CN113185070A

CN113185070A - Wastewater treatment system and method for flushing treatment of gynecological ward

Info

Publication number: CN113185070A
Application number: CN202110683850.6A
Authority: CN
Inventors: 金洋; 金子; 孙晖; 毛宏伟; 辛璐璐; 崔杨; 刘玥
Original assignee: Henan Cancer Hospital
Current assignee: Henan Cancer Hospital
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-07-30

Abstract

The invention belongs to the technical field of medical wastewater treatment, and discloses a system and a method for treating wastewater for flushing treatment in a gynecological ward, which comprises a treatment tank body, wherein an MBR treatment tank, a pretreatment tank and a waste gas combustion tank are sequentially arranged in the treatment tank body from bottom to top, a control device connected with the treatment tank body is arranged on the outer side of the treatment tank body, a clean water tank communicated with the treatment tank body is also arranged on the outer side of the treatment tank body, a filtering mechanism is arranged on the outer side of the treatment tank body, and a stirring mechanism is arranged in the pretreatment tank. Blocking the infection source.

Description

Wastewater treatment system and method for flushing treatment of gynecological ward

Technical Field

The invention belongs to the technical field of medical wastewater treatment, and particularly relates to a system and a method for treating wastewater for flushing treatment of a gynecological ward.

Background

A large amount of medical wastewater is generated after cleaning a hospital and a gynecological ward, the generated medical wastewater has complex components, contains a large amount of pathogenic microorganisms including bacteria, viruses and harmful organism parasites, and also contains a plurality of toxic and harmful organic and inorganic substances including various medicines, disinfectants and the like, has the characteristics of space pollution, acute transmission, latent infection and the like, can become an important path for spreading epidemic diseases without effective treatment and seriously pollute the environment, medical waste gas is generally generated when being treated in an anaerobic pool and an oxygen burst pool for treating the medical wastewater, the medical waste gas contains aerosol substances of waste gas, bacteria, viruses and harmful substances generated in a sewage pool, and also contains organic substances, the traditional medical wastewater treatment system adopts an exposed sewage treatment device for treatment, and the capability of the hospital for treating the medical wastewater is limited, too much waste water which is not pretreated is concentrated in medical waste water treatment equipment of a hospital, so that the burden of the equipment is increased, meanwhile, waste gas generated by the traditional treatment equipment is not effectively treated and is directly discharged into the atmosphere without blocking the transmission of pathogens, attachments on the inner wall of the equipment cannot be cleaned after the waste water treatment equipment runs for a long time, and the attachments contain a large amount of harmful bacteria and viruses.

Disclosure of Invention

The invention aims to provide a system and a method for treating wastewater for flushing and treating a gynecological ward, which realize closed treatment of wastewater and combustion treatment of generated waste gas through an MBR (membrane bioreactor) treatment tank, a pretreatment tank and a waste gas combustion tank in a treatment tank body, reduce the pressure of hospital medical wastewater treatment, screen out solid garbage through a filtering mechanism, send the solid garbage into medical garbage for harmless treatment, treat waste gas, prevent germs from being transmitted to the environment through air and block an infection source.

Based on the purpose, the invention adopts the following technical scheme: the utility model provides a treatment wastewater treatment system and method are washed in gynaecology ward, includes the treatment tank body, and the internal from the bottom up of treatment tank is equipped with MBR treatment tank, preliminary treatment jar and waste gas burning jar in proper order, its characterized in that: the outer side of the treatment tank body is provided with a control device connected with the treatment tank body, the outer side of the treatment tank body is also provided with a clean water tank communicated with the treatment tank body, the outer side surface of the treatment tank body is provided with a liquid suction mechanism, the liquid suction mechanism is provided with a filtering mechanism, the pretreatment tank body is internally provided with a stirring mechanism, and the treatment tank body comprises a shell.

Preferably, the liquid suction mechanism comprises a liquid collecting pool, a baffle is arranged on the liquid collecting pool, a drainage tube is arranged on the baffle, the liquid suction mechanism further comprises a vacuum tank communicated with the drainage tube, and a vacuum pump communicated with the vacuum tank is arranged on the vacuum tank.

Preferably, the filtering mechanism comprises a shell, a water inlet is formed in one side of the shell, and a slag discharge port is formed in one side of the shell; a filter motor is arranged on the machine shell, a barrel-shaped grating matched with the filter motor is arranged in the machine shell, a helical blade fixedly connected with the barrel-shaped grating is arranged on the barrel-shaped grating, and a sheet-shaped grating with the same shape as the section of the machine shell is arranged at one end of the barrel-shaped grating; one side of the flaky grating is provided with a crushing mechanism, and the crushing mechanism is provided with a water outlet; the crushing mechanism is provided with a crushing motor, one end of the crushing mechanism is provided with a transmission shaft matched with the crushing motor, a rotating rod connected with the transmission shaft is arranged in the crushing mechanism, the rotating rod is provided with at least one crushing cutter group, the crushing cutter group comprises a fixed sleeve fixedly connected with the rotating rod, and the fixed sleeve is provided with a cutter; the crushing cutter group also comprises a bearing connected with the rotating rod shaft, a separation blade fixedly connected with the shell of the crushing mechanism is arranged on the bearing, and the distance between the cutter and the separation blade is 0.1-1 mm; the filtering mechanism further comprises a first water pump communicated with the water outlet, and the first water pump is communicated with the pretreatment tank.

