CN106242054B - Sewage treatment system and sewage treatment method with switching type intermittent aeration - Google Patents
Sewage treatment system and sewage treatment method with switching type intermittent aeration Download PDFInfo
- Publication number
- CN106242054B CN106242054B CN201610763555.0A CN201610763555A CN106242054B CN 106242054 B CN106242054 B CN 106242054B CN 201610763555 A CN201610763555 A CN 201610763555A CN 106242054 B CN106242054 B CN 106242054B
- Authority
- CN
- China
- Prior art keywords
- reaction
- aeration
- sedimentation tank
- tank
- sewage treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a sewage treatment system and a treatment method of switching intermittent aeration, wherein the sewage treatment system comprises: the tank body comprises a reaction tank, a sedimentation tank and a baffle plate, a reaction cavity is formed between the sedimentation tank and the reaction tank, and the baffle plate divides the reaction cavity into two reaction areas; a decanter provided in the reaction zone; a water inlet pipe communicated with the sedimentation tank; the aeration device comprises an aeration fan, a three-way valve and an aeration pipe; the treatment method is that sewage is introduced into a sedimentation tank and overflows into a reaction tank, the two reaction areas are alternately aerated to alternately perform short-cut nitrification in the two reaction areas, and the water is discharged after standing. According to the invention, on one hand, the sedimentation tank is arranged in the reaction tank, and two reaction areas are formed by separating the sedimentation tank by the partition board, so that the sewage is subjected to anaerobic treatment and aerobic treatment in turn, the sewage treatment efficiency is improved, and on the other hand, the three-way valve is controlled to alternately aerate the two reaction areas, so that the two reaction areas are subjected to short-range nitration reaction alternately, the reaction efficiency is improved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to a sewage treatment technology, in particular to a sewage treatment system and a sewage treatment method for switching intermittent aeration.
Background
The conventional sequencing batch activated sludge process includes a SBR (Sequence Batch Reactor) process and a SBR process, which are modified to form a periodic activated sludge process CASS (Cyclical Actived Sludge System).
SBR is short for sequencing batch activated sludge process, and is an activated sludge sewage treatment technology operated in an intermittent aeration mode. The method is mainly characterized by orderly and intermittent operation in operation, the core of the SBR technology is an SBR reaction tank, and the tank integrates functions of homogenization, primary sedimentation, biodegradation, secondary sedimentation and the like into one tank, and has no sludge reflux system. Is especially suitable for occasions with large intermittent discharge and flow change. At present, the method has wide application in China. Decanter is a key device in this process. In operation, the SBR process consists of five basic processes of water intake, aeration, precipitation, drainage and standby in time sequence in the same reaction tank (vessel).
CASS (Cyclic Activated Sludge System) is a short term of a periodic cycle activated sludge process, also called a circulating activated sludge process CAST (Cyclic Activated Sludge technology), and is developed on the basis of SBR, namely a biological selector is added at the water inlet end in the SBR tank, so that continuous water inlet (continuous water inlet in a precipitation period and a drainage period) and intermittent water drainage are realized. The main purpose of the bioselector is to allow the system to select for flocculating bacteria, the volume of which is about 10% of the total tank. The process of the bioselector follows the matrix accumulation-regeneration theory of activated sludge, subjecting the activated sludge to a high load adsorption phase (matrix accumulation) in the selector, followed by a lower load matrix degradation phase in the main reaction zone, to complete the overall matrix degradation process and sludge regeneration.
The basic structure of CASS is: on the basis of a sequencing batch activated sludge process (SBR), a reaction tank is designed into two parts along the length direction of the tank, the front part is a biological selection area and is also called a pre-reaction area, the rear part is a main reaction area, and an automatic water skimming device capable of ascending and descending is arranged at the rear part of the main reaction area. The aeration, precipitation, drainage and other processes of the whole process circularly run in the same tank, so that a secondary sedimentation tank and a sludge reflux system of a conventional activated sludge method are omitted; meanwhile, water can be continuously fed and discharged intermittently.
