CN220317448U - Medical sewage treatment device - Google Patents

Medical sewage treatment device Download PDF

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Publication number
CN220317448U
CN220317448U CN202322089865.7U CN202322089865U CN220317448U CN 220317448 U CN220317448 U CN 220317448U CN 202322089865 U CN202322089865 U CN 202322089865U CN 220317448 U CN220317448 U CN 220317448U
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China
Prior art keywords
catalytic
dosing
reaction tank
pipe
water
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CN202322089865.7U
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Chinese (zh)
Inventor
曾滔
邹睿
金职权
杨德忠
黄新文
宋爽
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a medical sewage treatment device. The device comprises a reaction tank and a reaction module; the reaction tank is provided with a liquid inlet and a liquid outlet; the reaction module comprises a motor, a rotating shaft and a catalytic assembly; the rotating shaft is rotationally connected in the inner cavity of the reaction tank and is driven by a motor; the catalytic assembly comprises a plurality of catalytic tanks and a catalyst; each catalytic box is fixed on the rotating shaft at intervals in sequence; the outer shell of the catalytic box is in a grid shape; the catalyst is filled in the catalytic box. According to the utility model, the plurality of catalytic boxes are fixed on the rotating shaft, the outer shell of each catalytic box is in a grid shape, the treated medical wastewater passes through the catalytic boxes to perform catalytic reaction with the catalyst, and when the rotating shaft drives the catalytic boxes to rotate, the contact range between the catalytic boxes and the treated medical wastewater is increased; simultaneously, medical wastewater is stirred through a catalytic box to drive organic matters which are difficult to degrade to suspend, react and degrade; avoiding the precipitation of organic matters which leads to difficult catalytic degradation.

