• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention provides a double-tank type oxidation ditch integrated system capable of operating alternatively and continuously. The system includes two tank bodies; a water inlet pipe and a water outlet pipe for independently controlling start and stop disposed on the tank bodies; the tank bodies are in a form of an oxidation ditch, and serially connected forming a treatment unit; an aeration apparatus is disposed in the oxidation ditches; the tank bodies respectively and alternatively serve as aeration biochemical regions and sedimentation regions by opening-closing actions of the water inlet and water outlet pipe, such operation is repeated for continuous sewage treatment. An oxidation ditch circulation is implemented, and Anoxic-Oxic treatment is implemented combined with a double-tank double-cycle operation, whereby poor treatment due to unstable flow and large impact strength of sewage is addressed; facilities such as regulating, primary and secondary sedimentation tank are unnecessary, greatly reducing costs.
    公开号:NL2025274A
    申请号:NL2025274
    申请日:2020-04-03
    公开日:2020-12-03
    发明作者:Ling Jianjun；Zhang Dong
    申请人:Lingzhi Environmental Prot Co Ltd；Jiangsu Lingzhi Environmental Prot Co Ltd；Jiangsu Lingzhi Environmental Prot Equipment Co Ltd；Lingzhi Environmental Prot Linquan Co Ltd；
    IPC主号:
    专利说明:

    Double-tank type oxidation ditch integrated system capable of operating alternatively and continuously Technical Field The present invention relates to the field of sewage treatment, and in particular to the field of upgrade and reconstruction of rural domestic sewage, urban domestic sewage and industrial sewage. The present invention may also be applied to emergency treatment of a riverway, and emergency treatment, upgrade and reconstruction of a pump station.
    Background A main treatment difficulty of rural domestic sewage lies in an unstable flow in a whole day. Generally, the sewage is focused in morning, afternoon and evening. For less than 4 h, sewage discharge accounts for 50%-80% of total water discharge. In this sense, an impact resistance of a device is highly demanding, and a regulating tank and a pump station need to be provided, so that a civil construction cost and a device cost are high. Next, rainwater and sewage in a rural area are not diverted, and a primary sedimentation tank with a large floor area often needs to be provided. Moreover, nitrogen and phosphorus removal is required in a rural sewage treatment process. If a Membrane Bioreactor (MBR) process is used, both nitrogen and phosphorus may be well removed, but a membrane flux is generally low, and a membrane is polluted easily. As the polluted membrane is not cleaned and replaced easily, a maintenance cost is large. Furthermore, there are many sewage treatment projects in the rural area, and the projects are dispersed in villages and towns. In order to reduce a floor area, most sewage treatment apparatuses are buried under the ground, causing difficult maintenance of the device. An oxidation ditch technique and an Anoxic-Oxic (A-O) process applied to the sewage treatment are often operated independently, and can treat the sewage stably and effectively to reach a standard under an appropriate working condition. However, for a complex condition where a sewage flow is unstable, the rainwater and the sewage are not diverted and the like in the rural area, a single process cannot guarantee effluent to reach to the standard; and if the process is combined with each 1 other for use, a regulating tank, a primary sedimentation tank, a secondary sedimentation tank, a reflow apparatus and the like need to be provided one by one. Hence, with a conventional design concept, the process flow is long, more devices are required, and the treatment effect also cannot be stable and effective.
    Additionally, the filler used in the treatment of the rural sewage has a poor impact resistance; and under the impact of the rainwater, a filler membrane peels off easily and a strain is washed away, thus affecting the final treatment effect.
    Therefore, the above technical problem of the rural sewage hasn't been addressed effectively all the time.
    Summary An objective of the present invention is to provide a double-tank type oxidation ditch integrated system capable of operating alternatively and continuously, which has a small floor area, a low device cost and convenient transportation, and may effectively address a problem of an unideal treatment effect due to a large short-term flow of rural sewage and no diversion between rainwater and sewage. A main innovative point lies in that an oxidation ditch technique and an A-O process are combined, aeration and sedimentation procedures are implemented alternatively by means of double tanks and sewage treatment is carried out continuously, so that a convenience is provided for subsequent maintenance, an impact resistance is strong, other facilities such as a regulating tank, a primary sedimentation tank, a secondary sedimentation tank, sludge reflow and the like turn out to be unnecessary, a treatment effect is stable and effective, a structure is simple, and an industrial application is convenient.
