CN110526517A - A kind of medical intermediate production waste water treatment process - Google Patents
A kind of medical intermediate production waste water treatment process Download PDFInfo
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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
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- 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
- C02F2103/343—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 pharmaceutical industry, e.g. containing antibiotics
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention discloses a kind of medical intermediate production waste water treatment process, including pretreatment process, biochemical treatment process and advanced treating process, pretreatment process successively passes through the first cryogenic high pressure distillation still, the second cryogenic high pressure distillation still, comprehensive wastewater collecting pit, evaporator, condensate liquid collecting pit, Inner electrolysis pond, Fenton's reaction pond, combination precipitation-air-flotation device processing.Biochemical treatment process successively passes through hydrolysis acidification pool, UASB anaerobic reactor, A/O biochemical treatment system, secondary settling tank processing.Advanced treating process successively passes through ABFT aeration biological fluidization pool, efficient flocculating sedimentation basin, rear end Fenton's reaction pond, rear end combination precipitation-air-flotation device, intermediate pool, more medium filter, active carbon filtering and clear water reserviors processing.Final qualified discharge.
Description
Technical field
The present invention relates to a kind of medical intermediate production waste water treatment process, belong to water treatment field.
Background technique
With significantly improving for China's people's living standard, pharmaceutical industry also shows fast-developing trend, currently, I
The state of development of state's pharmaceuticals industry shows the features such as number of the enterprise is more, scale is relatively small, the medicament categories of production are various.
Pharmacy procedure needs intermediate, therefore medicine intermediate chemical industry also flourishes, medicine intermediate chemical industry
Production waste water has the characteristics that pollutant concentration height, salinity height, complicated component, biodegradability is poor, is more toxic.It does not handle or locates
Manage it is not in place will not only aggravate Water Pollution Problem, more seriously threaten people's health.Most medicine intermediate is met at present
It is not in place to pre-processing, the efficiency of biochemical treatment is seriously limited, phenomena such as not up to standard is discharged.Therefore, difficult to degrade in processing
When medicine intermediate wastewater from chemical industry with high salt, stable high-efficiency pretreatment technology should be selected.Realize the processing up to standard of waste water simultaneously
Reduce the processing cost of waste water.
It is mainly chemical synthesis waste water that medical intermediate production waste water, which is divided into highly concentrated production waste water, includes intermediate, raw material
Medicine, salt, solvent etc., COD is up to tens of thousands of, complicated component, biodegradability are poor.It is different from high salt and mother liquor waste water and (refers to crystalline mother solution
Deng COD is up to 30-50 ten thousand).Aerobic activated sludge process processing is directlyed adopt, aeration time is long, and operating cost is high.It is difficult directly
Biochemical treatment qualified discharge.Traditional chemical precipitation and oxidation process is also unobvious to its treatment effect.So pharmaceuticals industry is useless
The processing of water has become one of problem in urgent need to solve.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of medical intermediate production waste water treatment process,
It is able to achieve stable water outlet qualified discharge, system running is at low cost.
To achieve the goals above, the technical solution of the present invention is as follows: a kind of medical intermediate production waste water treatment process,
It is characterized in that, is handled according to following process:
(1) production waste water is divided into highly concentrated production waste water and with high salt and mother liquor waste water, two kinds of waste water point by pretreatment process
Open collection；Described with high salt and mother liquor waste water is by pumping to the first cryogenic high pressure distillation still, and highly concentrated production waste water is through pumping
To the second cryogenic high pressure distillation still；What the first cryogenic high pressure distillation still and the second cryogenic high pressure distillation still distilled
Low boiling point organic solvent recycling, which is handed over, qualification processed in units, and remaining waste water enters comprehensive wastewater collecting pit；The comprehensive wastewater is received
The waste water of Ji Chi enters evaporator, removes and contains a large amount of salts substances in waste water, and crystal salt friendship has qualification processed in units, the steaming
The condensed water of hair device enters condensate liquid collecting pit；The waste water of the condensate liquid collecting pit enters Inner electrolysis pond, drops difficult in waste water
