CN214829766U - Traditional Chinese medicine wastewater treatment system difficult to biochemically treat - Google Patents
Traditional Chinese medicine wastewater treatment system difficult to biochemically treat Download PDFInfo
- Publication number
- CN214829766U CN214829766U CN202120742401.XU CN202120742401U CN214829766U CN 214829766 U CN214829766 U CN 214829766U CN 202120742401 U CN202120742401 U CN 202120742401U CN 214829766 U CN214829766 U CN 214829766U
- Authority
- CN
- China
- Prior art keywords
- tank
- primary
- mbbr
- pool
- chinese medicine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a traditional Chinese medicine wastewater treatment system difficult to carry out biochemical treatment. The method comprises the following steps: the system comprises a coagulation tank, a Fenton oxidation tank, an adjusting tank, an anaerobic reactor, a primary MBBR biological pool, a primary sedimentation tank, a secondary MBBR biological pool, a secondary sedimentation tank, an MBR pool and a clean water pool. The utility model discloses a design parameter of difficult biodegradable traditional chinese medicine waste water treatment process is explored in the process verification nature test, provides design parameter that can refer to for engineering design and engineering implementation. Aiming at CODcrThe traditional Chinese medicine wastewater which is high in concentration, complex in composition and difficult to biodegrade is treated by adopting a pretreatment process, Fenton oxidation process and a biochemical process. How to solveThe method is mainly characterized in that the effluent of the traditional Chinese medicine wastewater can not reach the standard by the traditional physicochemical method and biochemical method combined process.
Description
Technical Field
The utility model belongs to the environmental protection industry relates to a traditional chinese medicine effluent disposal system of difficult biochemical treatment.
Background
The traditional Chinese medicine wastewater is generated in the processes of raw material washing, medicine extraction, washing and the like in traditional Chinese medicine production, and is mainly characterized by high concentration of organic pollutants, high content of suspended matters, complex and various biochemical inhibition factors and the like, and the treatment difficulty of the conventional process is increased. Aiming at the water quality characteristics of the traditional Chinese medicine wastewater, the existing treatment method mainly comprises a combined process of a physical treatment method and a biological treatment method.
The physical and chemical method is to separate the pollutant from waste water to purify water. The common physical and chemical treatment method comprises the following steps: coagulating sedimentation, air flotation, adsorption, low-pressure distillation, electrolysis and the like. The physicochemical method has higher wastewater treatment cost and high labor intensity, is not suitable for large-scale wastewater treatment, and is difficult to reach the standard when the physicochemical method is used alone to treat the traditional Chinese medicine wastewater. Therefore, the physical and chemical method is difficult to be a separate treatment method.
The biological treatment method is a water treatment method which reduces the concentration of pollutants in the wastewater and leads the effluent to reach the standard by treating degradable pollutants in the wastewater through microorganisms. The biological treatment method has the characteristics of economy, high efficiency and the like, and is the most common water treatment method in the current wastewater treatment. The biochemical treatment method of the traditional Chinese medicine wastewater generally comprises the following steps: aerobic biological methods and anaerobic biological methods. Although the biological treatment method has the advantages of economy, high efficiency and the like, the biological treatment only treats degradable organic matters in the wastewater, has no good effect of removing substances which are difficult to be biodegraded, and can inhibit the growth of microorganisms when the biological toxicity of the wastewater is high, thereby influencing the treatment effect.
Therefore, for traditional Chinese medicine wastewater which is poor in biodegradability and difficult to biodegrade, the effluent cannot reach the standard by the traditional physical and chemical method and biochemical method combined process, and a targeted process needs to be searched for so as to achieve efficient and reliable treatment effect.
Disclosure of Invention
In order to achieve the above object, the present invention discloses the following technical contents:
the utility model discloses mainly solved how to handle a biochemical nature is poor, difficult biodegradable's traditional chinese medicine waste water, the focus has investigated waste water treatment technology and waste water treatment and has added the dose, and main difficult point lies in that traditional materialization method, biochemical method allies oneself with technology can't make this kind of traditional chinese medicine waste water go out water up to standard.
