CN106277249A - A kind of method removing waste water glyphosate - Google Patents
A kind of method removing waste water glyphosate Download PDFInfo
- Publication number
- CN106277249A CN106277249A CN201610762418.5A CN201610762418A CN106277249A CN 106277249 A CN106277249 A CN 106277249A CN 201610762418 A CN201610762418 A CN 201610762418A CN 106277249 A CN106277249 A CN 106277249A
- Authority
- CN
- China
- Prior art keywords
- glyphosate
- waste water
- total phosphorus
- chelating agent
- regulation
- 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.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 25
- HPNWUXSHPAXNKY-UHFFFAOYSA-N 2-(phosphonomethylamino)acetic acid;hydrate Chemical compound O.OC(=O)CNCP(O)(O)=O HPNWUXSHPAXNKY-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000005562 Glyphosate Substances 0.000 claims abstract description 46
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical compound OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229940097068 glyphosate Drugs 0.000 claims abstract description 46
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 38
- 239000011574 phosphorus Substances 0.000 claims abstract description 38
- 239000002738 chelating agent Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 9
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 8
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 150000002505 iron Chemical class 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010668 complexation reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000013019 agitation Methods 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004471 Glycine Substances 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- C02F1/5236—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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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 present invention relates to a kind of method removing waste water glyphosate；Specifically comprising the following steps that add in the glyphosate waste water of certain total phosphorus concentration in right amount can be with the chelating agent of glyphosate specificity complexation, mix homogeneously, regulation pH to acid, staticly settles, filters, the waste water after being processed.Waste water after this method processes, total tp removal rate is up to more than 97%, can effectively remove the glyphosate in waste water, reduces total phosphorus.The present invention utilizes iron salt complex-precipitation to remove the glyphosate in waste water, and reaction condition is gentle, and processing cost is low, effective, simple to operate, and the glyphosate waste water concentration being suitable for is wider.
Description
Technical field
The invention belongs to treatment of Organic Wastewater field, relate to a kind of utilizing iron salt complex-precipitation to remove waste water glyphosate
Method.
Background technology
Glyphosate is current the most most popular one efficient organic phosphates herbicide, its waste water yield is big,
Phosphorus content is high, biodegradability is poor.The glyphosate waste water of below standard discharge, not only can cause body eutrophication, also can be to aquatic
Biological and mammal, geobiont and amphibian animal etc. produce toxic action, and entering subsoil water can heavy damage ecology
Environment.
China issues 1158, No. 1744 bulletins successively, it is stipulated that 10% gyphosate solution is wholly off life before the end of the year 2009
Producing, the glyphosate content glyphosate mixture water preparation less than 30% starts no longer to retain former agriculture chemical registration card from JIUYUE, 2012.How
A large amount of waste water containing glyphosate that processes of high efficiency, low cost becomes a difficult problem.
For glyphosate waste water, the method such as domestic main employing coagulating sedimentation, chemical oxidation, biochemistry processes.Through above-mentioned side
After method processes, waste water glyphosate content is the highest, and total phosphorus (TP) difficulty reaches discharge standard, therefore, finds a kind of efficient low one-tenth
This remove waste water glyphosate thus reduce the method for total phosphorus and be particularly important.
Summary of the invention
After it is an object of the invention to process for glyphosate waste water, glyphosate content is the highest, and total phosphorus is difficult to up to standard, it is provided that
A kind of high efficiency, low cost utilizes the method that waste water glyphosate is removed in iron salt complex-precipitation, it is provided that in the method, glyphosate is had spy
The selection of the chelating agent of opposite sex complexing.
The purpose of the present invention can be achieved through the following technical solutions: a kind of method removing waste water glyphosate, it is concrete
Step is as follows: adding in the glyphosate waste water of certain total phosphorus concentration in right amount can be mixed with the chelating agent of glyphosate specificity complexation
Closing uniformly, regulation pH, to acid, staticly settles, and filters, the waste water after being processed.
In the most above-mentioned glyphosate waste water, total phosphorus concentration is 8～100mg/L.
