CN219991344U - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
- Publication number
- CN219991344U CN219991344U CN202320670637.6U CN202320670637U CN219991344U CN 219991344 U CN219991344 U CN 219991344U CN 202320670637 U CN202320670637 U CN 202320670637U CN 219991344 U CN219991344 U CN 219991344U
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- CN
- China
- Prior art keywords
- sewage
- tank
- treatment system
- disinfection
- wastewater treatment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 120
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 90
- 238000004062 sedimentation Methods 0.000 claims abstract description 34
- 230000003647 oxidation Effects 0.000 claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 239000000645 desinfectant Substances 0.000 claims description 18
- 244000005700 microbiome Species 0.000 claims description 16
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 13
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 21
- 241000700605 Viruses Species 0.000 abstract description 17
- 241000711573 Coronaviridae Species 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- 230000001954 sterilising effect Effects 0.000 description 23
- 238000000034 method Methods 0.000 description 10
- 239000002351 wastewater Substances 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011146 organic particle Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000382 dechlorinating effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a sewage treatment system, which comprises a sedimentation tank, a lifting well, a first disinfection tank, a regulating tank, a contact oxidation tank, a secondary open caisson, a second disinfection tank and a water outlet well, wherein the sedimentation tank is arranged above the lifting well; the sewage treatment system performs pre-disinfection treatment on sewage through the first disinfection tank, so that novel coronaviruses in the sewage are effectively removed, and mass propagation and propagation of the viruses are prevented; removing organic substances in the sewage through a contact oxidation pond; and the sewage is subjected to secondary disinfection treatment through the second disinfection tank, so that the generation of virus propagation and propagation of the sewage in the contact oxidation tank is prevented, and the safety of system discharge is ensured. The sewage treatment system performs secondary disinfection treatment on the novel coronavirus in the sewage, can remove organic matters in the sewage, meets the sewage discharge requirement, and simultaneously ensures the safety of sewage discharge.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment system.
Background
A large amount of diagnosis and treatment wastewater, living and fecal sewage containing viruses can be discharged from emergency hospitals, residential areas and the like, and the sewage needs to be disinfected before entering municipal pipe networks or water bodies so as to prevent the further spread of the viruses.
Disclosure of Invention
In order to prevent viruses from overflowing through sewage and inhibit the viruses from further spreading, the utility model provides a sewage treatment system for carrying out secondary disinfection treatment on the viruses in the sewage.
The sewage treatment system provided by the utility model comprises a first disinfection tank and a second disinfection tank;
the sewage is subjected to pre-disinfection treatment through a first disinfection tank, and is subjected to secondary disinfection treatment through a second disinfection tank; the concentration of disinfectant in the first disinfection tank is higher than that in the second disinfection tank.
Optionally, the first disinfection tank and the second disinfection tank adopt 10% sodium hypochlorite as disinfectant; wherein,
the volume ratio of sewage to disinfectant in the first disinfection tank is not lower than 10:3 and not higher than 4:3, a step of;
the volume ratio of the sewage to the disinfectant in the second disinfection tank is not lower than 20:3 and not higher than 4:1.
optionally, the disinfection treatment time of the first disinfection tank is longer than the disinfection treatment time of the second disinfection tank.
Optionally, the processing system further comprises a deposition tank;
the treatment system stores sewage through the sedimentation tank and carries out sedimentation treatment on the sewage.
Optionally, the processing system further comprises a lift pond;
the lifting pool is communicated with the sedimentation pool, and clarified sewage at the upper part of the sedimentation pool flows into the lifting pool; the sewage in the lifting pond is conveyed into the first disinfection pond.
Optionally, the treatment system further comprises an adjustment tank;
the sewage in the first disinfection tank flows into the regulating tank, and disinfectants in the sewage are removed in the regulating tank.
Optionally, the treatment system further comprises a contact oxidation cell;
the sewage in the regulating tank flows into the contact oxidation tank, and organic matters in the sewage are decomposed by microorganisms in the contact oxidation tank.
Optionally, the treatment system further comprises a secondary sedimentation tank;
the sewage in the contact oxidation pond flows into a secondary sedimentation tank, the secondary sedimentation tank further carries out sedimentation treatment on the sewage, and the sewage in the secondary sedimentation tank is conveyed into a second disinfection pond.
Optionally, the second disinfection tank monitors water quality.
