CN111792802A - Sewage treatment process for large sewage treatment station - Google Patents
Sewage treatment process for large sewage treatment station Download PDFInfo
- Publication number
- CN111792802A CN111792802A CN202010839948.1A CN202010839948A CN111792802A CN 111792802 A CN111792802 A CN 111792802A CN 202010839948 A CN202010839948 A CN 202010839948A CN 111792802 A CN111792802 A CN 111792802A
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- Prior art keywords
- sewage
- sewage treatment
- conveying
- treatment process
- tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 19
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 8
- 239000013049 sediment Substances 0.000 claims abstract description 7
- 238000011897 real-time detection Methods 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 239000010414 supernatant solution Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 4
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000008394 flocculating agent Substances 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention provides a sewage treatment process for a large-scale sewage treatment station, and relates to the field of sewage treatment. The sewage treatment process of the large-scale sewage treatment station comprises the following specific treatment steps: s1, introducing sewage into a sewage concentration tank through a catch basin, filtering large slag in the sewage through a coarse grid, then utilizing a lifting pump to lift the height of the sewage, filtering small slag in the sewage through a fine grid, S2, conveying the filtered sewage to an aeration grit chamber through a screw machine and a sewage pump, removing sand in the sewage and forming sediment by a sand remover after the sewage enters the aeration grit chamber, and carrying out aeration treatment on the sewage. Through reasonable improvement to sewage treatment process for increase that can be great when carrying out sewage treatment is to the effect of getting rid of miscellaneous material in the sewage, and then reduces the load of sewage treatment station, and carries out real-time detection to sewage at the in-process of handling, provides the guarantee for sewage treatment.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment process for a large-scale sewage treatment station.
Background
Sewage is the effluent from life and production that is contaminated to some extent. The water which loses the original use function is called sewage for short, so that the sewage is generated more and more in production and life along with more and more demands of people on water resources at present, and the sewage treatment is an important task at present in order to meet the long-term demands of people on water resources.
At present, in a sewage treatment station, the treatment capacity of sewage is huge, but the effect of adopting the traditional sewage treatment mode is not ideal, and the load of the sewage treatment station is increased, so that the further improvement of the sewage treatment process is necessary.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a sewage treatment process for a large-scale sewage treatment station, which solves the problems that the traditional sewage treatment mode has not ideal effect and the load of the sewage treatment station is increased.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a sewage treatment process for a large-scale sewage treatment station comprises the following specific treatment steps:
s1, introducing sewage into a sewage concentration tank through a catch basin, filtering large slag in the sewage through a coarse grid, then lifting the height of the sewage through a lift pump, and filtering small slag in the sewage through a fine grid;
s2, conveying the filtered sewage to an aeration grit chamber by using a screw machine and a sewage pump, removing sand in the sewage by using a sand remover to form sediment in the sewage, and carrying out aeration treatment on the sewage;
s3, conveying the sewage passing through the aeration grit chamber to the interior of the metering channel by a sewage pump to perform real-time detection on the sewage;
s4, conveying the sewage passing through the measuring channel to a biological pond, providing a living environment for microorganisms in the biological pond by using an oxygen dissolving instrument and an aeration mode, and performing stirring treatment by using a submersible stirrer;
s5, conveying the sewage treated by the biological tank to a concentration tank through a water skimmer, and concentrating the sewage by using a central transmission concentrator so as to discharge a supernatant solution in the concentration tank;
s6, conveying the concentrated sludge to a dewatering machine room, crushing the sludge in the dewatering machine room by a sludge crusher, dewatering the sludge under the action of a centrifugal dewatering machine, adding a carbon source to the sludge by using a dosing pump, and removing the treated sludge by using a shaftless screw conveyor;
s7, conveying the supernatant solution in the S5 to a denitrification tank for treatment;
s8, conveying the sewage treated by the denitrification tank into a high-efficiency sedimentation tank, adding a flocculating agent into the high-efficiency sedimentation tank, and stirring the sewage by using a stirrer to form sediment in the sewage;
s9, conveying the solution passing through the efficient sedimentation tank to a disinfection chamber, disinfecting and sterilizing the disinfection chamber by using ultraviolet rays, and finally discharging the purified sewage.
Preferably, the diameter of the meshes of the coarse grid in the S1 is 1.5-3cm, and the diameter of the meshes of the fine grid is 0.5-1.5 cm.
Preferably, aerators are arranged inside the aeration grit chamber in the S2 and the biological tank in the S4, and the air is supplied to the aerators by a Roots blower.