The most above-mentioned chelating agent is the solubility trivalent iron salts such as anhydrous ferric trichloride, iron sulfate or ferric nitrate.
Preferably regulation pH is the most acid is 4～6 for regulation pH value.
The most above-mentioned chelating agent addition is that to control the mol ratio of ferric iron and total phosphorus be (4～6): 1.
Beneficial effect:
The invention provides a kind of cheap effective method removing waste water glyphosate, have the advantage that
1, specificity chelating agent of the present invention is easy to get and cheap.
2, the complex-precipitation method reaction condition that the present invention uses is gentle, simple to operate, is swift in response, it is not necessary to additional energy
Input, processing cost is low, high treating effect.
3, the glyphosate waste water concentration range that the present invention processes is wider, for the glyphosate waste water of general concentration through the present invention
Method all can efficiently remove waste water glyphosate after processing, reduces total phosphorus.
Detailed description of the invention:
Embodiment 1
Choosing anhydrous ferric trichloride is chelating agent, adds it to the glyphosate that total phosphorus concentration is 9mg/L under magnetic agitation
In waste water, wherein ferric iron and total phosphorus mol ratio are 6:1, i.e. anhydrous ferric trichloride addition is 0.28g/L, mix homogeneously, adjust
Joint pH is 4, staticly settles filtration, surveys filtrate glyphosate, total phosphorus content, and experimental result is that glyphosate content is by former water
49mg/L reduces to 0.84mg/L, and total phosphorus is reduced to 0.23mg/L by 9mg/L, glyphosate and total tp removal rate be respectively 98.29%,
97.44%.
Embodiment 2
Choosing anhydrous ferric trichloride is chelating agent, adds it to the glyphosate that total phosphorus concentration is 15mg/L under magnetic agitation
In waste water, wherein ferric iron and total phosphorus mol ratio are 4:1, i.e. anhydrous ferric trichloride addition is 0.31g/L, mix homogeneously, adjust
Joint pH is 6, staticly settles filtration, surveys filtrate glyphosate, total phosphorus content, and experimental result is that glyphosate content is by former water
82mg/L reduces to 2.11mg/L, and total phosphorus is reduced to 0.41mg/L by 15mg/L, glyphosate and total tp removal rate be respectively 97.43%,
97.27%.
Embodiment 3
Choosing anhydrous ferric trichloride is chelating agent, adds it to the glyphosate that total phosphorus concentration is 92mg/L under magnetic agitation
In waste water, wherein ferric iron and total phosphorus mol ratio are 4:1, i.e. anhydrous ferric trichloride addition is 1.93g/L, mix homogeneously, adjust
Joint pH is 6, staticly settles, and filters, and surveys filtrate glyphosate, total phosphorus content, and experimental result is that glyphosate content is by former water
503mg/L reduces to 4.18mg/L, and total phosphorus is reduced to 0.79mg/L by 92mg/L, glyphosate and total tp removal rate be respectively 99.17%,
99.14%, obvious processing effect.
Embodiment 4
Choosing iron sulfate is chelating agent, adds it to the glyphosate waste water that total phosphorus concentration is 70mg/L under magnetic agitation
In, wherein ferric iron and total phosphorus mol ratio are 5:1, i.e. iron sulfate addition is 4.53g/L, mix homogeneously, and regulation pH is 4, quiet
Putting precipitation to filter, survey filtrate glyphosate, total phosphorus content, experimental result is that glyphosate content is reduced to by the 383mg/L of former water
4.65mg/L, total phosphorus is reduced to 0.91mg/L, glyphosate and total tp removal rate by 70mg/L and is respectively 98.79%, 98.70%.
Embodiment 5
Choosing iron sulfate is chelating agent, adds it to the glyphosate waste water that total phosphorus concentration is 32mg/L under magnetic agitation
In, wherein ferric iron and total phosphorus mol ratio are 5:1, i.e. iron sulfate addition is 2.07g/L, mix homogeneously, and regulation pH is 5, quiet
Putting precipitation, filter, survey filtrate glyphosate, total phosphorus content, experimental result is that glyphosate content is reduced to by the 175mg/L of former water
1.45mg/L, total phosphorus reduced to 0.31mg/L by 32mg/L, and glyphosate, total tp removal rate are respectively 99.17%, 99.03%, it is seen that
Ferric iron generally has preferable complex-precipitation effect to glyphosate.
