CN111732276A - Antibiotic wastewater treatment process - Google Patents
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C02F2209/02—Temperature
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- C02F2209/16—Total nitrogen (tkN-N)
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- 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
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Abstract
The application provides an antibiotic wastewater treatment process, and belongs to the technical field of multistage treatment of water, wastewater or sewage. The antibiotic wastewater to be treated is discharged after being sequentially treated by a nanofiltration membrane component, a water distribution tank, an anaerobic baffling reaction tank, a sequencing batch activated sludge tank, an anoxic tank, an aerobic tank, a sedimentation tank, a microbial membrane reactor and an aeration biological filter, and the antibiotic wastewater to be treated is pumped into the nanofiltration membrane component by a centrifugal pump; the distribution tank is provided with a dosing tank; activated carbon and/or polyurethane filler is respectively filled in the anaerobic baffled reaction tank, the sequencing batch activated sludge tank, the anoxic tank, the aerobic tank, the sedimentation tank, the microbial membrane reactor and the aeration biological filter tank, and salt-tolerant composite bacteria are inoculated. The method is applied to high-salt antibiotic wastewater treatment, and solves the problems of poor adaptability, weak load impact resistance and high cost when the high-salt organic wastewater is treated by the traditional biochemical method.
Description
Technical Field
The application relates to an antibiotic wastewater treatment process, and belongs to the technical field of multistage treatment of water, wastewater or sewage.
Background
At present, with the development of chemical production and manufacturing industry, the scale of high-salinity wastewater generation is continuously increased, the high-salinity wastewater mainly comes from the production processes of printing and dyeing, soda ash manufacturing, pharmacy, food processing, coal chemical industry, petrochemical industry and the like, and a certain technical bottleneck still exists when the high-salinity wastewater reaches the standard in a large scale and is treated at low cost. In the 50 to 80 years of the last century, the high-salinity wastewater treatment mainly adopts multi-stage flash evaporation, low-temperature multi-effect evaporation and other distillation methods, and the technologies of electrodialysis, low-temperature freezing and the like are continuously developed for industrial application; by the end of the last century, the high-salinity wastewater treatment technology mainly comprises a distillation method and a reverse osmosis method, the application range of the distillation method is larger than that of the reverse osmosis technology, but with the rapid development of the high-salinity wastewater treatment technology, the application field of the reverse osmosis technology exceeds that of the distillation method. At present, a membrane method and a distillation method become main technologies for treating high-salinity wastewater. With the implementation of a series of strict environmental protection policies such as new national environmental protection laws, water pollution prevention actions and the like, the flow direction of wastewater, sewage and strong brine becomes a difficult problem of each production enterprise, which is related to the survival and development of the enterprises. Therefore, the research on the high-salinity wastewater treatment technology (total salt is more than or equal to 28000 mg/L) is urgent, an effective high-salinity wastewater treatment method is urgent, and the research on the treatment method and technology of the high-salinity wastewater becomes important for wastewater treatment.
Disclosure of Invention
In view of the above, the application provides an antibiotic wastewater treatment process, which is a physicochemical-biochemical coupling process, adopts a specific high-salt-resistant microbial composite flora, and solves the problems of poor adaptability, weak load impact resistance and high cost when the high-salt organic wastewater is treated by the traditional biochemical method.
The high-salt-resistant microbial complex flora (namely salt-resistant complex bacteria) is a microbial complex halophilic flora, strains produced by natural and artificial screening are domesticated and cultured for a period of time, and dominant halophilic bacteria are repeatedly separated and purified, so that efficient active microbes with better pollutant removal capacity are cultured.
Specifically, the method is realized through the following scheme:
antibiotic wastewater to be treated is discharged after being sequentially treated by a nanofiltration membrane component, a water distribution tank, an anaerobic baffling reaction tank, a sequencing batch activated sludge tank, an anoxic tank, an aerobic tank, a sedimentation tank, a microbial membrane reactor and an aeration biological filter tank, and the antibiotic wastewater to be treated is pumped into the nanofiltration membrane component by a centrifugal pump; the COD concentration of the wastewater treated by the nanofiltration membrane component is less than or equal to 8500mg/L, the total salt concentration is less than or equal to 28000mg/L, and the total nitrogen concentration is less than or equal to 400mg/L, wherein the water distribution tank is provided with a dosing tank for adding acid and alkali so as to adjust the pH value of the wastewater in the water distribution tank to 7.5-8.5; respectively filling an activated carbon layer and/or a polyurethane layer in the anaerobic baffling reaction tank, the sequencing batch activated sludge tank, the anoxic tank, the aerobic tank, the sedimentation tank, the microbial membrane reactor and the biological aerated filter, inoculating salt-tolerant composite bacteria for degrading organic matters, forming a high-activity microbial membrane on the surfaces of the activated carbon filler and the polyurethane filler, and attaching carbonized bacteria, nitrosobacteria, nitrobacteria and hydrolytic acidification bacteria to the activated carbon layer and/or the polyurethane layer so as to efficiently degrade pollutants in the wastewater; aeration devices are arranged at the bottoms of the sequencing batch activated sludge tank, the aerobic tank, the microbial membrane reactor and the aeration biological filter, and the dissolved oxygen in the wastewater is maintained to be more than 4 mg/L; a reflux pump is arranged between the aerobic tank and the sedimentation tank to realize the reflux of the wastewater between the aerobic tank and the sedimentation tank.
The antibiotic wastewater treatment process is integrally divided into two stages: the nanofiltration membrane component and the distribution tank are used as a pretreatment stage; the biochemical treatment stage is arranged after the distribution tank, and the specific working principle of each stage is described as follows:
a. on the whole, the physicochemical and biochemical coupling process not only can have a better effect of removing COD in the antibiotic wastewater under the condition of higher total salt concentration, but also has an obvious effect of removing total nitrogen, and the treated wastewater can reach the discharge standard. Meanwhile, a large amount of medicament cost and power energy consumption can be saved, and secondary atmospheric pollution generated in the wastewater treatment process is avoided.
b. The nanofiltration membrane component is a physicochemical stage of pretreatment, high-salt antibiotic wastewater enters a nanofiltration membrane treatment system, and after the treatment of the process, the removal rate of macromolecular easily-toxic organic matters in the wastewater can reach more than 98 percent, the COD of the wastewater can be greatly reduced, and the biodegradability of the wastewater is improved; the total salt content of the effluent is not changed. Most macromolecular toxic substances in the antibiotic wastewater are removed by a nanofiltration membrane component, the antibiotic wastewater enters a biochemical treatment stage by a centrifugal pump, the COD concentration of the wastewater in a distribution pool is controlled to be less than or equal to 8500mg/L, the total salt concentration is controlled to be less than or equal to 28000mg/L, the total nitrogen concentration is controlled to be less than or equal to 400mg/L, and the pH of the inlet water is adjusted to be 7.5-8.5 by an acid-base dosing tank.
c. The wastewater after the physicochemical pretreatment enters a distribution tank, the water quality and the pH value of the wastewater are adjusted and uniformly mixed (by uniformly mixing with domestic wastewater, low-concentration wastewater in production and the like), and the conventional precipitate removing process is not needed before the wastewater enters a biochemical system because the wastewater is treated by a nanofiltration membrane component. The distribution pool is used for continuously feeding water and distributing water, the water feeding pump and the electromagnetic flow meter are interlocked to control the water feeding quantity, and the acid-base adjusting groove provided with the proportion adjusting valve and the pH value in the distribution pool are interlocked to control the water feeding quality.
d. Waste water gets into the biochemical treatment stage after the distribution tank is handled, and the biochemical treatment stage includes two stages again, and the first stage is the preliminary biochemical treatment stage of waste water, includes in proper order: an anaerobic baffling reaction tank, a sequencing batch active sludge reaction tank (in the same reaction tank, an active sludge sewage treatment method consisting of five basic procedures of water inlet, aeration, sedimentation, drainage and standby according to the time sequence, called SBR for short, is an active sludge sewage treatment technology operating according to an intermittent aeration mode, and is mainly characterized in that the operation is orderly and intermittently operated, the core of the SBR technology is the SBR reaction tank which integrates the functions of homogenization, primary sedimentation, biodegradation, secondary sedimentation and the like into one tank, a sludge backflow-free system is not provided, the anaerobic baffling reaction tank and the sequencing batch active sludge reaction tank are particularly suitable for occasions with large intermittent discharge and flow change, and the design parameters comprise cycle number, water filling ratio, oxygen demand, sludge load, sludge yield, sludge concentration, sludge age and the like), the pH value of the wastewater in a biochemical treatment stage is controlled to be 7.0-8.5, the temperature is controlled to be 28-35 ℃, and the retention time of the wastewater in the stage is about 10 days; the second stage is the advanced wastewater treatment stage, and sequentially comprises: the pH value of wastewater of the aeration biological filter and the microbial film reactor in a biochemical treatment stage is controlled to be 7.0-8.5, the temperature is controlled to be 28-35 ℃, and the retention time of the wastewater in the stage is about 2 days.
In the biochemical treatment stage, active carbon fillers, polyurethane fillers and composite fillers with different particle sizes are adopted, a plurality of small A2/O processes are formed on the fillers by the active sludge, in the efficient fillers with a certain diameter and naturally distributed with carbonized bacteria, nitrosobacteria, nitrobacteria and hydrolytic acidification bacteria, when waste water passes through different fillers loaded with microorganisms, organic matters which are difficult to degrade are degraded into small-molecular organic matters which are easy to degrade, and finally the organic matters are treated to reach the standard. The compound microbial flora is a high-efficiency high-salinity wastewater-resistant bioactive product with special functions, which is prepared from high-efficiency strains produced by a gene combination technology by adopting an advanced biotechnology and a special production process.
Further, as preferable:
the antibiotic wastewater to be treated sequentially passes through a nanofiltration membrane component, a distribution tank, an anaerobic baffling reaction tank, a sequencing batch activated sludge tank, an anoxic tank, an aerobic tank, a sedimentation tank, a microbial membrane reactor and an aeration biological filter tank, the water level is reduced in a step shape, the wastewater forms a self-flow mode in the whole treatment process, the load resistance and the impact resistance of the system are enhanced by combining various processes such as the anaerobic baffling reaction tank, the sequencing batch activated sludge reaction tank, the anaerobic/aerobic tank, the aeration biological filter tank, the microbial membrane reactor and the like, the dissolved oxygen of the wastewater is maintained to be more than 4mg/L by an aeration device, and the retention time of the wastewater in a biochemical treatment stage is about 12 days.
The baffling type anaerobic reactor adopts 4 lattices, the tail end of the baffling type anaerobic reactor is provided with backflow, the backflow is carried out to the first lattice, and the internal circulation is regulated and controlled through the backflow flow.
The sequencing batch type activated sludge reaction tanks are connected in parallel, and are periodically switched in the operation process, so that the continuous water inlet of the system is ensured.
Dissolved oxygen in the sequencing batch activated sludge reaction tank, the microbial membrane reactor, the biological aerated filter and the aerobic tank is 4.0-6.0 mg/L, preferably, the aeration device is connected with an aeration fan for aeration, and the aeration fan can adjust frequency and is interlocked with an online dissolved oxygen meter arranged in the tank, so that the content of the dissolved oxygen in each aeration tank is ensured.
The anaerobic baffling reaction tank, the sequencing batch activated sludge tank, the anoxic tank, the aerobic tank, the sedimentation tank, the microbial membrane reactor and the biological aerated filter are all provided with a steam heating and circulating water cooling system, so that the temperature is maintained at 28-35 ℃.
The reactor is characterized in that membrane frames are arranged in the microbial membrane reactor, flat membrane assemblies are arranged between the membrane frames, and a self-sucking pump is arranged at the water outlet end of the microbial membrane reactor.
The salt-tolerant complex bacteria related to the treatment process are halophilic bacteria for degrading toxic and harmful organic pollutants and decomposing benzene compounds, heterocyclic compounds, aldehydes and ketones and amine compounds; remove COD and have better removal capability on ammonia nitrogen, sulfide and phosphide.
Compared with the prior art, the invention has the following beneficial effects:
1. the pretreatment adopts a nanofiltration membrane component for treatment, which ensures that macromolecular easily-toxic organic matters are removed, the biological toxicity of the wastewater is obviously reduced, and simultaneously the suspended matters meet the requirement of entering a biochemical system.
2. The anaerobic baffling reaction tank is adopted for reaction, so that the treatment process has a multi-section phase splitting and mixed flow state treatment state, and in the operation process, the microorganisms realize the separation of acid production and methane production along the wastewater plug flow direction, and have better buffering adaptability to impact load and toxic substances in inlet water.
3. The sequencing batch type activated sludge reaction tank integrates aerobic, anaerobic and sedimentation functions, and can remove COD in a given space and also has a certain removal effect on total nitrogen.
4. The microbial membrane reactor is adopted, so that the stable quality of the effluent water and the impact load resistance are ensured, ammonia nitrogen and refractory organic matters can be further removed, and the amount of the residual sludge is small.
5. The related complex microbial flora (salt-tolerant complex bacteria) has stronger degradation capability on various common pollutants in the chemical pharmaceutical industry; the speed of eliminating pollutants in the wastewater is high, and the capacity is strong; the capability of degrading organic matters such as COD, ammonia nitrogen, sulfide, phosphorus and the like is strong, and biological deodorization can be realized; the sludge amount is small, about 0.01 kg of sludge generated by removing each kg of COD is removed, the sludge compactness is high, and the stability is good; the removal rate of CODcr can reach more than 93%, and the removal rate of total nitrogen is more than 82%; harmful organic matters in the wastewater can be decomposed under the conditions of high-concentration sulfate ions and chloride ions (20000-30000 mg/L); has very strong impact resistance and toxicity resistance;
6. the related compound microbial flora (salt-tolerant compound bacteria) adopts natural and artificial screening and separation products, and after a period of acclimation culture, the dominant halophilic bacteria are repeatedly separated and purified, so that the high-efficiency active microorganisms with better pollutant removal capability are cultured, and the water quality adaptation capability, the impact resistance capability and the organic pollutant decomposition efficiency are higher than those of common pure strains.
The physicochemical-biochemical coupling process is adopted to treat the high-salt antibiotic wastewater of the company to achieve the expected design effect, the adopted microbial thallus and the process have certain tolerance to salt and antibiotics, the removal rate of COD in the biochemical treatment process section can reach more than 93 percent, the removal rate of total nitrogen can reach more than 82 percent, the treated wastewater can reach the discharge standard of a nano tube, the operation cost is low, and no other cost is generated except for the cost of a small amount of chemical agents.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the aeration section of a microbial membrane reactor according to the present application;
FIG. 3 is a schematic diagram of the internal structure of a microbial membrane reactor according to the present application.
Reference numbers in the figures: 1. a nanofiltration membrane module; 11. a centrifugal pump; 2. a water distribution tank; 21. a medicine adding tank; 3. an anaerobic baffling reaction tank; 31. an exhaust gas collection conduit; 4. a sequencing batch activated sludge reaction tank; 41. an exhaust gas collection conduit; 5. an anoxic tank; 6. an aerobic tank; 61. an activated carbon layer; 7. a sedimentation tank; 71. a reflux pump; 72. a water inlet pipe; 8. a microbial membrane reactor; 81. a film frame; 82. a flat membrane module; 83. an aeration device; 84. a self-priming pump; 85. an aeration fan; 9. an aeration biological filter; 91. a polyurethane filler layer.
Detailed Description
The embodiment relates to a method for treating high-salt antibiotic pharmaceutical organic wastewater, and in combination with figure 1, particularly relates to a physicochemical-biochemical coupling treatment process which is applied to the process of high-salt refractory organic wastewater. The antibiotic wastewater to be treated is discharged after being sequentially treated by a nanofiltration membrane component 1, a distribution tank 2, an anaerobic baffling reaction tank 3, a sequencing batch activated sludge tank 4, an anoxic tank 5, an aerobic tank 6, a sedimentation tank 7, a microbial membrane reactor 8 and an aeration biological filter tank 9, and the antibiotic wastewater to be treated is pumped into the nanofiltration membrane component 1 by a centrifugal pump 11; the COD concentration of the wastewater treated by the nanofiltration membrane component 1 is less than or equal to 8500mg/L, the total salt concentration is less than or equal to 28000mg/L, the total nitrogen concentration is less than or equal to 400mg/L, and the distribution tank 2 is provided with a dosing tank 21 for adding acid and alkali so as to adjust the pH value of the wastewater in the distribution tank 2 to 7.5-8.5; activated carbon and/or polyurethane filler are respectively filled in the anaerobic baffled reaction tank 3, the sequencing batch activated sludge tank 4, the anoxic tank 5, the aerobic tank 6, the sedimentation tank 7, the microbial film reactor 8 and the aeration biological filter 9, salt-tolerant composite bacteria for degrading organic matters are inoculated, a high-activity microbial film is formed on the surfaces of the activated carbon filler and the polyurethane filler, and carbonized bacteria, nitrosobacteria, nitrobacteria and hydrolytic acidification bacteria are attached to the activated carbon and/or the polyurethane filler so as to efficiently degrade pollutants in the wastewater; aeration devices are arranged at the bottoms of the sequencing batch activated sludge tank 4, the aerobic tank 6, the microbial film reactor 8 and the biological aerated filter 9, and the dissolved oxygen in the wastewater is maintained to be more than 4 mg/L; a reflux pump 71 is arranged between the aerobic tank 6 and the sedimentation tank 7 to realize the reflux of the wastewater between the aerobic tank 6 and the sedimentation tank 7.
1. The wastewater enters the nanofiltration membrane component 1 through the centrifugal pump 11 for water inlet pressurization, and after the wastewater is treated by the nanofiltration membrane component 1, macromolecular easily-toxic organic matters and suspended matters are removed.
2. The wastewater enters a distribution tank 2, the water quantity and the water quality are adjusted by an automatic control system, acid and alkali (such as sodium hydroxide and hydrochloric acid) are added through a medicine adding tank 21 to adjust the pH, the pH is controlled to be 7.0-8.5, and the distribution tank 2 is in a continuous operation mode.
3. The waste water adjusted by water quality and quantity enters a biochemical treatment system, and the primary biochemical treatment stage of the first stage sequentially comprises: an anaerobic baffling reaction tank 3, a sequencing batch activated sludge reaction tank 4, an anoxic tank 5 and an aerobic tank 6. The retention time of the wastewater in the anaerobic baffling reaction tank 3 is about 4 days, the retention time of the wastewater in the sequencing batch activated sludge reaction tank 4 is about 4 days, the retention time of the wastewater in the anoxic tank 5 and the aerobic tank 6 is about 1.5 days in total, the pH of each unit is controlled to be 7.0-8.5, and the temperature is maintained at 28-35 ℃; granular activated carbon is added into an anaerobic baffling reaction tank 3, powdered activated carbon is added into a sequencing batch activated sludge reaction tank 4 and an aerobic tank 6 (only an activated carbon layer 61 in the aerobic tank 6 is shown in figure 1 for illustration), and the aerobic tank 6 is provided with a sedimentation tank 7 which is matched with a reflux pump 71 and is used for refluxing activated sludge to an anoxic tank 5.
4. The advanced biochemical treatment stage of the second stage sequentially comprises a microbial membrane reactor 8 and a biological aerated filter 9, wherein the retention time of the wastewater in the microbial membrane reactor 8 is about 1 day, the retention time in the biological aerated filter 9 is about 1.5 days, the pH of each unit is controlled to be 7.0-8.5, and the temperature is maintained at 28-35 ℃; polyurethane filler is added into the biological aerated filter 9 to form a polyurethane filler layer 91.
5. Aeration devices (an aeration device 83 is marked in the figure as an example only) are arranged at the bottoms of the sequencing batch activated sludge reaction tank 4, the aerobic tank 6, the microbial membrane reactor 8 and the biological aerated filter 9, and dissolved oxygen in each tank is kept at 4.0-6.0 mg/L through regulation and control of an aeration fan 85 provided with a frequency converter.
6. The anaerobic baffling reaction tank 3, the sequencing batch activated sludge reaction tank 4, the anoxic tank 5, the aerobic tank 6, the microbial film reactor 8 and the biological aerated filter 9 are all hermetically treated, and all waste gas is collected and then enters a waste gas treatment system for treatment and then is discharged.
This embodiment combines wastewater treatment technology microbial membrane reactor 8, combines together sewage biological treatment technique and membrane separation technique, at first through membrane separation bacterium, tame the dominant bacteria, avoid activated sludge's loss, the mud concentration in the membrane pond can reach 8000 to 20000 mg/L, 2 to 5 times higher than traditional activated sludge method, under the condition that reaches same treatment effect, the required volume of reaction tank is littleer for the occupation of land of system is compacter. And the activated sludge is utilized to degrade organic matters in water, and then the membrane technology is utilized to filter suspended matters and water-soluble macromolecular substances, so that the water turbidity is reduced, and the concentration requirement of the suspended matters when the wastewater enters the biological aerated filter is met. Referring to fig. 2 and 3, a membrane frame 81 is arranged in the microbial membrane reactor 8, a flat membrane assembly 82 is arranged between the membrane frames 81, an aeration pipe is arranged in the reaction tank, the aeration pipe is matched with an aeration fan 85 to form an aeration device 83, and a self-priming pump 84 is arranged at the water outlet end.
The wastewater treatment of the embodiment is a physicochemical-biochemical coupling process, the treatment capacity of biochemical treatment wastewater is improved in a larger range by combining salt-tolerant composite bacteria, and the stability, load resistance and load impact resistance of the system are greatly improved by the combined application of various processes and fillers. The original evaporation process is replaced, the treated wastewater can reach the discharge standard, the energy consumption and the atmospheric pollution are reduced, and the operation cost is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and the technical solution and the inventive concept thereof should be equally replaced or changed within the scope of the present invention.
Claims (9)
1. An antibiotic wastewater treatment process is characterized in that: the antibiotic wastewater to be treated is discharged after being sequentially treated by a nanofiltration membrane component, a water distribution tank, an anaerobic baffling reaction tank, a sequencing batch activated sludge tank, an anoxic tank, an aerobic tank, a sedimentation tank, a microbial membrane reactor and an aeration biological filter, and the antibiotic wastewater to be treated is pumped into the nanofiltration membrane component by a centrifugal pump; the COD concentration of the wastewater treated by the nanofiltration membrane component is less than or equal to 8500mg/L, the total salt concentration is less than or equal to 28000mg/L, and the total nitrogen concentration is less than or equal to 400mg/L, wherein the water distribution tank is provided with a dosing tank for adding acid and alkali so as to adjust the pH value of the wastewater in the water distribution tank to 7.5-8.5; activated carbon and/or polyurethane filler are respectively filled in the anaerobic baffled reaction tank, the sequencing batch activated sludge tank, the anoxic tank, the aerobic tank, the sedimentation tank, the microbial membrane reactor and the aeration biological filter tank, and salt-tolerant composite bacteria are inoculated on the activated carbon and/or the polyurethane filler; and aeration devices are arranged at the bottoms of the sequencing batch activated sludge tank, the aerobic tank, the microbial membrane reactor and the biological aerated filter, and the dissolved oxygen in the wastewater is maintained to be more than 4 mg/L.
2. The antibiotic wastewater treatment process according to claim 1, wherein: the water level of the antibiotic wastewater to be treated is reduced in a step shape in the processes of sequentially passing through a nanofiltration membrane component, a water distribution tank, an anaerobic baffling reaction tank, a sequencing batch activated sludge tank, an anoxic tank, an aerobic tank, a sedimentation tank, a microbial membrane reactor and an aeration biological filter.
3. The antibiotic wastewater treatment process according to claim 1, wherein: the baffling type anaerobic reactor adopts 4 lattices, the tail end of the baffling type anaerobic reactor is provided with backflow, the backflow is carried out to the first lattice, and the internal circulation is regulated and controlled through the backflow flow.
4. The antibiotic wastewater treatment process according to claim 1, wherein: the sequencing batch type activated sludge reaction tanks are connected in parallel.
5. The antibiotic wastewater treatment process according to claim 1, wherein: the dissolved oxygen in the sequencing batch activated sludge reaction tank, the microbial membrane reactor, the biological aerated filter and the aerobic tank is 4.0-6.0 mg/L.
6. The high-salt antibiotic wastewater treatment process as claimed in claim 5, wherein: the aeration device is connected with an aeration fan for aeration, and the aeration fan can adjust frequency and is interlocked with an online dissolved oxygen meter installed in the tank.
7. The antibiotic wastewater treatment process according to claim 1, wherein: the anaerobic baffling reaction tank, the sequencing batch activated sludge tank, the anoxic tank, the aerobic tank, the sedimentation tank, the microbial membrane reactor and the biological aerated filter are all provided with a steam heating and circulating water cooling system, so that the temperature is maintained at 28-35 ℃.
8. The antibiotic wastewater treatment process according to claim 1, wherein: a reflux pump is arranged between the aerobic tank and the sedimentation tank.
9. The antibiotic wastewater treatment process according to claim 1, wherein: the reactor is characterized in that membrane frames are arranged in the microbial membrane reactor, flat membrane assemblies are arranged between the membrane frames, and a self-sucking pump is arranged at the water outlet end of the microbial membrane reactor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062425A (en) * | 2020-10-15 | 2020-12-11 | 山西思檀鼎业生物工程有限公司 | Coal bed gas mining, draining and purifying system |
| CN112537847A (en) * | 2020-12-24 | 2021-03-23 | 中国石油工程建设有限公司 | Magnetic biochemical system and method suitable for shale gas fracturing flow-back fluid treatment |
| CN113135640A (en) * | 2021-04-30 | 2021-07-20 | 安徽国星生物化学有限公司 | Method for treating pyridine-containing wastewater by using microorganisms |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112062425A (en) * | 2020-10-15 | 2020-12-11 | 山西思檀鼎业生物工程有限公司 | Coal bed gas mining, draining and purifying system |
| CN112537847A (en) * | 2020-12-24 | 2021-03-23 | 中国石油工程建设有限公司 | Magnetic biochemical system and method suitable for shale gas fracturing flow-back fluid treatment |
| CN113135640A (en) * | 2021-04-30 | 2021-07-20 | 安徽国星生物化学有限公司 | Method for treating pyridine-containing wastewater by using microorganisms |
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