CN110342744A - A kind of bioremediation of pyridine and its derivatives production waste water - Google Patents

A kind of bioremediation of pyridine and its derivatives production waste water Download PDF

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Publication number
CN110342744A
CN110342744A CN201910660069.XA CN201910660069A CN110342744A CN 110342744 A CN110342744 A CN 110342744A CN 201910660069 A CN201910660069 A CN 201910660069A CN 110342744 A CN110342744 A CN 110342744A
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waste water
abr
sbr
pyridine
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姚红樱
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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
    • 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
    • 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
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • 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
    • C02F2101/34—Organic compounds containing oxygen
    • 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
    • C02F2101/34—Organic compounds containing oxygen
    • C02F2101/345—Phenols
    • 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
    • C02F2101/38—Organic compounds containing nitrogen
    • 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
    • C02F2101/40—Organic compounds containing sulfur
    • 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
    • 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
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/341—Consortia of bacteria

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

Abstract

The invention discloses a kind of bioremediations of pyridine and its derivatives production waste water, and treatment effeciency is high, at low cost, while waste water can be produced by bioanalysis reliable treatments pyridine and its derivatives, and treatment effect is more excellent compared to traditional biological method.The present invention includes: (1) the civil construction stage: requiring to build ABR, SBR, denitrification biochemistry pool and mating structures, and pipe laying and equipment according to technique；(2) proprietary bio-carrier adds the stage: requiring to add proprietary bio-carrier to ABR, SBR and denitrification pond according to technique；(3) the compound bacteria microorganism of EMO adds the activation stage: activating the microorganism of ABR, SBR and denitrification pond respectively as requested, and adds to ABR, SBR and denitrification pond；(4) tame the stage: ABR fills it up with waste water in pond, plays self-loopa, and SBR is added portionwise waste water and is aerated, and waste water is filled it up in denitrification pond, plays self-loopa and is spaced aeration；(5) operation phase: after the completion of microbial acclimation, entire technique starts continuous operation.

