CN211339179U

CN211339179U - Waste water treatment system for hematology department

Info

Publication number: CN211339179U
Application number: CN201921311101.5U
Authority: CN
Inventors: 张志鹏; 印显东; 熊刚; 李亮
Original assignee: Chongqing Taike Environmental Protection Technology Co ltd
Current assignee: Chongqing Taike Environmental Protection Technology Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-08-25
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a hematology department effluent disposal system mainly solves current hematology department effluent disposal method and equipment that exist among the prior art, and the processing time overlength, complex operation consumes a large amount of manpower and materials, can not satisfy the problem of current hematology department effluent disposal's requirement. The hematology waste water treatment system comprises a grating well and an adjusting tank, wherein the grating well is communicated with hematology waste water and is arranged in the adjusting tank; the regulating tank is sequentially communicated with a blood treatment tank, a hydrolysis acidification tank, a contact oxidation tank, a cyanide wastewater cyanide breaking device, a flocculation sedimentation tank and an intermediate water tank; the middle water tank is communicated with a disinfection tank; the flocculation sedimentation tank is communicated with a sludge tank, and a sludge pump is arranged in the flocculation sedimentation tank and sends sludge to the sludge tank through a sludge pipe. By the proposal, the utility model discloses reached high-efficient, quick, complete purpose of handling waste water, had very high practical value and spreading value.

Description

Waste water treatment system for hematology department

Technical Field

The utility model relates to a medical wastewater treatment field, specifically speaking relates to a hematology department effluent disposal system.

Background

Hospitals generate a large amount of medical wastewater every day, which mainly comprises: COD, BOD and high ammonia nitrogen concentration, and contains a large amount of pathogenic bacteria; meanwhile, a small amount of waste water, waste liquid and the like containing toxic and harmful chemical substances from various clinical inspection departments, research departments and the like; if the waste water is discharged into nearby water bodies without treatment, the waste water becomes an important way for spreading epidemic diseases and seriously pollutes the environment, according to the water pollution prevention and control law of the people's republic of China, the pollution of the hospital sewage discharge to the environment is prevented, the hospital sewage needs to be effectively treated and reaches the national standard, and then the waste water can be discharged into a municipal drainage network.

Among the medical waste water, the waste water generated in the blood department contains toxic substances such as cyanogen waste water, COD and BOD due to various forest examination and research carried out by blood; the conventional method and equipment for treating the waste water in the hematology department have the defects of overlong treatment time, complex operation, consumption of a large amount of manpower and material resources and incapability of meeting the requirement of the conventional method and equipment for treating the waste water in the hematology department.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blood branch of academic or vocational study effluent disposal system to solve current blood branch of academic or vocational study effluent disposal method and equipment, the processing time overlength, complex operation consumes a large amount of manpower and materials, can not satisfy the problem of current blood branch of academic or vocational study effluent disposal's requirement.

In order to solve the above problem, the utility model provides a following technical scheme:

a hematology waste water treatment system comprises a grid well and an adjusting tank, wherein the grid well is communicated with hematology waste water and is arranged in the adjusting tank; the regulating tank is sequentially communicated with a blood treatment tank, a hydrolysis acidification tank, a contact oxidation tank, a cyanide wastewater cyanide breaking device, a flocculation sedimentation tank and an intermediate water tank; the middle water tank is communicated with a disinfection tank; the flocculation sedimentation tank is communicated with a sludge tank, and a sludge pump is arranged in the flocculation sedimentation tank and sends sludge to the sludge tank through a sludge pipe;

a stirring shaft with a plurality of stirring paddles is arranged in the blood treatment pool; one end of the stirring shaft is connected with a stirring motor positioned outside the blood treatment pool; the blood treatment pool is communicated with a chlorine dioxide generator through a pipeline;

a sludge bed is arranged at the bottom of the hydrolysis acidification tank, and an elastic filler is arranged above the sludge bed;

the bottom of the contact oxidation tank is communicated with an aeration pipe positioned outside the contact oxidation tank, the aeration pipe is communicated with a plurality of aeration heads, and the aeration heads are arranged at the bottom or on the side wall of the contact oxidation tank; the aeration pipe is connected with a blower;

the disinfection tank is communicated with a vent pipe positioned outside the disinfection tank, the vent pipe is communicated with a plurality of air outlet pipes, and the air outlet pipes are arranged at the inner bottom of the disinfection tank; the vent pipe is connected with an ozone generator.

Specifically, adjacent two of an adjusting tank, a blood treatment tank, a hydrolysis acidification tank, a contact oxidation tank, a cyanide wastewater cyanide breaking device and a flocculation sedimentation tank are communicated through a pipeline, and a conveying pump is arranged on the pipeline between the adjacent two; the upper part of the flocculation sedimentation tank is provided with a clear water overflow port which is communicated with the middle water tank.

Specifically, a purifying and filtering tank is communicated between the middle water tank and the sterilizing tank; the purifying and filtering tank is internally provided with active carbon or medical stone.

In particular, the elastomeric material is a honeycomb or semi-soft composite filler.

Specifically, the adjusting tank is a sewage storage device which is integrated with the grid well.

Specifically, the flocculation sedimentation tank is provided with a coagulant feeding port.

Compared with the prior art, the utility model discloses following beneficial effect has: waste water of hematology is pretreated by a grid well, and solid substances such as cotton balls and cotton sticks are isolated; then destroying the integrity of blood cells in the blood through high-speed rotation in the blood treatment pool, and then killing microorganisms in the wastewater and further destroying the activity of the blood cells in the blood through chlorine dioxide; then removing a large amount of suspended substances and non-biochemical substances in the wastewater through a hydrolysis acidification pool; during treatment, the concentration of dissolved oxygen in the pool is ensured to be below 0.5mg/L, solid substances are degraded into soluble substances, and macromolecular substances are degraded into micromolecular substances. The sewage is distributed at the bottom of the tank and rises slowly, so that a certain anoxic sludge concentration is kept in the tank, and when the sewage passes through a sludge bed layer formed by bacteria, the sludge performs adsorption, net capture, biological flocculation and biological degradation on suspended matters, so that the sewage is clarified while COD is degraded. The hydraulic retention time is short and the efficiency is high. The removal rate of COD and BOD can reach 20 percent and 30 percent, and simultaneously, the composite material has strong load impact resistance. The sewage is subjected to denitrification of anaerobic flora in the anoxic tank to convert ammonia nitrogen in the water into nitrogen and release the nitrogen into the air so as to achieve the effect of removing the ammonia nitrogen; then the contact oxidation pond utilizes the action of a biological film inhabiting the surface of the filler to achieve the aim of purifying water; then removing cyanogen in the wastewater by a cyanogen wastewater breaking device; then clear water enters an intermediate water tank, and sludge enters a sludge tank; through the process, harmful substances in the waste water of hematology can be efficiently, quickly and completely cleaned, and the water discharged from the disinfection tank is compounded with GB 18466-2005 'discharge Standard of Water pollutants for medical institutions'.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-grid well, 2-adjusting tank, 3-blood treatment tank, 31-stirring paddle, 32-stirring shaft, 33-stirring motor, 34-chlorine dioxide generator, 4-hydrolytic acidification tank, 41-sludge bed, 42-elastic filler, 5-contact oxidation tank, 51-aeration pipe, 52-aeration head, 53-blower, 6-cyanide wastewater cyanide breaking device, 7-flocculation sedimentation tank, 8-intermediate tank, 9-disinfection tank, 91-aeration pipe, 92-air outlet pipe, 93-ozone generator, 10-sludge tank, 101-sludge pump, 11-delivery pump, 12-clear water overflow port, 13-purification filtration tank, 14-coagulant dosing port.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

