CN205773845U - A kind of processing system of N-(phosphonomethyl) iminodiacetic acid wastewater recycling - Google Patents
A kind of processing system of N-(phosphonomethyl) iminodiacetic acid wastewater recycling Download PDFInfo
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- CN205773845U CN205773845U CN201620457010.2U CN201620457010U CN205773845U CN 205773845 U CN205773845 U CN 205773845U CN 201620457010 U CN201620457010 U CN 201620457010U CN 205773845 U CN205773845 U CN 205773845U
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Abstract
The utility model discloses the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling, described processing system includes: wastewater collection pond, for storing the waste water produced in PMIDA production process, and carries out the process that homogenizes；Filtration system, for the N-(phosphonomethyl) iminodiacetic acid wastewater discharged in wastewater collection pond is carried out filtration treatment, and the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration treatment meets the influent quality requirement of film separation system；Film separation system, for carrying out membrane separation to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment；Desalting processing system, carries out desalting processing for the concentrated solution being discharged film separation system；CWO response system, the permeate for being discharged film separation system carries out degraded oxidation；And crystal system, carry out crystallization treatment for the mother solution that CWO response system is discharged.The resource that this utility model really realizes N-(phosphonomethyl) iminodiacetic acid wastewater by above process recycles, it is achieved turn waste into wealth.
Description
Technical field
This utility model belongs to agricultural chemicals waste water process field, especially relates to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling.
Background technology
PMIDA is to produce wide spectrum to go out the primary raw material of natural disposition post-emergence herbicide, is also important intermediate in pesticide, medicine, rubber, plating, dye industry.In process of production, can produce substantial amounts of waste water, complicated in this type of waste water, sodium chloride content is about 9%-15%, possibly together with the material such as PMIDA, phosphorous acid.
Summary of the invention
The purpose of this utility model is, for the deficiencies in the prior art, it is provided that the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling.
To this end, this utility model is by the following technical solutions:
A kind of processing system of N-(phosphonomethyl) iminodiacetic acid wastewater recycling, the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling is for carrying out recycling to the waste water produced in PMIDA production process, and the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling includes:
-wastewater collection pond, described wastewater collection pond is for storing the waste water produced in PMIDA production process, and carries out the process that homogenizes；
-filtration system, described filtration system is for carrying out filtration treatment to the N-(phosphonomethyl) iminodiacetic acid wastewater discharged in wastewater collection pond, and the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration treatment meets the influent quality requirement of film separation system；
-film separation system, described film separation system is for carrying out membrane separation to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment；
-desalting processing system, described desalting processing system carries out desalting processing for the concentrated solution being discharged film separation system；
-CWO response system, described CWO response system carries out degraded oxidation for the permeate being discharged film separation system；And
-crystal system, described crystal system carries out crystallization treatment for the mother solution being discharged CWO response system.
Preferably, described filtration system includes sand filtering device and ultrafiltration apparatus, described sand filtering device is for removing the large particulate matter in N-(phosphonomethyl) iminodiacetic acid wastewater and reaching to enter the influent quality requirement of ultrafiltration apparatus, and the permeate of described ultrafiltration apparatus enters film separation system and carries out membrane separation.
Preferably, described film separation system includes nanofiltration device, described nanofiltration device is for carrying out nanofiltration point salt treatment to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment, the concentrated solution of described nanofiltration device is delivered to desalting processing system and carries out desalting processing, and the permeate of described nanofiltration device is delivered to CWO oxidation system and carries out degraded oxidation.
Preferably, described desalting processing system includes electrodialysis plant, and described electrodialysis plant carries out desalting processing for the concentrated solution being discharged film separation system.
Preferably, the desalination solution that the diluting compartment of described electrodialysis plant is discharged is as PMIDA water preparation, and the concentrated solution that the enriched chamber of described electrodialysis plant is discharged is delivered to CWO oxidation system and carries out degraded oxidation.
Preferably, CWO response system includes CWO reaction tower, copper salt catalyst is added in described CWO reaction tower, and in tower, it being passed through compressed air, the organic compound in mother solution is at 160 DEG C～200 DEG C, under 5Mpa～8Mpa pressure, mix with air, making organic molecule chain interruption, little molecular oxygen chemical conversion water and carbon dioxide, wherein carbon dioxide compression air takes tail gas out of.