In order to achieve the above object, the present invention discloses the following technical contents:
a traditional Chinese medicine wastewater treatment system difficult to biochemically treat is characterized by comprising: a coagulation tank 1, a Fenton oxidation tank 2, a regulating tank 3, an anaerobic reactor 4, a primary MBBR biological tank 5, a primary sedimentation tank 6, a secondary MBBR biological tank 7, a secondary sedimentation tank 8 and an MBR tank 9 clear water tank 10;
wherein thoughtlessly congeal jar 1 and fenton oxidation jar 2 and pass through pipeline and valve connection, fenton oxidation jar 2, pass through pipeline, valve and elevator pump 11 with adjusting tank 3 and be connected, anaerobic reactor 4 passes through pipeline and valve connection with one-level MBBR biological pond 5, and one-level MBBR biological pond 5 and one-level sedimentation tank 6, biological pond 7 of second grade MBBR, second grade sedimentation tank 8, MBR pond 9, clean water basin 10 link to each other in proper order "
The primary MBBR biological tank 5 contains suspended fillers, an aeration device is arranged at the tank bottom and connected with a fan 12, and a steel wire filter screen is arranged at a water outlet of the tank wall of the primary MBBR biological tank 5 and connected with a primary sedimentation tank 6; the primary sedimentation tank 6 internally comprises a central guide cylinder, and the bottom of the tank is provided with a sludge return pipeline 15 and a sludge return pump 16 which are sequentially connected with the primary MBBR biological tank 5 and the secondary MBBR biological tank 7;
the primary MBBR biological pool 5 is divided into three lattices, a water outlet is formed in the wall of each lattice, a steel wire filter screen water outlet is formed in the water outlet, and a bypass pipeline 17 is sequentially connected with a second lattice of the primary MBBR biological pool 5, a third lattice MBBR pool or a primary sedimentation pool 6 and a secondary MBBR biological pool 7;
the MBR tank 9 is sequentially connected with a suction pump 13 and a clean water tank 10; the MBR tank 9 is internally provided with an MBR membrane bioreactor, the clean water tank 10 is connected with a backwashing pump 14, and the water outlet end of the backwashing pump is connected with the MBR membrane bioreactor in the MBR tank 9.
The utility model further discloses a method that traditional chinese medicine effluent disposal system of difficult biochemical treatment handled, its characterized in that goes on according to following step:
(1) 2t of wastewater is injected into the coagulation tank, 15L of NaOH is added, the mixture is uniformly stirred to adjust the pH value, 25L of PAC is added as a coagulant for continuous stirring, 6L of PAM is added as a coagulant aid, and then standing and precipitation are carried out;
(2) after the mixed solution is precipitated, the supernatant automatically flows into a Fenton oxidation tank;
(3) lifting the supernatant after Fenton oxidation to an adjusting tank by a pump to comprehensively adjust the water quality and the water quantity, wherein 1.2t of domestic sewage (injected by the pump from the outside) and 0.4t of supernatant after Fenton oxidation are mixed, and the COD (chemical oxygen demand) of the waste water is 6000mg/L after the mixed solution is stirred;
(4) the outlet water of the regulating tank is lifted to an anaerobic reactor through a pump;
(5) the effluent of the anaerobic reactor automatically flows to a primary MBBR biological tank to be used as a secondary treatment process; the primary MBBR biological tank contains suspended filler as a microorganism growth carrier, an aeration device is arranged at the bottom of the tank and is connected with a fan, the tank is divided into three cells, a water outlet is formed in the wall of each cell, a steel wire filter screen is arranged at the water outlet to prevent the suspended filler from entering the next cell, a steel wire filter screen water outlet is formed in each of the second cell and the third cell, and when the tank body is blocked or the water quality is better, the suspended filler can cross the MBBR tank body of the third cell or the primary sedimentation tank to enter the next tank body through a cross-flow pipeline;
(6) effluent of the first-level MBBR biological tank flows to the second-level MBBR biological tank automatically for advanced treatment.
