CN101108306A - Method for removing heavy metal in plants raffinate with electrodialysis method - Google Patents
Method for removing heavy metal in plants raffinate with electrodialysis method Download PDFInfo
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- CN101108306A CN101108306A CNA200710040144XA CN200710040144A CN101108306A CN 101108306 A CN101108306 A CN 101108306A CN A200710040144X A CNA200710040144X A CN A200710040144XA CN 200710040144 A CN200710040144 A CN 200710040144A CN 101108306 A CN101108306 A CN 101108306A
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- Prior art keywords
- heavy metal
- exchange membrane
- extraction liquid
- plant extraction
- removes
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 21
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 13
- 239000003014 ion exchange membrane Substances 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical group O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 6
- 238000005349 anion exchange Methods 0.000 claims description 5
- 150000001450 anions Chemical class 0.000 claims description 5
- 238000005341 cation exchange Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000006396 nitration reaction Methods 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 238000004847 absorption spectroscopy Methods 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000000673 graphite furnace atomic absorption spectrometry Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000096284 Gynochthodes officinalis Species 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 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
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000000463 material 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
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The invention relates to a method of depriving heavy metal in plant extracting solution by electrodialysis. In particular, the procedure comprises that: adding 6 per cent Na2SO4 solution and 0.1MHC1 into an anode compartment and a cathode compartment, the plant extracting solution in the a middle chamber circles in steady flow, choose 70 to 80 per cent limit current value as the work current, proceed electrodialysis and digestion with strong oxidizer, get clarified and transparent solution, measure the content of heavy metal in the plant extracting solution by absorption spectroscopy. The method has low energy consumption, simple operation and is environment-protected.
Description
Technical field
The invention belongs to the method field that removes heavy metal in the plant extraction liquid, particularly relate to a kind of method that removes heavy metal in the plant extraction liquid with electroosmose process.
Background technology
Very pay close attention to the content problem of heavy metal in the Chinese medicine in the world, it has become influences the Chinese medicine outlet, enter one of main restricting factor of international market.According to present international standard, heavy metal mainly comprises lead, cadmium, chromium, mercury, copper, arsenic etc., " Chinese pharmacopoeia (version in 2005) regulation heavy metal be meant under the regulation experiment condition can with the metal impurities of thioacetamide or vulcanized sodium effect colour developing.
Chinese medicinal ingredients complexity, the existence of contained different heavy metals also might be different, and the toxicity of heavy metal and its existence are closely related, are harmless as crome metal, and 6 valency chromium have strong toxicity, are carcinogen.
Reduce the content of heavy metal in the Chinese medicine, initiatively adapting to the requirement that traditional Chinese medicine progressively globalizes has become very urgent key subjects.
The heavy metal removing method comprises flocculence, ion-exchange-resin process, electroosmose process, and wherein electroosmose process has advantages such as energy consumption is low, operating maintenance convenient, free from environmental pollution.Electrodialysis system alternately is arranged between two electrodes by a series of yin, yang films, forms many little hydroeciums that separated by film, See Figure.After handling electroplating wastewater, waste water composition is constant with electroosmose process, helps return-enclosure and uses.Contain Cu
2+, Ni
2+, Zn
2+, Cr
2+Deng the waste water of the metal ion electrodialysis process that all suits to use, wherein the nickel-containing waste water treatment technology is the most ripe, existing complete industrialized unit.
Summary of the invention
The purpose of this invention is to provide the method that a kind of electroosmose process removes heavy metal in the plant extraction liquid, this method energy consumes low, easy and simple to handle, environmental protection.
A kind of electroosmose process of the present invention removes the method for heavy metal in the plant extraction liquid, comprises the steps:
(1) anion and cation exchange membrane soaks in deionized water after 24 hours at least, adds 6%Na respectively in the anode chamber of electric dialyzator, cathode chamber
2SO
4Solution and 0.1MHCl, the plant extraction liquid in the medial compartment circulates with constant current, and the 70%-80% that selects the carrying current value is an operating current, carries out electrodialysis;
(2) with strong oxidizer or mixture (1-10: 0-1) clear up, clear solution, directly measure wherein content of beary metal with atomic absorption spectrography (AAS).
