CN109626613A - A kind of efficient method for removing total phosphorus in organic phosphine waste water - Google Patents
A kind of efficient method for removing total phosphorus in organic phosphine waste water Download PDFInfo
- Publication number
- CN109626613A CN109626613A CN201811582934.5A CN201811582934A CN109626613A CN 109626613 A CN109626613 A CN 109626613A CN 201811582934 A CN201811582934 A CN 201811582934A CN 109626613 A CN109626613 A CN 109626613A
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- CN
- China
- Prior art keywords
- waste water
- organic phosphine
- nanofiltration membrane
- total phosphorus
- phosphine waste
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- 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.)
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Classifications
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
Abstract
The invention discloses a kind of methods of total phosphorus in efficiently removal organic phosphine waste water, belong to agricultural chemicals waste water processing environment protection field, including: pH and temperature are controlled to fixed value using alkali medicine system and plate heat exchange exchange system, suspended contamination that may be present in cartridge filter filtering removal water, separation concentration is carried out in high stalling characteristic film concentration systems again after removal of impurities, the total phosphorus in organic phosphine waste water can be removed, using treatment method, total phosphorus in organic phosphine waste water can effectively be removed, part total nitrogen and salinity, reduce water pollutant concentration, reduce biochemical treatment load, can making treated, total tp removal rate reaches 98% or more, and process flow is simple, it is easy to industrialize, what is promoted and applied has a extensive future.
Description
Technical field
The invention belongs to a kind of pesticides waste water treatment process, belong to field of environment protection more particularly to a kind of efficiently organic
The minimizing technology of total phosphorus in phosphine waste water.
Background technique
Glyphosate is the chronic wide spectrum steriland herbicide of inner sucting conduction type, enolpyruvyl shikimene in major inhibitor body
Phosphate synthase makes the synthesis of protein by dry to inhibit shikimene to the conversion of phenylalanine, cruel propylhomoserin and tryptophan
Disturbing leads to Plant death, currently, glyphosate mother solution is because of the features such as its concentration is high, salinity is high, difficult to degrade, it is always puzzlement glyphosate
The difficult problem of environmental protection of industry many years, though domestic have various leading treatment process terminal water outlets still to contain higher total phosphorus, ammonia
The pollutants such as nitrogen and total nitrogen, big to biochemical treatment system burden requirement, biological degradability is poor, belongs to high concentration, class pesticide difficult to degrade
Waste water.
Summary of the invention
The present invention provides a kind of efficient total phosphorus minimizing technology on the basis of being directed to existing glyphosate mother solution treatment process, can do
It can also be used as the technique that front end requires water inlet total phosphorus for biochemical system water inlet pretreatment to pre-process, make such organic phosphine waste water
Middle total phosphorus, part total nitrogen and salinity are effectively removed, and water pollutant concentration is reduced, and reduce biochemical and other group technologies
Load is handled, treatment effeciency is improved.
The technical solution that the present invention solves the offer of its technical problem is: a kind of efficiently to remove total phosphorus in organic phosphine waste water
Method, including: PH and temperature are controlled to fixed value, cartridge filter mistake using alkali medicine system and plate heat exchange exchange system
It filters off except being made a return journey after suspended contamination that may be present in water, removal of impurities using preferably high seperation film concentration systems separation concentration
Except total phosphorus, the specific steps are as follows:
(1) PH and temperature are controlled to fixed value using alkali medicine system and plate heat exchange exchange system；
(2) suspended contamination that may be present in cartridge filter filtering removal water；
(3) separation concentration dephosphorization is carried out using special materials film concentration systems: for such water quality, preferably using aperture
The nanofiltration membrane of the high stalling characteristic of 1-2nm, the wastewater influent intake after removal of impurities are 17.5L/m2/h-22.5L/m2/ h, influent pressure
Power 1.3-1.8MP, overall permeant flux are 14-18L/m2/ h (the m2For in nanofiltration membrane area and membranous system mode of operation, into
Water is condensed and separated into produce water and concentrated water), and nanofiltration membrane quantity needed for system is calculated on this basis, and preferably will meter
It calculates three sections of gained nanofiltration membrane quantity point to be arranged, i.e., first segment concentrated water enters second segment and continued with, second segment concentrated water
It is continued with into third section, for third section concentrated water as final concentrated water, each section of production water, which collects, produces water, three Duan Na as final
Filter membrane film quantity in 6-8:3-5:1-2 ratio carry out arranged distribution, with this by sewage to the pollution of film be rationally dispersed in each section it
Between, pressure charging system is set between second and third section, and adherence pressure to 2.0-2.5MP guarantees third section producing water ratio, and UF membrane is most
Whole concentrated water is back to the treatment process reprocessing of front end, and the final water that produces is that qualified water enters biochemical system or downstream materializing strategy
System.