    To achieve the above objective of the present invention, a technical solution of the present invention is as follows: a double-tank type oxidation ditch integrated system capable of operating alternatively and continuously includes two tank bodies; and a water inlet branch pipe and a water outlet branch pipe capable of independently controlling start and stop are respectively disposed on the two tank bodies.
    The two tank bodies are designed into a form of an oxidation ditch, and serially connected to form a treatment unit; and at least one aeration apparatus is disposed in the oxidation ditch of each tank body.
    The two tank bodies respectively and alternatively serve as an aeration 2 biochemical region and a sedimentation region by means of an opening-closing action of the water inlet branch pipe and the water outlet branch pipe for use, and such an operation is repeated to carry out sewage treatment continuously. A treatment process is carried out in two cycles; in an operation of a first cycle, the water inlet branch pipe of the first tank body and the water outlet branch pipe of the second tank body are opened, the aeration apparatus in the first tank body is started, the water outlet branch pipe of the first tank body and the water inlet branch pipe of the second tank body are closed, and the aeration apparatus in the second tank body is stopped; rural sewage enters the oxidation ditch of the first tank body, completes an aerobic reaction in a region close to the aeration apparatus, and completes facultative aerobic and relatively anaerobic reactions in a region far from the aeration apparatus; the sewage is circulated and reflowed in the tank body; a part of sewage enters the second tank body via a serial pipeline for sedimentation; sludge is sedimented on a bottom of the tank body; and clear water after the sedimentation is discharged from the water outlet branch pipe of the second tank body. After the operation lasts for set time, the cycle is switched to enter a second cycle, the water inlet branch pipe of the first tank body and the water outlet branch pipe of the second tank body are closed, the aeration apparatus in the first tank body is stopped, the water outlet branch pipe of the first tank body and the water inlet branch pipe of the second tank body are opened, and the aeration apparatus in the second tank body is started; and the rural sewage enters the oxidation ditch from the second tank body for treatment, and then sediments in the first tank body to flow out.
    The double tanks are alternative to complete one treatment process in two cycles. Partially, the first tank body having the aeration apparatus opened in the first cycle is an aeration biochemical region to complete the oxidation ditch treatment of the rural sewage; and the second tank body having the aeration apparatus closed is a sedimentation region, and further takes an anaerobic effect in the sedimentation region. As a result, in the second tank body, a sedimentation stage of the first cycle also becomes an anaerobic stage of the second cycle; after the entry of the second cycle, the second tank body starts aeration biochemical treatment; and thus one A-O process is completed in the two cycles. With an alternative operation of the two tank bodies, the A-O process is combined with the oxidation ditch process, so that a treatment capacity of the rural sewage is improved, other auxiliary devices turn out to be unnecessary, and a floor area is saved. Meanwhile, the sludge sedimented on the bottom of the second tank body in the first cycle becomes activated sludge biochemically treated in the second cycle, so the pipeline and the device do not need to be increased additionally for such treatment as sludge reflow; and the operation is circulated repeatedly to play a maximum effect of the sedimentation sludge.
    Further, the time for each cycle in the treatment process may be the same and may also be different, and is adjusted according to an actual treatment condition during the day or at night. Generally, the time for each cycle is controlled between 4-12 h.
