CN116040890A

CN116040890A - Multistage self-defined circulating current emergency treatment method and equipment for industrial sewage

Info

Publication number: CN116040890A
Application number: CN202310268061.5A
Authority: CN
Inventors: 常莎; 陈思莉; 黄大伟; 邴永鑫; 杨裕茵; 冯立师; 郑文丽; 卢洪殿
Original assignee: Guangzhou Nankun Environmental Protection Technology Co ltd; South China Institute of Environmental Science of Ministry of Ecology and Environment
Current assignee: Guangzhou Nankun Environmental Protection Technology Co ltd; South China Institute of Environmental Science of Ministry of Ecology and Environment
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-05-02

Abstract

The invention discloses a multi-stage self-defined circulating type circulating emergency treatment method and equipment for industrial sewage, wherein the method comprises the following steps: s1: setting industrial sewage self-defined circulating type circulating emergency treatment equipment; s2: setting a process and working parameters of each local area; s3: water is led into, and the outer ring water bin is treated in a zoning way; s4: time-sharing biochemical treatment of the inner ring flowing water bin; s5: and (3) carrying out time-sharing three-stage disinfection and deodorization treatment, wherein the disinfected reclaimed water finally flows out of the concentric circle self-defined circulating reactor from the upper part of the inner ring running water bin. According to the invention, by synchronously improving treatment equipment and technology and adopting standardized treatment equipment, custom arrangement and combination of multi-stage multi-treatment technology are realized by adjusting the equipment, operators flexibly adjust the equipment and technology according to different pollutant types and concentrations contained in different sewage, and the requirements of treating various industrial sewage, sewage of sudden water pollution events and the like can be met by using one set of equipment and supporting different multi-stage multi-treatment technology.

Description

Multistage self-defined circulating current emergency treatment method and equipment for industrial sewage

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to a multistage self-defined circulating type circulation emergency treatment method and equipment for industrial sewage and emergency polluted water for water treatment of various complex industries.

Background

The urban and industrialized development of China is rapid, a large amount of industrial wastewater (such as papermaking wastewater, pharmaceutical wastewater and the like) is generated in the production process, and the water environment is threatened greatly if the wastewater is improperly treated. Existing town and industrial wastewater are carried out by different sewage treatment plants and sewage treatment facilities and processes. In the prior art, large-scale sewage treatment plants and special equipment and processes are required for purifying and regenerating industrial wastewater, and the small-scale sewage treatment plants are difficult to meet the technical requirements of industrial wastewater treatment. Because the sewage produced by industrial production has the characteristics of complex components, difficult degradation, difficult treatment and the like, if the sewage fails to reach the standard, the sewage can influence the water ecology and the water environment, and even influence the normal life of people.

In the prior art, large-scale sewage treatment plants and special equipment and processes are required for purifying and regenerating industrial wastewater, and the small-scale sewage treatment plants are difficult to meet the technical requirements of industrial wastewater treatment. Because the sewage produced by industrial production has the characteristics of complex components, difficult degradation, difficult treatment and the like, if the sewage fails to reach the standard, the sewage can influence the water ecology and the water environment, and even influence the normal life of people. The conventional secondary treatment process can only treat sewage with better biodegradability, and a multi-stage treatment process is needed for industrial sewage with common biochemistry, and a hydrolytic acidification tank and ozone contact oxidation process is needed to be added in a biochemical tank in the treatment process so as to ensure the safety of industrial sewage treatment. In addition, with the occurrence of water pollution emergency caused by various chemical dangerous goods transportation and the like, each stage of sewage treatment (station) factory also needs to have a certain emergency treatment function.

However, in the large sewage treatment plant in the prior art, the industrial sewage needs to be comprehensively analyzed according to various pollutant indexes and concentrations in the sewage, corresponding water treatment equipment and process measures are formulated, and the industrial sewage can be discharged after being treated by the industrial sewage treatment equipment, but the existing sewage treatment (station) factory equipment and process cannot support the targeted emergency treatment according to different dangerous article pollution.

To solve the problem of industrial sewage treatment, the document of China patent application No. 20201589815. X discloses an integrated sedimentation built-in deep water aeration bioreactor, which comprises: the anaerobic zone, the aerobic zone and the sedimentation zone are arranged above the anaerobic zone, a sludge hopper is arranged in the anaerobic zone, the sedimentation zone is used for refluxing the sedimentated sludge to the anaerobic zone through an annular gap at the bottom of the sludge hopper, the aerobic zone is arranged at the periphery of the anaerobic zone and the sedimentation zone and surrounds the periphery of the anaerobic zone and/or the sedimentation zone, an aeration device is arranged in the aerobic zone, the anaerobic zone is communicated with the aerobic zone through a communication port, the mixed liquid of the aerobic zone is lifted by a gas stripping pump to be subjected to solid-liquid separation through a sludge reflux gas-liquid separation tank, a spoke-shaped or annular water distribution device to the sedimentation zone, and water after solid-liquid separation is discharged by a water outlet weir; the mixed liquid which is required to flow back from the aerobic zone to the anoxic zone is lifted by a mixed liquid gas lift pump, enters a mixed liquid gas-liquid separation tank, and enters the anoxic zone together with the inflow water after separation.

However, the above-described invention and the prior art have the following disadvantages: the system can not support targeted emergency treatment according to different dangerous article pollution; because the types and the concentrations of pollutants in the sewage are more, the corresponding treatment processes and equipment are often required to be designed according to the different types and the different concentrations of components of the pollutants in the sewage, the pertinence is stronger, the treatment processes and the equipment are customized design and manufacture and are special, the universality is not realized, and the batch shaping manufacture, installation, operation and maintenance cannot be realized, so that the sewage treatment equipment and the process are complex and the cost is high; after the equipment of the existing middle and small sewage treatment plant is manufactured, installed and operated, the equipment can be treated according to one treatment process generally, but the treatment process can not be flexibly adjusted according to the variety and concentration of pollutants in the incoming water, so that the balance between the treatment cost and the treatment effect is realized, and the problems that the water quality can reach the standard, the treatment cost is high or the treated water quality does not reach the standard easily occur; because the types and the concentrations of pollutants in seasonal running water are different (the types and the concentrations of pollutants in sewage of different sources are also different, and the types and the concentrations of pollutants of the same source are also greatly changed according to the discharge activity difference of upstream production and life), the equipment and the treatment process cannot be adjusted in time in a targeted manner so as to reduce the operation cost of equipment sewage treatment; the large-scale sewage treatment plant pipe network circuit in the construction is long, far away from the sewage main pipe, the construction occupation of land is big, facility equipment is many, intensification, degree of automation is low, can not carry out miniaturization, intensification, distributed (satellite) construction with the facility equipment of sewage treatment plant (station), can not build small-size sewage treatment plant (station) along sewage main pipe line, after the on-the-spot extraction main pipe sewage is handled, with the reclaimed water return to mend urban inland river, consequently can not solve the problem of handling nearby of sewage fast, economy, reliably.

Disclosure of Invention

Aiming at the defects of the method, the invention aims to provide a multi-stage self-defined circulating type circulating emergency treatment method and equipment for industrial sewage, and provides a multi-stage self-defined circulating type circulating emergency treatment method which is mutually cooperated with the equipment and the technology, and equipment of a large and medium sewage treatment plant is miniaturized, modularized and standardized correspondingly according to various technological methods, so that the equipment supports the use of self-defined circulating type circulating sewage treatment such as multi-stage AO denitrification and dephosphorization, various technological precipitation and disinfection, and the like, and also can support the targeted sewage emergency treatment according to different dangerous article pollution, thereby meeting the requirements of small and medium sewage treatment plants (stations) on equipment, small occupied area, low running cost, emergency (combination of peacetime and war) and the like; the invention adopts the factory prefabricated standardized, modularized and assembled treatment equipment with the base, realizes the custom arrangement and combination of the multi-stage multi-treatment technology by adjusting the equipment, and aims at different types and concentrations of pollutants contained in different industrial sewage (emergency sewage), so that operators can flexibly adjust the equipment and technology, a small and medium sewage treatment plant can use one set of equipment and match different multi-stage multi-treatment technology, the treatment requirements on complex sewage such as various industrial sewage and high-concentration sewage can be met, the functions of a large sewage plant can be realized, the quality of the treated reclaimed water is stable, and the defects of the prior art are overcome.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

the multi-stage self-defined circulating type circulating emergency treatment method for the industrial sewage is characterized by comprising the following steps of:

s1: setting industrial sewage self-defined circulating emergency treatment equipment: the treatment equipment comprises a concentric circle self-defined circulating reactor, a plurality of independently working aeration modules and aeration pipes, wherein the reactor comprises: the base is arranged on the concentric inner ring guide wall and the outer ring guide wall above the base, an outer circulation water sump is formed in the area between the inner ring guide wall and the outer ring guide wall, and an inner circulation water sump is formed in the inner area of the inner ring guide wall; a plurality of flow-limiting baffles with different height flow-guiding openings are arranged in the outer circulation water bin, and each flow-limiting baffle divides the outer circulation water bin into at least five mutually connected local areas to form a plurality of local treatment pools for enabling water flow to flow in and out in a single direction and to bend up and down; the plurality of independently working aeration modules and aeration pipes are arranged right below the base, and each aeration module and each aeration pipe pass through the thickness of the base through an aeration pipeline to reach each local treatment pool of the outer circulation water bin and each local area of the inner circulation water bin;

S2: setting the working parameters of the process and each local area: according to the types and the concentrations of pollutants in the sewage treated by the grids, the grit chambers and the regulating tanks arranged outside the concentric circular custom-made circulating reactor, one of A/O, A/O+A/O, A/O+precipitation and disinfection deodorization reaction treatment processes is selected, or the A/A/O, A/O and precipitation processes are custom-ordered and combined, and then according to the selected or custom-made reaction process, the arc lengths of a plurality of local treatment tanks connected in sequence in an outer circulation water bin, the opening heights of each current-limiting baffle plate and the working parameters of an aeration pipeline are correspondingly adjusted, so that each local treatment tank of the outer circulation water bin corresponds to one section of A, O, precipitation or disinfection treatment process respectively;

s3: and (3) water passing and outer ring running water bin zoning treatment: after the industrial sewage to be treated is subjected to primary treatment by a grid, a grit chamber and an adjusting tank outside the concentric circle self-defined circulating reactor, the industrial sewage enters the concentric circle self-defined circulating reactor through the top of the area of the first anaerobic local treatment tank (area A) for treatment: enabling the water flow of the sewage to enter and exit each local treatment tank along a single direction, enabling the water flow to flow up and down in each local treatment tank, performing A, O biochemical process, sedimentation process, separation process or disinfection process corresponding to the local treatment tank, bending the flow direction, and then entering the next local treatment tank for performing treatment of the next biochemical process; after all the partial treatment tanks and treatment, sewage flows into an inner ring running water bin for continuous treatment;