Optionally, the treatment system further comprises a water outlet well;
and water qualified in the second disinfection tank flows into the water outlet well, and is discharged out of the sewage treatment system through the water outlet well.
Compared with the prior art, the sewage treatment system provided by the utility model comprises a first disinfection tank, a second disinfection tank, a contact oxidation tank and the like; the sewage is subjected to pre-disinfection treatment through the first disinfection tank, so that viruses in the sewage are effectively removed, and the mass propagation and transmission of the viruses are prevented; removing organic substances in the sewage through a contact oxidation pond; and the sewage is subjected to secondary disinfection treatment through the second disinfection tank, so that the generation of virus propagation and propagation of the sewage in the contact oxidation tank is prevented, and the safety of system discharge is ensured. The sewage treatment system performs secondary disinfection treatment on viruses in sewage, can remove organic matters in the sewage, meets the sewage discharge requirement, and simultaneously ensures the safety of sewage discharge.
Drawings
Fig. 1 is a schematic diagram of a sewage treatment system according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in this document, the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the statement "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article or terminal device comprising the element.
It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the utility model.
The utility model provides a sewage treatment system, which comprises two disinfection tanks, wherein the sewage is subjected to pre-disinfection treatment through a first disinfection tank, and is subjected to secondary disinfection treatment through a second disinfection tank; the concentration of disinfectant in the first disinfection tank is generally higher than the concentration of disinfectant in the second disinfection tank, and the disinfection treatment time of the first disinfection tank is generally longer than the disinfection treatment time of the second disinfection tank.
In an embodiment of the present utility model, the sewage treatment system specifically includes a sedimentation tank 100, a lifting well 200, a first disinfection tank 300, a regulating tank 400, a contact oxidation tank 500, a secondary open caisson 600, a second disinfection tank 700, and a water outlet well 800.
The sedimentation tank 100 is used for receiving, storing and sedimentation treatment of sewage flowing into the treatment system. The sedimentation tank 100 is usually arranged underground, the sewage flows into the sedimentation tank 100 and stands for a certain time, most particles or impurities are settled at the bottom of the sedimentation tank 100, and the sewage at the upper part of the sedimentation tank 100 is separated from the impurities and the particles, so that the sewage is relatively clear. The sewage treated by the sedimentation tank 100 is inputted into the lift well 200.
The lift well 200 communicates with the sedimentation tank 100 for receiving clarified sewage from an upper portion of the sedimentation tank 100. In an implementation manner of this embodiment, the lifting well 200 is also disposed underground, and the sedimentation tank 100 and the lifting well 200 are communicated through a pipeline (not shown in the drawing), one end of the pipeline is disposed at an upper portion of the sedimentation tank 100 and is communicated with the sedimentation tank 100, and the other end of the pipeline is disposed at an upper portion of the lifting well 200 and is communicated with the lifting well 200, so that clarified sewage at the upper portion of the sedimentation tank 100 flows into the lifting well 200. A filter screen may be further disposed in the pipe for filtering floating objects in the sewage to prevent the floating objects from flowing into the lift well 200 along with the sewage. The sewage treated by the lift well 200 is inputted into the first sterilizing tank 300.
The first sterilizing tank 300 is used for pre-sterilizing sewage. The first sterilizing compartment 300 is generally disposed on the ground to facilitate the sterilization process. A pumping device may be disposed in the lift well 200 to transfer the sewage in the lift well 200 to the first sterilizing tank 300. In one embodiment of the present embodiment, the first disinfection tank 300 uses a 10% sodium hypochlorite solution as a disinfectant, and the sodium hypochlorite is hydrolyzed in water to form hypochlorous acid, which is further decomposed to form nascent oxygen, and the nascent oxygen has a very strong oxidizing property to denature proteins of microorganisms such as bacteria and viruses, thereby destroying microorganisms such as novel coronaviruses. The concentration of sodium hypochlorite in the sewage is too high to be easily degraded and volatilized, and the sterilization effect is correspondingly reduced if the concentration is too low to be capable of meeting the requirements; in one implementation of this embodiment, the volume ratio of the sewage to the disinfectant in the first disinfection tank is not less than 10:3 and not more than 4:3, a step of; 20 m/hr of the first sterilizing pond 300 3 For example, the first sterilizing tank 300 needs to add 6-15L of sodium hypochlorite solution per hour to sterilize the sewage. In one implementation of this embodiment, the wastewater is typically placed in the first disinfection tank 300 for 1.5-2 hours to substantially sterilize the wastewater, thereby ensuring disinfection and operational efficiency of the system. The first disinfection tank 300 performs pre-disinfection treatment on sewage, effectively eliminates novel coronavirus and other microorganisms, and inhibits mass propagation and diffusion of viruses, bacteria and other microorganisms; the sewage treated in the first sterilizing tank 300 is inputted into the regulating tank 400.
The regulating tank 400 is used for removing disinfectant sodium hypochlorite in sewage. The sewage treated in the first sterilizing tank 300 contains a large amount of sodium hypochlorite, and hypochlorous acid generated after the hydrolysis of the sodium hypochlorite can denature proteins of microorganisms and kill the microorganisms, and if the sewage treated in the first sterilizing tank 300 is directly input into the contact oxidation tank 500, the microorganisms for decomposing organic matters in the contact oxidation tank 500 lose activity, so that disinfectant in the sewage treated in the first sterilizing tank 300 needs to be removed before the sewage is input into the contact oxidation tank 500. In one embodiment of the present embodiment, the disinfectant in the sewage is removed by adding sodium thiosulfate (dechlorinating agent) to the regulating tank 400 to react with sodium hypochlorite. The water outlet end of the regulating tank 400 is provided with a residual chlorine monitoring device for monitoring the residual chlorine concentration in the sewage, and the residual chlorine concentration in the sewage is lower than 0.5mg/L according to relevant standard regulations so as to meet the subsequent sewage treatment requirements. The wastewater treated by the conditioning tank 400 is fed into the contact oxidation tank 500.
The contact oxidation tank 500 is used for removing organic substances in sewage. The sewage contains a large amount of organic matters, and the organic matters in the sewage need to be removed to discharge the sewage into municipal administration network pipes or water bodies. Large-diameter organic particles can be removed by precipitation and filtration, and small-diameter organic particles are usually removed by degradation by microorganisms. The contact oxidation cell 500 provides an environment suitable for the growth and propagation of microorganisms. In an implementation manner of this embodiment, activated sludge is disposed in the contact oxidation tank 500, and complex microorganisms in the activated sludge grow and propagate in a large amount in the contact oxidation tank 500 to form a complex food chain with organic matters in the sewage, and the organic matters in the sewage are decomposed by the microorganisms, so that the organic matters are removed. The sewage treated by the contact oxidation pond 500 is inputted into the secondary open caisson 600.
The secondary open caisson 600 is used for secondary precipitation of sewage. The secondary open caisson 600 receives the wastewater treated by the contact oxidation basin 500 and performs a precipitation treatment on the wastewater. The sewage is kept stand in the secondary open caisson 600 for a certain time, particles or impurities such as sludge are further precipitated at the bottom of the secondary open caisson 600, and the sewage at the upper part of the secondary open caisson 600 is relatively clear. The sewage treated by the secondary open caisson 600 is transferred to the second disinfection tank 700.
The second sterilizing compartment 700 is used for performing a secondary sterilization process on the sewage. Since the contact oxidation pond 500 through which sewage flows is suitable for microorganism growth and reproduction, the utility model provides a second disinfection pond 700 for secondary disinfection treatment of sewage in order to avoid the situation that novel coronaviruses regrow and reproduce in the environment of the contact oxidation pond 500 and a small amount of novel coronaviruses are not thoroughly extinguished to cause virus overflow. In one embodiment of the present example, the second sterilizing tank 700 uses 10% sodium hypochlorite solution as a sterilizing agent, and hypochlorous acid is formed by hydrolysis of sodium hypochlorite in water, and the hypochlorous acid is further decomposed to form nascent oxygen, which has extremely strong oxidizing property to denature proteins of microorganisms such as bacteria and viruses, thereby destroying microorganisms such as novel coronaviruses. In one implementation of this embodiment, the volume ratio of the sewage to the disinfectant in the second disinfection tank 700 is not lower than 20:3 and not higher than 4:1, a step of; input 20 m/hr with second sterilizing pond 700 3 For example, the second sterilizing tank 700 may be required to sterilize the sewage by adding 3-5L of sodium hypochlorite solution per hour. The sterilization process time of the first sterilization tank 300 is longer than that of the second sterilization tank 700; in one implementation of this embodiment, the wastewater is typically left in the second disinfection tank 700 for 1-1.5 hours, so that the wastewater can be thoroughly disinfected. The second sterilizing tank 700 performs a secondary sterilization process on the sewage, ensuring the safety of sewage discharge. The water outlet end of the second disinfection tank 700 is provided with a residual chlorine monitoring device for monitoring the residual chlorine concentration in the sewage, and the discharge requirement can be met only when the residual chlorine concentration in the sewage is lower than 0.5mg/L according to relevant standard regulation. Water of acceptable quality in the second disinfection tank 700 will flow into the water outlet well 800 and be discharged out of the sewage treatment system through the water outlet well 800.
The sewage treatment system provided by the utility model removes organic substances in sewage, and can perform secondary disinfection treatment on viruses in the sewage while meeting the sewage discharge requirement, thereby guaranteeing the safety of sewage discharge and having important opinion on preventing virus diffusion.
While the present utility model has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the utility model. Many modifications and substitutions of the present utility model will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the utility model should be limited only by the attached claims.
Claims (10)
1. A sewage treatment system is characterized in that,
the treatment system comprises a first disinfection tank and a second disinfection tank;
the sewage is subjected to pre-disinfection treatment through a first disinfection tank, and is subjected to secondary disinfection treatment through a second disinfection tank; the concentration of disinfectant in the first disinfection tank is higher than that in the second disinfection tank.
2. The wastewater treatment system of claim 1, wherein the wastewater treatment system comprises a wastewater treatment system,
the first disinfection tank and the second disinfection tank adopt 10 percent sodium hypochlorite as disinfectant; wherein,
the volume ratio of sewage to disinfectant in the first disinfection tank is not lower than 10:3 and not higher than 4:3, a step of;
the volume ratio of the sewage to the disinfectant in the second disinfection tank is not lower than 20:3 and not higher than 4:1.
3. the wastewater treatment system of claim 1, wherein the wastewater treatment system comprises a wastewater treatment system,
the disinfection treatment time of the first disinfection tank is longer than that of the second disinfection tank.
4. The wastewater treatment system of claim 1, wherein the wastewater treatment system comprises a wastewater treatment system,
the processing system further comprises a deposition cell;
the treatment system stores sewage through the sedimentation tank and carries out sedimentation treatment on the sewage.
5. The wastewater treatment system of claim 4,
the processing system further comprises a lift pond;
the lifting pool is communicated with the sedimentation pool, and clarified sewage at the upper part of the sedimentation pool flows into the lifting pool; the sewage in the lifting pond is conveyed into the first disinfection pond.
6. The wastewater treatment system of claim 5,
the treatment system further comprises a conditioning tank;
the sewage in the first disinfection tank flows into the regulating tank, and disinfectants in the sewage are removed in the regulating tank.
7. The wastewater treatment system of claim 6, wherein the wastewater treatment system comprises a wastewater treatment system,
the treatment system further comprises a contact oxidation cell;
the sewage in the regulating tank flows into the contact oxidation tank, and organic matters in the sewage are decomposed by microorganisms in the contact oxidation tank.
8. The wastewater treatment system of claim 7,
the treatment system further comprises a secondary sedimentation tank;
the sewage in the contact oxidation pond flows into a secondary sedimentation tank, the secondary sedimentation tank further carries out sedimentation treatment on the sewage, and the sewage in the secondary sedimentation tank is conveyed into a second disinfection pond.
9. The wastewater treatment system of claim 1, wherein the wastewater treatment system comprises a wastewater treatment system,
the second disinfection tank monitors water quality.
10. The wastewater treatment system of claim 1, wherein the wastewater treatment system comprises a wastewater treatment system,
the treatment system also comprises a water outlet well;
and water qualified in the second disinfection tank flows into the water outlet well, and is discharged out of the sewage treatment system through the water outlet well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320670637.6U CN219991344U (en) | 2023-03-30 | 2023-03-30 | Sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320670637.6U CN219991344U (en) | 2023-03-30 | 2023-03-30 | Sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991344U true CN219991344U (en) | 2023-11-10 |
Family
ID=88612497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320670637.6U Active CN219991344U (en) | 2023-03-30 | 2023-03-30 | Sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991344U (en) |
-
2023
- 2023-03-30 CN CN202320670637.6U patent/CN219991344U/en active Active
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