CN110127919A - A kind of agricultural chemicals waste water recycling treatment process - Google Patents
A kind of agricultural chemicals waste water recycling treatment process Download PDFInfo
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- CN110127919A CN110127919A CN201910258047.0A CN201910258047A CN110127919A CN 110127919 A CN110127919 A CN 110127919A CN 201910258047 A CN201910258047 A CN 201910258047A CN 110127919 A CN110127919 A CN 110127919A
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- Prior art keywords
- waste water
- electrocatalytic oxidation
- agricultural chemicals
- treatment process
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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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of agricultural chemicals waste water recycling treatment process, including reduction vaporization, multistage electrocatalytic oxidation and Solid Phase Extraction, it is described to be evaporated under reduced pressure comprising the following specific steps extraction 1, decompression dealcoholysis evaporation, extraction 2 and low temperature concentration, the multistage electrocatalytic oxidation is comprising the following specific steps level-one electrocatalytic oxidation, coagulating sedimentation 1, second level electrocatalytic oxidation and coagulating sedimentation 2, the Solid Phase Extraction is comprising the following specific steps resin adsorption and resin desorption.The advantages of the present invention over the prior art are that: monomethyl amine hydrochloride and by its resource utilization in recycling agricultural chemicals waste water, alleviate wastewater treatment difficulty, so that sewage is had the feasibility of biochemical treatment, avoids generating foul gas in wastewater treatment process, and operating cost is very low.
Description
Technical field
The present invention relates to agricultural chemicals waste water resource treatment technique field, in particular to a kind of agricultural chemicals waste water recycling treatment works
Skill.
Background technique
Containing a large amount of monomethyl amine hydrochlorides and pesticide residue in most agricultural chemicals waste waters (there is biochemical toxicity).The prior art is not
Can by monomethyl amine hydrochloride resource utilization and to pesticide residue without reasonable processing method.For such waste water, traditional handicraft
Monomethyl amine hydrochloride can only be recycled, right foul smelling is appointed in water outlet.Such stench waste water be typically all directly row trench or
It is outdoor, seriously affect environment.General evaporation is only evaporated with level-one evaporator or MVR, and common evaporator steam utilization rate is not
Enough height, evaporation effect is bad, if waste water contains carnallite, salt crust purity is very poor, can only work as fixed-end forces.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the above technological deficiencies, provide a kind of agricultural chemicals waste water recycling treatment work
Skill, can recycle in agricultural chemicals waste water monomethyl amine hydrochloride and by its resource utilization, reduce wastewater treatment difficulty, reduce it is useless
The bio-toxicity of water, has the feasibility of biochemical treatment, effectively avoids generating foul odour in wastewater treatment process, and transports
Cost is relatively low for row.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of agricultural chemicals waste water recycling treatment process,
Including being evaporated under reduced pressure, multistage electrocatalytic oxidation and Solid Phase Extraction, it is described be evaporated under reduced pressure comprising the following specific steps
(1) it extracts 1: taking the waste water water sample of hydrochloride containing monomethyl amine that toluene is added and mixed, stirred.
(2) decompression dealcoholysis evaporation: under negative pressure -0.08Mpa environment, tower bottom higher temperature distillating carbinol is kept, has been distilled
Full side mother liquor TOC.
(3) 2 are extracted: toluene mixing, stirring is added in mother liquor in step 2.
(4) low temperature is concentrated: water extracted in step 3 being carried out low temperature concentration, keeps negative pressure -0.08Mpa in bottle, control
Mother liquor is not steamed salt by bottom temperature, only carries out concentration outflow, surveys distillate TOC.
It is described multistage electrocatalytic oxidation comprising the following specific steps
(1) level-one electrocatalytic oxidation: positive titanium, cathode stainless steel keep electric current 3A, and room temperature is electrolysed 2h, and underfill is living
Property charcoal, survey TOC.
(2) coagulating sedimentation 1: electrolysis is discharged, coagulating sedimentation.
(3) second level electrocatalytic oxidation: positive titanium, cathode stainless steel keep electric current 3A, and room temperature is electrolysed 2h, and underfill is living
Property charcoal, survey TOC.
(4) coagulating sedimentation 2: electrolysis is discharged, coagulating sedimentation.
The Solid Phase Extraction comprising the following specific steps
(1) resin adsorption: by the water being electrolysed out in multistage electrocatalytic oxidation step 4 carry out resin adsorption, resin JD-015,
Flow velocity 1bv/h, adsorption volume 24bv.
(2) resin desorption: 2bv methanol+2bv methanol+3bv washing+3bv washing.
Water sample in the reduction vaporization in step 1 and step 3 is mixed by 1:1 with toluene, and stirring duration is
30min。
Step 2 column bottom temperature is 90 degree in the reduction vaporization.
Bottom temperature is 75 degree in step 4 in the reduction vaporization.
