CN218146264U - Special waste water treatment equipment of medical institution - Google Patents
Special waste water treatment equipment of medical institution Download PDFInfo
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- CN218146264U CN218146264U CN202222022150.5U CN202222022150U CN218146264U CN 218146264 U CN218146264 U CN 218146264U CN 202222022150 U CN202222022150 U CN 202222022150U CN 218146264 U CN218146264 U CN 218146264U
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Abstract
The utility model discloses a special wastewater treatment equipment of medical institution, including denitration unit in advance, anaerobism unit, oxygen deficiency unit, good oxygen unit, precipitation unit, aerosol collection unit and UV light catalytic oxidation device, the mud-water separation back supernatant of precipitation unit discharges through ultraviolet ray disinfection device, and the backward flow liquid and the mud in the precipitation unit pass through the backward flow unit and are connected with denitration unit in advance and anaerobism unit respectively so that sewage denitrogenation and dephosphorization, the utility model discloses a modular design, compact structure, area is little, collects units such as biochemical treatment, deposits, disinfection and handles in an organic whole; the gravity flow stirring technology and the air lift backflow technology are adopted, no running part is arranged in the box body, the performance is reliable, and the running cost is low; the system has high automation degree, can realize remote control, is unattended, and has zero contact between pipe transportation personnel and sewage; can realize the omnibearing disinfection of aerosol generated in the effluent and sewage treatment process and block the diffusion of infectious viruses.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to special waste water treatment equipment of medical institution.
Background
Medical wastewater is mainly sewage discharged from a diagnosis and treatment room, a laboratory, a ward, a laundry, an X-ray photography room, an operating room and the like of a hospital, and the source and the components of the sewage are very complex. The sewage components include various medicines, disinfectants, diagnostic agents, detergents and the like. The method is characterized in that the water volume change is large, the concentration of refractory toxic organic matters is high, nitrogen and phosphorus substances exceed the standard, toxic and harmful substances such as various viruses, bacteria, parasitic ova, heavy metals, radioactive elements and the like are contained to different degrees, and the method has several characteristics of space pollution, acute infection and latent infection. If medical wastewater containing pathogenic microorganisms is directly discharged into urban sewers without being subjected to harmless treatment such as disinfection and inactivation, the pollution of water and soil is often caused, various diseases are seriously caused, or the outbreak of water-mediated infectious diseases is caused, so that the medical wastewater needs to be treated and discharged after reaching the standard.
The main transmission routes of the acute respiratory infectious diseases which are epidemic worldwide recently are contact transmission, spray transmission and aerosol transmission.
The basic methods of traditional medical wastewater treatment are of three types: the physical method, the chemical method and the microbiological method are adopted by many hospitals at present, and the physical method mainly aims at the operations of precipitation, separation, effluent disinfection and the like of medical wastewater, so that the problem that nitrogen and phosphorus substances in effluent exceed the standard is difficult to solve. The existing medical wastewater treatment process only disinfects effluent and discharged sludge, but harmful gas and aerosol generated in the sewage treatment process are not treated in a targeted manner, so that various disease sources such as infectious germs, viruses and the like cannot be effectively eliminated, and secondary pollution is easily caused.
Therefore, it is a problem worth studying to provide a wastewater treatment facility dedicated for medical institutions that can thoroughly eliminate various pathogens such as infectious germs and viruses.
Disclosure of Invention
The utility model aims at providing a special wastewater treatment equipment of medical institution which can thoroughly eliminate various pathogens such as infectious germs and viruses.
The purpose of the utility model is realized like this:
the utility model provides a special waste water treatment equipment of medical institution, include the denitration unit in advance with first water piping connection, with the anaerobic unit who advances water piping connection with the second in advance denitration unit connection, the oxygen deficiency unit of being connected with the anaerobic unit, the good oxygen unit of being connected with the oxygen deficiency unit, be located the precipitation unit between the good oxygen unit, with the oxygen deficiency unit, the anaerobic unit, good oxygen unit and precipitation unit are connected and with inside gas exhaust aerosol collection unit, the UV photocatalytic oxidation device of being connected with aerosol collection unit, the mud-water separation back supernatant of precipitation unit discharges through ultraviolet ray degassing unit, reflux and mud in the precipitation unit pass through the backward flow unit and are connected so that sewage denitrogenation and dephosphorization with anaerobic unit respectively with denitration unit in advance.
