CN113683195A

CN113683195A - Sewage treatment device

Info

Publication number: CN113683195A
Application number: CN202111058747.9A
Authority: CN
Inventors: 李贇; 陈福明; 刘淑杰
Original assignee: Qingyan Environmental Technology Co Ltd
Current assignee: Qingyan Environmental Technology Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2021-11-23

Abstract

The invention discloses a sewage treatment device, which comprises: the device comprises a shell, a spiral device, an aeration device and a first reaction body, wherein a cavity is formed in the shell and is used for containing sewage; the spiral device is arranged in the cavity so as to enable the sewage to form spiral flow from the initial end to the tail end of the shell; the aeration device is arranged on one side of the spiral device; the first reaction body is arranged in the cavity and positioned in the air injection direction of the aeration device and is used for reacting with pollutants in the sewage. Aiming at improving the sewage treatment quality and the sewage treatment efficiency under the condition of not influencing the sewage treatment quality.

Description

Sewage treatment device

Technical Field

The invention relates to the technical field of sewage treatment equipment, in particular to a sewage treatment device.

Background

Municipal pipe networks in southern areas of China are mostly in rain and sewage confluence, are influenced by rainfall, have greatly increased sewage treatment demands in rainy seasons, and increase the treatment tasks of sewage treatment systems. The traditional sewage treatment device is of a mixed type, and the mixed flowing sewage has no concentration gradient, so that microorganisms can be prevented from being inhibited, and the water quality of the treated sewage is further influenced; however, the microorganisms in the treater are all in the same concentration environment, which affects the treatment of the microorganisms on the pollutants in the sewage, and further causes the sewage treatment speed to be slow. In order to improve the sewage treatment speed, the sewage treatment device adopts a plug flow type, in a plug flow type flowing mode, a concentration gradient exists in the flowing direction of sewage, the reaction rate can be improved to a certain extent, but in the operating mode, microorganisms at the front end of the sewage treatment device are often directly exposed in high-concentration direct-flow sewage, the biological activity of the microorganisms is easily inhibited, and the sewage treatment effect is influenced.

Disclosure of Invention

The invention provides a sewage treatment device, which aims to solve the problem of inhibiting the activity of microorganisms in the traditional plug flow type operation mode and reflect the positive influence of the existence of concentration gradient under plug flow on the pollutant removal efficiency, thereby simultaneously improving the sewage treatment quality and the pollutant removal efficiency.

In order to solve the above-mentioned problems, the present invention provides a sewage treatment apparatus, comprising: the device comprises a shell, a spiral device, an aeration device and a first reaction body, wherein a cavity is formed in the shell and is used for containing sewage; the spiral device is arranged in the cavity so as to enable the sewage to form spiral flow from the initial end to the tail end of the shell; the aeration device is arranged on one side of the spiral device; the first reaction body is arranged in the cavity and positioned in the air injection direction of the aeration device and is used for reacting with pollutants in the sewage.

In an embodiment of the invention, a water supply device and a drainage tank are arranged in the shell, and a water supply port of the water supply device is communicated with the cavity and is positioned at the initial end of the shell; the drainage channel is arranged on the side wall of the shell and is positioned at the tail end of the shell.

In an embodiment of the present invention, the spiral device is a partition board, and the partition board is disposed along the direction of the starting end and the tail end of the housing and spaced from the bottom wall of the housing; the aeration device is arranged at one side of the partition plate so that the sewage forms a circular flow around the partition plate, and the water supply device and the drainage tank are respectively arranged at two ends of the partition plate along the length direction of the partition plate so that the sewage flows along the length direction of the partition plate; and the drainage groove is higher than the clapboard.

In an embodiment of the present invention, a distance from the partition to the bottom wall of the housing is defined as a, and a condition is satisfied: a is more than or equal to 0.05 m; and/or, defining the distance from the aeration device to the partition board as B, and satisfying the following conditions: b is more than or equal to 0.05 m.

In an embodiment of the present invention, the first reaction body includes a plurality of first reaction carriers and a plurality of first reaction fillers, the plurality of first reaction carriers are disposed in the cavity along the direction from the initial end to the terminal end; the first reaction fillers are arranged in the first reaction carrier in a one-to-one correspondence manner; the concentration, weight and/or amount of the first reactive filler in the first reactive carrier decreases in sequence in the direction from the beginning to the end.

In an embodiment of the present invention, the first reactive filler includes at least one of suspended sludge and functional bacteria. And/or, the shape of the first reaction carrier comprises any one or combination of the following: sheet, mesh, porous, cloth-like, ring, powder, granule, ball, square, filament, rope, disk. And/or, the first reaction carrier comprises any one or combination of the following: suspension carrier, fixed carrier.

In an embodiment of the present invention, the first reaction filler includes a functional microbial inoculum and suspended sludge, and if a ratio of the functional microbial inoculum to the suspended sludge is defined as C, a condition is satisfied: c is between 0.1 and 100 percent.

In an embodiment of the invention, the sewage treatment device further includes a second reaction body, which is disposed in the cavity, is located on a side of the spiral device away from the aeration device and/or is located below the aeration device, and is used for generating an anaerobic or anoxic reaction.

In an embodiment of the present invention, the second reaction body includes a plurality of second reaction carriers and a plurality of second reaction fillers, and the plurality of second reaction carriers are disposed in the cavity along the direction from the initial end to the terminal end; the second reaction fillers are arranged in the second reaction carrier in a one-to-one correspondence manner; the concentration, weight and/or amount of the second reactive filler in the second reactive carrier decreases in the direction from the beginning to the end.

In an embodiment of the present invention, a support member is disposed in the housing, the support member is fixed on an inner wall of the housing, and the screw device, the aeration device, and the first reaction body are respectively fixed on the support member.

The technical scheme of the invention is that a spiral device is arranged to enable sewage to form spiral flow from the initial end to the tail end of a shell, the sewage concentration at the front end of a first reaction body is pushed by the spiral device to be mixed with part of the treated sewage and a rotating force drives pollutants in the sewage to be completely mixed, so that the concentration of the sewage flowing to the front end of the first reaction body is reduced, the concentration of the sewage is lower than that of the sewage at a water inlet, therefore, the effect of inhibiting reactants in the first reaction body is not caused, the reactants in the first reaction body can fully react with the pollutants in the sewage, a certain amount of pollutants are removed, the spiral flowing sewage forms a concentration gradient to the sewage, the reactants in the first reaction body can conveniently treat the pollutants in the sewage, and the treatment quality of the sewage is ensured, but also can accelerate the sewage treatment speed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view showing the construction of a wastewater treatment apparatus according to the present invention;

FIG. 2 is a schematic view showing the flow of wastewater in the wastewater treatment apparatus according to the present invention;

FIG. 3 is a schematic side view of a sewage treatment apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic side view of a sewage treatment apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic side view of a sewage treatment apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a first reactant according to the present invention.

The reference numbers illustrate:

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a sewage treatment device, aiming at more rapidly treating pollutants in sewage under the condition of not influencing the sewage treatment quality.

The following will explain the concrete structure of the sewage treatment apparatus according to the present invention in the concrete embodiment:

in the present embodiment, as shown in FIG. 1, the wastewater treatment apparatus 100 includes a housing 10, a screw device 20, an aeration device 30, and a first reaction body 40; a cavity 11 is formed in the shell 10, and the cavity 11 is used for containing sewage; the spiral device 20 is arranged in the cavity 11 to enable the sewage to form spiral flow from the initial end to the tail end of the shell 10; the aeration device 30 is arranged at one side of the spiral device 20, the first reaction body 40 is arranged in the cavity 11 and is positioned in the air injection direction of the aeration device 30 for generating nitration reaction; wherein the concentration, mass and/or amount of the reactants in the first reactant 40 decreases from the beginning to the end.

Although the conventional sewage treatment apparatus 100 employs a hybrid flow system, the hybrid flow system treatment method is slow in treatment speed, and a plug flow system is used to increase the treatment speed of the sewage treatment apparatus 100, in which a concentration gradient exists in the sewage flow direction, and the reaction rate can be increased to some extent, but microorganisms at the front end of the treatment apparatus directly expose to high-concentration sewage, and the activity of the microorganisms in a high-concentration state is easily suppressed, thereby affecting the quality of the treated sewage. The invention provides a sewage processor 100, which is provided with a spiral device 20, as shown in figure 2, so that sewage forms spiral flow from the initial end to the tail end of a shell 10, the sewage concentration at the front end of a first reaction body 40 is pushed by the spiral device 20 to be mixed with the partially processed sewage and the rotating force drives pollutants in the sewage to be completely mixed, further, the sewage concentration flowing to the front end of the first reaction body 40 is reduced, the sewage concentration is lower than that at a water inlet, therefore, the effect of inhibiting reactants in the first reaction body 40 is not caused, the reactants in the first reaction body 40 can fully react with the pollutants in the sewage, further, a certain amount of pollutants are removed, the spiral flowing sewage forms a concentration gradient to the sewage, and the reactants in the first reaction body 40 can selectively treat the pollutants in the sewage, thereby ensuring the treatment quality of the sewage and accelerating the treatment speed of the sewage.

Specifically, a cavity 11 is formed in the housing 10, the screw device 20 is arranged in the cavity 11, and the aeration device 30 is arranged at one side of the screw device 20; the first reaction body 40 is arranged in the cavity 11 and is positioned in the air injection direction of the aeration device 30; the first reaction body 40 is arranged in the air injection direction of the aeration device 30, so that the air generated by the aeration device 30 can directly reach the first reaction body 40 along with the sewage, and further, the nitrification reaction or the oxidation reaction can be favorably carried out with the reactant in the first reaction body 40; by the ingenious arrangement of the aeration device 30 and the spiral device 20, an aerobic zone, an anoxic zone and a mud-water separation zone can be integrated into a whole, and a plurality of functions of decarburization, denitrification, dephosphorization, precipitation separation and the like can be performed in the same reactor, so that integrated high-integration rapid biochemical treatment and precipitation effluent discharge are realized; the first reaction body 40 is used for aerobic oxidation (including nitration) and biological phosphorus uptake reaction.

In a feasible implementation mode, the mixing mode in the traditional sewage treatment device is generally a plug flow type or a complete mixing type, the plug flow type has a concentration gradient, the reaction rate can be improved to a certain extent, but microorganisms are easily exposed to the environment of high-concentration pollutants at the front end of the reactor, and the activity is easily inhibited; the mixed type has no concentration gradient, can protect the microorganism from being impacted, is not beneficial to mass transfer, and has lower reaction efficiency. The sewage in the sewage treatment device 100 of the invention is mixed in a spiral advancing mode, and has the advantages of plug flow and complete mixing, namely, the pollutant concentration gradient at the front end and the rear end of the reactor is kept, the reaction efficiency is improved, the inhibition of the inlet impact load on the activity of microorganisms is reduced, and the microorganism can treat the sewage with high reaction efficiency. The treating agent that sets up in the first reaction body can be biological colony and functional bacterial agent, and different types of microorganism is different to the affinity of pollutant, and some microorganism more are fit for reacting under high concentration pollutant environment, and some microorganism more are fit for reacting under low concentration pollutant environment. Microbial populations in the traditional reactor circularly flow at the front end and the rear end, so that characteristic microbes cannot be domesticated in a partitioning mode according to the difference of pollutant concentrations in the environment, and the treatment effect of the system is influenced; the microbial community on the biological membrane in the sewage treatment device 100 is distributed by the gradient distribution of the concentration of the polluted substances, so that the microbial community which is close to the water inlet end and adapts to the high-concentration pollutant and the microbial community which is close to the water outlet end and adapts to the low-concentration pollutant are domesticated, and the functional microbial communities are distributed as required, so that the treatment effect can be improved; and avoid the inhibitory action that high concentration sewage produced the microbial activity, the functional bacterial agent of this application is the inoculability type bacterial agent, and functional microorganism abundance is higher, and microbial activity is strong, and the reaction is rapid.

In the solution of the present embodiment, as shown in fig. 1, a water supply device 12 and a drainage tank 13 are provided in the housing 10, and a water supply port of the water supply device 12 is communicated with the cavity 11 and is located at the beginning of the housing 10; the drain channel 13 is provided on the side wall of the housing 10 and is located at the end of the housing 10.

Understandably, in order to form a better gradient in the sewage in the cavity 11, the water supply device 12 is arranged at the initial end of the housing 10, the sewage with a larger concentration flows spirally from the initial end to the terminal end, and the sewage passes through the reactant of the first reaction body 40 arranged on the upper side of the aeration device 30 to remove some pollutants in the sewage, so as to reduce the concentration of the sewage, that is, the sewage sequentially passes through the first reaction body 40 to react from the initial end to the terminal end of the housing 10, so that the pollutants in the sewage are less and less, and the concentration of the sewage is reduced, so that the pollutants in the sewage are less and less from the initial end to the terminal end of the housing 10, and the concentration of the sewage is lower and less and the pollutants in the sewage are least and the lowest when the sewage flows to the terminal end; a drain tank 13 is provided on the end of the housing 10, and the sewage flowing into the drain tank 13 is the sewage that has been treated by the first reaction body 40 to satisfy the discharge, and the sewage flows out of the drain tank 13 so that the discharged sewage satisfies the discharge standard.

In the solution of the present embodiment, as shown in fig. 1, the spiral device 20 is a partition board, which is disposed along the direction of the beginning and the end of the housing 10 and is spaced from the bottom wall of the housing 10; the aeration device 30 is arranged at one side of the partition board to make sewage form a circular flow around the partition board, and the water supply device 12 and the drainage tank 13 are respectively arranged at two ends of the partition board along the length direction of the partition board to make the sewage flow along the length direction of the partition board; and the drain channel 13 is higher than the partition.

It will be appreciated that, for cost saving and simplicity of arrangement, the screw means 20 is provided as a partition which is arranged in the direction of the beginning and end of the casing 10 and spaced from the bottom wall of the casing 10; the water supply and drainage of the drainage tank 13 through the water supply device 12, the flow direction of the sewage in the cavity 11 is from the initial end to the terminal end, the aeration device 30 is arranged on one side of the partition plate, provides power for the sewage on one side of the partition plate, drives the sewage to roll upwards, forms a flow mode around the circular flow of the partition plate, further forms the spiral flow of the sewage in the cavity 11 around the partition plate, enables the sewage to spirally flow by taking the partition plate as the center under the condition of not additionally applying power, simplifies the device, saves the setting cost, and prevents the problem of failure caused by the arrangement of the driving device.

In a practical manner, the screw device 20 may also be a screw impeller, and the screw worm wheel is driven to rotate by an additional driving device, so as to drive the sewage to flow around the screw worm wheel.

In the technical solution of this embodiment, a distance from the partition to the bottom wall of the housing 10 is defined as a, and the following condition is satisfied: a is more than or equal to 0.05 m; and/or, defining the distance from the aeration device 30 to the partition board as B, and satisfying the following conditions: b is more than or equal to 0.05 m.

It can be understood that the distance from the bottom surface of the partition to the top surface of the bottom wall is a, that is, the distance from the partition to the bottom wall of the housing 10 is greater than 0.05m, and if the distance between the partition and the bottom wall is less than 0.05m, the sewage is not beneficial to flowing from one side of the partition to the other side, and the spiral rotation cannot be formed; in embodiments where the water depth within the cavity 11 is about 2m, a is no greater than 1 m.

In a possible embodiment, the distance from the side of the aeration device 30 close to the partition to the side of the partition close to the aeration device 30 is B, that is, the distance from the aeration device 30 to the partition is greater than 0.05m, and the distance from the aeration device 30 to the partition is less than 0.05m, then the aeration device 30 turns over with the sewage, is blocked by the partition, moves towards the other side of the partition, and then the sewage cannot flow to the other side of the partition well, cannot form a circular flow, and further cannot form a spiral flow.

In the solution of the present embodiment, as shown in fig. 6, the first reaction body 40 includes a plurality of first reaction carriers 41 and a plurality of first reaction fillers 42, the plurality of first reaction carriers 41 are disposed in the cavity 11 along the direction from the beginning to the end; the first reaction fillers 42 are arranged in the first reaction carriers 41 in a one-to-one correspondence manner; the concentration, weight and/or amount of first reactive charge 42 within first reactive carrier 41 decreases in sequence from beginning to end.

It can be understood that, in order to reduce the cost and reduce the arrangement or manufacture of the reaction packing, according to the spiral sewage flow mode, as the sewage reacts in the first reaction body 40, the concentration of the sewage and the amount of the pollutants contained therein are reduced in sequence from the beginning to the end, correspondingly, the concentration, weight and/or amount of the first reaction packing 42 in the first reaction carrier 41 are reduced in sequence from the beginning to the end, thereby realizing the rapid sewage treatment.

In a feasible embodiment, the sewage in the cavity 11, along with the reaction of the pollutants in the sewage in the first reaction body 40, gradually decreases in concentration in a gradient manner along the direction from the beginning to the end, and the distribution of pollutants such as organic matters, ammonia nitrogen and the like in the sewage also decreases in a step manner; set first reaction filler 42 as the biomembrane, the load is born the weight of the microorganism on the biomembrane, when domesticating the microbial inoculum, be the mode that cascaded decline carries out the distribution situation according to sewage, when initial position, have more microbial inoculum, when terminal position, have less microbial inoculum, and the microbial flora in different positions is got rid of to specific pollutant in different positions, provides good reaction environment to carry out the pertinence to sewage and react, make the efficiency of getting rid of microbial activity and pollutant have showing improvement than traditional complete hybrid reactor.

In a possible embodiment, the first reactive filler 42 is a functional bacterial agent and suspended sludge, and the quantity of the functional bacterial agent is reduced in a stepwise manner and the quantity of the suspended sludge is reduced in a stepwise manner along the direction from the beginning to the end.

In the technical solution of this embodiment, the first reactive filler 42 includes at least one of suspended sludge and functional bacteria.

It can be understood that the first reactive filler 42 is a functional microbial inoculum, which is supported by a biological membrane, and treats the pollutants in the sewage with microorganisms to remove the pollutants in the sewage.

In one possible embodiment, the first reactive filler 42 is suspended sludge carried by a biofilm, and the suspended microbial flocs are used to treat pollutants in the wastewater.

In a possible embodiment, the first reactive filler 42 is a mixture of suspended sludge and functional bacteria, and the mixture ratio of the suspended sludge and the functional bacteria is set according to the types of pollutants in the sewage.

In the technical solution of the present embodiment, the shape of the surface of the first reaction carrier 41 includes any one or a combination of the following: sheet, mesh, porous, cloth-like, ring, powder, granule, ball, square, filament, rope, disk.

It is understood that the surface of the first reaction carrier 41 may be one or a combination of a sheet, a net, a porous, a cloth, a ring, a powder, a granule, a ball, a square, a filament, a rope, and a disc, and is differently configured according to different sewages.

In one possible embodiment, the first reaction carrier 41 is a suspension carrier, the surface of the suspension carrier can be selected from various shapes such as a sheet, a net, a porous shape, a cloth pattern, a flat plate shape, etc., and the surface of the suspension carrier is treated by a physical or chemical method.

In one possible embodiment, the first reaction carrier 41 is a suspension carrier, and the optional surface of the suspension carrier is in various forms such as ring, sheet, powder, granule, etc.; and the surface of the suspension carrier is treated by a physical or chemical method.

In one possible embodiment, the first reaction carrier 41 is an immobilization carrier, the surface of the immobilization carrier can be selected from various shapes such as sphere, square, filament, rope, disk, etc., and the surface of the suspension carrier is treated by physical or chemical methods.

In the technical scheme of this embodiment, the first reactive filler 42 includes a functional microbial inoculum and suspended sludge, and the ratio of the functional microbial inoculum to the suspended sludge is defined as C, so that the following conditions are satisfied: c is between 0.1 and 100 percent.

It can be understood that, corresponding to different kinds of sewage, different sizes of the mixture ratio can be adopted to set the functional microbial inoculum and the suspended sludge, the first reaction filler 42 comprises the functional microbial inoculum and the suspended sludge, and the mixture ratio of the functional microbial inoculum to the suspended sludge is 0.1% to 100%.

In the technical solution of this embodiment, the first reaction carrier 41 includes any one or combination of the following: suspension carrier, fixed carrier.

It is understood that different carriers can be provided according to different sewages, and multiple carrier forms can be provided at the same time, and the first reaction carrier 41 includes any one or combination of the following: suspension carrier, fixed carrier.

In one possible embodiment, the first reaction body 40 further comprises a carrier frame 43, the first reaction carrier 41 is a combination of a suspension carrier, a suspension carrier and a fixing carrier, and the suspension carrier is suspended in the carrier frame 43 and is located in the middle of the carrier cavity; the suspension carrier is suspended at the upper side of the suspension carrier in the carrier frame 43 and is positioned in the middle of the carrier cavity; the fixed carriers are fixed on the carrier frame 43 and located at both side positions of the suspended carrier.

In a feasible embodiment, the first reaction carrier 41 is a suspension carrier, the suspension carrier is fixed on a carrier frame 43 of the housing in a circular tube shape, the suspension carrier is vertically arranged in the carrier frame 43 along the direction of water flow, a plurality of suspension carriers are respectively arranged on the carrier frame 43, the surface of each suspension carrier is in a net shape convenient for water to enter and exit, a plurality of layers of domestication films are arranged in the suspension carriers and used for growing bacterial colonies to further form a microbial film layer, sewage is treated, the surface shape of the suspension carrier can be in various shapes such as a sheet shape, a net shape, a porous shape, a cloth pattern shape, a flat plate shape and the like, and the surface of the suspension carrier is treated by a physical or chemical method to obtain a flat surface.

In a possible embodiment, the first reaction carrier 41 is a suspension carrier, the suspension carrier is disposed in a fixed space in the carrier frame 43, is not fixed on the carrier frame 43, can freely flow in a certain range along with the flow of the sewage, and the suspension carrier in the carrier frame 43 has various sizes and shapes, and the surface of the suspension carrier can be in various forms such as ring, sheet, powder and granule, and is used for better contacting with and penetrating through the sewage; the surface and the inner space of the suspension carrier are communicated, and the surface and the inner space of the suspension carrier are both provided with domestication membranes, and when the domestication membranes domesticate the microbial inoculum, the microbial inoculum grows on and is fixed on the domestication membranes for reacting pollutants in the sewage.

In a possible embodiment, the first reaction carrier 41 is a fixed carrier, as shown in fig. 6, a plurality of fixed carriers are arranged in a carrier frame 43 according to a certain rule, the fixed carriers have different shapes, but the fixed carriers in the same space are identical; in order to better attach the biofilm layer, the surface of the fixing carrier can be in various forms such as a sphere, a square, a thread, a rope, a disc and the like, so that the first reaction filler can be fully placed in the space formed by the fixing carrier, and the fixing carrier is used as a fixing carrier.

In the technical solution of this embodiment, the sewage treatment device 100 further includes a second reaction body 50, and the second reaction body 50 is disposed in the cavity 11 and located on a side of the spiral device 20 away from the aeration device 30 and/or located below the aeration device 30, and is used for generating an anaerobic or anoxic reaction.

It will be appreciated that the second reaction body 50 is provided on a side of the screw means 20 facing away from the aeration means 30 and/or below the aeration means 30 where there is a scarcity of oxygen in the contaminated water and thus where anaerobic or anoxic reactions (including denitrification, biological phosphorus release, etc.) occur, the second reaction body 50 comprising a carrier frame 43 for securing within the housing 10, a carrier assembly for carrying biofilm secured within the carrier frame 43, which carrier assembly may be a suspended carrier, a fixed carrier.

In a possible embodiment, the second reaction body 50 is arranged in the cavity 11 on the side of the screw means 20 facing away from the aeration means 30.

In a possible embodiment, as shown in fig. 4, the second reaction body 50 is arranged in the cavity 11 on the side of the screw means 20 facing away from the aeration means 30 and below the aeration means 30. The anaerobic environment is more fully utilized to carry out denitrification reaction and anaerobic reaction on pollutants in the sewage.

In the technical solution of this embodiment, the second reaction body 50 includes a plurality of second reaction carriers and a plurality of second reaction fillers, and the plurality of second reaction carriers are disposed in the cavity 11 along the direction from the beginning to the end; the second reaction fillers are arranged in the second reaction carrier in a one-to-one correspondence manner; the concentration, weight and/or amount of the second reactive filler in the second reactive carrier is arranged to decrease in turn in the beginning to end direction.

It can be understood that a plurality of second reaction carriers are arranged in the cavity 11 along the length direction of the partition board, the anaerobic environment in the cavity 11 is fully utilized to carry out denitrification reaction and anaerobic reaction on pollutants in sewage, and as the sewage in the cavity 11 is arranged in a step shape from the beginning to the end, in order to reduce cost, the number and the type of the second reaction fillers can be set according to the concentration and the components of the sewage, and the concentration, the weight and/or the number of the second reaction fillers in the second reaction carriers can be sequentially reduced and set according to the direction from the beginning to the end.

Specifically, the second reaction carrier includes a carrier frame 43 and a carrier component, the carrier frame 43 is provided with the carrier component, the carrier component is used for carrying a biological membrane, the biological membrane is a microbial population obtained by domestication in the cavity 11, and then is used for reacting with pollutants in the sewage to remove the pollutants in the sewage. The carrier component comprises one or a combination of a suspension carrier, a suspension carrier and a fixed carrier.

In the technical solution of this embodiment, a support member is disposed in the housing 10, the support member is fixed on the inner wall of the housing 10, and the screw device 20, the aeration device 30, and the first reaction body 40 are respectively fixed on the support member.

Understandably, the fixed screw device 20, the aeration device 30 and the first reaction body 40 are connected through the supporting piece, so that the contact connection between the device and the shell 10 is reduced, and the screw device 20 can stir the sewage more fully and drive the sewage to flow; so that the aeration device 30 can provide oxygen for the sewage on one side of the aeration device 30 or provide flowing power for the sewage more fully; so that the first reaction body 40 can sufficiently react with the pollutants in the sewage; and the second reaction body 50 is also fixed to the housing 10 by a support. A support member may be integrally provided with the housing 10, the support member protruding from the bottom wall of the housing 10 for connecting the screw means 20, the aeration means 30, the first reaction body 40 and the second reaction body 50.

In the present embodiment, the sewage treatment apparatus 100 further includes a slag discharging device provided on the bottom wall of the housing 10 corresponding to the drain tank 13 for discharging the reacted pollutants and sludge.

In the technical solution of this embodiment, the aeration device 30 includes a plurality of aeration openings, and the aeration openings can be arranged in parallel at one side of the partition plate along the length direction of the partition plate, and the aeration openings can be arranged in parallel.

In one embodiment, as shown in FIG. 5, the wastewater treatment apparatus 100 comprises six partition plates, namely a first partition plate, a second partition plate, a third partition plate, a fourth partition plate, a fifth partition plate and a sixth partition plate, three aeration devices 30, three first reaction bodies 40 and four second reaction bodies 50, which are sequentially arranged at intervals; the aeration devices 30 are respectively arranged between the first partition plate and the second partition plate, between the third partition plate and the fourth partition plate, and between the fifth partition plate and the sixth partition plate, the first reaction bodies 40 are respectively arranged at the upper sides of the aeration devices 30, and the four second reaction bodies 50 are respectively arranged between the second partition plates and between the third partition plates, between the fourth partition plates and between the fifth partition plates, at one side of the first partition plate far away from the second partition plate, and at one side of the sixth partition plate far away from the fifth partition plate.

In one possible embodiment, as shown in fig. 3, the sewage treatment apparatus 100 includes two partition plates, two aeration devices 30 and two first reaction bodies 40, the two partition plates are arranged at intervals, the two aeration devices 30 are respectively arranged at two sides of the partition plates, and the two first reaction bodies 40 are respectively arranged at the upper sides of the aeration devices 30 corresponding to the aeration devices 30.

The present invention provides a first embodiment

As shown in fig. 3, the sewage treatment apparatus 100 includes a housing 10, two partition plates, two aeration devices 30, two first reaction bodies 40, and a second reaction body 50, wherein the two partition plates are arranged at intervals, the two aeration devices 30 are respectively arranged at two sides of the partition plates, the two first reaction bodies 40 are respectively arranged at the upper sides of the aeration devices 30 corresponding to the aeration devices 30, and the second reaction body 50 is arranged between the two partition plates; a cavity 11 is formed in the shell 10, and a water supply device 12 and a drainage groove 13 are arranged in the cavity; the water supply device 12 is arranged at the initial end and positioned in the middle or two sides of the two partition boards, the drainage groove 13 is arranged at the tail end, and the length direction of the drainage groove 13 is vertical to that of the partition boards, so that the sewage after transverse treatment can be discharged through the drainage groove 13; and the height of the drain groove 13 is higher than that of the partition.

In the embodiment, the nitrobacter agent which is acclimated and fermented in advance is inoculated before starting, inoculation can be completed within 1 day, and then water is fed normally. Untreated sewage firstly enters the cavity 11 through the water supply device 12, flows upwards through the first reaction body 40 under the action of air-lift power of the aeration device 30 to complete decarburization and nitration reaction, flows downwards through the other side of the partition plate after turning over the partition plate at the top of the shell 10, can complete biochemical reaction through suspended sludge in the second reaction body 50 in the region, then continues to flow upwards to the first reaction body 40 through the air-lift action of the bottom aeration device 30 to perform oxidation reaction, and repeatedly spirally advances to complete a series of aerobic biochemical reactions. And finally, the effluent overflows to a drainage tank 13 above the tail end of the shell 10, so that the high-efficiency decarbonization, denitrification and dephosphorization treatment of the sewage is realized.

The present invention provides a second embodiment

As shown in fig. 4, the sewage treatment apparatus 100 includes a housing 10, a partition, an aeration device 30, a first reaction body 40, and a second reaction body 50, wherein the aeration device 30 is respectively disposed at one side of the partition, the first reaction body 40 is disposed at an upper side of the aeration device 30 corresponding to the aeration device 30, and the second reaction body 50 is disposed at the other side of the partition and at a lower side of the aeration device 30; a cavity 11 is formed in the shell 10, and a water supply device 12 and a drainage groove 13 are arranged in the cavity; the water supply device 12 is arranged at the initial end, the drainage groove 13 is arranged at the tail end, and the length direction of the drainage groove 13 is vertical to that of the partition plate, so that the sewage after transverse treatment can be discharged through the drainage groove 13; and the height of the drain groove 13 is higher than that of the partition.

In this embodiment, before the pre-sewage treatment apparatus 100 is started, the ratio of the water to the water is 3: 20: 77, inoculating the nitrobacter, the denitrifying bacteria and the activated sludge which are domesticated and fermented in advance, completing inoculation within 1 day, and then normally feeding water. Untreated sewage firstly enters the cavity 11 through the water supply device 12, flows upwards through the first reaction body 40 under the action of air-lift power of the aeration device 30 to complete decarburization and nitration reaction, flows downwards through the other side of the partition plate after turning over the partition plate at the top of the shell 10, can pass through suspended sludge and denitrifying bacteria in the second reaction body 50 in the region to generate denitrification reaction and anoxic reaction, then continuously flows upwards to the first reaction body 40 through the air-lift action of the bottom aeration device 30 to generate oxidation reaction, and repeatedly spirally advances to complete a series of aerobic-anoxic-aerobic reaction. And finally, the effluent overflows to a drainage tank 13 above the tail end of the shell 10, so that the high-efficiency decarbonization, denitrification and dephosphorization treatment of the sewage is realized.

The present invention provides a third embodiment

As shown in fig. 5, the sewage treatment apparatus 100 includes a housing 10, a plurality of partition plates, a plurality of aeration devices 30, a plurality of first reaction bodies 40, a plurality of second reaction bodies 50, wherein the aeration devices 30 are disposed between the two partition plates, and each aeration device 30 is provided with an aeration device at intervals of two partition plates, the first reaction body 40 is disposed on the upper side of the aeration device 30 corresponding to the aeration device 30, and the second reaction body 50 is disposed on the side of the partition plates without the aeration device 30 for generating denitrification reaction and anoxic reaction; a cavity 11 is formed in the shell 10, and a water supply device 12 and a drainage groove 13 are arranged in the cavity; the water supply device 12 is arranged at the initial end, the drainage groove 13 is arranged at the tail end, and the length direction of the drainage groove 13 is vertical to that of the partition plate, so that the sewage after transverse treatment can be discharged through the drainage groove 13; and the height of the drain groove 13 is higher than that of the partition.

In this embodiment, before the pre-sewage treatment apparatus 100 is started, the ratio of 20: 30: inoculating the pre-acclimated and fermented nitrifying bacteria agent, denitrifying bacteria agent and activated sludge in a proportion of 50, completing inoculation within 1 day, and then normally feeding water. Untreated sewage firstly enters the cavity 11 through the water supply device 12, flows upwards through the first reaction body 40 under the action of air-lift power of the aeration device 30 to complete decarburization and nitration reaction, flows downwards through the other side of the partition plate after turning over the partition plate at the top of the shell 10, can pass through suspended sludge and denitrifying bacteria in the second reaction body 50 in the region to generate denitrification reaction and anoxic reaction, then continuously flows upwards to the first reaction body 40 through the air-lift action of the bottom aeration device 30 to generate oxidation reaction, and repeatedly spirally advances to complete a series of aerobic-anoxic-aerobic biochemical reactions. And finally, the effluent overflows to a drainage tank 13 above the tail end of the shell 10, so that the high-efficiency decarbonization, denitrification and dephosphorization treatment of the sewage is realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A wastewater treatment apparatus, comprising:

the sewage treatment device comprises a shell, a water tank and a water tank, wherein a cavity is formed in the shell and is used for containing sewage;

the spiral device is arranged in the cavity so as to enable the sewage to form spiral flow from the initial end to the tail end of the shell;

the aeration device is arranged on one side of the spiral device; and

the first reaction body is arranged in the cavity and positioned in the air injection direction of the aeration device and is used for reacting with pollutants in the sewage.

2. The sewage processor of claim 1, wherein a water supply device and a drainage tank are arranged in the housing, and a water supply port of the water supply device is communicated with the cavity and is positioned at the initial end of the housing; the drainage channel is arranged on the side wall of the shell and is positioned at the tail end of the shell.

3. The sewage processor of claim 2, wherein the spiral device is a partition plate which is arranged along the direction of the initial end and the final end of the shell and is arranged at a distance from the bottom wall of the shell;

the aeration device is arranged at one side of the partition plate so that the sewage forms a circular flow around the partition plate, and the water supply device and the drainage tank are respectively arranged at two ends of the partition plate along the length direction of the partition plate so that the sewage flows along the length direction of the partition plate; and the drainage groove is higher than the clapboard.

4. The sewage processor of claim 1, wherein the distance from the partition plate to the bottom wall of the housing is defined as A, and the following condition is satisfied: a is more than or equal to 0.05 m;

and/or, defining the distance from the aeration device to the partition board as B, and satisfying the following conditions: b is more than or equal to 0.05 m.

5. The wastewater processor of claim 1, wherein the first reaction body comprises:

a plurality of first reaction carriers disposed within the cavity in a direction from the beginning to the end; and

the first reaction fillers are arranged in the first reaction carrier in a one-to-one correspondence manner; the concentration, weight and/or amount of the first reactive filler in the first reactive carrier decreases in sequence in the direction from the beginning to the end.

6. The sewage processor of claim 5, wherein the first reactive filler comprises at least one of suspended sludge and a functional microbial inoculum;

and/or, the shape of the first reaction carrier comprises any one or combination of the following: sheet, mesh, porous, cloth-like, ring, powder, granule, ball, square, thread, rope, disk;

and/or, the first reaction carrier comprises any one or combination of the following: suspension carrier, fixed carrier.

7. The sewage processor of claim 5, wherein the first reaction filler comprises a functional microbial inoculum and suspended sludge, and if the ratio of the functional microbial inoculum to the suspended sludge is defined as C, the following conditions are satisfied: c is between 0.1 and 100 percent.

8. The wastewater treatment facility of claim 1, further comprising:

and the second reaction body is arranged in the cavity, is positioned on one side of the spiral device, which is far away from the aeration device, and/or is positioned below the aeration device, and is used for generating anaerobic or anoxic reaction.

9. The wastewater processor of claim 8, wherein the second reaction body comprises:

a plurality of second reaction carriers disposed within the cavity in a direction from the beginning to the end; and

the second reaction fillers are arranged in the second reaction carrier in a one-to-one correspondence manner; the concentration, weight and/or amount of the second reactive filler in the second reactive carrier decreases in the direction from the beginning to the end.

10. The wastewater treatment apparatus according to any one of claims 1 to 9, wherein a support is provided in the housing, the support is fixed to an inner wall of the housing, and the screw device, the aeration device, and the first reaction body are respectively fixed to the support.