    In a switching process of the two cycles, a buffer cycle may further be increased; and within the buffer cycle, the water inlet branch pipes and the water outlet branch pipes of the two tank bodies are closed simultaneously, the aeration apparatus opened in the tank body in a previous cycle is closed, the aeration apparatus closed in the other tank body in the previous cycle is opened, and an integral pump station connected to the water inlet branch pipes of the two tank bodies keeps open. The buffer cycle is beneficial to reducing a velocity of a water flow in the tank body of an original aeration biochemical region, and guarantees that the quality of effluent in a next cycle is stable and effective. Meanwhile, in the tank body of an original sedimentation region, the bottom activated sludge is suspended in the water flow by means of aeration, thus making adequate preparations for the aeration biochemical treatment in the next cycle. In addition, because of the instability of intermittent rural sewage, the integral pump station collects the sewage in the buffer cycle to take water storage, uplift and regulation effects, thus guaranteeing the continuous water inflow in the next cycle. The time of the buffer cycle is controlled at 30 min to 1 h.
    Further, the two tank bodies are arranged side by side, and may be distributed on the ground, and semi-buried or buried under the ground, so as to be adapted for actual conditions in different rural areas.
    In the system, the two tank bodies in the form of the oxidation ditch may be designed into a form of two and more ditches as required, with the purpose of achieving the above operation solution overall. In consideration of convenience in use in the rural area, an optimal selection is to design structures of the two tank bodies as follows.
    Each tank body is divided by a clapboard to form two oxidation ditch channels on a length direction, and head and tail water of the two oxidation ditch channels is communicated; one water inlet branch pipe and one water outlet branch pipe are 4 respectively disposed corresponding to the two oxidation ditch channels and on head ends of the two tank bodies to connect system water inlet pipe and water outlet pipe, the system water inlet pipe is connected to the integral pump station, and tail ends of the two tank bodies are serially connected via a communication pipe; and one aeration apparatus is at least disposed in the two oxidation ditch channels.
    Preferably, two aeration apparatuses are provided in the oxidation ditches of the tank bodies, one being disposed in front of the oxidation ditch channel of the corresponding water inlet branch pipe, and the other being disposed in the rear of the oxidation ditch channel of the corresponding water outlet branch pipe. By means of oxygenation of the aeration apparatus, along with a change of an oxygen concentration in the oxidation ditch, aerobiotic, facultative anaerobic and relatively anaerobic reactions occur. Generally, only the aeration apparatus in front of the oxidation ditch of the corresponding water inlet branch pipe needs to be started. If a content of ammonia nitrogen of the sewage in the tank is high, the ammonia nitrogen in the effluent is unqualified, and there is a need to start two aeration apparatuses.
    Further, the aeration apparatus selects one or a combination of a rotating disc surface aerator, an inverted-umbrella type surface aerator and a rotating brush surface aerator. The water flow close to the surface aerator in the ditch has a large velocity, so that the activated sludge is smashed. The water flow far from the surface aerator has a small velocity, so that the activated sludge is agglomerated, a bacterial flora on the sludge is agglomerated and smashed repeatedly and thus a flocculent property of the activated sludge is improved.
    In order to further improve the treatment efficiency, a suspended spherical filler and/or a square filler and/or a hollow spherical filler with a built-in sponge filler is disposed in the oxidation ditch of each tank body. A volume capacity of the filler in the oxidation ditch is 15%-30%. As the filler flowing in the ditch is continuously impacted by the rotating disc surface aerator and other surface aerators, it is easy to obtain a membrane that is resistant to the impact and not easy to peel off, to adhere on a surface of the filler. The membrane has a strong capacity and is very suitable for treatment of unstable rural sewage with a very large short-term flow and a strong impact force. Particularly, for the treatment of the rural sewage after being impacted by heavy rain, the bacterial flora is not washed away easily and an ecological effect is recovered easily. The flowing filler forms the effect of an MBBR fluidized bed in the oxidation ditch, to implement an activated sludge method, a contact oxidation method, 5 and a coexistence process of the activated carbon and the contact oxidation (a filler surface membrane), and enhance the sewage treatment capacity.
    Further, the clapboard in each tank body is a plate at least having a group of symmetrical peaks and valleys on a cross section. The valley is more beneficial to gathering the suspended filler. Most preferably, the clapboard is a plate having an S-shaped cross section or a Z-shaped plate or a wave-shaped plate.
    Further, a flow booster may be increased in the oxidation ditch in each tank body, so as to help the circulation flowing of the water flow.
    Further, the tank bodies are made of a hollow winding Polypropylene (PP), to obtain a good heat preservation effect.
    Further, an electromagnetic/electric valve is disposed on the water inlet branch pipe of each tank body, and an oxidation ditch effluent apparatus communicated with the water outlet branch pipe uses an adjustable electric effluent weir, with an adjustable range between 5 cm to 30 cm. Start and steering of the aeration apparatus, start and stop of the electromagnetic/electric valve on the water inlet branch pipe, and start and stop as well as a height of the adjustable electric effluent weir of the oxidation ditch communicated with the water outlet branch pipe are set by a program through a Programmable Logic Controller (PLC) control console to operate automatically.
    The present invention has the following beneficial effects:
    1. Tank bodies are designed into a form of an oxidation ditch, so that oxidation ditch circulation is implemented in the tank bodies, problems of a large flow and a large impact strength of rural sewage in short time are effectively addressed, a regulating tank and a pump station do not need to be provided, and a problem that sewage and rainwater in a rural area are not diverted may also be addressed once for all by means of the oxidation ditch tank bodies of the present invention; and a primary settlement tank do not need to be provided, so a civil construction cost and a device cost are greatly reduced.
    2. With a double-tank serial-connected double-cycle operation, aeration and sedimentation procedures are implemented alternatively. As the sewage treatment is carried out continuously, an A-O treatment process is further implemented. Sludge sedimented in a previous cycle becomes activated sludge of an oxidation ditch process in a next cycle, so that the sufficient activated sludge effectively improves a treatment capacity. A secondary sedimentation tank does not need to be provided, so 6 that a sludge discharge apparatus and a reflow apparatus are omitted; and thus, the whole system is skillful and reasonable in layout, simple in structure, stable and effective in treatment effect and convenient for an industrial application.
    3. A flowing filler is added to the oxidation ditches of the tank bodies, so an impact resistance is strong, an activated sludge method, a contact oxidation method, and a coexistence process of the activated carbon and the contact oxidation (a filler surface membrane) are implemented, and the sewage treatment capacity is enhanced. Brief Description of the Drawings Fig. 1 is a front view of Embodiment 1. Fig. 2 is a left view of Fig. 1. Fig. 3 is a top view of Fig. 1. Fig. 4 is a front view of Embodiment 2. Fig. 5 is a left view of Fig. 4. Fig. 6 is a top view of Fig. 4. Fig. 7 is a front view of Embodiment 3. Fig. 8 is a left view of Fig. 7. Fig. 9 is a top view of Fig. 7. Fig. 10 is a front view of Embodiment 4. Fig. 11 is a left view of Fig. 10. Fig. 12 is a top view of Fig. 10. Fig. 13 is a schematic diagram of Embodiment 5. Fig. 14 is a schematic diagram of Embodiment 6. Fig. 15 is a schematic diagram of Embodiment 7. Detailed Description of the Embodiments Embodiment 1: as shown in Fig. 1, Fig. 2 and Fig. 3, an operation is carried out in two cycles. The time of each cycle during the day is controlled at 4 h, and the time of each cycle at night is controlled at 8 h. For a first oxidation ditch tank body 1 and a second oxidation ditch tank body 2, the two tank bodies are made of a hollow winding PP; a first water inlet branch pipe 1.1, a second water inlet branch pipe 1.2, a first water outlet branch pipe 2.1 and a second water outlet branch pipe 2.2 capable of controlling start and stop independently are disposed on the first oxidation ditch tank 7 body 1 and the second oxidation ditch tank body 2; the first oxidation ditch tank body 1 and the second oxidation ditch tank body 2 are arranged side by side, and semi-buried under the ground; the first oxidation ditch tank body 1 and the second oxidation ditch tank body 2 are respectively divided by a clapboard 3, to form two oxidation ditch channels on a length direction, and head and tail water of the two oxidation ditch channels are communicated; the first water inlet branch pipe 1.1 and the second water inlet branch pipe 1.2 are connected to a system water inlet pipe 4; the first water outlet branch pipe 2.1 and the second water outlet branch pipe 2.2 are connected to a system water outlet pipe 5; tail ends of the first oxidation ditch tank body 1 and the second oxidation ditch tank body 2 are serially connected via a communication pipe 6; and a rotating disc surface aerator 7 is respectively disposed in the two oxidation ditch channels of each tank body, one being disposed in front of the oxidation ditch channel of the corresponding water inlet branch pipe, and the other being disposed in the rear of the oxidation ditch channel of the corresponding water outlet branch pipe.
    In the operation of a first cycle, the first water inlet branch pipe 1.1 of the first oxidation ditch tank body 1 and the second water outlet branch pipe 2.2 of the second oxidation ditch tank body 2 are opened, the rotating disc surface aerator 7 in the first oxidation ditch tank body 1 is started, the first water outlet branch pipe 1.1 of the first oxidation ditch tank body 1 and the second water inlet branch pipe 2.1 of the second oxidation ditch tank body 2 are closed, and the rotating disc surface aerator 7 in the second oxidation ditch tank body 2 is stopped; rural sewage enters the oxidation ditch of the first oxidation ditch tank body 1, completes an aerobic reaction in a region close to the aeration apparatus, and completes facultative aerobic and relatively anaerobic reactions in a region far from the aeration apparatus, the sewage is circulated and reflowed in the tank body; a part of sewage enters the second oxidation ditch tank body 2 via a serial pipeline for sedimentation; sludge is sedimented on a bottom of the tank body; and clear water after the sedimentation is discharged from the second water outlet branch pipe 2.2 of the second oxidation ditch tank body 2. After the operation lasts for set time, the cycle is switched to enter a second cycle, the first water inlet branch pipe 1.1 of the first oxidation ditch tank body 1 and the second water outlet branch pipe 2.2 of the second oxidation ditch tank body 2 are closed, the rotating disc surface aerator 7 in the first oxidation ditch tank body 1 is stopped, the first water outlet branch pipe 1.1 of the first oxidation ditch 8 tank body 1 and the second water inlet branch pipe 2.1 of the second oxidation ditch tank body 2 are opened, and the rotating disc surface aerator 7 in the second oxidation ditch tank body 2 is started; and the rural sewage enters the oxidation ditch from the second oxidation ditch tank body 2 for treatment, and then sediments in the first oxidation ditch tank body 1 to flow out. A suspended spherical filler is disposed in the oxidation ditch of each tank body. A volume capacity of the suspended spherical filler in the oxidation ditch is 15%-30%. An electric valve 12 is disposed on the first and second water inlet branch pipes
    1.1, 2.1; and an oxidation ditch effluent apparatus communicated with the first and second water inlet branch pipes 2.1, 2.2 uses an adjustable electric effluent weir 8, with an adjustment range of 5 cm to 30 cm. Start and steering of the rotating disc surface aerator 7, start and stop of the electric valve 12 on the first and second water inlet branch pipes 1.1, 1.2, and start and stop as well as a height of the adjustable electric effluent weir 13 of the oxidation ditches communicated with the first and second water outlet branch pipes 2.1, 2.2 are set by a program through a PLC control console to operate automatically. Embodiment 2: as shown in Fig. 4, Fig. 5 and Fig. 6, referring to Embodiment 1, based upon this, an integral pump station 9 is increased. The integral pump station 9 is connected to the system water inlet pipe 4, so that a buffer cycle may be provided in a switching process of the two cycles. Within the buffer cycle, continuous water inflow may further be implemented, and the inflowed water is stored in the integral pump station 9. Within the buffer cycle, the first and second water inlet branch pipes
    1.1, 2.1 and the first and second water outlet branch pipes 2.1, 2.2 are closed, the opened rotating disc surface aerator 7 in the first oxidation ditch tank body 1 is closed, the closed rotating disc surface aerator 7 in the second oxidation ditch tank body 2 is opened, and the integral pump station 9 connected to the first and second water inlet branch pipes 1.1, 2.1 keeps open. The time of the buffer cycle is controlled at 30 min to 1h. Embodiment 3: as shown in Fig. 7, Fig. 8 and Fig. 9, referring to Embodiment 2, the rest of characteristics keep unchanged, and the rotating disc surface aerator 7 is changed into an inverted umbrella surface aerator 10 to be disposed on front and rear ends of the clapboard 3. Embodiment 4: as shown in Fig. 10, Fig. 11 and Fig. 12, referring to Embodiment 2, the rest of characteristics keep unchanged, and the rotating disc surface aerator 7 9 is changed into a rotating brush surface aerator 11.
    In the above embodiments 1-4, the two tank bodies may further be distributed on the ground, and buried under the ground, so as to be adapted for actual conditions in different rural areas.
    In the above Embodiments 1-4, generally, only the aeration apparatus in front of the oxidation ditch of the corresponding water inlet branch pipe needs to be started. If a content of ammonia nitrogen of the sewage in the tank is high, the ammonia nitrogen in the effluent is unqualified, and there is a need to start two aeration apparatuses. A flow booster may be increased in the oxidation ditch in each tank body, so as to help the circulation flowing of the water flow.
    Embodiment 5: as shown in Fig. 13, referring to Embodiment 1 or 2, the tank body clapboard 3 is a plate having an S-shaped cross section.
    Embodiment 6: as shown in Fig. 14, referring to Embodiment 1 or 2, the tank body clapboard 3 is a plate having a Z-shaped cross section.
    Embodiment 7: as shown in Fig. 15, referring to Embodiment 1 or 2, the tank body clapboard 3 is a plate having a wave-shaped cross section.
    The described embodiments are merely a part of embodiments, rather than all embodiments, of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall pertain to the protection scope of the present invention. 10
    权利要求:
    Claims (17)
    [1]
    1. An integrated system with a double oxidation channel, which can work alternatively and continuously, consisting of two tank bodies, in which a branch for the water supply and a branch for the water discharge, which can independently control the starting and stopping, on the two tank bodies are fitted; the two tank bodies are designed in the form of an oxidation trench and are connected in series to form a treatment unit; and at least one aeration device is located in the oxidation trench of each tank body; and the two tank bodies serve as an aeration biochemical area and a sedimentation area respectively by means of an open-closing action of the water supply and the water discharge branch for use, and such operation is repeated to continuously carry out the wastewater treatment.
    [2]
    The double tank oxidation lock integrated system which can alternatively and continuously operate according to claim 1, wherein a purification process is performed in two cycles; In a first cycle operation, the water supply branch of the first tank body and the water discharge branch of the second tank body are opened, the aeration device in the first tank body is started, the water discharge branch of the first tank body and the water supply branch of the second tank body are closed, and put the aeration device in the second tank body; after the set time, the cycle is switched to enter a second cycle, the water supply branch of the first tank body and the water discharge branch of the second tank body are closed, the aeration device in the first tank body is stopped, the water discharge branch of the first tank body and the water supply branch of the second tank body are opened, and the aeration device in the second tank body is started up.
    [3]
    The oxidation lock type integrated system with double tanks which can alternatively and continuously operate according to claim 2 of claim 2, wherein the time is set equal or different in each cycle and is controlled between 4 and 12 hours.
    11
    [4]
    The integrated dual tank oxidation lock type system which can alternatively and continuously operate according to claim 2, wherein in one switching process of the two cycles, one buffer cycle is increased; and within the buffer cycle, the water supply pipes and the water discharge pipes of the two tank bodies are closed simultaneously, the aeration device which was opened in the tank body in a previous cycle is closed, the aeration device which was closed in the other tank body in the previous cycle is opened, and an integral pumping station connected to the water supply lines of the two tank bodies is kept open.
    [5]
    The integrated double tank oxidation lock type system which can alternatively and continuously operate according to claim 4, wherein the time of the buffer cycle is controlled from 30 minutes to 1 hour.
    [6]
    The double tank oxidation lock integrated system which can alternatively and continuously operate according to claim 1, wherein the two tank bodies are placed side by side and distributed over the ground or semi-buried and buried underground.
    [7]
    The dual tank oxidation lock type integrated system which can alternatively and continuously operate according to claim 1, wherein each tank body is divided by a hinged board to form two longitudinal oxidation lock channels, and the head and tail water of the two oxidation lock channels is communicated; a water supply branch and a water discharge branch are respectively removed according to the two oxidation ditch channels and on the head ends of the two tank bodies to connect the system water supply pipe and the water discharge pipe together, the system water supply pipe is connected to the integral pumping station and the ends of the two tank bodies are connected in series through a communication pipe; and an aeration device is removed at least in the two oxidation ditch channels.
    [8]
    The dual tank oxidation lock integrated system alternatively and continuously operable according to claim 7, wherein two aeration devices are provided in the oxidation locks of the tank bodies, one of which is removed before the oxidation lock from the corresponding water supply line, and the others are discharged at the back of the oxidation lock of the corresponding water discharge pipe.
    [9]
    The dual tank oxidation lock integrated system which can alternatively and continuously operate according to claim 8, wherein each aeration device is one or a combination of a rotating disk surface aerator, an inverted umbrella-like surface aerator and a rotating brush surface aerator.
    [10]
    The dual tank oxidation lock integrated system alternatively and continuously operating according to claim 9, wherein in the oxidation lock of each tank a suspended ball filler and / or an MBBR {(moving bed biofilm reactor) square filler and / or a hollow ball filler with a built-in sponge filler is removed.
    [11]
    The integrated dual tank oxidation lock type system that can alternatively and continuously operate according to claim 10, wherein a volume capacity of the filler in the oxidation lock is 15% -30%.
    [12]
    The double tank oxidation lock type integrated system which can alternatively and continuously operate according to claim 7, 8, 9, 10 and 11, wherein the hinged board in each tank body is a plate having at least one group of symmetrical peaks and troughs on each tank body. a cross section.
    [13]
    The dual tank oxidation lock integrated system which can alternatively and continuously operate according to claim 12, wherein the clapper plate is an S-shaped cross-sectional plate or a Z-shaped plate or a wave-shaped plate.
    [14]
    The dual tank oxidation lock integrated system which can alternatively and continuously operate according to claim 7, wherein a booster is provided in the oxidation lock of each tank body.
    [15]
    The double tank oxidation lock integrated system which can alternatively and continuously operate according to claim 7, wherein the tank bodies are made of a hollow wrap polypropylene (PP).
    [16]
    The integrated dual tank oxidation lock type system which can alternatively and continuously operate according to claim 9, wherein an electromagnetic / electric valve is placed on the water supply branch of each tank body, while an oxidation trench connected to the branch of the tank body. water discharge is communicated, using an adjustable electric discharge jet, and starting and controlling the aeration device, starting and stopping the solenoid / electric valve on the water supply branch, and starting and stopping as well as a height of the adjustable electric effluent thruster of the oxidation ditches communicated with the water drain branch are automatically set by a program through a PLC (Programmable Logic Controller) control console to operate.
    [17]
    The integrated double tank oxidation lock type system which can alternatively and continuously operate according to claim 16, wherein the adjustable height of the adjustable electrical effluent weir is 5 cm to 30 cm. 14
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    同族专利:
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    CN110078216B|2021-11-16|
    CN110078216A|2019-08-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR100225971B1|1997-06-23|1999-10-15|한상배|Wastewater treatment methods and plants for removing nitrogen and phosphor|
    CN1283564C|2004-04-27|2006-11-08|北京市环境保护科学研究院|Alternation internal circulation aerobe reactor|
    CN101607774A|2009-04-28|2009-12-23|陕西科技大学|A kind of sewage disposal device and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910469602.4A|CN110078216B|2019-05-31|2019-05-31|Double-tank oxidation ditch integrated system capable of alternately and continuously running|
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