The pre-denitration unit comprises a pre-denitration tank, and the first water inlet pipe is connected with the pre-denitration tank and discharges sewage into the pre-denitration tank.
The anaerobic unit comprises an anaerobic tank, a second water inlet pipe is connected with the anaerobic tank, and a liquid outlet of the pre-denitration tank is connected with the anaerobic tank.
The oxygen deficiency unit comprises an oxygen deficiency tank, and an overflow weir of the oxygen deficiency unit is connected with a liquid inlet of the oxygen deficiency tank.
The aerobic unit comprises a first aerobic tank and a second aerobic tank, and a liquid inlet of the first aerobic tank is connected with a liquid outlet of the anoxic unit.
The sedimentation unit comprises a first sedimentation tank connected with the first aerobic tank and a second sedimentation tank connected with the outlet of the second aerobic tank, the liquid outlet of the first sedimentation tank is connected with the second aerobic tank, and the liquid outlet of the second sedimentation tank is connected with an ultraviolet disinfection (or chemical dosing combined disinfection) device and discharges the clean water after disinfection.
The aerosol collecting unit comprises a gas collecting main pipe and a gas collecting branch pipe connected with the anoxic unit, the anaerobic unit, the aerobic unit and the precipitation unit, the gas collecting main pipe is connected with the UV photocatalytic oxidation device, and through a fan arranged in the UV photocatalytic oxidation device, the aerosol containing peculiar smell gas and viruses generated in the sewage treatment process is led into the UV photocatalytic oxidation device to be disinfected and then discharged.
And aerators are arranged in the first aerobic tank and the second aerobic tank, and an aerator air supply pipe and an air lift backflow system air supply pipe are connected with an aeration fan to provide power for the aerobic units and the backflow system.
The reflux unit comprises a sludge reflux pipe with two ends respectively connected with the second sedimentation tank and the pre-denitrification tank, and a nitrifying liquid reflux pipe with two ends respectively connected with the second sedimentation tank and the anaerobic tank.
And a sludge discharge pipe is arranged in each of the first sedimentation tank and the second sedimentation tank.
Has the positive and beneficial effects that: the utility model has the advantages of modular design, compact structure, small occupied area, and integration of biochemical treatment, sedimentation, disinfection and other unit treatments; the gravity flow stirring technology and the air lift backflow technology are adopted in the integrated device, no running part is arranged in the box body, the performance is reliable, and the running cost is low; the system has high automation degree, can realize remote control, is unattended, and has zero contact between pipe transportation personnel and sewage; can realize the omnibearing disinfection of aerosol generated in the effluent and sewage treatment process and block the diffusion of infectious viruses, and is particularly suitable for sewage treatment in places such as infectious disease isolation hospitals, infectious disease square warehouse hospitals, epidemic situation prevention and control medical reservation points and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, the following steps are shown: the device comprises a pre-denitration tank 1, an anaerobic tank 2, an anoxic tank 3, a first aerobic tank 4, a first sedimentation tank 5, a second aerobic tank 6, a second sedimentation tank 7, a fan room 8, a first water inlet pipe 9, a second water inlet pipe 10, a sludge return pipe 11, a nitrifying liquid return pipe 12, an aerosol collecting main pipe 13, an aerosol collecting branch pipe 14, a compressed air pipe 15, a sludge discharge pipe 16, a UV photocatalytic oxidation device 17, an ultraviolet disinfection device 18, a fan 19, a water outlet pipe 20 and an aseptic gas discharge pipe 21.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, a wastewater treatment device dedicated for medical institutions comprises a pre-denitrification unit connected with a first water inlet pipe 9, an anaerobic unit connected with a denitrification oxygen unit and a second water inlet pipe 10, an anoxic unit connected with the anaerobic unit, an aerobic unit connected with the anoxic unit, a precipitation unit positioned between the aerobic units, an aerosol collection unit connected with the anoxic unit, the anaerobic unit, the aerobic unit and the precipitation unit and used for discharging gas inside, and a UV photocatalytic oxidation device 17 connected with the aerosol collection unit; the oxygen deficiency unit, the anaerobic unit, the aerobic unit and the precipitation unit are all closed structures, and the waste gas inside is discharged after being disinfected and sterilized by the UV photocatalytic oxidation device 17 through the aerosol collection unit, so that the diffusion of bacteria and viruses caused by the random discharge of the gas inside is avoided. Supernatant liquid after mud-water separation of the precipitation unit is discharged through the ultraviolet disinfection device 18, and reflux liquid and sludge in the precipitation unit are respectively connected with the pre-anaerobic unit and the anaerobic unit through the reflux unit so as to denitrify and dephosphorize sewage.