Preferably, the pretreatment tank comprises a tank shell, a heating device is arranged on the tank shell, the distance between the tank shell and the shell of the treatment tank body is 5-10cm, a pipeline area is formed in the area between the tank body and the shell, a stirring mechanism is arranged in the pretreatment tank, a stirring motor matched with the stirring mechanism is arranged on the pretreatment tank, the stirring mechanism comprises a gear fixing disk fixedly connected with the tank body, a rotating rod hole is formed in the middle of the gear fixing disk, at least one fixing block is arranged on the outer side surface of the gear fixing disk, a stirring bearing is arranged on the fixing block, a sliding groove and at least one stirring bearing are arranged on the gear fixing disk, the stirring mechanism further comprises a first gear fixedly connected with the gear fixing disk, a stirrer connected with the stirring bearing shaft and connected with the first gear is arranged on the outer side of the first gear, a second gear connected with the stirrer and in sliding fit with the sliding groove is arranged on the outer side of the stirrer, a stirrer is arranged outside the second gear; the stirrer comprises a stirring gear disc connected with the first gear or the second gear, a stirring rod is arranged on the stirring gear disc, and stirring blades are arranged on the stirring rod.

Preferably, a stirring rod of the stirrer in the middle of the stirring mechanism is provided with a tank shell inner wall cleaning mechanism, the tank shell inner wall cleaning mechanism comprises a hollow cross rod fixedly connected with the stirring rod, and the lower end of the stirring rod is provided with a gas pipe communicated with the hollow cross rod; one end of the hollow cross rod is provided with a linear guide rail communicated with the hollow cross rod, and the linear guide rail is provided with a cleaning brush.

Preferably, an air pump is arranged on the outer side of the treatment tank body, and at least one dosing tank communicated with the pretreatment tank body is arranged on the pretreatment tank; the pretreatment tank is internally provided with a first circulating pump, the pretreatment tank is internally provided with a first aeration mechanism, the first aeration mechanism comprises a first aeration pipe communicated with a water outlet of the first circulating pump, the outer side surface of the first aeration pipe is provided with an air inlet pipe communicated with the first aeration pipe, and a venturi is arranged at the joint of the first aeration pipe and the air inlet pipe.

Preferably, an MBR membrane group is arranged in the MBR treatment tank, a water conveying pipe communicated with the clean water tank is arranged on the MBR membrane group, a four-way valve is arranged on the water conveying pipe, a self-priming pump and a back-flushing pump are respectively arranged on the water conveying pipe between the four-way valve and the clean water tank, a drainage pump is arranged in the clean water tank, and an ultraviolet disinfection lamp group is also arranged in the clean water tank; still be equipped with in the MBR treatment tank with the raceway of pretreatment tank intercommunication, raceway water outlet department is equipped with second aeration mechanism, is equipped with first valve on the raceway, first valve below be equipped with the second gas-supply pipe of air pump intercommunication, second gas-supply pipe and raceway junction are equipped with the venturi tube, raceway water inlet department is equipped with hoisting mechanism in the pretreatment tank, is equipped with pipeline cleaning mechanism in the hoisting mechanism, pipeline cleaning mechanism includes the tubbiness body, is equipped with pulley mechanism on the tubbiness body, this internal cleaning motor that is equipped with of tubbiness, tubbiness body one end is equipped with the wiper mechanism who is connected with the cleaning motor axle, tubbiness body both ends are equipped with rather than fixed connection and with hoisting mechanism haulage rope fixed connection's drive mechanism.

Preferably, be equipped with the sludge pump in the MBR treatment tank, the sludge pump export be equipped with the sludge pipe of pretreatment tank intercommunication, pretreatment tank up end are equipped with the dust removal case, are equipped with the negative pressure pump on the dust removal case, be equipped with on the negative pressure pump with MBR treatment tank and pretreatment tank intercommunication the exhaust tube, the negative pressure pump gas outlet with waste gas burning jar intercommunication, the dust removal incasement be equipped with the suction pump of cross valve intercommunication, be equipped with on the dust removal case with the wet return that MBR treatment tank is linked together is equipped with the second valve on the wet return, be equipped with on the dust removal case with the gas-supply pipe of waste gas burning jar intercommunication.

Preferably, be equipped with at least one waste gas air inlet and fuel air inlet on the waste gas burning jar, be equipped with some firearms in the waste gas burning jar, waste gas air inlet and fuel air inlet arrange around waste gas burning jar annular, be equipped with on the waste gas burning pipe with the gas vent of dust removal case intercommunication, the outer terminal surface is equipped with the amortization mechanism with dust removal case intercommunication on the processing jar body, and amortization mechanism includes the disinfection portion, is equipped with ultraviolet banks on the disinfection portion inner wall, is equipped with the blast pipe in the disinfection portion, and amortization mechanism still includes the absorption portion of blast pipe intercommunication is equipped with in the absorption portion and inhales the sound cotton. The gap between the sound-absorbing cotton and the shell of the silencing mechanism forms an exhaust passage,

a method for treating wastewater from washing treatment of a gynecological ward comprises the following steps:

s1, conveying sewage into a filtering mechanism through a liquid absorbing mechanism to carry out primary filtering on the sewage to filter solid garbage with larger volume, then conveying the solid garbage into a crushing mechanism of the filtering mechanism to crush the small and medium garbage, and conveying the crushed solid garbage into a pretreatment tank of a treatment tank body under the action of a first water pump;

s2, the sewage treated in the step S1 enters a pretreatment tank, the pH value of the sewage is adjusted to 2-3 through a feeding box, and then a Fenton agent is added into the pretreatment tank through another feeding box for Fenton oxidation;

s3, adjusting the pH value of the sewage in the pretreatment tank to 7.0-8.0 through a dosing box after the sewage is treated in the step S2, maintaining the water temperature at 20-40 ℃, adding activated sludge into the pretreatment tank through a sludge pump, standing for 6-12 hours, and carrying out denitrification reaction;