The organic matter of solution is decomposed into the small organic molecule of biodegradability, while removing the COD contained in waste waterCr、BOD5Equal pollutants
Matter；
The water outlet in the Inner electrolysis pond enters Fenton's reaction pond, and acid, Fenton reagent are added in the Fenton's reaction pond, into
Macromolecular substances difficult to degrade are decomposed into small-molecule substance by one step, while removing the COD in waste waterCr、BOD5, the pollution such as coloration
Substance；
The water that the Fenton's reaction pond comes out enters combination precipitation-air-flotation device, adds in the combination precipitation-air-flotation device
Enter alkali, PAC, PAM, removes a large amount of COD contained in waste waterCr、BOD5, the polluters such as SS；
(2) biochemical treatment process, the waste water come out from combination precipitation-air-flotation device enter the hydrolysis acid of biochemical treatment process
Change pond, the larger molecular organics contained in waste water in the hydrolysis acidification pool are broken down into small organic molecule, further mention
The biodegradability of high waste water, further removes CODCr、BOD5Equal polluters；
The waste water come out from the hydrolysis acidification pool is lifted into UASB anaerobic reactor through pump, and further removal is most of
CODCr、BOD5Equal organic pollution materials；
The water outlet of the UASB anaerobic reactor enters A/O biochemical treatment system, removes the COD in waste waterCr、BOD5, ammonia
The polluters such as nitrogen；The water outlet of the A/O biochemical treatment system enters secondary settling tank and carries out mud-water separation, removes SS, and described two is heavy
The partial sludge in pond flows back into A/O biochemical treatment system；
(3), advanced treating process, the clear liquid of the secondary settling tank enter the ABFT aeration and biological fluidisation of advanced treating process
Pond further removes CODCr、BOD5Equal polluters；
The water come out from the ABFT aeration biological fluidization pool enters efficient flocculating sedimentation basin, precipitates in the efficient flocculating
PAC, PAM are added in pond, removes the COD in waste waterCr、BOD5, the organic pollution materials such as SS；
The clear water of the efficient flocculating sedimentation basin enters rear end Fenton's reaction pond, is added in rear end Fenton's reaction pond
Acid, Fenton reagent further remove the COD in waste waterCr、BOD5, the polluters such as coloration；
The water come out from rear end Fenton's reaction pond enters rear end combination precipitation-air-flotation device；In the rear end, combination is heavy
Alkali, PAC, PAM are added in the air-floating apparatus of shallow lake, removes the COD contained in waste waterCr、BOD5, the polluters such as SS；
The water that combination precipitation-air-flotation device comes out from the rear end successively passes through more medium filter and active carbon filter
Enter clear water reserviors qualified discharge after filtering.
Using the above scheme, it first takes sub-prime classification to handle production waste water, remixes and pre-processed together.
Highly concentrated production waste water is lifted into the second cryogenic high pressure distillation still through pump, and the low boiling point organic solvent contained in waste water is divided
From solvent hands over qualified unit to be handled, and remaining waste water enters comprehensive wastewater collecting pit.With high salt and mother liquor waste water enters the
One cryogenic high pressure distillation still, the low boiling point organic solvent contained in waste water is separated, and solvent hands over qualified unit to carry out
Processing, remaining waste water enter comprehensive wastewater collecting pit.The waste water of comprehensive wastewater collecting pit passes through evaporator, Inner electrolysis pond, Fenton
Reaction tank, combination precipitation-air-flotation device complete pretreatment, the COD in waste waterCrIt is decreased obviously, salt content is decreased obviously, and ammonia nitrogen subtracts
Few, total phosphorus reduces, and biodegradability greatly improves.
Enter biochemical treatment process by the waste water of pretreatment process, the COD in waste waterCr、BOD5, the pollutants such as coloration contain
Step decline is measured, salt content further declines, and the polluters such as ammonia nitrogen, total phosphorus, coloration are substantially reduced, but the row of being not met by
Put standard.Advanced treating, energy qualified discharge steady in a long-term are eventually passed through, discharge standard meets " chemical synthesis class pharmaceuticals industry
Pollution discharge standard " GB21904-2008 requirement, be detailed in following table:
| COD | BOD | SS | Ammonia nitrogen | Total phosphorus | PH | Coloration |
| 100 | 20 | 50 | 20 | 1 | 6~9 | 50 |
In above scheme: the acid being added in the Fenton's reaction pond and rear end Fenton's reaction pond be inorganic acid, adjust pH to
3-4。
In above scheme: the acid is hydrochloric acid or sulfuric acid.
In above scheme: the alkali is piece alkali or lime, in the combination precipitation-air-flotation device and rear end combination precipitating gas
PH to 7-9 is adjusted in floating device.
In above scheme: rear end combination precipitation-air-flotation device come out water be introduced into intermediate pool, then recycle pump according to
It is secondary to be pumped into more medium filter and active carbon filter filtering.
In above scheme: the dross and sludge of the combination precipitation-air-flotation device, the sludge of UASB anaerobic reactor, two heavy
The excess sludge in pond, the sludge of efficient flocculating sedimentation basin, the sludge of rear end combination precipitation-air-flotation device and dross enter synthesis
The sludge of sludge concentration tank, the comprehensive sludge concentration tank is transported outward after dehydration device is dehydrated.
In above scheme: the supernatant of the comprehensive sludge concentration tank, the filtrate of dehydration device enter condensate liquid collecting pit.
In above scheme: the clear water reserviors are anti-by backwashing pump and the more medium filter and active carbon filter
It rinses water inlet to be connected, the backwashing water outlet of the more medium filter and active carbon filter is connected with intermediate pool.
The utility model has the advantages that pharmaceutical intermediate wastewater processing method of the invention is by pretreatment, biochemical treatment and advanced treating
System when pretreatment, first takes sub-prime classification to pre-process production waste water, remixes and handle together, improve waste water
Biodegradability improves waste water treatment efficiency.Biochemical treatment enters depth after hydrolysis acidification, UASB anaerobism, the processing of A/O system
Processing, finally makes stable water outlet qualified discharge.System running is simple, reliable, greatly reduces the cost input of enterprise, favorably
It is improved the economic and social benefits in enterprise.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
Embodiment 1
Medical intermediate production waste water influent quality is as follows:
As shown in Figure 1, medical intermediate production waste water treatment process is according to pretreatment process, biochemical treatment process and depth
Treatment process is handled.
Pretreatment process successively passes through the first cryogenic high pressure distillation still 1, the second cryogenic high pressure distillation still 2, comprehensive wastewater and receives
Collect pond 3, evaporator 4, condensate liquid collecting pit 5, Inner electrolysis pond 6, Fenton's reaction pond 7, the combination processing of precipitation-air-flotation device 8.
With high salt and mother liquor waste water and highly concentrated production waste water separate collection, are first separately handled.With high salt and mother liquor waste water is by pump
It is extracted into the first cryogenic high pressure distillation still 1, highly concentrated production waste water is through pumping to the second cryogenic high pressure distillation still 2.First cryogenic high pressure
The low boiling point organic solvent recycling that distillation still 1 and the second cryogenic high pressure distillation still 2 distill, which is handed over, qualification processed in units, remaining
Waste water enters comprehensive wastewater collecting pit 3.
Waste water in comprehensive wastewater collecting pit 3 is lifted into evaporator 4 through pump, removes and contains a large amount of salt objects in waste water
Matter, crystal salt hand over qualified processed in units, and condensed water enters condensate liquid collecting pit 5.
Waste water is lifted into Inner electrolysis pond 6 through pump, and acid adding (hydrochloric acid or sulfuric acid) adjusts pH to 3-4, is aerated simultaneously, will
Organic matter difficult to degrade is decomposed into the small organic molecule of biodegradability in waste water, removes the COD contained in waste waterCr、BOD5Deng
Polluter.
Through Inner electrolysis, treated that water outlet enters Fenton's reaction pond 7, is added inorganic acid in Fenton's reaction pond 7, hydrochloric acid or
Sulfuric acid adjusts pH to 3-4, and Fenton reagent is then added, and (in Fenton reagent, the amount of hydrogen peroxide is the 0.1%- of wastewater quality
0.5%, the ratio that adds of hydrogen peroxide and ferrous sulfate is 2:1-3:1), further macromolecular substances difficult to degrade are decomposed into small
Molecular substance, while removing the COD contained in waste waterCr、BOD5Equal polluters.
Through Fenton treated water outlet enter combination precipitation-air-flotation device 8, combination precipitation-air-flotation device 8 in alkali is added
(piece alkali or lime) adjusts pH to 7-9, and PAC, PAM is then added to big alumen ustum is generated, contains in removal waste water
CODCr、BOD5, the polluters such as SS.
Combined precipitation-air-flotation device 8 treated water outlet enter biochemical treatment system hydrolysis acidification pool 9.
The effluent quality of pretreatment system is as follows:
COD after pretreatment, in waste waterCrIt is decreased obviously, salt content is decreased obviously, and ammonia nitrogen is reduced, and total phosphorus reduces, can
Biochemical greatly improves.
Biochemical treatment process successively passes through hydrolysis acidification pool 9, UASB anaerobic reactor 10, A/O biochemical treatment system 11, two
Heavy pond 12 is handled.
Treated that water outlet enters hydrolysis acidification pool 9 for combined precipitation-air-flotation device 8, and the macromolecular contained in waste water is by water
Solution is small organic molecule, further increases the biodegradability of waste water, the COD contained in waste waterCr、BOD5Equal polluters are had
Effect removal.
Water outlet after hydrolysis acidification is lifted into UASB anaerobic reactor 10 through pump, goes in UASB anaerobic reactor 10
Except COD most in waste waterCr、BOD5Equal organic pollution materials.
Through UASB, treated that water outlet enters A/O biochemical treatment system 11, removes the COD that contains in waste waterCr、BOD5, ammonia
The polluters such as nitrogen.Muddy water mixed solution in 11 aerobic zone of A/O biochemical reaction system is back in anoxic zone by reflux pump, shape
At interior reflux, reflux ratio 200-800%.
A/O biochemical reaction system total hrt is 3-8 days, wherein anoxic zone 1-2 days, aerobic zone 2-6 days.
Through A/O biochemical treatment system treated water outlet enter secondary settling tank 12, carry out mud-water separation, remove waste water in contain
The polluters such as a large amount of SS.The partial sludge of secondary settling tank 12 flows back into the aerobic tank of A/O biochemical treatment system 11.
The effluent quality of biochemical treatment is as follows:
COD after biochemical treatment, in waste waterCrFurther decline, salt content further decline, and ammonia nitrogen is reduced, total phosphorus
It reduces, but is not met by discharge standard.
It is anti-that advanced treating process successively passes through ABFT aeration biological fluidization pool 13, efficient flocculating sedimentation basin 14, rear end Fenton
Answer pond 15, rear end combination precipitation-air-flotation device 16, intermediate pool 17, more medium filter 18, active carbon filtering 19 and clear water reserviors
20 processing.
12 supernatant of secondary settling tank enters ABFT aeration biological fluidization pool 13, removes in waste water and contains CODCr、BOD5Deng pollution
Substance.
Through ABFT, treated that water outlet enters efficient flocculating sedimentation basin 14, and PAC and PAM is added wherein to generating big alum
Flower removes the COD contained in waste waterCr、BOD5, the polluters such as SS.
Water outlet through coagulating kinetics enters rear end Fenton's reaction pond 15, and inorganic acid, hydrochloric acid and sulfuric acid is added, and adjusts
PH to 3-4 is saved, Fenton reagent is then added, and (in Fenton reagent, the amount of hydrogen peroxide is the 0.1%-0.5% of wastewater quality, dioxygen
The ratio that adds of water and ferrous sulfate is 2:1-3:1), remove the COD contained in waste waterCr、BOD5, the pollutants such as coloration
Matter.
Through treated in rear end Fenton's reaction pond 15, water outlet enters rear end combines precipitation-air-flotation device 16, and alkali is added (herein
Alkali is piece alkali or lime), pH to 7-9 is adjusted, time PAC and PAM is then added to a large amount of alumen ustum are generated, further removal is useless
The COD contained in waterCr、BOD5, the polluters such as SS.
Through precipitation-air-flotation, treated that water outlet enters intermediate 17 pond of water, and the waste water of intermediate pool 17 is lifted into more Jie through pump
Mass filter 18 removes the COD contained in waste waterCr、BOD5, SS, the polluters such as coloration.
Through more medium filter 18, treated that water outlet enters active carbon filter 19, further removes and contains in waste water
CODCr、BOD5, SS, qualified discharge after the polluters such as coloration.
Dross and sludge, the sludge of UASB anaerobic reactor 10, the residue of secondary settling tank 12 for combining precipitation-air-flotation device 8 are dirty
It is dense that mud, the sludge of efficient flocculating sedimentation basin 14, the sludge of rear end combination precipitation-air-flotation device 16 and dross enter comprehensive sludge
The sludge in contracting pond 21, comprehensive sludge concentration tank 21 is transported outward after the dehydration of dehydration device 22.The supernatant of comprehensive sludge concentration tank 21
Liquid, dehydration device 22 filtrate enter condensate liquid collecting pit 5.
Clear water reserviors 20 pass through the backwashing water import phase of backwashing pump and more medium filter 18 and active carbon filter 19
Even, the backwashing water of more medium filter 18 and active carbon filter 19 outlet is connected with intermediate pool 17.
Eventually pass through this system treated that water drain mass-energy stably reaches " chemical synthesis class pharmaceuticals industry water pollutant row
Put standard " GB21904-2008, it drains water quality and meets following table requirement.
| COD | BOD | SS | Ammonia nitrogen | Total phosphorus | pH | Coloration |
| 100 | 20 | 50 | 20 | 1 | 6~9 | 50 |
The present invention is not limited to the above embodiment, it will be understood by those skilled in the art that: do not departing from the present invention
Principle and objective in the case where a variety of change, modification, replacement and modification, the scope of the present invention can be carried out to these embodiments
It is defined by the claims and their equivalents.
Claims (8)
1. a kind of medical intermediate production waste water treatment process, which is characterized in that handled according to following process:
(1) production waste water is divided into highly concentrated production waste water and with high salt and mother liquor waste water by pretreatment process, and two kinds of waste water are separately received
Collection；Described with high salt and mother liquor waste water is by pumping to the first cryogenic high pressure distillation still, and highly concentrated production waste water is through pumping to institute
State the second cryogenic high pressure distillation still；The low boiling that the first cryogenic high pressure distillation still and the second cryogenic high pressure distillation still distill
Point organic solvent recycling, which is handed over, qualification processed in units, and remaining waste water enters comprehensive wastewater collecting pit；The comprehensive wastewater collecting pit
Waste water enter evaporator, remove and contain a large amount of salts substances in waste water, crystal salt friendship has qualification processed in units, the evaporator
Condensed water enter condensate liquid collecting pit；The waste water of the condensate liquid collecting pit enters Inner electrolysis pond, will be difficult to degrade in waste water
Organic matter is decomposed into the small organic molecule of biodegradability, while removing the COD contained in waste waterCr、BOD5Equal polluters；
The water outlet in the Inner electrolysis pond enters Fenton's reaction pond, acid, Fenton reagent is added in the Fenton's reaction pond, further
Macromolecular substances difficult to degrade are decomposed into small-molecule substance, while removing the COD in waste waterCr、BOD5, the pollutants such as coloration
Matter；
The water that the Fenton's reaction pond comes out enters combination precipitation-air-flotation device, is added in the combination precipitation-air-flotation device
Alkali, PAC, PAM remove a large amount of COD contained in waste waterCr、BOD5, the polluters such as SS；
(2) biochemical treatment process, the waste water come out from combination precipitation-air-flotation device enter the hydrolysis acidification pool of biochemical treatment process,
The larger molecular organics contained in waste water in the hydrolysis acidification pool are broken down into small organic molecule, further increase waste water
Biodegradability, further remove CODCr、BOD5Equal polluters；
The waste water come out from the hydrolysis acidification pool is lifted into UASB anaerobic reactor through pump, further removes most
CODCr、BOD5Equal organic pollution materials；
The water outlet of the UASB anaerobic reactor enters A/O biochemical treatment system, removes the COD in waste waterCr、BOD5, ammonia nitrogen etc.
Polluter；The water outlet of the A/O biochemical treatment system enters secondary settling tank and carries out mud-water separation, removes SS, the secondary settling tank
Partial sludge flows back into A/O biochemical treatment system；
(3), advanced treating process, the clear liquid of the secondary settling tank enter the ABFT aeration biological fluidization pool of advanced treating process, into
One step removes CODCr、BOD5Equal polluters；
The water come out from the ABFT aeration biological fluidization pool enters efficient flocculating sedimentation basin, in the efficient flocculating sedimentation basin
PAC, PAM is added, removes the COD in waste waterCr、BOD5, the organic pollution materials such as SS；
The clear water of the efficient flocculating sedimentation basin enters rear end Fenton's reaction pond, in rear end Fenton's reaction pond be added acid,
Fenton reagent further removes the COD in waste waterCr、BOD5, the polluters such as coloration；
The water come out from rear end Fenton's reaction pond enters rear end combination precipitation-air-flotation device；Precipitating gas is combined in the rear end
Alkali, PAC, PAM is added in floating device, removes the COD contained in waste waterCr、BOD5, the polluters such as SS；
The water that combination precipitation-air-flotation device comes out from the rear end successively passes through more medium filter and active carbon filter filtering
Enter clear water reserviors qualified discharge afterwards.
2. medical intermediate production waste water treatment process according to claim 1, it is characterised in that: the Fenton's reaction pond and
The acid being added in the Fenton's reaction pond of rear end is inorganic acid, adjusts pH to 3-4.
3. medical intermediate production waste water treatment process according to claim 2, it is characterised in that: the acid is hydrochloric acid or sulphur
Acid.
4. any one of -3 medical intermediate production waste water treatment process according to claim 1, it is characterised in that: the alkali is
Piece alkali or lime adjust pH to 7-9 in the combination precipitation-air-flotation device and rear end combination precipitation-air-flotation device.
5. medical intermediate production waste water treatment process according to claim 4, it is characterised in that: combine precipitation-air-flotation in rear end
The water that device comes out is introduced into intermediate pool, then pump is recycled successively to be pumped into more medium filter and active carbon filter mistake
Filter.
6. medical intermediate production waste water treatment process according to claim 5, it is characterised in that: the combination precipitation-air-flotation
The dross and sludge of device, the sludge of UASB anaerobic reactor, the excess sludge of secondary settling tank, efficient flocculating sedimentation basin sludge,
The sludge of precipitation-air-flotation device is combined in rear end and dross enters comprehensive sludge concentration tank, the sludge of the comprehensive sludge concentration tank
It is transported outward after dehydration device is dehydrated.
7. medical intermediate production waste water treatment process according to claim 6, it is characterised in that: the comprehensive sludge condensation
The supernatant in pond, the filtrate of dehydration device enter condensate liquid collecting pit.
8. medical intermediate production waste water treatment process according to claim 7, it is characterised in that: the clear water reserviors pass through anti-
Flushing pump is connected with the backwashing water import of the more medium filter and active carbon filter, the more medium filter and work
Property carbon filter backwashing water outlet be connected with intermediate pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896490.0A CN110526517A (en) | 2019-09-20 | 2019-09-20 | A kind of medical intermediate production waste water treatment process |
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| CN111410980A (en) * | 2020-04-29 | 2020-07-14 | 湖南叶林环保科技有限公司 | Organic hazardous waste treatment system and method |
| CN111470716A (en) * | 2020-04-15 | 2020-07-31 | 河南恒安环保科技有限公司 | Pretreatment method for high-salt high-ammonia nitrogen wastewater in rebamipide production |
| CN111470718A (en) * | 2020-04-15 | 2020-07-31 | 河南恒安环保科技有限公司 | Comprehensive wastewater treatment method for bismuth pectin bulk drug, acridone acetic acid, acyclovir and thiodipropionate medical intermediate |
| CN111620497A (en) * | 2020-04-29 | 2020-09-04 | 广东闻扬环境科技有限公司 | Method and system for treating Enbipu pharmaceutical wastewater |
| CN111908723A (en) * | 2020-08-17 | 2020-11-10 | 安徽皖欣环境工程有限公司 | Thiophanate-methyl wastewater treatment system |
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| CN113698043A (en) * | 2021-09-08 | 2021-11-26 | 南京东大能源工程设计院有限公司 | Resource utilization and advanced treatment method for raw material medicine production process wastewater |
| CN114315041A (en) * | 2021-12-31 | 2022-04-12 | 宁夏万博生物科技有限公司 | Process system for efficiently treating wastewater |
| CN115367952A (en) * | 2022-07-19 | 2022-11-22 | 江苏绿境生态环境科技股份有限公司 | High-salinity sewage accident sewage and low-salinity high-concentration sewage comprehensive treatment system and method |
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| CN111620497A (en) * | 2020-04-29 | 2020-09-04 | 广东闻扬环境科技有限公司 | Method and system for treating Enbipu pharmaceutical wastewater |
| CN111908723A (en) * | 2020-08-17 | 2020-11-10 | 安徽皖欣环境工程有限公司 | Thiophanate-methyl wastewater treatment system |
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| CN113636726B (en) * | 2021-09-07 | 2022-10-28 | 湖南中车环境工程有限公司 | Zero-discharge treatment process for abamectin production wastewater |
| CN113698043A (en) * | 2021-09-08 | 2021-11-26 | 南京东大能源工程设计院有限公司 | Resource utilization and advanced treatment method for raw material medicine production process wastewater |
| CN114315041A (en) * | 2021-12-31 | 2022-04-12 | 宁夏万博生物科技有限公司 | Process system for efficiently treating wastewater |
| CN115367952A (en) * | 2022-07-19 | 2022-11-22 | 江苏绿境生态环境科技股份有限公司 | High-salinity sewage accident sewage and low-salinity high-concentration sewage comprehensive treatment system and method |
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