S4: time-sharing biochemical treatment of the inner ring flowing water bin: after the sewage flows into the inner ring running water bin, the process is continued: a plurality of independent aeration modules and aeration pipes are arranged right below each local area in the internal circulation water bin, when each independent aeration module or aeration pipe is opened, oxygen is introduced into the water body right above each independent aeration module or aeration pipe to implement the regional and time-sharing aerobic biochemical O treatment process, when each independent aeration module or aeration pipe is closed, the regional and time-sharing anaerobic biochemical A process is implemented, and after the time interval required by precipitation is continuously closed, the biochemical treatment step of the water body is completed;

s5: time-sharing three-stage disinfection and deodorization treatment:

according to the process steps set in the step S2, chlorine or ozone is introduced into an outer circulation water bin or an aeration module and an aeration pipe at the lower part of the inner circulation water bin, the time-sharing opening and closing of each independent aeration module and the aeration pipe are controlled, the water body upper and lower layers are driven to flow, the aeration disinfection process is implemented in a zoned and time-sharing mode, the water body disinfection operation is carried out, after the set time is reached, the aeration module and the aeration pipe are closed, the set time is redeposited, the disinfected reclaimed water finally flows out of the concentric circle custom circulation reactor from the upper part of the inner circulation water bin, and finally, the external chemical oxidation treatment process is continued, so that the quality of the reclaimed water is stable and reaches the standard, and is discharged.

The utility model provides an industrial sewage multistage self-defined circulation formula circulation emergency treatment equipment which characterized in that, it includes a concentric circle self-defined circulation formula reactor, multiunit aeration module and aeration pipe, and this reactor includes: the base is arranged on the concentric inner ring guide wall and the outer ring guide wall above the base, an outer circulation water sump is formed in the area between the inner ring guide wall and the outer ring guide wall, and an inner circulation water sump is formed in the inner area of the inner ring guide wall; a plurality of flow-limiting baffles with different height flow-guiding openings are arranged in the outer circulation water bin, and each flow-limiting baffle divides the outer circulation water bin into at least five mutually connected local areas to form a plurality of local treatment pools for enabling water to flow in and out in a single direction and to bend up and down; the plurality of independently working aeration modules and the aeration pipes are respectively arranged under the base, and each aeration module and each aeration pipe pass through the thickness of the base through an aeration pipeline to reach a local area separated by the concentric inner ring guide wall, the outer ring guide wall and each flow limiting partition plate; the top, bottom or side wall of the outer circulation water bin and the inner circulation water bin are provided with a plurality of ultraviolet disinfection lamps; the plurality of independently working aeration modules, the aeration pipe and the ultraviolet disinfection lamp change the treatment process of the water body in the corresponding area above the aeration modules by the working state of opening and closing; all the components are modularized, standardized and assembled, and are prefabricated by factories and directly installed on site, so that the civil construction amount is greatly reduced, the construction speed is increased, and the total investment cost is reduced.

Compared with the prior art, the invention has the advantages that:

1. the multi-stage self-defined circulating type circulating emergency treatment method and equipment for industrial sewage provided by the invention can be widely applied to the treatment plants of various complex industrial sewage and emergency sewage, and support the multi-stage AO and other complex combined denitrification and dephosphorization self-defined circulating type sewage treatment processes. The invention adopts a concentric circle movable guide wall type reactor for circular treatment with standardized design, manufacture, installation and operation, adopts a plurality of multi-stage AO denitrification and dephosphorization sewage treatment processes with customized effluent meeting the requirements of surface VI water bodies, aims at the diversified service requirements of small and medium-sized sewage treatment plants, upgrades and reforms the equipment and processes of the small and medium-sized sewage treatment plants on the basis of less equipment and less occupied area, adopts a factory prefabricated standardized, modularized and assembled reactor with a base, combines the device to carry out the customized setting of the multi-stage treatment processes, flexibly adjusts the equipment and the process according to the different types and concentrations of pollutants contained in different influent water, ensures that the small and medium-sized sewage treatment plants use a set of equipment to match different multi-stage treatment processes, meets the treatment requirements of industrial sewage and industrial sewage, and realizes the stable standard discharge of the treated sewage. The method and the reactor provided by the invention can realize treatment equipment of standardized production, adopt various treatment processes to carry out circulating intensive treatment on complex wastewater with various concentrations, and can support the targeted emergency treatment on sewage according to different dangerous article pollution.

2. Aiming at sewage with different pollution-free types and different concentrations, such as industrial sewage (such as pharmaceutical wastewater), emergency sewage and the like, the invention adopts a newly designed general-purpose standardized manufactured circulation treatment reactor, so that the circulation treatment reactor can carry out composite purification treatment according to a self-defined treatment process and meets the emission requirements; the sewage treatment process and the reaction equipment (a reactor, a matched device, matched equipment, a pipeline and the like) which can be mutually matched under various working modes are cooperatively designed, and the equipment can support most industrial sewage and emergency sewage treatment processes through synchronous innovation combination of process improvement and a tank body structure, so that the universality of the equipment is realized, the treatment capacity and the treatment effect of a small and medium-sized sewage treatment plant are greatly expanded, and the construction and operation cost is reduced.

3. The concentric circle self-defined circulating reactor of the reaction equipment provided by the invention adopts standardized, modularized and assembled design, is prefabricated in a factory and is installed on site, so that the construction mode of the existing sewage plant is changed; after the construction, the treatment process most matched with the sewage can be selected according to different sewage types and concentrations under the condition that the integral structure and layout of the reaction equipment (in particular to a concentric circle self-defined circulating reactor) are not changed, so that the treatment capacity is improved, the treatment cost is reduced and the treatment object range is expanded.

4. In the aspect of treatment process, the invention supports user-defined treatment process flow and operation parameters, supports industrial wastewater treatment to adopt complex multi-stage treatment process flow comprising slag-water separation, air floatation, UASB, two-stage AO, precipitation, chemical oxidation and the like, and can ensure stable discharge of effluent after industrial wastewater treatment of different concentrations and types.

5. The concentric circle self-defined circulating reactor of the treatment equipment integrates 5 pools in the prior art, integrally adopts an integrated combined reactor, can support a two-stage AO and precipitation separation system, has slag-water separation and chemical oxidation links, can adapt to different water inflow concentrations, avoids the phenomenon of complex management of a pool body, reduces the occupied area, reduces the investment cost, shortens the construction period, improves the intensive degree of the system, and has higher automation degree and more convenient management.

6. The treatment equipment provided by the invention comprises the concentric circle self-defined circulating reactor, and can adopt standardized, modularized and assembled designs, and the defect that the sewage treatment process cannot be converted after the equipment is built is overcome by the innovative combination of process improvement and a tank body structure, so that the working state and the operation parameters of each component can be flexibly regulated, the large data and intelligent operation technology can be further supported, the intellectualization of operation and maintenance is realized, and the operation cost is reduced; the method provides technical support for truly building a modularized, assembled, multipurpose and low-energy-consumption low-carbon sewage treatment plant.

7. The treatment equipment is provided with the prefabricated steel base, and the installation of all equipment can be completed only by a small amount of site foundation construction, so that the civil construction can be greatly reduced, the construction period can be shortened, and the total investment can be greatly reduced; and can be after the build, run to the time of design, each part can dismantle, transport to other places and reassemble, build new treatment station (factory), resources are saved, improve the reuse rate of equipment.

8. The invention also solves the problem of lack of generality in the prior art, and the corresponding treatment process and equipment are often required to be designed according to the different types and component concentrations of the pollutants in the sewage, so that the pertinence is stronger, and the existing treatment process and equipment are custom-designed and manufactured, are special, cannot be disassembled and reused, and cannot be manufactured, installed, operated, maintained and the like in batches; the sewage treatment equipment built by the invention can be used for selecting and being applicable to various complex treatment processes (also being applicable to simpler treatment processes according to the needs), and has strong flexibility and low operation cost after being built.

9. The method and the equipment solve the problems of long pipeline, long distance from a sewage main pipe, large construction occupation, more facility equipment, intensive and low automation degree of the pipe network of the medium and large sewage treatment plant through mutual cooperation of the process and the equipment, and can realize the construction of the small sewage treatment plant (station) along the sewage main pipe through the miniaturization, the intensive and the distributed (satellite) construction of the facility equipment of the sewage treatment plant (station), extract the main pipe sewage on site for treatment, recycle the reclaimed water to the urban inland river after the on-site extraction of the main pipe sewage, share the total sewage quantity, lighten the pipe network pressure, reduce the pipe network investment and the lifting energy consumption, realize the on-site resource of the sewage, support the operation management through intelligent APP, ensure the stable water quality and realize unattended operation, thereby being capable of rapidly, economically, reliably and intelligently solving the problem of on-site treatment of the sewage.

Drawings

FIG. 1 is a schematic view of a three-dimensional outline structure of a processing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the structure of FIG. 1;

FIG. 3 is a schematic top view of the structure of FIG. 1;

FIG. 4 is a schematic view of the whole cross-sectional structure of FIG. 1;

FIG. 5 is a schematic view of the cross-sectional structure of FIG. 1;

fig. 6 is a partial perspective view of the processing apparatus of fig. 1.

Fig. 7 is a schematic top view of a processing apparatus according to an embodiment of the invention.