The utility model further discloses the application of the traditional Chinese medicine wastewater treatment method in improving the quality of the traditional Chinese medicine wastewater by adopting a traditional Chinese medicine wastewater treatment system which is difficult to carry out biochemical treatment; the improvement of the water quality of the traditional Chinese medicine wastewater refers to: improve CODcrAnd BOD5。
The experimental results show that: containing high concentration of CODcrAnd BOD5The pretreatment of the traditional Chinese medicine wastewater which is difficult to biodegrade reduces CODcrAnd BOD5As a result, the toxicity of the polymer alcohol is reduced. Test results show that the quality of the traditional Chinese medicine wastewater treated by the process is greatly improved, and the effluent index value is superior to that of local discharge in Tianjin CityThe water standard (DB 12/356-2018).
The utility model discloses more detailed description is as follows:
1. a coagulation tank: the Chinese medicine wastewater to be treated is pumped to a coagulation tank. Coagulation is an important pretreatment method for water treatment to remove fine suspended substances and colloidal pollutants in water. The process selects inorganic high molecular compound polyaluminium chloride (PAC) as coagulant and anionic Polyacrylamide (PAM) as coagulant aid. PAC has stronger cross-linking adsorption performance, good flocculation effect and less dosage, and is easy to form alum floc. PAM can promote the increase of floccules and accelerate the precipitation. The PAC and PAM are added to enhance the removal of fine suspended matters, colloidal pollutants and partial COD in watercrAnd BOD5. Specifically, the method comprises the following steps: 2t of wastewater is injected into the coagulation tank, 15L of NaOH is added and stirred uniformly to adjust the pH value, 25L of PAC (polyaluminium chloride) is added as a coagulant to be stirred continuously, 6L of PAM (polyacrylamide) is added as a coagulant aid and then the mixture is kept stand for precipitation.
2. A Fenton oxidation tank: when supernatant fluid automatically flows into a Fenton oxidation pond after mixed liquor is precipitated to treat organic wastewater difficult to biodegrade, the Fenton method has the advantages that other methods are incomparable, and the method has very wide prospect in practical application. The method can generate hydroxyl free radicals with strong oxidizing ability, accelerate the oxidation of organic matters and reducing substances, and effectively improve the biodegradability of the wastewater. After advanced oxidation, macromolecular organic matters which are difficult to biodegrade in the wastewater can be decomposed into micromolecular organic matters. Specifically, the method comprises the following steps: injecting supernatant into 1.5t coagulation tank in Fenton oxidation tank, adding 1L 10% H2SO4Adjusting pH to about 3, adding FeSO4•7H2O25 kg was stirred and 30L H was added2O2After fully reacting for 2h, adding 50% NaOH to adjust the pH value to be neutral, and standing for precipitation.
3. Adjusting the tank: and lifting the supernatant after Fenton oxidation to an adjusting tank by a pump to comprehensively adjust the water quality and the water quantity. The top of the adjusting tank is provided with a stirrer which can homogenize and homogenize the wastewater entering the subsequent anaerobic reactor. The effluent of the regulating tank enters the anaerobic reactor through a lift pump. The adjusting tank is connected with the anaerobic reactor through a pipeline, a valve and a lift pump.
