TMT heavy metal chelating agent of market purchasing that our company produces, be slowly stirred five points
Clock, standing sedimentation 30 minutes, sample check weighing metallic copper content amount away from liquid level 2-3 centimeters.
Treatment effect:
| Add kind | The industrial wastewater heavy metals removal agent that our company produces | TMT heavy metal chelating agent |
| Dosage | 160PPM | 200PPM |
| Residue content | 0.05mg/L | 0.05mg/L |
In sum, the industrial wastewater heavy metals removal agent that the present invention prepares belongs to dithiocarbamates derivant (DTC
Class), and DTC analog derivative is most widely used, because of can be in the range of room temperature and the widest pH value condition, and in waste water
Cu2+、Cd2+、Hg2+、Pb2+、Mn2+、Ni2+、Zn2+、Cr3+ wait various heavy metal ion to carry out chemical reaction, and at short notice
Be quickly generated insoluble, low water content, easily filter the flocky precipitate removed, thus reach to go from sewage removing heavy metals from
The mesh of son.No matter the height of heavy metal ions in wastewater concentration, all can play removal effect, in contents of many kinds of heavy metal ion altogether
When depositing, also can remove, the situation that heavy metal ion exists with complex salt form (EDTA, citric acid etc.) simultaneously, also can play
Good removal effect.It is compared with the like product of market, have that removal of heavy metal ions rate is high, consumption is few, low cost, operation
Convenient, sludge settling is effective, waste water not inverse, prepare the features such as simple and convenient.
Although the present invention is described in detail with reference to above example, but aobvious and easy for those skilled in the art by the disclosure
See, and in the case of the principle and scope of the present invention limited without departing from described claim, can be to this
Bright make a variety of changes or revise.Therefore, the detailed description of disclosure embodiment is only used for explaining rather than for limiting this
Bright, but it is defined by the subject-matter of the claims the scope of protection.
Claims (3)
1. an industrial wastewater heavy metals removal agent, it is characterised in that it includes has sodium sulfide, Methyl disulfide for amino first
Acid sodium, sodium hydroxide and water.
A kind of industrial wastewater heavy metals removal agent the most according to claim 1, it is characterised in that count by weight, its
Include sodium sulfide 10-15g, SDD 10-15g, sodium hydroxide 2-3g, water 60-70 g.
3. the preparation method of an industrial wastewater heavy metals removal agent, it is characterised in that include following steps:
A, by weight component take appropriate water, sodium sulfide, SDD and sodium hydroxide respectively；
B, add water in reactor, and be heated to 50-55 DEG C；
C, after heating completes, in reactor, be sequentially added into sodium sulfide and SDD react,
Response time is 30-40min；
Adding sodium hydroxide in D, past reactor to react, the response time is 60-70min；
E, reacted after, obtain industrial wastewater heavy metals removal agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830161.2A CN106219712A (en) | 2016-09-19 | 2016-09-19 | A kind of industrial wastewater heavy metals removal agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830161.2A CN106219712A (en) | 2016-09-19 | 2016-09-19 | A kind of industrial wastewater heavy metals removal agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106219712A true CN106219712A (en) | 2016-12-14 |
Family
ID=58076015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610830161.2A Pending CN106219712A (en) | 2016-09-19 | 2016-09-19 | A kind of industrial wastewater heavy metals removal agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106219712A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955451A (en) * | 2017-02-27 | 2017-07-18 | 湖南云平环保科技有限公司 | Incineration of refuse flyash heavy metal chelant and preparation method thereof |
| CN107247028A (en) * | 2017-03-06 | 2017-10-13 | 四川新华扬山野生物有限公司 | A kind of method of total fiber element enzyme activity detection accuracy in raising feed |
| CN110835130A (en) * | 2019-12-03 | 2020-02-25 | 云南科力新材料股份有限公司 | Heavy metal ion trapping agent and preparation method thereof |
| CN111359136A (en) * | 2020-04-03 | 2020-07-03 | 连云港新江环保材料有限公司 | Dioxin detoxification chelating agent for fly ash and preparation method thereof |
| CN111825191A (en) * | 2020-05-22 | 2020-10-27 | 西北矿冶研究院 | Acid sewage heavy metal capture agent |
| CN111977690A (en) * | 2020-09-07 | 2020-11-24 | 江西拓泓新材料有限公司 | Method for removing copper and other impurities in preparation of tantalum-niobium oxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242719A (en) * | 1995-05-19 | 2000-01-26 | 劳伦斯·克赖斯勒 | Method for recovering and separating metals from waste streams |
-
2016
- 2016-09-19 CN CN201610830161.2A patent/CN106219712A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242719A (en) * | 1995-05-19 | 2000-01-26 | 劳伦斯·克赖斯勒 | Method for recovering and separating metals from waste streams |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955451A (en) * | 2017-02-27 | 2017-07-18 | 湖南云平环保科技有限公司 | Incineration of refuse flyash heavy metal chelant and preparation method thereof |
| CN107247028A (en) * | 2017-03-06 | 2017-10-13 | 四川新华扬山野生物有限公司 | A kind of method of total fiber element enzyme activity detection accuracy in raising feed |
| CN110835130A (en) * | 2019-12-03 | 2020-02-25 | 云南科力新材料股份有限公司 | Heavy metal ion trapping agent and preparation method thereof |
| CN111359136A (en) * | 2020-04-03 | 2020-07-03 | 连云港新江环保材料有限公司 | Dioxin detoxification chelating agent for fly ash and preparation method thereof |
| CN111825191A (en) * | 2020-05-22 | 2020-10-27 | 西北矿冶研究院 | Acid sewage heavy metal capture agent |
| CN111977690A (en) * | 2020-09-07 | 2020-11-24 | 江西拓泓新材料有限公司 | Method for removing copper and other impurities in preparation of tantalum-niobium oxide |
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