CN112408700A - Aerobic precipitation process and special device thereof - Google Patents
Aerobic precipitation process and special device thereof Download PDFInfo
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- CN112408700A CN112408700A CN202011207456.7A CN202011207456A CN112408700A CN 112408700 A CN112408700 A CN 112408700A CN 202011207456 A CN202011207456 A CN 202011207456A CN 112408700 A CN112408700 A CN 112408700A
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- 238000001556 precipitation Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000008569 process Effects 0.000 title claims abstract description 49
- 238000004062 sedimentation Methods 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 21
- 239000010802 sludge Substances 0.000 claims abstract description 19
- 241001148470 aerobic bacillus Species 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000005191 phase separation Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000000701 coagulant Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 238000005485 electric heating Methods 0.000 claims description 11
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 241000588624 Acinetobacter calcoaceticus Species 0.000 claims description 3
- 241000194103 Bacillus pumilus Species 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 13
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
- C02F1/52—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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2209/02—Temperature
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- 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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an aerobic precipitation process and a special device thereof, belonging to the technical field of sewage treatment. Adding the wastewater into an aerobic precipitation module through a water inlet, adding hydrochloric acid to adjust the pH value of the solution, and controlling the solution in the aerobic precipitation module to the reaction temperature; introducing oxygen into the aerobic precipitation module; adding the aerobic bacteria after being uniformly mixed with water, adding a coagulant into the aerobic precipitation module, and stirring by using a stirring paddle; the mixed wastewater is subjected to aerobic sedimentation treatment in an aerobic sedimentation module, solid sludge particles sink to the bottom of an aerobic pool under the action of gravity in the treatment process and are discharged through a sludge discharge port at the bottom, the treated liquid is discharged through an overflow weir and a water outlet pipe, and gas enters an exhaust pipe to realize solid-liquid-gas three-phase separation. The aerobic sedimentation module combines the aerobic tank with the sedimentation module, can replace the traditional secondary sedimentation tank structure, reduces the later sedimentation or filtration load, reduces the SS load of subsequent process section equipment, and ensures that the effluent is stably and continuously discharged up to the standard.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an aerobic precipitation process and a special device thereof.
Background
The sewage treatment system comprises an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are connected in sequence, wherein the adjusting tank is used for adjusting the water quality and the water quantity of the anhydrous water flowing into the adjusting tank; the anaerobic pool is used for gathering phosphorus-accumulating bacteria and releasing phosphorus; the anoxic pond has the function that denitrifying bacteria reduce nitrate nitrogen into nitrogen and discharge the nitrogen into the atmosphere; the aerobic tank is used for degrading organic matters and nitrifying ammonia nitrogen; the sedimentation tank is mainly used for settling solid impurities. The existing sewage treatment system is provided with a flocculation precipitator structure in the follow-up aerobic tank, the equipment investment is increased, and simultaneously, the flocculation precipitation filtration load is also large, the precipitation efficiency is influenced, and the sewage treatment efficiency is influenced.
The three-phase separator is an important part for anaerobic treatment of sewage, and has two functions simultaneously: one is to separate the solid and liquid from the marsh gas generated in the reaction chamber and collect the separated marsh gas, and the other is to separate the water from the sludge by effectively settling the suspended matters in the separator. How to reasonably and efficiently apply the three-phase separator to the sewage treatment process becomes a problem which is continuously explored by people.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to solve the technical problem of providing an aerobic precipitation process, wherein the aerobic precipitation nursing process can be carried out at normal temperature and normal pressure, so that the sewage treatment cost is saved; meanwhile, the separation efficiency is improved, and the use of the medicinal preparation in the sewage treatment process is reduced. Another technical problem to be solved by the invention is to provide a device for an aerobic precipitation process, wherein an aerobic tank and a precipitation module are combined by the aerobic precipitation module, the upper part of the aerobic tank is provided with the precipitation module, and the precipitation module is a gas-water separation module combining a three-phase separation plate and a high-efficiency inclined plate; can replace the traditional secondary sedimentation tank structure, reduce the later-stage sedimentation or filtration load by more than 50%, reduce the SS load of subsequent process section equipment, and ensure that the effluent is stably discharged after reaching the standard continuously.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an aerobic precipitation process, comprising the steps of:
(1) adding wastewater into an aerobic precipitation module through a water inlet, adding hydrochloric acid to adjust the pH value of the solution, and controlling the solution in the aerobic precipitation module to the reaction temperature through a temperature control system; simultaneously introducing oxygen into the aerobic precipitation module through an oxygen pipeline;
(2) adding the mixed aerobic bacteria water into an aerobic precipitation module, adding a coagulant into the aerobic precipitation module through a medicament inlet, and stirring by using a stirring paddle in the device; the mixed wastewater is subjected to aerobic sedimentation treatment in an aerobic sedimentation module, solid sludge particles sink to the bottom of an aerobic pool under the action of gravity in the treatment process and are discharged through a sludge discharge port at the bottom, the treated liquid is discharged through an overflow weir and a water outlet pipe, and gas enters an exhaust pipe to realize solid-liquid-gas three-phase separation.
According to the aerobic precipitation process, the coagulant is a mixture of hydrogen peroxide, ferrous salt and polysilicate aluminum sulfate, and the molar ratio of the hydrogen peroxide to the ferrous salt to the polysilicate aluminum sulfate is 1: 1-3: 2-5.
In the aerobic precipitation process, the dissolved oxygen in the water of the aerobic precipitation module is adjusted to be 3-10 mg/L.
The aerobic precipitation process is characterized in that the pH value of the solution of the aerobic precipitation module is adjusted to be 4-11, the temperature is 25-45 ℃, and the treatment time is 2-5 hours.
In the aerobic precipitation process, the using amount of the aerobic bacteria is 2-3 g/cm3Adding 300-400 kg of water into each gram of aerobic bacteria and uniformly mixing; the aerobic bacteria are acinetobacter calcoaceticus or bacillus pumilus.
The device for the aerobic precipitation process comprises a shell and a plurality of aerobic precipitation modules arranged in the shell, wherein the aerobic precipitation modules are arranged in parallel; the aerobic sedimentation module comprises a water inlet, a medicament inlet, a sedimentation module and an aerobic tank arranged below the sedimentation module; the sedimentation module comprises a three-phase separator and a high-efficiency inclined plate, an air outlet is arranged above the three-phase separator, the high-efficiency inclined plate is connected below the three-phase separator, and a diversion hole is connected below the high-efficiency inclined plate; the air outlet is communicated with the exhaust pipe; a sludge discharge valve is arranged at the bottom of the aerobic tank; the aerobic sedimentation module is provided with a drain pipe.
The device for the aerobic sedimentation process is characterized in that a plurality of aerobic sedimentation modules share one drain pipe, the drain pipe is provided with a water inlet in each aerobic sedimentation module, the water inlet is provided with an overflow weir, and a water outlet pipe of the drain pipe extends out of the shell.
In the device for the aerobic precipitation process, the exhaust port is provided with an exhaust valve, and the sludge discharge port is provided with a sludge discharge valve; and a stirring paddle is arranged at the bottom of the aerobic tank.
In the device for the aerobic sedimentation process, the flow guide hole is provided with a filter screen, and the filter screen is movably arranged on the flow guide hole.
The device for the aerobic sedimentation process, still be equipped with temperature control system in the aerobic sedimentation module, temperature control system includes temperature controller, temperature sensor and electric heating wire all are connected with the temperature controller electricity, electric heating wire locates on the inside wall of aerobic sedimentation module.
The device for the aerobic sedimentation process is characterized in that an oxygen pipeline is arranged in the aerobic sedimentation module, the gas pipeline extends into the lower part of the diversion hole, and oxygen enters the aerobic tank through the oxygen pipeline.
Has the advantages that: compared with the prior art, the invention has the advantages that:
(1) the aerobic sedimentation module combines an aerobic tank with a sedimentation module, the upper part of the aerobic tank is provided with the sedimentation module, and the sedimentation module is a gas-water separation module combining a three-phase separation plate and a high-efficiency inclined plate; can replace the traditional secondary sedimentation tank structure, reduce the later-stage sedimentation or filtration load by more than 50%, reduce the SS load of subsequent process section equipment, and ensure that the effluent is stably discharged after reaching the standard continuously.
(2) The aerobic precipitation nursing process can be carried out at normal temperature and normal pressure, so that the sewage treatment cost is saved; meanwhile, the separation efficiency is improved, and the use of the medicinal preparation in the sewage treatment process is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus for an aerobic precipitation process.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
Example 1
An apparatus for aerobic precipitation process, as shown in figure 1. The device for the aerobic precipitation process comprises a shell 1 and aerobic precipitation modules 2 arranged in the shell 1, wherein a plurality of aerobic precipitation modules 2 are arranged, and the aerobic precipitation modules 2 are arranged in parallel;
the aerobic sedimentation module 2 comprises a water inlet, a medicament inlet, a sedimentation module and an aerobic tank arranged below the sedimentation module; the sedimentation module comprises a three-phase separator 5 and a high-efficiency inclined plate 6, an air outlet is arranged above the three-phase separator 5, the high-efficiency inclined plate 6 is connected below the three-phase separator, a diversion hole 7 is connected below the high-efficiency inclined plate 6, and the upper sedimentation structure and the lower aerobic tank are separated by the diversion hole 7; the diversion holes 7 are provided with filter screens, the filter screens realize further filtering and separation of solid and liquid substances, and the filter screens are movably arranged on the diversion holes, so that the filter screens can be conveniently detached and replaced; the gas outlet is communicated with a gas exhaust pipe 8, the tail end of the gas exhaust pipe 8 is provided with a gas exhaust port 4, and the gas exhaust port 4 is provided with a gas exhaust valve for controlling the untimely exhaust of gas; a sludge discharge port 3 is arranged at the bottom of the aerobic tank, and a sludge discharge valve is arranged on the sludge discharge port 3; the aerobic sedimentation module 2 is provided with a drain pipe 9, the water outlet pipe of the drain pipe 9 extends out of the shell 1, the aerobic sedimentation modules 2 of a plurality of share one drain pipe 9, the drain pipe is provided with a water inlet in each aerobic sedimentation module 2, the water inlet is provided with an overflow weir, and liquid water after three-phase separation enters the drain pipe through the overflow weir.
The aerobic sedimentation module is also internally provided with a temperature control system, the temperature control system comprises a temperature controller, a temperature sensor and an electric heating wire, the temperature sensor and the electric heating wire are both electrically connected with the temperature controller, and the electric heating wire is arranged on the inner side wall of the aerobic sedimentation module; continuously screwing and heating the solution in the aerobic precipitation module after the electric heating wire is opened, transmitting a real-time temperature signal of the solution to the temperature controller by the temperature sensor, and controlling the electric heating wire to be closed and stopping heating by the temperature controller after the preset reaction temperature is reached; when the temperature sensor detects that the temperature of the solution is lower than the preset temperature, the temperature controller controls the electric heating wire to be opened for heating.
An oxygen pipeline is arranged in the aerobic sedimentation module, the gas pipeline extends into the lower part of the flow guide hole, and oxygen enters the aerobic tank through the oxygen pipeline, so that the normal survival of aerobic bacteria in the aerobic sedimentation module is ensured. The bottom of the aerobic tank is provided with a stirring paddle, and after the stirring paddle is started, the dissolution of oxygen can be increased, so that the oxygen concentration of each part in the solution is in a balanced condition, and the separation of solid particles, gas and liquid can be accelerated.
The working process is as follows: adding the wastewater into the aerobic precipitation module 2 through a water inlet, adding hydrochloric acid to adjust the pH value of the solution, and controlling the solution in the aerobic precipitation module 2 to the reaction temperature; introducing oxygen into the aerobic precipitation module; adding the aerobic bacteria after being uniformly mixed with water, adding a coagulant into the aerobic precipitation module, and stirring by using a stirring paddle; the mixed wastewater is subjected to aerobic sedimentation treatment in an aerobic sedimentation module, solid particles 11 sink to the bottom of an aerobic pool under the action of gravity in the treatment process and are discharged through a sludge discharge port 3 at the bottom, the treated liquid is discharged through an overflow weir and a water outlet pipe 9, bubbles 10 continuously move upwards, and after reaching a page, gas in the liquid enters an exhaust pipe 8 and is discharged through an exhaust port 4, so that three-phase separation of solid, liquid and gas is realized.
The device for the aerobic sedimentation process combines an aerobic tank with a sedimentation module, the upper part of the aerobic tank is provided with the sedimentation module, and the sedimentation module is a gas-water separation module combining a three-phase separation plate and a high-efficiency inclined plate; can replace the traditional secondary sedimentation tank structure, reduce the later-stage sedimentation or filtration load by more than 50%, reduce the SS load of subsequent process section equipment, and ensure that the effluent is stably discharged after reaching the standard continuously.
Example 2
An aerobic precipitation process, comprising the steps of:
(1) adding wastewater into an aerobic precipitation module through a water inlet, adding hydrochloric acid to adjust the pH value of a solution to be 4-11, controlling the solution in the aerobic precipitation module to react at a temperature of 25-45 ℃ through a temperature control system, and treating for 2-5 hours; simultaneously introducing oxygen into the aerobic precipitation module through an oxygen pipeline; adjusting the dissolved oxygen in the aerobic precipitation module water to be 3-10 mg/L;
(2) the using amount of the aerobic bacteria is 2-3 g/cm3Adding 300-400 kg of water into each gram of aerobic bacteria, uniformly mixing, and adding into an aerobic precipitation module, wherein the aerobic bacteria select acinetobacter calcoaceticus or bacillus pumilus; adding a mixture of hydrogen peroxide, ferrous salt and polysilicate aluminum sulfate (the molar ratio of the hydrogen peroxide to the ferrous salt to the polysilicate aluminum sulfate is 1: 1-3: 2-5) into an aerobic precipitation module through a medicament inlet, and stirring by using a stirring paddle in the device; the mixed wastewater is subjected to aerobic sedimentation treatment in an aerobic sedimentation module, solid sludge particles sink to the bottom of an aerobic pool under the action of gravity in the treatment process and are discharged through a sludge discharge port at the bottom, the treated liquid is discharged through an overflow weir and a water outlet pipe, and gas enters an exhaust pipe to realize solid-liquid-gas three-phase separation.
The aerobic precipitation nursing process can be carried out at normal temperature and normal pressure, so that the sewage treatment cost is saved; meanwhile, the separation efficiency is improved, and the use of the medicinal preparation in the sewage treatment process is reduced.
Claims (10)
1. An aerobic precipitation process, which is characterized by comprising the following steps:
(1) adding wastewater into an aerobic precipitation module through a water inlet, adding hydrochloric acid to adjust the pH value of the solution, and controlling the solution in the aerobic precipitation module to the reaction temperature through a temperature control system; simultaneously introducing oxygen into the aerobic precipitation module through an oxygen pipeline;
(2) adding the mixed aerobic bacteria water into an aerobic precipitation module, adding a coagulant into the aerobic precipitation module through a medicament inlet, and stirring by using a stirring paddle in the device; the mixed wastewater is subjected to aerobic sedimentation treatment in an aerobic sedimentation module, solid sludge particles sink to the bottom of an aerobic pool under the action of gravity in the treatment process and are discharged through a sludge discharge port at the bottom, the treated liquid is discharged through an overflow weir and a water outlet pipe, and gas enters an exhaust pipe to realize solid-liquid-gas three-phase separation.
2. The aerobic precipitation process according to claim 1, wherein the mass of the flocculant added to each cubic meter of wastewater is 0.5-1.0 kg; the coagulant is a mixture of hydrogen peroxide, ferrous salt and polysilicate aluminum sulfate, and the molar ratio of the hydrogen peroxide to the ferrous salt to the polysilicate aluminum sulfate is 1: 1-3: 2-5; the concentration of dissolved oxygen is 3-10 mg/L.
3. The aerobic precipitation process of claim 1, wherein the pH of the aerobic precipitation module solution is adjusted to 4-11, the temperature is adjusted to 25-45 ℃, and the treatment time is 2-5 h.
4. The aerobic precipitation process of claim 1, wherein the amount of the aerobic bacteria is 2 to 3g/cm3Adding 300-400 kg of water into each gram of aerobic bacteria and uniformly mixing; the aerobic bacteria are acinetobacter calcoaceticus or bacillus pumilus.
5. The device for the aerobic precipitation process is characterized by comprising a shell (1) and a plurality of aerobic precipitation modules (2) arranged in the shell (1), wherein the aerobic precipitation modules (2) are arranged in parallel; the aerobic sedimentation module (2) comprises a water inlet, a medicament inlet, a sedimentation module and an aerobic tank arranged below the sedimentation module; the sedimentation module comprises a three-phase separator (5) and a high-efficiency inclined plate (6), an air outlet is arranged above the three-phase separator (5), the high-efficiency inclined plate (6) is connected below the three-phase separator, and a diversion hole (7) is connected below the high-efficiency inclined plate (6); the air outlet is communicated with an exhaust pipe (8); a sludge discharge valve is arranged at the bottom of the aerobic tank; the aerobic sedimentation module (2) is provided with a drain pipe (9).
6. The apparatus for an aerobic sedimentation process according to claim 5, wherein a plurality of aerobic sedimentation modules (2) share a drain pipe (9), the drain pipe is provided with a water inlet in each aerobic sedimentation module (2), the water inlet is provided with an overflow weir, and a water outlet pipe of the drain pipe (9) extends out of the housing (1).
7. The apparatus for an aerobic sedimentation process according to claim 5, wherein the exhaust port (4) is provided with an exhaust valve, and the sludge discharge port (3) is provided with a sludge discharge valve; and a stirring paddle is arranged at the bottom of the aerobic tank.
8. The device for the aerobic sedimentation process according to claim 5, wherein the diversion hole (7) is provided with a filter screen, and the filter screen is movably arranged on the diversion hole.
9. The apparatus for aerobic sedimentation process according to claim 5, wherein a temperature control system is further disposed in the aerobic sedimentation module, the temperature control system comprises a temperature controller, a temperature sensor and an electric heating wire, the temperature sensor and the electric heating wire are both electrically connected to the temperature controller, and the electric heating wire is disposed on the inner sidewall of the aerobic sedimentation module.
10. The apparatus for aerobic sedimentation process according to claim 5, wherein the aerobic sedimentation module is provided with an oxygen pipeline, the gas pipeline extends into the lower part of the diversion hole, and oxygen enters the aerobic tank through the oxygen pipeline.
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| CN202011207456.7A CN112408700A (en) | 2020-11-03 | 2020-11-03 | Aerobic precipitation process and special device thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336337A (en) * | 1995-10-27 | 2002-02-20 | 三洸水机株式会社 | Sewer/waste-water treatment equipment |
| CN102815784A (en) * | 2012-08-29 | 2012-12-12 | 深圳清华大学研究院 | Aerobic three-phase separator and application method thereof in sewage treatment |
| CN103819050A (en) * | 2014-02-14 | 2014-05-28 | 常州大学 | Method for processing high-density PVA-containing desizing wastewater and device thereof |
| CN108147534A (en) * | 2016-12-06 | 2018-06-12 | 帕克环保技术(上海)有限公司 | Nitration denitrification integrated bioreactor |
| CN108298764A (en) * | 2018-01-16 | 2018-07-20 | 常州大学 | Oilfield acidized wastewater processing unit |
-
2020
- 2020-11-03 CN CN202011207456.7A patent/CN112408700A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336337A (en) * | 1995-10-27 | 2002-02-20 | 三洸水机株式会社 | Sewer/waste-water treatment equipment |
| CN102815784A (en) * | 2012-08-29 | 2012-12-12 | 深圳清华大学研究院 | Aerobic three-phase separator and application method thereof in sewage treatment |
| CN103819050A (en) * | 2014-02-14 | 2014-05-28 | 常州大学 | Method for processing high-density PVA-containing desizing wastewater and device thereof |
| CN108147534A (en) * | 2016-12-06 | 2018-06-12 | 帕克环保技术(上海)有限公司 | Nitration denitrification integrated bioreactor |
| CN108298764A (en) * | 2018-01-16 | 2018-07-20 | 常州大学 | Oilfield acidized wastewater processing unit |
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Application publication date: 20210226 |