• 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 discloses a horizontal integrated Anoxic/Oxic oxidation ditch tank, including a horizontal tubular tank body, a sealing head on two ends of the tank body, and a water inlet and outlet provided on the tank body; a clapboard assembly is disposed in an inner cavity of the tank body along a length direction dividing the tank body into three chambers, wherein head ends of two chambers are communicated; a head end of another chamber forms a sealing chamber, which forms a flow channel of an anaerobic section; a head end of the sealing chamber is provided with the water inlet; tail ends of the three chambers are communicated with each other; two chambers except for the sealing chamber are communicated in an end-to-end manner forming a circulation oxidation ditch, which comprises a flow booster and/or oxygenator apparatus A flowing filler is filled in the circulation oxidation ditch.
    公开号:NL2025280A
    申请号:NL2025280
    申请日:2020-04-06
    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:

    Horizontal integrated Anoxic/Oxic (A/O) oxidation ditch tank 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 First of all, a main treatment difficulty of rural domestic sewage lies in an unstable flow in a whole day. For less than 4 h in morning, afternoon and evening, a 20-h water amount is discharged, and sewage discharge accounts for 50%-80% of water consumption. In this sense, an impact resistance of a device is highly demanding, and a regulating tank and a pump station are needed, 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.
    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 horizontal integrated Anoxic/Oxic (A/O) oxidation ditch tank, which has a small floor area, a low device cost and convenient transportation, may effectively address a problem of a large 1 short-term flow of rural sewage, uses an oxidation ditch technique to implement surface aeration to provide a convenient for subsequent maintenance, has a strong impact resistance, does not need to provide a regulating tank, a pump station and a primary sedimentation tank, is simple in structure and convenient for industrial application, and forms an anaerobic section by means of a clapboard to form an A/O oxidation ditch process.
    To achieve the above objective of the present invention, a technical solution of the present invention is as follows: a horizontal integrated A/O oxidation ditch tank includes a horizontal tubular tank body, a sealing head on two ends of the tank body, and a water inlet and a water outlet provided on the tank body; a clapboard assembly is disposed in an inner cavity of the tank body along a length direction of the tank body to divide the tank body into three chambers along the length direction; head ends of two chambers are communicated; a head end of another chamber forms a sealing chamber; the sealing chamber forms a flow channel of an anaerobic section; a head end of the sealing chamber is provided with the water inlet; tail ends of the three chambers are communicated with each other; two chambers except for the sealing chamber are communicated in an end-to-end manner to form a circulation oxidation ditch; at least one flow booster and/or oxygenator apparatus is disposed in the circulation oxidation ditch; and a flowing filler is filled in the circulation oxidation ditch.
    As a preferable embodiment, the clapboard assembly is composed of three plates forming different included angles with a horizontal plane around a central axis on the length direction of the tank body in the tank body, insides of the three plates share one long edge, outermost long edges of the three plates are connected to an inner wall of the tank body, head ends of any two adjacent plates of the three plates are connected to the sealing head on a head end of the tank body, the head end of one chamber forms the sealing chamber, the sealing chamber forms the flow channel of the anaerobic section, tail ends of the three plates and tail end of the tank body are spaced-apart to form a circulation port, the tail ends of the three chambers are communicated with each other, and two chambers except for the sealing chamber are communicated in an end-to-end manner to form the circulation oxidation ditch.
    As a preferable embodiment, cross sections of the three plates form a trigeminal shape, a T shape and a Y shape.
    As a preferable embodiment, the clapboard assembly is composed of two plates 2 arranged along a length of the tank body, one being a horizontal plate and the other being an inclined plate intersected with a surface of the horizontal plate to form an included angle of smaller than 180°, and outside end portions of the two plates are all connected to the inner wall of the tank body to divide the tank body into three chambers.
    As a preferable embodiment, cross sections of the two plates are of the T shape.
    As a preferable embodiment, the flow booster and/or oxygenator apparatus is one or a combination of a rotating disc surface aerator, an inverted-umbrella type surface aerator and a rotating brush surface aerator.
    As a preferable embodiment, the flowing filler is one or a combination of a spherical filler, a hollow sponge spherical filler and a square filler.
    As a preferable embodiment, the flowing filler is divided into upper, middle and lower layers, a first layer is floated on a liquid level and has a density of smaller than
    0.97 (t/m3), a second layer is suspended in a middle of sewage, flows while turning over and has a density of 0.97-1.1 (t/m3), and a third layer sinks to a bottom, has a density of 1.1 (t/m3) and turns over along with sludge.
    As a preferable embodiment, the tank body is made of a hollow winding Polypropylene (PP).
    As a preferable embodiment, the rotating disc surface aerator includes a rotating spindle erected on the tank body, a rotating disc sleeving to the rotating spindle, a decelerator, and a drive motor capable of rotating forwardly and reversely, two ends of the rotating spindle stretch out of a sidewall of the tank body, a bearing block is disposed correspondingly outside the sidewall of the tank body, a drive end of the rotating spindle is connected to the decelerator through the bearing block, and the decelerator is connected to the drive motor.
    Still preferably, multiple rotating discs are provided, and a diameter of each disc is gradually reduced from a highest point to a lowest point along an arc of a cross section of the tank body.
    The present invention has the following beneficial effects: a tank body of the present invention uses a hollow winding PP, so a service life and a strength are effectively guaranteed, and a hollow structure further serves as a certain heat preservation effect. A first critical core lies in that circulation of an oxidation ditch is implemented in the tank body, so that 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 body of the present invention; a primary settlement tank does not need to be provided, so a civil construction cost and a device cost are greatly reduced; as an anaerobic section is increased on the basis of a circulation channel of the oxidation ditch, with the adjustment on a manner for providing a clapboard, a floor area does not need to be increased additionally; and therefore, the structure is simple and the implementation is convenient.
    A second critical core lies in that a flowing filler is filled in the present invention to obtain an effect of a Moving Bed Biofilm Reactor (MBBR) fluidized bed; the present invention uses the flowing filler to implement an activated sludge method, a contact oxidation method and coexistence of activated sludge and contact oxidation (a filler surface membrane); and the activated sludge method may operate continuously or operate in a Sequencing Batch Reactor (SBR) intermittent manner in an operation process, and discharge the sludge via a sludge suction pump.
    A third critical core lies in that the present invention first provides the oxidation ditch in the tank body to form circulation, thus increasing a flowability of the inside filler along a length direction of the oxidation ditch; furthermore, with the utilization of the control of a density of the flowing filler, the circulation forms on upper and lower directions of a ditch body; and then, in combination with continuous impact of a rotating disc surface aerator, a strain on the filler becomes a super-strong strain that is resistant to the impact, not easily peeled off and strong in a membrane adhesive force within short time, and the impact resistance is 1-4 times of a common suspension filler. Particularly, for rural sewage, due to instability of a water inflow, a short-term flow is particularly large, the activated sludge is lost easily and an anti-impact flowing filler is required.
    A fourth critical core lies in that a water velocity close to the surface aerator in the oxidation ditch is large, so that a floccule of the activated sludge is smashed easily; however, a water velocity of a water region far from the surface aerator is small, so that the floccule of the activated sludge is agglomerated easily and not smashed easily, a digestive reaction is good, good physical and biochemical reactions form, and a nitrogen and phosphorus removal effect is improved.
    4
    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 front view of Embodiment 5. Fig. 14 is a left view of Fig. 13. Fig. 15 is a top view of Fig. 13. Fig. 16 is a front view of Embodiment 6. Fig. 17 is a left view of Fig. 16. Fig. 18 is a top view of Fig. 16. Fig. 19 is a schematic diagram illustrating installation of a rotating disc surface aerator.
    Detailed Description of the Embodiments The technical solution in embodiments of the present invention is described below clearly and completely in combination with accompanying drawings.
    Embodiment 1: as shown in Fig. 1, Fig. 2 and Fig. 3, a horizontal integrated A/O oxidation ditch tank includes a horizontal tubular tank body 1, a sealing head 2 on two ends of the tank body 1, and water inlet and outlet pipes (3, 4) provided on the tank body 1; the water outlet pipe 4 is connected to an adjustable weir plate 5; the tank body 1 is made of a hollow winding PP material; three clapboards 6 are arranged in an inner cavity of the tank body 1 along a length direction of the tank body; the three clapboards 6 form an inverted Y shape to divide the tank body 1 into left, right and lower chambers (1.1, 1.2, 1.3); an outer end of the vertically disposed clapboard 6 is connected to an inner wall of an upper end of the tank body 1; outer 5 ends of two symmetrically inclined clapboards 6a are connected to the corresponding inner wall of the tank body 1 in a sealing manner; head ends of the two symmetrically inclined clapboards 6a are connected to an inner wall of the sealing head 2 on a head end of the tank body 1 in a sealing manner; and a head end of the lower chamber 1.3 is sealed to form an anaerobic section.
    The water inlet pipe 3 is disposed on the head end of the lower chamber 1.3, and communicated with the anaerobic section; head ends of the left and right chambers (1.1, 1.2) are communicated with each other; the water inlet pipe 3 is disposed on the head end of the lower chamber 1.3; tail ends of the three clapboards 6 and the sealing head 2 on a tail end of the tank body 1 are spaced-apart; the tail ends of the left, right and lower chambers (1.1, 1.2, 1.3) are communicated with each other, so that the left and right chambers (1.1, 1.2) form a circulation channel of an oxidation ditch; a rotating disc surface aerator 8 is disposed in the left and right chambers (1.1, 1.2) of the circulation oxidation ditch; and a flowing filler 9 is filled in the circulation oxidation ditch. The flowing filler 9 is divided into upper, middle and lower layers; a first layer is floated on a liquid level and has a density of smaller than
    0.97 (m3), thus effectively forming an anaerobic reaction; a second layer is suspended in a middle of sewage, flows while turning over and has a density of
    0.97-1.1 (t/m3);and a third layer sinks to a bottom, has a density of 1.1 (tm3) and turns over along with sludge. A height of the filler in the sewage is controlled by means of the density. In order to form a membrane conveniently, a proportion of a recycled material and a carbon component may be added to the filler. A burr-shaped point is disposed on a surface of the filler, so that the membrane forms more easily. Therefore, the MBBR process is utilized better, and the total nitrogen is removed effectively.
    The rotating disc surface aerator 8 includes a rotating spindle 8.1 erected on the tank body 1, a rotating disc 8.2 sleeving to the rotating spindle 8.1, a decelerator 8.3, and a variable-frequency drive motor 8.4 capable of rotating forwardly and reversely; two ends of the rotating spindle 8.1 stretch out of a sidewall of the tank body 1; a bearing block 8.5 is disposed correspondingly outside the sidewall of the tank body 1; a drive end of the rotating spindle 8.1 is connected to the decelerator 8.3 through the bearing block 8.5; and the decelerator 8.3 is connected to the drive motor 8.4. Multiple groups of rotating discs 8.2 are provided, the multiple groups of rotating discs sleeve to the rotating shaft 8.1 at intervals, and outer diameters of each group of 6 rotating discs 8.2 are reduced gradually in an inside-out manner along with a height of a cross section of the tank body 1 to form a ladder-like arrangement. The diameters of each group of rotating discs may be 1200 mm, 1000 mm, 800 mm and 600 mm. An advantage for installation of the rotating disc surface aerator 8 lies in that the aerator may rotate bidirectionally. Generally, a forward oxygenation capacity is 100%, and a reverse oxygenation capacity is 70% with the reduced boosting. When a water inflow is small and a strong oxygenation capacity or sludge sedimentation turns out to be unnecessary, the aerator may rotate reversely to save an energy consumption and change a sludge layer, and thus the sludge is not settled. However, an inverted-umbrella type surface aerator and a rotating brush surface aerator cannot rotate reversely due to a limitation of an independent structure, and in case of reverse rotation, flow boosting and aeration cannot be implemented to burn the device.
    Embodiment 2: as shown in Fig. 4, Fig. 5 and Fig. 6, referring to Embodiment 1, the rest of characteristics keep unchanged; the rotating disc surface aerator 8 in the tank body 1 is removed, and an inverted-umbrella type surface aerator 10 is respectively disposed at a circulation port 7 on two ends in the tank body. The inverted-umbrella type surface aerator 10 is the conventional art, and includes a spindle, a motor, a decelerator and an inverted umbrella on the spindle; the spindle stretches into the tank body from a top end of the tank body; and the motor and the decelerator are installed outside the top end of the tank body, so as not to contact the sewage. Embodiment 3: as shown in Fig. 7, Fig. 8 and Fig. 9, referring to Embodiment 1, the rest of characteristics keep unchanged. The rotating disc surface aerator 8 in the tank body is removed, and a rotating brush surface aerator 11 is respectively disposed in left and right chambers (1.1, 1.2) of a circulation oxidation channel. The rotating brush surface aerator 11 is also the conventional art. Generally, the rotating brush surface aerator is composed of a motor, a decelerator, a spindle, an aeration rotating brush blade, a support, a coupler, a lubricant sealing system, etc.; the spindle rotates at a certain speed under the driving of a transmission apparatus; brush pieces made of carbon steel, a stainless steel material or a non-metal material are uniformly distributed on the spindle; in a process when the aeration rotating brush blade rotates horizontally along with the spindle, the brush pieces contact with the water, to continuously guide oxygen in the air to the water and throw the water to the air to 7 fully contact with the air; and the air is dissolved into the water quickly to complete an oxygenation process. Meanwhile, with a boosting action of an aeration rotating brush to the water, it is assured that a flow velocity of 0.15-0.3 m/s is provided at the bottom of the tank, so that the activated sludge is located in a suspended migration state to mix with the inflowed water well. The rotating brush aerator has the characteristics of high power efficiency, large oxygenation capacity, long service life, low power loss, low noise, and stable and reliable operation. Embodiment 4: as shown in Fig. 10, Fig. 11 and Fig. 12, a horizontal integrated A/O oxidation ditch tank includes a horizontal tubular tank body 1, a sealing head 2 on two ends of the tank body 1, and water inlet and outlet pipes (3, 4) provided on the tank body 1; the water outlet pipe 4 is connected to an adjustable weir plate 5; the tank body 1 is made of a hollow winding PP material; two clapboards 6 are arranged in an inner cavity of the tank body 1 along a length direction of the tank body; the two clapboards 6 form an inverted T shape to divide the tank body 1 into left, right and lower chambers (1.1, 1.2, 1.3); an outer end of the vertically disposed clapboard 6a is connected to an inner wall of an upper end of the tank body 1; two ends of the horizontal clapboard 6b are connected to the corresponding inner wall of the tank body 1 in a sealing manner; a head end of the horizontal clapboard 6b is connected to an inner wall of the sealing head on a head end of the tank body 1 in a sealing manner; a head end of the lower chamber 1.3 is sealed to form an anaerobic section; the water inlet pipe 3 is disposed on the head end of the lower chamber 1.3, and communicated with the anaerobic section; head ends of the left and right chambers (1.1, 1.2) are communicated; the water inlet pipe 3 is disposed on the head end of the lower chamber 1.3; tail ends of the two clapboards 6 and the sealing head on a tail end of the tank body 1 are spaced-apart; the tail ends of the left, right and lower chambers (1.1, 1.2, 1.3) are communicated with each other; the left and right chambers (1.1, 1.2) form a circulation channel of the oxidation ditch; an inverted-umbrella type surface aerator 10 is respectively disposed at a communicated place for the head ends of the left and right chambers (1.1, 1.2) and a communicated place for the tail ends of the left, right and lower chambers (1.1, 1.2,
    1.3); and a flowing filler 9 is filled in the circulation oxidation channel. The flowing filler 9 is divided into upper, middle and lower layers; a first layer is floated on a liquid level and has a density of smaller than 0.97 (1/m3), thus effectively forming an anaerobic reaction; a second layer is suspended in a middle of sewage, flows while turning over 8 and has a density of 0.97-1.1 (t/m3);and a third layer sinks to a bottom, has a density of 1.1 (m3) and turns over along with sludge.
    A height of the filler in the sewage is controlled by means of the density.
    In order to form a membrane conveniently, a proportion of a recycled material and a carbon component may be added to the filler.
    Aburr-shaped point is disposed on a surface of the filler, so that the membrane forms more easily.
    Therefore, the MBBR process is utilized better, and the total nitrogen is removed effectively.
    Embodiment 5: as shown in Fig. 13, Fig. 14 and Fig. 15, referring to Embodiment 1, the rest of characteristics keep unchanged; the rotating disc surface aerator 8 in the tank body is removed, and an inverted-umbrella type surface aerator 10 is respectively disposed at a circulation port 7 on two ends in the tank body.
    The inverted-umbrella type surface aerator 10 is the conventional art, and includes a spindle, a motor, a decelerator and an inverted umbrella on the spindle; the spindle stretches into the tank body from a top end of the tank body; and the motor and the decelerator are installed outside the top end of the tank body, so as not to contact the sewage.
    Embodiment 6: as shown in Fig. 16, Fig. 17 and Fig. 18, referring to Embodiment 1, the rest of characteristics keep unchanged.
    The rotating disc surface aerator 8 in the tank body is removed, and a rotating brush surface aerator 11 is respectively disposed in left and right chambers (1.1, 1.2) of a circulation oxidation channel.
    The rotating brush surface aerator 11 is also the conventional art.
    Generally, the rotating brush surface aerator is composed of a motor, a decelerator, a spindle, an aeration rotating brush blade, a support, a coupler, a lubricant sealing system, etc.; the spindle rotates at a certain speed under the driving of a transmission apparatus; brush pieces made of carbon steel, a stainless steel material or a non-metal material are uniformly distributed on the spindle; in a process when the aeration rotating brush blade rotates horizontally along with the spindle, the brush pieces contact with the water, to continuously guide oxygen in the air to the water and throw the water to the air to fully contact with the air; and the air is dissolved into the water quickly to complete an oxygenation process.
    Meanwhile, with a boosting action of an aeration rotating brush to the water, it is assured that a flow velocity of 0.15-0.3 m/s is provided at the bottom of the tank, so that the activated sludge is located in a suspended migration state to mix with the inflowed water well.
    The rotating brush surface aerator has the characteristics of high power efficiency, large oxygenation capacity, long service life, 9 low power loss, low noise, and stable and reliable operation.
    In the above Embodiments 1-6, the material is not limited to the hollow winding PP. The material may also be glass steel, stainless steel, and an ordinary PP material, but a strength and an anti-impact effect are weak.
    Additionally, the clapboard is a plate at least having a group of symmetrical peaks and valleys on a cross section, and may be S-shaped, wave-shaped, Z-shaped, etc. A simple alteration to the clapboard of the present invention falls within a protection scope of the present invention.
    According to a special flow characteristic of rural sewage, a tank body of the present invention is designed. On the basis of intrinsic small floor area and low manufacturing cost of the tank body, with the utilization of a circulation channel of an oxidation ditch in the tank body, the tank body may be adapted for problems that a short-term flow of the rural sewage is large, and rainwater and sewage are not diverted; and upon this, a flowing filler is added, so that three processes may be implemented in the tank body: 1. an activated sludge method; 2. a contact oxidation method; and 3. coexistence between activated sludge and contact oxidation. The three processes are mainly attributed to different water qualities of water inflows of the rural sewage; even under a condition where the water inflow has a high Chemical Oxygen Demand (COD), a low Biochemical Oxygen Demand (BOD) and no nutrition, an aminating reaction or a nitrating reaction may still be implemented, and an effect for removing a total nitrogen is very good. Particularly, in upgrade and reconstruction, a main difficulty lies in that the total nitrogen in effluent is not up to a standard; and with a manner of the oxidation ditch channel, the nitrogen and the phosphorus may be well removed under the water quality of the high COD and the low BOD.
    Additionally, under a condition where the floor area of the tank body is no longer increased, by improving a clapboard assembly in the tank body and increasing an anaerobic section, the present invention implements an A/O oxidation ditch process, and greatly improves the effect for removal of the nitrogen and the phosphorus.
    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 (12)
    [1]
    1. A horizontal integrated Anoxic / Oxic (A / O) oxidation tank, comprising a horizontal tubular tank body, a sealing head at two ends of the tank body and a water inlet and outlet provided on the tank body, in which a flap plate in an inner cavity of the tank body in the longitudinal direction of the tank body is placed to divide the tank body into three chambers in the longitudinal direction, the head ends of two chambers are connected together, one head end of another chamber forms a sealing chamber, the sealing chamber chamber forms a flow channel of an anaerobic part, a head end of the seal chamber is provided with the water supply, the tail ends of the three chambers are connected together, two chambers, except the sealing chamber, are connected together in an end-to-end way to create a circulation oxidation channel to form, at least one flow amplifier and / or oxygenator device is placed in the circulating oxide channel is removed, and a flowing filler is filled into the circulating oxidation channel.
    [2]
    The horizontal integrated A / O oxidation tank according to claim 1, wherein the flapping plate structure consists of three plates forming different included angles with a horizontal plane about a central axis on the longitudinal direction of the tank body in the tank body, the inner side of the three plates parts one long edge, the outer long edges of the three plates are connected to an inner wall of the tank body, the head ends of two adjacent plates of the three plates are connected to the sealing head on a head end of the tank body in a sealing way, the head end of one chamber forms the sealing chamber, the sealing chamber forms the flow channel of the anaerobic section, the tail ends of the three plates and the tail end of the tank body are spaced apart to form a circulation port, the tail ends of the three chambers become with each other communicated, and two chambers, except the seal chamber, are placed on one and communicated d-to-end way to form the circulation oxidation trough.
    [3]
    The horizontal integrated A / O oxidation tank according to claim 2, wherein the three plates have a trigeminal shape and a Y shape.
    [4]
    The horizontal integrated A / O oxidation tank according to claim 1, wherein the hinged board is composed of two plates arranged along a length of the tank body 11, one of which is a horizontal plate and the other of which is an inclined plate intersected with a surface of the horizontal plate, forming an angle of less than 180 °, and the outer end portions of the two plates are all connected to the inner wall of the tank body to divide it into three chambers.
    [5]
    The horizontal integrated A / O oxidation tank according to claim 4, wherein the cross sections of the two plates have a T shape.
    [6]
    The horizontal integrated A / O oxidation tank of claim 1, wherein the flow booster and / or oxygenator is one or a combination of a rotary disk surface aerator, an inverted umbrella-type surface aerator, and a rotary brush surface aerator.
    [7]
    The horizontal integrated A / O oxidation tank of claim 1, wherein the flowing filler is one or a combination of a spherical filler, a hollow sponge spherical filler, and a square filler.
    [8]
    The horizontal integrated A / O oxidation tank according to claim 6, wherein the flowing filler is divided into top, middle and bottom layers, a first layer is flown at the liquid level and has a density less than 0.97 (t / min). m3), a second layer is suspended in the middle of the sewage water, flows during the turn and has a density of 0.97-1.1 (t / m3), and a third layer sinks to the bottom, has a density of 1.1 (t / m3) and reverses together with the sludge.
    [9]
    The horizontal integrated A / O oxidation tank of claim 1, wherein the tank body is made of a hollow wrap polypropylene (PP).
    [10]
    The horizontal integrated A / O oxidation tank according to claim 4, wherein the rotary disc surface aerator consists of a rotary spindle mounted on the tank body, a rotary disc sleeve attached to the rotary spindle, a retarder and a drive motor that moves forward and backward. can rotate backwards, with two ends of the rotating spindle extending from a side wall of the tank body, a bearing block correspondingly discharged outside the side wall of the tank body, a driving end of the rotating spindle is connected to the retarder through the bearing block and the retarder is connected to the drive motor.
    [11]
    The horizontal integrated A / O oxidation tank according to claim 8, wherein a plurality of groups of rotating discs are provided, the plural groups of rotating discs are intermittently sleeve on the rotating shaft and the outer diameters of each group of rotating discs are gradually increased. reduced in an inside-out fashion along with a cross-sectional height of the tank body to form a ladder-like arrangement.
    [12]
    The horizontal integrated A / O oxidation tank of claim 1, wherein the water outlet includes an adjustable thrust plate. 13
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910469649.0A|CN110182951A|2019-05-31|2019-05-31|Horizontal integrated A/O oxidation ditch tank|
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