Description

Medical sewage treatment device
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a medical sewage treatment device.
Background
The hospital sewage has complex sources and components, contains pathogenic microorganisms, toxic and harmful physicochemical pollutants, radioactive pollution and the like, has the characteristics of space pollution, acute infection, latent infection and the like, and can become an important path for spreading epidemic diseases and seriously pollute the environment without effective treatment. Hospital sewage is contaminated by pathogenic microorganisms such as feces, infectious bacteria and viruses, has infectivity, and can induce diseases or cause injury. The hospital sewage contains acid, alkali, suspended solids, BOD, COD, animal and plant oil and other toxic and harmful substances.
In the prior art, the method of activated sludge and biological rotating discs is adopted for treating domestic sewage and medical sewage aiming at antibiotics and other drug residues and other refractory organic matters. However, due to the high cost and high operating cost of this method, the departments with annual sewage discharge of more than 100 ten thousand tons have basically no ability to use this treatment method for economic reasons. In addition, the above-mentioned treatment method is also unsuitable because the air temperature in northern areas is low, which is unfavorable for the propagation of microorganisms. At present, most medical sewage is treated by a chlorine sterilization method in medical departments in China, namely 'primary treatment'. COD, BOD5, ammonia, nitrogen and the like in the sewage treated by the treatment method reach the national standard secondary standard of sewage discharge, but the content is still very high, and the content of residual chlorine in the discharged water greatly exceeds the national standard, so that the treated water is discharged into a sewer, thereby not only causing a great deal of waste of water resources, but also causing environmental pollution.
Disclosure of Invention
The utility model aims to provide a medical sewage treatment device.
The utility model provides a medical sewage treatment device. The device comprises a reaction tank and a reaction module; the reaction tank is provided with a liquid inlet and a liquid outlet; the reaction module comprises a motor, a rotating shaft and a catalytic assembly; the rotating shaft is rotationally connected in the inner cavity of the reaction tank and is driven by a motor; the catalytic assembly comprises a plurality of catalytic tanks and a catalyst; each catalytic box is fixed on the rotating shaft at intervals in sequence; the outer shell of the catalytic box is in a grid shape; the catalyst is filled in the catalytic box.
Preferably, the distance between two adjacent catalytic tanks is 0.5-1.5 m.
Preferably, the catalytic box is made of transparent materials; the catalytic box can axially adjust the position along the rotating shaft, and the maximum adjusting distance is 1 m-5 m.
Preferably, the device further comprises a dosing tank and a dosing module; the dosing pool is divided into a medicament storage cavity positioned above and a mixing cavity positioned below by a first partition plate; the dosing module comprises a dosing pipe, a first water inlet pump and a dosing pump; the dosing tube is in an inverted T shape, is arranged in the mixing cavity, and the top end of the dosing tube is communicated with the bottom of the medicament storage cavity; the bottom of the dosing pipe is provided with a plurality of dosing openings communicated with the mixing cavity; the medicated pump is mounted on top of the medicament storage chamber. A water inlet is arranged on the mixing cavity; the water inlet is connected to the external treated medical sewage through a first water inlet pump; the liquid inlet of the mixing cavity is connected with the liquid inlet of the reaction tank through a liquid delivery pipe.
Preferably, the dosing tube is provided with a first electromagnetic valve.
Preferably, the apparatus further comprises a circulation module; the circulating module comprises a sewage detection device, a water outlet pipe, a water return pipe, a water pipe and a second water inlet pump; the water outlet pipe is arranged at the liquid outlet of the reaction tank; the bottom of the reaction tank is provided with a circulating liquid return port; the water outlet pipe is sequentially provided with a sewage detection device, a circulating branch port and a second electromagnetic valve along the direction away from the liquid outlet of the reaction tank; the liquid outlet of the reaction tank, the circulating branch port on the water outlet pipe, the water return pipe, the second water inlet pump, the water inlet pipe and the circulating liquid return port of the reaction tank are sequentially connected to form a circulating loop.
Preferably, a third electromagnetic valve is installed on the water return pipe.
Preferably, the reaction module further comprises a collecting lens, and the collecting lens is arranged at the top of the reaction tank.
Preferably, the catalyst comprises pyrite and ferroelectric stone, and the weight ratio of pyrite to ferroelectric stone is (1-3): (1-3).
Preferably, the pyrite has a particle size of 0.5-5 μm; the grain size of the ferroelectric stone is 0.5-5 mu m.
The utility model has the beneficial effects that:
1. according to the utility model, a plurality of catalytic boxes are fixed on the rotating shaft, the outer shells of the catalytic boxes are in a grid shape, the treated medical wastewater passes through the catalytic boxes to be subjected to catalytic reaction with the catalyst, and sulfate ions and sulfate free radicals generated by the reaction degrade organic substances in the treated medical wastewater. When the rotating shaft drives the catalytic box to rotate, the contact range of the catalytic box and the medical wastewater to be treated is increased; simultaneously, medical wastewater is stirred through a catalytic box to drive organic matters which are difficult to degrade to suspend, react and degrade; avoiding the precipitation of organic matters which leads to difficult catalytic degradation.