Preferably, described crystal system includes crystallizer and centrifuge, described crystallizer is for carrying out decrease temperature crystalline to through the degraded N-(phosphonomethyl) iminodiacetic acid wastewater of oxidation of CWO response system, and described centrifuge is for reclaiming in crystallized tank the disodium hydrogen phosphate solid in discharge solidliquid mixture.
Preferably, the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling also includes after-treatment system, and described after-treatment system carries out post processing for the crystalline mother solution being discharged crystal system.
Preferably, described after-treatment system includes heat exchanger, second sand filtering device, second nanofiltration device and MVR vaporizer, described heat exchanger carries out, for the crystalline mother solution being discharged crystal system, the heating that heats up, crystalline mother solution after the heating that heats up delivers to the second sand filtering device and for the solid particle removing in crystalline mother solution, the permeate of the second sand filtering device is delivered to the second nanofiltration device and carries out nanofiltration point salt treatment, the defeated crystal system that is delivered to of the concentrated solution of described second nanofiltration device carries out recrystallization, the permeate of described second nanofiltration device is delivered to MVR vaporizer and is evaporated crystallization and obtains solid sodium chloride, solid sodium chloride can be sold as industrial salt.
MVR technology mentioned in this utility model is mechanical steam recompression technology (mechanical vapor
Recompression) abbreviation, is the indirect steam and energy thereof utilizing vapo(u)rization system self to produce, and through vapour compression machine compressed action, promotes the heat content of indirect steam, leads into cooling tower, the cooling water circulation preheating material of cooling tower.So circulation provides heat energy to vapo(u)rization system, thus reduces a power-saving technology of the demand of the energy to external world.
This utility model collects N-(phosphonomethyl) iminodiacetic acid wastewater carry out the process that homogenizes by wastewater collection pond, so that the water stabilization of the N-(phosphonomethyl) iminodiacetic acid wastewater discharged in the wastewater collection pond；By filtration system, N-(phosphonomethyl) iminodiacetic acid wastewater carried out filtration treatment, thus reduce the risk of follow-up workshop section blocking, extend the flushing cycle of follow-up workshop section；By film separation system, N-(phosphonomethyl) iminodiacetic acid wastewater carried out membrane separation, thus reduce the process energy consumption of CWO response system, reach the effect of low-carbon environment-friendly；The concentrated solution discharged film separation system by desalting processing system carries out desalting processing, and the desalination solution after desalination can sell as PMIDA water preparation, thus N-(phosphonomethyl) iminodiacetic acid wastewater has been carried out recycling, and the concentrated solution discharged of desalting processing system is delivered to reduce CWO response system and carries out oxidation processes of degrading, thus improve the utilization rate of N-(phosphonomethyl) iminodiacetic acid wastewater；By reducing CWO response system, N-(phosphonomethyl) iminodiacetic acid wastewater is carried out oxidation processes of degrading, organophosphor in N-(phosphonomethyl) iminodiacetic acid wastewater is converted into Phos, thus improve the resource utilization rate of N-(phosphonomethyl) iminodiacetic acid wastewater, small organic molecule is converted into carbon dioxide and water, thus reduces the hazardness of N-(phosphonomethyl) iminodiacetic acid wastewater；By crystal system by the Phos crystallization in the N-(phosphonomethyl) iminodiacetic acid wastewater after degraded oxidation, Phos is sodium dihydrogen phosphate solid.The resource that this utility model really realizes N-(phosphonomethyl) iminodiacetic acid wastewater by above process recycles, it is achieved turn waste into wealth.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling provided by the utility model；
In figure: 101-wastewater collection pond；201-the first sand filtering device；202-ultrafiltration apparatus；301-the first nanofiltration device；401-electrodialysis plant；501-CWO reaction tower；601-crystallizer；602-centrifuge；701-heat exchanger；702-the second sand filtering device；703-the second nanofiltration device；704-MVR vaporizer.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail referring to the drawings.