Described anion and cation exchange membrane is homogeneous ion-exchange membrane, semihomogeneous ion exchange membrane or heterogeneous ion-exchange membrane, preferred homogeneous ion-exchange membrane.
Described constant current circulation is 10-30r/min, preferred 10r/min.
The described electrodialysis time is 5-15 minute, preferred 15 minutes.
Described strong oxidizer is selected from red fuming nitric acid (RFNA), perchloric acid or their nitration mixture, and ratio is 10: 1, preferred red fuming nitric acid (RFNA)-perchloric acid nitration mixture.
Beneficial effect
(1) energy consumption of the present invention is low, and power consumption is directly proportional with solution concentration; (2) environmentally friendly, the three wastes are few; (3) the device design is flexible with system applies, and operating maintenance is convenient, and in running, several important technical parameters such as control voltage, electric current, concentration, flow, pressure and temperature just can guarantee stable operation, help it and further apply.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
5kg Morinda officinalis medicinal material is heated to boiling with 1: 40 deionized water, keeps 6h, is concentrated into 7L as original liquid.Homogeneous ion-exchange membrane soaks in deionized water after 24 hours at least, adds 6%Na respectively in the anode chamber of electric dialyzator, cathode chamber
2SO
4Solution and 0.1MHCl, Morinda officinalis extract in the medial compartment circulates with the 10r/min constant current, the 70%-80% that selects the carrying current value is an operating current, in the time of behind the electrodialysis 15min, with red fuming nitric acid (RFNA)-perchloric acid nitration mixture (10: 1) clear up clear liquid, adopt lead and content of chromium ion in the graphite furnace atomic absorption spectrometry solution, wherein the graphite furnace atomic absorption spectrometry condition sees Table 1, graphite furnace heating schedule condition sees Table 2, and each sample introduction product volume is 20 μ l.
Table 1 graphite furnace atomic absorption spectrometry condition
| Condition determination | Standard |
| Wavelength slit hollow cathode lamp current | 283.3nm 1.3nm 7.5mA |
Table 2 graphite furnace heating condition
| Program | Temperature (℃) | Time (second) |
| Dry ashing atomized cleaning | 120 450 1700 1900 | 25 25 7 3 |
As a result, plumbous removal efficiency has reached 56%, and the removal efficiency of chromium has reached 74%, consumes energy to be 157W.If hypothesis no any loss in the process of extract concentrate drying, the dry powder yield with 15% is calculated, and then is equivalent to the lead content in the dry powder has been dropped to 14.5ppm from 33ppm, and chromium content has dropped to 4.5ppm from 17.3ppm.
Claims (6)
1. an electroosmose process removes the method for heavy metal in the plant extraction liquid, comprises the following steps:
(1) anion and cation exchange membrane soaks in deionized water after 24 hours at least, adds 6%Na respectively in the anode chamber of electric dialyzator, cathode chamber
2SO
4Solution and 0.1MHCl, the plant extraction liquid in the medial compartment circulates with constant current, and the 70%-80% that selects the carrying current value is an operating current, carries out electrodialysis;
(2) use 1-10: 0-1 strong oxidizer or mixture are cleared up, clear solution, directly measure wherein content of beary metal with atomic absorption spectrography (AAS).
2. a kind of electroosmose process according to claim 1 removes the method for heavy metal in the plant extraction liquid, it is characterized in that: described anion and cation exchange membrane is selected from homogeneous ion-exchange membrane, semihomogeneous ion exchange membrane or heterogeneous ion-exchange membrane;
3. a kind of electroosmose process according to claim 1 removes the method for heavy metal in the plant extraction liquid, it is characterized in that: described constant current circulation is 10-30r/min; The electrodialysis time is 5-15 minute.
4. a kind of electroosmose process according to claim 1 removes the method for heavy metal in the plant extraction liquid, it is characterized in that: described strong oxidizer is selected from red fuming nitric acid (RFNA), perchloric acid or their nitration mixture, and ratio is 7-10: 0-1.
