CN113072153A

CN113072153A - Medical waste water is from mixing purification unit

Info

Publication number: CN113072153A
Application number: CN202110628650.0A
Authority: CN
Inventors: 李健; 李军; 杨建�; 张清云; 耿政; 刘锡尧
Original assignee: Beijing Water Resources Development Co ltd
Current assignee: Beijing Water Resources Development Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-07-06

Abstract

The invention discloses a medical wastewater self-mixing purification treatment device, which is used for emergency treatment of medical wastewater and comprises a coagulation area, a flocculation area, a reaction area, a precipitation area and an external pipeline, wherein the coagulation area, the flocculation area, the reaction area and the precipitation area are sequentially arranged from front to back, and medical wastewater is injected through the external pipeline and is discharged after being sequentially treated through the coagulation area, the flocculation area, the reaction area and the precipitation area. According to the invention, the medical wastewater and the medicament are mixed and stirred by utilizing the power of the water flow when the medical wastewater enters the device, so that the purpose that no power device is arranged in the device is realized, and the failure rate caused by additionally arranging equipment is reduced; the backflow pipe is connected with the water inlet pipe through the backflow valve, external power backflow free of sludge flocs is achieved through water flow power, and the equipment investment is reduced while the sludge flocs are guaranteed.

Description

Medical waste water is from mixing purification unit

Technical Field

The invention relates to the technical field of medical wastewater treatment, in particular to a medical wastewater self-mixing purification treatment device.

Background

The discharge of medical wastewater which does not reach the standard is always an important factor for harming the environment. With the progress of society and the development of technology, how to more reasonably and effectively treat medical wastewater becomes a crucial topic in the sewage treatment industry.

The traditional medical wastewater treatment process mainly comprises coagulating sedimentation and disinfection, but the process has the disadvantages of low reaction speed, low sludge collection efficiency and poor purification effect of effluent, and simultaneously cannot meet the discharge requirements of government departments along with the continuous improvement of the sewage discharge standard of hospitals, so that most of the wastewater of hospitals begin to use the treatment process of biochemical treatment and disinfection at present, but the process also has partial problems: firstly, the occupied area is large, the required equipment and facilities are various, and the space utilization rate is low; secondly, the reaction speed is relatively slow, and the purification can be completed only by a certain time period.

Although products such as high-efficiency clarification equipment, sewage treatment integrated equipment and the like are produced in the market at present, the problems of large occupied area and low reaction speed are solved, the equipment composition still has the aspect to be optimized, and the method is embodied in three links: firstly, in the stirring step, a mechanical stirring device is needed to fully mix and react the medicament and the sewage; in the sludge floc reflux link, an equipment sludge reflux pump is needed to realize the contact and adsorption of flocs and raw water impurity particles; and thirdly, a disinfection link, in which liquid chlorine, chlorine dioxide and other chemical agents or ozone are required to be used for disinfection.

The specific problems of the above links are as follows:

the mechanical stirring link has the following problems: firstly, the stirrer is large in size, the utilization rate of the internal space of the equipment is reduced, the mechanical maintenance and repair needs to be carried out manually, and certain dangerousness is realized; secondly, electrical control points are added by mechanical stirring, and the power consumption and the failure rate of the whole system are improved; thirdly, water flow and the stirring rod rotate concentrically under the stirring of the mechanical stirrer, the flow state is relatively stable, only turbulence exists at the stirring impeller, and if a good stirring effect is achieved, the stirring time needs to be increased, so that the stirring efficiency is low; fourthly, the floc structure is easily scattered by the paddles, so that the coagulation effect is influenced, and the treatment efficiency is further reduced.

The sludge floc backflow link has the following problems: firstly, because the front liquid level and the rear liquid level of the coagulation tank and the sedimentation tank are consistent, if a sludge reflux pump needs to be additionally arranged for refluxing, not only are electrical control points increased, but also the power consumption is increased; secondly, a reflux pump is added, and the floc structure of the reflux sludge is broken under the action of a water pump impeller, so that the contact and adsorption capacity of the floc and impurities in the raw water is influenced, the action of a coagulant is limited, and the clarification effect of the effluent is reduced.