As it is shown in figure 1, the processing system of N-(phosphonomethyl) iminodiacetic acid wastewater recycling includes:
-wastewater collection pond, for storing the waste water produced in PMIDA production process, and carries out the process that homogenizes；
-filtration system, for the N-(phosphonomethyl) iminodiacetic acid wastewater discharged in wastewater collection pond is carried out filtration treatment, and the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration treatment meets the influent quality requirement of film separation system；Filtration system includes the first sand filtering device 201 and the first ultrafiltration apparatus 202；
-film separation system, for carrying out membrane separation to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment；Film separation system includes the first nanofiltration device 301；
-desalting processing system, carries out desalting processing for the concentrated solution being discharged film separation system；Desalting processing system includes electrodialysis plant 401；
-CWO response system, the permeate for being discharged film separation system carries out degraded oxidation；CWO response system includes CWO reaction tower 501；
-crystal system, carries out crystallization treatment for the mother solution being discharged CWO response system；Crystal system includes crystallizer 601 and centrifuge 602；And
-after-treatment system, carries out post processing for the crystalline mother solution being discharged crystal system；After-treatment system includes heat exchanger the 701, second sand filtering device the 702, second nanofiltration device 703 and MVR vaporizer 704.
Concrete technological process is:
nullThe waste water produced in PMIDA production process is stored in wastewater collection pond 101，And carry out the process that homogenizes，The waste water discharged through wastewater collection pond 101 enter the first sand filtering device 201 carry out sand filtration process and through sand filtration process after waste water meet enter the first ultrafiltration apparatus 202 influent quality requirement，The permeate of the first sand filtering device 201 is delivered to the first ultrafiltration apparatus 202 and carries out hyperfiltration treatment and the waste water after hyperfiltration treatment meets the influent quality requirement entering the first nanofiltration device 301，The permeate of the first ultrafiltration apparatus 202 enters the first nanofiltration device 301 and carries out a point salt treatment，The concentrated solution of the first nanofiltration device 301 is delivered to electrodialysis plant 401 and carries out desalting processing，It is delivered to CWO reaction tower 501 after the permeate of the first nanofiltration device 301 and the concentrated solution mixing of electrodialysis plant 401 and carries out oxidation processes of degrading，The desalination solution of electrodialysis plant 401 is sold as PMIDA water preparation，The mother solution of CWO reaction tower 501 is delivered to crystallizer 601 and carries out decrease temperature crystalline process，Disodium hydrogen phosphate solid isolated by the solidliquid mixture machine 602 by centrifugation discharged in crystallizer 601，Supernatant in centrifuge 602 is delivered to heat exchanger 701 and carries out the heating that heats up，After the heating that heats up, it is delivered to the second sand filtering device 702 carries out sand filtration process，And the waste water after sand filtration processes meets the influent quality requirement of the second nanofiltration device 703，The permeate of the second sand filtering device 702 enters the second nanofiltration device 703 and carries out nanofiltration point salt treatment，The concentrated solution of the second nanofiltration device 703 is delivered to crystallizer 601 and carries out recrystallization process，The permeate of the second nanofiltration device 703 enters MVR vaporizer 704 and is evaporated crystallization and obtains solid sodium chloride.
Above-mentioned detailed description of the invention is used for illustrating this utility model; it is only preferred embodiment of the present utility model; rather than this utility model is limited; in spirit of the present utility model and scope of the claims; the any modification, equivalent substitution and improvement etc. making this utility model, both fall within protection domain of the present utility model.
Claims (9)
1. the processing system of a N-(phosphonomethyl) iminodiacetic acid wastewater recycling, the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling is for carrying out recycling to the waste water produced in PMIDA production process, it is characterized in that, the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling includes:
-wastewater collection pond, described wastewater collection pond is for storing the waste water produced in PMIDA production process, and carries out the process that homogenizes；
-filtration system, described filtration system is for carrying out filtration treatment to the N-(phosphonomethyl) iminodiacetic acid wastewater discharged in wastewater collection pond, and the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration treatment meets the influent quality requirement of film separation system；
-film separation system, described film separation system is for carrying out membrane separation to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment；
-desalting processing system, described desalting processing system carries out desalting processing for the concentrated solution being discharged film separation system；
-CWO response system, described CWO response system carries out degraded oxidation for the permeate being discharged film separation system；And
-crystal system, described crystal system carries out crystallization treatment for the mother solution being discharged CWO response system.
2. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterized in that, described filtration system includes sand filtering device and ultrafiltration apparatus, described sand filtering device is for removing the large particulate matter in N-(phosphonomethyl) iminodiacetic acid wastewater and reaching to enter the influent quality requirement of ultrafiltration apparatus, and the permeate of described ultrafiltration apparatus enters film separation system and carries out membrane separation.
3. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterized in that, described film separation system includes nanofiltration device, described nanofiltration device is for carrying out nanofiltration point salt treatment to the N-(phosphonomethyl) iminodiacetic acid wastewater after filtration system filtration treatment, the concentrated solution of described nanofiltration device is delivered to desalting processing system and carries out desalting processing, and the permeate of described nanofiltration device is delivered to CWO oxidation system and carries out degraded oxidation.
4., according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterised in that described desalting processing system includes electrodialysis plant, described electrodialysis plant carries out desalting processing for the concentrated solution being discharged film separation system.
5. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 4, it is characterized in that, the desalination solution that the diluting compartment of described electrodialysis plant is discharged is as PMIDA water preparation, and the concentrated solution that the enriched chamber of described electrodialysis plant is discharged is delivered to CWO oxidation system and carries out degraded oxidation.
6. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterized in that, CWO response system includes CWO reaction tower, adds copper salt catalyst, and be passed through compressed air in tower in described CWO reaction tower.
7. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterized in that, described crystal system includes crystallizer and centrifuge, described crystallizer is for carrying out decrease temperature crystalline to through the degraded N-(phosphonomethyl) iminodiacetic acid wastewater of oxidation of CWO response system, and described centrifuge is for reclaiming in crystallized tank the disodium hydrogen phosphate solid in discharge solidliquid mixture.
8. according to the processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in claim 1, it is characterized in that, the processing system of described N-(phosphonomethyl) iminodiacetic acid wastewater recycling also includes after-treatment system, and described after-treatment system carries out post processing for the crystalline mother solution being discharged crystal system.
The processing system of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater recycling described in the most according to Claim 8, it is characterized in that, described after-treatment system includes heat exchanger, second sand filtering device, second nanofiltration device and MVR vaporizer, described heat exchanger carries out, for the crystalline mother solution being discharged crystal system, the heating that heats up, crystalline mother solution after the heating that heats up delivers to the second sand filtering device and for the solid particle removing in crystalline mother solution, the permeate of the second sand filtering device is delivered to the second nanofiltration device and carries out nanofiltration point salt treatment, the defeated crystal system that is delivered to of the concentrated solution of described second nanofiltration device carries out recrystallization, the permeate of described second nanofiltration device is delivered to MVR vaporizer and is evaporated crystallization.
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| CN201620457010.2U CN205773845U (en) | 2016-05-18 | 2016-05-18 | A kind of processing system of N-(phosphonomethyl) iminodiacetic acid wastewater recycling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746135A (en) * | 2017-03-09 | 2017-05-31 | 江苏省环境科学研究院 | The processing system and technique of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater |
| CN107162278A (en) * | 2017-07-13 | 2017-09-15 | 成都美富特膜科技有限公司 | A kind of recycling PMIDA produces the handling process of waste water |
| CN107326197A (en) * | 2017-08-17 | 2017-11-07 | 长兴上拓环境科技有限公司 | A kind of germanic strip liquor alkali recovery process of zinc abstraction |
-
2016
- 2016-05-18 CN CN201620457010.2U patent/CN205773845U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746135A (en) * | 2017-03-09 | 2017-05-31 | 江苏省环境科学研究院 | The processing system and technique of a kind of N-(phosphonomethyl) iminodiacetic acid wastewater |
| CN107162278A (en) * | 2017-07-13 | 2017-09-15 | 成都美富特膜科技有限公司 | A kind of recycling PMIDA produces the handling process of waste water |
| CN107326197A (en) * | 2017-08-17 | 2017-11-07 | 长兴上拓环境科技有限公司 | A kind of germanic strip liquor alkali recovery process of zinc abstraction |
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Address after: 311121 Room 201, building 2, No. 11, Haishu Road, Haichuang Park, future science and Technology City, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Address before: 311121 Room 201, building 2, No. 11, Haishu Road, Haichuang Park, future science and Technology City, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. |
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