5. a kind of electroosmose process according to claim 2 removes the method for heavy metal in the plant extraction liquid, it is characterized in that: described anion and cation exchange membrane is a homogeneous ion-exchange membrane.
6. a kind of electroosmose process according to claim 3 removes the method for heavy metal in the plant extraction liquid, it is characterized in that: described constant current circulation is 10r/min; Electric osmose is 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710040144A CN101108306B (en) | 2007-04-27 | 2007-04-27 | Method for removing heavy metal in plants raffinate with electrodialysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710040144A CN101108306B (en) | 2007-04-27 | 2007-04-27 | Method for removing heavy metal in plants raffinate with electrodialysis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101108306A true CN101108306A (en) | 2008-01-23 |
| CN101108306B CN101108306B (en) | 2010-05-19 |
Family
ID=39040686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710040144A Active CN101108306B (en) | 2007-04-27 | 2007-04-27 | Method for removing heavy metal in plants raffinate with electrodialysis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101108306B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703527B (en) * | 2009-11-11 | 2013-10-02 | 北京欧凯纳斯科技有限公司 | Application of functional polymer film in removing heavy metal in traditional Chinese medicine |
| CN105124742A (en) * | 2015-08-28 | 2015-12-09 | 安徽中烟工业有限责任公司 | Method for selectively reducing content of Cr in paper-making reconstituted tobacco extraction liquid |
| CN105124743A (en) * | 2015-08-28 | 2015-12-09 | 安徽中烟工业有限责任公司 | Method for selectively reducing content of Cd in paper-making reconstituted tobacco extraction liquid |
| CN105617867A (en) * | 2016-01-11 | 2016-06-01 | 合肥科佳高分子材料科技有限公司 | Method for removing heavy metal ions from asparagus saponin extraction liquid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780794A (en) * | 2003-04-30 | 2006-05-31 | 株式会社荏原制作所 | Method and apparatus for treating waste water |
| CN100402446C (en) * | 2005-04-28 | 2008-07-16 | 浙江工业大学 | Treatment of lead-containing waste water |
-
2007
- 2007-04-27 CN CN200710040144A patent/CN101108306B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703527B (en) * | 2009-11-11 | 2013-10-02 | 北京欧凯纳斯科技有限公司 | Application of functional polymer film in removing heavy metal in traditional Chinese medicine |
| CN105124742A (en) * | 2015-08-28 | 2015-12-09 | 安徽中烟工业有限责任公司 | Method for selectively reducing content of Cr in paper-making reconstituted tobacco extraction liquid |
| CN105124743A (en) * | 2015-08-28 | 2015-12-09 | 安徽中烟工业有限责任公司 | Method for selectively reducing content of Cd in paper-making reconstituted tobacco extraction liquid |
| CN105617867A (en) * | 2016-01-11 | 2016-06-01 | 合肥科佳高分子材料科技有限公司 | Method for removing heavy metal ions from asparagus saponin extraction liquid |
| CN105617867B (en) * | 2016-01-11 | 2018-04-20 | 合肥科佳高分子材料科技有限公司 | A kind of method for removing heavy metal ion in asparagus saponin extract solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101108306B (en) | 2010-05-19 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI MODERN TCM CO., LTD. Free format text: FORMER NAME: SHANGHAI MODERN CHINESE TRADITIONAL MEDICINE TECHNOLOGY DEVELOPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200051 7F-C, 600 lane, Tian Shan Road, Shanghai, Changning District, 4 Patentee after: Shanghai Sundise Chinese Medicine Technology Development Co.,Ltd. Address before: 200051 7F-C, 600 lane, Tian Shan Road, Shanghai, Changning District, 4 Patentee before: Shanghai Sundise |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200051 7F-C, 600 lane, Tian Shan Road, Shanghai, Changning District, 4 Patentee after: Shanghai Baiyang Pharmaceutical Co.,Ltd. Address before: 200051 7F-C, 600 lane, Tian Shan Road, Shanghai, Changning District, 4 Patentee before: Shanghai Sundise Chinese Medicine Technology Development Co.,Ltd. |
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