s4, after the treatment in the step S3, adjusting the pH value of the sewage in the pretreatment tank to 8.0-9.0 through a medicine adding box, then starting a stirring mechanism, an air pump and a first circulating pump, aerating the sewage for 8-36 hours, and carrying out nitration reaction;

s5, enabling the sewage treated in the S4 to enter an MBR treatment tank through a water conveying pipe, starting an air pump to aerate the sewage in the MBR treatment tank, effectively retaining bacteria and viruses in the MBR treatment tank, enabling the water passing through an MBR membrane group to enter a clean water tank through a self-priming pump, and enabling the water passing through the MBR membrane group to enter a dust removal tank through a water suction pump;

s6, when the MBR membrane group needs to be backwashed after the clear water processed by the S5 enters the clear water tank, the water in the clear water tank is used for cleaning the MBR membrane group through the backwash pump,

s7, pumping air in the pretreatment tank and the MBR treatment tank used in the treatment in the steps S2, S3, S4, S5 and S6 into a waste gas combustion tank for combustion and disinfection treatment under the action of a negative pressure pump, then sending the waste gas into a dust removal box for cooling and dust removal operation, and finally performing disinfection, noise reduction and emission treatment through a silencing mechanism.

Compared with the prior art, the invention has the following beneficial effects: the invention relates to a method for improving the treatment efficiency by adding a crushing mechanism behind a filtering mechanism to cut and crush small and medium-sized organic matters in sewage, which is convenient for decomposing the organic matters in anaerobic and aerobic stages of microorganisms and improves the treatment efficiency, the stirring mechanism of the invention is provided with 16 stirrers which are annularly arranged, the stirrers adopt propulsion blades, the rotation direction of the middle part is opposite to that of the outer layer and is the same as that of the outermost layer, a venturi tube is additionally arranged on a first aeration mechanism, the mixing of water and gas is improved, the convection effect of sewage is improved, the oxygen content of the water is improved, a nozzle of the first aeration mechanism faces downwards and can blow up sludge at the bottom of a pretreatment tank, the accumulation of the sludge is avoided, the stirring mechanism can clean the inner wall of the tank shell through a tank shell inner wall cleaning mechanism while rotating to prevent pollutants from adhering to the inner wall of the tank shell, and the sewage enters an MBR treatment tank through a water pipe, pipeline wiper mechanism in the water delivery pipe can carry out regular clearance to the raceway, avoids the filth adhesion at the pipeline inner wall, and the waste gas in preliminary treatment jar and the MBR treatment jar burns the disinfection through negative pressure pump suction waste gas burning jar in, then with waste gas entering dust removal case cooling dust removal, at last through amortization mechanism's absorption with fall the back atmospheric air of discharging of making an uproar, reduced the pathogen and passed through the ability of air propagation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the filter mechanism of the present invention;

FIG. 3 is a schematic view of the bucket grid of the present invention;

FIG. 4 is a schematic view of the shredder mechanism of the present invention;

FIG. 5 is a schematic view of a comminuting blade assembly of the present invention;

FIG. 6 is an exploded view of the configuration of the crushing cutter unit of the present invention;

FIG. 7 is a top view of the stirring mechanism of the present invention;

FIG. 8 is a side view of the stirring mechanism of the present invention;

FIG. 9 is a schematic view of the stirring mechanism of the present invention;

FIG. 10 is a schematic view of the gear mounting plate of the present invention;

FIG. 11 is a schematic view of the agitator of the present invention;

FIG. 12 is a schematic view of the inner wall cleaning mechanism of the shell of the present invention;

FIG. 13 is a schematic view of a linear guide of the present invention;

FIG. 14 is a schematic view of the washing brush of the present invention;

FIG. 15 is a top view of a first aeration means of the present invention;

figure 16 is an isometric view of a first aeration mechanism of the present invention;

FIG. 17 is a venturi illustration of the present invention;

FIG. 18 is a schematic view of the pipe cleaning mechanism of the present invention;

FIG. 19 is a schematic view of an exhaust gas burn pot of the present invention;

FIG. 20 is a cross-sectional view of the exhaust gas combustion canister of the present invention;

FIG. 21 is a schematic view of the silencing mechanism of the present invention;

FIG. 22 is a schematic view of a wicking mechanism of the present invention;

fig. 23 is a schematic view of a liquid suction mechanism according to a third embodiment of the present invention.

In the figure: the device comprises a treatment tank body 1, a pretreatment tank 2, an air pump 3, an MBR treatment tank 4, a filtering mechanism 5, a water outlet 50, a bucket-shaped grating 51, a slag discharge port 52, a filtering motor 53, a crushing motor 54, a crushing mechanism 55, a helical blade 56, a water inlet 57, a crushing cutter set 58, a cutter 580, a fixing sleeve 581, a baffle 582, a bearing 583, a transmission shaft 59, a rotating rod 60, an exhaust gas combustion tank 6, an exhaust gas inlet 61, a fuel gas inlet 62, an exhaust port 63, an igniter 64, a sludge pump 7, a second aeration mechanism 8, an MBR membrane set 9, a first valve 10, a pipeline cleaning mechanism 11, a bucket-shaped body 111, a pulley mechanism 112, a cleaning motor 113, a cleaning mechanism 114, a traction mechanism 115, a first circulating pump 12, a stirring mechanism 13, a first gear 131, a stirrer 132, a stirring paddle 1321, a stirring rod 1322, a second gear 133, a gear fixing disc 134, a stirring bearing 135, a sliding groove 136, a water outlet, a water, The device comprises a first water pump 14, a dust removal box 15, a clean water tank 16, a first aeration mechanism 17, a first aeration pipe 171, an air inlet pipe 172, a venturi 173, a back flush pump 18, a tank shell inner wall cleaning mechanism 19, a hollow cross rod 191, a linear guide rail 192, a cleaning brush 193, an air conveying pipe 194, a negative pressure pump 20, a stirring motor 21, an air suction pipe 22, a self-priming pump 23, a dosing tank 24, a control device 25, a drainage pump 26, a silencing mechanism 27, a four-way valve 28, a liquid suction mechanism 29, a liquid collecting tank 291, a baffle 292, a drainage pipe 293, a vacuum tank 294 and a vacuum pump 295.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example one