2. According to the utility model, the medicine adding pipe is designed to be in an inverted T shape, and the bottom of the medicine adding pipe is provided with the plurality of medicine distribution openings, so that the medicine liquid containing PMS and PDS added from the medicine adding pipe is uniformly distributed in the treated medical wastewater.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the catalytic assembly of the present utility model.
Wherein, 1, a medicine adding pool; 2. a reaction tank; 3. a dosing module; 3-1, a first water inlet pump; 3-2, a dosing pump; 3-3, a first separator; 3-4, a dosing tube; 3-5, a first electromagnetic valve; 4. a reaction module; 4-1, a second separator; 4-2, a motor; 4-3, a rotating shaft; 4-4, a transfusion tube; 4-5, a condensing lens; 4-6, a catalytic assembly; 4-6-1, a catalytic box; 4-6-2, catalyst; 5. a circulation module; 5-1, a sewage detection device; 5-2, a water outlet pipe; 5-3, a water return pipe; 5-4, a water pipe; 5-5, a second water inlet pump.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, a medical sewage treatment device comprises a dosing tank 1, a reaction tank 2, a circulation module 5, and a dosing module 3 and a reaction module 4 which are respectively arranged in the dosing tank 1 and the reaction tank 2. The dosing module 3 comprises a first water inlet pump 3-1, a dosing pump 3-2, a first partition plate 3-3, a dosing pipe 3-4 and a first electromagnetic valve 3-5. A water inlet is formed in the dosing tank 1; the first water inlet pump 3-1 is arranged at the water inlet, and the treated medical sewage is introduced into the dosing tank 1 through the first water inlet pump 3-1. The first baffle plate 3-3 is fixed with the wall of the dosing tank 1 and is positioned above the water inlet; the first partition plate 3-3 divides the dosing tank 1 into a dosing chamber located above and a mixing chamber located below. The top of the dosing cavity is provided with a dosing port. A dosing pump 3-2 is installed at the dosing port for introducing a liquid medicine containing PMS (peroxodisulfate) and PDS (peroxodisulfate) into the dosing chamber. The first baffle plate 3-3 is provided with a first transfusion port which is communicated with the dosing cavity and the mixing cavity. The dosing tube 3-4 is in an inverted T shape, and the top end of the dosing tube 3-4 is fixed on the bottom surface of the first baffle plate 3-3 and communicated with the first transfusion port. The bottom of the dosing tube 3-4 is provided with a plurality of dosing openings communicated with the dosing tank 1. The liquid medicine flowing into the medicine adding pipe 3-4 flows out from each medicine distributing port, so that the liquid medicine containing PMS and PDS is uniformly mixed with the treated medical sewage. PMS and PDS provide HSO to treated medical wastewater, respectively 5 - And S is 2 O 8 2- . The first electromagnetic valve 3-5 is arranged on the dosing pipe 3-4, and the first electromagnetic valve 3-5 is used for controlling the liquid medicine flowing from the dosing cavity to the mixing cavity to circulate or stop.
The reaction module 4 comprises a second baffle plate 4-1, a third baffle plate, a motor 4-2, a rotating shaft 4-3, a transfusion tube 4-4, a condensing lens 4-5 and a single pieceTo the valve and catalytic assembly 4-6. The second baffle plate 4-1 and the third baffle plate are arranged at intervals along the vertical direction of the reaction tank 2 and are fixed with the inner wall of the reaction tank. The second partition board 4-1, the third partition board and the inner wall of the reaction tank 2 form a reaction area of the reaction tank 2. The third baffle adopts transparent material. The reaction tank 2 is provided with a liquid inlet communicated with the mixing cavity of the dosing tank 1. The second baffle plate 4-1 is provided with a second transfusion port. The two ends of the infusion tube 4-4 are respectively fixed with the liquid inlet and the second infusion port. The infusion tube 4-4 is used for conveying the treated medical wastewater in the mixing cavity of the dosing tank 1 into the reaction area of the reaction tank 2. The check valve is installed in the tube of the infusion tube 4-4 for preventing the liquid in the reaction area from flowing back. The motor 4-2 is fixed on the second partition plate 4-1, and an output shaft of the motor 4-2 penetrates through the second partition plate 4-1. The rotating shaft 4-3 is fixed with the output shaft of the motor 4-2. The collecting lens 4-5 is arranged at the position of the pool opening of the reaction pool 2; the condensing lens is used for converging natural light, irradiating the converged natural light into the reaction tank, and irradiating and heating the natural light to enable the HSO to be achieved 5 - And S is 2 O 8 2- The O-O bond in the catalyst undergoes heterolytic cleavage to generate sulfate radical and hydroxyl radical. And oxidizing and degrading refractory organic matters in the medical wastewater by sulfate radical and hydroxyl radical.
The catalytic assembly 4-6 includes a plurality of catalytic tanks 4-6-1 and catalysts 4-6-2. The catalytic boxes 4-6-1 are sequentially fixed on the rotating shaft 4-3 at intervals; and the distance between two adjacent catalytic boxes 4-6-1 is 0.5-1.5 m. The outer shell of the catalytic box 4-6-1 is in a grid shape. The catalyst 4-6-2 is filled in the catalytic box 4-6-1.
The circulation module 5 comprises a sewage detection device, a water outlet pipe 5-2, a water return pipe 5-3, a water inlet pipe 5-4 and a second water inlet pump 5-5, wherein a liquid outlet is arranged in a reaction area of the reaction tank 2, and the liquid outlet is positioned above each catalytic component 4-6. The second baffle is provided with a circulating liquid return port. The water outlet pipe 5-2 is provided with a sewage detection device 5-1, a circulating branch port and a second electromagnetic valve in sequence along the direction away from the liquid outlet of the reaction tank. One end of the water return pipe 5-3 is arranged on a circulating branch port of the water outlet pipe 5-2, and the other end of the water return pipe 5-3 is arranged at a water inlet of the second water inlet pump 5-5. A third electromagnetic valve is arranged on the water return pipe 5-3. Two ends of the water pipe 5-4 are respectively fixed with a water outlet and a circulating liquid return port of the second water inlet pump 5-5. The liquid outlet of the reaction tank 2, the circulating branch port on the water outlet pipe 5-2, the water return pipe 5-3, the second water inlet pump 5-5, the water inlet pipe 5-4 and the circulating liquid return port of the reaction tank 2 form a circulating loop.
In the working process, the reaction area in the reaction tank 2 is continuously input with the treated medical wastewater through the infusion tube 4-4. The liquid level in the reaction tank 2 continuously rises until overflowing from the liquid outlet while the treated medical wastewater reacts. The sewage detection device 5-1 detects the pH value, the SS (suspended solids) content, the COD value, the BOD value and the fecal coliform number in the treated medical wastewater. When the treated medical wastewater reaches the emission standard, the third electromagnetic valve is conducted; the treated medical wastewater flows through the water return pipe 5-3 and is discharged into the reaction area of the reaction tank 2 through the second water inlet pump 5-5 for secondary treatment. When the sewage concentration meets the discharge standard, the third electromagnetic valve is closed, the second electromagnetic valve is opened, and the sewage is discharged from the water outlet pipe 5-2.
The utility model provides an unnecessary technical feature: the catalyst 4-6-2 is prepared by mixing pyrite and ferroelectric stone, and the content (according to the weight ratio) of the pyrite and the ferroelectric stone ranges from 3:1 to 1:3. Wherein, the grain size of the pyrite is 0.5-5 mu m of industrial grade pyrite; industrial grade ferroelectric stone with tourmaline particle size of 0.5-5 μm. Before the catalyst 4-6-2 is filled into the catalytic box 4-6-1, the pyrite and tourmaline raw materials in the catalyst 4-6-2 are pretreated, and the treatment process is as follows: the pyrite and the tourmaline are cleaned, baked for 8 to 12 hours at the temperature of 50 to 70 ℃, taken out after being baked, and sieved. In the working process, the liquid level of the treated medical wastewater rises in the reaction tank 2, and the medical wastewater passes through each catalytic box 4-6-1 and enters the catalytic box 4-6-1 from the grid buckles of the catalytic box 4-6-1. The catalyst 4-6-2 in the catalyst box 4-6-1 provides Fe to the medical wastewater to be treated 2+ 。Fe 2+ And S is equal to 2 O 8 2- The reaction is carried out so that S 2 O 8 2- The O-O bond in the catalyst undergoes heterolytic cleavage to generate sulfate ions and sulfate radicals. By sulfate ions and sulfate radicalsAnd (3) carrying out oxidative degradation treatment on organic matters in the treated organic wastewater. Simultaneously, under the drive of the rotating shaft 4-3, the catalytic boxes 4-6-1 are fully contacted with the medical wastewater to be treated, and simultaneously stir the medical wastewater to be treated.
The utility model provides an unnecessary technical feature: the first water inlet pump 3-1, the dosing pump 3-2, the first electromagnetic valve 3-5, the second electromagnetic valve, the third electromagnetic valve, the motor 4-2 and the second water inlet pump 5-5 are controlled by a PLC system.
The utility model provides an unnecessary technical feature: the catalytic box 4-6-1 is made of transparent materials, the catalytic box 4-6-1 can axially adjust the position along the rotating shaft, and the maximum adjusting distance is 1 m-5 m.
The working principle of the utility model is as follows:
the treated medical sewage is introduced into the dosing tank 1 through the first water inlet pump 3-1, the dosing pump is started, and the medicine liquid containing PMS and PDS is introduced into a dosing cavity of the dosing tank. The liquid medicine flows through the medicine adding pipe and is uniformly distributed into the treated medical sewage from each medicine distributing port of the medicine adding pipe. The treated medical sewage and the mixed solution containing PMS and PDS liquid medicine are introduced into the reaction area of the reaction tank through the infusion tube. The liquid level in the reaction tank is continuously increased along with the introduction of the treated medical wastewater. Starting the motor until the catalytic box is over, and driving the rotating shaft to rotate by an output shaft of the motor; the rotating shafts drive the catalytic boxes to rotate around the axes of the rotating shafts, and the catalytic boxes stir the treated medical wastewater. The medical wastewater to be treated flows into the catalytic box from the grid of the catalytic box, and under the catalysis of the catalyst, S is accelerated 2 O 8 2- The O-O bond in the catalyst is subjected to heterolytic cleavage to generate sulfate ions and sulfate radicals; the condensing lens positioned at the tank mouth of the reaction tank is used for converging natural light, and converging natural light is irradiated into the reaction tank, so that the HSO is realized through irradiation and heating of the natural light 5 - And S is 2 O 8 2- The O-O bond in the catalyst undergoes heterolytic cleavage to generate sulfate radical and hydroxyl radical. Under the action of sulfate ions, hydroxyl radicals and sulfate radicals, organic matters in the treated organic wastewater are subjected to oxidative degradation.
Along with the continuous rising of the liquid level of the treated medical wastewater in the reaction tank, the medical wastewater overflows from the liquid outlet. The overflowed treated medical wastewater flows through a wastewater detection device, and the wastewater detection device detects the pH value, the SS (suspended solids) content, the COD value, the BOD value and the fecal coliform number of the treated medical wastewater. When the treated medical wastewater does not meet the discharge condition, the third electromagnetic valve is conducted. The treated medical wastewater flows through the water return pipe and flows in from the water inlet of the second water inlet pump. The second water inlet pump is used for leading the inflow treated medical wastewater into the reaction tank through the water leading pipe for secondary treatment. When the treated medical wastewater meets the discharge condition, the third electromagnetic valve is closed, the second electromagnetic valve is opened, and the treated medical wastewater is discharged through the water outlet pipe.

Claims (8)

1. A medical sewage treatment device, which comprises a reaction tank (2) and a reaction module (4); the reaction tank (2) is provided with a liquid inlet and a liquid outlet; the method is characterized in that: the reaction module (4) comprises a motor (4-2), a rotating shaft (4-3) and a catalytic assembly (4-6); the rotating shaft (4-3) is rotationally connected in the inner cavity of the reaction tank (2) and is driven by the motor (4-2); the catalytic assembly (4-6) comprises a plurality of catalytic boxes (4-6-1) and a catalyst (4-6-2); each catalytic box (4-6-1) is fixed on the rotating shaft (4-3) at intervals in sequence; the outer shell of the catalytic box (4-6-1) is in a grid shape; the catalyst (4-6-2) is filled in the catalytic box (4-6-1).
2. A medical sewage treatment apparatus according to claim 1, wherein: the distance between two adjacent catalytic boxes (4-6-1) is 0.5-1.5 m.
3. A medical sewage treatment apparatus according to claim 1, wherein: the catalytic box (4-6-1) is made of transparent materials; the catalytic box (4-6-1) can axially adjust the position along the rotating shaft, and the maximum adjusting distance is 1 m-5 m.
4. A medical sewage treatment apparatus according to claim 1, wherein: the device also comprises a dosing tank (1) and a dosing module (3); the dosing tank (1) is divided into a medicament storage cavity positioned above and a mixing cavity positioned below by a first partition board (3-3); the dosing module (3) comprises a dosing pipe (3-4), a first water inlet pump (3-1) and a dosing pump (3-2); the dosing tube (3-4) is in an inverted T shape, the dosing tube is arranged in the mixing cavity, and the top end of the dosing tube (3-4) is communicated with the bottom of the medicament storage cavity; the bottom of the medicine adding pipe (3-4) is provided with a plurality of medicine distributing openings communicated with the mixing cavity; the dosing pump (3-2) is arranged at the top of the medicament storage cavity; a water inlet is arranged on the mixing cavity; the water inlet is connected to the external treated medical sewage through a first water inlet pump (3-1); the mixing cavity is connected with the liquid inlet of the reaction tank (2) through a liquid delivery pipe (4-4).
5. The medical sewage treatment apparatus according to claim 4, wherein: the dosing tube (3-4) is provided with a first electromagnetic valve (3-5).
6. A medical sewage treatment apparatus according to claim 1, wherein: also comprises a circulation module (5); the circulating module (5) comprises a sewage detection device (5-1), a water outlet pipe (5-2), a water return pipe (5-3), a water pipe (5-4) and a second water inlet pump (5-5); the water outlet pipe (5-2) is arranged at the liquid outlet of the reaction tank; the bottom of the reaction tank (2) is provided with a circulating liquid return port; a sewage detection device (5-1), a circulating branch port and a second electromagnetic valve are sequentially arranged on the water outlet pipe (5-2) along the direction away from the liquid outlet of the reaction tank; the liquid outlet of the reaction tank (2), the circulating branch port on the water outlet pipe (5-2), the water return pipe (5-3), the second water inlet pump (5-5), the water through pipe (5-4) and the circulating liquid return port of the reaction tank (2) are sequentially connected to form a circulating loop.
7. The medical sewage treatment apparatus according to claim 6, wherein: the water return pipe (5-3) is provided with a third electromagnetic valve.
8. A medical sewage treatment apparatus according to claim 1, wherein: the reaction module (4) also comprises a collecting lens (4-5), and the collecting lens (4-5) is arranged at the top of the reaction tank (2).
CN202322089865.7U 2023-08-04 2023-08-04 Medical sewage treatment device Active CN220317448U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322089865.7U CN220317448U (en) 2023-08-04 2023-08-04 Medical sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322089865.7U CN220317448U (en) 2023-08-04 2023-08-04 Medical sewage treatment device

Publications (1)

Publication Number Publication Date
CN220317448U true CN220317448U (en) 2024-01-09

Family

ID=89416357

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322089865.7U Active CN220317448U (en) 2023-08-04 2023-08-04 Medical sewage treatment device

Country Status (1)

Country Link
CN (1) CN220317448U (en)

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