4. An anaerobic reactor: the effluent of the adjusting tank is pumped to an anaerobic reactor, and organic matters in the sewage are decomposed, metabolized and digested by anaerobic bacteria, so that the content of the organic matters in the sewage is greatly reduced. The anaerobic biological method has the advantages of high organic matter load, low sludge yield, low energy consumption, wide application range and the like, but the treatment degree often cannot reach the standard of direct discharge, and aerobic biological treatment is generally connected in series after the treatment, so as to realize further treatment. The anaerobic reactor contains anaerobic sludge, and the top of the anaerobic reactor is provided with a stirrer which is beneficial to the full contact of microorganisms in the sludge and the wastewater and the absorption and decomposition of organic matters in the wastewater, thereby achieving the purpose of wastewater treatment. Effluent of the anaerobic reactor automatically flows into the primary MBBR biological tank from the top of the anaerobic reactor. The anaerobic reactor is connected with the first-stage MBBR biological tank through a pipeline and a valve.
5. First-level MBBR biological pool: anaerobic effluent automatically flows to a first-level MBBR biological pool to be used as a secondary treatment process. Wherein most biochemical organic pollutants are fully contacted with the biological film on the filler under the stirring of the aeration bubbles and decomposed into CO2And H2And O. The tank contains suspended filler as microbe growth carrier, and the bottom of the tank is provided with an aeration device connected with a fan. The one-level MBBR biological tank is divided into three cells, a water outlet is formed in the wall of each cell, and a steel wire filter screen is arranged at the water outlet to prevent suspended fillers from entering the next cell. The second grid and the third grid are provided with a plurality of steel wire filter screen water outlets.
Under normal conditions, the valve A, D, E is closed, and wastewater enters the primary sedimentation tank through the valve B, C and then enters the secondary MBBR tank through the valve F; the valve D is connected with a sludge return pipeline 15, and sludge at the bottom of the primary sedimentation tank is pumped by a sludge return pump and can be used for adjusting the sludge amount in the primary MBBR tank and the secondary MBBR tank; because the quality and the quantity of the industrial wastewater are changed greatly, when the quality of the treated wastewater is good, the valve B can be closed, the valve A is opened, the wastewater passes through the third cell body of the first-stage MBBR and enters the first-stage sedimentation tank through the valve A, C, and then enters the second-stage MBBR through the valve F;
when the wastewater quality is clear and does not need to be precipitated or the primary sedimentation tank is blocked, the valve C can be closed, the valve E is opened, and the wastewater passes through the primary sedimentation tank and enters the secondary MBBR tank through the valve E, F. When the pool body is blocked or the water quality is better, the water can pass through the third-grid MBBR pool body or the first-level sedimentation pool by the cross-flow pipeline 17 to enter the second-level MBBR pool.
The filler in the first-level MBBR biological tank is in a fluidized state under the action of aeration and then can be fully contacted with sewage, and microorganisms attached to the filler enable nitrification reaction and denitrification reaction to exist simultaneously. Waste water in the one-level MBBR biological pond flows automatically and gets into the one-level sedimentation tank, and there is the steel wire filter screen in order to prevent that suspended filler gets into the one-level sedimentation tank in the delivery port department on the one-level MBBR biological pond pool wall.
6. A first-stage sedimentation tank: the effluent of the first-level MBBR biological tank flows to the second-level MBBR biological tank for advanced treatment through the first-level sedimentation tank. The pool contains a central guide cylinder, and sewage flows through the bell mouth at the bottom of the pipe and the reflecting plate from top to bottom of the central pipe, so that sludge precipitation is facilitated. The bottom of the pool is provided with a sludge outlet which flows to all levels of MBBR pools through a sludge return pipeline and a sludge return pump.
7. A second-level MBBR biological pool: the structure is the same level of MBBR biological pond, and waste water flows into the second grade sedimentation tank by gravity.
8. A secondary sedimentation tank: the structure is the same as that of the sedimentation tank, and wastewater automatically flows into the MBR tank.
