CN106145509A - A kind of wastewater preprocessing process - Google Patents
A kind of wastewater preprocessing process Download PDFInfo
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- CN106145509A CN106145509A CN201510172585.XA CN201510172585A CN106145509A CN 106145509 A CN106145509 A CN 106145509A CN 201510172585 A CN201510172585 A CN 201510172585A CN 106145509 A CN106145509 A CN 106145509A
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- waste water
- water
- sodium salt
- hydrazoic acid
- workshop section
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Abstract
The invention discloses a kind of wastewater preprocessing process, relate to technical field of waste water processing, sulphamide, 5-phenyl tetrazole, 2,2-dimethyl-thiazolidine, D/L-bis-are to toluoyltartaric, 2-chloro-4,6-dimethoxy-1,3,5-triazines, 2-amino-5, can produce substantial amounts of waste water and Hydrazoic acid,sodium salt in the production process of 7-dimethoxy-triazine pyrimidine.Wastewater preprocessing process of the present invention, waste water is through destroying Hydrazoic acid,sodium salt, the first regulating reservoir, multiple-effect evaporation, the second regulating reservoir, hydrolysis acidification, catalytic oxidation process, can effectively remove the Organic substance in waste water and noxious substance Hydrazoic acid,sodium salt, Multi-effect Evaporation Processes steam recycles can save the substantial amounts of energy.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly relate to a kind of wastewater preprocessing process.
Background technology
Along with the development of society, in order to prevent the deterioration of natural environment, to green hill, clear water, indigo plant
My god, the protection in sea, it is impossible to random sewer leaves about dirty gas.Sulphamide, 5-phenyl tetrazole,
2,2-dimethyl-thiazolidines, D/L-bis-are to toluoyltartaric, 2-chloro-4,6-dimethoxy
Base-1,3,5-triazines, 2-amino-5, in the production process of 7-dimethoxy-triazine pyrimidine
Substantial amounts of waste water can be produced, waste water does not contain only substantial amounts of concentration height, salinity height, is difficult to life
The Organic substance of thing degraded, but also noxious substance can be there is.This type of waste water difficult treatment, and
Process and bad environment and the mankind will be brought serious harm.
Summary of the invention
The purpose of the present invention for sulphamide, 5-phenyl tetrazole, 2,2-dimethyl-thiazolidine,
D/L-bis-is to toluoyltartaric, 2-chlorine-4,6-dimethoxy-1,3,5-triazine, 2-
Amino-5, the waste water difficult treatment that the production process of 7-dimethoxy-triazine pyrimidine produces
Problem, it is provided that a kind of wastewater preprocessing process, this wastewater preprocessing process is possible not only to process and gives up
Noxious substance in water and Organic substance, and high treating effect, and mass energy can be saved.
For achieving the above object, the technical solution used in the present invention is:
A kind of wastewater preprocessing process, comprises the following steps:
1) Hydrazoic acid,sodium salt is destroyed: containing Hydrazoic acid,sodium salt in waste water 1, Hydrazoic acid,sodium salt has toxicity
And easily explode, first carry out pretreatment to destroy Hydrazoic acid,sodium salt with sodium sulfite aqueous solution；
2) the first regulating reservoir: pretreated waste water 1 is mixed with waste water 2, uniformly
Water quality and quantity, regulation pH is about 7；
3) multiple-effect evaporation: waste water in the heater with steam heat-exchanging, subsequently into separator,
In waste water, water and low boiling Component seperation go out, and higher boiling components is residual liquid, adds vapours and is passed through vaporizer
In, produced indirect steam still can introduce in the second vaporizer as thermal source, the second evaporation
The heating chamber of device is the condenser of the first vaporizer, is coupled together by multiple vaporizers and grasps simultaneously
Make, constitute multi-effect evaporator；
4) the second regulating reservoir: the waste water processed through multiple-effect evaporation still contains the COD of higher concentration,
After the waste water that multiple-effect evaporation processes mixes with waste water 3, biochemical process is used to be for further processing；
5) hydrolysis acidification: containing larger molecular organics in composite waste, hydrolysis acidification is by waste water
In insoluble organic pollution dissolves, solvable some of complex pollutant are degraded, hydrolyze shape
The little molecule become is used as carbon source and the energy of fermentation by antibacterial；
6) catalytic oxidation: the water outlet after hydrolysis acidification processes enters biological contact oxidation pond and enters
Row biochemical treatment, sewage treatment plant is sent in the water outlet after contact oxidation method processes.
Further, described waste water 1 disperses/is centrifuged workshop section's generation to contain for 5-phenyl tetrazole
The waste water of Hydrazoic acid,sodium salt.
Further, described waste water 2 be D/L bis-to toluoyltartaric production process from
The waste water of heart workshop section generation, 2-chloro-4,6-dimethoxy-1,3,5-triazine production process sucking filtration work
The waste water of section generation, 2-amino-5,7-dimethoxy-triazine pyrimidine production process layering work
The waste water that section produces.
Further, described waste water 3 is to condense giving up of workshop section's generation in sulphamide production process
Waste water that water, 2,2-dimethyl-thiazolidine azeotropic dehydration workshop section produce, equipment clean waste water,
Ground flushing waste water, early-stage rainwater and sanitary wastewater.
