CN107265757A - Method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water - Google Patents

Method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water Download PDF

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Publication number
CN107265757A
CN107265757A CN201710439316.4A CN201710439316A CN107265757A CN 107265757 A CN107265757 A CN 107265757A CN 201710439316 A CN201710439316 A CN 201710439316A CN 107265757 A CN107265757 A CN 107265757A
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waste water
strong oxdiative
water
circulation
duration
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李春生
李园
王悦排
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Hebei Zhuo Environment Technology Co Ltd
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Hebei Zhuo Environment Technology Co Ltd
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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
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • 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
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/343Nature 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • C02F3/30Aerobic and anaerobic processes
    • 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
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The present invention relates to the method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water, belong to technical field of sewage, the waste water of collection is squeezed into regulating reservoir first and carries out water quality adjustment and runoff investigation by this method, subsequent waste water squeezes into multidimensional Strong oxdiative equipment the multidimensional Strong oxdiative for carrying out two-stage, it can directly be degraded by electrode during this and simple organic matter and the organic matter for being difficult to degrade be decomposed into degradable simple organic, the free metal ion produced after heavy metal in waste water and salt ionization is collected by electrode adsorption, the Strong oxdiative of electrode can be decomposed antibiotic, it is avoided to anaerobism and the biochemical inhibitory action caused, particulate matter in waste water is separated by flocculation sediment after Strong oxdiative, then organic pollution is consumed by anaerobic reaction and level Four biochemical reaction, qualified processing water is obtained finally by further flocculation sediment and adsorption filtration, applied to industrial thermal circulation water, the occasion such as landscape water spray and urban road sprinkling.

Description

Method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water
Technical field
The invention belongs to technical field of sewage, and in particular to based on Strong oxdiative and circulation biochemical treatment medicine intermediate The method for producing waste water.
Background technology
So-called medicine intermediate is some for some industrial chemicals and chemical products in medicine synthesis process. The molecular structure of pharmaceutical chemicals is typically complex, and synthesis step is also more, and that is discharged in pharmacy procedure is a large amount of poisonous and harmful Waste water seriously endangers the health of people, and chemical agent waste water is mostly high concentrated organic wastewater, contains miscellaneous chemistry Material, such as heterocycle compound, compound fragrant hydrocarbon, toxic inorganic thing and ethanol, benzene, chloroform organic solvent, waste water Middle COD reaches tens of thousands of or even hundreds of thousands milligrams per liter, and the composition of waste water is extremely complex, and biodegradability is poor, directly using aerobic Active sludge treatment, aeration time is long, and operating cost is high, it is difficult to directly biochemical treatment qualified discharge.Traditional chemical precipitation and Oxidizing process to its treatment effect also not substantially, so the processing of pharmaceutical intermediate wastewater turn into urgent problem to be solved it One.
Pharmaceutical intermediate wastewater mainly shows following characteristics:Pollutant kind is more, complicated component, and waste strength is high, due to Production process is more, and raw material dosage is big, and raw material availability is relatively low, there is the residual of tens times to hundreds of times medicine yield in production process Stay raw material highly polluted environment in the form of waste water;Contain large amount of complex toxicant, biodegradability extreme difference.These features are all given Processing brings very big difficulty.
The content of the invention
Instant invention overcomes the deficiencies in the prior art, there is provided one kind is based on Strong oxdiative and circulates in the middle of biochemical treatment medicine The method that body produces waste water, this method can remove the organic matter of difficult degradation, noxious material and antibiotic in waste water, be follow-up Anaerobic bacteria and aerobic bacteria provide suitable environment, and multidimensional Strong oxdiative improves medicine with reference to follow-up anaerobic reaction and biochemical reaction Intermediate produces the treatment effect of waste water, and process cycle is also substantially reduced, and the processing water finally given can stably reaching standard Discharge.
The present invention concrete technical scheme be:
Method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water, key point is, methods described bag Include following steps:
A, medical intermediate production waste water is collected and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir;
B, the waste water after regulation is squeezed into in two multidimensional Strong oxdiative equipment being sequentially connected progress two-stage multidimensional Strong oxdiative, Multidimensional Strong oxdiative equipment is the two-dimentional electrolytic cell filled with granular electrode material between electrode, and power frequency is 50-60KHz, is continued Time 25-35min, then oxidizer, flocculation aid into the waste water after Strong oxdiative, oxidant is hydrogen peroxide, and addition is useless 1/1000th 2/5000ths to thousand of water, flocculation aid is PAM, and addition is 4th/20000th to ten thousand/10000ths of wastewater flow rate, Flocculation sediment duration 2.5-3.5H;
C, the waste water precipitated after separation squeezed into anaerobic reaction is carried out in anaerobic pond, duration 12-16H, temperature is 30- 33 degrees Celsius;
Waste water after D, anaerobic reaction squeezes into four circulation biochemical systems being sequentially connected and carries out level Four circulation biochemistry, circulation Biochemical system includes aeration tank, sedimentation basin and activating tank, and waste water enters the sludge produced behind aeration tank and first squeezes into activating tank Row activation, the sludge after activation is returned in aeration tank, and the aeration tank mesophytization duration is 8-10H, sludge reflux amount 80- 100%, sludge concentration 8000mg/L, the waste water after aeration is finished are squeezed into sedimentation basin, precipitate duration 3.5-4H, precipitation Sludge is first squeezed into activating tank and activated, and the sludge after activation is returned in aeration tank, and sludge reflux amount 80-100%, sludge is dense Spend 8000mg/L;
E, advanced treating is carried out to the waste water after circulation biochemical treatment, first plus coagulant and flocculation aid, coagulant is PAC, Addition is 4th/2000th to thousand/1000ths of wastewater flow rate, and flocculation aid is PAM, and addition is wastewater flow rate 2/10000ths to very much Four, coagulating sedimentation duration 2.5-3.5H, then carry out integrate adsorption filtration, duration 10-20min finally gives Qualified processing water.
In described step A, water quality adjustment includes pH, SS, COD and NH3-N regulation, regulation to pH, SS, COD with And NH3-N value stabilizations.
In described step B, the addition of the hydrogen peroxide is the one thousandth of wastewater flow rate, and the flocculation aid addition is 3/10000ths of wastewater flow rate, flocculation sediment duration 3H.
In described step E, coagulant addition is 3/1000ths of wastewater flow rate, and flocculation aid addition is the ten thousand of wastewater flow rate / tri-.
The beneficial effects of the invention are as follows:Method in the present invention will be difficult to what is degraded by two-stage multidimensional Strong oxdiative in waste water The simple organic that organic matter is decomposed and obtains decomposition is directly degraded, including heterocycle compound and aromatic hydrocarbon Nitration reaction generation nitrate occurs for class compound, wherein compound fragrant hydrocarbon, and nitro is available for the benzene formation in waste water Oxygen bacterium consumption nitro and form nitrogen, anode generation Strong oxdiative particle there is significant oxygenolysis to antibiotic, Good environment is provided for the aerobic bacteria in the anaerobic bacteria in follow-up anaerobic reaction and circulation biochemical reaction, promotes the work of flora Property, the effect of anaerobic reaction and biochemical reaction is improved, shortens the reaction time, in addition, electrode can also be in absorptive collection waste water The heavy metals such as mercury, copper class, multidimensional Strong oxdiative is during degradation of organic substances, and the dissolved oxygen content in waste water is gradually reduced, and is Follow-up anaerobic reaction provides suitable environment, and the reacted waste water of Strong oxdiative eliminates the huge sum of money in waste water by flocculation sediment Category, inorganic compound, are then carried out anaerobic reaction by waste water, organic dirt in waste water are consumed using the metabolism of anaerobic bacteria Thing is contaminated, while the process of anaerobic reaction also improves the biodegradability of waste water, the level Four circulation biochemistry subsequently carried out is by aerobic Organic pollution in the metabolic consumption waste water of bacterium, qualified processing is obtained after then carrying out flocculation sediment and adsorption filtration Water.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of method in the present invention.
Embodiment
The present invention relates to the method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water, the method being related to Including the regulation process in regulating reservoir, two-stage multidimensional Strong oxdiative, flocculation sediment, the anaerobic reaction of anaerobic pond, level Four circulation it is biochemical, Flocculation sediment and adsorption filtration, multidimensional Strong oxdiative process is at least one of electro-catalysis, electric flocculation or electric Fenton, method Specific operation process is illustrated by specific embodiment.
Specific embodiment, as shown in figure 1, the method for processing medical intermediate production waste water specifically includes following steps:
A, medical intermediate production waste water is collected and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir, should Medicine intermediate includes the medicine intermediate of cardiovascular diseases, anti inflammation and heat resolution class and endocrine class medicine, when runoff investigation continues Between 20H, the volume of regulating reservoir is designed according to the treating capacity of the residence time, the actual yield of waste water and waste water, cures The treating capacity of medicine intermediate production waste water is 30-50m3/ d, water quality adjustment includes pH, SS, COD and NH3-N regulation, regulation Stable state is reached to These parameters;
B, the waste water after regulation is squeezed into progress two-stage multidimensional Strong oxdiative, multidimensional in two connected multidimensional Strong oxdiative equipment Equipment used in Strong oxdiative is that granular working electrode is loaded between the electrode of conventional two-dimensional electrolytic cell, and granular working electrode is straight Footpath 5-10mm graphite particle, forms multidimension electrode structure, by the direct degradation of organic substances of anode reaction, or passes through sun after filling Pole reaction generation Strong oxdiative particle, such as hydroxyl, oxygen, hydrogen peroxide, hydroxyl radical free radical, the strong oxidizer of the class of ozone one, These strong oxidizers carry out oxidative degradation without chain reaction selectively quickly occurs with the organic pollution in waste water, are degraded to two Carbonoxide and water, it is more thorough that this biodegrading process decomposes organic matter, and advantage is:1st, these are filled in the grain between both positive and negative polarity Shape working electrode improves mass transfer in liquid phase efficiency and current efficiency;2nd, electro transfer is only carried out between electrode and waste water component, The hydroxyl radical free radical that oxidation reaction is produced by system oneself is carried out, it is not necessary to add decoction, non-secondary pollution;3rd, water pollution is entered Thing concentration is unrestricted, and COD concentration may be up to hundreds thousand of mg/L, and significantly, percent of decolourization is up to more than 50-80% for decolouring, detoxification effect, The course of reaction of organic pollutant degradation processing is rapid, and retention time of sewage is short, it is only necessary to 30min, and required equipment volume is small;4th, may be used Ammonia nitrogen, total phosphorus and the colourity in waste water are efficiently removed simultaneously;5th, reaction condition is gentle, is carried out under normal temperature and pressure, and operation is flexible, can Reaction condition is adjusted at any time by changing voltage, electric current, and controllability is good;6th, floor space is small, and the completion time of project is short, operating cost It is low;7th, non-stripping property DSA anodes, electrodeless burn into problem of passivation, with efficient, long-life feature;
The power frequency of multidimensional Strong oxdiative is 50-60KHz, duration 30min, passes through electrode during multidimensional Strong oxdiative Degrade and simple organic matter and the organic matter for being difficult to degrade is decomposed into simple organic, it is difficult to which the organic matter of degraded includes Compound fragrant hydrocarbon, it occurs nitration reaction generation nitro, and nitro is available for the nitre that aerobic bacteria is consumed with the benzene formation in waste water Base benzene is so as to remove the benzene in waste water, at the same time, and the Strong oxdiative particle of anode generation has significant oxidation point to antibiotic Solution is acted on, and good environment is provided for the aerobic bacteria in the anaerobic bacteria in follow-up anaerobic reaction and circulation biochemical reaction, it is to avoid Inhibitory action of the antibiotic to flora, promotes the activity of flora, improves the effect of anaerobic reaction and biochemical reaction, shortens reaction Time, in addition, the gold dissociated after the heavy metal such as mercury, chromium, copper class that electrode can also be in absorptive collection waste water and salt ionization Belong to ion, multidimensional Strong oxdiative is during degradation of organic substances, and the dissolved oxygen content in waste water is gradually reduced, and is follow-up anaerobism Reaction provides suitable environment, after multidimensional Strong oxdiative terminates, oxidizer, flocculation aid into waste water, and oxidant is hydrogen peroxide, Addition is the one thousandth of waste water weight in the step, and flocculation aid is PAM, and addition is that waste water weight is very much in the step Three, flocculation sediment duration 3H, suspended particulate, heavy metal and other debris in waste water are gathered into the flocculation of separability Body, in accumulation process, floccule body can also adsorb pigment and free metal ion in waste water, and the absorption of metal ion is gone The living environment of follow-up anaerobic bacteria and aerobic bacteria, the absorption of pigment are influenceed except the salt avoided to greatest extent in waste water is recombined Remove and reduce the colourity of waste water to greatest extent, the multidimensional Strong oxdiative of two-stage can remove having for difficult degradation in waste water to greatest extent Machine thing, heavy metal and benzene, it is to avoid the exceeded discharge caused of residual is unqualified;
C, flocculation sediment is separated after waste water squeeze into anaerobic reaction carried out in anaerobic pond, duration 14H, temperature is 32 Degree Celsius, using the effect of anaerobic bacteria, organic matter is occurred hydrolysis, acidifying and methanation, remove the organic matter remained in sewage, The biodegradability of sewage is improved simultaneously, is conducive to follow-up biochemical treatment, wherein, the anaerobic degradation process of macromolecule organic can To be divided into four-stage:(complicated non-solubility polymer is converted into simple dissolubility monomer or dimerization to hydrolysis stage The process of body), (organic compound had both been also the biodegradation process of electron donor as electron acceptor to fermentation stage, herein During dissolved organic matter be converted into end productses based on volatile fatty acid, zymophyte is also closed using moieties Cheng Xin cellular material, compared to the sewage disposal process without fermentation process, reduces sludge quantity to greatest extent), production acetic acid rank Section (product on last stage is further converted to acetic acid, hydrogen, carbonic acid and new cellular material by hydrogen-producing acetogens) and production Methane phase (acetic acid, hydrogen, carbonic acid, methane and methanol are converted into methane, carbon dioxide and new cellular material), passes through In the aforementioned four stage, macromolecule organic in waste water is decomposed into small molecule, removes the organic matter in waste water, reduce subsequent bio The biological load of processing simultaneously improves its biochemical, promotes the raising of biochemical effects;
Waste water after D, anaerobic reaction, which is squeezed into four biochemical systems being sequentially connected, carries out level Four circulation biochemistry, department of biochemistry System includes aeration tank, sedimentation basin and activating tank, and waste water enters aeration tank mesophytization duration 9H, and the sludge of generation first squeezes into work Change and activated in pond, the sludge after activation is returned in aeration tank, sludge reflux amount 80-100%, sludge concentration 8000mg/L, Waste water after aeration is finished is squeezed into sedimentation basin, precipitates duration 3.5-4H, and the sludge of precipitation, which is first squeezed into activating tank, to be carried out Activation, the sludge after activation is returned in aeration tank, and sludge reflux amount 80-100%, sludge concentration 8000mg/L are followed by level Four Ring is biochemical, and the organic pollution remained in waste water is consumed to a stable reduced levels, reaches discharge standard;
E, advanced treating is carried out to the waste water after circulation biochemical treatment, first plus coagulant and flocculation aid, coagulant is PAC, Addition is 3/1000ths of waste water weight in the step, and flocculation aid is PAM, and addition is that waste water weight is very much in the step Three, coagulating sedimentation duration 3H, the suspension remained in waste water and charged ion are subjected to aggregation agglomerating, then carried out comprehensive Adsorption filtration is closed, duration 15min finally gives qualified processing water.
After method is handled medical intermediate production waste water in the present invention, it discharges heavy metal, heterocyclic in water Compound, compound fragrant hydrocarbon, benzene and antibiotic content obtain height and eliminated, it is to avoid existing handling process processing heel row The exceeded ambient influnence caused of a certain composition in discharging water, meet surrounding enviroment can bearing capacity, realize good environment can Sustainable development, the water quality and colourity of the discharge water after this method processing is preferable, can be used for industrial thermal circulation water, landscape spray The occasion such as water and urban road sprinkling, will not be impacted to human body and plant.

Claims (4)

1. the method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water, it is characterised in that methods described bag Include following steps:
A, medical intermediate production waste water is collected and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir;
B, the waste water after regulation is squeezed into in two multidimensional Strong oxdiative equipment being sequentially connected progress two-stage multidimensional Strong oxdiative, multidimensional Strong oxdiative equipment is the two-dimentional electrolytic cell filled with granular electrode material between electrode, and power frequency is 50-60KHz, duration 25-35min, then oxidizer, flocculation aid into the waste water after Strong oxdiative, oxidant is hydrogen peroxide, and addition is wastewater flow rate 1/1000th 2/5000ths to thousand, flocculation aid is PAM, and addition is 4th/20000th to ten thousand/10000ths of wastewater flow rate, flocculation Precipitate duration 2.5-3.5H;
C, the waste water precipitated after separation squeezed into anaerobic reaction is carried out in anaerobic pond, duration 12-16H, temperature is taken the photograph for 30-33 Family name's degree;
Waste water after D, anaerobic reaction squeezes into four circulation biochemical systems being sequentially connected and carries out level Four circulation biochemistry, and circulation is biochemical System includes aeration tank, sedimentation basin and activating tank, and waste water, which enters the sludge that produces behind aeration tank, first to be squeezed into activating tank and lived Change, the sludge after activation is returned in aeration tank, the aeration tank mesophytization duration is 8-10H, sludge reflux amount 80-100%, dirt Mud concentration 8000mg/L, the waste water after aeration is finished is squeezed into sedimentation basin, precipitates duration 3.5-4H, and the sludge of precipitation is first beaten Enter in activating tank and activated, the sludge after activation is returned in aeration tank, sludge reflux amount 80-100%, sludge concentration 8000mg/L;
E, advanced treating is carried out to the waste water after circulation biochemical treatment, first plus coagulant and flocculation aid, coagulant is PAC, addition Measure as 4th/2000th to thousand/1000ths of wastewater flow rate, flocculation aid is PAM, addition for wastewater flow rate 20000 to ten thousand/10000ths/ Four, coagulating sedimentation duration 2.5-3.5H, then carry out integrating adsorption filtration, duration 10-20min finally gives conjunction The processing water of lattice.
2. the method for Strong oxdiative according to claim 1 and circulation biochemical treatment medical intermediate production waste water, its feature Be, in described step A, water quality adjustment includes pH, SS, COD and NH3-N regulation, regulation to pH, SS, COD and NH3-N value stabilizations.
3. the method for Strong oxdiative according to claim 1 and circulation biochemical treatment medical intermediate production waste water, its feature It is, in described step B, the addition of the hydrogen peroxide is the one thousandth of wastewater flow rate, and the flocculation aid addition is useless 3/10000ths of water, flocculation sediment duration 3H.
4. the method for Strong oxdiative according to claim 1 and circulation biochemical treatment medical intermediate production waste water, its feature Be, in described step E, coagulant addition be wastewater flow rate 3/1000ths, flocculation aid addition be wastewater flow rate very much Three.
CN201710439316.4A 2017-06-12 2017-06-12 Method based on Strong oxdiative and circulation biochemical treatment medical intermediate production waste water Pending CN107265757A (en)

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