9. MBR pool: the tank contains an MBR membrane bioreactor, and the wastewater enters a clean water tank after passing through the reactor through a suction pump. The sewage after biological treatment also contains a considerable amount of pollutants and a small amount of bacteria, and can reach the standard after advanced treatment. A Membrane Bioreactor (MBR) is selected as an advanced treatment process, the reactor replaces a secondary sedimentation tank in the traditional activated sludge with high-efficiency Membrane separation effect to reduce the sludge yield and improve the effluent quality, and the removal of suspended solids, pathogenic bacteria and viruses is particularly remarkable. The inner membrane component can effectively remove ammonia nitrogen, suspended matters, bacteria, viruses and the like in water. And discharging the effluent after the effluent is qualified after treatment.
10. A clean water tank: the clean water tank is connected with a backwashing pump, and the water outlet end of the backwashing pump is connected with the MBR membrane bioreactor in the MBR tank for cleaning the MBR membrane bioreactor. The wastewater after being treated reaches the standard is discharged to the external water body from the clean water tank.
The utility model has the advantages as follows:
the high efficiency of the process for treating the traditional Chinese medicine wastewater is preliminarily verified through the experimental result of the small test (table 1).
TABLE 1 Fenton Pre-Process results (unit: mg/L, pH dimensionless)
In comparison with the conventional biochemical process (Table 2), it can be seen that: the process has the advantages of low investment, small occupied area, high CODcr removal rate and the like.
TABLE 2 comprehensive comparison of the Sewage treatment protocols
Compared with the prior art, the traditional Chinese medicine wastewater treatment system difficult to biochemically treat and the treatment method thereof have the positive effects that:
(1) the Fenton oxidation method decomposes macromolecular organic matters which are difficult to degrade in water, and reduces the operation load of the subsequent biochemical treatment process;
(2) optimizes the dosage of the drugs (namely coagulation drugs PAC and PAM and Fenton oxidation drug FeSO) in the treatment process4•7H2O、H2O2Dosage) to exert the function of each process section to a great extent.
(3) The arrangement of the cross-flow pipeline can prevent the whole equipment from being broken down when the sudden equipment is blocked, and can flexibly deal with the condition of large change of the quality and the quantity of the industrial wastewater (partial process can be cancelled through the cross-flow pipeline when the water quality is good), thereby avoiding the waste of resources.
Drawings
FIG. 1 is a schematic view of a traditional Chinese medicine wastewater treatment system which is difficult to biochemically treat;
FIG. 2 is a process flow diagram of the apparatus;
wherein
1. A coagulation tank; 2. A Fenton oxidation tank; 3. a conditioning tank; 4. an anaerobic reactor;
5. a first-level MBBR biological pool; 6. a first-stage sedimentation tank; 7. a second-level MBBR biological pool;
8. a secondary sedimentation tank; 9. An MBR tank; 10. A clean water tank; 11. a lift pump;
12. a fan; 13. A suction pump; 14. A backwash pump; 15. a sludge return line.
16. A sludge reflux pump 17 and a bypass pipeline; A-F and a valve.
Detailed Description
The invention is described below by means of specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. Additionally, the embodiments should be considered illustrative, and not restrictive, of the scope of the invention, which is defined solely by the claims. It will be apparent to those skilled in the art that various changes or modifications can be made in the components and amounts of the materials used in the embodiments without departing from the spirit and scope of the invention. The raw materials and reagents used in the utility model are commercially available, such as polyaluminium chloride, suspension filler, polyacrylamide, etc.