As shown in fig. 1 and fig. 22, the system and the method for treating wastewater from gynecological ward washing therapy comprise a treatment tank body 1, wherein an MBR treatment tank 4, a pretreatment tank 2 and a waste gas combustion tank 6 are sequentially arranged in the treatment tank body 1 from bottom to top, a control device 25 connected with the treatment tank body 1 is arranged on the outer side of the treatment tank body 1, a clean water tank 16 communicated with the treatment tank body 1 is further arranged on the outer side of the treatment tank body 1, a liquid suction mechanism 29 is arranged on the outer side of the treatment tank body 1, a filtering mechanism 5 is arranged on the liquid suction mechanism 29, a stirring mechanism 13 is arranged in the pretreatment tank 2, and the treatment tank body 1 comprises a shell.

Liquid suction mechanism 29 includes liquid collecting pool 291, is equipped with baffle 292 on liquid collecting pool 291, is equipped with drainage tube 293 on baffle 292, and liquid suction mechanism 29 still includes vacuum tank 294 with drainage tube 293 intercommunication, is equipped with the vacuum pump 295 rather than the intercommunication on vacuum tank 294.

In this embodiment, the sewage is collected by the liquid collecting tank 291 of the liquid absorbing mechanism 29, the baffle 292 prevents the liquid from splashing to the surrounding environment, the vacuum pump 295 operates to pump the air in the vacuum tank 294 away and send the air into the exhaust gas combustion tank 6, the air pressure in the vacuum tank 294 is reduced to pump the water in the liquid collecting tank 291 into the vacuum tank 294, the vacuum tank 294 is provided with an ionization device to pre-sterilize the sewage, after the flushing is finished, the water in the vacuum tank 294 is sent into the filtering mechanism 5 through the drainage tube 293, the sewage is filtered by the filtering mechanism 5 and then enters the pre-treatment tank 2 and the MBR treatment tank 4 for treatment, the exhaust gas generated in the sewage treatment process enters the exhaust gas combustion tank 6 for combustion and sterilization, the treated water enters the clean water tank 16, the treated water in the clean water tank 16 is discharged into a municipal pipe network through a sewer pipeline or used as reclaimed water as hospital environmental sanitation water, the utilization rate of water resources is improved.

As shown in fig. 2-6, the filtering mechanism 5 comprises a casing, a water inlet 57 is arranged on one side of the casing, and a slag discharge port 52 is arranged on one side of the casing; a filtering motor 53 is arranged on the machine shell, a barrel-shaped grating 51 matched with the filtering motor 53 is arranged in the machine shell, a helical blade 56 fixedly connected with the barrel-shaped grating 51 is arranged on the barrel-shaped grating 51, and a sheet-shaped grating with the same shape as the section of the machine shell is arranged at one end of the barrel-shaped grating 51; one side of the flaky grating is provided with a crushing mechanism 55, and the crushing mechanism 55 is provided with a water outlet 50; the crushing mechanism 55 is provided with a crushing motor 54, one end of the crushing mechanism 55 is provided with a transmission shaft 59 matched with the crushing motor 54, the crushing mechanism 55 is internally provided with a rotating rod 60 connected with the transmission shaft 59, the rotating rod 60 is provided with at least one crushing cutter set 58, the crushing cutter set 58 comprises a fixed sleeve 581 fixedly connected with the rotating rod 60, and the fixed sleeve 581 is provided with a cutter 580; the crushing cutter set 58 also comprises a bearing 583 connected with the rotating rod 60 through a shaft, a blocking piece 582 fixedly connected with the shell of the crushing mechanism 55 is arranged on the bearing 583, and the distance between the cutting knife 580 and the blocking piece 582 is 0.1-1 mm; the filtering mechanism 5 further comprises a first water pump 14 communicated with the water outlet 50, and the first water pump 14 is communicated with the pretreatment tank 2.

In this embodiment, sewage enters the filtering mechanism 5 through the water inlet 57 through the sewer pipe, and at the same time, the filtering motor 53 is started, the filtering motor 53 drives the barrel-shaped grating 51 to rotate, the sewage flows into the rear crushing mechanism 55 through the barrel-shaped grating 51, larger solid garbage moves to the slag discharge port 52 under the action of the helical blade 56, falls into an isolating garbage bag prepared in advance, the solid garbage which can pass through the barrel-shaped grating 51 enters the crushing mechanism 55, the crushing motor 54 drives the rotating rod 60 to rotate, and then drives the crushing cutter set 58 to rotate, the cutter 580 of the crushing cutter set 58 rotates along with the rotating rod 60, the baffle 582 does not rotate along with the rotating rod 60, when the cutter 580 moves to the baffle 582, shearing force is generated to cut and crush the solid garbage, the sewage after crushing the solid garbage enters the pretreatment tank 2 through the first water pump 14 through the water outlet 50,

