CN106115974A - A kind of glufosinate-ammonium produces the preprocess method of waste water - Google Patents
A kind of glufosinate-ammonium produces the preprocess method of waste water Download PDFInfo
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- CN106115974A CN106115974A CN201610595825.1A CN201610595825A CN106115974A CN 106115974 A CN106115974 A CN 106115974A CN 201610595825 A CN201610595825 A CN 201610595825A CN 106115974 A CN106115974 A CN 106115974A
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- Prior art keywords
- glufosinate
- waste water
- ammonium
- preprocess method
- chelating agent
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved 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
- C02F2101/306—Pesticides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Invention provides a kind of glufosinate-ammonium to produce the preprocess method of waste water.Described preprocess method is using alkaline matter as chelating agent, is 4～10 at pH value, in the environment of temperature is 80～100 DEG C, utilizes described chelating agent to produce described glufosinate-ammonium after waste water carries out complex reaction, obtain aqueous phase and solid phase after centrifugal filtration.The present invention is little by selection toxicity, the chelating agent of low cost, in conjunction with high temperature complex reaction, it is thus achieved that a kind of flow process is short, efficiency is high, the preprocess method of the glufosinate-ammonium of good stability production waste water, enormously simplify subsequent treatment.
Description
Technical field
The present invention relates to agricultural chemicals waste water process field, produce the preprocess method of waste water particularly to a kind of glufosinate-ammonium.
Background technology
Glufosinate-ammonium, has another name called grass fourth phosphine, is the organophosphorus herbicide of a kind of non-selective foliage-spray, have efficiently, low toxicity,
The feature of wide spectrum.Within 1979, first synthesized exploitation by Germany Hoechst (Hoechst) chemical company and (belong to Bayer afterwards public
Department).Glufosinate-ammonium has systemic action, can suppress the synthesis of amide glutaminate synzyme, and in causing plant, nitrogen metabolism is disorderly, ammonia
Excess is accumulative, the disintegration of chloroplast, so that photosynthesis is suppressed, ultimately results in Plant death.Glufosinate-ammonium has the strongest removing
Grass activity, prevents and kill off effect to the plant of section more than 40, including unifacial leaf and dicotyledonous, annual and perennial, draft and shrub
Deng plant.Little to Crop securify, activity height, broad weed-killing spectrum, poisoning, it is the current preferable herbicide of transgene crop, answers
Boundless by prospect.
The production process of glufosinate-ammonium is as follows: methylisothiouronium methylphosphite diethylester generates methylphosphine with ethanol, acrylic aldehyde additive reaction
Acetal, product is hydrolyzed-Strecker synthesis, further obtains glufosinate-ammonium phosphate, hydrochloride intermediate after acidifying
Carry out condensation reaction with methanol, oxirane, obtain glufosinate-ammonium by ammonia ammonification.Production process produces containing methanol, second
Alcohol, oxolane, magnesium chloride, sodium chloride, phosphate ester, the high concentrated organic wastewater of cyanide.
Chinese patent application domestic patent CN 104761093 A describes a kind of glufosinate-ammonium processing method containing magnesium waste water
And processing system, the method utilizes PROCESS FOR TREATMENT glufosinate-ammonium waste water in magnesium such as reactive distillation, chemical precipitation and heating concentration, but its
The shortcoming that operation is complicated, processing cost is higher can only be had, it is impossible to meet the requirement of industrialized production for containing magnesium waste water.
It would therefore be desirable to a kind of new glufosinate-ammonium produces the processing method of waste water, overcome the deficiency of existing processing method,
To meet the requirement of industrialized production.
Summary of the invention
It is an object of the invention to provide a kind of glufosinate-ammonium and produce the preprocess method of waste water, can effectively remove glufosinate-ammonium
Produce the toxic pollutant in useless book and COD, contribute to described glufosinate-ammonium and produce the subsequent treatment of waste water.
To achieve these goals, present invention firstly provides a kind of glufosinate-ammonium and produce the preprocess method of waste water.Described pre-
Processing method is using alkaline matter as chelating agent, is 4～10 at pH value, in the environment of temperature is 80～100 DEG C, utilizes described
After chelating agent carries out complex reaction to described glufosinate-ammonium production waste water, after centrifugal filtration, obtain aqueous phase and solid phase.
In an embodiment of the present invention, described chelating agent one in sodium hydroxide, calcium hydroxide or calcium carbonate or
Several.
In an embodiment of the present invention, described sodium hydroxide, calcium hydroxide, the mol ratio of calcium carbonate meet equation MSodium hydroxide:
MCalcium hydroxide:MCalcium carbonate=(0～2): 1:(0～1).It is to say, work as MSodium hydroxideAnd MCalcium carbonateWhen all selecting 0, the most described chelating agent is hydrogen
Calcium oxide, and as described MSodium hydroxideAnd MCalcium carbonateIn a kind of when selecting 0, then representing described chelating agent is calcium hydroxide and hydroxide
The mixing of one of sodium or calcium carbonate.
In an embodiment of the present invention, the addition of described chelating agent be described glufosinate-ammonium produce wastewater quality 0.5～
3%.
In an embodiment of the present invention, the centrifugation rate scope of described centrifugal filtration is between 600～1500r/min.
In an embodiment of the present invention, the response time of described complex reaction is 2～4 hours.
In an embodiment of the present invention, the response time of described centrifugal filtration is 10～30 minutes.
Those skilled in the art could be aware that, the present invention is the preprocess method that glufosinate-ammonium produces waste water, therefore,
In one embodiment of the invention, the described aqueous phase obtained after centrifugal filtration can enter subsequent biochemical and process, and obtains after centrifugal filtration
Described solid phase can enter follow-up Solid state fermentation.Follow-up biochemical treatment or Solid state fermentation are known in the art technique, therefore
Repeat no more herein.
In a preferred embodiment of the present invention, it is provided that a kind of glufosinate-ammonium produces the preprocess method of waste water.Described pretreatment
Method comprises the following steps:
Step S10. complex reaction: be 4～10 at pH value, in the environment of temperature is 80～100 DEG C, use chelating agent to institute
Stating glufosinate-ammonium production waste water and carry out complex reaction, the response time is 2～4 hours；Wherein, described chelating agent selected from sodium hydroxide,
One or more in calcium hydroxide or calcium carbonate, and described sodium hydroxide, calcium hydroxide, calcium carbonate mol ratio meet etc.
Formula MSodium hydroxide:MCalcium hydroxide:MCalcium carbonate=(0～2): 1:(0～1)；The addition of described chelating agent is that described glufosinate-ammonium produces waste water matter
The 0.5～3% of amount；And,
The centrifugal filtration of step S20.: mixed liquor step S10 obtained with centrifugation rate 600～1500r/min carry out from
The heart separates 10～30 minutes, obtains aqueous phase and solid phase after filtration.
In the present invention, low cost chelating agent and high temperature complex reaction are utilized so that glufosinate-ammonium produces poisonous dirt in waste water
The clearance of dye thing up to more than 99%, COD removal rate is up to more than 80%.Additionally, in the present invention, by adding chelating agent
Glufosinate-ammonium can also be improved and produce the biodegradability of waste water so that the described grass ammonium after preprocess method of the present invention processes
Phosphine produces waste water and can be processed by routine biochemistry processing method, it is ensured that the stably reaching standard discharge of glufosinate-ammonium waste water；And through this
Inventing the solid phase obtained after described preprocess method processes can be as general industrial solid waste, it is easy to process.
Therefore, the present invention is little by selection toxicity, the chelating agent of low cost, in conjunction with high temperature complex reaction, it is thus achieved that a kind of
Flow process is short, efficiency is high, the preprocess method of the glufosinate-ammonium of good stability production waste water, enormously simplify subsequent treatment.
Detailed description of the invention
Hereinafter, in conjunction with detailed description of the invention, the technology of the present invention is described in detail.It is appreciated that the various following tool
Body embodiment is only used for helping skilled in the art to understand the present invention, rather than limitation of the present invention.
Embodiment 1
In the present embodiment, it is provided that a kind of glufosinate-ammonium produces pretreatment method for wastewater.Pretreatment object in the present embodiment
The glufosinate-ammonium discharged for taking from domestic glufosinate-ammonium factory produces waste water, and this glufosinate-ammonium produces the water quality situation of waste water and is:
COD35876mg/L, ammonia nitrogen 250mg/L, total phosphorus 28.3mg/L, total cyanogen 564mg/L, pH value 1～2.
Above-mentioned for 1000mL production waste water is entered in stirred tank, add 10.0g chelating agent.In the present embodiment, described network
Mixture is calcium hydroxide and calcium carbonate, and mol ratio is 2:1.First arranging mixing speed is 300r/min, makes chelating agent and described life
Product waste water mixes, and now the pH of waste water is 4.Subsequently, in reactor, it is passed through vapours, makes wastewater temperature reach 90 DEG C, at this
At a temperature of react 2 hours.Reaction water outlet centrifugal filtration, centrifugation rate 600r/min, centrifugation time is 20min, centrifugal generation
Aqueous phase enters subsequent biochemical and processes, and centrifugal gained solid phase makees Solid state fermentation.
Pretreating effect asks for an interview table 1.
Table 1. glufosinate-ammonium produces the pretreating effect of waste water
Can be illustrated by table 1 data, preprocess method of the present invention can effectively remove the toxic pollutant of waste water
And COD, contribute to the subsequent treatment of waste water.
Embodiment 2
In the present embodiment, it is provided that a kind of glufosinate-ammonium produces pretreatment method for wastewater.Pretreatment object in the present embodiment
The glufosinate-ammonium discharged for taking from domestic glufosinate-ammonium factory produces waste water, and this glufosinate-ammonium produces the water quality situation of waste water and is:
COD35876mg/L, ammonia nitrogen 250mg/L, total phosphorus 28.3mg/L, total cyanogen 564mg/L, pH value 1～2.
Above-mentioned for 1000mL production waste water is entered in stirred tank, add 15.0g chelating agent.In the present embodiment, described network
Mixture is sodium hydroxide and calcium hydroxide, and mol ratio is 2:1.First arranging mixing speed is 300r/min, makes chelating agent with described
Production waste water mixes, and now the pH of waste water is 5.Subsequently, in reactor, it is passed through vapours, makes wastewater temperature reach 80 DEG C,
React 4 hours at a temperature of this.Reaction water outlet centrifugal filtration, centrifugation rate 800r/min, centrifugation time is 15min, centrifugal generation
Aqueous phase enter subsequent biochemical and process, centrifugal gained solid phase makees Solid state fermentation.
Pretreating effect asks for an interview table 2.
Table 2. glufosinate-ammonium produces the pretreating effect of waste water
Can be illustrated by table 2 data, preprocess method of the present invention can effectively remove the toxic pollutant of waste water
And COD, contribute to the subsequent treatment of waste water.
Embodiment 3
In the present embodiment, it is provided that a kind of glufosinate-ammonium produces pretreatment method for wastewater.Pretreatment object in the present embodiment
The glufosinate-ammonium discharged for taking from domestic glufosinate-ammonium factory produces waste water, and this glufosinate-ammonium produces the water quality situation of waste water and is:
COD35876mg/L, ammonia nitrogen 250mg/L, total phosphorus 28.3mg/L, total cyanogen 564mg/L, pH value 1～2.
Above-mentioned for 1000mL production waste water is entered in stirred tank, add 20.0g chelating agent.In the present embodiment, described network
Mixture is sodium hydroxide, calcium hydroxide and calcium carbonate, and mol ratio is 1:1:2.First arranging mixing speed is 300r/min, makes complexation
Agent mixes with described production waste water, and now the pH of waste water is 6.Subsequently, in reactor, it is passed through vapours, makes wastewater temperature reach
95 DEG C, reaction 3 hours at this temperature.Reaction water outlet centrifugal filtration, centrifugation rate 600r/min, centrifugation time is 20min, from
The aqueous phase that the heart produces enters subsequent biochemical and processes, and centrifugal gained solid phase makees Solid state fermentation.
Pretreating effect asks for an interview table 3.
Table 3. glufosinate-ammonium produces the pretreating effect of waste water
Can be illustrated by table 3 data, preprocess method of the present invention can effectively remove the toxic pollutant of waste water
And COD, contribute to the subsequent treatment of waste water.
Embodiment 4
In the present embodiment, it is provided that a kind of glufosinate-ammonium produces pretreatment method for wastewater.Pretreatment object in the present embodiment
The glufosinate-ammonium discharged for taking from domestic glufosinate-ammonium factory produces waste water, and this glufosinate-ammonium produces the water quality situation of waste water and is:
COD35876mg/L, ammonia nitrogen 250mg/L, total phosphorus 28.3mg/L, total cyanogen 564mg/L, pH value 1～2.
Above-mentioned for 1000mL production waste water is entered in stirred tank, add 25.0g chelating agent.In the present embodiment, described network
Mixture is calcium hydroxide.First arranging mixing speed is 300r/min, make chelating agent mix with described production waste water, now waste water
PH is 8.Subsequently, in reactor, it is passed through vapours, makes wastewater temperature reach 100 DEG C, at this temperature reaction 2 hours.Reaction
Water outlet centrifugal filtration, centrifugation rate 600r/min, centrifugation time is 20min, and the centrifugal aqueous phase produced enters subsequent biochemical and processes,
Centrifugal gained solid phase makees Solid state fermentation.
Pretreating effect asks for an interview table 4.
Table 4. glufosinate-ammonium produces the pretreating effect of waste water
Can be illustrated by table 4 data, preprocess method of the present invention can effectively remove the toxic pollutant of waste water
And COD, contribute to the subsequent treatment of waste water.
In the present invention, low cost chelating agent and high temperature complex reaction are utilized so that glufosinate-ammonium produces poisonous dirt in waste water
The clearance of dye thing up to more than 99%, COD removal rate is up to more than 80%.Additionally, in the present invention, by adding chelating agent
Glufosinate-ammonium can also be improved and produce the biodegradability of waste water so that the described grass ammonium after preprocess method of the present invention processes
Phosphine produces waste water and can be processed by routine biochemistry processing method, it is ensured that the stably reaching standard discharge of glufosinate-ammonium waste water；And through this
Inventing the solid phase obtained after described preprocess method processes can be as general industrial solid waste, it is easy to process.
Therefore, the present invention is little by selection toxicity, the chelating agent of low cost, in conjunction with high temperature complex reaction, it is thus achieved that a kind of
Flow process is short, efficiency is high, the preprocess method of the glufosinate-ammonium of good stability production waste water, enormously simplify subsequent treatment.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example implementing the present invention.
It must be noted that, it has been disclosed that embodiment be not limiting as the scope of the present invention.On the contrary, be contained in the spirit of claims
And the amendment of scope and equalization arrange and are all included in the scope of the present invention.
Claims (8)
1. the preprocess method of a glufosinate-ammonium production waste water, it is characterised in that described preprocess method is to make with alkaline matter
For chelating agent, it is 4～10 at pH value, in the environment of temperature is 80～100 DEG C, utilizes described chelating agent that described glufosinate-ammonium is produced
After waste water carries out complex reaction, after centrifugal filtration, obtain aqueous phase and solid phase.
2. preprocess method as claimed in claim 1, it is characterised in that described chelating agent is selected from sodium hydroxide, calcium hydroxide
Or one or more in calcium carbonate.
3. preprocess method as claimed in claim 2, it is characterised in that described sodium hydroxide, calcium hydroxide, the rubbing of calcium carbonate
You meet equation M by ratioSodium hydroxide:MCalcium hydroxide:MCalcium carbonate=(0～2): 1:(0～1).
4. preprocess method as claimed in claim 1, it is characterised in that the addition of described chelating agent is that described glufosinate-ammonium is raw
Produce the 0.5～3% of wastewater quality.
5. preprocess method as claimed in claim 1, it is characterised in that the centrifugation rate scope of described centrifugal filtration is 600
～between 1500r/min.
6. preprocess method as claimed in claim 1, it is characterised in that the response time of described complex reaction is 2～4 little
Time.
7. preprocess method as claimed in claim 1, it is characterised in that the response time of described centrifugal filtration is 10～30 points
Clock.
8. preprocess method as claimed in claim 1, it is characterised in that the described aqueous phase obtained after centrifugal filtration enters follow-up
Biochemical treatment, the described solid phase obtained after centrifugal filtration enters follow-up Solid state fermentation.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173518B (en) * | 2011-03-16 | 2012-07-25 | 广西壮族自治区化工研究院 | Dephosphorization method for glyphosate wastewater |
| WO2013077780A1 (en) * | 2011-11-22 | 2013-05-30 | Hans Giertz | Method and apparatus for purifying aqueous solutions by shielding or subjecting chemical substances to low frequency electromagnetic radiation |
| CN105016515A (en) * | 2015-06-18 | 2015-11-04 | 浙江新安化工集团股份有限公司 | Treatment method of phosphorus-containing waste produced during glufosinate ammonium production process |
-
2016
- 2016-07-26 CN CN201610595825.1A patent/CN106115974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173518B (en) * | 2011-03-16 | 2012-07-25 | 广西壮族自治区化工研究院 | Dephosphorization method for glyphosate wastewater |
| WO2013077780A1 (en) * | 2011-11-22 | 2013-05-30 | Hans Giertz | Method and apparatus for purifying aqueous solutions by shielding or subjecting chemical substances to low frequency electromagnetic radiation |
| CN105016515A (en) * | 2015-06-18 | 2015-11-04 | 浙江新安化工集团股份有限公司 | Treatment method of phosphorus-containing waste produced during glufosinate ammonium production process |
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Application publication date: 20161116 |