The following problems exist in the disinfection process: firstly, chemical agents are unstable and have strict requirements on the processes of transportation, storage, use and the like; secondly, the ozone equipment has high investment, complex operation and high operation cost.

The invention provides a medical wastewater self-mixing purification treatment device which solves the problems.

Disclosure of Invention

The invention provides a medical wastewater self-mixing purification treatment device, which has the characteristics of unpowered hydraulic mixing and stirring and unpowered sludge backflow, ensures the treatment effect and efficiency of medical wastewater, has strong treatment capacity due to the device, has low indexes of suspended matters and turbidity of effluent of a sedimentation tank, meets the strict condition of ultraviolet disinfection, and ensures the treatment effect and efficiency of medical wastewater.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a medical wastewater self-mixing purification treatment device is used for emergency treatment of medical wastewater and comprises a coagulation area, a flocculation area, a reaction area, a precipitation area and an external pipeline, wherein the coagulation area, the flocculation area, the reaction area and the precipitation area are sequentially arranged from front to back;

external pipeline includes inlet tube, dosing pipe and back flow, advance water piping connection in the district that congeals, the dosing pipe is connected with the district that congeals and flocculation district respectively, the back flow is established in the outside to be connected with the settling zone, the end-to-end connection of back flow is on the inlet tube.

Furthermore, the coagulation area comprises a coagulation bin and a mixing flow guide pipe, the coagulation bin is divided into a coagulation mixing bin and a coagulation reaction bin by a partition plate, the coagulation reaction bin is arranged on the left side and the right side of the coagulation mixing bin, and the mixing flow guide pipe is vertically arranged in the coagulation mixing bin;

the inlet tube is connected with the coagulation mixing bin, and the water outlet of the inlet tube is located at the bottom end of the mixing flow guide tube.

Furthermore, the flocculation area comprises a flocculation bin and a mixing flow guide pipe, the flocculation bin is separated from the coagulation bin through a partition plate, the flocculation bin is connected with the coagulation reaction bin through a coagulation water outlet pipe, and the mixing flow guide pipe is vertically arranged in the flocculation bin;

the water inlet of the coagulation water outlet pipe is connected with the coagulation reaction bin, and the water outlet of the coagulation water outlet pipe is located at the bottom end of the mixing flow guide pipe in the flocculation bin.

Furthermore, the reaction area is communicated with the flocculation area through a water passing opening, a guide plate is arranged in the reaction area, the guide plate and the wall of the flocculation bin form a guide groove, and the water passing opening is formed in the wall of the flocculation bin and located at the bottom of the guide groove.

Further, the settling zone comprises a settling zone, a filtering zone and an overflow zone, the settling zone, the filtering zone and the overflow zone are sequentially arranged from bottom to top, the settling zone is communicated with the reaction zone, and a wastewater outlet pipe is arranged on the overflow zone.

Furthermore, a water through hole is formed in a partition plate between the coagulation mixing bin and the coagulation reaction bin, and the water through hole is located at the bottom of the coagulation mixing bin; and the water inlet of the coagulation water outlet pipe is connected to the top of the coagulation reaction bin.

Further, add the pencil including adding pencil one and adding pencil two, the delivery port department at the inlet tube is connected to the exit end that adds pencil one, the delivery port department at the outlet pipe that thoughtlessly congeals is connected to the exit end that adds pencil two.

Furthermore, the starting end of the return pipe is connected with the mud accumulation hopper, the sedimentation area is communicated with the return pipe through a mud valve, the tail end of the return pipe is connected with the water inlet pipe through a jet valve, and the water inlet pipe is provided with external power; the backflow pipe is provided with a transparent section.

Further, the filtering area comprises inclined plates and water filtering plates, and the inclined plates are arranged below the water filtering plates at intervals.

Furthermore, the mixing flow guide pipe is arranged in the middle of the inner cavities of the coagulation mixing bin and the flocculation bin in a hanging manner; mix the honeycomb duct and include direct current section and water conservancy diversion horn mouth, water conservancy diversion horn mouth sets up the upper and lower both ends at direct current section mutually away from the body.

