CN112978916A - Hydraulic circulation mode of continuous flow domestic sewage treatment equipment - Google Patents
Hydraulic circulation mode of continuous flow domestic sewage treatment equipment Download PDFInfo
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- CN112978916A CN112978916A CN201911293754.XA CN201911293754A CN112978916A CN 112978916 A CN112978916 A CN 112978916A CN 201911293754 A CN201911293754 A CN 201911293754A CN 112978916 A CN112978916 A CN 112978916A
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- sewage
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- hydraulic
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- 239000010865 sewage Substances 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000014759 maintenance of location Effects 0.000 claims abstract description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 239000011574 phosphorus Substances 0.000 claims description 15
- 238000010790 dilution Methods 0.000 claims description 12
- 239000012895 dilution Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
Abstract
A hydraulic circulation mode of continuous flow domestic sewage treatment equipment comprises staged water inflow, which is divided into front section inflow and rear section inflow, wherein the front section sewage enters a first sewage tank, the rear section enters water by baffling, the flow velocity of the front section inflow water is 0.2m/s to 0.27m/s, the hydraulic retention time of the front section is 0.7h to 1h, the rear section enters water by baffling, the flow velocity of the rear section inflow water is 0.3m/s to 0.35m/s, and the hydraulic retention time of the rear section is 1h to 1.44 h. The invention can control hydraulic circulation by controlling hydraulic retention time and flow velocity, and is suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of domestic sewage treatment, in particular to a hydraulic circulation mode of continuous flow domestic sewage treatment equipment.
Background
Modern sewage treatment technology is divided into primary, secondary and tertiary treatment technologies according to treatment degree. The first stage treatment of sewage is carried out by removing insoluble suspended solids and floating substances from sewage by physical methods such as screening, sedimentation, etc. The secondary treatment of sewage is mainly a biological treatment method, namely a process of substance conversion through the metabolism of microorganisms, and various complex organic substances in the sewage are oxidized and degraded into simple substances. The biological treatment has certain requirements on the quality of sewage, the temperature of water, the dissolved oxygen amount in water, the pH value and the like. The third-stage sewage treatment is to remove insoluble organic matters, phosphorus, nitrogen and other nutritive substances in sewage by physical and chemical methods such as coagulation, filtration, ion exchange, reverse osmosis and the like on the basis of the first-stage treatment and the second-stage treatment. The composition of pollutants in sewage is very complex, and the combination of the methods is often needed to meet the treatment requirement.
The hydraulic circulation mode of the existing continuous flow domestic sewage treatment equipment is controlled more complicated, and the hydraulic circulation mode is controlled by controlling the hydraulic retention time, so that the control is not accurate enough and is not suitable for popularization and use.
Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a hydraulic circulation mode of a continuous flow domestic sewage treatment device, which can effectively solve the technical problems.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
a hydraulic circulation mode of continuous flow domestic sewage treatment equipment is characterized in that water is fed in sections and divided into front section water feeding and rear section water feeding, the front section sewage enters a first sewage tank, and the rear section sewage enters a second sewage tank; the flow velocity of the front section inflow water flow is between 0.2m/s and 0.27m/s, the hydraulic retention time of the front section is between 0.7h and 1h, the rear section inflow water is baffled, the flow velocity of the rear section inflow water flow is between 0.3m/s and 0.35m/s, and the hydraulic retention time of the rear section is between 1h and 1.44 h.
Further: the front stage phosphorus dilution ratio is between 0.3 and 0.68, and the rear stage phosphorus dilution ratio is below 0.16.
Further: the inner diameter of the deflection hole of the rear section water inlet is larger than that of the front section water inlet pipe.
Compared with the prior art, the invention has the following beneficial effects: the hydraulic circulation mode of the continuous flow domestic sewage treatment equipment can control hydraulic circulation by controlling hydraulic retention time and flow velocity, and is suitable for popularization and application.
Drawings
FIG. 1 is a schematic diagram of a hydraulic circulation system of a continuous flow domestic sewage treatment apparatus according to the present invention.
In the figure: 1 is a water storage tank, 2 is a first sewage tank, 3 is a second sewage tank, 4 is a water distribution channel, 5 is a first buffer tank, 6 is a second buffer tank, 7 is a stirring device, and 8 is a detection device.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
The hydraulic circulation mode of the continuous flow domestic sewage treatment equipment of the invention will be clearly and completely explained in the following with the attached drawings.
As shown in figure 1, the hydraulic circulation mode equipment of the continuous flow domestic sewage treatment equipment comprises a water storage tank 1, wherein the COD concentration of sewage entering the water storage tank 1 is 300mg/L to 500mg/L, the total phosphorus concentration is 6mg/L to 9mg/L, and the total nitrogen concentration 50mg/L is 80 mg/L; the first sewage tank 2 is used for treating a part of sewage; the second sewage tank 3 is used for treating the other part of sewage; the water distribution channel 4 is used for distributing water; a first buffer tank 5 for storing sludge and the like; a second buffer tank 6 for storing sludge and the like; the stirring device 7, including but not limited to a mechanical stirring device and a gas stirring device, is selected according to the needs, and the installation method and the use method thereof are common knowledge and are not described herein; the detection device 8 includes, but is not limited to, a phosphorus concentration detection device, a nitrogen concentration detection device, a COD concentration detection device, a pH detection device, a sludge concentration detection device, etc., and the installation method and the using method thereof are common knowledge and thus are not described herein.
The hydraulic circulation mode of the continuous flow domestic sewage treatment equipment comprises sectional water inflow, which is divided into front section water inflow and rear section water inflow, wherein the front section sewage enters a first sewage tank 2, and the rear section sewage enters a second sewage tank 3; the flow velocity of the inflow water of the front section is between 0.2m/s and 0.27m/s, the hydraulic retention time of the front section is between 0.7h and 1h, the water is fed by baffling of the rear section, the flow velocity of the inflow water is between 0.3m/s and 0.35m/s, and the hydraulic retention time of the rear section is between 1h and 1.44 h.
Wherein: the front stage phosphorus dilution ratio is between 0.3 and 0.68, and the rear stage phosphorus dilution ratio is below 0.16.
Wherein: the inner diameter of the deflection hole of the rear section water inlet is larger than that of the front section water inlet pipe.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some embodiments of the present invention, but not all embodiments.
The first embodiment is as follows:
the front section of sewage enters a first sewage tank, and the rear section of sewage enters a second sewage tank; the flow velocity of the front section inflow water flow is 0.2m/s, the hydraulic retention time of the front section is 0.7h, the back section inflow water is baffled, the flow velocity of the back section inflow water flow is 0.3m/s, the hydraulic retention time of the back section is 1h, the phosphorus dilution ratio of the front section is 0.3, and the phosphorus dilution ratio of the back section is 0.16.
Example two:
the front section of sewage enters a first sewage tank, and the rear section of sewage enters a second sewage tank; the flow velocity of the front section inflow water flow is 0.25m/s, the hydraulic retention time of the front section is 0.8h, the back section inflow water is baffled, the flow velocity of the back section inflow water flow is 0.34m/s, the hydraulic retention time of the back section is 1.21h, the phosphorus dilution ratio of the front section is 0.5, and the phosphorus dilution ratio of the back section is 0.1.
Example three:
the front section of sewage enters a first sewage tank, and the rear section of sewage enters a second sewage tank; the flow velocity of the front section inflow water flow is 0.27m/s, the hydraulic retention time of the front section is 1h, the rear section inflow water is baffled, the flow velocity of the rear section inflow water flow is 0.35m/s, the hydraulic retention time of the rear section is 1.44h, the phosphorus dilution ratio of the front section is 0.68, and the phosphorus dilution ratio of the rear section is 0.12.
The invention has the following beneficial effects: the hydraulic circulation mode of the continuous flow domestic sewage treatment equipment can control hydraulic circulation by controlling hydraulic retention time and flow velocity, and is suitable for popularization and application.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (3)
1. A hydraulic circulation mode of a continuous flow domestic sewage treatment device is characterized in that: the method comprises the following steps:
the method comprises the following steps of (1) feeding water in a segmented mode, wherein the water feeding is divided into front-segment water feeding and rear-segment water feeding, the front-segment sewage enters a first sewage tank, and the rear-segment sewage enters a second sewage tank; the flow velocity of the front section inflow water flow is between 0.2m/s and 0.27m/s, the hydraulic retention time of the front section is between 0.7h and 1h, the rear section inflow water is baffled, the flow velocity of the rear section inflow water flow is between 0.3m/s and 0.35m/s, and the hydraulic retention time of the rear section is between 1h and 1.44 h.
2. The continuous flow domestic sewage treatment facility hydraulic circulation pattern of claim 1, wherein: the front stage phosphorus dilution ratio is between 0.3 and 0.68, and the rear stage phosphorus dilution ratio is below 0.16.
3. The continuous flow domestic sewage treatment facility hydraulic circulation pattern of claim 1, wherein: the inner diameter of the deflection hole of the rear section water inlet is larger than that of the front section water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293754.XA CN112978916A (en) | 2019-12-16 | 2019-12-16 | Hydraulic circulation mode of continuous flow domestic sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293754.XA CN112978916A (en) | 2019-12-16 | 2019-12-16 | Hydraulic circulation mode of continuous flow domestic sewage treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112978916A true CN112978916A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911293754.XA Pending CN112978916A (en) | 2019-12-16 | 2019-12-16 | Hydraulic circulation mode of continuous flow domestic sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112978916A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767916A (en) * | 2010-02-01 | 2010-07-07 | 中国市政工程华北设计研究总院 | Method for reasonably optimizing and distributing carbon source in treatment of refractory wastewater |
| GB201809651D0 (en) * | 2018-06-13 | 2018-08-01 | Univ Chengdu Information Technology | Integrated treatment technology device for swine wastewater |
| CN110078319A (en) * | 2019-06-11 | 2019-08-02 | 湖南艾布鲁环保科技股份有限公司 | Rural area distributing microkinetic biological treatment device for sewage and the sewage disposal system comprising it |
| CN110104774A (en) * | 2019-05-21 | 2019-08-09 | 北京工业大学 | Continuous flow segmental influent, sludge and fermented sludge segment reflux part denitrification/Anammox Treating Municipal Sewage device |
-
2019
- 2019-12-16 CN CN201911293754.XA patent/CN112978916A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767916A (en) * | 2010-02-01 | 2010-07-07 | 中国市政工程华北设计研究总院 | Method for reasonably optimizing and distributing carbon source in treatment of refractory wastewater |
| GB201809651D0 (en) * | 2018-06-13 | 2018-08-01 | Univ Chengdu Information Technology | Integrated treatment technology device for swine wastewater |
| CN110104774A (en) * | 2019-05-21 | 2019-08-09 | 北京工业大学 | Continuous flow segmental influent, sludge and fermented sludge segment reflux part denitrification/Anammox Treating Municipal Sewage device |
| CN110078319A (en) * | 2019-06-11 | 2019-08-02 | 湖南艾布鲁环保科技股份有限公司 | Rural area distributing microkinetic biological treatment device for sewage and the sewage disposal system comprising it |
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