Preferably: pH is 9-10 in the step (1)；25-35 DEG C of temperature；
Preferably: security personnel's Filtration Filtration precision is 5um in the step (2).
Compared with prior art, the beneficial effect of this method is:
(1) optimize operating condition: organism P wastewater contain it is organic phosphorus mixed with Phos, pH9-10 alkaline condition
Under, inorganic phosphate is easy with the presence of minus two, trivalent form to be intercepted by nanofiltration；It is organic phosphorus since molecular weight is larger, be easy quilt
1-2nm nanofiltration intercepts, and high COD water is not easy to form equipment dirty block up under alkaline condition；
(2) membrane system design optimized: high stalling characteristic film concentration systems are the nanofiltration of the high stalling characteristic of aperture 1-2nm
Film, the wastewater influent intake after removal of impurities are 20L/m2/ h, intake pressure 1.5MP, overall permeant flux are 16L/m2/ h is (described
m2For in nanofiltration membrane area and membranous system mode of operation, water inlet is condensed and separated into produce water and concentrated water), and count on this basis
Nanofiltration membrane quantity needed for calculation system, and will preferably calculate three sections of gained nanofiltration membrane quantity point and arrange, i.e., first segment is dense
Water enters second segment and is continued with, and second segment concentrated water enters third section and continued with, and third section concentrated water is as final
Concentrated water, each section of production water, which collects, produces water as final, it is preferred that three sections of nanofiltration membrane film quantity be preferably 7:5:2 ratio into
Row arranged distribution is rationally dispersed sewage to the pollution of film with this, and pressure charging system, adherence pressure are arranged between second and third section
Guarantee third section producing water ratio to 2.5MP, the final concentrated water of UF membrane is back to the treatment process reprocessing of front end, and producing water is qualification
Water enters biochemical system or downstream materializing strategy system., under this condition, system operation is more stable, the selection of film quantity
More rationally economical, sewage is rationally dispersed between each section the pollution of film, and overall producing water ratio can be stablized and guarantee 80% or more.
(3) present invention can efficiently remove the total phosphorus in organic phosphine waste water, and removal rate can reach 98% or more, Er Qieneng
Conductance in water is effectively reduced, improves pretreating effect for subsequent biochemical system and to the technique that water inlet total phosphorus and salinity require,
Its load is substantially reduced, the stability of operation is improved.
(4) this method does not generate the secondary pollutions such as solid waste, construction investment is low, answers compared with other chemistry and biological phosphate-eliminating
It is wide with prospect.
Detailed description of the invention
Fig. 1 is process flow diagram of the present invention.
Specific embodiment
The present invention is further illustrated below with reference to embodiment, but the scope of protection of present invention is not limited to implement
The range of example statement.
Embodiment 1:
Hubei Xingfa Group glyphosate mother solution MVR evaporation condensed water, total phosphorus 1200mg/L are exchanged heat using plate and exchange control
Temperature, cartridge filter filtering, nanofiltration membrane separation concentration are handled, the specific process steps are as follows:
Step 1): plate heat exchange exchange cooling and pH adjustment: raw water temperature controls temperature at 40 DEG C or so, using plate heat exchanger
For degree at 25~35 DEG C, NaOH adjusts water pH 9~10；
Step 2): cartridge filter filtering: water was carried out using 5 μm of filter bag type cartridge filters in membranous system front end
Filter removes suspended contamination present in organic phosphine waste water.
Step 3): nanofiltration membrane separation concentration: high stalling characteristic film concentration systems include three sections of nanofiltration membrane treatment sections, first segment
Nanofiltration membrane treatment section, second segment nanofiltration membrane treatment section, third section nanofiltration membrane treatment section nanofiltration membrane quantity ratio be 7:5:2, wherein
The aperture of nanofiltration membrane is 2nm.The intake that sewage after removal of impurities enters first segment nanofiltration membrane treatment section is 20L/m2/ h, third section
The permeant flux of nanofiltration membrane treatment section is 16L/m2/ h, sewage enter the pressure 1.5MP of first segment nanofiltration membrane treatment section, into
Two, the boost in pressure of three sections of nanofiltration membrane treatment sections is to 2.5MP.It is filtered using nanofiltration system, the rate of recovery >=85%.
Operation result is as shown in table 1.