Example 1
A traditional Chinese medicine wastewater treatment system difficult to biochemically treat is characterized by comprising: a coagulation tank 1, a Fenton oxidation tank 2, a regulating tank 3, an anaerobic reactor 4, a primary MBBR biological tank 5, a primary sedimentation tank 6, a secondary MBBR biological tank 7, a secondary sedimentation tank 8 and an MBR tank 9 clear water tank 10;
wherein thoughtlessly congeal jar 1 and fenton oxidation jar 2 and pass through pipeline and valve connection, fenton oxidation jar 2, pass through pipeline, valve and elevator pump 11 with adjusting tank 3 and be connected, anaerobic reactor passes through pipeline and valve connection with the biological pond of one-level MBBR, biological pond of one-level MBBR and one-level sedimentation tank, biological pond of second grade MBBR, second grade sedimentation tank 8, MBR pond 9, clean water basin 10 link to each other in proper order "
The primary MBBR biological tank contains suspended fillers, an aeration device is arranged at the tank bottom and connected with a fan 12, and a steel wire filter screen is arranged at a water outlet of the wall of the primary MBBR biological tank and connected with a primary sedimentation tank; the primary sedimentation tank contains a central guide cylinder, and the bottom of the tank is provided with a sludge return pipeline 15 and a sludge return pump 16 which are sequentially connected with the primary MBBR biological tank and the secondary MBBR biological tank 7;
the primary MBBR biological pool is divided into three lattices, a water outlet is formed in the wall of each lattice, a steel wire filter screen water outlet is formed in the water outlet, and a cross-flow pipeline 17 is sequentially connected with a second lattice, a third lattice MBBR pool or a primary sedimentation pool and a secondary MBBR biological pool 7 of the primary MBBR biological pool;
the MBR tank 9 is sequentially connected with a suction pump 13 and a clean water tank 10; the MBR tank is internally provided with an MBR membrane bioreactor, the clean water tank 10 is connected with a backwashing pump 14, and the water outlet end of the backwashing pump is connected with the MBR membrane bioreactor in the MBR tank.
Example 2
A method for treating traditional Chinese medicine wastewater difficult to biochemically treat is characterized by comprising the following steps:
(1) 2t of wastewater is injected into the coagulation tank, 15L of NaOH is added, the mixture is uniformly stirred to adjust the pH value, 25L of PAC is added as a coagulant for continuous stirring, 6L of PAM is added as a coagulant aid, and then standing and precipitation are carried out;
(2) after the mixed solution is precipitated, the supernatant automatically flows into a Fenton oxidation tank;
(3) lifting the supernatant after Fenton oxidation to an adjusting tank by a pump to comprehensively adjust the water quality and the water quantity, wherein 1.2t of domestic sewage (injected by the pump from the outside) and 0.4t of supernatant after Fenton oxidation are mixed, and the COD (chemical oxygen demand) of the waste water is 6000mg/L after the mixed solution is stirred;
(4) the outlet water of the regulating tank is lifted to an anaerobic reactor through a pump;
(5) the effluent of the anaerobic reactor automatically flows to a primary MBBR biological tank to be used as a secondary treatment process; the primary MBBR biological tank contains suspended filler as a microorganism growth carrier, an aeration device is arranged at the bottom of the tank and is connected with a fan, the tank is divided into three cells, a water outlet is formed in the wall of each cell, a steel wire filter screen is arranged at the water outlet to prevent the suspended filler from entering the next cell, a steel wire filter screen water outlet is formed in each of the second cell and the third cell, and when the tank body is blocked or the water quality is better, the suspended filler can cross the MBBR tank body of the third cell or the primary sedimentation tank to enter the next tank body through a cross-flow pipeline;
(6) effluent of the first-level MBBR biological tank flows to the second-level MBBR biological tank automatically for advanced treatment.
Example 3
(introduction of practical application)
Aiming at the production wastewater and domestic sewage of a certain Chinese medicine factory, a pilot test is carried out on the spot to verify the feasibility of the utility model.
(1) Amount of inlet water
According to the different wastewater discharge conditions of a certain Chinese medicine factory (Table 3) provided by the environmental evaluation, the total wastewater yield is determined to be 223.53 m3The high concentration wastewater is 26.43 m3D, low concentration waste water is 197.1 m3(d) domestic sewage yield of 12.4 m3And d. Thus, the inlet water composition of the pilot test is set to be 11.82% of high-concentration wastewater, 88.18% of low-concentration wastewater and 5.55% of domestic sewage.
TABLE 3 concentration and ratio of wastewater discharged from a Chinese medicine factory
(2) Quality of inlet water
Comprehensive sampling detection is carried out on the drainage water of various processes in different workshops of the traditional Chinese medicine factory in the early stage (table 4), so that the quality of the inlet water of the test can be further determined.
TABLE 4 Water quality statistics of influent water (mg/L, non-dimensional pH)
The test result shows that the quality of the production wastewater of the three workshops of the traditional Chinese medicine factory is unstable: pH is 4.11-9.69, CODcrIn the range of 16-34800mg/L, BOD50.5-4890 mg/L, 0.02-3.25mg/L ammonia nitrogen, 0.13-87.10mg/L total nitrogen and 0.01-1.58mg/L total phosphorus. In general, the nitrogen and the phosphorus in the production wastewater are insufficient, and COD is mainly concerned in the removal indexcrAnd BOD5。
According to the detected CODcrAnd BOD5Value, corresponding to BOD5/CODcrThe value (hereinafter referred to as B/C) can be used for judging the biodegradability of wastewater, and when the B/C value is more than 30%, the wastewater can be biodegraded. The B/C value of the wastewater discharged from three workshops of six Chinese medicine factories fluctuates greatly, and the minimum value can reach 9.28 percent, which proves that the wastewater has high water quality fluctuation and poor biodegradability.
The high-concentration wastewater in the project has CODcrHigh concentration, complex composition and difficult biodegradation, wherein the high molecular alcohols have certain sterilization and bacteriostasis effects, can influence the normal operation of a subsequent biochemical system, and the high-concentration wastewater in the test needs to be pretreated to reduce CODcrThereby reducing the toxicity of the polymer alcohol. The pretreatment technology comprises the process links of chemical coagulation, Fenton oxidation and the like. Therefore, the wastewater of the project is determined to be suitable for being treated by adopting a combined process of pretreatment, a chemical method and a biochemical method.
(3) Test results
Test results show that the quality of the traditional Chinese medicine wastewater treated by the process is greatly improved, the effluent index value is superior to the three-level discharge standard in the drainage Standard of Tianjin City (DB 12/356-2018), and specific relevant parameters are shown in Table 5:
in Table 5, the results of the third party test (unit: mg/L, pH dimensionless)
Note: "ND" means that the detection result is less than the detection limit
TABLE 6 Tertiary discharge Standard of Tianjin City local drainage Standard
Claims (1)
1. A traditional Chinese medicine wastewater treatment system difficult to biochemically treat is characterized by comprising: the system comprises a coagulation tank (1), a Fenton oxidation tank (2), a regulating tank (3), an anaerobic reactor (4), a primary MBBR biological tank (5), a primary sedimentation tank (6), a secondary MBBR biological tank (7), a secondary sedimentation tank (8) and an MBR tank (9), and a clean water tank (10);
wherein the coagulation tank (1) is connected with the Fenton oxidation tank (2) through a pipeline and a valve, the Fenton oxidation tank (2) is connected with the regulating tank (3) through a pipeline, a valve and a lift pump (11), the anaerobic reactor (4) is connected with the first-stage MBBR biological pond (5) through a pipeline and a valve, and the first-stage MBBR biological pond (5) is sequentially connected with the first-stage sedimentation tank (6), the second-stage MBBR biological pond (7), the second-stage sedimentation tank (8), the MBR pond (9) and the clean water pond (10);
the primary MBBR biological tank (5) contains suspended fillers, an aeration device is arranged at the bottom of the tank and connected with a fan (12), and a steel wire filter screen is arranged at a water outlet of the wall of the primary MBBR biological tank (5) and connected with a primary sedimentation tank (6); the primary sedimentation tank (6) is internally provided with a central guide cylinder, and the bottom of the tank is provided with a sludge return pipeline (15) and a sludge return pump (16) which are sequentially connected with the primary MBBR biological tank (5) and the secondary MBBR biological tank (7);
