Monosultap production wastewater treatment device
By combining multi-stage treatment technology and applying the highly efficient compound bacteria strain Lanbiqing, the problems of high treatment cost and low removal rate of insecticide production wastewater have been solved, achieving efficient wastewater discharge that meets standards and is suitable for industrial applications.
Patent Information
- Application Number
- CN202423232118.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, wastewater treatment methods for pesticide production are costly and have low removal rates. Microbial treatment is susceptible to pesticide toxicity, making it difficult to achieve discharge standards.
The system employs a multi-stage combined treatment technology, including water distribution and regulation, evaporation and desalination, iron-carbon micro-electrolysis, pre-oxidation, neutralization and aeration, coagulation and sedimentation, and biochemical treatment units. Combining physicochemical and biochemical methods, it uses Lanbiqing high-efficiency compound bacteria for anaerobic and aerobic treatment, and further achieves high-efficiency removal through flocculation sedimentation and catalytic oxidation.
It effectively treats high-concentration insecticide wastewater of 19,000 mg/L, with effluent COD less than 100 mg/L, ammonia nitrogen less than 15 mg/L, and total phosphorus less than 0.5 mg/L, meeting the emission standards for industrial applications. The device is also resistant to load and impact.
Smart Images
Figure CN223793022U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of biological wastewater treatment, specifically relating to a wastewater treatment device for insecticide production. Background Technology
[0002] Pesticides, a common pesticide, generate wastewater containing various pollutants during their production, requiring effective treatment technologies to minimize their environmental impact. Pesticide wastewater treatment technologies mainly fall into three categories: physical, chemical, and biological methods. Among physical methods, adsorption, extraction, and membrane separation are often used in the pretreatment stage; however, these methods are costly, and the residual substances in the treated wastewater are difficult to meet discharge standards.
[0003] Current chemical methods involve micro-electrolysis technology, which can remove pollutants such as COD, color, arsenic, and phosphorus from pesticide wastewater through a combination of flocculation, adsorption, and other effects, but the removal rate is only 60%. Biological methods utilize the metabolic activity of microorganisms to treat organic wastewater, but because pesticides are toxic to microorganisms, the concentration of pesticides in the wastewater should not be too high, otherwise it will affect the activity of microorganisms or even cause them to die. Utility Model Content
[0004] This utility model addresses the problems existing in the prior art by disclosing a wastewater treatment device for insecticide production. This utility model is mainly based on a combination of physicochemical, biochemical and advanced oxidation technologies, and utilizes multi-stage combined treatment technology to improve the degradation capacity of insecticide production wastewater and solve the problems existing in the prior art.
[0005] This utility model is implemented as follows:
[0006] A wastewater treatment device for insecticide production, the device comprising a water distribution and adjustment unit, an evaporation and desalination unit, a condensate collection unit, an iron-carbon micro-electrolysis unit, a pre-oxidation unit, a neutralization and aeration unit, a coagulation and sedimentation unit, a biological water distribution unit, an ABR anaerobic unit, a continuous aerobic unit, a reflux sedimentation unit, a BAF biological unit, a flocculation and sedimentation unit, a catalytic oxidation unit, and a phosphorus removal and sedimentation unit. The device is connected as follows: the water distribution and regulating unit is connected to the inlet of the evaporation desalination unit; the outlet of the evaporation desalination unit is connected to the inlet of the condensate collection unit; the outlet of the condensate collection unit is connected to the inlet of the iron-carbon micro-electrolysis unit; the outlet of the iron-carbon micro-electrolysis unit is connected to the inlet of the pre-oxidation unit; the outlet of the neutralization aeration unit is connected to the inlet of the coagulation and sedimentation unit; the outlet of the coagulation and sedimentation unit is connected to the inlet of the biological water distribution unit; the outlet of the biological water distribution unit is connected to the inlet of the ABR anaerobic unit; the outlet of the ABR anaerobic unit is connected to the inlet of the continuous aerobic unit; the outlet of the continuous aerobic unit is connected to the inlet of the reflux sedimentation unit; the outlet of the reflux sedimentation unit is connected to the inlet of the BAF biological unit; the outlet of the BAF biological unit is connected to the inlet of the flocculation sedimentation unit; the outlet of the flocculation sedimentation unit is connected to the inlet of the catalytic oxidation unit; the outlet of the catalytic oxidation unit is connected to the inlet of the phosphorus removal and sedimentation unit, and the phosphorus removal and sedimentation unit is provided with an outlet.