CASS principle: in the pre-reaction zone, the microorganisms can rapidly adsorb most soluble organic matters in sewage through an enzyme rapid transfer mechanism, and undergo a high-load matrix rapid accumulation process, so that the buffer effect on the quality of inflow water, the water quantity, the PH and toxic and harmful substances is better, meanwhile, the inhibition effect on the growth of filamentous bacteria is realized, and the sludge expansion can be effectively prevented; and then undergoes a matrix degradation process at a lower load in the main reaction zone. The CASS technology integrates the functions of reaction, precipitation, drainage and the like, the degradation of pollutants is a plug flow process in time, and microorganisms are in periodic variation of aerobiotic, anoxic and anaerobic conditions, so that the effect of removing the pollutants is achieved, and meanwhile, the CASS technology also has better denitrification and dephosphorization functions.
Along with the continuous progress of sewage treatment technology, further improvement on the basis of a sequencing batch activated sludge process and a periodic cycle activated sludge process also appears, but the improved process has the defects of large aeration energy consumption, poor effect and large occupied area.
Disclosure of Invention
The invention aims to overcome the technical defects, and provides a sewage treatment system and a sewage treatment method with switching intermittent aeration, which solve the technical problems of large aeration energy consumption, poor effect and large occupied area in the sewage treatment process in the prior art.
In order to achieve the technical aim, the technical proposal of the invention provides a sewage treatment system with switching intermittent aeration, which comprises,
the device comprises a tank body, a reaction tank, a sedimentation tank and a baffle plate, wherein the sedimentation tank is internally arranged in the reaction tank and forms an annular reaction cavity with the reaction tank, and the baffle plate is internally arranged in the reaction cavity and divides the reaction cavity into two reaction areas;
two decanters respectively arranged in the two reaction areas;
a water inlet pipe communicated with the sedimentation tank;
the aeration device comprises an aeration fan, a three-way valve connected with the air outlet end of the aeration fan, and two aeration pipes respectively communicated with the two air outlet ends of the three-way valve, wherein the two aeration pipes are respectively arranged at the bottoms of the two reaction areas.
Preferably, the aeration device further comprises a controller for controlling the three-way valve to alternately communicate the two aeration pipes.
Preferably, the aeration pipe comprises an aeration main pipe which is arranged along the length direction of the reaction area and is communicated with the three-way valve, and a plurality of aeration branch pipes which are communicated with the aeration main pipe, wherein the aeration branch pipes are uniformly arranged along the length direction of the aeration main pipe, and each aeration branch pipe is perpendicular to the aeration main pipe.
Preferably, the sewage treatment system further comprises two reflux pumps which are arranged in the sedimentation tank, and the water inlet ends of the two reflux pumps are respectively communicated with the two reaction areas.
Preferably, the reflux pump and the decanter are respectively arranged near two ends of the reaction zone.
Preferably, the decanter comprises,
the lower ends of the two guide rods are fixed at the bottom of the reaction zone;
the two ends of the carrier separating cylinder are respectively connected with the two guide rods in a sliding way and can slide up and down relative to the guide rods, and a plurality of separating holes are formed in the carrier separating cylinder;
a water outlet hose connected with the water outlet end of the carrier separation cylinder, wherein the water outlet end of the water outlet hose penetrates through the side wall of the reaction tank and is connected with a control valve; a kind of electronic device with high-pressure air-conditioning system
The pontoons are arranged above the carrier separating barrels in parallel, and are connected with the carrier separating barrels through connecting pieces.
Preferably, the decanter further comprises an upper limit rod and a lower limit rod which are arranged up and down, two ends of the upper limit rod and two ends of the lower limit rod are respectively connected with the two guide rods, and the carrier separating cylinder is arranged between the upper limit rod and the lower limit rod.
Preferably, the decanter comprises a short connecting pipe and a limiting pipe, wherein one end of the short connecting pipe is in sliding connection with one guide rod, the other end of the short connecting pipe is connected with the carrier separating cylinder, and the limiting pipe and the heavy pipe are connected into an annular pipe sleeved outside the other guide rod.