As shown in fig. 1, a hematology waste water treatment system comprises a grating well 1 and a regulating reservoir 2 which are communicated with hematology waste water, wherein the grating well 1 is arranged in the regulating reservoir 2; the regulating reservoir 2 is sequentially communicated with a blood treatment reservoir 3, a hydrolysis acidification reservoir 4, a contact oxidation reservoir 5, a cyanide wastewater cyanide breaking device 6, a flocculation sedimentation reservoir 7 and an intermediate water reservoir 8; the middle water tank 8 is communicated with a disinfection tank 9; the flocculation sedimentation tank 7 is communicated with a sludge tank 10, and a sludge pump 101 is arranged in the flocculation sedimentation tank 7 and sends sludge to the sludge tank 10 through a sludge pipe; the cyanide wastewater cyanide breaking device 6 is mature prior art, and the detailed structure of the device is not described in detail;

a stirring shaft 32 with a plurality of stirring paddles 31 is arranged in the blood treatment pool 3; one end of the stirring shaft 32 is connected with a stirring motor 33 positioned outside the blood treatment pool 3; the blood treatment pool 3 is communicated with a chlorine dioxide generator 34 through a pipeline;

the bottom of the hydrolysis acidification tank 4 is provided with a sludge bed 41, and an elastic filler 42 is arranged above the sludge bed 41;

the bottom of the contact oxidation pond 5 is communicated with an aeration pipe 51 positioned outside the contact oxidation pond, the aeration pipe 51 is communicated with a plurality of aeration heads 52, and the aeration heads 52 are arranged on the bottom or the side wall of the contact oxidation pond 5; the aerator pipe 51 is connected with a blower 53;

the disinfection tank 9 is communicated with a vent pipe 91 positioned outside the disinfection tank, the vent pipe 91 is communicated with a plurality of air outlet pipes 92, and the air outlet pipes 92 are arranged at the inner bottom of the disinfection tank 9; the aeration pipe 91 is connected with an ozone generator 93; or the finished disinfectant prepared by compounding sodium chloride, organic acid and potassium monopersulfate composite salt is added through a dosing device according to the requirement, and chain reaction is carried out in water by utilizing the special oxidizing capacity of the potassium monopersulfate in aqueous solution to continuously generate nascent oxygen (O), hypochlorous acid (HCLO), free hydroxyl (OH) and hydrogen peroxide (H)₂O₂)。

Waste water in hematology is pretreated by a grid well 1, and solid substances such as cotton balls and cotton sticks are isolated; then the integrity of blood cells in the blood is destroyed through high-speed rotation in the blood treatment pool 3, and then the microorganisms in the wastewater are killed through chlorine dioxide and the activity of the blood cells in the blood is further destroyed; then a large amount of suspended substances and non-biochemical substances in the wastewater are removed through a hydrolysis acidification tank 4; during treatment, the concentration of dissolved oxygen in the pool is ensured to be below 0.5mg/L, solid substances are degraded into soluble substances, and macromolecular substances are degraded into micromolecular substances. The sewage is distributed at the bottom of the tank and rises slowly, so that a certain anoxic sludge concentration is kept in the tank, and when the sewage passes through a sludge bed 41 layer formed by bacteria, the sludge performs adsorption, net capture, biological flocculation and biological degradation on suspended matters, so that the sewage is clarified while COD is degraded. The hydraulic retention time is short and the efficiency is high. The removal rate of COD and BOD can reach 20 percent and 30 percent, and simultaneously, the composite material has strong load impact resistance. The sewage is subjected to denitrification of anaerobic flora in the anoxic tank to convert ammonia nitrogen in the water into nitrogen and release the nitrogen into the air so as to achieve the effect of removing the ammonia nitrogen; then the contact oxidation pond 5 is used for purifying water by utilizing the action of a biological film inhabiting the surface of the filler through the contact oxidation pond 5; then removing cyanogen in the wastewater through a cyanogen wastewater breaking device 6; then clear water enters an intermediate water tank 8, and sludge enters a sludge tank 10; through the process, harmful substances in the waste water in the hematology department can be efficiently, quickly and completely cleaned, and the water discharged from the disinfection tank 9 is compounded with GB 18466-2005 discharge Standard for Water pollutants for medical institutions.

In the preferred embodiment of the present invention, the adjusting tank 2, the blood treatment tank 3, the hydrolysis-acidification tank 4, the contact oxidation tank 5, the cyanide wastewater cyanide breaking device 6 and the flocculation-sedimentation tank 7 are communicated with each other through a pipeline, and a delivery pump 11 is arranged on the pipeline between the two adjacent ones; the upper part of the flocculation sedimentation tank 7 is provided with a clear water overflow port 12 which is communicated with the middle water tank 8.

In the preferred embodiment of the utility model, a purifying and filtering tank 13 is communicated between the intermediate water tank 8 and the sterilizing tank 9; the purifying and filtering tank 13 is internally provided with active carbon or medical stone; other purification and disinfection equipment can be selected.

In a preferred embodiment of the present invention, the elastic material is a honeycomb or semi-soft combined filler; other resilient materials are also possible.

In the preferred embodiment of the present invention, the adjusting tank 2 is a sewage storage device, which is integrated with the grid well 1.

In the preferred embodiment of the present invention, the flocculation sedimentation tank 7 is provided with a coagulant feeding port 14.

According to the above embodiment, alright realize the utility model discloses well. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.

Claims

1. A hematology department wastewater treatment system comprises a grid well (1) communicated with hematology department wastewater, and is characterized in that: the device also comprises a regulating tank (2), wherein the grid well (1) is arranged in the regulating tank (2); the regulating tank (2) is sequentially communicated with a blood treatment tank (3), a hydrolysis acidification tank (4), a contact oxidation tank (5), a cyanide wastewater cyanide breaking device (6), a flocculation sedimentation tank (7) and an intermediate water tank (8); the middle water tank (8) is communicated with a disinfection tank (9); the flocculation sedimentation tank (7) is communicated with a sludge tank (10), a sludge pump (101) is arranged in the flocculation sedimentation tank (7) and sends sludge to the sludge tank (10) through a sludge pipe;

a stirring shaft (32) with a plurality of stirring paddles (31) is arranged in the blood treatment pool (3); one end of the stirring shaft (32) is connected with a stirring motor (33) positioned outside the blood treatment pool (3); a chlorine dioxide generator (34) is communicated with the blood treatment pool (3) through a pipeline;

a sludge bed (41) is arranged at the bottom of the hydrolysis acidification tank (4), and an elastic filler (42) is arranged above the sludge bed (41);

the bottom of the contact oxidation tank (5) is communicated with an aeration pipe (51) positioned outside the contact oxidation tank, the aeration pipe (51) is communicated with a plurality of aeration heads (52), and the aeration heads (52) are arranged on the bottom or the side wall of the contact oxidation tank (5); the aeration pipe (51) is connected with a blower (53);

the disinfection tank (9) is communicated with a vent pipe (91) positioned outside the disinfection tank, the vent pipe (91) is communicated with a plurality of air outlet pipes (92), and the air outlet pipes (92) are arranged at the inner bottom of the disinfection tank (9); the vent pipe (91) is connected with an ozone generator (93).

2. The hematology waste water treatment system according to claim 1, wherein: adjacent two of the regulating tank (2), the blood treatment tank (3), the hydrolysis acidification tank (4), the contact oxidation tank (5), the cyanide wastewater cyanide breaking device (6) and the flocculation sedimentation tank (7) are communicated through pipelines, and a delivery pump (11) is arranged on the pipeline between the adjacent two; the upper part of the flocculation sedimentation tank (7) is provided with a clear water overflow opening (12) which is communicated with the middle water tank (8).

3. The hematology waste water treatment system according to claim 2, characterized in that: a purifying and filtering tank (13) is communicated between the intermediate water tank (8) and the disinfection tank (9); the purifying and filtering tank (13) is internally provided with active carbon or medical stone.

4. The hematology waste water treatment system according to claim 3, wherein: the elastic material is honeycomb or semi-soft combined filler.

5. The hematology waste water treatment system according to claim 4, wherein: the adjusting tank (2) is a sewage storage device and is integrated with the grid well (1).

6. The hematology waste water treatment system according to claim 5, wherein: the flocculation sedimentation tank (7) is provided with a coagulant feeding port (14).