referring to fig. 7-11, the pretreatment tank 2 includes a tank shell, a heating device is disposed on the tank shell, the distance between the tank shell and the shell of the treatment tank 1 is 5-10cm, the area between the tank and the shell forms a pipeline area, a stirring mechanism 13 is disposed in the pretreatment tank 2, a stirring motor 21 matched with the stirring mechanism 13 is disposed on the pretreatment tank 2, the stirring mechanism 13 includes a gear fixing plate 134 fixedly connected with the tank, a rotating rod hole is disposed in the middle of the gear fixing plate 134, at least one fixing block is disposed on the outer side of the gear fixing plate 134, a stirring bearing 135 is disposed on the fixing block, a chute 136 and at least one stirring bearing 135 are disposed on the gear fixing plate 134, the stirring mechanism 13 further includes a first gear 131 fixedly connected with the gear fixing plate 134, a stirrer 132 connected with the stirring bearing 135 through a shaft and connected with the first gear 131 through a gear, a second gear 133 connected with the stirrer 132 through a gear and slidably matched with the chute 136 is disposed on the outer side of the stirrer 132, the outer side of the second gear 133 is provided with a stirrer 132; the stirrer 132 comprises a stirring gear disc in gear connection with the first gear 131 or the second gear 133, a stirring rod 1322 is arranged on the stirring gear disc, and a stirring blade 1321 is arranged on the stirring rod 1322.

In this embodiment, a liquid level sensor, a pH sensor, an oxygen content sensor and a temperature sensor are also installed in the pretreatment tank 2,

in the anaerobic stage, the stirring motor 21 is not started, and the negative pressure pump 20 works to pump the waste gas in the pretreatment tank 2 into the waste gas combustion tank 6 for combustion treatment;

in the aeration stage, the stirring motor 21 is started, the stirring motor 21 drives the stirrer 132 in the middle to rotate, the stirrer 132 in the middle drives the first gear 131 to rotate, the first gear 131 drives the stirrer 132 connected with the gear to rotate in the opposite direction, the second gear 133 is driven to rotate, the second gear 133 drives the stirrer 132 in the outermost periphery to rotate in the opposite direction, the stirring blades 1321 of the stirrer 132 adopt propelling blades, and collision extrusion between water bodies driven by the stirrers 132 which are steered differently is strong, so that the mixing speed of the water bodies is accelerated.

As shown in fig. 12-14, a stirring rod 1322 of the stirrer 132 in the middle of the stirring mechanism 13 is provided with a cleaning mechanism 19 for cleaning the inner wall of the tank shell, the cleaning mechanism 19 for cleaning the inner wall of the tank shell comprises a hollow cross rod 191 fixedly connected with the stirring rod 1322, and the lower end of the stirring rod 1322 is provided with an air pipe 194 communicated with the hollow cross rod 191; one end of the hollow cross bar 191 is provided with a linear guide 192 communicated with the hollow cross bar 19, and the linear guide 192 is provided with a cleaning brush 193.

In this embodiment, organic matters in the sewage in the anaerobic stage are adhered to the inner wall of the tank shell, if the organic matters are not cleaned for a long time, a large amount of organic matters are adhered to the inner wall of the tank shell, so that a large amount of flora are adhered, the sewage treatment effect is reduced, the cleaning mechanism 19 for the inner wall of the tank shell rotates along with the rotation of the stirring mechanism 13 in the aeration stage, the linear guide rail 192 adopts a pneumatic magnetic guide rail, the cleaning brush 193 can be driven to do linear reciprocating motion in the vertical direction, the cleaning of the inner wall of the tank shell by the cleaning brush 193 is facilitated, meanwhile, the cleaning brush 193 does circular motion by itself, and has a high linear velocity, and the adhered organic matters are easily flushed away in the sewage.

As shown in fig. 1, 15, 16, 17 and 18, an air pump 3 is provided outside the treatment tank body 1, and at least one dosing tank 24 communicated therewith is provided on the pretreatment tank 2; a first circulating pump 12 is arranged in the pretreatment tank 2, a first aeration mechanism 17 is arranged in the pretreatment tank 2, the first aeration mechanism 17 comprises a first aeration pipe 171 communicated with a water outlet of the first circulating pump 12, an air inlet pipe 172 communicated with the first aeration pipe 171 is arranged on the outer side surface of the first aeration pipe 171, and a venturi 173 is arranged at the joint of the first aeration pipe 171 and the air inlet pipe 172.

A sludge pump 7 is arranged in the MBR treatment tank 4, an MBR membrane group 9 is arranged in the MBR treatment tank 4, a water conveying pipe communicated with the clean water tank 16 is arranged on the MBR membrane group 9, a four-way valve 28 is arranged on the water conveying pipe, a self-priming pump 23 and a back-flushing pump 18 are respectively arranged on the water conveying pipe between the four-way valve 28 and the clean water tank 16, a drainage pump 26 is arranged in the clean water tank 16, and an ultraviolet disinfection lamp group is also arranged in the clean water tank 16; still be equipped with the raceway with pretreatment tank 2 intercommunication in the MBR treatment tank 4, raceway water outlet department is equipped with second aeration mechanism 8, be equipped with first valve 10 on the raceway, first valve 10 below is equipped with the second air-supply pipe with air pump 3 intercommunication, second air-supply pipe and raceway junction are equipped with venturi 173, raceway water inlet department is equipped with hoisting mechanism in pretreatment tank 2, be equipped with pipeline cleaning mechanism 11 on the hoisting mechanism, pipeline cleaning mechanism 11 includes tubbiness body 111, tubbiness body 111 is equipped with pulley mechanism 112, tubbiness body 111 is equipped with cleaning motor 113, tubbiness body 111 one end is equipped with cleaning mechanism 114 with cleaning motor 113 hub connection, tubbiness body 111 both ends are equipped with rather than fixed connection and with hoisting mechanism traction rope fixed connection's drive mechanism 115.

In this embodiment, the air pump 3 adopts the roots blower, the air pump 3 is communicated with the air inlet pipe 172 and the second air delivery pipe through the three-way valve, and the dosing tank 24 is divided into an alkaline dosing tank, an acidic dosing tank, a fenton dosing tank and the like.

In the anaerobic stage, the three-way valve of the air pump 3 and the switch of the air inlet pipe 172 are closed, the first circulating pump 12 in the pretreatment tank 2 is closed,

in the aeration stage, the three-way valve of the air pump 3 and the switch of the air inlet pipe 172 are opened, the first circulating pump 12 in the pretreatment tank 2 works, the first circulating pump 12 sends the sewage into the first aeration pipe 171 and flows out through the outlet with the downward opening, the outlet of the first aeration pipe 171 passes through the venturi 173, the pressure of the thin pipe water flow in the middle of the venturi 173 is relatively high according to the Bernoulli equation, the gas in the air inlet pipe 172 communicated with the first aeration pipe 171 enters the first aeration pipe 171 under the action of negative pressure and is rapidly mixed with the water to generate a large amount of bubbles, the oxygen content of the sewage is improved, and meanwhile, the sludge at the bottom of the pretreatment tank 2 is blown up by the downward water flow to prevent the sludge accumulation,

after aeration is finished, a first valve 10 on a water pipe is opened, sewage in a pretreatment tank 2 enters an MBR treatment tank 4, when the pretreatment tank 2 is in an anaerobic stage, a sludge pump 7 in the MBR treatment tank 4 works to pump sludge into the pretreatment tank 2, in the anaerobic stage, the sludge can be attached to the pipe wall of the water pipe for a long time and cannot be cleaned to block the water pipe, meanwhile, a large number of floras are easy to accumulate, after aeration is finished, water flow flushes a pipeline cleaning mechanism 11 into the first valve 10 of the water pipe, then the pipeline cleaning mechanism 11 is pulled towards the pipe opening direction under the pulling of a hoisting mechanism, and a cleaning motor 113 works to drive a cleaning mechanism 114 to rotate to clean the pipe wall of the water pipe in the pulling process;

air pump 3 impresses gas to second aeration mechanism 8 through the second gas-supply pipe, and sewage is in the clear water jar 16 through self priming pump 23 suction after the MBR membrane group 9 is handled, and when needing to wash MBR membrane group 9, with backwash pump 18 start take out the clear water after handling from clear water jar 16 and carry out the back flush to MBR membrane group 9.

As shown in fig. 1, fig. 19, fig. 20 and fig. 21, a sludge pump 7 is arranged in the MBR treatment tank 4, a sludge pipe communicated with the pretreatment tank 2 is arranged at the outlet of the sludge pump 7, a dust removal tank 15 is arranged on the upper end surface of the pretreatment tank 2, a negative pressure pump 20 is arranged on the dust removal tank 15, an air suction pipe 22 communicated with the MBR treatment tank 4 and the pretreatment tank 2 is arranged on the negative pressure pump 20, the air outlet of the negative pressure pump 20 is communicated with the waste gas combustion tank 6, a water suction pump communicated with a four-way valve 28 is arranged in the dust removal tank 15, a water return pipe communicated with the MBR treatment tank 4 is arranged on the dust removal tank 15, a second valve is arranged on the water return pipe, and a gas.

Be equipped with at least one waste gas air inlet 61 and fuel air inlet 62 on the waste gas burning jar 6, be equipped with some firearm 64 in the waste gas burning jar 6, waste gas air inlet 61 and fuel air inlet 62 arrange around waste gas burning jar 6 annular, be equipped with the gas vent 63 with dust removal case 15 intercommunication on the waste gas burning pipe 6, the outer terminal surface is equipped with the amortization mechanism 27 with dust removal case 15 intercommunication on the processing jar body 1, amortization mechanism 27 includes disinfection portion 271, be equipped with ultraviolet banks 274 on the disinfection portion 271 inner wall, be equipped with blast pipe 272 in the disinfection portion 271, amortization mechanism 27 still includes the absorption portion of blast pipe 272 intercommunication, be equipped with in the absorption portion and inhale the sound cotton 273. The gap between the sound absorbing cotton 273 and the housing of the noise reduction mechanism 27 constitutes an exhaust passage.

In this embodiment, the generated gas in the MBR treatment tank 4 stage is pumped out the waste gas in the pretreatment tank 2 to the waste gas combustion tank 6 for combustion treatment through the work of the negative pressure pump 20, then the combusted waste gas enters the dust removal tank 15 for cooling and dust removal treatment, the water treated by the MBR membrane group 9 is pumped into the dust removal tank 15 by the water suction pump in the dust removal tank 15, the waste water after waste gas treatment returns to the MBR treatment tank 4 through the water return pipe for treatment again, the waste gas after the dust removal tank 15 enters the disinfection part 271 of the silencing mechanism 27 for speed reduction disinfection, and then is discharged through the gap between the sound absorbing cotton 273 and the shell of the silencing mechanism 27, and the noise generated in the gas movement process absorbs part of the sound energy through the sound absorbing cotton 273, thereby reducing the noise.

Example two

A treatment method of wastewater for flushing treatment of a gynecological ward comprises the following steps:

s1, conveying the sewage generated in the gynecological ward into a filtering mechanism 5 through a liquid suction mechanism for primary filtering to filter solid garbage with larger volume, then conveying the solid garbage into a crushing mechanism 55 of the filtering mechanism 5 for crushing small and medium garbage, and then conveying the crushed solid garbage into a pretreatment tank 2 of a treatment tank body 1 under the action of a first water pump 14;

s2, the sewage treated in the step S1 enters a pretreatment tank 2, the pH value of the sewage is adjusted to 2-3 through a feeding box 24, and then a Fenton medicament is added into the pretreatment tank 2 through another feeding box 14 for Fenton oxidation;

s3, adjusting the pH value of the sewage in the pretreatment tank 2 to 7.0-8.0 through the sewage feeding box 24 after the sewage is treated in the step S2, maintaining the water temperature at 20-40 ℃, adding activated sludge into the pretreatment tank 2 through the sludge pump 7, standing for 6-12 hours, and carrying out denitrification reaction;

s4, after the treatment in the step S3, adjusting the pH value of the sewage in the pretreatment tank 2 to 8.0-9.0 through the medicine adding box 24, then starting the stirring mechanism 13, the air pump 3 and the first circulating pump 12, aerating the sewage for 8-36 hours, and carrying out nitration reaction;

s5, enabling the sewage treated in the S4 to enter an MBR treatment tank 4 through a water delivery pipe, starting an air pump 3 to aerate the sewage in the MBR treatment tank 4, effectively retaining bacteria and viruses in the MBR treatment tank 4, enabling the water passing through an MBR membrane group 9 to enter a clean water tank 16 through a self-priming pump 23, and enabling the water passing through the MBR membrane group 9 to enter a dust removal box 15 through a water suction pump;

s6, when the MBR membrane group 9 needs to be backwashed after the clear water processed by the S5 enters the clear water tank 16, the water in the clear water tank 16 is used for cleaning the MBR membrane group 9 through the backwash pump 18,

s7, pumping the air in the pretreatment tank 2 and the MBR treatment tank 4 used in the treatment in the steps S2, S3, S4, S5 and S6 into the waste gas combustion tank 6 for combustion and disinfection treatment under the action of the negative pressure pump 20, then sending the waste gas into the dust removal box 15 for cooling and dust removal operation, and finally performing disinfection, noise reduction and emission treatment through the silencing mechanism 27.

The operating principle of the invention is that sewage generated in the gynecological washing process is collected and filtered through a liquid suction mechanism and a filtering mechanism, impurities are filtered, larger organic tissues are cut and crushed, then the sewage entering a pretreatment tank is oxidized by Fenton oxidation to oxidize most organic matters, then the sewage is nitrified and denitrified by anaerobism and aerobism to treat N, P element in the sewage, then waste gas generated in the sewage treatment process is incinerated and disinfected by a fan to prevent germs from diffusing into the environment, most germs are intercepted in an MBR treatment tank through the treatment of a biomembrane, and the permeated water reaches the discharge standard.

EXAMPLE III

As shown in figure 23, compared with the first embodiment, the liquid absorbing mechanism 29 comprises a liquid collecting tank 291, the liquid collecting tank 291 is communicated with a water inlet 57 of a filtering mechanism 5, a filtering motor 53 of the filtering mechanism 5 drives a barrel-shaped grid 51 and a crushing cutter set 58 to work, a vacuum pump 295 is communicated with a crushing mechanism 55,

in this embodiment, the vacuum pump 295 extracts the air in the crushing mechanism 55 to make the air pressure in the barrel-shaped grating 51 section of the filtering mechanism 5 and the crushing cutter set 58 section of the crushing mechanism 55 lower, a large amount of wastewater generated by the patient in the process of flushing the gynecological ward enters the barrel-shaped grating 51 section of the filtering mechanism 5 through the liquid collecting tank 291, the filtering motor 53 drives the barrel-shaped grating 51 and the crushing cutter set 58 to rotate, the sewage is filtered and the small and medium-sized organic matters in the sewage are cut and crushed, the decomposition of the organic matters is facilitated, and the equipment is reduced.

It should be noted that, for those skilled in the art, many changes and modifications can be made without departing from the spirit and scope of the invention, and the invention is not to be considered limited to the embodiments illustrated in the drawings.

Claims

1. The utility model provides a treatment wastewater treatment system and method are washed in gynaecology ward, includes the treatment tank body, and the internal from the bottom up of treatment tank is equipped with MBR treatment tank, preliminary treatment jar and waste gas burning jar in proper order, its characterized in that: the outer side of the treatment tank body is provided with a control device connected with the treatment tank body, the outer side of the treatment tank body is also provided with a clean water tank communicated with the treatment tank body, the outer side surface of the treatment tank body is provided with a liquid suction mechanism, the liquid suction mechanism is provided with a filtering mechanism, the pretreatment tank body is internally provided with a stirring mechanism, and the treatment tank body comprises a shell.

2. The wastewater treatment system for gynecological ward washing treatment according to claim 1, wherein: the liquid suction mechanism comprises a liquid collecting pool, a baffle is arranged on the liquid collecting pool, a drainage tube is arranged on the baffle, the liquid suction mechanism further comprises a vacuum tank communicated with the drainage tube, and a vacuum pump communicated with the vacuum tank is arranged on the vacuum tank.

3. The wastewater treatment system for gynecological ward washing treatment according to claim 1, wherein: the filtering mechanism comprises a shell, a water inlet is formed in one side of the shell, and a slag discharge port is formed in one side of the shell; a filter motor is arranged on the machine shell, a barrel-shaped grating matched with the filter motor is arranged in the machine shell, a helical blade fixedly connected with the barrel-shaped grating is arranged on the barrel-shaped grating, and a sheet-shaped grating with the same shape as the section of the machine shell is arranged at one end of the barrel-shaped grating; one side of the flaky grating is provided with a crushing mechanism, and the crushing mechanism is provided with a water outlet; the crushing mechanism is provided with a crushing motor, one end of the crushing mechanism is provided with a transmission shaft matched with the crushing motor, a rotating rod connected with the transmission shaft is arranged in the crushing mechanism, the rotating rod is provided with at least one crushing cutter group, the crushing cutter group comprises a fixed sleeve fixedly connected with the rotating rod, and the fixed sleeve is provided with a cutter; the crushing cutter group also comprises a bearing connected with the rotating rod shaft, a separation blade fixedly connected with the shell of the crushing mechanism is arranged on the bearing, and the distance between the cutter and the separation blade is 0.1-1 mm; the filtering mechanism further comprises a first water pump communicated with the water outlet, and the first water pump is communicated with the pretreatment tank.

4. The wastewater treatment system for gynecological ward washing treatment according to claim 2, wherein: the pretreatment tank comprises a tank shell, a heating device is arranged on the tank shell, the distance between the tank shell and the shell of the treatment tank body is 5-10cm, a pipeline area is formed in the area between the tank body and the shell, an agitating mechanism is arranged in the pretreatment tank, an agitating motor matched with the agitating mechanism is arranged on the pretreatment tank, the agitating mechanism comprises a gear fixing disk fixedly connected with the tank body, a rotating rod hole is formed in the middle of the gear fixing disk, at least one fixing block is arranged on the outer side surface of the gear fixing disk, an agitating bearing is arranged on the fixing block, a sliding groove and at least one agitating bearing are arranged on the gear fixing disk, a first gear fixedly connected with the gear fixing disk is arranged on the outer side of the first gear, an agitator connected with the agitating bearing shaft and the first gear is arranged on the outer side of the agitator, a second gear connected with the agitator and in sliding fit with the sliding groove is arranged on the outer side of the agitator, a stirrer is arranged outside the second gear; the stirrer comprises a stirring gear disc connected with the first gear or the second gear, a stirring rod is arranged on the stirring gear disc, and stirring blades are arranged on the stirring rod.

5. The wastewater treatment system for gynecological ward washing treatment according to claim 3, wherein: a stirring rod of a stirrer in the middle of the stirring mechanism is provided with a tank shell inner wall cleaning mechanism, the tank shell inner wall cleaning mechanism comprises a hollow cross rod fixedly connected with the stirring rod, and the lower end of the stirring rod is provided with a gas delivery pipe communicated with the hollow cross rod; one end of the hollow cross rod is provided with a linear guide rail communicated with the hollow cross rod, and the linear guide rail is provided with a cleaning brush.

6. The wastewater treatment system for gynecological ward washing treatment according to claim 4, wherein: an air pump is arranged on the outer side of the treatment tank body, and at least one dosing tank communicated with the pretreatment tank body is arranged on the pretreatment tank; the pretreatment tank is internally provided with a first circulating pump, the pretreatment tank is internally provided with a first aeration mechanism, the first aeration mechanism comprises a first aeration pipe communicated with a water outlet of the first circulating pump, the outer side surface of the first aeration pipe is provided with an air inlet pipe communicated with the first aeration pipe, and a venturi is arranged at the joint of the first aeration pipe and the air inlet pipe.

7. The wastewater treatment system for gynecological ward washing treatment according to claim 5, wherein: an MBR membrane group is arranged in the MBR treatment tank, a water conveying pipe communicated with the clean water tank is arranged on the MBR membrane group, a four-way valve is arranged on the water conveying pipe, a self-priming pump and a back-flushing pump are respectively arranged on the water conveying pipe between the four-way valve and the clean water tank, a drainage pump is arranged in the clean water tank, and an ultraviolet disinfection lamp group is also arranged in the clean water tank; still be equipped with in the MBR treatment tank with the raceway of pretreatment tank intercommunication, raceway water outlet department is equipped with second aeration mechanism, is equipped with first valve on the raceway, first valve below be equipped with the second gas-supply pipe of air pump intercommunication, second gas-supply pipe and raceway junction are equipped with the venturi tube, raceway water inlet department is equipped with hoisting mechanism in the pretreatment tank, is equipped with pipeline cleaning mechanism in the hoisting mechanism, pipeline cleaning mechanism includes the tubbiness body, is equipped with pulley mechanism on the tubbiness body, this internal cleaning motor that is equipped with of tubbiness, tubbiness body one end is equipped with the wiper mechanism who is connected with the cleaning motor axle, tubbiness body both ends are equipped with rather than fixed connection and with hoisting mechanism haulage rope fixed connection's drive mechanism.

8. The wastewater treatment system for gynecological ward washing treatment according to claim 6, wherein: be equipped with the sludge pump in the MBR treatment tank, the sludge pump export be equipped with the sludge pipe of pretreatment tank intercommunication, pretreatment tank up end is equipped with the dust removal case, is equipped with the negative pressure pump on the dust removal case, be equipped with on the negative pressure pump with the MBR treatment tank and the exhaust tube of pretreatment tank intercommunication, the negative pressure pump gas outlet with waste gas burning jar intercommunication is equipped with the suction pump with the cross valve intercommunication in the dust removal case, be equipped with on the dust removal case with the wet return that the MBR treatment tank is linked together is equipped with the second valve on the wet return, be equipped with on the dust removal case with the gas-supply pipe of waste gas burning jar intercommunication.

9. The wastewater treatment system for gynecological ward washing treatment according to claim 7, wherein: be equipped with at least one waste gas air inlet and fuel air inlet on the waste gas burning jar, be equipped with some firearms in the waste gas burning jar, waste gas air inlet and fuel air inlet are arranged around waste gas burning jar annular, be equipped with on the waste gas burning pipe with the gas vent of dust removal case intercommunication, the outer terminal surface is equipped with the amortization mechanism with dust removal case intercommunication on the processing jar body, and amortization mechanism includes the disinfection portion, is equipped with ultraviolet banks on the disinfection portion inner wall, is equipped with the blast pipe in the disinfection portion, and amortization mechanism still includes the absorption portion of blast pipe intercommunication is equipped with in the absorption portion and inhales the sound cotton.

10. The gap between the sound-absorbing cotton and the shell of the silencing mechanism forms an exhaust passage,

a method of flushing a wastewater treatment system for treatment of gynaecological wards according to any of claims 1-9, characterised in that: a method for treating wastewater from washing treatment of a gynecological ward comprises the following steps: