Instantaneous inactivation system for biological active toxic wastewater

Abstract

The invention belongs to the technical field of biological active toxic wastewater treatment, and particularly relates to a biological active toxic wastewater instantaneous inactivation system which comprises a storage module, a conveying module, a treatment module and a preheating module. The storage module can be used for inputting and storing biological active toxic wastewater; the biological active toxic wastewater stored in the storage module can be conveyed through the conveying module; the treatment module can be used for sterilizing and inactivating the biological active toxic wastewater in the conveying module; the preheating module can be used for preheating the treated biological active toxic wastewater; the storage module comprises a fixing frame; a waste liquid storage tank is fixed at the top of the fixed frame; the sterilized high-temperature waste liquid is used for preheating the to-be-treated waste liquid, so that the heating sterilization process of the to-be-treated biological active toxic waste water is reduced, the sterilized high-temperature waste liquid is cooled, the use of cooling water is reduced, and the energy consumption of the instantaneous inactivation system for the biological active toxic waste water is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of biological active toxic wastewater treatment, in particular to a biological active toxic wastewater instantaneous inactivation system. Background Art

[0002] Biological wastewater comes from biological wastewater in biopharmaceutical plants or drainage from biosafety laboratory experiments, including cultures of pathogenic bacteria, feed liquids and washing water, blood samples and other diagnostic test samples. This waste liquid contains corresponding viruses and bacteria and other highly dangerous infectious microorganisms. If the discharged waste liquid is not strictly disinfected and sterilized, they will pollute water resources, deteriorate the ecological environment, cause the spread of infectious diseases, and seriously endanger human health.

[0003] The treatment methods of biological live toxic wastewater mainly include physical thermal sterilization methods, such as high temperature treatment. High temperature has a significant lethal effect on microorganisms. Most viruses and bacteria can be killed by heating at 90 to 120 degrees Celsius for about 30 minutes. Industrial steam can be directly introduced into the live toxic wastewater to use high temperature to denature or coagulate the bacterial cells and inactivate the enzymes, thereby achieving the purpose of inactivation.

[0004] The existing conventional batch inactivation system occupies a large area and requires cooling water to cool the high-temperature waste liquid generated during sterilization. The utilization rate of thermal energy is low, which increases the energy use of the biological wastewater fire extinguishing system.

[0005] To this end, the present invention provides a system for instantaneously inactivating biological toxic wastewater. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the instantaneous inactivation system of biological active toxic wastewater described in the present invention comprises a storage module, a conveying module, a processing module, and a preheating module;

[0008] The storage module can input and store biological and toxic wastewater; the delivery module can deliver the biological and toxic wastewater stored in the storage module; the treatment module can sterilize and inactivate the biological and toxic wastewater inside the delivery module; the preheating module can preheat the treated biological and toxic wastewater;

[0009] The storage module includes a fixing frame; a waste liquid storage tank is fixed on the top of the fixing frame; an input pipe is installed on the top of the waste liquid storage tank; and a sterilization respirator is installed on the top of the waste liquid storage tank;

[0010] By setting up the input pipe and the waste liquid storage tank, the biological active toxic wastewater to be treated can be stored. By setting up the sterilization respirator, the sterile environment inside the waste liquid storage tank can be guaranteed, and the influence of impurities on the sterilization and inactivation of the biological active toxic wastewater can be reduced. The biological active toxic wastewater can be transported by the conveying module, and the biological active toxic wastewater can be inactivated and sterilized by the treatment module. By setting up the preheating module, the biological active toxic wastewater can be sterilized at high temperature instantaneously. At the same time, the sterilized high-temperature waste liquid can be used to preheat the waste liquid to be treated, reducing the heating and sterilization process of the biological active toxic wastewater to be treated, and the sterilized high-temperature waste liquid can be cooled, reducing the use of cooling water and saving energy use of the biological active toxic wastewater instant inactivation system.

[0011] Preferably, the conveying module includes a single straight pipe; the output end of the waste liquid storage tank is fixedly connected with the single straight pipe; the side wall of the single straight pipe is installed with a magnetic centrifugal pump; through the setting of continuous bending of the single straight pipe, the connection points of the pipeline can be effectively reduced, and the stability of the equipment can be increased. The setting of the magnetic centrifugal pump can be used to transport biological and toxic wastewater, and at the same time, the treatment module is used to kill pathogens and related microorganisms in the biological and toxic wastewater, thereby further enhancing the transportation stability effect of the biological and toxic wastewater fire extinguishing system.

[0012] Preferably, the processing module includes a CIP solution tank; the CIP solution tank is installed on the side wall of the single straight pipe; a valve is installed between the single straight pipe and the CIP solution tank; through the setting of the CIP solution tank and the valve, it is possible to control whether the ciprofloxacin solution is transported to the inside of the single straight pipe, and the biological active toxic wastewater flowing in the single straight pipe due to the magnetic centrifugal pump is sterilized and inactivated; through the setting of the preheating module, the biological active toxic wastewater mixed with the ciprofloxacin solution can be sterilized at ultra-high temperature instantaneously, further enhancing the sterilization treatment effect of the biological active toxic wastewater instantaneous inactivation system.

[0013] Preferably, the preheating module includes a support frame; a preheating tube is installed on the inner wall of the support frame; the preheating tube is connected to the end of a single straight tube; a temperature maintaining chamber is installed on the inner side of the support frame; the temperature maintaining chamber is arranged above the preheating tube; a continuous heating tube is installed on the side wall of the support frame; the continuous heating tube and the preheating tube both adopt multi-layer shell and tube technology; through the arrangement of the preheating tube, the continuous heating tube and the temperature maintaining chamber, heat exchange can be carried out on the wastewater inlet end and the sterilization outlet end to complete the preheating; at the same time, the wastewater that has just entered will cool the treated wastewater; the entire system does not require cooling water, and the wastewater outlet temperature can be reduced to about degrees, saving users 60 to 70 percent energy consumption.

[0014] Preferably, the preheating tube-in-tube and the continuous heating tube are arranged as three-layer sleeves; spiral guide strips are added inside the preheating tube-in-tube and the continuous heating tube; the arrangement of the three-layer sleeves and the spiral guide strips can greatly improve the heat exchange efficiency, and the design of continuous bending of straight tubes adopted by the three-layer tube can increase the stability of the equipment, further enhancing the heat exchange efficiency of the instantaneous inactivation system of biological active toxic wastewater.

[0015] Preferably, two magnetic centrifugal pumps are provided; the two magnetic centrifugal pumps are provided with one as a backup and the other as a use; by providing the magnetic centrifugal pumps with one as a backup and the other as a use, when the magnetic centrifugal pump stops operating unexpectedly, the backup magnetic centrifugal pump can be started so that the entire equipment will not stop operating, thereby ensuring the production stability of the biological live toxic wastewater instantaneous inactivation system.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The instant inactivation system for biological active toxic wastewater described in the present invention can store the biological active toxic wastewater to be treated by setting an input pipe and a waste liquid storage tank, can ensure the sterile environment inside the waste liquid storage tank by setting a sterilization respirator, and reduce the influence of impurities on the sterilization and inactivation of the biological active toxic wastewater, can transport the biological active toxic wastewater by a conveying module, can inactivate and sterilize the biological active toxic wastewater by a processing module, can instantaneously sterilize the biological active toxic wastewater at high temperature by setting a preheating module, and can use the sterilized high-temperature waste liquid to preheat the waste liquid to be treated, thereby reducing the heating and sterilization process of the biological active toxic wastewater to be treated, and can cool the sterilized high-temperature waste liquid, thereby reducing the use of cooling water and saving energy use of the biological active toxic wastewater instant inactivation system.

[0018] 2. The instantaneous inactivation system for biological live toxic wastewater described in the present invention can transport the biological live toxic wastewater through the setting of a magnetic centrifugal pump, and at the same time use a processing module to kill pathogens and related microorganisms in the biological live toxic wastewater, further enhancing the transportation stability effect of the biological live toxic wastewater fire extinguishing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a system schematic diagram of the present invention;

[0021] Figure 2 is a side view of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the continuous heating tube in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the spiral guide strip in the present invention;

[0024] Figure 5 This is a comparison diagram of the present invention and the traditional inactivation system when using 500L of wastewater;

[0025] Figure 6 This is a comparison diagram of the present invention and the traditional inactivation system when using 2000L of wastewater;

[0026] In the figure: 1. Waste liquid storage tank; 11. Input pipe; 12. Sterilization respirator; 13. Fixed frame; 2. Single straight pipe; 21. Magnetic centrifugal pump; 3. CIP solution tank; 4. Preheating tube in tube; 41. Continuous heating tube; 42. Temperature holding chamber; 43. Support frame; 5. Spiral guide strip. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 6 As shown, a biological active toxic wastewater instant inactivation system according to an embodiment of the present invention comprises a storage module, a conveying module, a processing module, and a preheating module;

[0029] The storage module can input and store biological and toxic wastewater; the delivery module can deliver the biological and toxic wastewater stored in the storage module; the treatment module can sterilize and inactivate the biological and toxic wastewater inside the delivery module; the preheating module can preheat the treated biological and toxic wastewater;

[0030] The storage module includes a fixing frame 13; a waste liquid storage tank 1 is fixed on the top of the fixing frame 13; an input pipe 11 is installed on the top of the waste liquid storage tank 1; and a sterilization respirator 12 is installed on the top of the waste liquid storage tank 1;

[0031] During operation, the biological live toxic wastewater can be transported to the waste liquid storage tank 1 for storage through the input pipe 11, and the impurities in the air can be removed through the sterilization respirator 12 to ensure the sterile environment inside the waste liquid storage tank 1. The biological live toxic wastewater can be transported through the transport module, and the biological live toxic wastewater can be disinfected and inactivated through the treatment module. At the same time, the preheating module adopts ultra-high temperature instantaneous sterilization, and the excess heat energy of the sterilized high-temperature waste liquid can be used to preheat the waste liquid to be treated through the heat exchanger, and the sterilized high-temperature waste liquid can be cooled at the same time. The modular design of the system can realize unattended operation, and the entire system can realize full automatic operation. In the process of biological wastewater inactivation, temperature and time are key process parameters, and the F0 value must be clarified first. The continuous biological live toxic wastewater inactivation system adopts a wet heat sterilization method that maintains disinfection at high temperature. In wet heat sterilization, thermophilic stearobacillus is used as a microbial indicator bacteria, and the F0 value is the standard sterilization time, that is, the equivalent sterilization time at 121°C.

[0032] F0 value 20 = 121°C for 20 minutes;

[0033] F0 value 25 = 121°C 25 minutes = 135°C 1 minute = 141°C 0.25 minutes, i.e. 15 seconds;

[0034] By setting the input pipe 11 and the waste liquid storage tank 1, the biological active toxic wastewater to be treated can be stored. By setting the sterilization respirator 12, the sterile environment inside the waste liquid storage tank 1 can be ensured, and the influence of impurities on the sterilization and inactivation of the biological active toxic wastewater can be reduced. The biological active toxic wastewater can be transported by the conveying module, and the biological active toxic wastewater can be inactivated and sterilized by the treatment module. By setting the preheating module, the biological active toxic wastewater can be instantaneously sterilized at high temperature. At the same time, the sterilized high-temperature waste liquid can be used to preheat the waste liquid to be treated, reducing the heating and sterilization process of the biological active toxic wastewater to be treated, and the sterilized high-temperature waste liquid can be cooled, reducing the use of cooling water and saving energy use of the biological active toxic wastewater instant inactivation system.

[0035] like Figure 1 to Figure 2 As shown, Figure 3As shown, the conveying module includes a single straight pipe 2; the output end of the waste liquid storage tank 1 is fixedly connected with the single straight pipe 2; the side wall of the single straight pipe 2 is installed with a magnetic centrifugal pump 21; when working, the single straight pipe 2 adopts a completely welded continuous bending design, which can effectively reduce the connection points of the pipeline, and the magnetic centrifugal pump 21 can be used to transport the biological and toxic wastewater inside the single straight pipe 2, and the treatment module can be used to kill the pathogens in the biological and toxic wastewater; the single straight pipe 2 is continuously bent and formed, which can effectively reduce the connection points of the pipeline and increase the stability of the equipment. The magnetic centrifugal pump 21 can be used to transport the biological and toxic wastewater, and the treatment module can be used to kill the pathogens and related microorganisms in the biological and toxic wastewater, thereby further enhancing the transportation stability effect of the biological and toxic wastewater fire extinguishing system.

[0036] like Figure 1 As shown, the processing module includes a CIP solution tank 3; the CIP solution tank 3 is installed on the side wall of the single straight pipe 2; a valve is installed between the single straight pipe 2 and the CIP solution tank 3; during operation, the valve can be used to control whether the ciprofloxacin solution in the CIP solution tank 3 enters the single straight pipe 2, and the biological active toxic wastewater flowing in the single straight pipe 2 is sterilized and inactivated. At the same time, the ciprofloxacin solution can be used in combination with other disinfectants, and the biological active toxic wastewater mixed with ciprofloxacin can be ultra-high temperature inactivated and sterilized through the preheating module; through the setting of the CIP solution tank 3 and the valve, it can be controlled whether the ciprofloxacin solution is transported to the single straight pipe 2, and the biological active toxic wastewater flowing in the single straight pipe 2 due to the magnetic centrifugal pump 21 is sterilized and inactivated. Through the setting of the preheating module, the biological active toxic wastewater mixed with the ciprofloxacin solution can be ultra-high temperature instantaneously sterilized, further enhancing the sterilization treatment effect of the biological active toxic wastewater instantaneous inactivation system.

[0037] like Figures 1 to 3As shown, the preheating module includes a support frame 43; a preheating tube-in-tube 4 is installed on the inner wall of the support frame 43; the preheating tube-in-tube 4 is connected to the end of the single straight tube 2; a temperature maintaining chamber 42 is installed on the inner side of the support frame 43; the temperature maintaining chamber 42 is arranged above the preheating tube-in-tube 4; a continuous heating tube 41 is installed on the side wall of the support frame 43; the continuous heating tube 41 and the preheating tube-in-tube 4 both adopt multi-layer shell and tube technology; when working, the preheating end outlet can be maintained above 120°C when the steam is input externally through the continuous heating tube 41, and the temperature can be kept warm through the temperature maintaining chamber 42 until the temperature stays for a sufficient time to meet the corresponding P0 value requirements. After the wastewater fire extinguishing treatment is completed, it enters the preheating exchange area, and the treated wastewater above 145°C at the outlet of the insulation section will go to the heat exchange section Cooling, after heat exchange, the treated wastewater will be raised to 120℃ and will go to the heating section. The wastewater coming out of the insulation section will undergo heat exchange with the wastewater to be treated, which can raise the wastewater to 120℃ and use the low-temperature wastewater to cool itself down, and the temperature of the wastewater coming out of the insulation section can be reduced to below 40℃. At the same time, the equipment is equipped with multi-point temperature detection, including water inlet temperature, heating front end temperature, terminal temperature after heating, terminal sterilization maintenance temperature, and water outlet temperature; through the setting of the preheating tube 4, the continuous heating tube 41 and the temperature maintaining chamber 42, the wastewater inlet end and the sterilization outlet end can be heat exchanged to complete the preheating; at the same time, the wastewater just entering will cool the treated wastewater; the entire system does not require cooling water, and the wastewater outlet temperature can be reduced to about 40 degrees, saving users 60% to 70% energy consumption.

[0038] like Figures 1 to 4 As shown, the preheating tube-in-tube 4 and the continuous heating tube 41 are set as three-layer sleeves; spiral guide strips 5 are added inside the preheating tube-in-tube 4 and the continuous heating tube 41; when working, the preheating tube-in-tube 4 and the continuous heating tube 41 adopt three-layer sleeves, and the spiral guide strips 5 added inside are used to greatly improve the heat exchange efficiency. In addition, the three-layer tube is formed by continuous bending of straight tubes, which can reduce the connection points; the setting of three-layer sleeves and spiral guide strips 5 can greatly improve the heat exchange efficiency, and the design of continuous bending of straight tubes adopted by the three-layer tube can increase the stability of the equipment, further enhancing the heat exchange efficiency of the instantaneous inactivation system of biological active toxic wastewater.

[0039] like Figure 1 As shown, two magnetic centrifugal pumps 21 are provided; the two magnetic centrifugal pumps 21 are one for backup and one for use; when working, the whole equipment can be operated continuously by setting the magnetic centrifugal pumps 21 as one for backup and one for use; by setting the magnetic centrifugal pumps 21 as one for backup and one for use, when the magnetic centrifugal pump 21 stops working unexpectedly, the backup magnetic centrifugal pump 21 can be started so that the whole equipment will not stop running, thereby ensuring the production stability of the biological active toxic wastewater instantaneous inactivation system.

[0040] Working principle: during operation, the biological live toxic wastewater can be transported to the waste liquid storage tank 1 for storage through the input pipe 11, and the impurities in the air can be removed through the sterilization respirator 12 to ensure the sterile environment inside the waste liquid storage tank 1. The biological live toxic wastewater can be transported through the transport module, and the biological live toxic wastewater can be disinfected and inactivated through the treatment module. At the same time, the preheating module adopts ultra-high temperature instantaneous sterilization, and the excess heat energy of the sterilized high-temperature waste liquid can be used to preheat the waste liquid to be treated through the heat exchanger, and the sterilized high-temperature waste liquid can be cooled at the same time. The modular design of the system can realize unattended operation, and the whole system can realize full automatic operation. In the process of biological wastewater inactivation, temperature and time are key process parameters, and the F0 value must be clarified first. The continuous biological live toxic wastewater inactivation system adopts a wet heat sterilization method that maintains disinfection at high temperature. In wet heat sterilization, thermophilic stearobacillus is used as a microbial indicator, and the F0 value is the standard sterilization time, that is, the equivalent sterilization time at 121°C.

[0041] F0 value 20 = 121°C for 20 minutes;

[0042] F0 value 25 = 121°C 25 minutes = 135°C 1 minute = 141°C 0.25 minutes, i.e. 15 seconds;

[0043] The single straight pipe 2 adopts a completely welded continuous bending forming design, which can effectively reduce the connection points of the pipeline. The biological active toxic wastewater inside the single straight pipe 2 can be transported by the magnetic centrifugal pump 21, and the pathogens in the biological active toxic wastewater can be killed by the processing module. The valve can control whether the ciprofloxacin solution in the CIP solution tank 3 enters the single straight pipe 2, and the biological active toxic wastewater flowing in the single straight pipe 2 is sterilized and inactivated. At the same time, the ciprofloxacin solution can be used in combination with other disinfectants. The biological active toxic wastewater mixed with ciprofloxacin can be ultra-high temperature inactivated and sterilized by the preheating module. The preheating end outlet can be kept above 120° C. when the continuous heating pipe 41 is connected to the input steam, and the temperature can be kept warm by the temperature holding chamber 42 to stay for a sufficient time to meet the corresponding P0 value requirements, and the wastewater fire extinguishing treatment is completed. After entering the preheat exchange area, the treated wastewater with a temperature above 145°C at the outlet of the insulation section will go to the heat exchange section for cooling. After heat exchange, the treated wastewater will be raised to 120°C and will go to the heating section. The wastewater coming out of the insulation section will exchange heat with the wastewater to be treated, which can raise the wastewater to 120°C and use the low-temperature wastewater to cool itself down, so that the temperature of the wastewater coming out of the insulation section can be reduced to below 40°C. At the same time, the equipment is equipped with multi-point temperature detection, including water inlet temperature, heating front end temperature, terminal temperature after heating, terminal sterilization maintenance temperature, and water outlet temperature. The preheating tube 4 and the continuous heating tube 41 use three-layer casing, and the spiral guide strip 5 added inside can greatly improve the heat exchange efficiency. In addition, the three-layer tube is formed by continuous bending of straight tubes, which can reduce the connection points. The magnetic centrifugal pump 21 is set in a backup mode to enable the entire equipment to operate continuously.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A system for instant inactivation of biological live toxic wastewater, characterized by: It includes a storage module, a conveying module, a processing module, and a preheating module; The storage module can input and store biological and toxic wastewater; the delivery module can deliver the biological and toxic wastewater stored in the storage module; the treatment module can sterilize and inactivate the biological and toxic wastewater inside the delivery module; the preheating module can preheat the treated biological and toxic wastewater; The storage module comprises a fixing frame (13); a waste liquid storage tank (1) is fixed on the top of the fixing frame (13); an input pipe (11) is installed on the top of the waste liquid storage tank (1); and a sterilization respirator (12) is installed on the top of the waste liquid storage tank (1).

2. The system for instant inactivation of biological wastewater according to claim 1, characterized in that: The conveying module comprises a single straight pipe (2); the output end of the waste liquid storage tank (1) is fixedly connected with the single straight pipe (2); and a magnetic centrifugal pump (21) is installed on the side wall of the single straight pipe (2).

3. A biological live poison wastewater instant inactivation system according to claim 2, characterized in that: The processing module comprises a CIP solution tank (3); the CIP solution tank (3) is installed on the side wall of the single straight pipe (2); and a valve is installed between the single straight pipe (2) and the CIP solution tank (3).

4. The system for instant inactivation of biological wastewater according to claim 1, characterized in that: The preheating module comprises a support frame (43); a preheating tube (4) is installed on the inner wall of the support frame (43); the preheating tube (4) is connected to the end of the single straight tube (2); a temperature maintaining chamber (42) is installed on the inner side of the support frame (43); the temperature maintaining chamber (42) is arranged above the preheating tube (4); a continuous heating tube (41) is installed on the side wall of the support frame (43); the continuous heating tube (41) and the preheating tube (4) both adopt multi-layer shell-and-tube technology.

5. The system for instant inactivation of biological wastewater according to claim 4, characterized in that: The preheating tube-in-tube (4) and the continuous heating tube (41) are configured as three-layer casings; spiral guide strips (5) are added inside the preheating tube-in-tube (4) and the continuous heating tube (41).

6. The system for instant inactivation of biological wastewater according to claim 2, characterized in that: Two magnetic centrifugal pumps (21) are provided; the two magnetic centrifugal pumps (21) are used as one standby and the other as backup.

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