Integrated treatment equipment for sewage containing new coronavirus

Abstract

The utility model discloses integrated treatment equipment for sewage containing new coronavirus, which comprises a base, and a pre-disinfection tank, a septic tank, a coagulative precipitation tank, a filter tank, a secondary disinfection tank, a dechlorination tank, an ultrafiltration tank and a tertiary disinfection tank are sequentially and fixedly mounted on the base from left to right. The heights of the pre-disinfection tank, the septic tank, the coagulative precipitation tank, the filter tank, the secondary disinfection tank, the dechlorination tank, the ultrafiltration tank and the tertiary disinfection tank are equal, and the pre-disinfection tank, the septic tank, the coagulative precipitation tank, the filter tank, the secondary disinfection tank, the dechlorination tank and the ultrafiltration tank are communicated with one another at a distance from the top of the pre-disinfection tank, the septic tank, the coagulative precipitation tank, the filter tank, the secondary disinfection tank, the dechlorination tank and the ultrafiltration tank.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated equipment, in particular to an integrated treatment equipment for sewage containing novel coronavirus. Background Technique

[0002] The sewage generated by medical institutions has complex components, and the quantity, variety and toxicity of viruses and bacteria contained therein are large. It is necessary to treat medical sewage in a timely manner, which requires higher convenience and safety for construction and installation.

[0003] In different periods, due to different understandings and attentions of people towards medical treatment and environmental protection, and different construction periods of medical institutions, the relevant supporting environmental protection facilities vary greatly. The conventional disinfection process can no longer ensure the foolproof treatment effect of germs.

[0004] The general process of hospital sewage discharge treatment is indoor collection - outdoor septic tank - outdoor sewage pipe network - centralized sewage treatment equipment - discharge to the municipal sewage pipe network. The basic treatment process of the centralized sewage treatment equipment is pretreatment + secondary biological treatment + disinfection. When the traditional septic tank treats solid waste, there is a lack of disinfection process, and a large amount of disinfectant used before sewage biochemical treatment leads to a high residual chlorine content in the sewage, and neither the biochemical treatment effect nor the sewage disinfection effect can be guaranteed.

[0005] Therefore, based on the above technical problems, the utility model provides an integrated treatment equipment for sewage containing novel coronavirus. By adding an enhanced disinfection process on the basis of the traditional septic tank treating solid waste, the purpose of reducing the risk of virus transmission is achieved. Summary of the Invention

[0006] In view of the problems in the related art, the utility model discloses an integrated treatment equipment for sewage containing novel coronavirus, which solves the problems that there is a lack of disinfection process when the traditional septic tank treats solid waste, and a large amount of disinfectant used before sewage biochemical treatment leads to a high residual chlorine content in the sewage, and neither the biochemical treatment effect nor the sewage disinfection effect can be guaranteed as described in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] An integrated treatment equipment for sewage containing novel coronavirus includes a base. A pre-disinfection tank, a septic tank, a coagulation sedimentation tank, a filtration tank, a secondary disinfection tank, a dechlorination tank, an ultrafiltration tank and a tertiary disinfection tank are fixedly installed on the base in sequence from left to right. The pre-disinfection tank, the septic tank, the coagulation sedimentation tank, the filtration tank, the secondary disinfection tank, the dechlorination tank, the ultrafiltration tank and the tertiary disinfection tank have the same height. A section of the pre-disinfection tank, the septic tank, the coagulation sedimentation tank, the filtration tank, the secondary disinfection tank, the dechlorination tank and the ultrafiltration tank that is at a certain distance from the top is communicated.

[0009] The pre-disinfection tank realizes the pre-disinfection treatment of sewage, ensures the subsequent safe operation of the sewage treatment station, and improves the inactivation effect of the novel coronavirus;

[0010] The septic tank is a sedimentation tank with a heating device for removing suspended organic matter in sewage;

[0011] The coagulation sedimentation tank ensures the ammonia nitrogen removal rate in sewage and treats the sludge formed after sedimentation;

[0012] The filter tank realizes the backwashing of sewage;

[0013] The secondary disinfection tank inactivates bacteria, fungi, viruses, etc. in sewage;

[0014] The dechlorination tank ensures that the residual chlorine value after sewage treatment meets the effluent requirements;

[0015] The ultrafiltration tank ensures that macromolecular substances such as suspended solids, colloids, and microorganisms in sewage are intercepted, achieving effective removal of pollutants;

[0016] The tertiary disinfection tank is equipped with a flow-through ultraviolet disinfection and sterilization device to ensure that residual bacteria and viruses in water can be quickly inactivated. The left side of the flow-through ultraviolet disinfection and sterilization device is connected to the ultrafiltration tank through a pipeline; the right side of the flow-through ultraviolet disinfection and sterilization device is connected to the water outlet set on the right side of the tertiary disinfection tank through a pipeline.

[0017] Preferably, the pre-disinfection tank includes a first compartment and a second compartment arranged in parallel, and also includes a grille. The grille is inclined and installed in the first compartment, and sodium hypochlorite with an effective chlorine content of 20 mg / L is added to the second compartment. The pre-disinfection contact time of sewage with the sodium hypochlorite in the second compartment is not less than 1 h.

[0018] Preferably, a partition connected to the bottom and slightly lower than the liquid level is provided at the middle position of the septic tank, and the heating device is installed at the bottom left position of the partition. The residence time of sewage in the septic tank is not less than 36 h.

[0019] Preferably, the coagulation sedimentation tank is divided into a coagulation reaction tank and a sedimentation tank arranged in parallel. Coagulants PAC, PAM, and ammonia nitrogen remover are added to the coagulation reaction tank, and the sedimentation tank is used for sedimenting the sludge after treatment.

[0020] Preferably, a backwashing device is provided inside the filter tank.

[0021] Preferably, the secondary disinfection tank is a fiberglass tank, and trichloroisocyanuric acid is added to the fiberglass tank. The residence time of sewage in the fiberglass tank is 3 h.

[0022] Preferably, a dechlorination chemical dosing metering pump is provided in the dechlorination tank, and sodium thiosulfate dechlorination agent is added to the dechlorination tank through the dechlorination chemical dosing metering pump.

[0023] Preferably, the ultrafiltration tank is a fully automatic flat ceramic membrane ultrafiltration purification system. The flat ceramic membrane ultrafiltration purification system adopts two sets of integrated boxes, and the flat membrane aperture of the flat ceramic membrane is 0.1 μm.

[0024] Preferably, the secondary disinfection tank is a fiberglass reinforced plastic tank, and a biological disinfection treatment agent is added to the fiberglass reinforced plastic tank.

[0025] An integrated treatment device for sewage containing novel coronavirus proposed by the present utility model has the following beneficial technical effects:

[0026] In the present utility model, the process flow of pre-disinfection + septic tank + coagulation sedimentation + filtration + secondary disinfection + dechlorination + ultrafiltration + tertiary disinfection is adopted, which maximally ensures the disinfection effect and prevents the spread of the virus. At the same time, the physical and chemical treatment unit is used instead of the secondary biological treatment, so that the effluent SS and COD Cr indicators can meet the standards. In the coagulation sedimentation treatment unit, most of the suspended organic matters and microbial cell bodies in the sewage are effectively removed at this stage; the settled sludge enters the sludge treatment equipment after sedimentation, and the sludge accumulated in other process units is subjected to sludge dewatering and disinfection treatment together; in the flat ceramic membrane ultrafiltration unit, harmful substances and bacteria that are difficult to remove are further intercepted, and finally the effluent enters the existing sewage treatment station after ultraviolet disinfection and is discharged after meeting the standards.

[0027] (2) In the present utility model, the sewage treatment units are centrally arranged to avoid the dispersion of pollution sources and difficult control. All the treatment process equipment and structures from the pre-disinfection tank to the end discharge port are centrally arranged on a complete base. The integrated equipment layout is convenient for construction and installation, and is located below the local summer dominant wind direction, adopting a fully enclosed system to prevent the virus from spreading through sewage and air.

[0028] (3) In the present utility model, high temperature and ultraviolet rays are used to kill the novel coronavirus, and chlorine-containing disinfectants have a good inactivation effect on the novel coronavirus. Therefore, the enhanced disinfection treatment of the present utility model can ensure the killing of the novel coronavirus.

[0029] (4) The present utility model adopts technologies such as automatic control of flow rate, water level, chemical dosage, etc., which is convenient for maintenance and management.

[0030] In summary, the utility model adopts a physicochemical process combination that is efficient, environmentally friendly, and has stable effluent quality, ensuring that indicators such as SS and COD Cr meet the standards. High temperature, ultraviolet light, and chlorine-containing disinfectants have good inactivation effects on the novel coronavirus. An integrated treatment device for sewage containing the novel coronavirus of the utility model has the advantages of rapid construction, convenient installation, more stable operation, convenient management, and high virus removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0032] In the figure: 10, base; 20, pre-disinfection tank; 21 grille; 22, first compartment; 23, second compartment; 30, septic tank; 31, heating device; 32, partition; 40, coagulation sedimentation tank; 41, coagulation tank; 45, sedimentation tank; 50, filtration tank; 60, secondary disinfection tank; 70, dechlorination tank; 80, ultrafiltration tank; 90, tertiary disinfection tank; 91, flow-through ultraviolet disinfection and sterilization device; 92, discharge port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Here, exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure detailed in the appended claims.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, the descriptions such as "first" and "second" in the embodiments are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] In order to further understand the content, characteristics and effects of the present utility model, the following embodiments are cited and described in detail with reference to the accompanying drawings as follows:

[0037] Research shows that the physical and chemical properties of the novel coronavirus are similar to those of the SARS virus. It is sensitive to high temperature and ultraviolet light, and chlorine-containing disinfectants have good inactivation effects on it. Therefore, strengthening disinfection treatment can ensure the killing of the virus.

[0038] According to the tolerance and transmission law of the COVID-19 virus, a process flow of pretreatment (pre-disinfection) + septic tank + coagulation sedimentation + filtration + secondary disinfection + dechlorination + ultrafiltration + tertiary disinfection is adopted.

[0039] As Figure 1 shown, according to the above process flow, this embodiment provides an integrated treatment device for sewage containing the COVID-19 virus, including a base 10, on which a pre-disinfection tank 20, a septic tank 30, a coagulation sedimentation tank 40, a filtration tank 50, a secondary disinfection tank 60, a dechlorination tank 70, an ultrafiltration tank 80 and a tertiary disinfection tank 90 are fixedly installed in sequence from left to right. The designed pre-disinfection tank 20, septic tank 30, coagulation sedimentation tank 40, filtration tank 50, secondary disinfection tank 60, dechlorination tank 70, ultrafiltration tank 80 and tertiary disinfection tank 90 are of comparable height, and the pre-disinfection tank 20, septic tank 30, coagulation sedimentation tank 40, filtration tank 50, secondary disinfection tank 60, dechlorination tank 70 and ultrafiltration tank 80 are partially connected at a certain distance from the top.

[0040] The tertiary disinfection process is adopted to ensure the disinfection effect to the greatest extent and prevent the spread of the virus. At the same time, the physical and chemical treatment unit replaces the secondary biological treatment, which can make the effluent SS and COD Cr indicators meet the standards. In the coagulation sedimentation tank 40 treatment unit, most of the suspended organic matter and microbial cell bodies in the sewage are effectively removed at this stage. The settled sludge enters the sludge treatment equipment after sedimentation, and the sludge accumulated in other process units is also subjected to sludge dewatering and disinfection treatment. In the flat ceramic membrane ultrafiltration unit of the ultrafiltration tank 80, harmful substances and bacteria that are difficult to remove are further intercepted, and finally the effluent is disinfected by ultraviolet light and then enters the existing hospital sewage treatment station, and is discharged after meeting the standards.

[0041] On the basis of ensuring that each treatment unit has sufficient hydraulic retention time (HRT), this process adopts tertiary disinfection and physical-chemical method. The overall process is safe, environmentally friendly, stable and reliable in operation, and the treatment effect is less affected by environmental conditions, which can ensure the removal of infectious germs and viruses. The whole disinfection process is described as follows:

[0042] 1. Pretreatment system

[0043] According to the "Discharge Standard of Water Pollutants for Medical Institutions", infectious disease medical institutions need to have pre-disinfection treatment and set up special septic tanks to collect infectious wastes such as feces and excreta after disinfection treatment.

[0044] (1)Pre-disinfection tank 20

[0045] The pre-disinfection tank 20 realizes the pre-disinfection treatment of sewage, ensures the safe operation of the subsequent sewage treatment station, and improves the inactivation effect of the novel coronavirus. The designed pre-disinfection tank 20 includes a first cell 22 and a second cell 23 arranged in parallel. A grille 21 is inclinedly installed in the first cell 22 to block large-particle impurities, branches and leaves and other sundries from entering the second cell 23; the sewage to be treated enters the second cell 23 through the first cell 22, and sodium hypochlorite with an effective chlorine content of 20 mg / L is added in the second cell 23, and the pre-disinfection contact time of the sewage with sodium hypochlorite in the second cell 23 is not less than 1 h. This process uses sodium hypochlorite for disinfection, and its advantages are rapid action, obvious disinfection effect on biological viruses or organic molecular toxic substances, low price, few toxic by-products generated by sodium hypochlorite, and little impact on the subsequent process.

[0046] (2)Septic tank 30

[0047] The septic tank 30 is a sedimentation tank that uses sedimentation and anaerobic digestion to remove suspended organic matter in sewage. This design meets the requirement in the relevant national sewage treatment design specifications that the residence time of sewage in the septic tank is not less than 36 h. A partition 32 connected to the bottom and slightly lower than the liquid level is provided at the middle position of the septic tank 30. The septic tank 30 is cleaned out at regular intervals, and its sludge is transported away as hazardous waste for separate treatment. The new coronavirus is not resistant to high temperatures, and a heating device 31 is provided in the septic tank 30. The heating device 31 is installed at the left bottom position of the partition 32.

[0048] 2. Coagulation sedimentation, filtration and secondary disinfection system

[0049] (1)Coagulation sedimentation tank 40

[0050] The coagulation sedimentation tank 40 is divided into a coagulation reaction tank 41 and a sedimentation tank 42 arranged in parallel. In the coagulation reaction tank 41, a coagulation reactor is provided. In addition to adding common high-efficiency coagulants PAC and PAM, an ammonia nitrogen remover is also added, and its main component is a chlorine-containing strong oxide to ensure the ammonia nitrogen removal rate. In the sedimentation tank 42, the sludge precipitated after treatment is discharged by a sludge pump and sent to a spiral press for dehydration treatment. This physical technology has significant advantages over the traditional biochemical method: the effluent is stable, less affected by changes in water quality and quantity and the chlorine dosage; high treatment efficiency, short process, less total treatment time, low operating cost, and less chemical dosage.

[0051] (2)The filter tank 50 is provided with a backwashing device to realize the backwashing of sewage.

[0052] (3) Secondary disinfection tank 60

[0053] The secondary disinfection system uses trichloroisocyanuric acid. The available chlorine content of this type of disinfectant is higher than that of sodium hypochlorite, and its performance is more stable, the reaction is rapid, and the action time is short. Research shows that trichloroisocyanuric acid has a good inactivation effect on bacteria, fungi, viruses, etc. in sewage, and can better control the residual chlorine amount. The secondary disinfection tank 60 uses a finished fiberglass reinforced plastic tank with the same specifications as the regulating and lifting tank. Trichloroisocyanuric acid is added to the fiberglass reinforced plastic tank, and the sewage stays in the fiberglass reinforced plastic tank for 3 hours.

[0054] The above equipment is for removing suspended solids and disinfecting sewage. If there is no sewage biological treatment facility downstream of the equipment, a biological disinfectant can be added to the fiberglass reinforced plastic tank to remove organic matter in the water and make the effluent meet the discharge standard.

[0055] (4)Dechlorination tank 70

[0056] A dechlorination dosing metering pump is installed in the dechlorination tank 70. The dosing rates of the disinfection dosing metering pump and the dechlorination dosing metering pump are dynamically adjusted according to the change of the residual chlorine value. The dechlorinating agent added is sodium thiosulfate, and the residual chlorine value meets the effluent requirements.

[0057] 3. Ultrafiltration and tertiary disinfection system

[0058] (1)Ultrafiltration tank 80: Flat ceramic membrane ultrafiltration purification system

[0059] The ultrafiltration tank 80 is a flat ceramic membrane ultrafiltration purification system, which uses 2 sets of integrated boxes. The pore size of the flat membrane of the flat ceramic membrane is 0.1μm, and it is all automatically controlled. The ultrafiltration purification system mainly utilizes the different permeabilities of substance molecules within a certain membrane pore size, with the pressure difference on both sides of the membrane as the driving force, enabling small molecule substances such as water and inorganic salts to pass through the membrane, while macromolecule substances such as suspended solids, colloids, and microorganisms in the water are intercepted, thereby achieving effective removal of pollutants.

[0060] (2)Tertiary disinfection system

[0061] To avoid virus spread and ensure the effluent quality, the effluent from the ultrafiltration tank 80 passes through an ultraviolet disinfection and sterilization device again before being discharged into the hospital sewage treatment station to ensure that the remaining bacteria and viruses in the water can be quickly inactivated. An in-line ultraviolet disinfection and sterilization device 91 is installed in the tertiary disinfection tank 90. The left side of the in-line ultraviolet disinfection and sterilization device 91 is connected to the ultrafiltration tank 80 through a pipeline, and the right side of the in-line ultraviolet disinfection and sterilization device 91 is connected to the discharge port 92 set on the right side of the tertiary disinfection tank 90 through a pipeline. Ultrafiltration and ultraviolet disinfection have little impact on the residual chlorine within a certain range, and at the same time, the residual chlorine content is monitored online.

[0062] In practical applications, all of the above water treatment structures are connected to tail gas collection pipes to hermetically collect the tail gas generated during the operation of the equipment pool and transport it to the tail gas treatment room. The treated tail gas is discharged into the air at a high altitude. The photocatalytic oxidation combined with activated carbon adsorption process is used to treat the waste gas. The activated carbon has strong adsorption capacity, small air resistance, and is convenient for maintenance. The photocatalytic oxidation technology can efficiently decompose oxygen molecules in the air to generate strongly oxidizing substances, achieving the effects of deodorization and disinfection.

[0063] The total hydraulic retention time (HRT) from pre-disinfection to the tertiary disinfection effluent is calculated based on the daily sewage volume and the total volume of the structures. The total HRT can reach 60 h, which meets the requirement in the Design Standard for Emergency Medical Facilities for Pneumonia Caused by Novel Coronavirus Infection that the total HRT from the pre-disinfection tank to the terminal disinfection effluent should not be less than 48 h. The longer HRT can achieve the natural sedimentation effect of the septic tank, improve the disinfection efficiency, reduce the dosage of disinfectants, and reduce the impact of disinfection by-products on the environment. Moreover, even if the coagulation sedimentation and ultrafiltration units malfunction or fail, the natural mortality rate of the novel coronavirus in this sewage treatment system can ensure that the impact on the downstream is minimized.

[0064] This utility model mainly modifies the outdoor septic tank, adding an enhanced disinfection process on the basis of the traditional septic tank for treating solid waste, disinfecting the sewage at the upstream of the outdoor sewage pipeline to reduce the risk of virus transmission. The above process is also a pretreatment for the subsequent centralized sewage treatment, reducing the solid load and the residual chlorine amount. In addition, an integrated intelligent treatment device is adopted, which is convenient for construction and installation, has a high degree of automation, and is convenient for real-time monitoring and maintenance.

[0065] The working principle of this utility model is as follows:

[0066] An integrated treatment device for sewage containing novel coronavirus of the present utility model, when in operation, the sewage containing novel coronavirus first enters the first compartment 21 of the pre-disinfection tank 20. After being blocked and filtered by the grille 22 to remove large particle impurities, branches and leaves and other sundries, it enters the second compartment 23. Since sodium hypochlorite with an available chlorine content of 20 mg / L is added to the second compartment 23 and the pre-disinfection contact time of the sewage with sodium hypochlorite in the second compartment 23 is not less than 1 h, therefore, the sewage is disinfected by sodium hypochlorite here; then, the sewage disinfected by sodium hypochlorite enters the septic tank 30, stays for not less than 36 h, removes the novel coronavirus through the heating device 31, and then reaches the right side of the partition 32, and removes the suspended organic matter in the sewage through sedimentation and anaerobic digestion; afterwards, the sewage enters the coagulation reaction tank 41 of the coagulation sedimentation tank 40, removes ammonia nitrogen through the high-efficiency coagulants PAC, PAM and ammonia nitrogen remover, and then enters the sedimentation tank 45. The sludge sedimented to the bottom of the sewage is discharged by the sludge pump and sent to the screw press for dehydration treatment; afterwards, the sewage enters the filtration tank 50 and the sewage is backwashed by the backwashing device; afterwards, the sewage enters the fiberglass tank secondary disinfection tank 60, and inactivates the bacterial propagules, fungi, viruses, etc. in the sewage through trichloroisocyanuric acid. The sewage stays in the fiberglass tank for 3 h; afterwards, the sewage enters the dechlorination tank 70 with sodium thiosulfate as the dechlorinating agent to make the residual chlorine value of the sewage meet the effluent requirements; afterwards, the sewage enters the ultrafiltration tank 80, and through the flat ceramic membrane ultrafiltration purification system controlled automatically, water and small molecule substances such as inorganic salts pass through the membrane, while the macromolecule substances such as suspended solids, colloids and microorganisms in the sewage are intercepted, so as to effectively remove pollutants; finally, the sewage enters the in-line ultraviolet disinfection and sterilization device 91 arranged in the tertiary disinfection tank 90 through the pipeline for ultraviolet disinfection, and then enters the existing hospital sewage station through the water outlet 92 arranged on the right side of the tertiary disinfection tank 90 through the pipeline, and is discharged into the outdoor sewage pipe network after meeting the treatment standards. Thus, the adoption of the three-stage disinfection plus physical and chemical method ensures the effective removal of infectious germs and viruses in the sewage.

[0067] To sum up, an integrated treatment device for sewage containing novel coronavirus of the present utility model adopts a physical and chemical process combination which is highly efficient, environmentally friendly and has stable effluent quality, ensures that indexes such as SS and COD Cr meet the treatment standards, and has achieved a good inactivation effect on novel coronavirus by using high temperature, ultraviolet light and chlorine-containing disinfectants. The present utility model has the advantages of rapid construction, convenient installation, more stable operation, convenient management, high virus removal efficiency, etc.

[0068] Finally, it should be noted that the above disclosure is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model. The scope of this application is only limited by the appended claims.

Claims

1. An integrated treatment device for sewage containing the novel coronavirus, comprising a base (10), characterized in that: On the base (10), a pre-disinfection tank (20), a septic tank (30), a coagulation sedimentation tank (40), a filtration tank (50), a secondary disinfection tank (60), a dechlorination tank (70), an ultrafiltration tank (80) and a tertiary disinfection tank (90) are fixedly installed in sequence from left to right. The pre-disinfection tank (20), the septic tank (30), the coagulation sedimentation tank (40), the filtration tank (50), the secondary disinfection tank (60), the dechlorination tank (70), the ultrafiltration tank (80) and the tertiary disinfection tank (90) are of comparable height. A section of the pre-disinfection tank (20), the septic tank (30), the coagulation sedimentation tank (40), the filtration tank (50), the secondary disinfection tank (60), the dechlorination tank (70) and the ultrafiltration tank (80) at a certain distance from the top is interconnected; The pre-disinfection tank (20) realizes the pre-disinfection treatment of sewage, ensures the safe operation of the subsequent sewage treatment station, and improves the inactivation effect of novel coronavirus; The septic tank (30) is a sedimentation tank with a heating device (31) for removing suspended organic matter in sewage; The coagulation sedimentation tank (40) ensures the ammonia nitrogen removal rate in sewage and treats the sludge formed after sedimentation; The filtration tank (50) realizes the backwashing of sewage; The secondary disinfection tank (60) inactivates bacteria, fungi, viruses, etc. in sewage; The dechlorination tank (70) ensures that the residual chlorine value after sewage treatment meets the effluent requirements; The ultrafiltration tank (80) ensures that macromolecular substances such as suspended solids, colloids and microorganisms in sewage are intercepted, and effectively removes pollutants; In the tertiary disinfection tank (90), there is a flow-through ultraviolet disinfection and sterilization device (91) that ensures the rapid inactivation of residual bacteria and viruses in water. The left side of the flow-through ultraviolet disinfection and sterilization device (91) is connected to the ultrafiltration tank (80) through a pipeline; the right side of the flow-through ultraviolet disinfection and sterilization device (91) is connected to an outlet (92) arranged on the right side of the tertiary disinfection tank (90) through a pipeline.

2. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: The pre-disinfection tank (20) includes a first compartment (22) and a second compartment (23) arranged in parallel, and also includes a grille (21). The grille (21) is inclined and installed in the first compartment (22). Sodium hypochlorite with an effective chlorine content of 20 mg / L is added to the second compartment (23). The pre-disinfection contact time of sewage with the sodium hypochlorite in the second compartment (23) is not less than 1 h.

3. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: In the middle position of the septic tank (30), there is a partition (32) with a height slightly lower than the liquid level and connected to the bottom. The heating device (31) is installed at the left bottom position of the partition (32). The residence time of sewage in the septic tank is not less than 36 h.

4. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: The coagulation sedimentation tank (40) is divided into a coagulation reaction tank (41) and a sedimentation tank (42) arranged in parallel. Coagulant PAC, PAM and ammonia nitrogen remover are added to the coagulation reaction tank (41). The sedimentation tank (42) is used for sedimenting the sludge after treatment.

5. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: The filtration tank (50) is provided with a backwashing device inside.

6. An integrated treatment device for sewage containing novel coronavirus according to claim 1, wherein: The secondary disinfection tank (60) is a fiberglass tank. Trichloroisocyanuric acid is added to the fiberglass tank. The residence time of sewage in the fiberglass tank is 3 h.

7. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: The dechlorination tank (70) is provided with a dechlorination chemical dosing metering pump, and sodium thiosulfate dechlorination agent is added to the dechlorination tank (70) through the dechlorination chemical dosing metering pump.

8. An integrated treatment device for sewage containing novel coronavirus according to claim 1, characterized in that: The ultrafiltration tank (80) is a fully automatic flat ceramic membrane ultrafiltration purification system. The flat ceramic membrane ultrafiltration purification system adopts two sets of integrated boxes, and the flat membrane aperture of the flat ceramic membrane is 0.1 μm.

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