the primary MBBR biological pool (5) is divided into three cells, a water outlet is formed in the wall of each cell, a steel wire filter screen water outlet is formed in the water outlet, and a bypass pipeline (17) is sequentially connected with a second cell, a third cell MBBR pool or a primary sedimentation pool (6) and a secondary MBBR biological pool (7) of the primary MBBR biological pool (5);
the MBR tank (9) is sequentially connected with a suction pump (13) and a clean water tank (10); the MBR tank (9) is internally provided with an MBR membrane bioreactor, the clean water tank (10) is connected with a backwashing pump (14), and the water outlet end of the backwashing pump is connected with the MBR membrane bioreactor in the MBR tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742401.XU CN214829766U (en) | 2021-04-13 | 2021-04-13 | Traditional Chinese medicine wastewater treatment system difficult to biochemically treat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742401.XU CN214829766U (en) | 2021-04-13 | 2021-04-13 | Traditional Chinese medicine wastewater treatment system difficult to biochemically treat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214829766U true CN214829766U (en) | 2021-11-23 |
Family
ID=78763434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120742401.XU Active CN214829766U (en) | 2021-04-13 | 2021-04-13 | Traditional Chinese medicine wastewater treatment system difficult to biochemically treat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214829766U (en) |
-
2021
- 2021-04-13 CN CN202120742401.XU patent/CN214829766U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3611135B1 (en) | Device and method for pharmaceutical wastewater treatment with high efficiency resource recovery and low energy consumption | |
| CN107473513B (en) | Bamboo product wastewater Fenton treatment device and method | |
| CN210711175U (en) | Kitchen garbage anaerobic digestion waste water non-membrane method processing system | |
| CN109111019B (en) | Method and system for treating high-concentration and degradation-resistant chemical synthesis pharmaceutical wastewater | |
| CN112624510A (en) | Sewage advanced treatment combined device and process | |
| CN113371923A (en) | Chemical wastewater treatment system and treatment method | |
| CN110282825B (en) | Landfill leachate treatment method and system | |
| CN111087131A (en) | Biochemical treatment method for pharmaceutical wastewater | |
| CN111847800A (en) | High-concentration metal processing cutting fluid wastewater treatment process | |
| CN214829766U (en) | Traditional Chinese medicine wastewater treatment system difficult to biochemically treat | |
| CN111302559A (en) | Kitchen waste fermentation liquor treatment method and system | |
| CN217535756U (en) | Emulsion explosive waste water processing system | |
| CN216236438U (en) | Pretreatment system for garbage extrusion leachate | |
| CN212687845U (en) | Pharmaceutical wastewater comprehensive treatment device | |
| CN216808506U (en) | Kitchen and kitchen garbage and wastewater treatment system | |
| CN109534606A (en) | A kind of fermented pharmaceutical waste water treatment process | |
| CN112125485B (en) | Method for preparing polymeric ferric sulfate by taking iron-containing sludge of sewage treatment plant as iron source | |
| CN112979100A (en) | Traditional Chinese medicine wastewater treatment system difficult to biochemically treat and treatment method thereof | |
| CN211284066U (en) | Kitchen waste fermentation liquor treatment system | |
| CN113185066A (en) | Sewage treatment method for high-polymer high-salt oil extraction wastewater | |
| CN110451635B (en) | Biological treatment system and method for high-salt high-organic matter industrial wastewater | |
| CN112499894A (en) | Integrated MBBR (moving bed biofilm reactor) process for treating high-organic high-ammonia nitrogen industrial wastewater | |
| CN112811738A (en) | Multi-stage purification treatment method for waste water of refuse landfill | |
| CN111762961A (en) | Kitchen wastewater treatment method | |
| CN212174734U (en) | Chemical synthesis type pharmaceutical wastewater treatment system for pollutants difficult to degrade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |