CN112499899A - Modular sewage treatment system and treatment process - Google Patents
Modular sewage treatment system and treatment process Download PDFInfo
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- CN112499899A CN112499899A CN202011335450.8A CN202011335450A CN112499899A CN 112499899 A CN112499899 A CN 112499899A CN 202011335450 A CN202011335450 A CN 202011335450A CN 112499899 A CN112499899 A CN 112499899A
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 62
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- 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 claims description 25
- 244000005700 microbiome Species 0.000 claims description 25
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- 101710154778 Thymidylate synthase 1 Proteins 0.000 claims description 18
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- 238000006731 degradation reaction Methods 0.000 claims description 13
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- 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
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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]
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
The invention discloses a modular sewage treatment system and a treatment process, comprising a first reaction chamber, a second reaction chamber, a third reaction chamber and a settling tank; the first reaction chamber, the second reaction chamber and the third reaction chamber are sequentially connected through a pipeline and are finally communicated with a precipitation tank; the first reaction chamber, the second reaction chamber and the third reaction chamber are all provided with a blocking mechanism for partitioning; the first reaction chamber is internally provided with a first separation structure which divides the first reaction chamber into an inner cavity and an outer cavity, the inner cavity is communicated with the sewage inlet, and the outer cavity is internally provided with a first aeration system; the second reaction chamber is internally provided with a second blocking structure, the second reaction chamber is divided into a left chamber and a right chamber with the same volume ratio through the second blocking structure, and a second aeration system and a third aeration system are respectively and independently arranged in the left chamber and the right chamber; and the second aeration system and/or the third aeration system are used for carrying out aeration operation on the chambers in which the aeration systems are respectively arranged independently or simultaneously.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a modular sewage treatment system and a treatment process.
Background
The current common equipment-based sewage treatment process in China is A20+MBBR、SBR、MBR、A2O and an improved process thereof, and the like, wherein the processes are based on a mature activated sludge method or a mixed process of activated sludge and a biomembrane method, but the general adaptability is poor. The design can investigate the quality of the sewage in the early stage of the scheme, and some water quality investigations even lack the early stage. The collected water sample with water quality investigation is also a random sample in a certain time period, the representativeness is poor, and the fluctuation of the sewage quality along with factors such as holidays, seasons, temperature, flood seasons and the like is large, so that in the design of a scheme, in order to improve the standard reaching rate of the water quality, the design value parameters are considered conservatively, but great waste is caused. The processes are disposable in flow, and process section adjustment and parameter adjustment cannot be performed according to changes of various factors, so that the processes conform to the current water quality as much as possible, and the effective space is utilized to the maximum extent.
However, the traditional sewage treatment system and the technology have the following problems:
1) the total nitrogen removal rate is low;
2) the quality of the effluent is unstable;
3) limited impact load resistance;
4) the control logic is complicated, the operation is complex, the controllability is poor, and the personnel dependence is high;
5) the design is different from the actual design in one time, and the adjustability is poor;
6) and the operation cost is higher.
Disclosure of Invention
The invention aims to solve the problems in the prior art that the sewage treatment is low in total nitrogen removal rate, unstable in effluent quality, limited in impact load resistance, complex in control logic, complex in operation, poor in controllability, high in personnel dependence, disposable, large in difference between design and actual and poor in adjustability.
The technical scheme adopted by the invention is as follows:
a modularized sewage treatment system comprises a first reaction chamber, a second reaction chamber, a third reaction chamber and a settling tank; the first reaction chamber, the second reaction chamber and the third reaction chamber are sequentially connected through a pipeline and are finally communicated with a precipitation tank; and the first reaction chamber, the second reaction chamber and the third reaction chamber are all provided with a blocking mechanism for dividing the reaction chambers into areas.
Preferably, a first blocking structure is arranged in the first reaction chamber, the first blocking structure divides the first reaction chamber into an inner cavity and an outer cavity, the inner cavity is communicated with the sewage inlet, and a first aeration system is arranged in the outer cavity.
Preferably, a second barrier structure is arranged in the second reaction chamber, the second reaction chamber is divided into a left chamber and a right chamber with the same volume ratio through the second barrier structure, and a second aeration system and a third aeration system are respectively and independently arranged in the left chamber and the right chamber; and the second aeration system and/or the third aeration system are used for carrying out aeration operation on the chambers in which the aeration systems are respectively arranged independently or simultaneously.
Preferably, a third barrier structure is arranged in the third reaction chamber, and the third reaction chamber is divided into a left chamber and a right chamber with the same volume ratio by the third barrier structure; and a fourth aeration system is arranged in the right chamber, and the right chamber is aerated through the fourth aeration system.
The system adopts TS-A3O3Treating the sewage as a main process; wherein the inner cavity is an A1 pool, the outer cavity is an O1 pool, the left chamber of the second reaction chamber is an A2 pool, the right chamber of the second reaction chamber is an O2 pool, the left chamber of the third reaction chamber is an A3 pool, and the right chamber of the third reaction chamber is an O3 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, an A2 pool and an A3 pool, the water inlet proportion can be adjusted by a valve, most of the sewage enters equipment through the A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into an inlet O1 tankThe aeration system in the O1 pool melts air into sewage, removes most organic matters in the sewage under the degradation action of aerobic microorganisms, and simultaneously nitrifies ammonia nitrogen in the sewage to convert the ammonia nitrogen into nitrate nitrogen and nitrite nitrogen; then the sewage enters an A2 pool, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and influent organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; then the sewage enters an O2 pool to further nitrify ammonia nitrogen in the sewage, decompose residual organic matters and then enter an A3 pool to perform enhanced denitrification; finally, removing organic matters is enhanced through a 03 pool, total phosphorus is fully absorbed by phosphorus accumulating bacteria, and a chemical phosphorus removal agent is added at the tail end of 03 to remove residual total phosphorus which is not removed by microorganisms; the mixed liquid enters the settling chamber through the central cylinder of the settling chamber.
The system adopts TS-A2O2Treating the sewage as a deformation process 1; wherein the inner cavity is an A1 pool, the outer cavity is an O1 pool, the left chamber of the second reaction chamber is an O1 pool, the right chamber of the second reaction chamber is an O1 pool, the left chamber of the third reaction chamber is an A2 pool, and the left chamber of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into O1 entering the first reaction chamber and O1 entering the second reaction chamber, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of the third reaction chamber, and nitrate nitrogen and nitrite nitrogen in the sewage perform denitrification by using residual organic matters in the sewage and water inlet organic matters in an A2 pool of the third reaction chamber; and then the sewage enters a third reaction chamber O2 pool to further nitrify ammonia nitrogen in the sewage, decompose residual organic matters, fully absorb total phosphorus by phosphorus accumulating bacteria, add a chemical phosphorus removal agent at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then the mixed muddy water enters a settling tank through a central cylinder of the settling tank.
The system adopts the method to adopt TS-A2O2Treating the sewage as a deformation process 2; wherein the inner cavity is an A1 pool, the outer cavity is an O1 pool, the left chamber of the second reaction chamber is an O1 pool, the right chamber of the second reaction chamber is an A2 pool, the left chamber of the third reaction chamber is an A2 pool, and the right chamber of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into an O1 pool of the first reaction chamber and an O1 pool of the second reaction chamber, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified to be converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of a second reaction chamber, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inflow organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; after the same step in the a2 cell of the third reaction chamber;
the sewage enters an O2 pool of a third reaction chamber, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then mixed mud water enters a settling tank through a central cylinder of the settling tank;
the system adopts TS-A2O2Treating the sewage as a deformation process 3; wherein the inner cavity is an A1 pool, the outer cavity is an O1 pool, the left chamber of the second reaction chamber is an A2 pool, the right chamber of the second reaction chamber is an A2 pool, the left chamber of the third reaction chamber is an A2 pool, and the right chamber of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into an O1 pool, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of the second reaction chamber and an A2 pool of the third reaction chamber, and nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inflow organic matters in an A2 pool to carry out denitrification;
and then the sewage enters an O2 pool of a third reaction chamber, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then mixed muddy water enters a settling tank through a central cylinder of the settling tank.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) the number of the process sections in the scheme can be adjusted according to the actual water quality or the change of the water quality, and the sewage treatment process A is adjusted2O2And A3O3Can be flexibly switched according to the water quality; in addition, the water inflow in the scheme is multi-stage water inflow and can be freely distributed, so that the full utilization of a carbon source in raw water can be realized; in the scheme, parameters of each process section can be adjusted according to the water quality condition of inlet water and the water outlet requirement.
(2) The circular reaction zone in this scheme is high 4.5m, guarantees the effective depth of water more than 4 meters, compares in traditional integration equipment and improves reaction efficiency more than 30% and the reaction zone adopts SS304 stainless steel cold-rolled sheet, long service life.
Drawings
FIG. 1 is a schematic view of the overall structure (main process) of the present invention;
FIG. 2 is a schematic diagram showing the overall arrangement of the embodiment 3 (modification process 1) of the present invention;
FIG. 3 is a schematic diagram showing the overall arrangement of the embodiment 4 (modification process 2) of the present invention;
FIG. 4 is a schematic diagram showing the overall arrangement of the embodiment 5 (modification process 3) of the present invention;
FIG. 5 shows TS-A in the present invention2O2A schematic flow diagram of the process;
FIG. 6 shows TS-A in the present invention3O3Schematic flow diagram of the process.
The labels in the figure are: 1. a first reaction tank; 2. a second reaction tank; 3. a third reaction tank; 4. a settling tank; 11. a first barrier structure; 12. an inner cavity; 13. an outer cavity; 21. a second barrier structure; 22. a left chamber; 23. a right chamber; 31. and a third barrier structure.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Example 1
As shown in fig. 1, a modular sewage treatment system includes a first reaction tank 1, a second reaction tank 2, a third reaction tank 3, and a settling tank 4; the first reaction tank 1, the second reaction tank 2 and the third reaction tank 3 are sequentially connected through a pipeline and are finally communicated with the precipitation tank 4; the first reaction tank 1, the second reaction tank 2 and the third reaction tank 3 are all provided with a blocking mechanism for carrying out region division;
a first barrier structure 11 is arranged in the first reaction tank 1, the first barrier structure 11 divides the first reaction tank 1 into an inner cavity 12 and an outer cavity 13, the inner cavity is communicated with a sewage inlet, and a first aeration system is arranged in the outer cavity; the volume ratio of the inner cavity 12 to the outer cavity is 1: 3;
water inlets are formed in the inner cavity of the first reaction chamber and the left cavity and/or the right cavity of the second reaction chamber;
when the sewage enters the inner cavity of the first reaction tank 1, anaerobic or facultative reaction is carried out, and anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into the external cavity, the aeration system in the external cavity fuses air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and meanwhile, ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen.
The second reaction tank 2 is provided with a second barrier structure 21, and the second reaction tank 2 is divided into two parts by the second barrier structure 21, wherein the volume ratio of the two parts is 2: 2, a left chamber 22 and a right chamber 23, wherein a second aeration system and a third aeration system are respectively and independently arranged in the left chamber 22 and the right chamber 23; and the second aeration system and/or the third aeration system are used for carrying out aeration operation on the chambers in which the aeration systems are respectively arranged independently or simultaneously.
The third reaction tank 3 is provided with a third blocking structure 31, and the third reaction tank 3 is divided into two parts by the third blocking structure 31, wherein the volume ratio of the two parts is 2: 2 left and right chambers 22, 23; a fourth aeration system is arranged in the right chamber 23, and the fourth aeration system is used for aerating the right chamber 23.
Finally, discharging the treated mixed solution into a settling tank for mud-water separation; a central cylinder is arranged in the settling tank, a reflecting plate is arranged in the central cylinder, mud water enters the central part of the settling tank 4 through the central cylinder of the settling tank 4, is uniformly dispersed out through the reflecting plate, and is subjected to mud-water separation under the action of gravity; the settling tank is also internally provided with an inclined pipe gallery and a water outlet weir; the suspended matters are difficult to separate and enter the inclined pipe gallery and are deposited at the inclined pipe gallery, and the supernatant enters the effluent weir. The deposited sludge is recycled through a sludge return system, and partial sludge is discharged through a bottom valve to maintain the balance of MLSS in the whole system.
The reflecting plate, the inclined pipe gallery and the water outlet weir in the settling tank are all designed conventionally, and the scheme is not improved initially and can be arranged at any position.
The volume ratio of the middle cavity related in the scheme can be set to other ratios as long as the middle cavity can be separated by the blocking structure.
Example 2
As shown in fig. 1, the scheme provides a treatment process (main process) of a modular sewage treatment system, and the specific steps are detailed later; in the prior art, a building structure or a tank body for sewage treatment is conservatively fixed, the sewage treatment capacity in the design is matched with the water quality randomly sampled before the design, if random sampling is wrong or the sampling time is inaccurate, only short-term sampling data is adopted, and a sewage treatment system designed based on the data is necessarily conservative and inaccurate;
in actual life, the pollution degree of water quality is dynamically changed, the water quality in different areas and different periods is different, the structure of the sewage treatment system designed in the prior art is already set at the beginning of design, the upper limit value of the treatment capacity is fixed, and the treatment capacity cannot be changed again.
The scheme provides A treatment process of A modular sewage treatment system, and based on the sewage treatment system in the embodiment 1, the method adopts A three-section anaerobic and aerobic debugging process (TS-A)3O3Process) treating sewage; wherein the inner cavity 12 is an A1 pool (anaerobic pool) and an outer cavity13 is an O1 pool (aerobic pool), the left chamber 22 of the second reaction tank is an A2 pool (anaerobic pool), the right chamber 23 of the second reaction tank is an O2 pool (aerobic pool), the left chamber 22 of the third reaction tank is an A3 pool (anaerobic pool), and the right chamber 22 of the third reaction tank is an O3 pool (aerobic pool);
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, an A2 pool and an A3 pool, the water inlet proportion can be adjusted by a valve, most of the sewage enters equipment through the A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into an O1 pool, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen; then the sewage enters an A2 pool, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and influent organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; then the sewage enters an O2 pool to further nitrify ammonia nitrogen in the sewage, decompose residual organic matters and then enter an A3 pool to perform enhanced denitrification; and finally, removing organic matters through a 03 pool, fully absorbing the total phosphorus by phosphorus accumulating bacteria, and adding a chemical phosphorus removal agent at the tail end of 03 to remove the residual total phosphorus which is not removed by microorganisms. The mixed liquid enters the settling chamber through the central cylinder of the settling chamber for settling. Mud and water enter the central part of the sedimentation tank 4 through the central cylinder of the sedimentation tank 4, are uniformly dispersed out through the reflecting plate, are subjected to mud and water separation under the action of gravity, are difficult to separate suspended matters and enter the inclined pipe gallery, are deposited at the inclined pipe gallery, and supernatant enters the effluent weir. The deposited sludge is recycled after being lifted by the sludge return system, and partial sludge is discharged through a bottom valve to maintain the balance of MLSS in the whole system.
Example 3
As shown in FIG. 2, the present embodiment provides A treatment process (modified process 1) of A modular sewage treatment system, which is based on the sewage treatment system of example 1, and adopts A two-stage anaerobic and aerobic conditioning process (TS-A)2O2Art)Treating the sewage; wherein the inner cavity 12 is an A1 pool (anaerobic pool), the outer cavity 13 is an O1 pool (aerobic pool), the left chamber 22 of the second reaction tank is an O1 pool (aerobic pool), the right chamber 23 of the second reaction tank is an O1 pool (aerobic pool), the left chamber 22 of the third reaction tank is an A2 pool (anaerobic pool), and the right chamber 22 of the third reaction tank is an O2 pool (aerobic pool);
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into an O1 pool of the first reaction tank and an O1 pool of the second reaction tank, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of a third reaction tank, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inlet water organic matters in an A2 pool of the third reaction tank to carry out denitrification to generate N2、CO2And water; then the sewage enters a third reaction tank O2 pool, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus not removed by microorganisms, then mixed mud water enters the central part of a settling tank 4 through a central cylinder of the settling tank 4, is uniformly dispersed out through a reflecting plate, mud water is separated under the action of gravity, suspended matters which are difficult to separate enter an inclined pipe gallery are deposited at the central part, and supernatant enters a water outlet weir; the deposited sludge is recycled after being lifted by the sludge return system, and partial sludge is discharged through a bottom valve to maintain the balance of MLSS in the whole system.
Example 4
As shown in FIG. 3, this embodiment provides a treatment process (modification process 2) of a modular sewage treatment system, which is based on the sewage treatment system of example 1, and the method employs two processesSegmental anaerobic and facultative debugging process (TS-A)2O2Process) treating sewage; wherein the inner cavity 12 is an A1 pool (anaerobic pool), the outer cavity 13 is an O1 pool (aerobic pool), the left chamber 22 of the second reaction tank is an O1 pool (aerobic pool), the right chamber 23 of the second reaction tank is an A2 pool (anaerobic pool), the left chamber 22 of the third reaction tank is an A2 pool (anaerobic pool), and the right chamber 22 of the third reaction tank is an O2 pool (aerobic pool);
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into an O1 pool of the first reaction tank and an O1 pool of the second reaction tank, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of a second reaction tank, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inflow organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; after the same procedure in pool a2 of the third reaction tank;
the sewage enters an O2 pool of a third reaction tank, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus not removed by microorganisms, then mixed mud water enters the central part of a settling tank 4 through a central cylinder of the settling tank 4, is uniformly dispersed out through a reflecting plate, mud water is separated under the action of gravity, suspended matters which are difficult to separate enter an inclined pipe gallery are deposited at the central part, and supernatant enters a water outlet weir; the deposited sludge is recycled after being lifted by the sludge return system, and partial sludge is discharged through a bottom valve to maintain the balance of MLSS in the whole system.
Example 5
As shown in fig. 4, the present inventionA treatment process (modification 3) of A modular sewage treatment system is provided, based on the sewage treatment system of example 1, the method adopts A two-stage anaerobic and aerobic conditioning process (TS-A)2O2Process) treating sewage; wherein the inner cavity 12 is an A1 pool (anaerobic pool), the outer cavity 13 is an O1 pool (aerobic pool), the left chamber 22 of the second reaction tank is an A2 pool (anaerobic pool), the right chamber 23 of the second reaction tank is an A2 pool (anaerobic pool), the left chamber 22 of the third reaction tank is an A2 pool (anaerobic pool), and the right chamber 22 of the third reaction tank is an O2 pool (aerobic pool);
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; the sewage automatically flows into an O1 pool, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of a second reaction tank and an A2 pool of a third reaction tank, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and influent organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water;
then the sewage enters an O2 pool of a third reaction tank, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus not removed by microorganisms, then mixed mud water enters the central part of a settling tank 4 through a central cylinder of the settling tank 4, is uniformly dispersed out through a reflecting plate, mud water is separated under the action of gravity, suspended matters which are difficult to separate enter an inclined pipe gallery are deposited at the central part, and supernatant enters a water outlet weir; the deposited sludge is recycled after being lifted by the sludge return system, and partial sludge is discharged through a bottom valve to maintain the balance of MLSS in the whole system.
The method in the embodiments 3-5 is used for adaptively adjusting different water pollution conditions based on the same structure, and under the condition that the structure is fixed and can not be changed, the method can be realized by changing A1: o1 and a 2: the adjustment of different pollution degrees is realized by the proportion of O2, and the pollution degree can be determined according to the water quality extracted on site and is used as the basis for selecting the method;
in the process of example 3, a1 finally obtained in the process: o1 and a 2: the ratio of O2 is: 1: 7 and 2: 2;
in the process of example 4, a1 finally obtained in the process: o1 and a 2: the ratio of O2 is: 1: 5 and 4: 2;
in the process of example 5, a1 finally obtained in the process: o1 and a 2: the ratio of O2 is: 1: 3 and 6: 2;
meanwhile, parameters of the process section can be adjusted according to the requirement of inflow water quality, so that a better adjusting effect is achieved.
The treatment process can be adjusted according to actual water quality or water quality change to adjust A2O2And A3O3The water inlet can be freely distributed, and the carbon source in the water can be maximally utilized; meanwhile, the parameters of the process section can be adjusted according to the requirement of the water quality of the inlet water to achieve a better adjusting effect.
The invention is based on TS-A3O3The circular modular sewage treatment equipment of the process carries out breakthrough innovation on the existing one-time shaping design process, improves the removal rate of total nitrogen in sewage treatment indexes, saves the sludge reflux of a nitrifying liquid in the common process, saves a large amount of energy consumption, realizes the adjustable water inlet proportion in multi-stage water inlet, utilizes the carbon source in source water as much as possible, can solve slight C/N ratio imbalance sewage, does not need extra carbon source addition, can save partial additional carbon source addition and can realize the actual operation cost saving on the whole.
The equipment is integrated, so that batch production can be realized, the manufacturing cost is further reduced, and the construction investment is saved; the integrated equipment is convenient to transport, can be quickly constructed, and is suitable for municipal sewage treatment engineering.
Circular reaction zone height in this scheme is 4.5m, guarantees the effective depth of water of 4 meters, compares and improves more than 30% reaction efficiency and reaction zone adoption SS304 stainless steel cold-rolled sheet, life in traditional integrated equipment.
FIG. 5 is TS-A2O2The flow chart of the process, FIG. 6 is TS-A3O3Flow chart of the process.
In the process, whether it is TS-A2O2Process or TS-A3O3The process does not need to adopt a mixed liquid reflux mode for treatment, and in this point, the scheme has high economic benefit and can effectively reduce the operation cost of sewage treatment.
And can adopt the mode that the mouth intake in this scheme, compare in fixed and single water inlet of prior art, improvement sewage treatment efficiency that can be very fast.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A modular sewage treatment system, its characterized in that: comprises a first reaction chamber, a second reaction chamber, a third reaction chamber and a precipitation chamber; the first reaction chamber, the second reaction chamber and the third reaction chamber are sequentially connected through a pipeline and are finally communicated with the precipitation chamber; and the first reaction chamber, the second reaction chamber and the third reaction chamber are all provided with a blocking mechanism for dividing the reaction chambers into areas.
2. The modular wastewater treatment system of claim 1, wherein: be provided with first separation structure in the first reaction chamber, first separation structure sets up in first reaction chamber, and first separation structure divides first reaction chamber into interior cavity and outer cavity, interior cavity communicates with the sewage water inlet, be provided with first aeration system in the outside cavity.
3. The modular wastewater treatment system of claim 2, wherein: the second reaction chamber is internally provided with a second blocking structure, the second reaction chamber is divided into a left chamber and a right chamber through the second blocking structure, and a second aeration system and a third aeration system are respectively and independently arranged in the left chamber and the right chamber; and the second aeration system and/or the third aeration system are used for carrying out aeration operation on the chambers in which the aeration systems are respectively arranged independently or simultaneously.
4. The modular wastewater treatment system of claim 3, wherein: a third barrier structure is arranged in the third reaction chamber, and the third reaction chamber is divided into a left chamber and a right chamber through the third barrier structure; and a fourth aeration system is arranged in the right chamber, and the right chamber is aerated through the fourth aeration system.
5. The modular wastewater treatment system of claim 3, wherein: and water inlets are formed in the inner cavity of the first reaction chamber and the left cavity and/or the right cavity of the second reaction chamber.
6. A treatment process of the modular sewage treatment system according to claims 1 to 5, characterized in that: the method adopts TS-A3O3The process treats the sewage; wherein the inner cavity of the first reaction chamber is an A1 pool, the outer cavity is an O1 pool, the left chamber of the second reaction chamber is an A2 pool, the right chamber of the second reaction chamber is an O2 pool, the left chamber of the third reaction chamber is an A3 pool, and the right chamber of the third reaction chamber is an O3 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, an A2 pool and an A3 pool, the water inlet proportion can be adjusted by a valve, most of the sewage enters equipment through the A1 pool, and in the A1 pool, anaerobic bacteria decompose organic substances in the sewage, so that the organic substances are subjected to hydrolytic acidification and ammoniation, the biodegradability of the sewage is improved, and an environment is provided for phosphorus release bacteria to fully release phosphorus; waste waterThen automatically flowing into an O1 pool, enabling an aeration system in the O1 pool to blend air into sewage, removing most organic matters in the water under the degradation action of aerobic microorganisms, and simultaneously nitrifying ammonia nitrogen in the water to convert the ammonia nitrogen into nitrate nitrogen and nitrite nitrogen; then the sewage enters an A2 pool, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and influent organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; then the sewage enters an O2 pool to further nitrify ammonia nitrogen in the sewage, decompose residual organic matters and then enter an A3 pool to perform enhanced denitrification; finally, removing organic matters is enhanced through a 03 pool, total phosphorus is fully absorbed by phosphorus accumulating bacteria, and a chemical phosphorus removal agent is added at the tail end of 03 to remove residual total phosphorus which is not removed by microorganisms; the mixed liquid enters the settling chamber through the central cylinder of the settling chamber for settling.
7. A treatment process of the modular sewage treatment system according to claims 1 to 5, characterized in that: the method adopts TS-A2O2The process treats the sewage; the inner cavity of the first reaction chamber is an A1 pool, the outer cavity of the first reaction chamber is an O1 pool, the left cavity of the second reaction chamber is an O1 pool, the right cavity of the second reaction chamber is an O1 pool, the left cavity of the third reaction chamber is an A2 pool, and the left cavity of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into an O1 pool of the first reaction chamber and an O1 pool of the second reaction chamber, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of the third reaction chamber, and nitrate nitrogen and nitrite nitrogen in the sewage perform denitrification by using residual organic matters in the sewage and water inlet organic matters in an A2 pool of the third reaction chamber; and then the sewage enters a third reaction chamber O2 pool to further nitrify ammonia nitrogen in the sewage, decompose residual organic matters, fully absorb total phosphorus by phosphorus accumulating bacteria, add a chemical phosphorus removal agent at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then the mixed muddy water enters a settling chamber through a central cylinder of the settling chamber.
8. A treatment process of the modular sewage treatment system according to claims 1 to 5, characterized in that: the method adopts the TS-A2O2The process treats the sewage; the inner cavity of the first reaction chamber is an A1 pool, the outer cavity of the first reaction chamber is an O1 pool, the left cavity of the second reaction chamber is an O1 pool, the right cavity of the second reaction chamber is an A2 pool, the left cavity of the third reaction chamber is an A2 pool, and the right cavity of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into an O1 pool of the first reaction chamber and an O1 pool of the second reaction chamber, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of a second reaction chamber, nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inflow organic matters in an A2 pool to carry out denitrification to generate N2、CO2And water; after the same step in the a2 cell of the third reaction chamber;
and the sewage enters an O2 pool of a third reaction chamber, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then mixed muddy water enters a settling chamber through a central cylinder of the settling chamber.
9. A treatment process of the modular sewage treatment system according to claims 1 to 5, characterized in that: the method adoptsTS－A2O2The process treats the sewage; the inner cavity of the first reaction chamber is an A1 pool, the outer cavity of the first reaction chamber is an O1 pool, the left cavity of the second reaction chamber is an A2 pool, the right cavity of the second reaction chamber is an A2 pool, the left cavity of the third reaction chamber is an A2 pool, and the right cavity of the third reaction chamber is an O2 pool;
sewage is lifted by a water inlet pipe of a water pump and respectively enters an A1 pool, the proportion of the A2 pool to the water inlet can be adjusted by a valve, most of the sewage enters equipment through an A1 pool, and anaerobic bacteria decompose organic substances in the sewage in an A1 pool; the sewage automatically flows into an O1 pool, an aeration system in an O1 pool melts air into the sewage, most organic matters in the sewage are removed under the degradation action of aerobic microorganisms, and ammonia nitrogen in the sewage is nitrified and converted into nitrate nitrogen and nitrite nitrogen;
then the sewage enters an A2 pool of the second reaction chamber and an A2 pool of the third reaction chamber, and nitrate nitrogen and nitrite nitrogen in the sewage utilize residual organic matters in the sewage and inflow organic matters in an A2 pool to carry out denitrification;
and then the sewage enters an O2 pool of a third reaction chamber, ammonia nitrogen in the sewage is further nitrified, residual organic matters are decomposed, total phosphorus is fully absorbed by phosphorus accumulating bacteria, a chemical phosphorus removal agent is added at the 02 tail end to remove residual total phosphorus which is not removed by microorganisms, and then mixed muddy water enters a settling chamber through a central cylinder of the settling chamber.
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| CN113354152A (en) * | 2021-06-30 | 2021-09-07 | 孙武 | Printing and dyeing textile matching sewage decoloration high-efficiency treatment machine |
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