CN205328778U - Medical wastewater treatment device - Google Patents
Medical wastewater treatment device Download PDFInfo
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- CN205328778U CN205328778U CN201620065670.6U CN201620065670U CN205328778U CN 205328778 U CN205328778 U CN 205328778U CN 201620065670 U CN201620065670 U CN 201620065670U CN 205328778 U CN205328778 U CN 205328778U
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Abstract
The utility model belongs to oral cavity dentistry sewage treatment field, concretely relates to medical wastewater treatment device, including the sewage reaction box, set up sewage import and outlet of sewer on the sewage reaction box, the outlet pipe is connected to the outlet of sewer, the drainage self priming pump is installed along the drainage direction in proper order to the outlet pipe, drain filter, terminal two branch roads that fall into of outlet pipe, install the sample valve on the branch road no. 1, install the drain valve on the branch road no. 2, the interior bottom of sewage reaction box sets up and is used for ozone and the mixed bubble stone of sewage, bubble stone is connected through the hose of the nai ozone device outside with being located the sewage reaction box, the bottom outside of sewage reaction box is equipped with ultrasonic device. This equipment adopts ultrasonic wave and ozone jointly to the sewage disinfection of disinfecting, has expanded the disinfection scope of disinfecting, sampling test qualified back emission, environmental protection high efficiency, have and flow automatically and inhale two kinds of functions of intaking certainly, solved the collection problem with flat bed and following sewage, the extensive popularization and application of being convenient for.
Description
Technical field
This utility model relates to a kind of Medical wastewater treatment device, specifically a kind of stomatological hospital, dental clinic, community clinic integration Medical wastewater treatment device, belong to oral cavity dentistry sewage treatment area。
Background technology
At present, the Sole Proprietorship such as medium and small stomatological hospital, dental clinic, community clinic development is swift and violent, and quickly emerged large quantities of medium and small oral cavities dental clinic in each big city, and the sewage effluent of these medical institutions becomes a difficult problem。They do not possess a whole set of Medical Wastewater Disposal System of construction as general hospital, and great majority are to found in shop along street and building apartment, sewage quantity is only small, source of sewage dispersion, cannot digging pit, civil engineering, location be expensive, limited space, additionally, some clinic can only one layer arrange blowoff line, it is impossible to enter sewage apparatus by flow by gravity；Allow just now to enter municipal wastewater net after country's GB18466-2005 standard regulation medical sewage is up to standard。
Now, most of oral cavities dentistry sewage disposal device adopts ozonization, and its decontaminating apparatus generally selects a certain ozonator of high voltage discharge type or ultraviolet radiation formula or electrolytic, is mixed in sewage by the ozone of generation to carry out virus killing and disappears bacterium。Ozonator is usually with product, only completing sterilization by control ozone concentration and response time, it is easy to cause wastewater disinfection not thorough。Only sterilizing more single by ozone one mode, sterilization type covers incomplete。
Oral cavity dentistry sewage generally except external containing infective pathogens such as substantial amounts of antibacterial, viruses, possibly together with chemical agent and bad tooth microparticle etc., has the features such as space-pollution, acute infection and latent infection, and direct emission hazard is very big。The sewage source of oral cavity dental clinic has: the strong and weak suction pipe road sewage of dental multipurpose therapy unit spittoon sewage, dentistry electronic suction machine extraction, dental diagnostic room cleaning sullage, dentistry facility department sewage etc.。The Sewage outlet of oral cavity dental clinic is many and ratio is relatively decentralized, and branch processes unrealistic, it is necessary to converges into an independent road medical sewage house steward, and never can mix with sanitary sewage pipeline。But the dirty water collecting tank of current oral cavity dental clinic does not have the ability that each sewage of oral cavity dental clinic collects one process, now to be improved。
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provides and a kind of adopts the disinfection mode of ultrasound wave and ozone Combined Treatment, merged ozone wide spectrum quick sterilization and the Medical wastewater treatment device of ultrasound wave microvesicle cavitation sterilization feature, extend sterilizing scope, and the qualified rear discharge of sewage sampling detection after processing, environment-friendly high-efficiency。
Medical wastewater treatment device described in the utility model, including sewage reaction chamber, sewage reaction chamber arranges wastewater inlet and outlet of sewer, outlet of sewer connects outlet pipe, draining self priming pump installed successively by outlet pipe along drainage direction, drain filter, outlet pipe end is divided into two branch roads, branch road one is installed sampling valve, branch road two is installed drain valve, the inner bottom part of sewage reaction chamber is arranged to Bubbled stone ozone and sewage mixed, Bubbled stone is connected with the ozone equipment being positioned at outside sewage reaction chamber by the flexible pipe of resistance to ozone, the bottom outside of sewage reaction chamber is provided with ultrasonic unit。
Sewage reaction chamber described in the utility model is connected to ultrasonic unit and two kinds of disinfecting devices of ozone equipment, and both devices are all carry out from the bottom to top from the bottom of sewage reaction chamber medical sewage is reacted, process water after disinfection is filtered by draining self priming pump, first open sampling valve afterwards, process water after filtration first passes through branch road one and is sampled, after sampling detection is qualified, closes sampling valve, open drain valve and carry out discharging。
Wherein, the filter that described drain filter can take various forms, this utility model preferably employs active carbon filter, active carbon filter is conventional filters, rubble sand bed course and high grade activated carbon it is filled with in it, the surface concentration of a layer equilibration is formed on activated carbon granule surface, in the impurity absorption in sewage to activated carbon granule, advantages of good adsorption effect。
Preferably, described ozone equipment includes ozonator and air compressor, ozonator is by the import of the hose connection air compressor of resistance to ozone, the outlet of air compressor is connected with Bubbled stone by the flexible pipe of resistance to ozone, utilize ozonator to produce ozone, and ozone air compressor is passed into the sterilization that in sewage reaction chamber, sewage carried out disinfection。Wherein, ozonator can require according to ozone concentration that (ozone dosage is 3-30mg/L h) adopts high voltage discharge type ozonator or hydrolyzing type ozonator, easy to use, simple to operate, safety, produces without harmful residual material。
Preferably, described ultrasonic unit includes shell, ultrasonic oscillator and supersonic generator, and shell is positioned at the lower section of sewage reaction chamber, and ultrasonic oscillator is installed in the enclosure, and ultrasonic oscillator connects supersonic generator。Utilize ultrasonic unit to produce microwave sewage microbubble cavitation is combined ozone together sewage to be carried out disinfection sterilization。
Preferably, described wastewater inlet arranges two, wherein, one wastewater inlet connects from head piece by inlet pipeline one, inlet pipeline one is installed filter one, another wastewater inlet is connected from suction inlet by inlet pipeline two, and inlet pipeline two installs filter two, negative pressure ejector successively along water inlet direction；It is provided with circulation pump mouth in the bottom of sewage reaction chamber simultaneously, corresponding circulation pump mouth is provided with a circulation self priming pump, the water inlet of circulation self priming pump is connected with circulation pump mouth by pipeline, and its outlet is connected with negative pressure ejector by pipeline, collectively forms circulation self-priming apparatus。
This preferred version is when application, to connect higher than from the upper common sewer of head piece with oral cavity dental clinic arranges position from head piece, to be connected lower than from the same flat bed of head piece and the common sewer of following floor with oral cavity dental clinic arranges position from suction inlet, so that sewage reaction chamber water inlet point two-way:
One tunnel is to utilize gravity to will be above flowing into sewage reaction chamber from the soil pipe of head piece by inlet pipeline one；Another road is to utilize negative pressure ejector to will be less than sucking sewage reaction chamber from the soil pipe of head piece by inlet pipeline two, specific works process is as follows, sewage in sewage reaction chamber is in time circulating self priming pump and enter negative pressure ejector, pressure in negative pressure ejector forms negative pressure less than atmospheric gas pressure, thereby through negative pressure by the sewage inspiration sewage reaction chamber in the sewage pipe of medical apparatus and instruments, solve in traditional oral dental clinic with flat bed and following sewage collecting, do not need the difficult problem that civil engineering is digged pit, finally the sewage in the sewage pipe of medical apparatus and instruments can be collected in the sewage reaction chamber entered in this utility model and process, solve the inconvenience of Scatter Gather sewage and individual processing。
Preferably, in described sewage reaction chamber, fluid level control device is set；Fluid level control device includes the low liquid-level floater switch set gradually from low to high, middle liquid-level floater switch, high liquid-level floater switch；Described each float switch and ultrasonic unit, ozone equipment, draining self priming pump are all connected with control system。When the water level in sewage reaction chamber reaches middle liquid-level floater switch height, this information is fed back to control system by middle liquid-level floater switch, ultrasonic unit and ozone equipment is opened by controlling system, and carry out disinfection sterilization to sewage；When the water level in sewage reaction chamber reaches high liquid-level floater switch place height, controlled draining self priming pump by control system to start working, discharge after sewage after process is purified by active carbon filter, when the water level in sewage reaction chamber reaches low liquid-level floater switch place height, closing draining self priming pump, whole workflow is realized by automatization。
It is preferred that, control system is provided with and controls opening of ozone equipment and ultrasonic unit, the time interval controls module stopped, such ultrasonic unit and ozone equipment are stopped by fluid level control device therefrom liquid-level floater switch open to low liquid-level floater switch, by the set value calculation ultrasonic unit of the time interval controls module in control system and ozone equipment, (the two opens whole service process simultaneously, stop) open, downtime, wherein, time interval controls module is electronic time relay, electronic time relay is conventional equipment, can determine and set operation and the dwell time of ultrasonic unit and ozone equipment according to total clump count of pathogenic bacteria in medical sewage testing result, when the water level rising in sewage reaction chamber reaches middle liquid-level floater switch height, electronic time relay is started working, first time delay a period of time makes ultrasonic unit and ozone equipment start, time delay a period of time makes ultrasonic unit and ozone equipment stop again, such ultrasonic unit and ozone equipment constantly repeat above-mentioned action。Under normal circumstances, when equipment dispatches from the factory, the operation set of time of ultrasonic unit and ozone equipment is 3 minutes, dwell time is set to 1 minute, and when namely in sewage reaction chamber, water level rises to middle liquid-level floater switch height, first time delay makes ultrasonic unit and ozone equipment start for 1 minute, time delay makes ultrasonic unit and ozone equipment stop for 3 minutes again, and by said process circulation open, stop, until water level in sewage reaction chamber arrives low liquid-level floater switch, electronic time relay stopping action。Simultaneously, this control system has two kinds of circuit control modes for customer selecting, one is circuit common control, separately having a kind of is adopt powerful MCU single chip circuit to control, various functions through testing two ways all can meet requirement, and MCU single-chip computer control system has feature easy for installation, with low cost。
This utility model is compared with prior art had the beneficial effect that
This utility model be stomatological hospital, dental clinic, the special Medical wastewater treatment device such as community clinic, reasonable in design, ultrasound wave and ozone can be adopted to combine sewage is carried out sterilizing, overcome the defect that legacy equipment only uses ozonization, form is single, extend sterilizing scope, after sterilizing, draining self priming pump carries out adsorption filtration by active carbon filter, discharge, environment-friendly high-efficiency after sampling detection is qualified；There are gravity flow and two kinds of inlet functions of self-priming, solve the collection problem of same flat bed and following sewage, need not civil engineering dig pit, by flowing automatically, sewage is collected into sewage reaction chamber by self-priming, solving the inconvenience of Scatter Gather sewage, individual processing, this integrated sewage treating apparatus is easy to large-scale promotion application。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic flow sheet being carried out sewage disposal by this utility model。