FIG. 8 is a schematic view of the structure of the aeration pipe at the lower part of the treatment equipment base according to the embodiment of the present invention;

fig. 9 is a schematic top view of the aeration module of fig. 7;

FIG. 10 is a schematic diagram of any partition of an external circulation sump with a groove and a flow-limiting baffle according to an embodiment of the present invention;

FIG. 11 is a schematic view of a planar deployment structure of the inner side surface of the outer ring guide wall or the outer side surface of the inner ring guide wall in FIG. 1;

FIG. 12 is a schematic view showing a partial cross-sectional structure of a processing apparatus according to an embodiment of the present invention;

FIG. 13 is a schematic view of an overall process flow according to an embodiment of the present invention;

FIG. 14 is a schematic view of an overall process flow according to another embodiment of the present invention;

FIG. 15 is a schematic view of an overall process flow according to another embodiment of the present invention.

In the figure:

60. concentric circle self-defined circulating reactor; 61. a base; 62. an outer ring guide wall; 63. an outer ring guide wall clamping plate; 64. an inner ring guide wall; 65. an inner ring guide wall clamping plate; 66. a central partition; 67. an outer circulation sump; 68. an internal circulation water bin; 69. a groove; 70. a horizontal bracket; 71. a vertical support; 72. a horizontal bracket; 4. no. 1 current limiting baffle; 5. no. 2 current limiting baffle; 6. no. 3 flow-limiting separator; 7. no. 4 flow-limiting baffle; 8. no. 5 flow-limiting baffle; 9. no. 6 flow-limiting baffle; 10. no. 7 flow-limiting separator; 11. no. 8 flow-limiting baffle; 12. no. 9 flow-limiting separator; 13. no. 10 current limiting baffle; 16. a mud-water separator; 17. a precipitation zone; 18. a water outlet collector; 19. blow-down pipe; 20. an aeration module; 21. an aeration pipe distribution area; 23. and (5) aerating the pipe.

Detailed Description

The technical scheme of the invention is described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1-13, the multi-stage self-defined circulation emergency treatment method for industrial sewage provided by the embodiment adopts factory prefabricated standardized, modularized and assembled reaction equipment with a base to perform self-defined setting of multi-stage treatment process by combining the device, and flexibly adjusts equipment and process according to different types and concentrations of pollutants contained in different inflows, so that the treatment requirement on industrial sewage, emergency sewage and the like is met by using a set of equipment matched with different multi-stage treatment processes for the industrial sewage and the emergency sewage, and the treated reclaimed water is discharged after reaching the standard, and the method comprises the following steps:

s1: setting industrial sewage self-defined circulating emergency treatment equipment: the treatment equipment comprises a concentric circle self-defined circulating reactor 60 and matched hydroelectric equipment facilities such as a plug flow pump, a fan, a pipeline and the like, wherein the concentric circle self-defined circulating reactor 60 comprises: a steel right circular plane base 61, a steel concentric circular inner ring guide wall 64 and an outer ring guide wall 62 which are arranged above the base 61, wherein an outer circulation water sump 67 is formed in the area between the inner ring guide wall 64 and the outer ring guide wall 62, and an inner circulation water sump 68 is formed in the inner area of the inner ring guide wall 64; the outer circulation water bin 67 is internally provided with a plurality of steel flow-limiting baffles with different height flow-guiding openings, the numbers are 1 to 10 respectively, the numbers correspond to the numbers of figures 4 to 13 respectively, each flow-limiting baffle 1 to 10 divides the outer circulation water bin 67 into at least five (10 in the embodiment) local areas which are connected with each other, a plurality of local treatment pool areas which enable water flow to flow in and out in a single direction and bend up and down are formed, and the numbers are A to J respectively in sequence; the plurality of independently working aeration modules 20 and aeration pipes 23 are arranged right below the base 61, and each aeration module 20 and aeration pipe 23 passes through the thickness of the base 61 through an aeration pipeline to reach each local treatment pool of the outer circulation sump 67 and each local area of the inner circulation sump 68; the method specifically comprises the following steps:

S11: a plurality of grooves 69 in the central radiation direction are arranged on the inner ring guide wall 64 and the outer ring guide wall 62 at intervals and correspondingly, each groove 69 is vertical, and the heights of the bottoms of the grooves 69 are the same or different; the height of the flow-limiting baffle plate after being positioned can be adjusted by the grooves 69 when the flow-limiting baffle plate is inserted into the grooves; the grooves can be obtained by additionally arranging a layer of arc-shaped steel plates on the side walls of the outer ring guide wall 62 and the inner ring guide wall 64 and reserving proper gaps between the arc-shaped steel plates; the flow limiting baffle is moved and inserted into the grooves at different positions, so that the local treatment pool with different arc lengths and opening heights can be obtained, and the flow speed and flow of water flow in the local treatment pool are regulated to meet the treatment requirements of different biochemical processes;

a plurality of ultraviolet disinfection lamps are arranged on the top, the bottom or the side wall of the outer ring running water bin 67 and the inner ring running water bin 68 so as to meet the requirements of disinfection treatment;

s12: the outer circle diameter D of the outer circle guide wall 62 ₁ Diameter D of the inner circle where the inner circle guide wall 64 is located ₂ And the height H of the outer ring guide wall and the inner ring guide wall meets the following relation:

diameter of outer circle D ₁ The method meets the following conditions: pi D ₁ ² 4*K =t×q formula 1

Diameter of inner circle D ₂ The method meets the following conditions: pi D ₂ ² 4*K = (0.5-2) Q formula 2

At the same time: d (D) ₁ /D ₂ ＝1.1～2，H≥1/3*D ₂ Equation 3

H＝ H ₁ + H ₂ + H ₃ Equation 4

Wherein:

pi: circumference ratio

D ₁ : diameter of outer circle, unit m

D ₂ : inner diameter, unit m

K: height adjustment coefficient, the value is 1-2, unit m

T: the total residence time of sewage treatment is calculated according to the specification, and the unit is h

Q: water treatment per hour, unit m ³ /h

H: the height of the outer circulation sump guide wall and the inner ring guide wall is in unit of m;

H ₁ : the height of the upper section flow guiding opening of the flow limiting baffle plate is in unit m

H ₂ : middle section height of flow-limiting partition board, unit m

H ₃ : the height of the diversion opening at the lower section of the flow-limiting baffle plate is in m.

The concentration of pollutants BOD, TN and the diameter D of the outer circle of the inlet water ₁ D, under the condition that the relation of the diameters meets the conditions, enabling the effluent discharge index to be the surface IV water body requirement ₁ Calculated according to the following equation 5:

wherein:

D ₁ diameter of outer ring, unit m

V ₁ Aerobic zone volume, unit m ³

V ₂ Volume of anoxic zone, unit m ³

V ₃ The volume of the anaerobic zone is calculated,unit m ³

Q is sewage treatment capacity per hour, unit m ³ /h

T: reflux coefficient, value 3, unit h

H ₁ : height of outer ring, unit m

Aerobic zone volume V ₁ The method comprises the following steps:

anoxic zone volume V ₂ The method comprises the following steps:

anaerobic zone volume V ₃ The method comprises the following steps:

V ₃ ＝(1～2)Q

q-sewage treatment amount per hour, unit m ³ /h

S ₀ COD concentration of the incoming water in mg/L

θ _C0 Sludge age, unit d

Y _t Sludge yield coefficient, unit value range 0.03-1.0

X-sludge concentration in mg/L

N _K Total nitrogen concentration in mg/L of feed water

K _de The denitrification rate is 0.03-0.06 unit value range.

In this embodiment, the specific selection is calculated in this embodiment: d (D) ₁ ＝25m，D ₂ =16m, height h=6000 mm.

S13: in the outer ring running

water bin

67, 10 flow-limiting baffles are sequentially selected and arranged in the embodiment, and the number of the flow-limiting baffles is 1 to 10 (corresponding to reference numerals 4 to 13 respectively) in sequence, wherein the 1 st flow-limiting baffle is an initial flow-limiting baffle, and an area A formed at the front part of the flow-limiting baffle is an external sewage inflow area; the height of the flow-limiting baffle plates is different from the height of the flow-guiding openings and the water passing grooves formed by the inner ring flow-guiding wall, the outer ring flow-guiding wall and the base in the outer ring running water bin, wherein the flow-limiting baffle plates numbered 1, 3, 5, 7 and 9 are provided with flow-guiding openings at the upper part to form an upper water passing groove, and the flow-limiting baffle plates numbered 2, 4, 6, 8 and 10 are provided with flow-guiding openings at the lower part to form a lower water passing groove; the sewage changes the flow direction and increases the flow velocity when flowing through the water tanks;

s14: the 10 flow-limiting baffles in the outer ring running water bin 67 are all arranged in a central radiation way by taking the center of the outer ring flow-guiding wall 62 as the center, wherein the flow-limiting baffles with the numbers of 1, 2, 3, 4 and 5 are respectively formed by extending the cross sections of the flow-limiting baffles to the center of the circle to form a deflection included angle of 22.5 degrees; the deflection included angle formed by the cross sections of the flow limiting baffles numbered 6, 7, 8, 9 and 10 extending to the circle center is 45 degrees; the deflection included angle and the sectional area of each flow limiting baffle are mutually matched for diversion, so that the flow direction is changed, the flow speed is improved, and the flow speed of sewage passing through each water passing trough is kept at 0.02-0.2 m/s;

S15: each of the flow-limiting baffles 1-10 is detachably arranged between the inner ring guide wall and the inner side wall of the outer ring guide wall; a plurality of vertical grooves 69 which are concave inwards are arranged on the corresponding side walls of the inner circle of guide wall and the outer circle of guide wall, and each groove 69 has a deflection included angle of 22.5 degrees or 45 degrees; the flow-limiting baffles 1-10 are respectively inserted and pulled in the vertical direction and are arranged in the corresponding grooves 69 according to the working parameters of the process and the local areas set in the step S2, and the direction and the height of the opening of the water passing groove of each flow-limiting baffle are adjusted in the installation process so as to adjust the speed and the depth of each section of water flow and the biochemical treatment time when the water flows through, and the flow speed and the flow quantity of sewage in each local treatment pool are mutually matched;

relative height H of water passing trough formed by each flow limiting baffle ₁ H and H ₃ The following relationships are satisfied:

H ₁ *(D ₁ -D ₂ )/2*P＝Q _S equation 6

H ₃ *(D ₁ -D ₂ )/2*P＝Q _S Equation 7

Wherein:

D ₁ : diameter of outer circle, unit m

D ₂ : inner diameter, unit m

P: the flow velocity adjustment coefficient takes a value of 0.1 to 1, the unit m/s,

Q _S : treated water amount per second, unit m ³ /s。

In the present embodiment, the opening height H of the water passing trough formed by the flow-limiting baffles (No. 1-10, corresponding to reference numerals 4-13) ₁ Or H ₃ The value interval of the (C) is 0.3-2.5 m.