[0007] Wastewater is collected and distributed through a water distribution and regulation unit. The effluent from the water distribution and regulation unit is treated by an evaporation and desalination unit and a condensate collection unit, and the pH is adjusted to 1-2. The effluent from the condensate collection unit is then treated by an iron-carbon micro-electrolysis unit, a pre-oxidation unit, a neutralization and aeration unit, and a coagulation and sedimentation unit. The effluent from the coagulation and sedimentation unit is discharged into a biological water distribution unit for collection and mixing with low-concentration wastewater from the plant area, and the pH is adjusted to 7-8. The effluent from the biological water distribution unit is then treated by a biochemical treatment unit, a continuous aerobic unit, a reflux sedimentation unit, and a BAF biological treatment unit. Finally, the effluent is treated by a flocculation sedimentation unit, a catalytic oxidation unit, and a phosphorus removal and precipitation unit. The effluent from the phosphorus removal and precipitation unit meets the discharge standards.
[0008] Furthermore, the ABR anaerobic unit adopts a baffle plate anaerobic treatment process and adds pore-expanding modified granular activated carbon. The anaerobic tank is divided into 4 compartments connected in series. Wastewater is distributed through the bottom water distribution pipe and then flows through the packing layer in an upflow manner.
[0009] Furthermore, the continuous aerobic unit is equipped with a microporous aeration system and a drainage system, and 30-80 mesh activated carbon is added as filler.
[0010] Furthermore, the ABR anaerobic unit is supplemented with Lanbiqing high-efficiency compound anaerobic bacteria; the Lanbiqing high-efficiency compound anaerobic bacteria include Bacillus brevis, Achromobacterium, Bacillus thuringiensis, and large lysinic bacteria; the continuous aerobic unit is supplemented with Lanbiqing high-efficiency compound aerobic bacteria, the Lanbiqing high-efficiency compound aerobic bacteria include Alcaligenes, Proteus, low-nutrient flocculent bacteria, and Sphingomonas; the BAF biochemical unit is supplemented with Lanbiqing high-efficiency nitrifying compound bacteria, the Lanbiqing high-efficiency nitrifying compound bacteria include Oligotrophozoites, Paracoccus azoides, and Providencia.
[0011] Furthermore, a portion of the sludge from the reflux settling unit is refluxed to the continuous aerobic unit.
[0012] The reflux settling unit (11) is equipped with a reflux port and connected to the inlet (34) of the continuous aerobic unit; the coagulation sedimentation unit (7), the flocculation settling unit (13) and the phosphorus removal sedimentation unit (15) are all equipped with sludge treatment systems to discharge excess sludge; the sludge of the reflux settling unit (11) is returned to the continuous aerobic unit (10) through the reflux port and the inlet (34) of the continuous aerobic unit.
[0013] This utility model discloses a device for treating wastewater from insecticide production. The device also provides a method for using this treatment method, characterized by the following steps:
[0014] Step 1: Collect and distribute the wastewater from the insecticide production unit to the water distribution and adjustment unit. The wastewater from the water distribution and adjustment unit is then passed into the evaporation and desalination unit. After evaporation, the condensate is collected in the condensate collection unit.
[0015] Step 2: Adjust the pH of the condensate collected by the condensate collection unit to 1-2, and then let it enter the iron-carbon micro-electrolysis unit for micro-electrolysis treatment.
[0016] Step 3: The effluent from the micro-electrolysis unit enters the pre-oxidation, neutralization and aeration unit in batches for pretreatment before the biochemical stage.
[0017] Step 4: The effluent from the coagulation and sedimentation unit enters the biological water distribution unit to be mixed with the low-concentration wastewater in the plant area, and the pH is adjusted to 6-8.
[0018] Step 5: Perform ABR anaerobic treatment on the biological water distribution unit. The ABR is operated in series with 4 compartments. That is, the wastewater is distributed through the bottom water distribution pipe and then flows up through the packing layer. The packing layer is inoculated with Lanbiqing high-efficiency anaerobic compound bacteria. The Lanbiqing high-efficiency anaerobic compound bacteria include Bacillus brevis, Achromobacterium, Bacillus thuringiensis, and large lysinic bacteria.
[0019] Step Six: The effluent from the ABR anaerobic unit enters the continuous aerobic unit, where Lanbiqing high-efficiency compound aerobic bacteria are added; the Lanbiqing high-efficiency compound aerobic bacteria include Alcaligenes, Proteus, low-nutrient flocculent bacteria, and Sphingomonas.
[0020] Step 7: The effluent from the continuous aerobic unit enters the reflux sedimentation unit, and part of the sludge from the reflux sedimentation unit is returned to the continuous aerobic unit.
[0021] Step 8: Add Lanbiqing high-efficiency nitrifying compound bacteria to the BAF biochemical unit. The Lanbiqing high-efficiency nitrifying compound bacteria include oligotrophomonas, azotocinus paracoccus, and Providencia.
[0022] Step 9: The effluent from the BAF biological treatment unit sequentially enters the flocculation sedimentation unit, the catalytic oxidation unit, and the phosphorus removal sedimentation unit to further remove residual organic matter, phosphorus, and other pollutants from the water.
[0023] The advantages of this device over existing technologies are as follows:
[0024] (1) The use of pretreatment technology reduces pollutants in the water and the impact of high-concentration wastewater on the microorganisms in the subsequent biochemical treatment stage.
[0025] (2) It can treat insecticide wastewater with a high concentration of COD of 19,000 mg / L, and the effluent COD is less than 100 mg / L.
[0026] (3) This device has been verified and has the characteristics of strong load resistance, strong impact resistance, strong tolerance to insecticide production wastewater, stable effluent quality, easy maintenance, and suitable for industrial application. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of a wastewater treatment device for insecticide production according to this utility model.
[0028] Among them, 1-water distribution and regulating unit, 16-water distribution and regulating unit inlet, 17-water distribution and regulating unit outlet; 2-evaporation and desalination unit, 18-evaporation and desalination unit inlet, 19-evaporation and desalination unit outlet; 3-condensate collection unit, 20-condensate collection unit inlet, 21-condensate collection unit outlet; 4-iron-carbon micro-electrolysis unit, 22-iron-carbon micro-electrolysis unit inlet, 23-iron-carbon micro-electrolysis unit outlet; 5-pre-oxidation unit, 24-pre-oxidation unit inlet, 25-pre-oxidation unit outlet; 6- Neutralization aeration unit, 26- Neutralization aeration unit inlet, 27- Neutralization aeration unit outlet; 7- Coagulation sedimentation unit, 28- Coagulation sedimentation unit inlet, 29- Coagulation sedimentation unit outlet; 8- Biological water distribution unit, 30- Biological water distribution unit inlet, 31- Biological water distribution unit outlet; 9- ABR anaerobic unit, 32- ABR anaerobic unit inlet, 33- ABR anaerobic unit outlet; 10- Continuous aerobic unit, 34- Continuous aerobic unit inlet, 35- Continuous aerobic unit outlet; 11- - Reflux sedimentation unit, 36 - Reflux sedimentation unit inlet, 37 - Reflux sedimentation unit outlet; 12 - BAF biochemical unit, 38 - BAF biochemical unit inlet, 39 - BAF biochemical unit outlet; 13 - Flocculation sedimentation unit, 40 - Flocculation sedimentation unit inlet, 41 - Flocculation sedimentation unit outlet; 14 - Catalytic oxidation unit, 42 - Catalytic oxidation unit inlet, 43 - Catalytic oxidation unit outlet; 15 - Phosphorus removal precipitation unit, 44 - Phosphorus removal precipitation unit inlet, 45 - Phosphorus removal precipitation unit outlet. Detailed Implementation
[0029] To make the purpose, technical solution and effects of this device clearer and more explicit, the following detailed description of this device is provided with reference to the accompanying drawings and examples.
[0030] like Figure 1 As shown, the device sequentially includes: a water distribution and adjustment unit 1, an evaporation and desalination unit 2, a condensate collection unit 3, an iron-carbon micro-electrolysis unit 4, a pre-oxidation unit 5, a neutralization and aeration unit 6, a coagulation and sedimentation unit 7, a biological water distribution unit 8, an ABR anaerobic unit 9, a continuous aerobic unit 10, a reflux sedimentation unit 11, a BAF biological unit 12, a flocculation and sedimentation unit 13, a catalytic oxidation unit 14, and a phosphorus removal and sedimentation unit 15.