Meanwhile, the invention also provides a sewage treatment method of the sewage treatment system, which comprises the following steps,
(1) Introducing sewage into the sedimentation tank through a water inlet pipe, and allowing the sewage to enter from the bottom of the sedimentation tank and sediment in the sedimentation tank;
(2) The sewage overflows into the two reaction areas from the sedimentation tank, then is aerated by an aeration device, and is alternately communicated with the two aeration pipes by a three-way valve and alternately aerates the two reaction areas respectively, so that short-cut nitration reaction is alternately carried out in the two reaction areas;
(3) After the biochemical reaction in the reaction zone is completed, the reaction zone is kept still and water is discharged through a decanter.
Preferably, the step (2) further comprises refluxing the sewage in the reaction zone to the bottom of the sedimentation tank.
Compared with the prior art, the invention has the advantages that on one hand, the sedimentation tank is arranged in the reaction tank, and two reaction areas are formed by separating the sedimentation tank by the partition board, which is beneficial to the sewage to be treated in sequence by anaerobic and aerobic processes, so that the sewage treatment efficiency is improved, and on the other hand, the three-way valve is controlled to alternately aerate the two reaction areas, which is beneficial to the two reaction areas to alternately perform short-range nitration reaction, so that the reaction efficiency is improved, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of a connection structure of a sewage treatment system for switching intermittent aeration according to the present invention;
fig. 2 is a schematic view of a connection structure of the decanter of the present invention;
fig. 3 is an enlarged view of the portion a of fig. 2 according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a sewage treatment system of switching type intermittent aeration, comprising,
the device comprises a tank body 1, a reaction tank 11, a sedimentation tank 12 and a baffle plate 13, wherein the sedimentation tank 12 is arranged in the reaction tank 11 and forms an annular reaction cavity with the reaction tank 11, and the baffle plate 13 is arranged in the reaction cavity and divides the reaction cavity into two reaction areas;
two decanters 2 respectively arranged in the two reaction areas;
a water inlet pipe 3 communicated with the sedimentation tank 12;
the aeration device 4 comprises an aeration fan 41, a three-way valve 42 connected with the air outlet end of the aeration fan 41, and two aeration pipes 43 respectively communicated with the two air outlet ends of the three-way valve 42, wherein the two aeration pipes 43 are respectively arranged at the bottoms of the two reaction areas.
The sewage treatment system of this embodiment can adopt the activated sludge process to handle sewage, specifically sewage at first gets into sedimentation tank 12 through inlet tube 3 in, because the play water end of inlet tube 3 can set up in sedimentation tank 12 bottom to form bottom water inflow, it can make in the sedimentation tank 12 form anaerobic environment, promotes to take place anaerobic reaction in the sedimentation tank 12, and then reduces ammonia nitrogen content in the sewage. After the sewage in the sedimentation tank 12 reaches a certain amount, specifically when the height of the sedimentation tank 12 is exceeded, the sewage overflows into two reaction areas, the two reaction areas are alternately aerated through the aeration device 4 in the overflow process to promote the culture of activated sludge, so that organic matters in the sewage are oxidized and decomposed, and the upper-layer clarified water treated by the reaction areas can be discharged through the decanter 2. Wherein, an overflow area or pipe can be arranged on the sedimentation tank 12 so as to facilitate the sewage of the sedimentation tank 12 to overflow into the reaction area.
The nitrification reaction in the reaction zone is divided into ammonia nitrogen oxidation and nitrous acid ammonia oxidation, and the short-range oxidation and the whole-range oxidation are divided according to different degrees of the ammonia nitrogen oxidation, so that the sewage after the short-range nitrification reaction has the advantages of less sludge, less ammonia nitrogen content, capability saving and the like, and is more attractive, the two reaction zones are alternately aerated through the aeration device 4, the oxygen containing concentration of the sewage in each reaction zone is controlled by controlling the time of alternately aerating each reaction zone, and further the short-range nitrification reaction is promoted in the two reaction zones, so that the ammonia nitrogen content in the sewage after the reaction is ensured to be less, the sludge content generated by the reaction is reduced, and the subsequent sludge treatment cost is also reduced.
The aeration device 4 in this embodiment alternately aerates the two reaction regions, so that continuous aeration of the aeration device 4 is ensured, and energy waste caused by intermittent aeration is avoided. In order to facilitate the observation and control of the reaction in the reaction zone, an observation stand 6 may be provided at the top of the reaction zone.
In the aeration process, a controller 44 is provided to control the three-way valve 42 so that the water outlet end of the three-way valve 42 is alternately communicated with the two aeration pipes 43, the controller 44 can be provided with a man-machine interaction module so as to set the aeration time in each reaction zone, and the manner of controlling the three-way valve 42 by the controller is conventional in the art, so that detailed description thereof will not be repeated.
Wherein, the aeration pipe 43 comprises an aeration main pipe 431 arranged along the length direction of the reaction zone and communicated with the three-way valve 42, and a plurality of aeration branch pipes 432 all communicated with the aeration main pipe 431, the aeration branch pipes 432 are uniformly arranged along the length direction of the aeration main pipe 431, and each aeration branch pipe 432 is vertically arranged with the aeration main pipe 431, in this embodiment, the reaction zone is uniformly aerated through the aeration branch pipes 432. When specifically setting up, can all set up reaction tank 11 and sedimentation tank 12 into circularly, and with reaction tank 11 and sedimentation tank 12 coaxial setting, two reaction areas all set up to semicircle annular, and two aeration main pipes 431 are the arc with sedimentation tank 12 coaxial setting, and a plurality of aeration are in charge of 432 then along sedimentation tank 12 circumference evenly arrange, and every aeration is in charge of 432 homogeneous phase sedimentation tank 12 radial setting.
In order to increase the ammonia nitrogen removal efficiency, the sewage treatment system of this embodiment further includes two reflux pumps 5 which are built in the sedimentation tank 12, the water inlet ends of the two reflux pumps 5 are respectively communicated with the two reaction areas, specifically, oxidation reaction is performed in the two reaction areas, and sewage in the two reaction areas is pumped into the sedimentation tank 12 by the reflux pumps 5 to perform denitrification reaction, so that the ammonia nitrogen content in the sewage is further eliminated, and the sewage treatment efficiency is improved. Among them, the reflux pump 5 is preferably provided at the bottom of the settling tank to promote the denitrification reaction efficiency.
In a specific arrangement, the reflux pump 5 and the decanter 2 are respectively arranged close to two ends of the reaction zone, so that turbidity of water discharged from the decanter 2 is avoided.
As shown in fig. 2 and 3, in order to increase the decanting effect, the decanter 2 of the present embodiment includes: the lower ends of the two guide rods 201 are fixed at the bottom of the reaction zone; the carrier separation tube 202, two ends of the carrier separation tube 202 are respectively connected with the two guide rods 201 in a sliding way and can slide up and down relative to the guide rods 201, and a plurality of separation holes 202a are formed in the carrier separation tube 202; a water outlet hose 203 connected to the water outlet end of the carrier separation tube 202, wherein the water outlet end of the water outlet hose 203 passes through the side wall of the reaction tank 11 and is connected to a control valve 204; and a pontoon 205 disposed in parallel above the carrier separation cylinder 202, the pontoon 205 being connected to the carrier separation cylinder 202 by a connection member 206.
The decanter 2 of the embodiment realizes that the water level in the reaction zone floats up and down along with the water level in the reaction zone, ensures that the water discharged by the water discharging hose 203 is the supernatant water at the uppermost layer, and can separate the biological filler in the reaction zone through the carrier separation cylinder 202 to reduce the loss of the biological filler.
The decanter 2 further comprises an upper limit rod 207 and a lower limit rod 208 which are arranged up and down, two ends of the upper limit rod 207 and two ends of the lower limit rod 208 are respectively connected with the two guide rods 201, the carrier separation barrel 202 is arranged between the upper limit rod 207 and the lower limit rod 208, and the movement range of the carrier separation barrel 202 can be limited through the upper limit rod 207 and the lower limit rod 208, so that the carrier separation barrel 202 is prevented from being separated from the guide rods 201 when the water level in the reaction zone is too high, and the carrier separation barrel 202 is prevented from falling into sludge at the bottom of the reaction zone, so that separation holes 221 are blocked.
In order to facilitate the up-and-down movement of the carrier separation tube 202 along with the guide rods 201, the decanter 2 of this embodiment includes a short connecting tube 209 and a limiting tube 210, one end of the short connecting tube 209 is slidably connected with one of the guide rods 201, the other end is connected with the carrier separation tube 202, the limiting tube 210 is connected with the heavy tube to form an annular tube sleeved on the other guide rod 201, the limiting tube 210 slides relative to one guide rod mainly through the short connecting tube 209, and is sleeved on the other guide rod in a matched manner with the counterweight tube, so that the limiting tube 210 can cooperate with the upper limiting rod 207 and the lower limiting rod 208 to limit the carrier separation tube 202, and the blocking of the carrier separation tube 202 in the up-and-down movement process can be effectively avoided.
In practical application, in order to ensure that the pontoon 205 and the carrier separation tube 202 are located at the up-down position and avoid shaking during the up-down movement of the pontoon 205 and the carrier separation tube 202, the decanter 2 of the embodiment further comprises a heavy tube 211 integrally connected with the carrier separation tube 202, which is mainly used for increasing the weight of the carrier separation tube 202, so as to avoid the reduction of the service life of the equipment caused by shaking of the pontoon 205.
In order to increase the water outlet efficiency of the separation holes 221, each of the separation holes 202a of the present embodiment is an arc-shaped hole arranged along the circumferential direction of the carrier separation cylinder 202, and a plurality of the separation holes 202a are uniformly arranged along the axial direction of the carrier separation cylinder 202.
The sewage treatment flow of the sewage treatment system of this embodiment is as follows: firstly, sewage is input into a sedimentation tank through a water inlet pipe, the sewage can be subjected to primary treatment in the sedimentation tank, the sewage enters an anaerobic environment which is easy to form from the bottom of the sedimentation tank, anaerobic reaction in the sedimentation tank is promoted, when the water level in the sedimentation tank exceeds the height of the sewage, the sewage can overflow into two reaction areas, then the two reaction areas are alternately aerated through an aerating device, so that the two reaction areas alternately perform short-range nitrification reaction, the dissolved oxygen in the two reaction areas is controlled by controlling the aeration time in the two reaction areas so as to promote the short-range nitrification reaction in the two reaction areas, further, the reaction efficiency is promoted, the ammonia nitrogen content is reduced, the sludge production amount is reduced, and meanwhile, ammonia nitrogen formed by the nitrification reaction in the two reaction areas can be returned to the bottom of the sedimentation tank through a return pump, so that denitrification reaction in the sedimentation tank is promoted to reduce the ammonia nitrogen content; after the reaction is completed, the two reaction areas can be kept stand for a certain time, and then are drained through a decanter.
Compared with the prior art, the invention has the advantages that on one hand, the sedimentation tank is arranged in the reaction tank, and two reaction areas are formed by separating the sedimentation tank by the partition board, which is beneficial to the sewage to be treated in sequence by anaerobic and aerobic processes, so that the sewage treatment efficiency is improved, and on the other hand, the three-way valve is controlled to alternately aerate the two reaction areas, which is beneficial to the two reaction areas to alternately perform short-range nitration reaction, so that the reaction efficiency is improved, and the energy consumption is reduced.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (7)
1. A sewage treatment system with switching intermittent aeration is characterized by comprising,
the device comprises a tank body, a reaction tank, a sedimentation tank and a baffle plate, wherein the sedimentation tank is internally arranged in the reaction tank and forms an annular reaction cavity with the reaction tank, and the baffle plate is internally arranged in the reaction cavity and divides the reaction cavity into two reaction areas;
two decanters respectively arranged in the two reaction areas;
a water inlet pipe communicated with the sedimentation tank;
the aeration device comprises an aeration fan, a three-way valve connected with the air outlet end of the aeration fan, and two aeration pipes respectively communicated with the two air outlet ends of the three-way valve, wherein the two aeration pipes are respectively arranged at the bottoms of the two reaction areas; the aeration device also comprises a controller for controlling the three-way valve to alternately communicate the two aeration pipes; the aeration device is used for alternately aerating the two reaction areas so as to promote the two reaction areas to alternately perform short-cut nitrification reaction;
the sewage treatment system also comprises two reflux pumps which are arranged in the sedimentation tank, and the water inlet ends of the two reflux pumps are respectively communicated with the two reaction areas.
2. The system according to claim 1, wherein the aeration pipe comprises an aeration main pipe which is provided along the length direction of the reaction zone and is communicated with the three-way valve, and a plurality of aeration sub-pipes which are all communicated with the aeration main pipe, the plurality of aeration sub-pipes are uniformly arranged along the length direction of the aeration main pipe, and each aeration sub-pipe is vertically provided with the aeration main pipe.
3. The switching type intermittent aeration sewage treatment system according to claim 1, wherein the reflux pump and the decanter are respectively disposed near both ends of the reaction zone.
4. The sewage treatment system of claim 3, wherein the decanter comprises,
the lower ends of the two guide rods are fixed at the bottom of the reaction zone;
the two ends of the carrier separating cylinder are respectively connected with the two guide rods in a sliding way and can slide up and down relative to the guide rods, and a plurality of separating holes are formed in the carrier separating cylinder;
a water outlet hose connected with the water outlet end of the carrier separation cylinder, wherein the water outlet end of the water outlet hose penetrates through the side wall of the reaction tank and is connected with a control valve; a kind of electronic device with high-pressure air-conditioning system
The pontoons are arranged above the carrier separating barrels in parallel, and are connected with the carrier separating barrels through connecting pieces.
5. The sewage treatment system of switching type intermittent aeration according to claim 4, wherein the decanter further comprises an upper limit rod and a lower limit rod which are arranged up and down, two ends of the upper limit rod and the lower limit rod are respectively connected with the two guide rods, and the carrier separating cylinder is arranged between the upper limit rod and the lower limit rod.
6. The system according to claim 5, wherein the decanter comprises a junction pipe, a heavy pipe, and a limiting pipe, one end of the junction pipe is slidably connected to one of the guide rods, the other end is connected to the carrier separation cylinder, and the limiting pipe is connected to the heavy pipe to form an annular pipe which is sleeved on the other guide rod.
7. A sewage treatment method of a sewage treatment system according to any one of claims 1 to 6, comprising the steps of,
(1) Introducing sewage into the sedimentation tank through a water inlet pipe, and allowing the sewage to enter from the bottom of the sedimentation tank and sediment in the sedimentation tank;
(2) The sewage overflows into the two reaction areas from the sedimentation tank, then is aerated by an aeration device, and is alternately communicated with the two aeration pipes by a three-way valve and alternately aerates the two reaction areas respectively, so that short-cut nitration reaction is alternately carried out in the two reaction areas;
(3) After the biochemical reaction in the reaction zone is completed, standing and discharging water through a decanter;
and (2) refluxing the sewage in the reaction zone to the bottom of the sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763555.0A CN106242054B (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system and sewage treatment method with switching type intermittent aeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763555.0A CN106242054B (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system and sewage treatment method with switching type intermittent aeration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106242054A CN106242054A (en) | 2016-12-21 |
| CN106242054B true CN106242054B (en) | 2023-07-04 |
Family
ID=57596818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610763555.0A Active CN106242054B (en) | 2016-08-29 | 2016-08-29 | Sewage treatment system and sewage treatment method with switching type intermittent aeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106242054B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523757Y (en) * | 2001-08-10 | 2002-12-04 | 澄海市科立环保实业有限公司 | Water depositing apparatus |
| CN103253770A (en) * | 2013-06-08 | 2013-08-21 | 大连生源水处理设备发展有限公司 | Integrated biological reactor for treatment of industrial wastewater and domestic sewage |
| CN104016483A (en) * | 2014-06-17 | 2014-09-03 | 戚伟康 | Single-tank alternative inflow and aeration sewage nitrogen and phosphorus removal system and method |
| CN104129853A (en) * | 2014-07-04 | 2014-11-05 | 广州市市政工程设计研究院 | Starting method for rapid and efficient short-cut nitrification |
| CN104724889A (en) * | 2015-03-24 | 2015-06-24 | 山东大学 | Sewage treatment system and sewage treatment method for reducing greenhouse gas emission |
| CN104961233A (en) * | 2015-06-18 | 2015-10-07 | 北京工业大学 | Device and method for adjusting coupling intermittent aeration to start shortcut nitrification of urban sewage by using dissolved oxygen |
| CN206188488U (en) * | 2016-08-29 | 2017-05-24 | 武汉东川自来水科技开发有限公司 | Switching formula intermittent aeration's sewage treatment system |
-
2016
- 2016-08-29 CN CN201610763555.0A patent/CN106242054B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523757Y (en) * | 2001-08-10 | 2002-12-04 | 澄海市科立环保实业有限公司 | Water depositing apparatus |
| CN103253770A (en) * | 2013-06-08 | 2013-08-21 | 大连生源水处理设备发展有限公司 | Integrated biological reactor for treatment of industrial wastewater and domestic sewage |
| CN104016483A (en) * | 2014-06-17 | 2014-09-03 | 戚伟康 | Single-tank alternative inflow and aeration sewage nitrogen and phosphorus removal system and method |
| CN104129853A (en) * | 2014-07-04 | 2014-11-05 | 广州市市政工程设计研究院 | Starting method for rapid and efficient short-cut nitrification |
| CN104724889A (en) * | 2015-03-24 | 2015-06-24 | 山东大学 | Sewage treatment system and sewage treatment method for reducing greenhouse gas emission |
| CN104961233A (en) * | 2015-06-18 | 2015-10-07 | 北京工业大学 | Device and method for adjusting coupling intermittent aeration to start shortcut nitrification of urban sewage by using dissolved oxygen |
| CN206188488U (en) * | 2016-08-29 | 2017-05-24 | 武汉东川自来水科技开发有限公司 | Switching formula intermittent aeration's sewage treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106242054A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105668787A (en) | Combined type multi-stage biological aerated filter and wastewater treatment process based on same | |
| JP2002505191A (en) | Surge anoxic mixed continuous batch reaction system | |
| CN106746175A (en) | A kind of kitchen garbage, waste-water processing method | |
| CN105217786B (en) | Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals | |
| CN105601030B (en) | A kind of sewage-treatment plant and technique of the operation of cycle sequence batch | |
| CN102838205A (en) | External continuous flow aerobic granular sludge membrane bioreactor | |
| CN102358663A (en) | Low-DO (dissolved oxygen) rear denitrification sewage treatment plant and technique | |
| CN102653436B (en) | Sewage reuse treatment system and process | |
| CN209098459U (en) | A kind of high gravity fermentation class antibiotic waste water processing system | |
| CN105016578B (en) | Aged percolation liquid treating system and method in a kind of refuse landfill | |
| KR20110089118A (en) | Anoxic/anaerobic bioreactor embedded ciliary ball media | |
| CN106830582A (en) | A kind of processing method of low biochemical cities and towns industrial park sewage | |
| CN106242054B (en) | Sewage treatment system and sewage treatment method with switching type intermittent aeration | |
| CN108128895B (en) | Biological denitrification integrated process | |
| CN109775936A (en) | A kind of low energy consumption domestic sewage processing system | |
| US20230121223A1 (en) | A Novel Single Hybrid Airlift Bioreactor for Wastewater Treatment | |
| CN212025099U (en) | Integrated sewage biochemical treatment device | |
| CN1321919C (en) | Technological process and apparatus of serial gas stripping inner circulation reactor | |
| CN209507895U (en) | A kind of biochemical sewage processing pond | |
| CN110104776B (en) | Small-size sewage treatment integration equipment | |
| CN208454613U (en) | A kind of activated sludge integrated sewage treating apparatus | |
| CN204022557U (en) | A kind of anaerobic-aerobic integral type sewage treatment unit | |
| CN1283564C (en) | Alternation internal circulation aerobe reactor | |
| CN102010061B (en) | Nitrification and denitrification sewage treatment device and system | |
| CN108394996B (en) | Activated sludge integrated sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211011 Address after: 430000 room 1, floor 11, No. 181, Jianghan Second Road, Jiang'an District, Wuhan City, Hubei Province Applicant after: Wuhan Huizhong Dachuan automatic control equipment Co.,Ltd. Address before: 430000 room 209, building 1, Qiaokou science and technology incubator, No. 17, Gutian fifth road, Qiaokou District, Wuhan City, Hubei Province Applicant before: WUHAN DONGCHUAN WATER ENVIRONMENT TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |