CN204529601U - Waste water from methylamine production treatment system - Google Patents
Waste water from methylamine production treatment system Download PDFInfo
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- CN204529601U CN204529601U CN201520096129.7U CN201520096129U CN204529601U CN 204529601 U CN204529601 U CN 204529601U CN 201520096129 U CN201520096129 U CN 201520096129U CN 204529601 U CN204529601 U CN 204529601U
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Abstract
The utility model discloses a kind of waste water from methylamine production treatment system, comprise biochemical treatment system, described biochemical treatment system comprise connect successively water quality regulation pond, Fenton Strong oxdiative pond, hydrolysis acidification pool, hold concurrently oxygen/aerobic activated sludge pond and second pond, also pretreatment system is connected with before water quality regulation pond, described pretreatment system is effluent segregation gathering system, is divided into normal wastewater collecting tank, DMF wastewater collection pond and abnormal hc effluent collecting tank.It adopts the principle of categorised collection comprehensive treating process, all kinds of waste water quality things to know, be convenient to better regulation and control, stablize waste water quality, ensure the steady running of subsequent biochemical systems stay, processing technological flow is simple simultaneously, and managed operation is convenient, reduce operation management cost, finally make the treatment effect of waste water have very large lifting, be embodied in TN clearance and be promoted to 89% by 0%, ammonia nitrogen removal frank is more than 98%.
Description
Technical field
The utility model relates to field of waste water treatment, particularly a kind of waste water from methylamine production treatment system.
Background technology
Methylamine is a kind of important Organic Chemicals, and it is widely used in national economy every profession and trade, is the basic raw material of the industry such as agricultural chemicals, medicine, synthol, synthetic resins, man-made fiber, solvent, tensio-active agent, high energy fuels, photographic material.
Agricultural chemicals aspect Monomethylamine is mainly for the production of Rogor, monocrotophos, SevinCarbaryl, dimethacarb, Ro 7-5050, meta-tolyl-N-methylcarbamate (MTMC) etc.; Dimethylamine is mainly for the production of disosultap, chlorotoluron; Trimethylamine 99 is mainly for the production of choline dichloride choline chloride 60 etc.Can be used for synthesizing narcotic, stimulant, anodyne, the multi-medicaments such as antibiotic at pharmaceutical industry methylamine.In national defence chemical industry, one, dimethylamine is respectively used to produce the high-quality liquid high energy fuels of rocket.Dimethylamine can prepare excellent solvent DMF, and DMF is the best solvent of the textile of chemical fibre such as polyacrylonitrile, polyurethane(s), polyvinyl chloride, simultaneously or the indispensable solvent of synthetic leather industry.
In addition, methylamine also can be used for producing the products such as tensio-active agent, water gel explosive, fodder additives, developing solution.DMF is a kind of important Organic Chemicals and excellent aprotic polar organic solvent, its stable chemical nature, boiling point and flash-point higher, toxicity is less.It can with water, ether, ethanol, kerosene, chlorinated hydrocarbon, aromatic hydrocarbons and most immiscible organic solvent, the polymkeric substance such as solubilized ethyl cellulose, soluble cotton, butylacetate Mierocrystalline cellulose, polyacrylonitrile, vinylchlorid, polyvinyl chloride at normal temperatures, be called as all-round solvent, be widely used in the fields such as leather, synthon, medicine, petrochemical complex, electronics, dyestuff, coating, intermetallic composite coating.
Now current domestic most chemical plant adopts chemical reactive synthesis method to produce methylamine, DMF series product.This complex manufacturing, and the raw material used in production process is methyl alcohol and ammonia, chemosynthesis reaction produces a large amount of by products and is hazardous and noxious substances.Therefore the waste strength produced in production process is higher, water-quality constituents is complicated and changeable, and by product is wider.The situation of its concrete waste water quality is: PH is 6-12, salinity is 2000-40000, COD content is 1000-30000mg/L, NH4+-N content is 50-5000mg/L, TN content (TN=organonitrogen+inorganic nitrogen) is 200-10000mg/L, DMF content is 30-500mg/L, and other proterties are embodied in oil-containing, irritant smell, in yellow/light green, byproduct compounds is not clear, toxic etc.
