WO2012077173A1 - Appareil de traitement des eaux usées - Google Patents

Appareil de traitement des eaux usées Download PDF

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Publication number
WO2012077173A1
WO2012077173A1 PCT/JP2010/071823 JP2010071823W WO2012077173A1 WO 2012077173 A1 WO2012077173 A1 WO 2012077173A1 JP 2010071823 W JP2010071823 W JP 2010071823W WO 2012077173 A1 WO2012077173 A1 WO 2012077173A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
rotating
rotating shaft
treatment apparatus
sewage treatment
Prior art date
Application number
PCT/JP2010/071823
Other languages
English (en)
Japanese (ja)
Other versions
WO2012077173A8 (fr
Inventor
考恭 荻野
克則 清水
歳也 福田
Original Assignee
積水アクアシステム株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 積水アクアシステム株式会社 filed Critical 積水アクアシステム株式会社
Priority to CN201080069118.XA priority Critical patent/CN103097305B/zh
Priority to PCT/JP2010/071823 priority patent/WO2012077173A1/fr
Publication of WO2012077173A1 publication Critical patent/WO2012077173A1/fr
Publication of WO2012077173A8 publication Critical patent/WO2012077173A8/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C02F3/082—Rotating biological contactors
    • 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

Definitions

  • the present invention relates to a sewage treatment apparatus used for biological treatment of sewage.
  • a sewage treatment apparatus in which a plurality of rotating disks are provided on a rotating shaft with gaps, and each rotating disk is partially immersed in sewage in a treatment tank and rotated.
  • a fixed shaft is fixed to both ends of a water tank having a substantially semicircular cross-sectional shape, and a rotating shaft is externally fitted to the fixed shaft.
  • a structure provided with a plate is disclosed. This apparatus supports a rotating disk having a large weight by a thick rotating shaft and drives the rotating disk.
  • the device disclosed in Patent Document 2 is a single tank uniaxial wastewater treatment device, in which a rotating disk body for wastewater treatment is disposed on the inside and outside on the same axis, and an outer large-diameter rotating disk is provided. The upper side of the body is exposed to air, and aerobic oxidation, nitrification, and re-aeration reactions are performed. At the same time, the small-diameter rotating disk disposed inside the cylindrical timing is completely submerged in the wastewater. An anaerobic denitrification process is performed without air.
  • a lid 24 is fastened to an end face of a cylindrical body 22 by a bolt 24a, and a hollow shaft 25 has a flange portion 25a and a bolt / nut 25b at the center of the lid 24 (axial center of the cylindrical body 22). It is fixed by fixing with. Further, the shaft 25 is supported by a bearing 26, and is rotatably passed through the side wall 11a of the tank body 11 with a sealant interposed therebetween, so that the rotating disk 2 rotates in a substantially horizontal state. It has become.
  • a synthetic resin fixed plate fitted to the rotating shaft is used, and the same rotating plate made of synthetic resin is arranged around the fixed plate to rotate.
  • Some discs are attached to a fixed plate by heat fusion, and this fixed plate is inserted into a rotating shaft for attachment.
  • the rotating disk shaft is formed by a single shaft that penetrates or spans the tank body, and both ends thereof are supported by bearings provided on the side wall portion of the tank body. It is said that.
  • the present invention has been made in view of such a situation, and has a rotating disk shaft structure having high sewage treatment efficiency and excellent strength, and durability including a rotating disk structure that can prevent breakage.
  • An object is to provide an excellent sewage treatment apparatus and an economical sewage treatment apparatus.
  • a sewage treatment apparatus includes a treatment tank in which sewage to be treated is accommodated, a rotating shaft passed to a side wall facing the treatment tank, and sewage in the treatment tank.
  • a plurality of rotating discs that are partly immersed in the rotating shaft and spaced apart from the rotating shaft, and a drive that supplies a driving force to the rotating shaft to rotate the rotating disc
  • a sewage treatment apparatus for treating sewage by rotating the rotating disk includes a treatment tank in which sewage to be treated is accommodated, a rotating shaft passed to a side wall facing the treatment tank, and sewage in the treatment tank.
  • a plurality of rotating discs that are partly immersed in the rotating shaft and spaced apart from the rotating shaft, and a drive that supplies a driving force to the rotating shaft to rotate the rotating disc
  • a sewage treatment apparatus for treating sewage by rotating the rotating disk.
  • the sewage treatment apparatus of the present invention has the following characteristic configuration.
  • the inside of the rotating shaft is hollow, and includes a shaft end unit composed of a plurality of ribs arranged in parallel via a gap and a shaft passing through these ribs.
  • the base end portion of the shaft is exposed to the outside of the rotating shaft, the rib is disposed in the internal space of the rotating shaft, and the shaft is disposed on the axis of the rotating shaft.
  • the said rotating shaft is characterized by passing over the side wall which the said processing tank faces through the base end part of the said shaft.
  • an insertion hole for inserting the rotation shaft is provided, and a side plate is provided with a sandwiching plate in which flat portions and recesses are alternately provided along the circumferential direction.
  • a plurality of the sandwiching plates are inserted into the outer periphery of the plate, and between the flat portions of the adjacent sandwiching plates, there are a flat disk-shaped rotating disk and a convex portion, and are fitted into the concave portion of the sandwiching plate. It is preferable that the rotating disk provided with the possible bulging part is clamped as a set. Further, in the sandwiching portion in which the bulging portion is fitted into the recessed portion, both the sandwiching plate and the two rotating discs are integrally fused by pressing the heating fusion rod. preferable.
  • the outer peripheral shape of the cross section of the rotating shaft and the insertion hole of the holding plate are preferably substantially regular polygons, and may be substantially regular polygons whose corners are rounded.
  • the sewage treatment apparatus has a configuration in which the shaft end unit having the above-described configuration is attached to both ends of the rotating shaft, a rotating shaft with high strength can be obtained.
  • the rotating shaft since a shaft that penetrates the inner space of the rotating shaft is not necessary and the shaft end unit is provided with the shaft, the rotating shaft can be reduced in weight and cost can be reduced.
  • the gap between the rotating shaft and the insertion hole is, for example, A structure in which the rotating shaft and the insertion hole are fixed by driving a plate of polyethylene or the like can be employed.
  • the rotation of the rotating shaft can be efficiently transmitted to the clamping plate, and the stress applied to the rotating shaft can be reduced, so that the efficiency and durability of the sewage treatment apparatus can be further improved.
  • the two rotating plates and the sandwiching plate are sandwiched between the flat portions of the sandwiching plate, and are integrally fused by pressing the heat-sealing rod. Since the provided bulging part is fitted in the concave part of the sandwiching plate, it is firmly fixed.
  • the rotating disk rotates through the holding plate. Since it is firmly attached to the shaft, it will not be damaged.
  • FIG. 6 is a sectional view taken along line III-III in FIG. 5.
  • FIG. 8 is a cross-sectional view taken along line VV in FIG. 7. It is explanatory drawing which shows the arrangement
  • FIG. 10 is a cross-sectional view taken along line VII-VII in FIG. 9 and shows a state in which the sandwiching plate and the rotating disk are overlapped.
  • FIG. 1 is a front view of a sewage treatment apparatus according to an embodiment of the present invention in a partial cross section.
  • FIG. 2 is a cross-sectional view showing an example of a rotating shaft applied to the sewage treatment apparatus according to the embodiment of the present invention.
  • FIG. 3 is a view showing the shaft end unit of the rotating shaft viewed from the direction of the arrow X in FIG. 2, and
  • FIG. 4 is a perspective view of this shaft end unit.
  • the rotary sewage treatment apparatus includes a semi-cylindrical treatment tank 4 in which sewage to be treated is accommodated.
  • a rotary shaft 1 serving as a center of rotation of the rotary disks 2A and 2B includes a pipe 31 having a hollow cross section and a substantially square shape, ribs 15A and 15B arranged in parallel with a gap therebetween, and A shaft end unit 13 including a shaft 17 penetrating the ribs 15A and 15B is provided.
  • the ribs 15A and 15B and the shaft 17 are welded.
  • the base end portion of the shaft 17 is exposed to the outside of the rotating shaft 1, the ribs 15 ⁇ / b> A and 15 ⁇ / b> B are disposed in the inner space of the rotating shaft 1, and the shaft 17 is connected to the axis 30 of the rotating shaft 1. It is attached to the rotating shaft 1 in such a state that it is positioned above. Further, the end surface of the rib 15 ⁇ / b> A disposed on the most proximal side of the shaft 17 is disposed along the opening end surface of the pipe 31.
  • the pipe 31 and the ribs 15A and 15B are fixed by bolts in a state in which the balance of the entire rotating shaft is adjusted by centering work.
  • the contact plate 16 is attached to the gap between the end surface corner portion 31A of the pipe 31 and the rib 15A.
  • the end face of the pipe 31 is welded and further finished by a grinder.
  • the rotating shaft 1 having such a structure is passed through the proximal end portion of the shaft 17 to the opposite side walls 7A and 7B of the processing tank 4. Specifically, the base end portion of the shaft 17 of the shaft end unit 13 is supported by the bearings 11 provided on the side walls 7 ⁇ / b> A and 7 ⁇ / b> B of the treatment tank 4.
  • a rotating disk main body 3 is configured on the rotating shaft 1 by attaching rotating disks 2A having convex portions 23 and flat rotating disks 2B with gaps alternately. As described above, the rotating disk main body 3 is supported by the bearing 11 at the base end portion of the shaft 17 of the shaft end unit 13, and each rotating disk 2A... 2A and 2B. It is designed to rotate with the part immersed.
  • the rotating disks 2A... 2A and 2B... 2B are sandwiched between a pair of rotating disks 2A and 2B between the flat portions 51 of the sandwiching plates 5.
  • the bulging portion 22 provided at the center side end of the rotating disk 2A... 2A is fitted into the recessed portion 52 of the sandwiching plate 5 and is adjacent to the sandwiching portion between the flat portions 51 as will be described later.
  • the sandwiching plates 5 ... 5 and the rotating disks 2A and 2B are integrally fused by pressing the heat-sealing rod.
  • FIG. 5 is a front view showing an example of a clamping plate applied to the sewage treatment apparatus according to the embodiment of the present invention
  • FIG. 6 is a sectional view taken along line III-III in FIG.
  • the sandwiching plate 5 has a disc shape, and on the side surface, flat portions 51 and recessed portions 52 are alternately provided on a circumference equidistant from the center.
  • the flat portion 51 and the recessed portion 52 are formed such that the back side of the flat portion 51 on one side surface is a recessed portion 52 on the other side surface.
  • the insertion hole 53 is a hole for inserting the clamping plate 5 into the rotating shaft 1
  • the connecting rod pressing hole 54 is a hole for fastening the plurality of clamping plates 5, and the lower hole 58 is heat-sealed. It is a hole.
  • the outer peripheral shape of the cross section of the rotating shaft 1 and the insertion hole 53 are squares whose corners are rounded.
  • This clamping plate 5 may use two types of clamping plates in order to face the flat portions 51 of the clamping plates 5 adjacent to each other inserted into the rotary shaft 1, as shown in FIG.
  • the flat surface portion 51 and the recessed portion 52 are provided so that the flat surface portions 51 face each other with one kind of holding plate 5 by being alternately inserted into the rotary shaft 1 while being reversed. Is preferred.
  • the sandwiching plate 5 is made of a synthetic resin, and is formed of a hollow material as shown in FIGS. 5 and 6, or a foam having a skin layer, so that it is easy to push the heat-sealing rod. is there.
  • FIG. 7 is a front view showing an example of a fan-shaped plate of a rotating disk applied to the sewage treatment apparatus according to the embodiment of the present invention
  • FIG. 8 is a cross-sectional view taken along line VV of FIG.
  • This fan-shaped plate 21A has a bulging portion 22 formed at its center side end.
  • the bulging portion 22 is fitted and held in the recessed portions 52 of the holding plates 5 and 5 adjacent to each other.
  • convex portions 23... 23 are formed on the front and back of the fan-shaped plate 21A.
  • This fan-shaped plate 21A is preferable because it has a corrugated shape in which grooves are alternately formed on the front and back surfaces in the circumferential direction, since the surface area is increased and the rigidity is increased. Further, it is preferable to form such grooves in the radial direction for the above reasons.
  • the fan plate 21A is provided with a pilot hole 24A for heat fusion.
  • the fan-shaped plate 21B that forms the rotating disk 2B is a flat plate having the same size as the fan-shaped plate 21A, and is provided with only a pilot hole 24B for heat fusion.
  • the fan-shaped plates 21A and 21B are arranged so as to form a circle between the flat portions 51... 51 of the sandwiching plates 5. Are sandwiched in the recessed portion 52, and the sandwiching plates 5 ... 5 and the rotating disks 2A, 2B are fused by pressing the heat-sealing rod to form the rotating disk body 3.
  • fan plates 21A and 21B are arranged in the circumferential direction around the sandwiching plate 5 so as to be fused with the rotating discs 2A and 2B sandwiched between the sandwiching plates 5.
  • the bulging portions 22 at the center side end portions of the fan-shaped plates 21A are fitted and overlapped with the recessed portions 52 of the sandwiching plates 5 by shifting half by half.
  • another sandwiching plate 5 is overlapped with the planar portion 51 of the sandwiching plate 5 so that the planar portions 51 face each other.
  • a set of fan-shaped plates 21A and 21B is overlapped thereon in the same manner, and then the planar portion 51 of the sandwiching plate 5 to be superimposed next faces the planar portion 51 of the sandwiching plate 5 that has been previously superimposed, and the sector-shaped plate 21A. , 21B are stacked so as to sandwich.
  • the rotating disk main body 3 assembled in this way is inserted into the rotating shaft 1, the connecting rod 55 is passed through the insertion hole 54, and the side plate 56 is in contact with both side ends, and tightened with the tightening nut 57.
  • the sewage treatment apparatus of the present embodiment can be obtained.
  • the rotating disks 2A and 2B adjacent to each other are bonded or fused at their contact portions, because the rigidity of the rotating disk body 3 is increased.
  • the convex portion 23 of the sector plate 21A and the sector plate 21B may be bonded or fused.
  • the fan-shaped plate 21A is made of a synthetic resin sheet, by pressing the rotating disk 2A and the rotating disk 2B that are stacked after the unit is formed and inserting the heat-sealing rod into the position of the convex portion 23, It is simple and desirable to perform fusion in the same manner as the thermal fusion between the clamping plate 5 and the rotating disk 2A.
  • the fan-shaped plate 21A is provided with two or more bulged portions 22, and when each bulged portion 22 is fitted and held in the recessed portion 52 of the holding plate 5, the holding plate of the fan-shaped plate 21A. 5 is preferable because the fixing to the plate 5 becomes stronger and the attachment position of the fan-shaped plate 21A to the holding plate 5 is determined.
  • the rotating disks 2A and 2B adjacent to each other when the fan-shaped plates 21A and 21B are bonded in a state of being shifted by half in the circumferential direction, they are integrated in the circumferential direction, and the rotating disk main body 3 is integrated.
  • the strength of the is improved, which is preferable.
  • the fan-shaped plates 21A and 21B constituting the rotating disks 2A and 2B may be 30 ° or 45 ° when the diameter of the rotating disk is large, and 120 ° or 180 ° when the diameter is small.
  • the fan-shaped plates 21A and 21B by synthetic resin thin plates such as polyvinyl chloride thin plates and polyethylene resin thin plates by vacuum forming or pneumatic forming because they are easy to form and process, and are lightweight and inexpensive. .
  • a sprocket wheel 41 is attached to the shaft end unit 13 of the rotary shaft 1, and the sprocket wheel 41 is connected to a chain 43.
  • the sprocket wheel 41 and the chain 43 are attached to a drive shaft 42 of a variable speed reducer 40 that is directly connected to the motor 44.
  • the rotation of the motor 44 is decelerated by the variable speed reducer 40.
  • the drive shaft 42 transmits this reduced rotation to the rotary shaft 1 via the sprocket wheel 41 and the chain 43.
  • the rotating disks 2A, 2B... 2A, 2B attached to the rotating shaft 1 are rotated by the rotation of the rotating shaft 1.
  • the shaft end unit 13 has a configuration in which two ribs are arranged.
  • the configuration is not limited to two, but may have a configuration of three or more. In this case, the weight of the shaft end unit is increased, but the strength of the rotating shaft is further improved.
  • the end surface of the rib 15A arranged on the most proximal side of the shaft 17 is arranged so as to be along the opening end surface of the pipe 31, but the end surface of the rib 15A is arranged inside the opening end surface of the pipe 31. It may be a structure.
  • the shaft end unit having the above-described configuration is attached to both ends of the rotation shaft, so that a rotation shaft having excellent strength can be obtained.
  • a flat plate-shaped rotating disk and a rotating disk having a convex portion are sandwiched as a pair between adjacent holding plates inserted into the rotating shaft, two rotating disks Are arranged at substantially equal intervals, and even with a flat rotating disk with a small degree of processing, the treatment area can be increased sufficiently, and the sewage treatment efficiency is high.
  • the two rotating discs and the sandwiching plate are sandwiched between the flat portions of the sandwiching plate, and are integrally fused by pressing the heat-sealing rod, and have a convex portion. Since the plate is provided with a bulging part and fitted into the recessed part of the clamping plate, it becomes firmly fixed, so that bacteria adhere to the rotating disk or increase the diameter of the rotating disk Thus, even if the force acting on the sandwiching plate of the rotating disk increases, the rotating disk is firmly attached to the rotating shaft via the sandwiching plate and is not damaged.
  • the rotating disk type sewage treatment apparatus of the present invention is beneficial in that it is a sewage treatment apparatus having high sewage treatment efficiency and excellent durability, and has a large economic effect due to cost reduction associated with weight reduction of the rotating shaft. .
  • the apparatus of the present invention can be expected to contribute more than ever in the field of wastewater and wastewater treatment.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Dans un mode de réalisation de cet appareil de traitement des eaux usées, l'axe de rotation (1) est creux et est doté d'unités d'extrémité axiale (13) qui comprennent plusieurs nervures (15A, 15B) situées parallèlement à des creux entre elles et une tige (17) qui entre dans ces nervures (15A, 15B). Les unités d'extrémité axiale (13) sont fixées à l'axe de rotation (1) de façon à exposer les extrémités de base des tiges (17) à l'extérieur de l'axe de rotation (1) tout en plaçant les nervures (15A, 15B) dans l'espace intérieur de l'axe de rotation (1) et en plaçant les tiges (17) de façon à ce qu'elles soient sur la ligne axiale de l'axe de rotation (1). L'axe de rotation (1) constitue une jonction entre les parois latérales opposées du bassin de traitement (4) par les extrémités de base des tiges (17).
PCT/JP2010/071823 2010-12-06 2010-12-06 Appareil de traitement des eaux usées WO2012077173A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080069118.XA CN103097305B (zh) 2010-12-06 2010-12-06 污水处理装置
PCT/JP2010/071823 WO2012077173A1 (fr) 2010-12-06 2010-12-06 Appareil de traitement des eaux usées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/071823 WO2012077173A1 (fr) 2010-12-06 2010-12-06 Appareil de traitement des eaux usées