Beneficial effects of the present invention: a kind of wastewater preprocessing process, waste water is through destroying Azide
Sodium, the first regulating reservoir, multiple-effect evaporation, the second regulating reservoir, hydrolysis acidification, catalytic oxidation process,
Can effectively remove the Organic substance in waste water and noxious substance, Multi-effect Evaporation Processes steam circulates
Utilization can save the substantial amounts of energy.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
When being embodied as, as it is shown in figure 1, a kind of wastewater preprocessing process flow chart.
Sulphamide, 5-phenyl tetrazole, 2,2-dimethyl-thiazolidine, D/L-bis-are to toluene first
Acyl tartaric acid, 2-chlorine-4,6-dimethoxy-1,3,5-triazine, 2-amino-5,7-diformazan
The production waste water of epoxide-triazine pyrimidine is about 8.937m3/ d, sanitary wastewater is about 6.0m3/ d,
Early-stage rainwater converts into 0.757m3/ d, it is 0.45m that equipment cleans waste water3/ d, ground flushing waste water
For 0.9m3/ d, waste gas absorption water is 13.5m3/ a, total wastewater flow rate is about 30.544m3/ d, examines
Considering the inhomogeneities to discharge of wastewater, building one and processing capacity is 50m3The sewage disinfection treatment of/d
Device, to its production waste water produced, equipment and ground flushing waste water, early-stage rainwater and life
Waste water carries out pretreatment, reaches chemical industry garden Sewage Plant and receives after pipe standards, discharges it into chemical industry garden dirty
Water treatment plant focuses on, up to standard after enter the Changjiang river.
A kind of wastewater preprocessing process, comprises the following steps:
1) Hydrazoic acid,sodium salt is destroyed: the waste water that 5-phenyl tetrazole disperses/be centrifuged workshop section to produce contains
Hydrazoic acid,sodium salt, Hydrazoic acid,sodium salt has toxicity and easily explodes, and first carries out with sodium sulfite aqueous solution
Pretreatment, to destroy Hydrazoic acid,sodium salt, reduces toxicity.
2) the first regulating reservoir: pretreated 5-phenyl tetrazole is disperseed/is centrifuged workshop section produce
Raw waste water and D/L bis-are centrifuged workshop section's generation to toluoyltartaric production process and give up
Waste water that water, 2-chloro-4,6-dimethoxy-1,3,5-triazine production process sucking filtration workshop section produces,
2-amino-5,7-dimethoxy-triazine pyrimidine production process are layered the waste water of workshop section's generation and enter
Row mixing, uniform water quality and quantity, D/L bis-is centrifuged work to toluoyltartaric production process
The waste water that section produces is acid waste water, and regulation pH is about 7.
3) multiple-effect evaporation: have organic concentration height in view of waste water, salinity is high, it is raw to be difficult to
The features such as thing degraded, especially salinity are high, plan to produce waste water, waste gas absorption water through multiple-effect steaming
Send out and process.Waste water in the heater with steam heat-exchanging, subsequently into separator, in waste water water and
Low boiling Component seperation goes out, and higher boiling components is residual liquid.Vapours will be added be passed through in vaporizer, be produced
Raw indirect steam still can introduce in another vaporizer, adding of second vaporizer as thermal source
Hot cell is the condenser of first vaporizer, is coupled together by several vaporizers and operates simultaneously,
I.e. constitute multi-effect evaporator.Multiple-effect evaporation can reduce energy resource consumption.
4) the second regulating reservoir: pretreated production waste water still contains the COD of higher concentration,
Follow-up plan uses biochemical process to be for further processing.Produce sulphamide production process condenses workshop section
Waste water, equipment that raw waste water, 2,2-dimethyl-thiazolidine azeotropic dehydration workshop section produce clean
At other waste water such as waste water, ground flushing waste water, early-stage rainwater and sanitary wastewater and multiple-effect evaporation
After the water outlet mixing of reason, further process.
5) hydrolysis acidification: containing larger molecular organics in composite waste, hydrolysis acidification can be by useless
Organic pollution insoluble in water dissolves, solvable some of complex pollutant are degraded.Hydrolysis
The little molecule formed is used as carbon source and the energy of fermentation by antibacterial.The oxidation of these Fermentations is
End-product is mainly the volatile acid of short chain, such as acetic acid, propanoic acid, valeric acid and caproic acid etc..
6) catalytic oxidation: the water outlet after hydrolysis acidification processes enters biological contact oxidation pond and enters
Row biochemical treatment.Biological contact oxidation process is a kind of between activated sludge process and biofilter
Bio membrane process, be characterized in arranging filler in pond, at the bottom of pond, sewage is filled by aeration
Oxygen, and sewage is in flow regime in making cell body, abundant with the filler in sewage to ensure sewage
Contact, it is to avoid there is sewage in biological contact oxidation pond and contact the defect of inequality with filler.Contact
It is higher that oxidizing process has treatment effeciency, and to water inlet impact load (hydraulic blow load and having
Machine concentration impact load) adaptive faculty strong., process the advantages such as the time is short.At contact oxidation method
Water outlet after reason can reach the pipe standards of receiving of sewage treatment plant.
Embodiment described above is only to be described the preferred embodiment of the present invention, and
Non-the spirit and scope of the present invention are defined.In the premise without departing from design concept of the present invention
Under, various modification that technical scheme is made by this area ordinary person and improvement, all
Protection scope of the present invention should be dropped into.
Claims (4)
1. a wastewater preprocessing process, it is characterised in that comprise the following steps:
1) Hydrazoic acid,sodium salt is destroyed: containing Hydrazoic acid,sodium salt in waste water 1, Hydrazoic acid,sodium salt has toxicity
And easily explode, first carry out pretreatment to destroy Hydrazoic acid,sodium salt with sodium sulfite aqueous solution；
2) the first regulating reservoir: pretreated waste water 1 is mixed with waste water 2, uniformly
Water quality and quantity, regulation pH is about 7；
3) multiple-effect evaporation: waste water in the heater with steam heat-exchanging, subsequently into separator,
In waste water, water and low boiling Component seperation go out, and higher boiling components is residual liquid, adds vapours and is passed through vaporizer
In, produced indirect steam still can introduce in the second vaporizer as thermal source, the second evaporation
The heating chamber of device is the condenser of the first vaporizer, is coupled together by multiple vaporizers and grasps simultaneously
Make, constitute multi-effect evaporator；
4) the second regulating reservoir: the waste water processed through multiple-effect evaporation still contains the COD of higher concentration,
After the waste water that multiple-effect evaporation processes mixes with waste water 3, biochemical process is used to be for further processing；
5) hydrolysis acidification: containing larger molecular organics in composite waste, hydrolysis acidification is by waste water
In insoluble organic pollution dissolves, solvable some of complex pollutant are degraded, hydrolyze shape
The little molecule become is used as carbon source and the energy of fermentation by antibacterial；
6) catalytic oxidation: the water outlet after hydrolysis acidification processes enters biological contact oxidation pond and enters
Row biochemical treatment, sewage treatment plant is sent in the water outlet after contact oxidation method processes.
2. according to a kind of wastewater preprocessing process described in claim 1, it is characterised in that:
Described waste water 1 disperses/is centrifuged workshop section to produce giving up containing Hydrazoic acid,sodium salt for 5-phenyl tetrazole
Water.
3. according to a kind of wastewater preprocessing process described in claim 1, it is characterised in that:
Described waste water 2 is centrifuged workshop section's generation for D/L bis-to toluoyltartaric production process and gives up
Waste water that water, 2-chloro-4,6-dimethoxy-1,3,5-triazine production process sucking filtration workshop section produces,
2-amino-5,7-dimethoxy-triazine pyrimidine production process are layered the waste water that workshop section produces.
4. according to a kind of wastewater preprocessing process described in claim 1, it is characterised in that:
Described waste water 3 is to condense waste water, the 2,2-dimethyl four that workshop section produces in sulphamide production process
Waste water that hydrogen thiazole azeotropic dehydration workshop section produces, equipment clean waste water, ground flushing waste water, just
Phase rainwater and sanitary wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172585.XA CN106145509A (en) | 2015-04-13 | 2015-04-13 | A kind of wastewater preprocessing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172585.XA CN106145509A (en) | 2015-04-13 | 2015-04-13 | A kind of wastewater preprocessing process |
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| CN106145509A true CN106145509A (en) | 2016-11-23 |
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| CN201510172585.XA Pending CN106145509A (en) | 2015-04-13 | 2015-04-13 | A kind of wastewater preprocessing process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265773A (en) * | 2017-07-26 | 2017-10-20 | 江苏道明化学有限公司 | A kind of preprocess method of recirculated water |
| CN107840519A (en) * | 2017-12-14 | 2018-03-27 | 山东省溯源绿色化工研究院 | The processing method and sewage disposal dedicated system of a kind of sodium azide sewage |
| CN108275834A (en) * | 2018-01-24 | 2018-07-13 | 储微微 | A kind of pre-processing device and processing method of recirculated water |
| CN117732095A (en) * | 2024-02-21 | 2024-03-22 | 珙县华洁危险废物治理有限责任公司成都分公司 | Method for treating sodium azide by adopting triple-effect evaporation system |
-
2015
- 2015-04-13 CN CN201510172585.XA patent/CN106145509A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265773A (en) * | 2017-07-26 | 2017-10-20 | 江苏道明化学有限公司 | A kind of preprocess method of recirculated water |
| CN107840519A (en) * | 2017-12-14 | 2018-03-27 | 山东省溯源绿色化工研究院 | The processing method and sewage disposal dedicated system of a kind of sodium azide sewage |
| CN108275834A (en) * | 2018-01-24 | 2018-07-13 | 储微微 | A kind of pre-processing device and processing method of recirculated water |
| CN117732095A (en) * | 2024-02-21 | 2024-03-22 | 珙县华洁危险废物治理有限责任公司成都分公司 | Method for treating sodium azide by adopting triple-effect evaporation system |
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Application publication date: 20161123 |