Water quality indicator comparison before and after 1 organic phosphine wastewater treatment of table
Claims (6)
1. a kind of method of total phosphorus in efficiently removal organic phosphine waste water, it is characterised in that: handed over using alkali medicine system and plate heat exchange
PH and temperature in system control organic phosphine waste water is changed to filter using filter and hang present in removal organic phosphine waste water to fixed value
Floating object impurity carries out separation concentration in high stalling characteristic film concentration systems again after removal of impurities, can remove total in organic phosphine waste water
Phosphorus.
2. the method for total phosphorus in efficient removal organic phosphine waste water according to claim 1, which is characterized in that the plate changes
Heat-exchange system controls the temperature of organic phosphine waste water at 25 ~ 35 DEG C, and adjusts the pH of organic phosphine waste water 9 ~ 10 using NaOH.
3. the method for total phosphorus in efficient removal organic phosphine waste water according to claim 1, which is characterized in that the filtering
Device aperture is less than 5 μm.
4. the method for total phosphorus in efficient removal organic phosphine waste water according to claim 1, which is characterized in that the high score
It include three sections of nanofiltration membrane treatment sections, first segment nanofiltration membrane treatment section, second segment nanofiltration membrane treatment section, the from characteristic film concentration systems
The nanofiltration membrane quantity ratio of three sections of nanofiltration membrane treatment sections is 6-8:3-5:1-2, wherein the aperture of nanofiltration membrane is 1-2nm.
5. the method for total phosphorus in efficient removal organic phosphine waste water according to claim 4, which is characterized in that the dirt after removal of impurities
The intake that water enters first segment nanofiltration membrane treatment section is 17.5L/m2/h-22.5L/m2/ h, the production of third section nanofiltration membrane treatment section
Water flux is 14-18L/m2/h。
6. the method for total phosphorus in efficient removal organic phosphine waste water according to claim 4, which is characterized in that sewage enters the
The pressure 1.3-1.8MP of one section of nanofiltration membrane treatment section, into the boost in pressure of second and third section of nanofiltration membrane treatment section to 2.0-
2.5MP。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582934.5A CN109626613A (en) | 2018-12-24 | 2018-12-24 | A kind of efficient method for removing total phosphorus in organic phosphine waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582934.5A CN109626613A (en) | 2018-12-24 | 2018-12-24 | A kind of efficient method for removing total phosphorus in organic phosphine waste water |
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| CN109626613A true CN109626613A (en) | 2019-04-16 |
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| CN201811582934.5A Pending CN109626613A (en) | 2018-12-24 | 2018-12-24 | A kind of efficient method for removing total phosphorus in organic phosphine waste water |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490252A (en) * | 2002-10-16 | 2004-04-21 | 天津市环境保护科学研究所 | Industrial waste liquid treatment by nano filtering membrane and material recovery art design |
| CN1843587A (en) * | 2006-03-31 | 2006-10-11 | 杭州天创净水设备有限公司 | Process for concentrating pesticide mother liquor by film method |
| CN101348299A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Glyphosate synthesized mother liquor processing method |
| US20090274842A1 (en) * | 2008-04-30 | 2009-11-05 | Fujifilm Corporation | Organic-inorganic hybrid free standing film, and its production method |
| CN101967161A (en) * | 2010-04-22 | 2011-02-09 | 浙江新安化工集团股份有限公司 | Comprehensive treatment method for glyphosate mother liquid |
| 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 |
| CN207748936U (en) * | 2017-11-29 | 2018-08-21 | 宁夏绿色之星环保工程有限公司 | A kind of four-part form nanofiltration film condensing device |
-
2018
- 2018-12-24 CN CN201811582934.5A patent/CN109626613A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490252A (en) * | 2002-10-16 | 2004-04-21 | 天津市环境保护科学研究所 | Industrial waste liquid treatment by nano filtering membrane and material recovery art design |
| CN1843587A (en) * | 2006-03-31 | 2006-10-11 | 杭州天创净水设备有限公司 | Process for concentrating pesticide mother liquor by film method |
| US20090274842A1 (en) * | 2008-04-30 | 2009-11-05 | Fujifilm Corporation | Organic-inorganic hybrid free standing film, and its production method |
| CN101348299A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Glyphosate synthesized mother liquor processing method |
| CN101967161A (en) * | 2010-04-22 | 2011-02-09 | 浙江新安化工集团股份有限公司 | Comprehensive treatment method for glyphosate mother liquid |
| 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 |
| CN207748936U (en) * | 2017-11-29 | 2018-08-21 | 宁夏绿色之星环保工程有限公司 | A kind of four-part form nanofiltration film condensing device |
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| 张洪流: "《化工原理-传质与分离技术分册》", 30 September 2009, 国防工业出版社 * |
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Application publication date: 20190416 |
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