Preferably, the metering channel in the step S3 is provided with an online flowmeter, a thermometer and a PH meter, and is used for detecting sewage in real time.
Preferably, the carbon source in S6 is at least one of methanol, sodium acetate and sodium hypochlorite.
Preferably, the stirring speed of the stirrer in the S8 is 2-5 r/min.
(III) advantageous effects
The invention provides a sewage treatment process for a large-scale sewage treatment station. The method has the following beneficial effects:
1. through the reasonable improvement to sewage treatment process for increase that can be great when carrying out sewage treatment is to the effect of getting rid of miscellaneous material in the sewage, and then reduces the load of sewage treatment station, and carry out real-time detection to sewage at the in-process of handling, provide the guarantee for sewage treatment, have positive effect to sewage treatment.
2. By treating the sludge, the process can reduce the cost of post treatment when the sludge is treated, and reduce the secondary pollution to the environment.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example (b):
the embodiment of the invention provides a sewage treatment process for a large-scale sewage treatment station, which comprises the following specific treatment steps:
s1, introducing sewage into a sewage concentration tank through a catch basin, filtering large slag in the sewage through a coarse grid, then lifting the height of the sewage through a lift pump, and filtering small slag in the sewage through a fine grid;
s2, conveying the filtered sewage to an aeration grit chamber by using a screw machine and a sewage pump, removing sand in the sewage by using a sand remover to form sediment in the sewage, and carrying out aeration treatment on the sewage;
s3, conveying the sewage passing through the aeration grit chamber to the interior of the metering channel by a sewage pump to perform real-time detection on the sewage;
s4, conveying the sewage passing through the measuring channel to a biological pond, providing a living environment for microorganisms in the biological pond by using an oxygen dissolving instrument and an aeration mode, and performing stirring treatment by using a submersible stirrer;
s5, conveying the sewage treated by the biological tank to a concentration tank through a water skimmer, and concentrating the sewage by using a central transmission concentrator so as to discharge a supernatant solution in the concentration tank;
s6, conveying the concentrated sludge to a dewatering machine room, crushing the sludge in the dewatering machine room by a sludge crusher, dewatering the sludge under the action of a centrifugal dewatering machine, adding a carbon source to the sludge by using a dosing pump, and removing the treated sludge by using a shaftless screw conveyor;
s7, conveying the supernatant solution in the S5 to a denitrification tank for treatment;
s8, conveying the sewage treated by the denitrification tank into a high-efficiency sedimentation tank, adding a flocculating agent into the high-efficiency sedimentation tank, and stirring the sewage by using a stirrer to form sediment in the sewage;
s9, conveying the solution passing through the efficient sedimentation tank to a disinfection chamber, disinfecting and sterilizing the disinfection chamber by using ultraviolet rays, and finally discharging the purified sewage.
Wherein the diameter of the meshes of the coarse grid in S1 is 1.5-3cm, and the diameter of the meshes of the fine grid is 0.5-1.5 cm.
Wherein aerators are arranged in the aeration grit chamber in the S2 and the biological tank in the S4, and a Roots blower is used for supplying air to the aerators.
Wherein, the measuring channel in S3 is provided with an on-line flowmeter, a thermometer and a PH meter for real-time detection of sewage.
Wherein the carbon source in S6 is at least one of methanol, sodium acetate and sodium hypochlorite.
Wherein the stirring speed of the stirrer in the S8 is 2-5 r/min.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A sewage treatment process of a large-scale sewage treatment station is characterized in that: the method comprises the following specific processing steps:
s1, introducing sewage into a sewage concentration tank through a catch basin, filtering large slag in the sewage through a coarse grid, then lifting the height of the sewage through a lift pump, and filtering small slag in the sewage through a fine grid;
s2, conveying the filtered sewage to an aeration grit chamber by using a screw machine and a sewage pump, removing sand in the sewage by using a sand remover to form sediment in the sewage, and carrying out aeration treatment on the sewage;
s3, conveying the sewage passing through the aeration grit chamber to the interior of the metering channel by a sewage pump to perform real-time detection on the sewage;
s4, conveying the sewage passing through the measuring channel to a biological pond, providing a living environment for microorganisms in the biological pond by using an oxygen dissolving instrument and an aeration mode, and performing stirring treatment by using a submersible stirrer;
s5, conveying the sewage treated by the biological tank to a concentration tank through a water skimmer, and concentrating the sewage by using a central transmission concentrator so as to discharge a supernatant solution in the concentration tank;
s6, conveying the concentrated sludge to a dewatering machine room, crushing the sludge in the dewatering machine room by a sludge crusher, dewatering the sludge under the action of a centrifugal dewatering machine, adding a carbon source to the sludge by using a dosing pump, and removing the treated sludge by using a shaftless screw conveyor;
s7, conveying the supernatant solution in the S5 to a denitrification tank for treatment;
s8, conveying the sewage treated by the denitrification tank into a high-efficiency sedimentation tank, adding a flocculating agent into the high-efficiency sedimentation tank, and stirring the sewage by using a stirrer to form sediment in the sewage;
s9, conveying the solution passing through the efficient sedimentation tank to a disinfection chamber, disinfecting and sterilizing the disinfection chamber by using ultraviolet rays, and finally discharging the purified sewage.
