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CN105800880A - Glyphosate production wastewater treatment technology - Google Patents

Glyphosate production wastewater treatment technology Download PDF

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Publication number
CN105800880A
CN105800880A CN201610316241.6A CN201610316241A CN105800880A CN 105800880 A CN105800880 A CN 105800880A CN 201610316241 A CN201610316241 A CN 201610316241A CN 105800880 A CN105800880 A CN 105800880A
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CN
China
Prior art keywords
waste water
glyphosate
production wastewater
water
treatment
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
Application number
CN201610316241.6A
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Chinese (zh)
Inventor
徐益峰
方冉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI YINONG CHEMICAL Co Ltd
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ANHUI YINONG CHEMICAL Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by ANHUI YINONG CHEMICAL Co Ltd filed Critical ANHUI YINONG CHEMICAL Co Ltd
Priority to CN201610316241.6A priority Critical patent/CN105800880A/en
Publication of CN105800880A publication Critical patent/CN105800880A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/306Pesticides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02Softening water by precipitation of the hardness
    • C02F5/06Softening water by precipitation of the hardness using calcium compounds

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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)
  • Water Treatment By Sorption (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention relates to the industrial wastewater treatment technology, belongs to the technical field of environmental protection and particularly relates to a glyphosate production wastewater treatment technology. The technology comprises the following specific steps: glyphosate recycling, physicochemical treatment, biochemical pretreatment, biochemical treatment and advanced treatment. In the invention, the glyphosate is recycled while the glyphosate production wastewater is treated, and the unity of economic benefits, environmental benefits and social benefits is realized. In the wastewater treatment process, by combining physicochemical pretreatment, biochemical treatment and advanced treatment, the effluent quality reaches the national discharge standard. In the technology, the system operation is stable, the treatment effect is good, and the treatment cost is relatively low.

Description

A kind of glyphosate production wastewater processes technique
Technical field
The present invention relates to technique for treating industrial wastewater, be specifically related to a kind of glyphosate production wastewater and process technique.
Background technology
Glyphosate be a kind of high-efficiency low-toxicity bud after steriland herbicide, be the maximum kind of current domestic herbicide yield.The industrialized preparing process of glyphosate currently mainly has two kinds: one to be glycine method, and two is iminodiacetic acid (salt) acid system (IDA method), no matter any production technology, and the generation of glyphosate waste water is all inevitable.Glyphosate production wastewater belongs to poisonous and hazardous industrial production wastewater, have that discharge capacity is big, pollutant levels are high, toxicity is big, salinity high, the main component of waste water is the impurity such as glyphosate, formaldehyde, methanol, catalyst and other salt, and having many is can not biologicallydegraded effluent or to amicine.When can produce 10% gyphosate solution in the past, the glyphosate in waste water is used directly in the water preparation of low concentration, it does not have waste, the wastewater treatment thus brought and problem of environmental pollution are so not severe.Since the Ministry of Agriculture, No. 1158 files are put into effect, clear stipulaties stops the gyphosate solution registration lower than 30% of the approval active constituent content, it is deployed into low concentration water preparation after evaporation and concentration glyphosate mother solution and is subject to forbidding of national policy, glyphosate producer faces product transformation, the reduction of discharging of glyphosate waste water and recycling become the common problem of industry, it would be highly desirable to solve.Therefore in the urgent need to the process technique of a kind of glyphosate waste water, while recycling glyphosate, can effectively administer again waste water, reach the unification of economic benefit and environmental benefit.
Summary of the invention
It is an object of the invention to provide a kind of glyphosate production wastewater efficient, that cost is low and the response rate is high and process technique.
This invention address that the technical scheme of the problems referred to above is as follows:
A kind of glyphosate production wastewater processes technique, and concrete technology comprises the following steps:
(1) glyphosate reclaims: waste water is filtered pretreatment, removes insoluble matter impurity in waste water, then the waste water after filtration is delivered to the first regulating reservoir, add quick lime, regulate pH7~10, stir 0.5~2h, filter, separate filtering residue and pretreated waste water, filtering residue adds hydrochloric acid, regulates pH2~3, filter, obtaining glyphosate calcium salt, add PCW softening agent and can obtain glyphosate concentrated solution, filtering drying obtains glyphosate;
(2) materializing strategy: pretreated waste water is delivered to the second regulating reservoir, wastewater pH 3~5 in regulating reservoir, then enter waste water lifting in Fe/Cu micro cell, and the response time is 2~5h, then being re-fed in Fenton reactor and carry out oxidation processes, the response time is 2~5h;
(3) biochemical pretreatment: the waste water that step (2) processes is introduced the first coagulative precipitation tank, then again by waste water lifting to the 3rd regulating reservoir, regulating wastewater pH is 7.5~9;
(4) biochemical treatment: biochemical pretreated waste water is sent in upflow anaerobic sludge blanket reactor, after stopping 0.5~2 day, waste water is introduced anoxia biochemistry pool, after stopping 1~2 day, waste water is delivered in aerobic reactor, introduce after stopping 1~2.5 day in second pond, again being processed to upflow anaerobic sludge blanket reactor by sludge reflux in second pond, supernatant water introduces subsequent processing;
(5) advanced treating: the supernatant water of step (4) is introduced the second coagulative precipitation tank, adds polyaluminium sulfate in pond, introduces the water in activated carbon adsorption tank, water outlet after stopping 0.5~1.5 day after 0.5~1 day response time.
Preferably, the mass fraction adopting hydrochloric acid in step (1) is 18%~28%.
Preferably, aeration tube is set in the first regulating reservoir, and carries out blast aeration.
Preferably, at the bottom of upflow anaerobic sludge blanket reactor pond, circulating pump water-distributing device is set.
Preferably, in anoxia biochemistry pool, boring aeration pipe is set.
Preferably, high-performance bio filler is set in aerobic reactor.
The invention has the beneficial effects as follows:
The present invention, while processing glyphosate production wastewater, has reclaimed glyphosate, and the response rate of glyphosate is 70~76%, reaches the unification of economic benefit, environmental benefit and social benefit.In the process of wastewater treatment, adopt materialized pretreatment, the mode that biochemical treatment and advanced treating combine, make effluent quality reach discharging standards.This process system is stable, and high treating effect and processing cost are relatively low.
Detailed description of the invention
Below embodiments of the invention being elaborated, the present embodiment is carried out under premised on technical solution of the present invention, gives detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
A kind of glyphosate production wastewater processes technique, and concrete technology comprises the following steps:
(1) glyphosate reclaims: waste water is filtered pretreatment, remove insoluble matter impurity in waste water, then the waste water after filtration is delivered to the first regulating reservoir, aeration tube is set in pond, and carry out blast aeration, in pond, add quick lime, regulate pH7~10, stir 2h, filter, separating filtering residue and pretreated waste water, adding mass fraction in filtering residue is 25%~28% hydrochloric acid, regulates pH2~3, filter, obtaining glyphosate calcium salt, add PCW softening agent and can obtain glyphosate concentrated solution, filtering drying obtains glyphosate;
(2) materializing strategy: pretreated waste water is delivered to the second regulating reservoir, wastewater pH 3~5 in regulating reservoir, then enter waste water lifting in Fe/Cu micro cell, and the response time is 3h, then being re-fed in Fenton reactor and carry out oxidation processes, the response time is 3h;
(3) biochemical pretreatment: the waste water that step (2) processes is introduced the first coagulative precipitation tank, then again by waste water lifting to the 3rd regulating reservoir, regulating wastewater pH is 7.5~9;
(4) biochemical treatment: biochemical pretreated waste water is sent in upflow anaerobic sludge blanket reactor, circulating pump water-distributing device is set at the bottom of the pond of reactor, waste water is introduced in the anoxia biochemistry pool being provided with boring aeration pipe after stopping 0.5 day, after stopping 1 day, waste water is delivered in the aerobic reactor being provided with high-performance bio filler, introduce after stopping 1.5 days in second pond, again being processed to upflow anaerobic sludge blanket reactor by sludge reflux in second pond, supernatant water introduces subsequent processing;
(5) advanced treating: the supernatant water of step (4) is introduced the second coagulative precipitation tank, adds polyaluminium sulfate in pond, introduces the water in activated carbon adsorption tank, water outlet after stopping 1 day after 0.5 day response time.
Production waste water after treatment, after testing, in water outlet, COD is 71.8mg/l.
Embodiment 2
A kind of glyphosate production wastewater processes technique, and concrete technology comprises the following steps:
(1) glyphosate reclaims: waste water is filtered pretreatment, remove insoluble matter impurity in waste water, then the waste water after filtration is delivered to the first regulating reservoir, aeration tube is set in pond, and carry out blast aeration, in pond, add quick lime, regulate pH7~10, stir 1.5h, filter, separating filtering residue and pretreated waste water, adding mass fraction in filtering residue is 20%~23% hydrochloric acid, regulates pH2~3, filter, obtaining glyphosate calcium salt, add PCW softening agent and can obtain glyphosate concentrated solution, filtering drying obtains glyphosate;
(2) materializing strategy: pretreated waste water is delivered to the second regulating reservoir, wastewater pH 3~5 in regulating reservoir, then enter waste water lifting in Fe/Cu micro cell, and the response time is 4h, then being re-fed in Fenton reactor and carry out oxidation processes, the response time is 3h;
(3) biochemical pretreatment: the waste water that step (2) processes is introduced the first coagulative precipitation tank, then again by waste water lifting to the 3rd regulating reservoir, regulating wastewater pH is 7.5~9;
(4) biochemical treatment: biochemical pretreated waste water is sent in upflow anaerobic sludge blanket reactor, circulating pump water-distributing device is set at the bottom of the pond of reactor, waste water is introduced in the anoxia biochemistry pool being provided with boring aeration pipe after stopping 1 day, after stopping 1.5 days, waste water is delivered in the aerobic reactor being provided with high-performance bio filler, introduce after stopping 2 days in second pond, again being processed to upflow anaerobic sludge blanket reactor by sludge reflux in second pond, supernatant water introduces subsequent processing;
(5) advanced treating: the supernatant water of step (4) is introduced the second coagulative precipitation tank, adds polyaluminium sulfate in pond, introduces the water in activated carbon adsorption tank, water outlet after stopping 0.5 day after 0.5 day response time.
Production waste water after treatment, after testing, in water outlet, COD is 62.5mg/l.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.

Claims (6)

1. a glyphosate production wastewater processes technique, it is characterised in that concrete technology comprises the following steps:
(1) glyphosate reclaims: waste water is filtered pretreatment, removes insoluble matter impurity in waste water, then the waste water after filtration is delivered to the first regulating reservoir, add quick lime, regulate pH7~10, stir 0.5~2h, filter, separate filtering residue and pretreated waste water, filtering residue adds hydrochloric acid, regulates pH2~3, filter, obtaining glyphosate calcium salt, add PCW softening agent and can obtain glyphosate concentrated solution, filtering drying obtains glyphosate;
(2) materializing strategy: pretreated waste water is delivered to the second regulating reservoir, wastewater pH 3~5 in regulating reservoir, then enter waste water lifting in Fe/Cu micro cell, and the response time is 2~5h, then being re-fed in Fenton reactor and carry out oxidation processes, the response time is 2~5h;
(3) biochemical pretreatment: the waste water that step (2) processes is introduced the first coagulative precipitation tank, then again by waste water lifting to the 3rd regulating reservoir, regulating wastewater pH is 7.5~9;
(4) biochemical treatment: biochemical pretreated waste water is sent in upflow anaerobic sludge blanket reactor, after stopping 0.5~2 day, waste water is introduced anoxia biochemistry pool, after stopping 1~2 day, waste water is delivered in aerobic reactor, introduce after stopping 1~2.5 day in second pond, again being processed to upflow anaerobic sludge blanket reactor by sludge reflux in second pond, supernatant water introduces subsequent processing;
(5) advanced treating: the supernatant water of step (4) is introduced the second coagulative precipitation tank, adds polyaluminium sulfate in pond, introduces the water in activated carbon adsorption tank, water outlet after stopping 0.5~1.5 day after 0.5~1 day response time.
2. a kind of glyphosate production wastewater according to claim 1 processes technique, it is characterised in that the mass fraction adopting hydrochloric acid in step (1) is 18%~28%.
3. a kind of glyphosate production wastewater according to claim 1 processes technique, it is characterised in that arranges aeration tube in the first regulating reservoir, and carries out blast aeration.
4. a kind of glyphosate production wastewater according to claim 1 processes technique, it is characterised in that arrange circulating pump water-distributing device at the bottom of upflow anaerobic sludge blanket reactor pond.
5. a kind of glyphosate production wastewater according to claim 1 processes technique, it is characterised in that arrange boring aeration pipe in anoxia biochemistry pool.
6. a kind of glyphosate production wastewater according to claim 1 processes technique, it is characterised in that arrange high-performance bio filler in aerobic reactor.
CN201610316241.6A 2016-05-11 2016-05-11 Glyphosate production wastewater treatment technology Pending CN105800880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610316241.6A CN105800880A (en) 2016-05-11 2016-05-11 Glyphosate production wastewater treatment technology

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113087280A (en) * 2019-12-23 2021-07-09 南京延长反应技术研究院有限公司 System and method for treating glyphosate production wastewater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU608108B2 (en) * 1987-12-31 1991-03-21 Monsanto Company Process for treating glyphosate process waste streams
CN101671089A (en) * 2009-10-12 2010-03-17 福建三农集团股份有限公司 Pretreatment method for glyphosate industrial waste water
CN203411434U (en) * 2013-06-27 2014-01-29 浙江卓锦工程技术有限公司 Glyphosate pesticide wastewater treatment system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU608108B2 (en) * 1987-12-31 1991-03-21 Monsanto Company Process for treating glyphosate process waste streams
CN101671089A (en) * 2009-10-12 2010-03-17 福建三农集团股份有限公司 Pretreatment method for glyphosate industrial waste water
CN203411434U (en) * 2013-06-27 2014-01-29 浙江卓锦工程技术有限公司 Glyphosate pesticide wastewater treatment system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
徐明礼等: "草甘膦生产废水的预处理与综合利用", 《南京师范大学学报(工程技术版)》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113087280A (en) * 2019-12-23 2021-07-09 南京延长反应技术研究院有限公司 System and method for treating glyphosate production wastewater

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Application publication date: 20160727