Embodiment 6
Taking the factory integration regulating reservoir waste water of Zhenjiang glycine legal system glyphosate, the initial pH of water sample is 6, and COD is
8227mg/L, total phosphorus is 73.5mg/L, and wherein Phos is 32.39mg/L, and glyphosate is 21.08mg/L, chooses anhydrous trichlorine
Change ferrum is chelating agent, adds in waste water under magnetic agitation, and ferric iron and total phosphorus mol ratio are 5:1, i.e. 1.93g/L, mix homogeneously,
Regulation pH is 5, staticly settles, and filters, and surveys total phosphorus, glyphosate, content of inorganic phosphorus in filtrate, and experimental result total phosphorus is 0.48mg/
L, Phos is 0.11mg/L, and glyphosate is 0.26mg/L, and total tp removal rate is 99.35%, and phosphor-removing effect is notable.
Claims (5)
1. the method removing waste water glyphosate, it specifically comprises the following steps that in the glyphosate waste water of certain total phosphorus concentration
Adding chelating agent, mix homogeneously, regulation pH to acid, staticly settles, filters, the waste water after being processed.
Method the most according to claim 1, it is characterised in that in described glyphosate waste water, total phosphorus concentration is 8～100mg/
L。
Method the most according to claim 1, it is characterised in that described chelating agent is anhydrous ferric trichloride, iron sulfate or nitre
Acid ferrum.
Method the most according to claim 1, it is characterised in that regulation pH value is 4～6.
Method the most according to claim 1, it is characterised in that chelating agent addition be control ferric iron and total phosphorus mole
Than being (4～6): 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762418.5A CN106277249A (en) | 2016-08-29 | 2016-08-29 | A kind of method removing waste water glyphosate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762418.5A CN106277249A (en) | 2016-08-29 | 2016-08-29 | A kind of method removing waste water glyphosate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106277249A true CN106277249A (en) | 2017-01-04 |
Family
ID=57674939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610762418.5A Pending CN106277249A (en) | 2016-08-29 | 2016-08-29 | A kind of method removing waste water glyphosate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106277249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321736A (en) * | 2022-08-24 | 2022-11-11 | 中国科学院过程工程研究所 | Treatment method of glyphosate production wastewater and high-value recycling of phosphorus-containing waste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191540A (en) * | 1995-07-25 | 1998-08-26 | 曾尼卡有限公司 | Process for preparation of N-phosphonomethylglycine |
| CN1339946A (en) * | 1999-01-15 | 2002-03-13 | 科金斯公司 | Adjuvant composition |
| CN102583673A (en) * | 2012-02-27 | 2012-07-18 | 中国科学院南京土壤研究所 | Method for removing glyphosate in water body by using montmorillonite |
| CN103351070A (en) * | 2013-07-26 | 2013-10-16 | 闽南师范大学 | Method for treating glyphosate waste water |
-
2016
- 2016-08-29 CN CN201610762418.5A patent/CN106277249A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191540A (en) * | 1995-07-25 | 1998-08-26 | 曾尼卡有限公司 | Process for preparation of N-phosphonomethylglycine |
| CN1068007C (en) * | 1995-07-25 | 2001-07-04 | 曾尼卡有限公司 | Process for preparation of N-phosphonomethylglycine |
| CN1339946A (en) * | 1999-01-15 | 2002-03-13 | 科金斯公司 | Adjuvant composition |
| CN102583673A (en) * | 2012-02-27 | 2012-07-18 | 中国科学院南京土壤研究所 | Method for removing glyphosate in water body by using montmorillonite |
| CN103351070A (en) * | 2013-07-26 | 2013-10-16 | 闽南师范大学 | Method for treating glyphosate waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321736A (en) * | 2022-08-24 | 2022-11-11 | 中国科学院过程工程研究所 | Treatment method of glyphosate production wastewater and high-value recycling of phosphorus-containing waste |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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