The invention has the following beneficial effects:

the medical wastewater and the medicament are mixed and stirred by utilizing the power of the water flow when the medical wastewater enters the device, so that the aim of not arranging a power device in the device is fulfilled, the failure rate caused by additionally arranging equipment is reduced, and the effect of a mixing reaction is improved; the reflux pipe is connected with the water inlet pipe through the reflux valve, and the reflux of the sludge flocs without external power is realized by using water flow power, so that the sludge flocs are ensured, and the equipment investment is reduced;

the mixing guide pipe is arranged under the action of water flow power, so that wastewater in the bin forms annular backflow, the wastewater and the medicament are fully mixed and stirred by utilizing the annular backflow, the purpose of mixing the wastewater without setting power stirring is realized, the mixing effect is improved, and the number of equipment, the operation cost and the failure rate are reduced;

mix the storehouse with thoughtlessly congeal and react the storehouse and constitute the district that thoughtlessly congeals, realize adding medicine of waste water and mix and intensive mixing in cyclic annular backward flow, carry out the intensive reaction in the slow flow in thoughtlessly congealing the reaction storehouse, realize stirring earlier through the different velocity of flow and then react, guarantee the abundant processing of waste water.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic vertical cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic top view of the overall structure of the present invention;

FIG. 4 is a front view of the overall structure of the present invention;

FIG. 5 is a schematic cross-sectional view of a coagulation zone of the present invention;

FIG. 6 is a schematic cross-sectional view of a flocculation zone of the present invention;

FIG. 7 is a schematic cross-sectional view of a settling zone of the present invention.

Reference numerals: 1-coagulation area, 11-mixing draft tube, 12-coagulation mixing bin, 121-water passing hole, 13-coagulation reaction bin, 2-flocculation area, 21-flocculation bin, 211-coagulation water outlet pipe, 212-water passing hole, 3-reaction area, 31-guide plate, 4-sedimentation area, 41-sedimentation area, 42-filtration area, 43-overflow area, 431-waste water outlet pipe, 5-external pipeline, 51-water inlet pipe, 52-dosing pipe, 521-dosing pipe I, 522-dosing pipe II and 53-reflux pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

As shown in figures 1, 2 and 3, the medical wastewater self-mixing purification treatment device is used for emergency treatment of medical wastewater and comprises a coagulation area 1, a flocculation area 2, a reaction area 3, a precipitation area 4 and an external pipeline 5, wherein the coagulation area 1, the flocculation area 2, the reaction area 3 and the precipitation area 4 are sequentially arranged from front to back, medical wastewater is injected through the external pipeline 5, firstly enters the coagulation area 1 to be subjected to chemical adding mixing, stirring and coagulation reaction, then enters the flocculation area 2 to be subjected to chemical adding mixing, stirring and flocculation reaction, then enters the reaction area 3 to be subjected to adsorption and aggregation reaction in stable flow state water flow, then enters the precipitation area 4 to be subjected to solid-liquid separation, sludge is deposited and wastewater is filtered, then overflows and is discharged into a municipal pipe network after being disinfected.

As shown in FIGS. 1 and 2, the circulation process of the medical wastewater in the treatment device of the invention is as follows: medical wastewater is injected into the coagulation mixing bin 12 of the coagulation area 1 from the water inlet pipe 51 through the external pipeline 5 provided with an external power source, when the wastewater is injected, annular backflow is formed in the coagulation mixing bin 12 due to the structural characteristics of the mixing draft tube 11 and the injection position of the wastewater, a coagulation reagent is injected into the coagulation mixing bin 12 through the first dosing pipe 521 when the wastewater is injected, and the wastewater and the coagulation reagent are fully mixed and stirred in the annular backflow;

the wastewater mixed and stirred with the coagulating agent enters the coagulation reaction bin 13 through the water through holes 121 at the bottom of the coagulation mixing bin 12, the water flow in the coagulation reaction bin 13 is slow and stable, and the coagulation reaction of the wastewater and the coagulating agent is realized;

