CN216039164U - Medical waste incineration treatment factory wastewater zero discharge system - Google Patents
Medical waste incineration treatment factory wastewater zero discharge system Download PDFInfo
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- CN216039164U CN216039164U CN202122486259.XU CN202122486259U CN216039164U CN 216039164 U CN216039164 U CN 216039164U CN 202122486259 U CN202122486259 U CN 202122486259U CN 216039164 U CN216039164 U CN 216039164U
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Abstract
A medical waste incineration treatment plant wastewater zero discharge system comprises an adjusting tank, a hydrolysis acidification tank, a contact oxidation tank, a coagulation sedimentation tank, a disinfection tank and a clean water tank which are sequentially connected through pipelines; the number of the contact oxidation tanks is two, and a backflow pipeline and a backflow pump are arranged between the two contact oxidation tanks; the coagulating sedimentation tank is also connected with a sludge concentration tank, clear liquid generated at the middle upper part of the sludge concentration tank flows back to the regulating tank through a pipeline, one part of sludge generated at the lower part flows back to the hydrolysis acidification tank through a pipeline, and the other part is dried and transported outside through a sludge drying field. The utility model recycles the waste water generated by medical waste incineration treatment plants, achieves the purposes of energy saving and water saving, and realizes the zero discharge of the waste water.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and particularly relates to a wastewater zero discharge system of a medical waste incineration treatment plant.
Background
The existing medical waste treatment methods comprise a high-temperature cooking method, a microwave disinfection method, a chemical disinfection method, an incineration method and the like, wherein the incineration method has the advantages of thorough harmlessness, outstanding reduction, wide adaptability, stable residue performance and the like, is not limited by scale, and is widely applied at home and abroad. The medical waste incineration treatment plant can generate waste water discharge in the operation process and comprises medical waste turnover box cleaning water, soft water station concentrated water, saturated steam sampling and discharging water, superheated steam sampling and discharging water, furnace water sampling and discharging water, feed water sampling and discharging water, water seal overflow in a furnace cover seat of a combustion chamber, water seal overflow outside the furnace cover seat of the combustion chamber and the like. Generally, after waste water of medical waste incineration treatment plants flows into a collecting tank, sterilization and disinfection measures are taken to discharge into a municipal pipe network. The above process system has the problems of serious water resource waste and the like.
SUMMERY OF THE UTILITY MODEL
The utility model designs a wastewater zero discharge system of a medical waste incineration treatment plant, which recycles wastewater generated by the medical waste incineration treatment plant, achieves the purposes of energy saving and water saving, and realizes wastewater zero discharge.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a medical waste incineration treatment plant wastewater zero discharge system comprises an adjusting tank, a hydrolysis acidification tank, a contact oxidation tank, a coagulation sedimentation tank, a disinfection tank and a clean water tank which are sequentially connected through pipelines; the number of the contact oxidation tanks is two, and a backflow pipeline and a backflow pump are arranged between the two contact oxidation tanks; the coagulating sedimentation tank is also connected with a sludge concentration tank, clear liquid generated at the middle upper part of the sludge concentration tank flows back to the regulating tank through a pipeline, one part of sludge generated at the lower part flows back to the hydrolysis acidification tank through a pipeline, and the other part is dried and transported outside through a sludge drying field.
Furthermore, a return pipeline is arranged between the disinfection tank and the adjusting tank.
Further, an aeration fan is arranged at the adjusting tank to introduce air into the adjusting tank.
Further, an aeration fan is arranged at the contact oxidation tank to introduce air into the contact oxidation tank.
Further, a stirrer is arranged in the coagulation sedimentation tank.
Further, a flocculating agent and a coagulant aid are added into the coagulation sedimentation tank.
The utility model has the beneficial effects that:
the utility model recycles the waste water generated by medical waste incineration treatment plants, achieves the purposes of energy saving and water saving, and realizes the zero discharge of the waste water; meanwhile, the two contact oxidation ponds are arranged, so that organic matters in the wastewater can be circularly oxidized and decomposed, and the organic matter treatment efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: the system comprises a regulating tank 1, a hydrolysis acidification tank 2, a first contact oxidation tank 3, a second contact oxidation tank 4, a coagulating sedimentation tank 5, a disinfection tank 6, a clean water tank 7, a sludge concentration tank 8, a sludge drying field 9, a regulating pump 11, a reflux pump 12, a stirrer 13, a sludge pump 14, a clean water pump 15, a first aeration fan 16, a second aeration fan 17 and a third aeration fan 18.
Detailed Description
Example (b):
referring to fig. 1, a medical waste incineration treatment plant wastewater zero discharge system comprises an adjusting tank 1, a hydrolysis acidification tank 2, a contact oxidation tank, a coagulation sedimentation tank, a disinfection tank 6 and a clean water tank 7 which are sequentially connected through a pipeline. The wastewater and the rainwater enter the adjusting tank 1, the wastewater in the adjusting tank 1 is conveyed to the hydrolysis acidification tank 2 through the adjusting pump 11, and an aeration fan I16 is arranged at the adjusting tank 1 and is used for introducing air into the adjusting tank 1.
In the hydrolytic acidification tank 2, the anaerobic microorganisms are utilized to convert the non-soluble organic matters in the wastewater into soluble organic matters by a hydrolytic acidification method, and the macromolecular substances which are difficult to biodegrade are decomposed into micromolecular substances, so that the biodegradability of the wastewater is improved, and good water quality conditions are provided for the subsequent aerobic biochemical reaction
The contact oxidation pond comprises two stages, namely a first contact oxidation pond 3 and a second contact oxidation pond 4, two reflux pumps 12 are arranged in the second contact oxidation pond 4, one reflux pump is used for conveying part of wastewater in the second contact oxidation pond 4 to the first contact oxidation pond 3, and organic matters in the wastewater can be circularly decomposed. And the wastewater in the hydrolysis acidification tank 2 automatically flows into a first contact oxidation tank 3 through the height drop of the device, and the wastewater in the first contact oxidation tank 3 automatically flows into a second contact oxidation tank 4 through the height drop. The two contact oxidation ponds are respectively provided with a second aeration fan 17 and a third aeration fan 18, air is introduced into the two contact oxidation ponds, in addition, the second aeration fan 17 and the third aeration fan 18 can be switched and started according to the program setting time, the outlets of the two aeration fans are communicated through a cross-line pipeline, biofilm fillers are arranged in the contact oxidation ponds, microorganisms are attached to the biofilm fillers, and the microorganisms are used for carrying out metabolic activity on organic matters in the wastewater, so that the organic matters are oxidized and decomposed.
The wastewater in the contact oxidation pond automatically flows into the coagulating sedimentation tank 5 through height drop, a stirrer 13 and two sludge pumps 14 are arranged in the coagulating sedimentation tank 5, and one sludge pump 14 is used. Flocculating agents (PAC) and coagulant aids (PAM) are added into the coagulated sludge tank to enhance the coagulation of solid impurities in the wastewater. The stirrer 13 makes the additive fully contact with the total solid impurities in the wastewater, the stirring is stopped after the reaction is carried out for a certain time, the coagulation sedimentation tank 5 is layered, the upper layer liquid flows into the disinfection tank 6, and the liquid containing the solid impurities next time is conveyed to the sludge concentration tank 8 through the sludge pump 14. Sodium hypochlorite is added into the disinfection tank 6. The upper layer of water in the disinfection tank 6 flows into a clean water tank 7 and is conveyed to a user by a clean water pump 15, and the lower layer of water flows back to the regulating tank 1 through a pipeline. Supernatant liquor in the sludge concentration tank 8 flows back to the regulating tank 1 for circular treatment, liquid with more sludge still contained in the middle layer flows back to the hydrolysis acidification tank 2 for circular treatment, and the sludge at the lower layer is taken out and transported to a sludge drying bed 9 for drying treatment and then transported outside for other purposes. It should be noted that, when the upper layer liquid and the lower layer liquid flow out from the same device, the upper layer liquid and the lower layer liquid can flow out of the device respectively only by controlling the sequential opening time of the outflow valves of the upper layer liquid pipeline and the lower layer liquid pipeline.
Claims (5)
1. The utility model provides a waste water zero release system of medical waste incineration disposal factory which characterized in that: comprises an adjusting tank, a hydrolysis acidification tank, a contact oxidation tank, a coagulation sedimentation tank, a disinfection tank and a clean water tank which are connected in sequence through pipelines; the number of the contact oxidation tanks is two, and a backflow pipeline and a backflow pump are arranged between the two contact oxidation tanks; the coagulating sedimentation tank is also connected with a sludge concentration tank, clear liquid generated at the middle upper part of the sludge concentration tank flows back to the regulating tank through a pipeline, one part of sludge generated at the lower part flows back to the hydrolysis acidification tank through a pipeline, and the other part is dried and transported outside through a sludge drying field.
2. The system of claim 1, wherein the system is characterized in that: a return pipeline is arranged between the disinfection tank and the adjusting tank.
3. The system of claim 1, wherein the system is characterized in that: and an aeration fan is arranged at the adjusting tank to introduce air into the adjusting tank.
4. The system of claim 1, wherein the system is characterized in that: and an aeration fan is arranged at the contact oxidation tank to introduce air into the contact oxidation tank.
5. The system of claim 1, wherein the system is characterized in that: and adding a flocculating agent and a coagulant aid into the coagulation sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486259.XU CN216039164U (en) | 2021-10-15 | 2021-10-15 | Medical waste incineration treatment factory wastewater zero discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486259.XU CN216039164U (en) | 2021-10-15 | 2021-10-15 | Medical waste incineration treatment factory wastewater zero discharge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216039164U true CN216039164U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122486259.XU Active CN216039164U (en) | 2021-10-15 | 2021-10-15 | Medical waste incineration treatment factory wastewater zero discharge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216039164U (en) |
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2021
- 2021-10-15 CN CN202122486259.XU patent/CN216039164U/en active Active
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