[0031] The water distribution regulating unit 1 has an inlet 16 and an outlet 17 at its two ends; the evaporation desalination unit 2 has an inlet 18 and an outlet 19 at its two ends; the condensate collection unit 3 has an inlet 20 and an outlet 21 at its two ends; the iron-carbon micro-electrolysis unit 4 has an inlet 22 and an outlet 23 at its two ends; the pre-oxidation unit 5 has an inlet 24 and an outlet 25 at its two ends; the neutralization aeration unit 6 has an inlet 26 and an outlet 27 at its two ends; the coagulation sedimentation unit 7 has an inlet 28 and an outlet 29 at its two ends; and the biochemical water distribution unit 8 has an inlet 16 and an outlet 29 at its two ends. 30. The outlet of the biological water distribution unit is 31; the two ends of the ABR anaerobic unit 9 are: ABR anaerobic unit inlet 32 and ABR anaerobic unit outlet 33, respectively; the two ends of the continuous aerobic unit 10 are: continuous aerobic unit inlet 34 and continuous aerobic unit outlet 35, respectively; the two ends of the reflux sedimentation unit 11 are: reflux sedimentation unit inlet 36 and reflux sedimentation unit outlet 37, respectively; the two ends of the BAF biological unit 12 are: BAF biological unit inlet 38 and BAF biological unit outlet 39, respectively; the two ends of the flocculation sedimentation unit 13 are: flocculation sedimentation unit inlet 40 and flocculation sedimentation unit outlet 41, respectively; the two ends of the catalytic oxidation unit 14 are: catalytic oxidation unit inlet 42 and catalytic oxidation unit outlet 43, respectively; the two ends of the phosphorus removal precipitation unit 15 are: phosphorus removal precipitation unit inlet 44 and phosphorus removal precipitation unit outlet 45, respectively.
[0032] The outlet 17 of the water distribution and regulation unit is connected to the inlet 18 of the evaporation and desalination unit; the outlet 19 of the evaporation and desalination unit is connected to the inlet 20 of the condensate collection unit; the outlet 21 of the condensate collection unit is connected to the inlet 22 of the iron-carbon micro-electrolysis unit; the outlet 23 of the iron-carbon micro-electrolysis unit is connected to the inlet 24 of the pre-oxidation unit; the outlet 25 of the pre-oxidation unit is connected to the inlet 26 of the neutralization and aeration unit; the outlet 27 of the neutralization and aeration unit is connected to the inlet 28 of the coagulation and sedimentation unit; and the inlet 29 of the coagulation and sedimentation unit is connected to the inlet 30 of the biochemical water distribution unit. The inlet 31 of the biological water distribution unit is connected to the inlet 32 of the ABR anaerobic unit; the inlet 33 of the ABR anaerobic unit is connected to the inlet 34 of the continuous aerobic unit; the inlet 35 of the continuous aerobic unit is connected to the inlet 36 of the reflux sedimentation unit; the inlet 37 of the reflux sedimentation unit is connected to the inlet 38 of the BAF biological unit; the inlet 39 of the BAF biological unit is connected to the inlet 40 of the flocculation sedimentation unit; the inlet 41 of the flocculation sedimentation unit is connected to the inlet 42 of the catalytic oxidation unit; and the inlet 43 of the catalytic oxidation unit is connected to the inlet 44 of the phosphorus removal precipitation unit.
[0033] The method of using this device is as follows:
[0034] The water distribution and regulation unit 1 has a COD concentration of approximately 19,000 mg / L, ammonia nitrogen of 1,000 mg / L, and total phosphorus of 4 mg / L.
[0035] Wastewater from the insecticide production is collected in water distribution and regulation unit 1. The wastewater from water distribution and regulation unit 1 is then passed into evaporation and desalination unit 2. After evaporation, the condensate is collected in condensate collection unit 3.
[0036] The condensate collected by the condensate collection unit 3 has its pH adjusted to 1-2 before entering the iron-carbon micro-electrolysis unit 4 for micro-electrolysis treatment. The effluent from the micro-electrolysis unit enters the pre-oxidation unit 5, the neutralization aeration unit 6, and the coagulation sedimentation unit 7 in batches for pretreatment before the biochemical stage.
[0037] IV. The effluent from coagulation and sedimentation unit 7 enters the biochemical water distribution unit 8 to be mixed with the low-concentration wastewater in the plant area, and the pH is adjusted to 6-8.
[0038] 5. The biological water distribution unit is subjected to ABR anaerobic treatment. The ABR is operated in series in 4 compartments. Wastewater is distributed through the bottom water distribution pipe and then flows up through the packing layer. The packing layer is inoculated with Lanbiqing high-efficiency anaerobic compound bacteria. The reaction temperature is controlled at 25-35℃, the dissolved oxygen is 0-0.5mg / L, and the residence time is 24h-48h. The Lanbiqing high-efficiency compound anaerobic bacteria include Bacillus brevis, Achromobacterium, Bacillus thuringiensis, and large lysinic bacteria.
[0039] VI. The effluent from the ABR anaerobic unit 9 enters the continuous aerobic unit 10, where Lanbiqing high-efficiency compound aerobic bacteria are added. The reaction temperature is controlled at 25-35℃, the dissolved oxygen at 2-4 mg / L, and the residence time at 48-72 h. The Lanbiqing high-efficiency compound aerobic bacteria include Alcaligenes, Proteus, low-nutrient flocculent bacteria, and Sphingomonas glutathione.
[0040] 7. The effluent from the continuous aerobic unit 10 enters the reflux settling unit 11, and part of the sludge from the reflux settling unit 11 is returned to the continuous aerobic unit 10.
[0041] 8. In BAF biochemical unit 12, add Lanbiqing high-efficiency nitrifying compound bacteria, control the reaction temperature at 25~35℃, the dissolved oxygen at 0.2~0.5mg / L, and the residence time at 24h~48h. The Lanbiqing high-efficiency nitrifying compound bacteria include oligotrophomonas, azotocinus paracoccus, and Providencia.
[0042] 9. The effluent from BAF biological unit 12 sequentially enters flocculation sedimentation unit 13, catalytic oxidation unit 14 and phosphorus removal sedimentation unit 15 to further remove residual organic matter and phosphorus from the water.
[0043] The following are specific examples: Example
[0044] A pharmaceutical factory in Hunan province had a wastewater treatment project with a COD of 18,625 mg / L, ammonia nitrogen of 225.6 mg / L, and total phosphorus of 4 mg / L. After treatment by this device, the analysis results showed that the effluent COD was less than 100 mg / L, ammonia nitrogen less than 15 mg / L, and total phosphorus less than 0.5 mg / L, meeting the Class I standard.
[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.
Claims
1. A wastewater treatment device for insecticide production, characterized in that, The device comprises, in sequence: Water distribution and regulation unit (1), evaporation and desalination unit (2), condensate collection unit (3), iron-carbon micro-electrolysis unit (4), pre-oxidation unit (5), neutralization and aeration unit (6), coagulation and sedimentation unit (7), biological water distribution unit (8), ABR anaerobic unit (9), continuous aerobic unit (10), reflux sedimentation unit (11), BAF biological unit (12), flocculation and sedimentation unit (13), catalytic oxidation unit (14), phosphorus removal and sedimentation unit (15); The two ends of the water distribution regulating unit (1) are: water distribution regulating unit inlet (16) and water distribution regulating unit outlet (17); the two ends of the evaporation desalination unit (2) are: evaporation desalination unit inlet (18) and evaporation desalination unit outlet (19); the two ends of the condensate collection unit (3) are: condensate collection unit inlet (20) and condensate collection unit outlet (21); the two ends of the iron-carbon micro-electrolysis unit (4) are: iron-carbon micro-electrolysis unit inlet (22) and iron-carbon micro-electrolysis unit outlet (23); the two ends of the pre-oxidation unit (5) are: pre-oxidation unit inlet (24) and pre-oxidation unit outlet (25); the two ends of the neutralization aeration unit (6) are: neutralization aeration unit inlet (26) and neutralization aeration unit outlet (27); the two ends of the coagulation sedimentation unit (7) are: coagulation sedimentation unit inlet (28) and coagulation sedimentation unit outlet (29); the two ends of the biochemical water distribution unit (8) are: biochemical water distribution unit inlet. (30) Biochemical water distribution unit outlet (31); The two ends of the ABR anaerobic unit (9) are: ABR anaerobic unit inlet (32) and ABR anaerobic unit outlet (33); The two ends of the continuous aerobic unit (10) are: continuous aerobic unit inlet (34) and continuous aerobic unit outlet (35); The two ends of the reflux sedimentation unit (11) are: reflux sedimentation unit inlet (36) and reflux sedimentation unit outlet (37); The two ends of the BAF biochemical unit (12) are: BAF biochemical unit inlet (38) and BAF biochemical unit outlet (39); The two ends of the flocculation sedimentation unit (13) are: flocculation sedimentation unit inlet (40) and flocculation sedimentation unit outlet (41); The two ends of the catalytic oxidation unit (14) are: catalytic oxidation unit inlet (42) and catalytic oxidation unit outlet (43); The two ends of the phosphorus removal precipitation unit (15) are: phosphorus removal precipitation unit inlet (44) and phosphorus removal precipitation unit outlet (45); The outlet (17) of the water distribution and regulation unit is connected to the inlet (18) of the evaporation and desalination unit; the outlet (19) of the evaporation and desalination unit is connected to the inlet (20) of the condensate collection unit; the outlet (21) of the condensate collection unit is connected to the inlet (22) of the iron-carbon micro-electrolysis unit; the outlet (23) of the iron-carbon micro-electrolysis unit is connected to the inlet (24) of the pre-oxidation unit; the outlet (25) of the pre-oxidation unit is connected to the inlet (26) of the neutralization and aeration unit; the outlet (27) of the neutralization and aeration unit is connected to the inlet (28) of the coagulation and sedimentation unit; and the outlet (29) of the coagulation and sedimentation unit is connected to the inlet (30) of the biochemical water distribution unit. The outlet (31) of the biochemical water distribution unit is connected to the inlet (32) of the ABR anaerobic unit; the outlet (33) of the ABR anaerobic unit is connected to the inlet (34) of the continuous aerobic unit; the outlet (35) of the continuous aerobic unit is connected to the inlet (36) of the reflux sedimentation unit; the outlet (37) of the reflux sedimentation unit is connected to the inlet (38) of the BAF biochemical unit; the outlet (39) of the BAF biochemical unit is connected to the inlet (40) of the flocculation sedimentation unit; the outlet (41) of the flocculation sedimentation unit is connected to the inlet (42) of the catalytic oxidation unit; and the outlet (43) of the catalytic oxidation unit is connected to the inlet (44) of the phosphorus removal precipitation unit.
2. The insecticide production wastewater treatment device according to claim 1, characterized in that, The reflux settling unit (11) is provided with a reflux port and connected to the inlet (34) of the continuous aerobic unit.
3. The insecticide production wastewater treatment device according to claim 1, characterized in that, The ABR anaerobic unit (9) adopts a baffle plate anaerobic treatment process, and pore-expanding modified granular activated carbon is added to the ABR anaerobic unit (9).
4. The insecticide production wastewater treatment device according to claim 1, characterized in that, The continuous aerobic unit (10) is equipped with a microporous aeration system and a drainage system, and 30-80 mesh activated carbon is added as filler.
5. The insecticide production wastewater treatment device according to claim 1, characterized in that, The coagulation sedimentation unit (7), flocculation sedimentation unit (13) and phosphorus removal sedimentation unit (15) are all equipped with sludge treatment systems to discharge excess sludge.
6. The insecticide production wastewater treatment device according to claim 1, characterized in that, The ABR anaerobic unit (9) is supplemented with Lanbiqing high-efficiency compound anaerobic bacteria; the Lanbiqing high-efficiency compound anaerobic bacteria include Bacillus brevis, Achromobacterium, Bacillus thuringiensis, and large lysinic bacteria; The continuous aerobic unit (10) is supplemented with Lanbiqing high-efficiency compound aerobic bacteria, which include Alcaligenes, Proteus, low-nutrient flocculent bacteria, and Sphingomonas. The BAF biochemical unit (12) is injected with Lanbiqing high-efficiency nitrifying compound bacteria; the nitrifying compound bacteria include oligotrophomonas, nitrogen-eating paracocci, and Providencia.
7. The insecticide production wastewater treatment device according to claim 1, characterized in that, The sludge portion of the reflux settling unit (11) is returned to the continuous aerobic unit (10) through the reflux port and the inlet (34) of the continuous aerobic unit.