From above-mentioned data, this waste water contains higher inorganic salinity, COD, NH
4 +-N, TN, pH fluctuation range are also larger; In addition, the DMF composition contained in waste water and by product Monomethylamine, dimethylamine etc. all belong to toxicant, not only have harm to human body, and also have stronger toxic action to microorganism, even make microorganism morph, become extinct, greatly have impact on the degradation effect of biological treatment system.
Because the water-quality constituents in methylamine waste water is complicated, toxicity more greatly causes the poisoning dormancy of biochemical system active sludge, thus causes water outlet not up to standard, therefore, in industry, waste water from methylamine production process is substantially without normal qualified discharge.
Utility model content
The purpose of this utility model is the waste water from methylamine production treatment system providing a kind of low cost, efficient, stably reaching standard discharge in order to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, waste water from methylamine production treatment system designed by the utility model, comprise biochemical treatment system, described biochemical treatment system comprise connect successively water quality regulation pond, Fenton Strong oxdiative pond, hydrolysis acidification pool, hold concurrently oxygen/aerobic activated sludge pond and second pond, also pretreatment system is connected with before water quality regulation pond, described pretreatment system is effluent segregation gathering system, is divided into normal wastewater collecting tank, DMF wastewater collection pond and abnormal hc effluent collecting tank.Described DMF wastewater collection pond is dimethylformamide-containing waste water collecting tank.
Main containing having plenty of the methylamine such as Monomethylamine, dimethylamine organic substance and equipment cleaning waste water etc. in described normal factory effluent, it is high that main water quality shows as organic ammonia nitrogen content; Described DMF waste water is dimethylamine and carbonic acid gas synthesis mainly, and DMF residual in equipment in building-up process, is converted to liquid phase in gas phase through process and produces; DMF itself just has certain suppression to biochemical system active sludge, and very easily cause the bacterial classification of whole biochemical system to enter dormancy or death when DMF excessive concentration, cause system crash, water outlet indices is not up to standard; Described abnormal hc effluent belongs to production plant production department and stablizes institute's waste discharge, principal pollutant are except outside pollutent in normal factory effluent, some are also had to produce chemical combination byproduct of reaction in addition, inorganic salt, COD, ammonia nitrogen indices all considerably beyond normal factory effluent index, show as certain toxicity.
Water quality regulation pond needs the comprehensive adjustment of carrying out water quality, the water yield according to the water quality situation of above-mentioned three kinds of waste water, is beneficial to the steady running of follow-up system, is promoted to Fenton Strong oxdiative pond processes after water quality regulation pond water quality regulation is good by pump.
The Main Function in described Fenton Strong oxdiative pond water quality regulation pond is promoted the waste water of coming carry out Strong oxdiative process, Main Function is for removing most of hazardous and noxious substances, larger molecular organics, degraded part COD in Decomposition Wastewater simultaneously, part Organic N H in release waste water
4 +-N, removal unit divides colourity, improves the biochemical of subsequent biochemical system, prevents the poisoning or dormancy of biochemical system active sludge.This Fenton Strong oxdiative pond is the known device of the art, and no further details to be given herein.
The Main Function of described hydrolysis acidification pool is that the water outlet in Fenton Strong oxdiative pond is carried out Organic N H further
4 +the release of-N and the raising of biodegradability, can remove part COD simultaneously, continue to decompose some larger molecular organicses, for follow-up double oxygen/aerobic activated sludge pond provides favourable Parameter Conditions.Wherein the dissolved oxygen of hydrolysis acidification pool controls at below 0.5mg/L.
The Main Function of double oxygen/aerobic activated sludge pond removes ammonia nitrogen contained in waste water and degradable COD.In described double oxygen/aerobic activated sludge pond, the basin's effective volume of oxygen compatibility pool and the basin's effective volume ratio of Aerobic Pond are 1:1 ~ 1:5, and oxygen compatibility pool dissolved oxygen at 0 ~ 1.0mg/L, Aerobic Pond dissolved oxygen at 1 ~ 6mg/L, the system residence time is 2 ~ 6 days, return sludge ratio is 0.3 ~ 1.5, and mixed liquid recycle ratio is 2:1 ~ 8:1.