Description

A kind of bioremediation of pyridine and its derivatives production waste water
Technical field
The present invention relates to the bioremediations of pyridine and its derivatives production waste water, for raw to pyridine and its derivatives Produce the biological treatment purification of waste water.
Background technique
Pyridine and pyridine derivate are a kind of highly important fine chemical material or product, and it is molten to be widely used in industry The fields such as agent, medicine, pesticide, feed, dyestuff are known as " chip " of heterocyclic medicine, pesticide and veterinary drug.Pyridine is usually used in giving birth to Pesticides and the intermediates such as chlopyrifos, paraquat, Bi Kecao, picloram, fluroxypramide are produced, DYE PRODUCTION is also used for.In pyridine waste water Often containing pyridines and derivatives such as alkyl pyridine, haloperidid, aminopyridine, picolinic acids.
The pyridines structure of matter is stablized, and difficult to degrade, existing processing method is main are as follows: extraction, absorption, rectifying etc..Such as: it is public The number of opening is improvement and the recycling side that CN101235014A Chinese invention patent document discloses that a kind of 2-aminopyridine produces waste water Method, by the isolated water phase of hydrolyzed waste water and oily phase, oil is mutually distilled to recover 2-aminopyridine, burning residual dregs；Water phase cold analysis recycling Salt, residual filtrate cross biochemical treatment after resin adsorption.The salt that this method is with strong points, recycles needs to recrystallize, the 2- of distillation recovery Aminopyridine purity is not high.The Chinese invention patent document of Publication No. CN101074211A discloses a kind of processing high concentration pyrrole The method of pyridine waste water, by rectifying, obtained crude pyridine is through extraction and recovery pyridine.The method is directed to medical pyridine waste water, ingredient list One, recovery value is high, but extraction processing program is complicated.The Chinese invention patent document of Publication No. CN102765850A discloses The treatment process of a kind of trichloro pyridyl sodium alcoholate and chlopyrifos production waste water, concentrate after waste water evaporative desalination is burned, condensation Aquaticization, energy consumption is high for the method, and the salt of abjection carries pyridine type organic secretly, need to post-process or do fixed-end forces, and burning is also easy to produce two Secondary pollution.The Chinese invention patent document of Publication No. CN102923917A is disclosed a kind of handled using microorganism Co metabolism and contained The processing method and system of pyridine and pyridine derivate waste water.But pyridines waste water contains mostly compared with high salt, at the method It must be diluted before reason, the residence time is long, needs to post-process.The hair of Publication No. CN105000616A and CN104896487A Bright to disclose the method for burning disposal pyridine waste water, incineration method energy consumption is high, pollution is big.
For this purpose, we constantly seek a kind of biological treatment that can handle middle and high concentration pyridine and its derivatives production waste water Method, to achieve the purpose that economic quick processing pyridine and its derivatives production waste water.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing middle and high concentration pyridine And its bioremediation of derivative production waste water, treatment effeciency is high, and it is at low cost, while bioanalysis reliable treatments can be passed through Pyridine and its derivatives produce waste water, and treatment effect is more excellent compared to traditional biological method.
In order to achieve the above object, the present invention is achieved by the following scheme:
A kind of bioremediation of pyridine and its derivatives production waste water, includes 5 steps: civil construction stage, specially Have that bio-carrier adds the stage, the compound bacteria microorganism of EMO adds activation stage, domestication stage, operation phase；Specific steps are such as Under:
(1) the civil construction stage: requiring to build ABR, SBR, denitrification biochemistry pool and mating structures according to technique, and Pipe laying and equipment；ABR, SBR and denitrification biochemistry pool include two groups of ABR, SBR and a denitrification pond, two groups of ABR, SBR Respectively ABR1, SBR1；ABR2,SBR2；Every group of ABR, SBR connect, and intermediate pool 1 is arranged between two groups of ABR, SBR biochemistry pools；
(2) proprietary bio-carrier adds the stage: requiring to add proprietary biology load to ABR, SBR and denitrification pond according to technique Body；
(3) the compound bacteria microorganism of EMO adds the activation stage: activating the micro- of ABR, SBR and denitrification pond respectively as requested Biology, and added to ABR, SBR and denitrification pond；
(4) tame the stage: ABR fills it up with waste water, plays self-loopa, and SBR is added portionwise waste water and is aerated, and denitrification pond is filled it up with useless Water plays self-loopa and is spaced aeration；
(5) operation phase: after the completion of microbial acclimation, entire technique starts continuous operation, monitors each biochemistry pool daily Inlet and outlet water index, until meeting processing requirement completes a process flow；
In the step (1), build the conditioning tank for deploying waste water first, conditioning tank be sequentially connected ABR1, SBR1, in Between pond 1, ABR2, SBR2, intermediate pool 2, denitrification pond, coagulative precipitation tank and clear water reserviors；
The conditioning tank, ABR1, SBR1, ABR2, SBR2, denitrification pond, mixed precipitation pond are also connected by bypass line To sludge concentration tank；Pump is set between intermediate pool 1 and ABR2, setting pump I between intermediate pool 2 and denitrification pond；Denitrification pond two It is arranged on the connecting line of side for pipeline substance on rear side of denitrification pond to be pumped to the pump II into pipeline on front side of denitrification pond.
As a kind of preferred embodiment of the invention: the coagulative precipitation tank is connected with for adding PAM's and PAC PAM tank and PAC tank.
As a kind of preferred embodiment of the invention: influent COD controls within 7000mg/L, and total nitrogen concentration control exists Within 800mg/L, pyridine concentration is controlled within 60mg/L；
As a kind of preferred embodiment of the invention: water outlet COD≤500mg/L, total nitrogen≤50mg/L, pyridine≤1mg/ L has reached industrial wastewater discharge standard.
As a kind of preferred embodiment of the invention: the compound bacteria microorganism of EMO only need to be added once, without adding and answering It is strong；Bio-carrier only need to be added once.
The medicine have the advantages that
The present invention is by using EMO compound bacteria microbial technique and proprietary bio-carrier and ABR1+SBR1+ABR2+SBR2+ The biochemical treatment of the EMO biochemical treatment system of denitrification (such as Fig. 1) composition, influent COD control within 7000mg/L, and total nitrogen is dense Within 800mg/L, pyridine concentration is controlled within 60mg/L for degree control.The COD removal rate of waste water is up to 93%, nitrogen removal rate Reach 94%, pyridine removal rate reaches 98%, has reached industrial wastewater discharge standard, and engineering practice shows the steady of this process Qualitative and operability.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of specific embodiment of the invention.
Specific embodiment
The specific embodiment of the invention is described with reference to the accompanying drawings and embodiments:
As shown in Figure 1, it illustrates a specific embodiment of the invention, as shown in Figure 1, the invention discloses a kind of uses Biochemical method pyridine and its derivatives produce the process of waste water, this method are as follows: by using the compound bacteria microorganism skill of EMO The life of the EMO biochemical treatment system of art and proprietary bio-carrier and ABR1+SBR1+ABR2+SBR2+ denitrification (such as Fig. 1) composition Change processing, influent COD control within 7000mg/L, and total nitrogen concentration controls within 800mg/L, and the control of pyridine concentration exists Within 60mg/L, for the COD removal rate of waste water up to 93%, nitrogen removal rate reaches 94%, and pyridine removal rate reaches 98%, reaches Industrial wastewater discharge standard, engineering practice show the stability and operability of this process.
Specifically, the present invention is using EMO compound bacteria microbial technique and proprietary bio-carrier and ABR1+SBR1+ABR2+ The biochemical treatment system of SBR2+ denitrification composition.Influent COD controls within 7000mg/L, and total nitrogen concentration is controlled in 800mg/L Within, pyridine concentration controls within 60mg/L, is discharged COD≤500mg/L, total nitrogen≤50mg/L, and pyridine≤1mg/L reaches Industrial wastewater discharge standard.
The compound bacteria microorganism of EMO of the invention is only with once adding, without adding and rejuvenation；Bio-carrier is proprietary biology Carrier and only with once adding.
To sum up, the present invention relates to a kind of pyridine and its derivatives production biological process of wastewater treatment method technical field, More particularly to it is a kind of anti-by using EMO compound bacteria microbial technique and proprietary bio-carrier and ABR1+SBR1+ABR2+SBR2+ The method of the pyridine and its derivatives production biological process of wastewater treatment of the biologic treating technique of nitrification；The purpose of the present invention is for The shortcomings that overcoming the prior art provides a kind of method of pyridine and its derivatives production biochemical treatment process for wastewater, the pyridine And its method of derivative production biochemical treatment process for wastewater is by using EMO compound bacteria microbial technique and proprietary bio-carrier And the biochemical treatment system of ABR1+SBR1+ABR2+SBR2+ denitrification composition, make the COD removal rate of waste water up to 93%, total nitrogen is gone Except rate reaches 94%, pyridine removal rate reaches 98%, and most of organic matter is degraded and reached industrial wastewater row in waste water Put standard.
Biological wastewater treatment of the invention fully relies on the effect of microorganism to purify waste water, therefore the microorganism in waste water Whether type whether complete (for pollutant to be dealt with), quantity just become the condition of most critical enough.Only by certainly Bacterium germination come handle the new pollutant constantly synthesized be it is impossible, in conjunction with microorganism type, quantity and source, make its at For the core content of biological wastewater treatment.
The EMO compound bacteria microbial technique that the present invention uses has many advantages, such as follows compared with traditional activated sludge process: (1) A wide selection of colours and designs of microorganism, quantity are sufficient so that the decomposition of extremely complex intractable each type organic be able to it is smoothly complete At.(2) microbe species are more, adapt to toxic environment, and can share out the work and help one another, put out one's full powers, and complete challenge.(3) micro- life Object decomposing force extra-heavy, therefore can eliminate stink reduces amount of solid, and sludge is greatly reduced, thus can reduce processing cost with Operation difficulty.(4) decoloring ability traditional biological method victory matched compared with physical-chemical process exceedes 10 times.(5) processing capacity and achievement be Break the traditional concept of a lot of bioanalysis.EMO compound bacteria microbial technique and the comparison of traditional activated sludge process are as follows:
Traditional activated sludge process EMO compound bacteria microbial technique
It is big to add chemical drugs dosage, it is a lot of to generate sludge Without this problem
Overall cost of erection is quite big, and land occupation is wide, the device is complicated Without this problem
The removal rate of nitrogen (ammonia nitrogen) is relatively low Without this problem
Quantity, the type of microorganism be not complete, and CODcr removal rate is low Without this problem
When toxicant is more, the survival of microorganism is influenced Without this problem
The organic matter removal that hardly possible is decomposed is difficult Without this problem
A large amount of air must be supplied, energy source consumption is very big Without this problem
Often there is sludge extruding problem Without this problem
In the specific implementation, the decomposition chain that high definition microorganism is constituted.The decomposing force of various microorganisms be it is different, Selection high definition microbial species are implanted in waste water, and constitute the big feature that biological chain is EMO compound bacteria microbial technique.Its The microorganism of high definition abundant is achieved the biological treatment of the difficult biochemical waste water of certain BOD/COD < 0.3 in system, For high definition microorganism, the numerical value of the BOD of waste water is not conventional biochemical concept.
Contrast on effect of the present invention in the breakthrough of inhibiting substances concentration limit is as follows:
The present invention using EMO compound bacteria microbial technique to Environmental Protection in China circle generally believe can not biochemical treatment waste water It is researched and developed, the result shows that, such as nitrobenzene waste water, black liquid, high SO4 2-、Cl-Waste water, the pigment of content are useless Water, waste water from dyestuff, sauce waste water processed, pharmacy waste water, agricultural chemicals waste water, coking wastewater, gourmet powder waste water, saccharin wastewater etc. are completely may be used With what is handled using EMO compound bacteria microbial technique.
The compound bacteria microorganism of EMO in the present invention only need to be added once, without adding domestication and rejuvenation.Present invention incorporates Proprietary microbe carrier technique for fixing, proprietary microbe carrier increase the contact surface of microorganism and Organic Pollutants in Wastewater Product, and certain buffer function can be played, while proprietary microbe carrier has certain specific gravity, it is ensured that microbial biomass fills Sufficient and proprietary microbe carrier is not lost.
As shown in Figure 1, a kind of advanced treatment process of the production waste water of pyridine and its derivatives described in the present embodiment Method, implement point 5 stages: civil construction stage, proprietary bio-carrier add the stage, the compound bacteria microorganism of EMO adds activation Stage, domestication stage, operation phase.Specific step is as follows:
(1) the civil construction stage: requiring to build ABR, SBR, denitrification biochemistry pool and mating structures according to technique, and Pipe laying and equipment；ABR, SBR and denitrification biochemistry pool include two groups of ABR, SBR and a denitrification pond, two groups of ABR, SBR Respectively ABR1, SBR1；ABR2,SBR2；Every group of ABR, SBR connect, and intermediate pool 1 is arranged between two groups of ABR, SBR biochemistry pools；
(2) proprietary bio-carrier adds the stage: requiring to add proprietary biology load to ABR, SBR and denitrification pond according to technique Body；
(3) the compound bacteria microorganism of EMO adds the activation stage: activating the micro- of ABR, SBR and denitrification pond respectively as requested Biology, and added to ABR, SBR and denitrification pond；
(4) tame the stage: ABR fills it up with waste water, plays self-loopa, and SBR is added portionwise waste water and is aerated, and denitrification pond is filled it up with useless Water plays self-loopa and is spaced aeration；
(5) operation phase: after the completion of microbial acclimation, entire technique starts continuous operation, monitors each biochemistry pool daily Inlet and outlet water index, until meeting processing requirement completes a process flow.
Serial number Index Unit Influent quality Effluent quality
1 CODcr mg/L < 7000 ≤500
2 Total nitrogen mg/L < 800 ≤50
3 Pyridine mg/L < 60 ≤1
4 pH 7-8 6-9
Long-time continuous operation, water outlet COD, total nitrogen and the pyridine of biochemistry pool have entirely reached discharge standard, illustrate that EMO is multiple Efficient removal of the combined bacteria microbial technique to pyridine and its derivatives production waste water.
The preferred embodiment for the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention It makes a variety of changes, these variations are related to the relevant technologies well-known to those skilled in the art, these both fall within the invention patent Protection scope.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not It is limited to specific embodiment, the scope of the present invention is defined by the following claims.

Claims (5)

1. a kind of bioremediation of pyridine and its derivatives production waste water, it is characterised in that: include 5 steps: civil engineering is applied Work stage, proprietary bio-carrier add the stage, the compound bacteria microorganism of EMO adds activation stage, domestication stage, operation phase；Tool Steps are as follows for body:
(1) it the civil construction stage: requires to build ABR, SBR, denitrification biochemistry pool and mating structures according to technique, and installs Pipeline and equipment；ABR, SBR and denitrification biochemistry pool include two groups of ABR, SBR and a denitrification pond, two groups of ABR, SBR difference For ABR1, SBR1；ABR2,SBR2；Every group of ABR, SBR connect, and intermediate pool 1 is arranged between two groups of ABR, SBR biochemistry pools；
(2) proprietary bio-carrier adds the stage: requiring to add proprietary bio-carrier to ABR, SBR and denitrification pond according to technique；
(3) the compound bacteria microorganism of EMO adds the activation stage: activate the microorganism of ABR, SBR and denitrification pond respectively as requested, And it is added to ABR, SBR and denitrification pond；
(4) tame the stage: ABR fills it up with waste water, plays self-loopa, and SBR is added portionwise waste water and is aerated, and waste water is filled it up in denitrification pond, It plays self-loopa and is spaced aeration；
(5) operation phase: after the completion of microbial acclimation, entire technique starts continuous operation, monitors the disengaging of each biochemistry pool daily Water index, until meeting processing requirement completes a process flow；
In the step (1), the conditioning tank for deploying waste water is built first；Conditioning tank is sequentially connected ABR1, SBR1, intermediate pool 1, ABR2, SBR2, intermediate pool 2, denitrification pond, coagulative precipitation tank and clear water reserviors；
The conditioning tank, ABR1, SBR1, ABR2, SBR2, denitrification pond, mixed precipitation pond also pass through bypass line and are connected to dirt Mud thickener；Pump is set between intermediate pool 1 and ABR2, setting pump I between intermediate pool 2 and denitrification pond；Denitrification pond two sides It is arranged on connecting line for pipeline substance on rear side of denitrification pond to be pumped to the pump II into pipeline on front side of denitrification pond.
2. a kind of bioremediation of pyridine and its derivatives production waste water as described in claim 1, it is characterised in that: institute It states coagulative precipitation tank and is connected with PAM tank and PAC tank for adding PAM and PAC.
3. a kind of bioremediation of pyridine and its derivatives production waste water as described in claim 1, it is characterised in that: into Water COD is controlled within 7000mg/L, and total nitrogen concentration controls within 800mg/L, and pyridine concentration controls within 60mg/L.
4. a kind of bioremediation of pyridine and its derivatives production waste water as claimed in claim 3, it is characterised in that: go out Water COD≤500mg/L, total nitrogen≤50mg/L, pyridine≤1mg/L have reached industrial wastewater discharge standard.
5. a kind of bioremediation of pyridine and its derivatives production waste water as described in claim 1, it is characterised in that: The compound bacteria microorganism of EMO only need to be added once, without adding and rejuvenation；Bio-carrier only need to be added once.
CN201910660069.XA 2019-07-22 2019-07-22 A kind of bioremediation of pyridine and its derivatives production waste water Pending CN110342744A (en)

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CN113415875A (en) * 2021-06-08 2021-09-21 湘潭建源生物技术开发有限公司 Biological treatment method for rare earth mining tail water

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