after coagulation reaction, the wastewater enters the flocculation bin 21 through a coagulation water outlet pipe 211 at the top of the coagulation reaction bin 13, and a flocculation reagent is injected into the flocculation bin 21 through a second dosing pipe 522 while the wastewater is injected, and is fully mixed and stirred in annular backflow in the flocculation bin 21;

the wastewater mixed and stirred with the flocculating agent enters the reaction zone 3 through the water outlet 212, flocculation reaction is carried out in the reaction zone 3, and impurities in the wastewater and the agent are subjected to secondary reaction to form a larger floc structure so as to realize accelerated sedimentation;

the wastewater after reaction enters a settling zone 4, sludge in the wastewater is relatively heavy and settles to a settling zone 41, the wastewater after impurity removal enters an overflow zone 43 through a filtering zone 42, and is discharged from a wastewater outlet pipe 431 in the overflow zone 43, so that the whole wastewater purification treatment process is completed;

the wastewater after physical purification treatment enters a disinfection device and is disinfected by ultraviolet rays, and then all purification and disinfection processes are completed and the wastewater is discharged into a municipal pipe network.

As shown in fig. 1, 2, 3, 4, and 6, the external pipeline 5 includes a water inlet pipe 51, a dosing pipe 52, and a return pipe 53, the water inlet pipe 51 is connected to the coagulation zone 1, the dosing pipe 52 is connected to the coagulation zone 1 and the flocculation zone 2, the return pipe 53 is connected to the sedimentation zone 4, and the end of the return pipe 53 is connected to the water inlet pipe 51.

Preferably, be equipped with external power supply on the inlet tube 51, utilize external power supply to pour into waste water into and congeal in district 1, when waste water was poured into, the velocity of flow of waste water self was as whole purification treatment's initial power, realized not setting up agitating unit in purification treatment device and still can carry out the purpose that intensive mixing mixes, kinetic energy that waste water self has made it form the annular backward flow that the velocity of flow is faster in thoughtlessly congealing mixing bunker 12 and flocculation storehouse 21, realizes the intensive mixing of waste water and medicament.

As shown in fig. 1, 2 and 5, further, the coagulation area 1 includes a coagulation chamber and a mixing draft tube 11, the coagulation chamber is divided into a coagulation mixing chamber 12 and a coagulation reaction chamber 13 by a partition plate, the coagulation reaction chamber 13 is disposed on the left and right sides of the coagulation mixing chamber 12, and the mixing draft tube 11 is vertically disposed in the coagulation mixing chamber 12. The mixing of the wastewater and the coagulant is performed in the coagulation mixing bin 12, and the reaction of the wastewater and the coagulant is performed in the coagulation reaction bin 13.

The inlet tube 51 is connected with the coagulation mixing bin 12, and the water outlet of the inlet tube 51 is positioned at the bottom end of the mixing guide tube 11.

As shown in fig. 1, 2 and 6, further, the flocculation area 2 includes a flocculation bin 21 and a mixing flow guide pipe 11, the flocculation bin 21 is separated from the coagulation bin by a partition plate, the flocculation bin 21 is connected with the coagulation reaction bin 13 by a coagulation water outlet pipe 211, and the mixing flow guide pipe 11 is vertically arranged in the flocculation bin 21. The flocculation bin 21 is used for mixing and stirring the wastewater and the flocculation reagent.

The water inlet of the coagulation water outlet pipe 211 is connected with the coagulation reaction bin 13, and the water outlet of the coagulation water outlet pipe 211 is positioned at the bottom end of the mixing flow guide pipe 11 in the flocculation bin 21.

Preferably, a spoiler is arranged in the mixing draft tube 11. The spoiler in the mixing draft tube 11 disturbs the flow direction of the wastewater to form turbulent flow, thereby realizing the full mixing and stirring of the wastewater and the medicament.

The reason for realizing unpowered stirring in the invention is that the kinetic energy of water flow during the injection of wastewater and the turbulent flow formed when the flowing wastewater passes through the mixing draft tube 11, so that the wastewater in the device realizes automatic stirring and the mixing with the medicament.