The pre-denitrification unit comprises a pre-denitrification tank 1, a first water inlet pipe 9 is connected with the pre-denitrification tank 1 and discharges sewage into the pre-denitrification tank 1, the pre-denitrification tank 1 adopts a closed container, and part of the sewage is subjected to anaerobic phosphorus release and nitrate reduction in the pre-denitrification tank 1 so as to enhance the nitrogen and phosphorus removal capability of the system.
The anaerobic unit comprises an anaerobic tank 2, a second water inlet pipe 10 is connected with the anaerobic tank 2, the pre-denitrification tank 1 is connected with the anaerobic tank 2, the other part of sewage and the sewage treated by the pre-denitrification tank 1 are subjected to anaerobic decomposition in the anaerobic tank 2, and part of BOD is removed, so that part of nitrogen-containing compounds are converted into N2 (denitrification) to be released.
The anoxic unit comprises an anoxic tank 3, the anaerobic tank 2 is connected with the anoxic tank 3, in the anoxic tank 3, denitrifying bacteria take undecomposed carbon-containing organic matters in sewage as carbon sources, and a large amount of NO3-N brought by nitrifying liquid reflux in the precipitation unit is reduced into N2 to be released to the air, so that the aim of denitrification is fulfilled.
The aerobic unit comprises a first aerobic tank 4 and a second aerobic tank 6, a liquid inlet of the first aerobic tank 4 is connected with the anoxic tank 3, the sedimentation unit comprises a first sedimentation tank 5 connected with the first aerobic tank 4 and a second sedimentation tank 7 connected with the second aerobic tank 6, the first sedimentation tank 5 is connected with the second aerobic tank 6, an overflow weir of the second sedimentation tank 7 is connected with an ultraviolet disinfection device 18 and discharges clean water after disinfection, sludge discharge pipes 16 are arranged in the first sedimentation tank 5 and the second sedimentation tank 7, air lift devices are arranged in the first sedimentation tank 5 and the second sedimentation tank 7, and sludge is periodically pumped out and discharged through the sludge discharge pipes 16; NH3-N (ammonia nitrogen) in the water entering the aerobic tank 4 is subjected to nitration reaction to generate nitrate radicals, organic matters in the water are oxidized and decomposed to supply energy to phosphorus-absorbing microorganisms, the microorganisms absorb phosphorus from the water, the phosphorus enters cell tissues and is enriched in the microorganisms, and the phosphorus-rich sludge is separated by the first sedimentation tank 5 and then discharged from the system in the form of phosphorus-rich sludge. The effluent from the first sedimentation tank 5 enters a second aerobic tank 6 for further advanced treatment, and the supernatant effluent is subjected to mud-water separation in a second sedimentation tank 7 and then enters an ultraviolet disinfection device 18 through a water collecting tank for disinfection treatment and then is discharged into a municipal sewage pipe network.
The aerosol collecting unit comprises an aerosol collecting main pipe 13, and an aerosol collecting branch pipe 14, wherein the two ends of the aerosol collecting main pipe are respectively connected with the aerosol collecting main pipe 13, an anoxic tank 2, an anaerobic tank 3, a first aerobic tank 4, a second aerobic tank 6, a first sedimentation tank 5 and a second sedimentation tank 7, one end of the aerosol collecting main pipe 13 is connected with a UV photocatalytic oxidation device 17, and the UV photocatalytic oxidation device 17 is connected with an aseptic gas discharge pipe 21 and used for discharging disinfected gas. The UV photocatalytic oxidation device 17, the ultraviolet disinfection device 18 and the aeration fan 19 are all positioned in the fan room.
The backflow unit comprises a sludge backflow pipe 11 with two ends respectively connected with the second sedimentation tank 7 and the pre-anoxic tank 1, and a nitrification liquid backflow pipe 12 with two ends respectively connected with the second sedimentation tank 5 and the anaerobic tank 2, wherein part of sewage and the backflow sludge of the second sedimentation tank 7 are subjected to anaerobic ammonia oxidation biological denitrification in the pre-anoxic tank 1 so as to enhance the denitrification capability of the system, effectively remove nitrate in the backflow sludge, ensure low-concentration nitrate in the inlet water of the anaerobic tank, reduce the interference of nitrate in the backflow sludge on phosphorus release, and fully release phosphorus from phosphorus accumulating bacteria in the sludge backflow mixed liquid under the anaerobic condition. Then enters an anoxic tank 3, in the anoxic tank 3, denitrifying bacteria take undecomposed carbon-containing organic matters in the sewage as carbon sources, and reduce a large amount of NO3-N brought in the nitrifying liquid reflux liquid in the nitrifying liquid reflux pipe 12 into N2 to be released to the air, so that the aim of denitrification is fulfilled.
The process and principle of wastewater treatment are as follows: wastewater is fed in a segmented manner through a first water inlet pipe 9 and a second water inlet pipe 10, a part of wastewater enters a pre-denitrification tank 1, and anaerobic ammonia oxidation biological denitrification is carried out on a part of wastewater and return sludge of a second sedimentation tank 7 in the pre-denitrification tank 1, so that the denitrification capability of the system is enhanced, nitrate in the return sludge can be effectively removed, low-concentration nitrate in the inlet water of the anaerobic tank is ensured, and the interference of nitrate in the return sludge on phosphorus release is reduced; the other part of the sewage and the sewage treated by the pre-anoxic tank 1 are subjected to anaerobic decomposition in the anaerobic tank 2, part of BOD is removed, part of nitrogen-containing compounds are converted into N2 (denitrification) to be released, and phosphorus-accumulating bacteria in the sludge backflow mixed liquor fully release phosphorus under the anaerobic condition. Then the sewage enters an anoxic tank 3, in the anoxic tank 3, denitrifying bacteria take undecomposed carbon-containing organic matters in the sewage as a carbon source, a large amount of NO3-N brought in a nitrifying liquid reflux is reduced into N2 to be released to the air, the aim of denitrification is achieved, then NH3-N (ammonia nitrogen) in water entering a first aerobic tank 4 is subjected to nitration reaction to generate nitrate radicals, meanwhile, the organic matters in the water are subjected to oxidative decomposition to supply energy to phosphorus-absorbing microorganisms, the microorganisms absorb phosphorus from the water, the phosphorus enters cell tissues and is enriched in the microorganisms, and the phosphorus-rich sludge is separated by a first sedimentation tank 5 and then discharged from the system in the form of phosphorus-rich sludge. The effluent of the first sedimentation tank 5 enters a second aerobic tank 6 for further advanced treatment, the supernatant effluent is subjected to mud-water separation in a first sedimentation tank 7 and then is disinfected in an ultraviolet disinfection device 18 through a water collecting tank and then discharged into a municipal sewage pipe network, the biological unit of the integrated special wastewater treatment equipment for the medical institution adopts a fully closed design, an aeration branch pipe 14 is arranged in the biological unit, and waste gas generated by anaerobic treatment and aerosol generated by aerobic aeration are collected and then are deodorized and sterilized through an UV photocatalytic oxidation device 17 and then are discharged into the atmosphere.
The utility model has the advantages of modular design, compact structure, small occupied area, and integration of biochemical treatment, sedimentation, disinfection and other unit treatments; the gravity flow stirring technology and the air lift backflow technology are adopted in the integrated device, no running part is arranged in the box body, the performance is reliable, and the running cost is low; the system has high automation degree, can realize remote control, is unattended, and has zero contact between pipe transportation personnel and sewage; can realize the omnibearing disinfection of aerosol generated in the effluent and sewage treatment process and block the diffusion of infectious viruses, and is particularly suitable for sewage treatment in places such as infectious disease isolation hospitals, infectious disease square warehouse hospitals, epidemic situation prevention and control medical reservation points and the like.
Claims (10)
1. The utility model provides a special waste water treatment equipment of medical institution which characterized in that: including the denitration unit in advance with first water piping connection, with the anaerobic unit who advances water piping connection and second water piping connection in advance, the oxygen deficiency unit of being connected with the anaerobic unit, the good oxygen unit of being connected with the oxygen deficiency unit, be located the precipitation unit between the good oxygen unit, with the oxygen deficiency unit, the anaerobic unit, good oxygen unit and precipitation unit are connected and with inside gas exhaust aerosol collection unit, the UV photocatalytic oxidation device of being connected with aerosol collection unit, the supernatant is discharged through ultraviolet ray degassing unit after the mud-water separation of precipitation unit, reflux and mud in the precipitation unit pass through the reflux unit and are connected so that sewage denitrogenation and dephosphorization with anaerobic unit in advance respectively with denitration unit and anaerobic unit.
2. The wastewater treatment apparatus dedicated for medical institutions according to claim 1, wherein: the pre-denitration unit comprises a pre-denitration tank, and the first water inlet pipe is connected with the pre-denitration tank and discharges sewage into the pre-denitration tank.
3. The medical institution-specific wastewater treatment facility according to claim 2, characterized in that: the anaerobic unit comprises an anaerobic tank, the second water inlet pipe is connected with the anaerobic tank, and a liquid outlet of the pre-denitrification tank is connected with the anaerobic tank.
4. The wastewater treatment apparatus dedicated for medical institutions according to claim 1, wherein: the oxygen deficiency unit comprises an oxygen deficiency tank, and an overflow weir of the oxygen deficiency unit is connected with the oxygen deficiency tank.
5. The wastewater treatment apparatus dedicated for medical institutions according to claim 1, wherein: the aerobic unit comprises a first aerobic tank and a second aerobic tank, and a liquid inlet of the first aerobic tank is connected with a liquid outlet of the anoxic unit.
6. The medical institution-specific wastewater treatment facility according to claim 5, characterized in that: the first aerobic tank and the second aerobic tank are both provided with aerators, and the aerators are connected with an outlet of an aeration fan.
7. The wastewater treatment apparatus dedicated for medical institutions according to claim 5, wherein: the sedimentation unit comprises a first sedimentation tank connected with the first aerobic tank and a second sedimentation tank connected with the second aerobic tank, wherein the liquid outlet of the first sedimentation tank is connected with the liquid inlet of the second aerobic tank, and the overflow weir of the second sedimentation tank is connected with the ultraviolet disinfection device and discharges the clean water after disinfection.
8. The wastewater treatment apparatus dedicated for medical institutions according to claim 1, wherein: the aerosol collecting unit comprises a gas collecting main pipe and a gas collecting branch pipe connected with the anoxic unit, the anaerobic unit, the aerobic unit and the precipitation unit, the gas collecting main pipe is connected with the UV photocatalytic oxidation device, and through a fan arranged in the UV photocatalytic oxidation device, the aerosol containing peculiar smell gas and viruses generated in the sewage treatment process is led into the UV photocatalytic oxidation device to be disinfected and then discharged.
9. The medical institution-specific wastewater treatment facility according to claim 7, characterized in that: the backflow unit comprises a sludge backflow pipe with two ends respectively connected with the second sedimentation tank and the pre-denitrification tank, and a nitrification liquid backflow pipe with two ends respectively connected with the second sedimentation tank and the anaerobic tank.
10. The medical institution-specific wastewater treatment facility according to claim 7, characterized in that: and a sludge discharge pipe is arranged in each of the first sedimentation tank and the second sedimentation tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222022150.5U CN218146264U (en) | 2022-08-03 | 2022-08-03 | Special waste water treatment equipment of medical institution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222022150.5U CN218146264U (en) | 2022-08-03 | 2022-08-03 | Special waste water treatment equipment of medical institution |
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| CN218146264U true CN218146264U (en) | 2022-12-27 |
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| CN202222022150.5U Active CN218146264U (en) | 2022-08-03 | 2022-08-03 | Special waste water treatment equipment of medical institution |
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