2. The sewage treatment process of the large-scale sewage treatment station according to claim 1, characterized in that: the diameter of meshes of the coarse grid in the S1 is 1.5-3cm, and the diameter of meshes of the fine grid is 0.5-1.5 cm.
3. The sewage treatment process of the large-scale sewage treatment station according to claim 1, characterized in that: aerators are arranged in the S2 aeration grit chamber and the S4 biological tank, and a Roots blower is used for supplying air to the aerators.
4. The sewage treatment process of the large-scale sewage treatment station according to claim 1, characterized in that: and an online flowmeter, a thermometer and a PH meter are arranged in the metering channel in the S3, and the sewage is detected in real time.
5. The sewage treatment process of the large-scale sewage treatment station according to claim 1, characterized in that: the carbon source in the S6 is at least one of methanol, sodium acetate and sodium hypochlorite.
6. The sewage treatment process of the large-scale sewage treatment station according to claim 1, characterized in that: and the stirring speed of the stirrer in the S8 is 2-5 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839948.1A CN111792802A (en) | 2020-08-19 | 2020-08-19 | Sewage treatment process for large sewage treatment station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010839948.1A CN111792802A (en) | 2020-08-19 | 2020-08-19 | Sewage treatment process for large sewage treatment station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111792802A true CN111792802A (en) | 2020-10-20 |
Family
ID=72833826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010839948.1A Pending CN111792802A (en) | 2020-08-19 | 2020-08-19 | Sewage treatment process for large sewage treatment station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111792802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634285A (en) * | 2022-05-20 | 2022-06-17 | 广州云舟智慧城市勘测设计有限公司 | Novel municipal wastewater cyclic treatment that anti-blocking easily carried is prevented in environmental protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103395946A (en) * | 2013-08-17 | 2013-11-20 | 哈尔滨金大环境工程有限公司 | Low-energy-consumption wastewater treatment technological process |
| CN105884144A (en) * | 2016-06-16 | 2016-08-24 | 安徽国能亿盛环保科技有限公司 | Process for efficiently treating sewage |
| CN108341553A (en) * | 2018-03-14 | 2018-07-31 | 湖北双环科技股份有限公司 | A kind of method of biofilm combination BAF group technologies processing high ammonia-nitrogen wastewater |
| CN208071526U (en) * | 2017-12-08 | 2018-11-09 | 郑仕雪 | A kind of town sewage total system |
| CN209143949U (en) * | 2018-09-11 | 2019-07-23 | 山东纳宇环保科技股份有限公司 | A kind of trade effluent centralized processing purification system |
-
2020
- 2020-08-19 CN CN202010839948.1A patent/CN111792802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395946A (en) * | 2013-08-17 | 2013-11-20 | 哈尔滨金大环境工程有限公司 | Low-energy-consumption wastewater treatment technological process |
| CN105884144A (en) * | 2016-06-16 | 2016-08-24 | 安徽国能亿盛环保科技有限公司 | Process for efficiently treating sewage |
| CN208071526U (en) * | 2017-12-08 | 2018-11-09 | 郑仕雪 | A kind of town sewage total system |
| CN108341553A (en) * | 2018-03-14 | 2018-07-31 | 湖北双环科技股份有限公司 | A kind of method of biofilm combination BAF group technologies processing high ammonia-nitrogen wastewater |
| CN209143949U (en) * | 2018-09-11 | 2019-07-23 | 山东纳宇环保科技股份有限公司 | A kind of trade effluent centralized processing purification system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634285A (en) * | 2022-05-20 | 2022-06-17 | 广州云舟智慧城市勘测设计有限公司 | Novel municipal wastewater cyclic treatment that anti-blocking easily carried is prevented in environmental protection device |
| CN114634285B (en) * | 2022-05-20 | 2023-09-22 | 临沂旭阳环境科技有限公司 | Novel environmental protection prevents stifled municipal wastewater circulation treatment who easily carries device |
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Application publication date: 20201020 |