In order to make methylamine waste water obtain better treatment effect, after described second pond, be also connected with four phase multi-stage oxidizing devices.
The Main Function of described four phase multi-stage oxidizing reactors is the COD removing the difficult degradation of bio-chemical effluent mesophytization, bio-chemical effluent COD is degraded removal further, reaches even well below emission request.At this, this four phases multi-stage oxidizing reactor is also the known device of the art, also seldom describes at this.
The operation method of described waste water from methylamine production treatment system, after the normal factory effluent produced in production of methylamine, DMF waste water, abnormal hc effluent being collected respectively, all kinds of waste water quality composition, the water yield is promoted to water quality regulation pond according to quantity and regulates; All kinds of waste water is carrying out water quality, runoff investigation through water quality regulation pond, consider that the inorganic salinity of waste water is higher, toxic component excessive concentration simultaneously, it is diluted, to meet the needs of subsequent biochemical treatment system so can suitably add dilution water according to field condition in water quality regulation pond; The water outlet of water quality regulation pond directly enters Fenton Strong oxdiative pond, the hazardous and noxious substances in waste water is carried out decomposing, removing, and removes the COD of part, release Organic N H simultaneously
4 +-N; The water outlet in Fenton Strong oxdiative pond enters hydrolysis acidification pool, continues to remove part hazardous and noxious substances, degraded part COD, fully release Organic N H
4 +-N; Hydrolysis acidification pool water outlet enters double oxygen/aerobic activated sludge pond and fully removes the degradable COD of wastewater biochemical and remove NH completely
4 +-N; Oxygen/aerobic system activated sludge tank water outlet of holding concurrently enters back segment four phase multi-stage oxidizing device after second pond, can remove difficult degradation molecule COD further.
The waste water from methylamine production treatment system that the utility model obtains, its technique effect has the following advantages: the principle 1, adopting categorised collection comprehensive treating process, all kinds of waste water quality things to know, is convenient to better regulation and control, stablizes waste water quality, ensures the steady running of subsequent biochemical systems stay;
2, the Main Function in Fenton Strong oxdiative pond is used to remove hazardous and noxious substances contained in waste water, improves the biodegradability energy index of subsequent biochemical system;
3, processing technological flow is simple, and managed operation is convenient, reduces operation management cost;
4, the treatment effect of waste water has very large lifting, and be embodied in TN clearance and be promoted to 89% by 0%, ammonia nitrogen removal frank is more than 98%.
5, very easily on existing environmental protection facility process basis, economical, rationally, efficiently undergo technological transformation, just can reach emission standard requirement.
Accompanying drawing explanation
Fig. 1 is the schema of the waste water from methylamine production treatment system of embodiment 1;
Fig. 2 is the schema of the waste water from methylamine production treatment system of embodiment 2.
In figure: water quality regulation pond 1, Fenton Strong oxdiative pond 2, hydrolysis acidification pool 3, hold concurrently oxygen/aerobic activated sludge pond 4, second pond 5, normal wastewater collecting tank 6, DMF wastewater collection pond 7, abnormal hc effluent collecting tank 8, four phase multi-stage oxidizing device 9.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As shown in Figure 1, the waste water from methylamine production treatment system that the present embodiment provides, comprise biochemical treatment system, described biochemical treatment system comprise connect successively water quality regulation pond 1, Fenton Strong oxdiative pond 2, hydrolysis acidification pool 3, hold concurrently oxygen/aerobic activated sludge pond 4 and second pond 5, also pretreatment system is connected with before water quality regulation pond 1, described pretreatment system is effluent segregation gathering system, is divided into normal wastewater collecting tank 6, DMF wastewater collection pond 7 and abnormal hc effluent collecting tank 8.
The operation method of described waste water from methylamine production treatment system, after the normal factory effluent produced in production of methylamine, DMF waste water, abnormal hc effluent being collected respectively, all kinds of waste water quality composition, the water yield is promoted to water quality regulation pond 1 according to quantity and regulates; All kinds of waste water is carrying out water quality, runoff investigation through water quality regulation pond 1, consider that the inorganic salinity of waste water is higher, toxic component excessive concentration simultaneously, so 1 can suitably add dilution water according to field condition and dilute it, to meet the needs of subsequent biochemical treatment system in water quality regulation pond; Water quality regulation pond 1 water outlet directly enters Fenton Strong oxdiative pond 2, the hazardous and noxious substances in waste water is carried out decomposing, removing, and removes the COD of part, release Organic N H simultaneously
4 +-N; The water outlet in Fenton Strong oxdiative pond 2 enters hydrolysis acidification pool 3, continues to remove part hazardous and noxious substances, degraded part COD, fully release Organic N H
4 +-N, wherein the dissolved oxygen of hydrolysis acidification pool 3 controls at below 0.5mg/L; Hydrolysis acidification pool 3 water outlet enters double oxygen/aerobic activated sludge pond 4 and fully removes the degradable COD of wastewater biochemical and remove NH completely
4 +-N, in described double oxygen/aerobic activated sludge pond 4, the basin's effective volume of oxygen compatibility pool and the basin's effective volume ratio of Aerobic Pond are 1:1 ~ 1:5, and oxygen compatibility pool dissolved oxygen at 0 ~ 1.0mg/L, Aerobic Pond dissolved oxygen at 1 ~ 6mg/L, the system residence time is 2 ~ 6 days, return sludge ratio is 0.3 ~ 1.5, and mixed liquid recycle ratio is 2:1 ~ 8:1; Double oxygen/aerobic system activated sludge tank 4 water outlet water outlet after second pond.
The methylamine waste water that table one is certain group's industry park methylamine production device domestic adopts native system to carry out the operating performance table of wastewater treatment.
The operating performance table of table Monomethylamine production wastewater treatment system
Embodiment 2:
As shown in Figure 2, the waste water from methylamine production treatment system that the present embodiment provides, its general structure territory embodiment 1 is identical, but in concrete use procedure, in order to make methylamine waste water obtain better treatment effect, after described second pond 5, be also connected with four phase multi-stage oxidizing devices 9.From second pond 5 water out after four phase multi-stage oxidizing devices 9 process, difficult degradation molecule COD can be removed further, reach even well below emission request.
Claims (3)
1. a waste water from methylamine production treatment system, comprise biochemical treatment system, it is characterized in that: described biochemical treatment system comprise connect successively water quality regulation pond (1), Fenton Strong oxdiative pond (2), hydrolysis acidification pool (3), hold concurrently oxygen/aerobic activated sludge pond (4) and second pond (5), also be connected with pretreatment system water quality regulation pond (1) is front, described pretreatment system is effluent segregation gathering system, is divided into normal wastewater collecting tank (6), DMF wastewater collection pond (7) and abnormal hc effluent collecting tank (8).
2. a kind of waste water from methylamine production treatment system according to claim 1, is characterized in that: in described double oxygen/aerobic activated sludge pond, the basin's effective volume of oxygen compatibility pool and the basin's effective volume ratio of Aerobic Pond are 1:1 ~ 1:5.
3. a kind of waste water from methylamine production treatment system according to claim 1 and 2, is characterized in that: after described second pond (5), be also connected with four phase multi-stage oxidizing devices (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096129.7U CN204529601U (en) | 2015-02-10 | 2015-02-10 | Waste water from methylamine production treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520096129.7U CN204529601U (en) | 2015-02-10 | 2015-02-10 | Waste water from methylamine production treatment system |
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| CN204529601U true CN204529601U (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585130A (en) * | 2018-05-15 | 2018-09-28 | 凯莱英医药集团（天津）股份有限公司 | The electric Fenton oxidation processing method of acidity waste water containing DMF |
-
2015
- 2015-02-10 CN CN201520096129.7U patent/CN204529601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585130A (en) * | 2018-05-15 | 2018-09-28 | 凯莱英医药集团（天津）股份有限公司 | The electric Fenton oxidation processing method of acidity waste water containing DMF |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |