Wastewater inactivation system

Abstract

The utility model discloses a wastewater inactivation system which comprises a water supply pipe, a wastewater pipe, an inactivation tank, an alkali liquor tank, an acid liquor tank and a drainage pipe, the water supply pipe is provided with more than three water supply branches; the water supply branch is respectively connected with the inactivation tank, the alkali liquor tank and the acid liquor tank; the alkali liquor tank is connected with the inactivation tank through an alkali liquor pipe; the acid liquor tank is connected with the inactivation tank through an acid liquor pipe; at least two inactivation tanks are arranged; the inactivation tanks are connected through a circulating pipeline; and the drain pipe is connected with the circulating pipeline. The utility model has the beneficial effects that when a certain inactivation tank breaks down, waste water in the inactivation tank can be quickly transferred to other inactivation tanks through the circulating pipeline so as to continue inactivation, and meanwhile, the broken-down inactivation tank can be maintained; a plurality of tank bodies are sequentially used, so that the inactivation efficiency is improved, and the wastewater treatment time is shortened; liquid storage tanks are reduced, and waste liquid operation times are reduced; a stirring device and a pump body assembly are arranged to improve the mixing efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically relates to a wastewater inactivation system. Background Art

[0002] At present, a large amount of active biological wastewater is generated during experiments and production processes in biopharmaceutical companies, laboratories or research institutes. These biological wastewaters contain a large number of living bacteria or viruses, which are very harmful. They need to be disinfected and sterilized to kill the pathogens before they can be discharged into the next-level sewage treatment system.

[0003] The traditional method for treating biological wastewater is physical sterilization. A biological wastewater inactivation system is formed by using a temporary storage tank and at least two inactivation tanks, and equipping them with corresponding pipes, water pumps and valves. The basic principle is: steam is directly introduced into the active biological wastewater, and high temperature is used to denature the bacteria or inactivate the coagulase, thereby killing the bacteria. At high temperatures, the chemical bonds in the DNA and RNA of the virus absorb heat, causing the bonds to break, thereby making the virus inactive.

[0004] However, the existing biological wastewater inactivation system has the following disadvantages:

[0005] When a certain inactivation tank fails, it is difficult to quickly transfer the wastewater inside it to continue inactivation and repair the failed inactivation tank.

[0006] The utility model aims at solving the above problems and provides a wastewater inactivation system. Utility Model Content

[0007] In order to overcome the problems raised in the background technology, the utility model provides a wastewater inactivation system.

[0008] A wastewater inactivation system comprises a water supply pipe, a wastewater pipe, an inactivation tank, an alkali liquid tank, an acid liquid tank and a drainage pipe; the water supply pipe is provided with more than three water supply branches; the water supply branches are respectively connected to the inactivation tank, the alkali liquid tank and the acid liquid tank; the alkali liquid tank is connected to the inactivation tank through an alkali liquid pipe; the acid liquid tank is connected to the inactivation tank through an acid liquid pipe; at least two inactivation tanks are provided; the inactivation tanks are connected through a circulation pipeline; and the drainage pipe is connected to the circulation pipeline.

[0009] Furthermore, a pump assembly is provided inside the circulation pipeline.

[0010] Furthermore, a drain valve is provided between the drain pipe and the circulation pipeline.

[0011] Furthermore, a conductivity meter is provided on the side wall of the inactivation tank; one end of the conductivity meter is inserted into the interior of the inactivation tank.

[0012] Furthermore, a gas respirator is provided on the top of the inactivation tank.

[0013] Furthermore, a stirring device is provided inside the inactivation tank.

[0014] Furthermore, the wastewater pipe has more than two wastewater branches; the wastewater branches are respectively connected to different inactivation tanks.

[0015] Furthermore, a wastewater valve is provided inside the wastewater branch.

[0016] Furthermore, a first metering pump is provided inside the alkali solution pipe.

[0017] Furthermore, a second metering pump is provided inside the acid liquid pipe.

[0018] Beneficial effects of the utility model:

[0019] 1. When a certain inactivation tank fails, the wastewater inside it can be quickly transferred to other inactivation tanks through the circulation pipeline to continue the inactivation, and the failed inactivation tank can be repaired at the same time.

[0020] 2. Use multiple tanks in sequence to improve inactivation efficiency and shorten the time required for wastewater treatment.

[0021] 3. No liquid storage tank is set up to reduce the secondary transportation of waste liquid;

[0022] 4. Equipped with stirring device and pump assembly to improve mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a wastewater inactivation system for realizing the utility model;

[0024] In the figure, 1. water supply pipe; 2. wastewater pipe; 3. inactivation tank; 4. circulation pipeline; 5. alkali liquid tank; 6. acid liquid tank; 7. pump body assembly; 8. drain pipe; 9. stirring device; 10. pH meter; 31. conductivity meter; 81. drain valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] like Figure 1 A wastewater inactivation system shown includes a water supply pipe 1, a wastewater pipe 2, an inactivation tank 3, an alkali tank 5, an acid tank 6 and a drainage pipe 8; the water supply pipe 1 has multiple water supply branches; the water supply branches are respectively connected to the inactivation tank 3, the alkali tank 5 and the acid tank 6; the alkali tank 5 is connected to the inactivation tank 3 through an alkali pipe; the acid tank 6 is connected to the inactivation tank 3 through an acid pipe; multiple inactivation tanks 3 are provided; the inactivation tanks 3 are connected through a circulation pipeline 4; and the drainage pipe 8 is connected to the circulation pipeline 4. The circulation inactivation between different inactivation tanks 3 reduces the storage and turnover equipment such as collection tanks and turnover pumps compared with the general system, uses highly oxidizing substances to degrade highly active substances, and replaces the general inactivation equipment with a steam inactivation process to reduce energy consumption.

[0029] When in use, the waste water is injected into the inactivation tank 3, and then the alkali liquid stored in the alkali liquid tank 5 is injected into the inactivation tank 3 through the alkali liquid pipe, and the alkali liquid is circulated and refluxed through the pump body assembly 7 and the stirring device 9 to ensure that the alkali liquid in the inactivation tank 3 meets the needs. After the conductivity meter 31 and the pH meter 10 determine that the inactivation conditions are met, the timing of 12-24 hours is started. After the waste water is inactivated, the acid liquid stored in the acid liquid tank 6 is injected into the inactivation tank 3 through the acid liquid pipe, and the waste water in the tank is neutralized through the pump body assembly 7 and the stirring device 9. After the pH meter 10 measures that the waste water is neutral, the waste water is discharged through the drain pipe 8.

[0030] Specifically, one end of the pH meter 10 is inserted into the interior of the inactivation tank 3 , and the other end is exposed outside the inactivation tank 3 , so as to read the reading of the pH meter 10 and observe the pH value in the inactivation tank 3 in real time.

[0031] When a certain inactivation tank 3 fails, the waste water inside it can be quickly transferred to other inactivation tanks 3 through the circulation pipeline 4 to continue the inactivation, and the failed inactivation tank 3 can be repaired at the same time.

[0032] Specifically, a pump assembly 7 is provided inside the circulation pipeline 4, and the liquid inside the inactivation tank 3 can be discharged through the pump assembly 7. When the inactivation tank 3 fails, the waste water inside can be quickly transferred to other inactivation tanks 3 through the circulation pipeline 4 through the pump assembly 7. When the inactivation tank 3 is working normally, after the waste water treatment is completed, the pump assembly 7 sucks the treated waste water out of the inactivation tank 3, and injects it into the drain pipe 8 through the circulation pipeline 4 to discharge the treated waste water.

[0033] Preferably, the wastewater pipe 2 has more than two wastewater branches, and the wastewater branches are respectively connected to different inactivation tanks 3. Wastewater can be injected into different inactivation tanks 3 through the wastewater branches.

[0034] In some embodiments of the present application, a drain valve 81 is provided between the drain pipe 8 and the circulation pipeline 4. When the inactivation tank 3 is operating normally, after the wastewater treatment is completed, the pump assembly 7 sucks the treated wastewater out of the inactivation tank 3, and the drain valve 81 opens, so that the wastewater passing through the circulation pipeline 4 can enter the drain pipe 8, and the treated wastewater is discharged.

[0035] In the illustrative embodiment of the present application, a conductivity meter 31 is provided on the side wall of the inactivation tank 3; one end of the conductivity meter 31 is inserted into the interior of the inactivation tank 3. The wastewater to be inactivated enters the inactivation tank 3 through the wastewater pipe 2. When the set liquid level is reached, a high-concentration alkali solution or other highly oxidizing substances (such as sodium hypochlorite solution) is added to the inactivation tank 3 through a metering pump, and the waste liquid is mixed by a pump body assembly 7 and a stirring device 9 to circulate and flow and mix the waste liquid. The conductivity is used to determine whether the concentration of the inactivation solution reaches the preset concentration. After the concentration of the inactivation liquid reaches the standard, inactivation begins. When the inactivation tank 3 is inactivating, other inactivation tanks 3 are started in sequence to start collecting wastewater and inactivation.

[0036] like Figure 1 As shown, three inactivation tanks 3 are used in this scheme. For the convenience of distinction, they are named as the first tank body, the second tank body and the third tank body. When in use, wastewater and alkali solution are first injected into the first tank body in sequence, and the conductivity is used to determine whether the concentration of the inactivation solution reaches the preset concentration. After the concentration of the inactivation solution reaches the standard, inactivation begins and the time is recorded. When the first tank body begins to inactivate, wastewater and alkali solution are injected into the second tank body in sequence to start inactivation. Then the third tank body is used to inactivate the wastewater. The three tank bodies are used in sequence to improve the inactivation efficiency and shorten the time required to treat the wastewater.

[0037] Further, the inside of the circulation pipeline 4 is provided with a first circulation valve, a second circulation valve, a third circulation valve, a fourth circulation valve, a fifth circulation valve, a sixth circulation valve, and a seventh circulation valve. The first circulation valve is arranged at the bottom of the first tank body. The second circulation valve is arranged at the bottom of the second tank body. The third circulation valve is arranged at the bottom of the third tank body. The pump body assembly 7 is located between the third circulation valve and the drain pipe 8. The drain pipe 8 is arranged between the pump body assembly 7 and the fourth circulation valve. The fifth circulation valve is arranged at the top of the first tank body. The sixth circulation valve is arranged at the top of the second tank body. The seventh circulation valve is arranged at the top of the third tank body.

[0038] When the first tank body fails, the first circulation valve and the fourth circulation valve are opened, the drain valve 81 is closed, and the sixth circulation valve or the seventh circulation valve is opened to inject the waste water inside the first tank body into the second tank body or the third tank body.

[0039] Preferably, the inactivation process is controlled by an automatic control system to transfer the wastewater or unqualified inactivated wastewater to any other inactivation tank 3 to ensure that the wastewater is discharged after inactivation.

[0040] In some examples of the present application, a gas respirator is provided on the top of the inactivation tank 3. The function of the gas respirator is that when wastewater is added to the inactivation tank 3 or the gas generated in the tank during the inactivation process, the harmful elements in the gas are adsorbed by the gas respirator attached to the tank body and then discharged into the air.

[0041] Preferably, the gas respirator is provided with a heating device to prevent condensed water from blocking the respirator.

[0042] In the specific example of the present application, a stirring device 9 is provided inside the inactivation tank 3. The function of the stirring device 9 is to stir the wastewater and the alkali solution during the inactivation process so that the alkali solution and the wastewater are fully integrated to improve the inactivation efficiency of the wastewater.

[0043] Specifically, wastewater valves are provided inside the wastewater branch, and wastewater can be injected into different inactivation tanks 3 by opening different wastewater valves.

[0044] A plurality of alkali liquid branches are arranged at one end of the alkali liquid pipe away from the alkali liquid tank 5; the alkali liquid branches are respectively connected to different inactivation tanks 3. Alkali liquid valves are arranged inside the alkali liquid branches, and alkali liquid can be injected into different inactivation tanks 3 by opening different alkali liquid valves.

[0045] A first metering pump is provided inside the alkali liquid pipe. The alkali liquid in the alkali liquid tank 5 can be sucked out by the first metering pump and driven to enter the inactivation tank 3 through the alkali liquid pipe, and the amount of the alkali liquid entering the inactivation tank 3 is measured at the same time.

[0046] The end of the acid pipe away from the acid tank 6 is provided with a plurality of acid branches, which are respectively connected to different inactivation tanks 3. Acid valves are provided inside the acid branches, and acid can be injected into different inactivation tanks 3 by opening different acid valves.

[0047] The inside of the acid pipe is provided with a second metering pump. By the second metering pump, the acid in the acid tank 6 can be sucked out and the acid is driven to enter the inactivation tank 3 through the acid pipe, and the quantity of the acid in the inactivation tank 3 is metered simultaneously.

[0048] Inactivation process:

[0049] The wastewater to be inactivated is collected in the inactivation tank 3. When the set liquid level is reached, the high-concentration alkali solution is added to the interior of the first tank body through the first metering pump, and the pump body component 7 is refluxed and the stirring device 9 is used to accelerate the mixing. The conductivity is used to determine whether the concentration of the inactivation solution reaches the preset concentration. After the concentration of the inactivation solution reaches the standard, the inactivation time is started. When the first tank body is inactivated, the second tank body and the third tank body are used in turn.

[0050] After the inactivation time reaches the set time, the liquid in the acidic dosing barrel is added to the inactivation tank 3 through the second metering pump, and the pump body assembly 7 refluxes and the stirring device 9 accelerates the mixing to neutralize the alkaline inactivation wastewater, and then the drain valve 81 is opened, and the pump body assembly 7 pumps the inactivation wastewater inside the inactivation tank 3 into the drain pipe 8.

[0051] Water and alkaline solution are injected into the inactivation tank 3 to clean the inactivation tank 3 according to the set program.

[0052] In the description of this specification, the description with reference to the terms "embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", "some examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The embodiments described in this application are only part of the embodiments of the utility model, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A wastewater inactivation system, comprising a water supply pipe, a wastewater pipe, an inactivation tank, an alkali liquid tank, an acid liquid tank and a drain pipe, characterized in that: The water supply pipe is provided with more than three water supply branches; the water supply branches are respectively connected to the inactivation tank, the alkali liquid tank and the acid liquid tank; the alkali liquid tank is connected to the inactivation tank through an alkali liquid pipe; the acid liquid tank is connected to the inactivation tank through an acid liquid pipe; at least two inactivation tanks are provided; the inactivation tanks are connected through a circulation pipeline; the drainage pipe is connected to the circulation pipeline.

2. A wastewater inactivation system according to claim 1, characterized in that: A pump assembly is arranged inside the circulation pipeline.

3. A wastewater inactivation system according to claim 2, characterized in that: A drainage valve is arranged between the drainage pipe and the circulation pipeline.

4. A wastewater inactivation system according to claim 3, characterized in that: A conductivity meter is arranged on the side wall of the inactivation tank; one end of the conductivity meter is inserted into the interior of the inactivation tank.

5. A wastewater inactivation system according to claim 4, characterized in that: A gas respirator is arranged on the top of the inactivation tank.

6. A wastewater inactivation system according to claim 4, characterized in that: A stirring device is arranged inside the inactivation tank.

7. A wastewater inactivation system according to claim 1, characterized in that: The wastewater pipe is provided with more than two wastewater branches; the wastewater branches are respectively connected to different inactivation tanks.

8. A wastewater inactivation system according to claim 7, characterized in that: A wastewater valve is arranged inside the wastewater branch.

9. A wastewater inactivation system according to any one of claims 1 to 8, characterized in that: A first metering pump is arranged inside the alkali solution pipe.

10. A wastewater inactivation system according to claim 9, characterized in that: A second metering pump is arranged inside the acid liquid pipe.

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