Publications (2)

Publication Number Publication Date
WO2012077173A1 true WO2012077173A1 (fr) 2012-06-14
WO2012077173A8 WO2012077173A8 (fr) 2013-03-28

Family

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Family Applications (1)

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PCT/JP2010/071823 WO2012077173A1 (fr) 2010-12-06 2010-12-06 Appareil de traitement des eaux usées

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CN (1) CN103097305B (fr)
WO (1) WO2012077173A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106315828A (zh) * 2016-10-28 2017-01-11 重庆川仪环境科技有限公司 一种用于生物转盘污水处理装置的转轴
CN113562839B (zh) * 2021-08-24 2023-03-14 青海洁神环境科技股份有限公司 一种三段式生物转盘污水处理装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350160U (fr) * 1976-10-01 1978-04-27
JPS543367A (en) * 1977-06-09 1979-01-11 Aisin Seiki Co Ltd Rotary plate type biological disposing device
JPS5463549A (en) * 1977-08-17 1979-05-22 Fmc Corp Device for treating sewage
JPS5531436U (fr) * 1978-08-19 1980-02-29
JPS5719089A (en) * 1980-07-07 1982-02-01 Sekisui Chem Co Ltd Waste water disposer
JPS57159592A (en) * 1981-03-25 1982-10-01 Sekisui Chem Co Ltd Filthy water-purifier
JPS5834089A (ja) * 1981-08-20 1983-02-28 Sekisui Chem Co Ltd 汚水処理装置
JP2000153288A (ja) * 1998-11-24 2000-06-06 Sekisui Environment Kk 回転円板式汚水処理装置及び回転円板

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101838091B (zh) * 2010-03-23 2012-04-04 武汉理工大学 玻璃钢净化罐

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350160U (fr) * 1976-10-01 1978-04-27
JPS543367A (en) * 1977-06-09 1979-01-11 Aisin Seiki Co Ltd Rotary plate type biological disposing device
JPS5463549A (en) * 1977-08-17 1979-05-22 Fmc Corp Device for treating sewage
JPS5531436U (fr) * 1978-08-19 1980-02-29
JPS5719089A (en) * 1980-07-07 1982-02-01 Sekisui Chem Co Ltd Waste water disposer
JPS57159592A (en) * 1981-03-25 1982-10-01 Sekisui Chem Co Ltd Filthy water-purifier
JPS5834089A (ja) * 1981-08-20 1983-02-28 Sekisui Chem Co Ltd 汚水処理装置
JP2000153288A (ja) * 1998-11-24 2000-06-06 Sekisui Environment Kk 回転円板式汚水処理装置及び回転円板

Also Published As

Publication number Publication date
WO2012077173A8 (fr) 2013-03-28
CN103097305B (zh) 2015-10-07
CN103097305A (zh) 2013-05-08

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