As shown in fig. 2 and 6, further, the reaction area 3 is communicated with the flocculation area 2 through a water passing opening 212, a flow guide plate 31 is arranged in the reaction area 3, the flow guide plate 31 and the wall of the flocculation bin 21 form a flow guide groove, and the water passing opening 212 is arranged on the wall of the flocculation bin 21 and is located at the bottom of the flow guide groove. The water flow in the reaction zone 3 is slow, the coagulating agent and the flocculating agent fully react with the wastewater in the reaction zone 3, the suspended particles in the wastewater are gathered and enlarged to form flocs with larger flocs, and the flocs are settled downwards and finally realize the purpose of solid-liquid separation.

As shown in fig. 2 and 7, further, the settling zone 4 includes a settling zone 41, a filtering zone 42 and an overflow zone 43, the settling zone 41, the filtering zone 42 and the overflow zone 43 are sequentially arranged from bottom to top, the settling zone 41 is communicated with the reaction zone 3, and the overflow zone 43 is provided with an overflow weir and a wastewater outlet pipe 431. The flocs in the wastewater are accumulated and deposited in the deposition area 41, and the wastewater enters the overflow area 43 after being filtered by the filtering area 42, flows out of the overflow weir and is discharged through the wastewater outlet pipe 431.

As shown in fig. 5, further, a water through hole 121 is formed in a partition plate between the coagulation mixing bin 12 and the coagulation reaction bin 13, and the water through hole 121 is located at the bottom of the coagulation mixing bin 12; the water inlet of the coagulation water outlet pipe 211 is connected to the top of the coagulation reaction bin 13.

As shown in fig. 1, 2 and 4, the dosing pipe 52 further includes a first dosing pipe 521 and a second dosing pipe 522, an outlet end of the first dosing pipe 521 is connected to a water outlet of the water inlet pipe 51, and an outlet end of the second dosing pipe 522 is connected to a water outlet of the coagulation water outlet pipe 211.

As shown in fig. 1 and 3, further, the initial end of the return pipe 53 is connected to a mud collecting hopper, the sedimentation area 41 is communicated with the return pipe 53 through a mud valve, the tail end of the return pipe 53 is connected to the water inlet pipe 51 through a jet valve, and the water inlet pipe 51 is provided with an external power; the return pipe 53 is provided with a transparent section.

The return pipe 53 is connected to the water inlet pipe 51 through a jet valve, and the flocculent deposit mud in the deposit area 41 is returned to the coagulation area 1 by using a high flow rate when the wastewater is injected. Impurities in the wastewater need to be adsorbed by solid matters as attachments in the sedimentation process, and flocculent sludge flows back to the coagulation zone 1 as impurity attachments, so that the impurity gathering efficiency can be greatly improved; the method adopts siphon jet flow to reflux the flocculent sludge, so that the sludge can keep a larger flocculent structure as much as possible, and the flocculent sludge has stronger aggregation and adsorption effects.

Further, the filtering area 42 includes inclined plates and water filtering plates, and the inclined plates are arranged below the water filtering plates at intervals. The inclined plates arranged at intervals are used for playing a role of stabilizing water flow, so that purified water can stably and slowly enter the overflow area 43 from the filtering area 42.

As shown in fig. 5 and 6, further, the mixing draft tube 11 is suspended in the middle of the inner cavities of the coagulation mixing bin 12 and the flocculation bin 21; mix honeycomb duct 11 including direct current section and water conservancy diversion horn mouth, water conservancy diversion horn mouth sets up the upper and lower both ends at direct current section mutually away from the other side.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. A medical wastewater self-mixing purification treatment device is used for emergency treatment of medical wastewater and is characterized by comprising a coagulation area (1), a flocculation area (2), a reaction area (3), a precipitation area (4) and an external pipeline (5), wherein the coagulation area (1), the flocculation area (2), the reaction area (3) and the precipitation area (4) are sequentially arranged from front to back, medical wastewater is injected through the external pipeline (5) and is discharged after being sequentially treated through the coagulation area (1), the flocculation area (2), the reaction area (3) and the precipitation area (4);

external pipeline (5) are including inlet tube (51), dosing pipe (52) and back flow (53), inlet tube (51) are connected on coagulating basin (1), dosing pipe (52) are connected with coagulating basin (1) and flocculation district (2) respectively, back flow (53) are established in the outside to be connected with sedimentation zone (4), the end connection of back flow (53) is on inlet tube (51).

2. The medical wastewater self-mixing purification treatment device according to claim 1, which is characterized in that: the coagulation area (1) comprises a coagulation bin and a mixing flow guide pipe (11), the coagulation bin is divided into a coagulation mixing bin (12) and a coagulation reaction bin (13) through a partition plate, the coagulation reaction bin (13) is arranged on the left side and the right side of the coagulation mixing bin (12), and the mixing flow guide pipe (11) is vertically arranged in the coagulation mixing bin (12);

the water inlet pipe (51) is connected with the coagulation mixing bin (12), and the water outlet of the water inlet pipe (51) is positioned at the bottom end of the mixing flow guide pipe (11).

3. The medical wastewater self-mixing purification treatment device according to claim 2, which is characterized in that: the flocculation area (2) comprises a flocculation bin (21) and a mixing flow guide pipe (11), the flocculation bin (21) is separated from a coagulation bin through a partition plate, the flocculation bin (21) is connected with a coagulation reaction bin (13) through a coagulation water outlet pipe (211), and the mixing flow guide pipe (11) is vertically arranged in the flocculation bin (21);

the water inlet of the coagulation water outlet pipe (211) is connected with the coagulation reaction bin (13), and the water outlet of the coagulation water outlet pipe (211) is positioned at the bottom end of the mixing flow guide pipe (11) in the flocculation bin (21).

4. The medical wastewater self-mixing purification treatment device according to claim 3, wherein: the reaction area (3) is communicated with the flocculation area (2) through a water passing opening (212), a guide plate (31) is arranged in the reaction area (3), the guide plate (31) and the wall of the flocculation bin (21) form a guide groove, and the water passing opening (212) is arranged on the wall of the flocculation bin (21) and is positioned at the bottom of the guide groove.

5. The medical wastewater self-mixing purification treatment device according to claim 1, which is characterized in that: the settling zone (4) comprises a settling zone (41), a filtering zone (42) and an overflow zone (43), the settling zone (41), the filtering zone (42) and the overflow zone (43) are sequentially arranged from bottom to top, the settling zone (41) is communicated with the reaction zone (3), and a wastewater outlet pipe (431) is arranged on the overflow zone (43).

6. The medical wastewater self-mixing purification treatment device according to claim 3, wherein: a water through hole (121) is formed in a partition plate between the coagulation mixing bin (12) and the coagulation reaction bin (13), and the water through hole (121) is located at the bottom of the coagulation mixing bin (12); the water inlet of the coagulation water outlet pipe (211) is connected to the top of the coagulation reaction bin (13).

7. The medical wastewater self-mixing purification treatment device according to claim 3, wherein: the dosing pipe (52) comprises a first dosing pipe (521) and a second dosing pipe (522), the outlet end of the first dosing pipe (521) is connected to the water outlet of the water inlet pipe (51), and the outlet end of the second dosing pipe (522) is connected to the water outlet of the coagulation water outlet pipe (211).

8. The medical wastewater self-mixing purification treatment device according to claim 5, wherein: the starting end of the return pipe (53) is connected with the mud accumulation hopper, the sedimentation area (41) is communicated with the return pipe (53) through a mud valve, the tail end of the return pipe (53) is connected with the water inlet pipe (51) through a jet valve, and the water inlet pipe (51) is provided with external power; the return pipe (53) is provided with a transparent section.

9. The medical wastewater self-mixing purification treatment device according to claim 5, wherein: the filtering area (42) comprises inclined plates and water filtering plates, and the inclined plates are arranged below the water filtering plates at intervals.

10. The medical wastewater self-mixing purification treatment device according to claim 3, wherein: the mixing flow guide pipe (11) is arranged in the middle of the inner cavities of the coagulation mixing bin (12) and the flocculation bin (21) in a suspended manner; the mixing guide pipe (11) comprises a direct-current section and a guide bell mouth, and the guide bell mouth is arranged at the upper end and the lower end of the direct-current section in a back-to-back manner.