Basic principle of the invention are as follows:
(1) be evaporated under reduced pressure: reduction vaporization is intended to that agricultural chemicals waste water is concentrated, so that monomethyl amine hydrochloride stays in strong brine, and
Organic impurities follows evaporation distillate to distillate, so that monomethyl amine hydrochloride is separated with organic impurities.It is influenced simultaneously by reduction vaporization
The coolant-temperature gage being evaporated is not high, and decompose the pesticide residue contained in distillate will not (can generate evil if pesticide decomposes
Odour).Monomethyl amine hydrochloride can be used for the preparation of monomethyl amine after separating.It has high economic benefit.
(2) multistage electrocatalytic oxidation: catalysis oxidation is carried out by multistage electrocatalytic oxidation and makes pesticide residue directly by oxygen
Change rather than decompose, foul gas will not also be generated by both having eliminated partial organic substances residual.Made by multistage electrocatalytic oxidation
The ratio that useless Organic substance in water is oxidized more thoroughly, can make heterocyclic organic impurities open loop, reduce subsequent processing difficulty.
(3) Solid Phase Extraction: there is having for bio-toxicity by still remaining in the water after electrolysis by solid phase extraction techniques
Machine impurity is enriched with, advanced treating, reaches the water energy after extraction enough into biochemistry requirement.And having with bio-toxicity
Machine impurity is enriched in solid extracting agent include after carry out desorption manipulation make solid extracting agent desorption and regeneration use, operating cost
It is very low.
Beneficial effects of the present invention: 1, monomethyl amine hydrochloride is recycled in agricultural chemicals waste water and by its resource utilization.
2, total COD that waste water is reduced after recycling monomethyl amine hydrochloride, alleviates wastewater treatment difficulty.
3, the bio-toxicity that waste water is reduced after recycling monomethyl amine hydrochloride, has the feasibility of biochemical treatment.
It 4, can be to avoid generating foul gas in wastewater treatment process using the present invention.
5, it can be enriched with organic impurities difficult to degrade, with bio-toxicity in waste water using solid phase extraction techniques, and should
Partial impurities remove waste water, so that waste water has biochemical treatment condition, and operating cost is lower.
Specific embodiment
The present invention is described in further detail below.
Embodiment one
The 500ml waste water quality table of hydrochloride containing monomethyl amine that TOC amount is 159400 is shown in Table one:
Table one
Specific processing step is as follows:
A kind of agricultural chemicals waste water recycling treatment process, including reduction vaporization, multistage electrocatalytic oxidation and Solid Phase Extraction, it is described
Be evaporated under reduced pressure comprising the following specific steps
(1) it extracts 1: taking the 500ml waste water water sample of hydrochloride containing monomethyl amine that 500ml toluene is added and mixed, stirred by 1:1
It is extracted after 30min.
(2) decompression dealcoholysis evaporation: under negative pressure -0.08Mpa environment, 90 degree of distillating carbinols of tower bottom are kept, distillation completely, remains
Remaining 475ml surveys mother liquor TOC.
(3) 2 are extracted: 475ml toluene will be added in mother liquor and mixed by 1:1, stir 30min, extracted.
(4) low temperature is concentrated: water extracted being carried out low temperature concentration, keeps negative pressure -0.08Mpa in bottle, controls bottom 75
Degree, does not steam salt for mother liquor, only carries out concentration outflow, flows out 300ml, surveys distillate TOC.
It is described multistage electrocatalytic oxidation comprising the following specific steps
(1) level-one electrocatalytic oxidation: positive titanium, cathode stainless steel keep electric current 3A, and room temperature is electrolysed 2h, and underfill is living
Property charcoal, survey TOC.
(2) coagulating sedimentation 1: electrolysis is discharged, coagulating sedimentation.
(3) second level electrocatalytic oxidation: positive titanium, cathode stainless steel keep electric current 3A, and room temperature is electrolysed 2h, and underfill is living
Property charcoal, survey TOC.
(4) coagulating sedimentation 2: electrolysis is discharged, coagulating sedimentation.
The Solid Phase Extraction comprising the following specific steps
(1) resin adsorption: by the water being electrolysed out in multistage electrocatalytic oxidation step 4 carry out resin adsorption, resin JD-015,
Flow velocity 1bv/h, adsorption volume 24bv.
(2) resin desorption: 2bv methanol+2bv methanol+3bv washing+3bv washing.
Processing result is shown in Table two:
Table two
It will be reduced containing TOC after the 500ml raw water treatment process through the invention that TOC amount is 159400mg/L
98.55%.
The present invention and its embodiments have been described above, this description is no restricted, and actual structure is not
It is confined to this.All in all if those of ordinary skill in the art are inspired by it, in the feelings for not departing from the invention objective
Under condition, frame mode similar with the technical solution and embodiment are not inventively designed, should belong to guarantor of the invention
Protect range.
Claims (4)
1. a kind of agricultural chemicals waste water recycling treatment process, it is characterised in that: including reduction vaporization, multistage electrocatalytic oxidation and solid phase
Extraction, it is described be evaporated under reduced pressure comprising the following specific steps
(1) it extracts 1: taking the waste water water sample of hydrochloride containing monomethyl amine that toluene is added and mixed, stirred.
(2) decompression dealcoholysis evaporation: under negative pressure -0.08Mpa environment, tower bottom higher temperature distillating carbinol is kept, complete side is distilled
Mother liquor TOC.
(3) 2 are extracted: toluene mixing, stirring is added in mother liquor in step 2.
(4) low temperature is concentrated: water extracted in step 3 being carried out low temperature concentration, keeps negative pressure -0.08Mpa in bottle, controls bottom
Mother liquor is not steamed salt by temperature, only carries out concentration outflow, surveys distillate TOC.
It is described multistage electrocatalytic oxidation comprising the following specific steps
(1) level-one electrocatalytic oxidation: positive titanium, cathode stainless steel, holding electric current 3A, room temperature electrolysis 2h, underfill active carbon,
Survey TOC.
(2) coagulating sedimentation 1: electrolysis is discharged, coagulating sedimentation.
(3) second level electrocatalytic oxidation: positive titanium, cathode stainless steel, holding electric current 3A, room temperature electrolysis 2h, underfill active carbon,
Survey TOC.
(4) coagulating sedimentation 2: electrolysis is discharged, coagulating sedimentation.
The Solid Phase Extraction comprising the following specific steps
(1) water being electrolysed out in multistage electrocatalytic oxidation step 4 resin adsorption: is subjected to resin adsorption, resin JD-015, flow velocity
1bv/h, adsorption volume 24bv.
(2) resin desorption: 2bv methanol+2bv methanol+3bv washing+3bv washing.
2. a kind of agricultural chemicals waste water recycling treatment process according to claim 1, it is characterised in that: in the reduction vaporization
Water sample in step 1 and step 3 is mixed by 1:1 with toluene, and stirring duration is 30min.
3. a kind of agricultural chemicals waste water recycling treatment process according to claim 1, it is characterised in that: in the reduction vaporization
Step 2 column bottom temperature is 90 degree.
4. a kind of agricultural chemicals waste water recycling treatment process according to claim 1, it is characterised in that: in the reduction vaporization
Bottom temperature is 75 degree in step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258047.0A CN110127919A (en) | 2019-04-01 | 2019-04-01 | A kind of agricultural chemicals waste water recycling treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258047.0A CN110127919A (en) | 2019-04-01 | 2019-04-01 | A kind of agricultural chemicals waste water recycling treatment process |
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| CN110127919A true CN110127919A (en) | 2019-08-16 |
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ID=67569190
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| CN201910258047.0A Pending CN110127919A (en) | 2019-04-01 | 2019-04-01 | A kind of agricultural chemicals waste water recycling treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646625A (en) * | 2020-06-19 | 2020-09-11 | 见嘉环境科技（苏州）有限公司 | Water treatment device adopting multistage electrocatalysis evaporation and application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693668A (en) * | 2009-11-05 | 2010-04-14 | 福州大学 | Absorption distillation method for using adsorption resin to treat waste water containing dimethyl formamide |
| US20130313199A1 (en) * | 2012-05-23 | 2013-11-28 | High Sierra Energy, LP | System and method for treatment of produced waters |
| CN104193071A (en) * | 2014-09-27 | 2014-12-10 | 安徽金禾实业股份有限公司 | Treating method of high-ammonia-nitrogen mother liquor wastewater in MCP (methyl cyclopentenolone) production |
| CN106745536A (en) * | 2017-01-04 | 2017-05-31 | 段启彬 | The method that electrolysis electrocatalytic oxidation binding resin exchanges the dirty Organic substance in water of removing |
| CN207210146U (en) * | 2017-08-30 | 2018-04-10 | 北京中暄环境科技有限公司 | Garbage percolation liquid treating system |
-
2019
- 2019-04-01 CN CN201910258047.0A patent/CN110127919A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693668A (en) * | 2009-11-05 | 2010-04-14 | 福州大学 | Absorption distillation method for using adsorption resin to treat waste water containing dimethyl formamide |
| US20130313199A1 (en) * | 2012-05-23 | 2013-11-28 | High Sierra Energy, LP | System and method for treatment of produced waters |
| CN104193071A (en) * | 2014-09-27 | 2014-12-10 | 安徽金禾实业股份有限公司 | Treating method of high-ammonia-nitrogen mother liquor wastewater in MCP (methyl cyclopentenolone) production |
| CN106745536A (en) * | 2017-01-04 | 2017-05-31 | 段启彬 | The method that electrolysis electrocatalytic oxidation binding resin exchanges the dirty Organic substance in water of removing |
| CN207210146U (en) * | 2017-08-30 | 2018-04-10 | 北京中暄环境科技有限公司 | Garbage percolation liquid treating system |
Non-Patent Citations (1)
| Title |
|---|
| 环境保护部科技标准司，中国环境科学学会: "《"十一五"环境保护科学技术奖汇编》", 29 February 2012, 中国环境科学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646625A (en) * | 2020-06-19 | 2020-09-11 | 见嘉环境科技（苏州）有限公司 | Water treatment device adopting multistage electrocatalysis evaporation and application method |
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Application publication date: 20190816 |
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