In figure: 1, sewage reaction chamber；2, high liquid-level floater switch；3, middle liquid-level floater switch；4, low liquid-level floater switch；5, outlet pipe；6, draining self priming pump；7, drain filter；8, drain valve；9, branch road two；10, branch road one；11, sampling valve；12, ozone equipment；13, the flexible pipe of resistance to ozone；14, ozonator；15, air compressor；16, supersonic generator；17, Bubbled stone；18, shell；19, ultrasonic oscillator；20, from suction inlet；21, inlet pipeline two；22, circulation self priming pump；23, filter two；24, negative pressure ejector；25, from head piece；26, filter one；27, inlet pipeline one；28, system is controlled；29, circulation self-priming apparatus；30, ultrasonic unit。
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, Medical wastewater treatment device described in the utility model includes sewage reaction chamber 1, sewage reaction chamber 1 arranges wastewater inlet and outlet of sewer, outlet of sewer connects outlet pipe 5, draining self priming pump 6 installed successively by outlet pipe 5 along drainage direction, drain filter 7, outlet pipe 5 end is divided into two branch roads, branch road 1 is installed sampling valve 11, branch road 29 is installed drain valve 8, the inner bottom part of sewage reaction chamber 1 is arranged to the Bubbled stone 17 ozone and sewage mixed, Bubbled stone 17 is connected with the ozone equipment 12 being positioned at outside sewage reaction chamber 1 by the flexible pipe of resistance to ozone 13, the bottom outside of sewage reaction chamber 1 is provided with ultrasonic unit 30。Ultrasonic unit 30 and 12 two kinds of disinfecting devices of ozone equipment it are connected to due to sewage reaction chamber 1, and both devices are all carry out from the bottom to top from the bottom of sewage reaction chamber 1 medical sewage is reacted, process water after disinfection is filtered by draining self priming pump 6, first open sampling valve 11 afterwards, process water after filtration first passes through branch road 1 and is sampled, and after sampling detection is qualified, closes sampling valve 11, open drain valve 8 to discharge, enter municipal wastewater pipe network。
In the present embodiment:
Drain filter 7 adopts active carbon filter, in the impurity absorption in sewage to activated carbon granule；
Ozone equipment 12 includes ozonator 14 and air compressor 15, ozonator 14 connects the import of air compressor 15 by the flexible pipe of resistance to ozone 13, the outlet of air compressor 15 is connected with Bubbled stone 17 by the flexible pipe of resistance to ozone 13, ozonator 14 is utilized to produce ozone, and ozone air compressor 15 is passed into the sterilization that in sewage reaction chamber 1, sewage carried out disinfection, ozonator 14 can require according to ozone concentration that (ozone dosage is 3-30mg/L h) adopts high voltage discharge type ozonator or hydrolyzing type ozonator, easy to use, simple to operate, safety, material without harmful residual produces；
Ultrasonic unit 30 includes shell 18, ultrasonic oscillator 19 and supersonic generator 16, shell 18 is positioned at the lower section of sewage reaction chamber 1, ultrasonic oscillator 19 is arranged in shell 18, ultrasonic oscillator 19 connects supersonic generator 16, utilize ultrasonic unit 30 to produce microwave sewage microbubble cavitation is combined ozone together sewage to be carried out disinfection sterilization, in the present embodiment, the frequency of vibration of ultrasonic oscillator 19 is 30KHz-1MHz, and power is 50W-3000W；
Described wastewater inlet arranges two, wherein, one wastewater inlet is connected from head piece 25 by inlet pipeline 1, inlet pipeline 1 is installed filter 1, another wastewater inlet is connected from suction inlet 20 by inlet pipeline 2 21, and inlet pipeline 2 21 installs filter 2 23, negative pressure ejector 24 successively along water inlet direction；It is provided with circulation pump mouth in the bottom of sewage reaction chamber 1 simultaneously, corresponding circulation pump mouth is provided with a circulation self priming pump 22, the water inlet of circulation self priming pump 22 is connected with circulation pump mouth by pipeline, and its outlet is connected with negative pressure ejector 24 by pipeline, collectively forms circulation self-priming apparatus 29。During application, to connect higher than from the upper common sewer of head piece 25 with oral cavity dental clinic arranges position from head piece 25, to be connected lower than from the same flat bed of head piece 25 and the common sewer of following floor with oral cavity dental clinic arranges position from suction inlet 20, so that sewage reaction chamber 1 water inlet point two-way: a road is to utilize gravity to will be above flowing into sewage reaction chamber 1 from the soil pipe of head piece 25 by inlet pipeline 1；Another road is to utilize negative pressure ejector 24 to will be less than sucking sewage reaction chamber 1 from the soil pipe of head piece 25 by inlet pipeline 2 21, specific works process is as follows, sewage in sewage reaction chamber 1 is in time circulating self priming pump 22 and enter negative pressure ejector 24, pressure in negative pressure ejector 24 forms negative pressure less than atmospheric gas pressure, thereby through negative pressure by the sewage inspiration sewage reaction chamber 1 in the sewage pipe of medical apparatus and instruments, solve in traditional oral dental clinic with flat bed and following sewage collecting, do not need the difficult problem that civil engineering is digged pit, finally the sewage in the sewage pipe of medical apparatus and instruments can be collected in the sewage reaction chamber 1 entered in this utility model and process, solve the inconvenience of Scatter Gather sewage and individual processing。
In order to realize Automated condtrol, in the present embodiment, fluid level control device is set in sewage reaction chamber 1；Fluid level control device includes the low liquid-level floater switch 4 set gradually from low to high, middle liquid-level floater switch 3, high liquid-level floater switch 2；Described each float switch and ultrasonic unit 30, ozone equipment 12, draining self priming pump 6 are all connected with control system 28。When the water level in sewage reaction chamber 1 reaches middle liquid-level floater switch 3 height, this information is fed back to control system 28 by middle liquid-level floater switch 3, control system 28 ultrasonic unit 30 and ozone equipment 12 are opened, and carry out disinfection sterilization to sewage；When the water level in sewage reaction chamber 1 reach high liquid-level floater switch 2 place height time, controlled draining self priming pump 6 by control system 28 to start working, discharge municipal wastewater pipe network after sewage after process is purified by active carbon filter, when the water level in sewage reaction chamber 1 reach low liquid-level floater switch 4 place height time, closing draining self priming pump 6, whole workflow is realized by automatization。
And, control system 28 is provided with and controls opening of ozone equipment 12 and ultrasonic unit 30, the time interval controls module stopped, such ultrasonic unit 30 and ozone equipment 12 are switched 3 by fluid level control device therefrom liquid-level floater and are opened into low liquid-level floater switch 4 stopping, by the set value calculation ultrasonic unit 30 of the time interval controls module in control system and ozone equipment 12, (the two opens whole service process simultaneously, stop) open, downtime, wherein, time interval controls module is electronic time relay, electronic time relay is conventional equipment, can determine according to total clump count of pathogenic bacteria in medical sewage testing result and set operation and the dwell time of ultrasonic unit 30 and ozone equipment 12, when the water level rising in sewage reaction chamber 1 reaches middle liquid-level floater switch 3 height, electronic time relay is started working, first time delay a period of time makes ultrasonic unit 30 and ozone equipment 12 start, time delay a period of time makes ultrasonic unit 30 and ozone equipment 12 stop again, such ultrasonic unit 30 and ozone equipment 12 constantly repeat above-mentioned action。Under normal circumstances, when equipment dispatches from the factory, the operation set of time of ultrasonic unit 30 and ozone equipment 12 is 3 minutes, dwell time is set to 1 minute, namely when in sewage reaction chamber 1, water level rises to middle liquid-level floater switch 3 height, first time delay makes ultrasonic unit 30 and ozone equipment 12 start for 1 minute, time delay makes ultrasonic unit 30 and ozone equipment 12 stop for 3 minutes again, and by said process circulation open, stop, until the water level in sewage reaction chamber 1 arrives low liquid-level floater switch 4, electronic time relay stopping action。Simultaneously, this control system has two kinds of circuit control modes for customer selecting, one is circuit common control, separately having a kind of is adopt powerful MCU single chip circuit to control, various functions through testing two ways all can meet requirement, and MCU single-chip computer control system has feature easy for installation, with low cost。
Claims (9)
1. a Medical wastewater treatment device, it is characterized in that: include sewage reaction chamber (1), sewage reaction chamber arranges wastewater inlet and outlet of sewer on (1), outlet of sewer connects outlet pipe (5), draining self priming pump (6) installed successively by outlet pipe (5) along drainage direction, drain filter (7), outlet pipe (5) end is divided into two branch roads, branch road one (10) is upper installs sampling valve (11), branch road two (9) is installed drain valve (8), the inner bottom part of sewage reaction chamber (1) arranges Bubbled stone (17), Bubbled stone (17) is connected by the ozone equipment (12) that the flexible pipe of resistance to ozone (13) is outside with being positioned at sewage reaction chamber (1), the bottom outside of sewage reaction chamber (1) is provided with ultrasonic unit (30)。
2. Medical wastewater treatment device according to claim 1, it is characterized in that: described ozone equipment (12) includes ozonator (14) and air compressor (15), ozonator (14) connects the import of air compressor (15) by the flexible pipe of resistance to ozone (13), and the outlet of air compressor (15) is connected with Bubbled stone (17) by the flexible pipe of resistance to ozone (13)。
3. Medical wastewater treatment device according to claim 2, it is characterised in that: described ozonator (14) is high voltage discharge type ozonator or hydrolyzing type ozonator。
4. Medical wastewater treatment device according to claim 1, it is characterized in that: described ultrasonic unit (30) includes shell (18), ultrasonic oscillator (19) and supersonic generator (16), shell (18) is positioned at the lower section of sewage reaction chamber (1), ultrasonic oscillator (19) is arranged in shell (18), and ultrasonic oscillator (19) connects supersonic generator (16)。
5. Medical wastewater treatment device according to claim 1, it is characterised in that: described drain filter (7) adopts active carbon filter。
6. Medical wastewater treatment device according to claim 1, it is characterized in that: described wastewater inlet arranges two, wherein, one wastewater inlet is connected from head piece (25) by inlet pipeline one (27), inlet pipeline one (27) is upper installs filter one, another wastewater inlet is connected from suction inlet (20) by inlet pipeline two (21), and inlet pipeline two (21) installs filter two (23), negative pressure ejector (24) successively along water inlet direction；It is provided with circulation pump mouth in the bottom of sewage reaction chamber (1) simultaneously, corresponding circulation pump mouth is provided with a circulation self priming pump (22), the water inlet of circulation self priming pump (22) is connected with circulation pump mouth by pipeline, its outlet is connected with negative pressure ejector (24) by pipeline, collectively forms circulation self-priming apparatus (29)。
7. according to the arbitrary described Medical wastewater treatment device of claim 1～6, it is characterised in that: in described sewage reaction chamber (1), fluid level control device is set；Fluid level control device includes low liquid-level floater switch (4) set gradually from low to high, middle liquid-level floater switch (3), high liquid-level floater switch (2)；Described each float switch and ultrasonic unit (30), ozone equipment (12), draining self priming pump (6) are all connected with control system (28)。
8. Medical wastewater treatment device according to claim 7, it is characterised in that: described control system (28) is provided with the time interval controls module opening, stopping controlling ozone equipment (12) and ultrasonic unit (30)。
9. Medical wastewater treatment device according to claim 8, it is characterised in that: described time interval controls module adopts electronic time relay。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065670.6U CN205328778U (en) | 2016-01-23 | 2016-01-23 | Medical wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065670.6U CN205328778U (en) | 2016-01-23 | 2016-01-23 | Medical wastewater treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN205328778U true CN205328778U (en) | 2016-06-22 |
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ID=56319257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620065670.6U Active CN205328778U (en) | 2016-01-23 | 2016-01-23 | Medical wastewater treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865686A (en) * | 2017-04-17 | 2017-06-20 | 安徽华丰节能环保科技有限公司 | A kind of plasma medical mechanism sewage disposal complete set of equipments |
| CN109179568A (en) * | 2018-10-30 | 2019-01-11 | 长石河谷电器（重庆）有限公司 | A kind of full-automatic ultraviolet wastewater disinfection machine |
| CN111392853A (en) * | 2020-04-28 | 2020-07-10 | 苏州元周律医疗科技有限公司 | Sewage treatment device and method for oral treatment |
-
2016
- 2016-01-23 CN CN201620065670.6U patent/CN205328778U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865686A (en) * | 2017-04-17 | 2017-06-20 | 安徽华丰节能环保科技有限公司 | A kind of plasma medical mechanism sewage disposal complete set of equipments |
| CN109179568A (en) * | 2018-10-30 | 2019-01-11 | 长石河谷电器（重庆）有限公司 | A kind of full-automatic ultraviolet wastewater disinfection machine |
| CN111392853A (en) * | 2020-04-28 | 2020-07-10 | 苏州元周律医疗科技有限公司 | Sewage treatment device and method for oral treatment |
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