S16: dividing the inner space K of the inner ring treatment tank by adopting the opening and closing states of the independent aeration modules 20 corresponding to partial areas or setting a central partition plate, so that two or more partial inner ring areas after division form a biochemical treatment area or a sedimentation area which can be alternately converted into one of a sedimentation tank, a sludge tank, a clean water tank or a deep treatment tank which can be alternately converted in a time-sharing manner, and keeping the sewage in the sedimentation tank for 0.5-3 h;

the sewage is treated again by the self or by matching with the local treatment tanks of the outer circulation sump, or is treated by time-sharing three-stage treatment (chlorine, ultraviolet radiation or ozone) to make the treated sewage undergo three-phase precipitation, and finally the regenerated water flows out of the concentric circle self-defined circulation reactor 60 from the upper part of the inner ring treatment tank;

s2: setting the working parameters of the process and each local area: according to the types and the concentrations of pollutants in the sewage treated by the gratings, the grit chambers and the regulating tanks arranged outside the reactor 60, the industrial sewage (or emergency sewage) is subjected to one of the processes of A/O, A/O+A/O, A/O+precipitation, disinfection and deodorization reaction treatment, or the processes of A/A/O, A/O, precipitation and the like, which are subjected to the custom sequencing and combination, and then according to the selected or custom reaction process, the sequentially connected multiple local treatment tanks in the external circulation water bin 67, the arc lengths with the numbers of A-J respectively, the opening heights of the current limiting partition boards and the working parameters of the aeration pipelines are correspondingly regulated, so that each local treatment tank of the external circulation water bin 67 corresponds to one section of A, O, precipitation or disinfection treatment process respectively;

S21: according to the selected process combination and the processing processes of the local processing tanks A-J, the arc length of each local processing tank and the opening height of each partition board are correspondingly adjusted by the corresponding grooves 69 of the flow limiting partition boards, and then the working parameters of the aeration module right below the flow limiting partition boards are combined, so that the local processing tanks of the outer ring running water bin 67 can respectively correspond to one section of A, O, anoxic, sedimentation, separation or disinfection processing processes;

s3: the water passing and outer ring running water bin 67 is treated in a zoning way: after the industrial sewage to be treated is subjected to primary treatment by a grid, a grit chamber and an adjusting tank outside the concentric circle self-defined circulating reactor 60, the industrial sewage enters the concentric circle self-defined circulating reactor 60 for treatment through the top of the area where the first anaerobic local treatment tank A is positioned: enabling the water flow of the sewage to enter and exit each local treatment tank along a single direction, enabling the water flow to flow up and down in each local treatment tank, performing A, O biochemical process, sedimentation process, separation process or disinfection process corresponding to the local treatment tank, bending the flow direction, and then entering the next local treatment tank for performing treatment of the next biochemical process; after all the partial treatment tanks and treatment, sewage flows into an inner ring running water bin for continuous treatment;

S4: and (3) time-sharing biochemical treatment of the inner circulation sump 68: after the sewage flows into the inner ring running water bin 68, the subsequent treatment is continued: a plurality of independent aeration modules 20 and aeration pipes 23 are arranged right below each local area A-J in the inner ring running water bin 68, when each independent aeration module or aeration pipe 23 is opened through an automatic control valve, oxygen is introduced into the water body right above each independent aeration module or aeration pipe to implement an aerobic biochemical O treatment process in a divided area and in a time-sharing manner, when each independent aeration module 20 or aeration pipe 23 is closed through the automatic control valve, an anaerobic biochemical A process in the divided area and in the time-sharing manner is implemented, and after the time interval required by precipitation is continuously closed, the biochemical treatment step of the water body is completed;

s5: time-sharing three-stage disinfection and deodorization treatment:

according to the process steps set in the step S2, chlorine or ozone is introduced into the outer circulation sump or the aeration module 20 and the aeration pipe 23 at the lower part of the inner circulation sump, the independent aeration modules 20 and the aeration pipe 23 are controlled to be opened and closed in a time-sharing manner, the upper layer and the lower layer of the water body are driven to flow, the aeration disinfection process is implemented in a zoning and time-sharing manner, the water body disinfection operation is carried out, after the set time is reached, the aeration modules 20 and the aeration pipe 23 are closed, the set time is redeposited, the disinfected reclaimed water finally flows out of the concentric circle custom-circulation reactor 60 from the upper part of the inner circulation sump, and finally, the external chemical oxidation treatment process is continued, so that the reclaimed water quality is stable and reaches the standard.

S51: ultraviolet lamp irradiation sterilization: in the process of precipitation, an ultraviolet sterilizing lamp is synchronously started, ultraviolet lamp light is utilized to irradiate and sterilize the water body, and after the set time is reached, the sterilized reclaimed water finally flows out of the concentric circle self-defined circulating reactor 60 after being separated from the upper part and the three phases of the inner ring running water bin 68.

The utility model provides an industrial sewage multistage self-defined circulation formula circulation emergency treatment equipment, its includes a concentric circle self-defined circulation formula reactor 60, multiunit aeration module 20 and aeration pipe 23 to and matched hydroelectric equipment facilities such as plug flow pump, fan, pipeline that use, this reactor 60 includes: the base 61 is provided with a concentric inner ring guide wall and an outer ring guide wall which are arranged above the base 61, an outer circulation water sump is formed in the area between the inner ring guide wall and the outer ring guide wall, and an inner circulation water sump is formed in the inner area of the inner ring guide wall; a plurality of flow-limiting baffles with different height flow-guiding openings are arranged in the outer circulation water bin, each flow-limiting baffle divides the outer circulation water bin 67 into at least five mutually connected local areas, and a plurality of local treatment pools which enable water flow to flow in and out in a single direction and bend up and down are formed, and the numbers A to J; the plurality of independently working aeration modules 20 and aeration pipes 23 are respectively arranged under the base 61, and each aeration module 20 and aeration pipe 23 passes through the thickness of the base through an aeration pipeline to reach a local area separated by a concentric inner ring guide wall, an outer ring guide wall and each flow limiting baffle; the top, bottom or side wall of the outer circulation water bin and the inner circulation water bin are provided with a plurality of ultraviolet disinfection lamps (not shown in the figure and can be set according to actual requirements);

The aeration modules 20, the aeration pipes 23 and the ultraviolet disinfection lamps which work independently change the treatment process of the water body in the corresponding area above the aeration modules by the working state of opening and closing, and perform corresponding A, O reaction, sedimentation or disinfection treatment; all the components are in modularized, standardized and assembled design, and are prefabricated by a factory and directly installed on site.

The prefabricated circular steel plate base 61 is also provided with two outer ring guide wall clamping plates 63 which vertically extend upwards and are spaced from each other, the outer ring guide wall 62 is arranged in a guide groove formed at the spaced position of the two outer ring guide wall clamping plates 63, and the lower section of the outer ring guide wall 62 is reliably fixed by the guide groove; similarly, two inner ring guide wall clamping plates 65 extending vertically upwards and spaced apart from each other are further provided on the base 61, and the inner ring guide wall 64 is disposed in a guide groove formed at a spaced position of the two inner ring guide wall clamping plates 65, and the lower section of the inner ring guide wall 64 is reliably fixed by the guide groove.

A plurality of parallel horizontal brackets 70 and a plurality of parallel vertical brackets 71 are arranged on the vertical outer side surfaces of the inner ring guide wall 64 and the outer ring guide wall 62; both are prefabricated members made of steel plates or steel pipes, are connected with each other through fasteners at construction sites, and are arranged on the concentric inner ring guide wall 64 and the outer ring guide wall 62 to strengthen the mechanical strength of each guide wall in the concentric circle self-defined circulating reactor 60.

The inner ring guide wall and the outer ring guide wall are provided with a plurality of vertical grooves 69 which are equidistantly or unequally arranged at intervals on the vertical inner side surfaces, and the lengths of the vertical inner side surfaces of the inner ring guide wall 64 and the outer ring guide wall 62 are respectively divided into a plurality of sections;

the overall height H of the vertical inner sides of the inner ring guide wall 64 and the outer ring guide wall 62 is divided into three sections, h=h ₁ +H ₂ +H ₃ The method comprises the steps of carrying out a first treatment on the surface of the When each flow-limiting baffle plate is arranged on the water trough, the length of the flow-limiting baffle plate is H upwards from the upper surface of the base 61 ₂ +H ₃ A cross-sectional height H is formed at the upper part of each flow-limiting baffle plate ₁ Is passed through the water tank; when each flow-limiting baffle plate is arranged below the water trough, the length of the flow-limiting baffle plate is H downwards from the upper surface of the outer ring flow-guiding wall ₁ +H ₂ A cross-section height H is formed at the lower part of each flow-limiting baffle plate ₃ The following pass through (1)A water tank.

The specific selection in this embodiment is: height H = upper segment H ₁ 1800 mm+middle section H ₂ 2500mm + lower section H ₃ 1700mm

＝6000mm。

The emergency treatment apparatus described in this embodiment further includes a mud-water separator 16 and a effluent collector 18. Wherein the mud-water separator 16 is a three-phase separator and the deformation thereof or is in a form of combining diversion and inclined tube precipitation, the height of the mud-water separator 16 is 0.5-2 m, and the mud-water separator 16 is a region which is partially or completely covered with an inner circulation water bin 68, and the distance between the top of the mud-water separator and the water surface is more than or equal to 0.5m; the effluent collector 18 is one of a triangular weir water collection sump, a rectangular weir water collection sump, and a submerged water collection structure.

Other structures or specific operation manners of the embodiment may also refer to the prior art (such as CN 202111253203.8) or the conventional technology.

Referring to fig. 12, in the embodiment of the invention, a plurality of flow-limiting baffles are sequentially used for dividing the external circulation water sump into areas and dividing the areas into mutually separated treatments, and the process sections A and O corresponding to the volume and the length of the reaction can be freely combined among the local treatment tanks, so that the flowing length of sewage in the external circulation water sump can be greatly prolonged (about H times improvement), the circulation treatment process, the sewage flow rate, the flow and the treatment time of each section can be flexibly regulated and controlled, and one of corresponding A, O or sedimentation treatment processes can be realized in each area through corresponding different treatment processes in each area, and an aeration module is added, so that the environmental conditions of biochemical reactions (three different biochemical environments including aerobic, anoxic and anaerobic are created in a segmented way) can be freely changed, and A, O or random selection and arrangement combination of sedimentation treatment processes can be realized, so as to meet the treatment requirements of different sewage.

In the embodiment of the invention, sewage sequentially flows through at least four mutually connected local areas separated by each flow-limiting baffle plate, biochemical circulation treatment is carried out by the reaction equipment according to the treatment process set in the step S2, the treated reclaimed water is discharged from a water outlet collector at the upper part of the reaction equipment and is discharged after reaching standards through a filter cloth filter and ultraviolet disinfection, the circulating intensive biochemical sewage treatment reaction equipment with a standardized production structure and layout is realized, and various self-defined treatment processes are adopted to carry out circulating intensive treatment on various types of wastewater with different concentrations. The emergency treatment of water pollution events by the targeted process according to different dangerous article pollution can be well supported.

The treatment equipment (comprising the concentric circle self-defined circulating reactor 60) adopts the overground steel structure tank body, thereby solving the problems of difficult civil construction and high cost. The treatment equipment disclosed by the invention has small occupied area, and can be suitable for constructing a small sewage treatment plant (treatment station) in an area with small available space and no construction condition in civil engineering excavation; the main equipment concentric circle self-defined circulating reactor 60 adopts a ground type steel structure tank body, so that the investment cost can be reduced, and the construction period can be shortened.

The AO process adopted in the embodiment of the invention is also called an Anaerobic-aerobic process, A (Anaerobic) is an Anaerobic section and is used for denitrification and dephosphorization; o (Oxic) is an aerobic section for removing organic matter in water. The advantage of the method is that besides degrading organic pollutants, the method has certain denitrification and dephosphorization functions, and the anaerobic hydrolysis technology is used as the pretreatment of the activated sludge, so that the AO method is a high-efficiency activated sludge method.

The industrial sewage multistage self-defined circulating type circulation emergency treatment equipment further comprises: the mud-water separator can be a three-phase separator and its deformation, also can be in the form of diversion and inclined tube precipitation combination, its self-height is 0.5-2 m, and is a partial area which is partially or completely covered with internal circle, and its top portion is more than or equal to 0.5m from water surface.

The industrial sewage multistage self-defined circulation type circulation emergency treatment method and treatment equipment provided by the embodiment further comprise the following steps: the water outlet collector can be a triangular weir water collecting tank, a rectangular weir water collecting tank and various submerged water collecting structures.

The inner circulation water bin 68 forms an inner ring treatment pool, and besides the sedimentation area K, partial areas can be divided according to the needs to be used as a sludge pool, a clean water pool, a deep treatment pool and the like.

The industrial sewage multistage self-defined circulation emergency treatment method and the treatment equipment provided by the embodiment have the advantages that the reflux is in the form of a through-wall pump; in various embodiments, the diameter of the cell body outer circle of the reactor 60 is in the range of 5-70m, and the height is in the range of 5-12 m; the tank bodies with different reactor diameters can meet the treatment requirements of different water qualities and water quantities, and the denitrification efficiency is improved.

The determination of the diameter of the outer circle of the concentric circle custom-made circulating reactor 60 depends on the residence time required by sewage treatment, and the residence time is determined according to the related requirements of outdoor drainage design Specification.

Example 2:

the industrial sewage multistage self-defined circulating type circulating emergency treatment method and the treatment equipment provided by the embodiment are optimized on the basis of the embodiment 1, are suitable for small and medium-sized sewage treatment plants, and are used for treating various industrial sewage (including sewage of sudden water pollution accidents) by adopting a multistage AO denitrification and dephosphorization self-defined circulating type circulating process and a set of equipment.

The embodiment provides an optimized industrial sewage multistage self-defined circulating type circulation emergency treatment method and treatment equipment based on the embodiment 1, and a new technical optimization scheme is further added based on the embodiment. Which differs from example 1 in that: the present embodiment can employ an a/O process and an a/o+a/O process, respectively, and can be converted to each other.

Step S2, specifically, according to the types and concentrations of pollutants in the sewage, performing sectional treatment and combination to form an a/O/a/o+ three-phase separation process, or performing custom combination on the a/O, A/O and the three-phase separation process, and correspondingly adjusting the arc length of each local treatment pool a-J (hereinafter referred to as a-J zone) connected with the outer circulation water bin 67 in turn, the flow guiding opening and the height of each flow limiting baffle, the opening and closing working parameters of a precipitation zone K and an aeration pipeline (each independent aeration module+aeration pipe) in the inner circulation water bin according to the selected or custom reaction process; wherein, the A, B, C area is an anaerobic area (process A1 section) and is not aerated; D. e zone is anoxic zone (process A2 section), intermittent aeration; F. the G, H area is an aerobic area (process O1 section) for continuous aeration; I. the J zone is an anoxic zone (a process A3 section) and is intermittently aerated; the bottom of the K zone is an aerobic zone (a process O2 section) for continuous aeration; the middle of the K zone is a mud-water separation zone; the upper part of the K zone is a clear discharge zone.

Specifically, when an A/A/O treatment process is selected, the treatment process comprises the following steps:

the sewage enters the concentric circle self-defined circulating reactor from the upper part of the area A, sequentially passes through the area A-B-C-D-E-F-G-H-I-J at the outer ring, and then enters the area K through the perforated wallboard. The treated wastewater is subjected to mud-water separation at the upper part of the K region by a three-phase separation technology, clear water is discharged out of the concentric circle self-defined circulating reactor after being collected, and enters a subsequent Fenton treatment unit.

In the concentric circle custom circulation reactor 60, the A, B, C, D area is not aerated and is an anaerobic reaction tank; E. f, G, H, I is an anoxic tank; J. and the K area is continuously aerated and is an aerobic tank. And pumping the mixed liquid in the K region to the E region through a wall penetrating pump on the wall plate at the upper part of the inner ring where the K region is connected with the E region, so as to realize the backflow of the mixed liquid. Pumping the sludge in the K region to the A region through a wall penetrating pump on a wall plate at the lower part of the inner ring, which is connected with the A region, so as to realize sludge reflux; the A/A/O+ precipitation separation process combination of the traditional process is realized in a standardized concentric circle custom circulation reactor; the backflow pipelines and valves are reduced, the occupied area and investment are saved, and the construction speed is improved;

when the A/A/O+A/O treatment process is selected, the treatment process comprises the following steps:

The sewage enters the concentric circle self-defined circulating reactor 60 from the upper part of the area A, sequentially passes through the area A-B-C-D-E-F-G-H-I-J at the outer ring, and then enters the area K through the perforated wallboard. Performing mud-water separation on the treated wastewater at the upper part of the K region by a three-phase separation technology, collecting clear water, discharging the clear water out of the concentric circle self-defined circulating reactor, and entering a subsequent Fenton treatment unit;

in the concentric circle custom circulation reactor 60, the A, B, C area is not aerated and is an anaerobic reaction tank; the DE zone is intermittently aerated and is an anoxic tank; the FGH zone is continuously aerated and is an aerobic tank. Still retaining AAO process characteristics; the IJ zone is an anoxic zone; and the K zone is an aerobic zone through continuous aeration. Adding a first-stage AO process; and pumping the mixed liquid in the K region to the D region through a wall-penetrating pump on the upper wall plate of the inner ring connected with the D region, so as to realize the reflux of the digestive juice of the first-stage AO process. And pumping the mixed liquid in the K region to the I region through a wall-penetrating pump on the wall plate at the upper part of the inner ring, which is connected with the I region, so as to realize the reflux of the digestive juice of the second-stage AO process. Pumping the sludge in the K region to the A region through a wall penetrating pump on a wall plate at the lower part of the inner ring, which is connected with the A region, so as to realize sludge reflux;

the embodiment realizes the conversion from the A/A/O process to the A/A/O+A/O process under the condition of not changing the structure of the tank body through different process combinations, and improves the overall denitrification efficiency of the biochemical reaction equipment.

The treatment equipment provided by the embodiment of the invention is characterized in that an annular horizontal bracket 72 is also arranged on the inner side surface of the inner circulation sump of the concentric circle custom circulation reactor 60 and is used for supporting the side surface of each flow-limiting baffle plate forming the lower diversion trench (grooves or protruding parts can be correspondingly arranged on the flow-limiting baffle plates) and assisting in fixing each flow-limiting baffle plate; its relative height from the upper surface of the base 61 is greater than or equal to H ₃ The relative height of the lower diversion trench formed by each flow-limiting baffle plate is greater than or equal to H ₃ 。

Example 3:

the embodiment provides an optimized industrial sewage multistage self-defined circulating type circulation emergency treatment method and treatment equipment based on the embodiments 1 and 2, and a technical optimization scheme is further added based on the embodiments 1-2, so that an A/A/O/A/O+three-phase separation treatment process and a combination thereof can be supported.

The A/A/O/A/O+ three-phase separation treatment process carried out in the concentric circle custom circulation reactor 60 comprises the following steps: the external sewage enters a concentric circle self-defined circulating reactor 60 from the top of an anaerobic zone A, whether each local treatment pond A-K is started to adjust the sizes of an aerobic zone and an anoxic zone or not through an aeration device, the concentric circle self-defined circulating reactor carries out biochemical circulating treatment according to the A/A/O/A+three-phase separation process set in the step S2, the treated reclaimed water is discharged from the three-phase separation zone and a water outlet collector at the upper part of the concentric circle self-defined circulating reactor 60, and is discharged after reaching standards after passing through a filter cloth filter tank and ultraviolet disinfection, so that a sewage circulating intensive multistage treatment device with standardized production size (same diameter), structure and layout is realized, and the circulating intensive treatment of various types of wastewater with different concentrations is completed by adopting various self-defined treatment processes.

The method comprises the following specific steps:

firstly, sampling and measuring the types and the concentrations of pollutants in sewage (including sewage of emergency) treated by a grid, a grit chamber and an adjusting tank, and selecting and combining to form an A/O+A/O+three-phase separation process or carrying out self-defining combination on the A/O, A/O and three-phase precipitation separation process. The two-stage A/O treatment process comprises the following steps:

sewage automatically flows into the concentric circle self-defined circulating reactor 60 after being treated by the anaerobic tower, two-stage A/O biochemical treatment is carried out in the concentric circle self-defined circulating reactor 60, and mud-water separation is realized; the sewage enters the concentric circle self-defining circulating reactor 60 from the upper part of the A area of the concentric circle self-defining circulating reactor 60, sequentially passes through the A-B-C-D-E-F-G-H-I-J area at the outer ring, and then enters the K area through the perforated wallboard; performing mud-water separation on the treated wastewater at the upper part of the K region by a three-phase separation technology, collecting clear water, discharging the clear water out of the concentric circle self-defined circulating reactor, and entering a subsequent Fenton treatment unit;

in the concentric circle self-defined circulating reactor 60, A, B, C, D interval is intermittently aerated and is an anoxic tank; E. f, G, H area is an aerobic tank; I. the section J is intermittently aerated, and is an anoxic tank; the K area is continuously aerated and is an aerobic tank; pumping the mixed liquid in the K region to the D region through a wall-penetrating pump on the upper wall plate of the inner ring connected with the A region in the K region, so as to realize the reflux of the digestive juice in the A/O process; concentrating the sludge at the bottom of the K region, and then discharging the sludge to a sludge concentration tank;

The treatment process combination and the concentric circle self-defined circulating reactor 60 realize that the treatment of complex wastewater multi-process combination with different pollutant types and concentrations can be performed by integrating the A/O+A/O+three-phase separation process units in the tank body of the standardized concentric circle self-defined circulating reactor 60.

Example 4

The embodiment provides an optimized industrial sewage multistage self-defined circulating type circulation emergency treatment method and treatment equipment based on the embodiment 1-3, and a technical optimization scheme is further added for treating pharmaceutical wastewater based on the embodiment 1-3, so that the method and the equipment can support an A/O+A/O+precipitation treatment process and a combination thereof.

The embodiment is a construction project of a pharmaceutical wastewater treatment station, and the daily water treatment amount is 400m ³ And/d, biochemical treatment is provided by 2 sets of 10m diameter concentric circle custom circulation reactors 60. The wastewater mainly comprises chemical wastewater and Chinese medicinal wastewater, and contains partial ethanol wastewater. The wastewater has high concentration, complex components and high treatment difficulty. The field available area is small. In order to fully save the occupied area and the investment, and ensure that the process is reliable and feasible and meets the safety standard, the treatment process and the treatment equipment are adopted in the biochemical treatment process section. The water inlet and outlet indexes of the pharmaceutical wastewater treatment station are shown in table 1.

TABLE 1

Through research and analysis, the pharmaceutical wastewater treatment station mainly adopts the integral treatment process shown in figure 14, and the biochemical treatment of the process section of 'A/O+A/O+precipitation' is completed in a concentric circle self-defined circulating reactor.

The processing procedure of the A/O+A/O+precipitation technology adopted in the embodiment is as follows: when the concentration of the treated pharmaceutical wastewater is higher, A/O+A/O+precipitation is selected, and the concentric circle self-defined circulating reactor is adjusted to be operated by an A/O+A/O+precipitation process by adjusting the aeration condition of the A-K regions, and the method specifically comprises the following steps: A. b, C, D is an anoxic tank; E. f, G, H area is an aerobic tank; I. the section J is intermittently aerated, and is an anoxic tank; and the K area is continuously aerated and is an aerobic tank. Pumping the mixed liquid in the K region to the D region through a wall-penetrating pump on the upper wall plate of the inner ring connected with the A region in the K region, so as to realize the reflux of the digestive juice in the A/O process; concentrating the sludge at the bottom of the K region, and then discharging the sludge to a sludge concentration tank; thus realizing the process combination of 'A/O+A/O+precipitation' in a concentric circle self-defined circulating reactor.

In this embodiment, the two-stage a/O process implementation path specifically includes:

sewage is treated by an anaerobic tower and then automatically flows into the concentric circle self-defined circulating reactor 60, and two-stage A/O biochemical treatment is carried out in the concentric circle self-defined circulating reactor 60, and mud-water separation is realized. The sewage enters the concentric circle self-defined circulating reactor from the upper part of the area A, sequentially passes through the area A-B-C-D-E-F-G-H-I-J at the outer ring, and then enters the area K through the perforated wallboard. Performing mud-water separation on the treated wastewater at the upper part of the K region by a three-phase separation technology, collecting clear water, discharging the clear water out of the concentric circle self-defined circulating reactor, and entering a subsequent Fenton treatment unit;

In the concentric circle self-defined circulating reactor 60, A, B, C, D interval is intermittently aerated, and is an anoxic tank; E. f, G, H area is an aerobic tank; I. the section J is intermittently aerated, and is an anoxic tank; and the K area is continuously aerated and is an aerobic tank. And pumping the mixed liquid in the K region to the D region through a wall-penetrating pump on the wall plate at the upper part of the inner ring, which is connected with the A region, so as to realize the reflux of the digestive juice in the A/O process. And concentrating the sludge at the bottom of the K region, and then discharging the sludge to a sludge concentration tank.

The process combination realizes that the process units of A/O+A/O+precipitation are integrated in one tank body, saves the occupied area, reduces the construction cost, and becomes possible for enterprises to construct a sewage treatment station of complex wastewater multi-process combination in a narrow space. The same diameter tank body can treat wastewater with different concentrations. Taking the cell body diameter of 10m as an example, the processing capacity and effect are shown in Table 2:

TABLE 2

The pollutant removal effect after the treatment of the treatment equipment and the process of 'A/O+A/O+precipitation' in the embodiment is shown in Table 3.

TABLE 3 Main contaminant removal Effect List (Unit: mg/L)

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In the sewage treatment station project of this embodiment, the treated water amount of each set of concentric circle custom-made circulating reactors 60 is 200m ³ And/d. The application range of the embodiment is as follows: and (3) treating various wastewater requiring biochemical treatment processes, such as pharmaceutical wastewater, breeding wastewater, food wastewater, printing and dyeing wastewater, chemical wastewater, emergency polluted water body and the like.

Example 5

The embodiment of the invention is based on the embodiment 4, further considers project site conditions according to the water quality characteristics and water outlet requirements of pharmaceutical enterprises, combines similar engineering experience, and adopts the process flows of slag-water separation, air floatation, UASB+two-stage A/O+precipitation and chemical oxidation shown in figure 15 to ensure that the water outlet is stably discharged up to the standard.

The specific treatment process comprises the following steps:

the pharmaceutical production wastewater is firstly lifted to a slag-water separator through a lifting pump station, suspended residues are removed, and the wastewater enters an adjusting tank modified by an original wastewater treatment system for preliminary homogenization average treatment.

Then the wastewater is lifted into an air floatation device through a pump, and pollutants such as COD, BOD and the like in the wastewater are removed while the pH is regulated and suspended matters are reduced through dosing. The effluent of the air floatation device enters an adjusting tank for homogenizing average treatment, and then is lifted into the sewage emergency treatment equipment provided by the invention through a pump;

The waste water after lifting enters a UASB device, the interior of the UASB device contains a large amount of anaerobic sludge, the waste water contacts with the sludge in the lifting process, macromolecular substances are converted into micromolecular substances through four stages of hydrolysis, acidification, acid production and methane production, a ring structure is converted into a chain structure, the B/C ratio of the waste water is further improved, the biodegradability of the waste water is increased,creating a good environment for the subsequent aerobic biochemical treatment. The effluent of the UASB device automatically flows into a concentric circle self-defined circulating reactor 60 to sequentially perform two-stage A/O biological reactions and mud-water separation integrated reactions; wherein, in the anoxic tank, after the inflow water of the anoxic section is mixed with the mixed solution of the reflux of the aerobic section, denitrifying bacteria utilize organic matters in sewage as carbon sources to carry a large amount of NO in the reflux mixed solution ₃ -N and NO ₂ Reduction of N to N ₂ Releasing the gas to the air to achieve the aim of removing TN; the effluent from the anoxic tank flows to the aerobic tank, and in the aerobic section, the pollutants in the sewage are impacted and stirred by the upward airflow to accelerate falling and updating, so that the pollutants always keep better activity; because the sewage stays in the tank for a long time, the mixed solution obtains enough dissolved oxygen and enables the filler to fully contact with the wastewater; the soluble organic pollutants in the sewage are adsorbed by the activated sludge and decomposed by the microorganism groups living on the activated sludge, thereby playing a role in greatly reducing COD and BOD.

In the sedimentation tank of the concentric circle self-defined circulating reactor 60, the solid-liquid separation technology is adopted to realize mud-water separation, so that the effluent is clarified, the occupied area can be saved, and the effluent of the sedimentation tank can meet the discharge standard.

When the pollutant concentration of the effluent is higher than the emission standard, a chemical oxidation process is started, and under the action of a catalyst and an oxidant, the pollutants are further removed, so that the effluent is ensured to reach the emission standard.

The sludge enters a sludge press filtration dehydration system after being concentrated. And (5) carrying out outward treatment on the dehydrated sludge.

The odor generated in the treatment process is collected and then is subjected to deodorization treatment, and then is discharged at high altitude.

The water pump is arranged for ensuring the constant flow and pressure of the water supply of the treatment equipment. The water pump automatically operates, is provided with a water pump automatic controller, is provided with water shortage protection, high-pressure protection and overcurrent and overheat protection, automatically alarms when faults occur, and prolongs the service life of the water pump.

When the drainage concentration is normal, the water is normally operated according to the process flow, and the water is discharged after reaching the standard.

When the water concentration is lower, the air floatation system can be spanned to save the running cost.

When the concentration of the incoming water is too high or the running effect is poor, the chemical can be added through the chemical oxidation system, so that the sewage discharge reaches the standard.

The embodiment can integrate 5 biochemical reaction tanks in the prior art, divide segments (condition length) according to needs, customize process and length and carry out circulation treatment, integrally adopts an integrated combined circulation type concentric circle custom circulation reactor 60, is matched with a two-stage A/O and precipitation separation system, completes the links of slag-water separation and chemical oxidation in the reaction tanks, can adapt to different water inlet concentrations, avoids the phenomenon of complex management of a plurality of tanks, reduces occupied area, reduces investment cost, shortens construction period, improves intensive type of the system, has higher automation degree and is more convenient to manage.

By adopting the sewage treatment process and the sewage treatment equipment of the embodiment, under the conditions that the drainage is normal and the operation of the sewage treatment station is normal, the pollutant removal rate of each process section of the sewage treatment station is shown in the following table 4:

TABLE 4 Main contaminant removal Effect List (Unit: mg/L)

Note that: the data in the removal rate table can be changed according to the water quality and environmental conditions during actual operation, but can be ensured to reach the standard.

According to the project scheme provided by the embodiment, the ethanol wastewater generated in the re-ethanol extraction process can be integrated into the sewage treatment station for unified treatment, namely, the ethanol wastewater can directly enter the sewage treatment station for synchronous treatment. As long as the drainage amount and concentration of the ethanol do not exceed the set values of the reaction parameters of the concentric circle custom circulation reactor 60, thus saving the equipment investment of independent ethanol wastewater treatment.

Example 6

The embodiment provides an optimized industrial sewage multistage self-defined circulating type circulation emergency treatment method and treatment equipment based on the embodiments 1-5, and a technical optimization scheme is further added for treatment of different industrial wastewater or polluted water based on the embodiments 1-5, so that UCT treatment process and combination of UCT treatment process and other processes can be supported.

When the UCT treatment process is selected, the treatment process comprises the following steps:

external sewage enters the concentric circular self-defined circulating reactor 60 from the upper part of the area A, sequentially passes through the area A-B-C-D-E-F-G-H-I-J in the external circulating water sump, and then enters the area K of the internal circulating water sump through the perforated wall plate. The treated wastewater is subjected to mud-water separation at the upper part of the K region by a three-phase separation technology, clear water is discharged out of the concentric circle self-defined circulating reactor 60 after being collected, and enters a subsequent Fenton treatment unit.

In the concentric circle custom circulation reactor 60, the A, B, C, D, E zone is not aerated and is an anaerobic tank; F. g, H, I, J is an anoxic tank; the K area is continuously aerated and is an aerobic tank; the mixed liquid in the J area is pumped to the A area through a wall penetrating pump on the upper wall plate of the flow limiting partition board connected with the A area, so that the internal reflux from the anoxic end to the anaerobic front end of the UTC process is realized; the sludge in the K region is pumped to the F region through a wall-penetrating pump on the upper wall plate of the inner ring connected with the F region, so that the internal reflux from the aerobic tail end to the anoxic front end of the UTC process is realized;

After flexibly adjusting to the UTC treatment process, the concentric circle custom loop reactor 60 returns sludge to the anoxic tank instead of to the anaerobic tank, thereby preventing the anaerobic state of the anaerobic tank from being damaged due to nitrate nitrogen entering the anaerobic tank to affect the dephosphorization rate of the system. Meanwhile, the mixed liquid flowing back from the anoxic tank to the anaerobic tank is increased, the mixed liquid flowing back from the anoxic tank to the anaerobic tank contains more dissolved BOD, and less nitrate, so that the optimal condition is provided for the organic matter hydrolysis reaction in the anaerobic section.

In the above embodiments of the present invention, a specific type of standardized equipment (equipment conforming to design rules, the main body is a concentric circle circulation reactor 60) is adopted, and users can treat multiple types of wastewater (including wastewater in emergency events) by customizing different equipment area functions and treatment processes; the device manufacturing, installation and operation are universal, modularized and standardized.

The invention has the advantages that the types and the concentrations of pollutants in the better sewage are more, the corresponding treatment processes and equipment are required to be designed according to the types and the concentrations of the components of the pollutants in the sewage, the pertinence is stronger, the treatment processes and the equipment are custom-designed and manufactured, and are special, the universality is high, and the batch shaping, the installation, the operation and the maintenance cannot be realized, so that the problems of complex sewage treatment equipment and process and high cost are caused.

The invention well solves the problems that the existing equipment can only be treated according to one treatment process after being manufactured, installed and operated, but the treatment process can not be flexibly adjusted according to the variety and concentration of pollutants in the incoming water and the sewage, so as to realize the balance between the treatment cost and the treatment effect, and the water quality can reach the standard easily, but the treatment cost is high, or the water quality after the treatment does not reach the standard.

The invention also solves the problems that the types and the concentrations of the pollutants in the seasonal running water are different (the types and the concentrations of the pollutants in the sewage with different sources are also different, the types and the concentrations of the pollutants with the same source are also changed greatly according to the discharge activity difference of the upstream production and life), and the equipment and the treatment process cannot be adjusted in time in a targeted manner, so that the operation and maintenance cost can be obviously reduced.

According to the embodiments of the invention, through actual operation tests, industrial sewage treated by the embodiments can stably reach the first-level class A emission standard of pollutant emission standards of urban sewage treatment plants (GB 18918-2002).

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure, and similar technical solutions resulting from such variations or modifications are within the scope of the present invention.

Claims

1. The multi-stage self-defined circulating type circulating emergency treatment method for the industrial sewage is characterized by comprising the following steps of:

s1: setting industrial sewage self-defined circulating emergency treatment equipment: the treatment apparatus comprises a concentric circle custom circulation type reactor (60), a plurality of independently working aeration modules (20) and aeration pipes (23), wherein the reactor (60) comprises: the base is arranged above the base (61) and comprises a concentric inner ring guide wall (64) and an outer ring guide wall (62), wherein an outer circulation water sump (67) is formed in the area between the inner ring guide wall (64) and the outer ring guide wall (62), and an inner circulation water sump (68) is formed in the inner area of the inner ring guide wall (64); a plurality of flow-limiting baffles with different height flow-guiding openings are arranged in the outer circulation water bin (67), and each flow-limiting baffle (4-13) divides the outer circulation water bin (67) into at least five mutually connected local areas to form a plurality of local treatment pools for enabling water to flow in and out in a single direction and to bend up and down; the plurality of independently working aeration modules (20) and the aeration pipes (23) are arranged right below the base (61), and each aeration module (20) and each aeration pipe (23) pass through the thickness of the base (61) through an aeration pipeline to reach each local treatment pool of the outer circulation water bin (67) and each local area of the inner ring water bin (68);

S2: setting the working parameters of the process and each local area: according to the types and the concentrations of pollutants in the sewage treated by the grids, the grit chambers and the regulating tanks arranged outside the concentric circle self-defined circulating reactor, one of A/O, A/O+A/O, A/O+precipitation and disinfection and deodorization reaction treatment processes is selected, or the A/A/O, A/O and precipitation processes are subjected to self-defined sequencing and combination, and then according to the selected or self-defined reaction process, the arc lengths of a plurality of local treatment tanks connected in sequence in an outer circulation water bin (67), the opening heights of each current-limiting baffle plate and the working parameters of an aeration pipeline are correspondingly regulated, so that each local treatment tank of an outer ring running water bin (67) corresponds to one section of A, O, precipitation or disinfection treatment process respectively;

s3: and (3) water passing and outer ring running water bin zoning treatment: after the industrial sewage to be treated is subjected to primary treatment by a grid, a grit chamber and an adjusting tank outside the concentric circle self-defined circulating reactor (60), the industrial sewage enters the concentric circle self-defined circulating reactor (60) for treatment through the top of the first anaerobic local treatment tank area: enabling the water flow of the sewage to enter and exit each local treatment tank along a single direction, enabling the water flow to flow up and down in each local treatment tank, performing A, O biochemical process, sedimentation process, separation process or disinfection process corresponding to the local treatment tank, bending the flow direction, and then entering the next local treatment tank for performing treatment of the next biochemical process; after all the partial treatment tanks and treatment, sewage flows into an inner ring running water bin for continuous treatment;

S4: time-sharing biochemical treatment of the inner ring flowing water bin: after the sewage flows into the inner ring running water bin, the process is continued: a plurality of independent aeration modules (20) and aeration pipes (23) are arranged right below each local area in the internal circulation water bin, when each independent aeration module or aeration pipe (23) is opened, oxygen is introduced into the water body right above the independent aeration module or aeration pipe to implement the regional and time-sharing aerobic biochemical O treatment process, when each independent aeration module (20) or aeration pipe (23) is closed, the regional and time-sharing anaerobic biochemical A process is implemented, and after the time interval required for precipitation is continuously closed, the biochemical treatment step of the water body is completed;

s5: time-sharing three-stage disinfection and deodorization treatment:

according to the process steps set in the step S2, chlorine or ozone is introduced into an outer circulation sump or an aeration module (20) at the lower part of the inner ring sump and an aeration pipe (23), the independent aeration modules (20) and the aeration pipe (23) are controlled to open and close in a time-sharing manner, the upper layer and the lower layer of the water body are driven to flow, an aeration disinfection process is implemented in a regional and time-sharing manner, the water body disinfection operation is carried out, after the set time is reached, the aeration modules (20) and the aeration pipe (23) are closed, the set time is redeposited, the disinfected reclaimed water finally flows out of a concentric circle custom-made circulating reactor (60) from the upper part of the inner ring sump, and finally, the external chemical oxidation treatment process is continued, so that the reclaimed water quality is stable and reaches the standard and is discharged.

2. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 1, wherein the steps S1, S2 and S5 are implemented, and further comprise the following steps:

s11: a plurality of grooves in the central radiation direction are arranged on the inner ring guide wall and the outer ring guide wall at intervals and correspondingly, and the heights of the bottoms of the grooves are the same or different;

a plurality of ultraviolet disinfection lamps are arranged on the top, the bottom or the side wall of the outer circulation water bin and the inner circulation water bin;

s21: according to the selected process combination and the corresponding treatment process of each local treatment pool, the flow-limiting partition plates are vertically inserted into the corresponding grooves, so that the arc length of each local treatment pool and the opening height of each partition plate are correspondingly adjusted, and then the working parameters of an aeration module right below the flow-limiting partition plates are combined, so that each local treatment pool of the external circulation water bin can respectively correspond to one section of A, O, anoxic, sedimentation, separation or disinfection treatment process;

s51: ultraviolet lamp irradiation sterilization: in the process of precipitation, an ultraviolet disinfection lamp is synchronously started, ultraviolet lamp light is utilized to irradiate and disinfect a water body, and after a set time is reached, disinfected reclaimed water finally flows out of the concentric circle self-defined circulating reactor from the upper part of the inner ring running water bin.

3. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 1, wherein the implemented step S1 further comprises the following steps:

s12: the diameter D of the outer circle of the outer ring guide wall ₁ Diameter D of inner circle where inner circle guide wall is located ₂ And the height H of the outer ring guide wall and the inner ring guide wall meets the following relation:

At the same time: d (D) ₁ /D ₂ ＝1.1～2，H≥1/3*D ₂ Equation 3

H＝ H ₁ + H ₂ + H ₃ Equation 4

Wherein:

pi: circumference ratio

D ₁ : diameter of outer circle, unit m

D ₂ : inner diameter, unit m

K: height adjustment coefficient, the value is 1-2, unit m

Q: water treatment per hour, unit m ³ /h

H ₂ : middle section height of flow-limiting partition board, unit m

H ₃ : the height of the diversion opening at the lower section of the flow-limiting baffle plate is m;

the concentration of pollutants BOD, TN and the diameter D of the outer circle of the inlet water ₁ D, under the condition that the relation of the diameters meets the conditions, enabling the effluent discharge index to be the surface IV water body requirement ₁ Calculated according to the following formula:

wherein:

D ₁ diameter of outer ring, unit m

V ₁ Aerobic zone volume, unit m ³

V ₂ Volume of anoxic zone, unit m ³

V ₃ Anaerobic zone volume, unit m ³

Q is sewage treatment capacity per hour, unit m ³ /h

T: reflux coefficient, value 3, unit h

H ₁ : height of outer ring, unit m

Aerobic zone volume V ₁ The method comprises the following steps:

anoxic zone volume V ₂ The method comprises the following steps:

anaerobic zone volume V ₃ The method comprises the following steps:

V ₃ ＝(1～2)Q

q-sewage treatment amount per hour, unit m ³ /h

S ₀ COD concentration of the incoming water in mg/L

θ _C0 Sludge age, unit d

Y _t Sludge yield coefficient, unit value range 0.03-1.0

X-sludge concentration in mg/L

N _K Total nitrogen concentration in mg/L of feed water

K _de The denitrification rate is 0.03-0.06 unit value range.

4. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 1, wherein in the step S1, the method further comprises the following steps:

s13: in the outer ring running water bin (67), 10 flow limiting baffles are sequentially selected and arranged, and the number of the flow limiting baffles is 1 to 10, wherein the 1 st flow limiting baffle is an initial flow limiting baffle, and an area formed at the front part of the flow limiting baffle is an external sewage inflow area; the height of the flow-limiting baffle plates is different from the height of the flow-guiding openings and the water passing grooves formed by the inner ring flow-guiding wall, the outer ring flow-guiding wall and the base in the outer ring running water bin, wherein the flow-limiting baffle plates numbered 1, 3, 5, 7 and 9 are provided with flow-guiding openings at the upper part to form an upper water passing groove, and the flow-limiting baffle plates numbered 2, 4, 6, 8 and 10 are provided with flow-guiding openings at the lower part to form a lower water passing groove; the flow direction of the sewage is changed and the flow speed is increased when the sewage flows through the water tanks.

5. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 4, wherein in the step S1, the method further comprises the following steps:

s14: the 9 flow-limiting baffles in the outer circulation water bin (67) are all arranged in a central radiation way by taking the center of the outer ring flow-guiding wall (62) as the center, wherein the flow-limiting baffles with the numbers of 1, 2, 3, 4 and 5 are respectively extended to the center of the circle to form a deflection included angle of 22.5 degrees; the deflection included angle formed by the cross sections of the flow limiting baffles numbered 6, 7, 8, 9 and 10 extending to the circle center is 45 degrees; the deflection included angle and the sectional area of each flow-limiting baffle are mutually matched for flow guiding, so that the flow velocity passing through each water passing groove is kept between 0.02 and 0.2m/s.

6. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 5, further comprising the following steps on the basis of the step S14:

s15: each flow-limiting baffle is detachably arranged between the inner ring guide wall and the outer ring guide wall; a plurality of vertical grooves which are recessed inwards are formed in the side wall of the inner ring guide wall corresponding to the outer ring guide wall, and each groove is provided with a deflection included angle of 22.5 degrees or 45 degrees; the flow limiting baffles are set with working parameters of each local area along the vertical direction, are inserted and installed in the corresponding grooves according to the step S2, and the direction and the height of the opening of the water passing trough of each flow limiting baffle are adjusted in the installation process so as to adjust the speed and the depth of each section of water flow and the biochemical treatment time when the water flows through, and the flow velocity and the flow rate of sewage in each local treatment pool are mutually matched;

H ₁ *(D ₁ -D ₂ )/2*P＝ Q _S equation 6

H ₃ *(D ₁ -D ₂ )/2*P＝ Q _S Equation 7

Wherein:

D ₁ : diameter of outer circle, unit m

D ₂ : inner diameter, unit m

Q _S : treated water amount per second, unit m ³ /s。

7. The industrial sewage multistage custom circulation type circulation emergency treatment method according to claim 1, wherein in the step S1, the method further comprises the following steps:

s16: dividing the inner space of the inner ring treatment tank by adopting the opening and closing states of the independent aeration modules (20) corresponding to partial areas or setting a central partition plate, so that two or more partial inner ring areas after division form biochemical treatment areas or sedimentation areas which can be alternately converted into one of sedimentation tanks, sludge tanks, clean water tanks or deep treatment tanks which are alternately converted in a time-sharing manner, and enabling sewage to stay in the sedimentation tanks for alternately treating for 0.5-3 h;

the sewage is treated again by the self or by being matched with the local treatment tanks of the outer circulation sump, or is treated in a time-sharing three-stage mode, three-phase precipitation is carried out after treatment, and finally regenerated water flows out of the concentric circle self-defined circulation type reactor (60) from the upper part of the inner ring treatment tank.

8. The utility model provides an industrial sewage multistage self-defined circulation formula circulation emergency treatment equipment which characterized in that, it includes a concentric circle self-defined circulation formula reactor (60), multiunit aeration module (20) and aeration tube (23), and this concentric circle self-defined circulation formula reactor (60) include: the base is arranged on the concentric inner ring guide wall and the outer ring guide wall above the base (61), an outer circulation water sump is formed in the area between the inner ring guide wall and the outer ring guide wall, and an inner circulation water sump is formed in the inner area of the inner ring guide wall; a plurality of flow-limiting baffles with different height flow-guiding openings are arranged in the outer circulation water bin, each flow-limiting baffle divides the circulation water bin into at least five mutually connected local areas, and a plurality of local treatment pools which enable water flow to flow in and out in a single direction and bend up and down are formed; the plurality of independently working aeration modules (20) and the aeration pipes (23) are respectively arranged under the base (61), and each aeration module (20) and each aeration pipe (23) pass through the thickness of the base through an aeration pipeline to reach a local area separated by a concentric inner ring guide wall, an outer ring guide wall and each flow limiting baffle; the top, bottom or side wall of the outer circulation water bin and the inner circulation water bin are provided with a plurality of ultraviolet disinfection lamps;

The plurality of independently working aeration modules (20), the aeration pipes (23) and the ultraviolet disinfection lamps change the water treatment process of the corresponding area above the aeration modules through the working states of opening and closing; all the components are in modularized, standardized and assembled design, and are prefabricated by a factory and directly installed on site.

9. The industrial sewage multistage self-defined circulation type circulation emergency treatment device according to claim 8, wherein two outer ring guide wall clamping plates (63) which vertically extend upwards and are spaced mutually are further arranged on the base (61), and the outer ring guide wall (62) is arranged in a guide groove formed at the spaced position of the two outer ring guide wall clamping plates (63); the base (61) is also provided with two inner ring guide wall clamping plates (65) which vertically extend upwards and are spaced apart from each other, and the inner ring guide wall (64) is arranged in a guide groove formed at the spaced position of the two inner ring guide wall clamping plates (65).

10. The industrial sewage multistage custom circulation type circulation emergency treatment device according to claim 8, wherein a plurality of mutually parallel horizontal brackets (70) and a plurality of mutually parallel vertical brackets (71) are arranged on the vertical outer side surfaces of the inner ring guide wall and the outer ring guide wall.

11. The industrial sewage multistage custom circulation type circulation emergency treatment device according to claim 8, wherein a plurality of vertical grooves (69) are arranged on the vertical inner side surfaces of the inner ring guide wall and the outer ring guide wall and are equidistantly or unequally arranged at intervals, and the lengths of the vertical inner side surfaces of the inner ring guide wall and the outer ring guide wall are respectively divided into a plurality of sections;

the whole height H of the vertical inner side surfaces of the inner ring guide wall and the outer ring guide wall is divided into three sections, and H=H ₁ +H ₂ +H ₃ The method comprises the steps of carrying out a first treatment on the surface of the When each flow limiting baffle plate is arranged on the water trough, the length of the flow limiting baffle plate is that the upper surface of the base (61) is upwards H ₂ +H ₃ A cross-sectional height H is formed at the upper part of each flow-limiting baffle plate ₁ Is passed through the water tank; when each flow-limiting baffle plate is arranged below the water trough, the length of the flow-limiting baffle plate is H downwards from the upper surface of the outer ring flow-guiding wall ₁ +H ₂ A cross-section height H is formed at the lower part of each flow-limiting baffle plate ₃ Is passed through the water tank.