JP2004167361A - Method for mounting rocking bed contact material - Google Patents

Method for mounting rocking bed contact material Download PDF

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Publication number
JP2004167361A
JP2004167361A JP2002335602A JP2002335602A JP2004167361A JP 2004167361 A JP2004167361 A JP 2004167361A JP 2002335602 A JP2002335602 A JP 2002335602A JP 2002335602 A JP2002335602 A JP 2002335602A JP 2004167361 A JP2004167361 A JP 2004167361A
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Japan
Prior art keywords
contact material
mounting
warp
floor
contact
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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.)
Pending
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JP2002335602A
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Japanese (ja)
Inventor
Toshio Yamane
俊男 山根
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Publication date
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Priority to JP2002335602A priority Critical patent/JP2004167361A/en
Publication of JP2004167361A publication Critical patent/JP2004167361A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Biological Treatment Of Waste Water (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for mounting rocking bed contact materials, the method being simple and with not relatively expensive cost. <P>SOLUTION: Fixtures for mounting rocking beds on a treating vessel forms a pair one above the other apart a distance. A plurality of pairs of such fixtures are arranged and one set of the contact materials constituting the rocking beds are arranged for the plurality of the pairs of such fixtures. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、水処理装置の揺動床接触材の取付け方法に関する。
【0002】
【従来の技術】
図4(a)は公知の揺動床接触材を用いた処理槽の一例の正面図、図4(b)はその平面図である。処理槽1の上部には、被処理排水供給路10と、処理水排出路11とが設けられている。処理槽1内には、被処理水12に水没した状態で、揺動床が設けられている。この揺動床は、処理槽1の枠体への取付け具3U、3Lが上下に設けられ、これらの取付け具3U、3Lどうしの間に、多数の接触材2が配置された構成とされている。揺動床の取付け具3U、3Lは棒状体とされている。処理槽1の内部における揺動床よりも下側の位置には、複数の空気噴出口9が設けられており、これら空気噴出口9は、槽外のブロワ13に連通されている。
【0003】
図2(a)は接触材2の一例の概略構造を示す斜視図、図2(b)は簾状の接触材の一例の概略構造を示す斜視図である。但し、緯糸(後述)は、経糸(後述)の一方の側に突設している緯糸のみを描き、他方側に突出している緯糸は、図が煩雑になるので省略してある。接触材2は芯材となる経糸14とこの経糸14から螺旋放射状にかつ揺動可能に突出された多数の緯糸15とによって構成されている。なお、図2(a)及び図2(b)では緯糸15の突出状態は簡略化されて図示されている。緯糸15は、経糸14に撚りが与えられることで、螺旋放射状に形成されている。
【0004】
接触材2の両端部に設けられる取付け部6、7は、1本(図2(a)の場合)又は複数本(図2(b)の場合)の経糸14の垂直方向の両端部に、不織布などからなる、両端部が開口された袋状部が縫製されたものであり、この袋状部に上記棒状体とされた取付け部3U、3Lが挿通される構造となっている。即ち、ひと組接触材の両端部に設けられた袋状体を、上下ひと組である取付け具3U、3Lにそれぞれ挿通して接触材が配置されることになる。
【0005】
【発明が解決しようとする課題】
このような構成の揺動床接触材取付け方法においては、上記の通り、接触材ひと組に対し上下1対の固定箇所が必要なため、例えば接触材を10組取り付けるには、10対即ち上下合計20箇所の固定箇所が必要であり、作業が複雑となりコストが割高となる。又揺動床接触材そのものも、袋状部の縫製箇所が増加し割高となる。
【0006】
そこで本発明は、揺動床接触材の取付け方法において、簡便でコストが割高にならない取付け方法を提供することを目的とする。
【0007】
【課題を解決するための手段】
上記課題を解決するための本発明の請求項1記載の揺動床接触材の取付け方法(発明1)は、処理槽への揺動床の取付け具が、距離をおいて上下一対をなしており、この取付け具が複数対配置され、取付け具複数対に対して、前記揺動床を構成する接触材をひと組配置することを特徴とする揺動床接触材の取付け方法である。
【0008】
揺動床取付け具は、処理槽に直接設けられても良く、別に準備した枠体取付け具を設け、これに接触材を配置して揺動床とし、これを処理槽内に沈めるようにされても良い。いずれの形態であっても、取付け具に配置される揺動床接触材の取付け方法は同じである。
【0009】
請求項2(発明2)では、接触材は、その両端部のみが上下いずれかの取付け具に固定され、そのほかの取付け具の箇所においては固定せず、当該接触材がその取付け具を跨ぐ状態で繰り返し上下に折り返される。
【0010】
この場合、例えば、上方の取付け具にその一端部を固定された接触材が、対となる下方の取付け具を跨ぎ越し、上方に折り返されて、その横に配置されている隣の一対の上方にある取付け具に向かい、その取付け具で下方に向かって折り返されてから、その取付け具の対となる下方の取付け具に向かって折り返されると、接触材の折り返し形状は、山形又は鋸型となる。
【0011】
また、上方の取付け具にその一端部を固定された接触材が、対となる下方の取付け具を跨ぎ越し、跨ぎ越した接触材が、一旦その横に配置されている隣の一対の下方にある取付け具に向かって折り返されてから、その取付け具の対となる上方の取付け具に向かって折り返されると、接触材の折り返し形状は、矩形波形状となる。いずれの折り返し方にするかは、状況に応じて決められれば良い。
【0012】
請求項3(発明3)では、接触材は、両端部が取付け部とされ、その取付け部同士の間に経糸が配置され、この経糸に所定長さの多数の緯糸が織り込まれ、経糸に加えられた捩りによりこの経糸に撚りが与えられることで、前記多数の緯糸が経糸のまわりに螺旋状に配列されるとともに経糸から放射状に突出されている。
【0013】
本発明においては、接触材ひと組とは、微生物が付着する排水中で揺動可能な揺動材と、この揺動材が取り付けられてこれを支持する芯材とをひと組として構成する接触材をいい、芯材が1本の糸状のもの又は複数本の糸状芯材が並列されて簾状に構成されているものも含む。なお、芯材の両端部は、接触材を取付け具に固定するための取付け部とされるが、その取付け部としては、芯材の端部に両端が開口された袋状部が設けられたものとされていても良い。又、簾状の接触材では複数の芯材が固定された細長い袋状部とされていてもよい。
【0014】
【発明の実施の形態】
本発明による揺動床接触材の取付け方法を、図1から図3に基づき詳細に説明する。図1(a)は本発明による揺動床接触材の取付け方法を用いた揺動床の一例の正面図、図1(b)はその側面図、図1(c)はその平面図である。
【0015】
処理槽1への揺動床の取付け具3U、3Lが、上下方向に距離をおいて複数対配置される。これら上方取付け具3Uから下方取付け部3Lの間に、揺動床を構成するための接触材2が配置される。この時、ひと組の接触材2の長さは、対をなす上下取付け具3U、3L間の距離よりも長く用意する。
【0016】
図1においては、接触材の折り返し形状が矩形波形状とされた場合の一例である。この場合の具体的な取付け方法は、まず、接触材2の一端の取付け部6を最初の取付け具3Uに挿通して固定し、ここを起点4として接触材2を展開する。展開された接触具2を、対となる下方取付け部3Lで、隣接する他の一対の取付け具の下方取付け具3L’側に折り返し、その取付け具3L’を巻き回してその対となる上方の取付け具3U’側に更に折り返す。このようにして、順次隣り合う対となる取付け具3U”、3L”に接触材を巻き回して折り返し、これを繰り返す。全ての取付け具3を巻き回された接触材2は、もう一方の端部の取付け部7を最後の取付け具3Eに挿通して2度目の固定を行い、ここを終点5とする。
【0017】
折り返し形状が山形ないし鋸型形状となる場合は、折り返し先の固定具の位置が異なるだけで、他は矩形波形状の場合と同様であるから、再述しない。
【0018】
図1に示す揺動床において、取付け具3U、3L、3U’、3L’、・・・3Eは棒状体にて構成され、起点4となる第1の固定箇所に対応した接触材2の部分は、不織布などによる袋状部6として形成され、この袋状部6に取付け具3Uが通された構成となっている。これは従来の取付け方法と同じであり、図2において取付け具3Uの箇所を起点4と読み替えればよい。
【0019】
終点5となる第2の固定箇所においても、同様に袋状部7に取付け具3Eが通された構成となっている。これも従来の取付け方法と同じであり、図2において取付け具3Lの箇所を終点5と読み替えればよい。
【0020】
こうして、接触材2の固定箇所は、最初の固定箇所4と最後の固定箇所5との2カ所のみとし、そのほかの取付け具3U、3L、3U’、3L’、3U”・・・は、やはり従来の取付け具3と同じ取付け具をそのまま使用する。図1に示すように接触材2が取付け具3L、3U’、3L’、3U”、3L”・・・を跨ぐ状態で取り回し、これら途中の取付け具では、接触材2を固定することなく単に折り返し点としてのみ利用する。
【0021】
接触材2が取り付けられたら、それの隣り合う次の接触材2’を、上記と同様にして揺動床に取り付ける。その作業は上述と同じであるから再述しない。このようにして、固定箇所数が減ったため、揺動床接触材の取付時間は、従来の三分の一となった。
【0022】
また、接触材2が簾状である場合は、この取付け作業は接触材2の幅が広くなる分だけ手間が掛かるが、全体としては一度の取付け作業で揺動床が完成するので、積算取付け作業時間がより少なくなる。
【0023】
図3は、隣り合うひと組の折り返し具同士の間のみ接触材の緯糸をカットした揺動床の一例の正面図である。この場合も、上記と同様に、揺動床接触材の取付け時間波、従来の三分の一となった。
【0024】
【発明の効果】
以上のように、本発明によると、揺動床接触材の取付け具複数対に対して前記揺動床を構成する接触材をひと組配置し、また、揺動床接触材は、その両端のみを上下いずれかの取付け具に固定し、そのほかの取付け具においては固定せず、当該接触材が取付け具を跨ぐ状態で繰り返し上下に折り返すだけにとどめることで、水処理装置製造者においては、従来の方法ようなひと組の接触材の取付け毎に、上下2カ所ずつ固定するという極めて煩雑な作業から解放されて簡便となり、この作業に由来するコストの削減が出来る。また、揺動床接触材製造者においては、袋状部の縫製カ所が減るのでコストも割高にならず、取り付ける事ができる。
【0025】
また、本発明の揺動床接触材の取付け方法は、取付け部どうしの間に経糸が配置され、この経糸に所定長さの多数の緯糸が織り込まれ、経糸に加えられた捩りによりこの経糸に撚りが与えられることで、前記多数の緯糸が経糸のまわりに螺旋状に配列されるとともに、経糸から放射状に突出されているような形状の接触材に対し、特に有効かつ好適である。
【図面の簡単な説明】
【図1】(a)本発明による揺動床接触材の取付け方法を用いた揺動床処理槽の一例の正面図である。
(b)その側面図である。
(c)その平面図である。
【図2】(a)接触材の一例の概略構造を、その一部を省略して示す斜視図である。
(b)簾状の接触材の一例の概略構造を、その一部を省略して示す斜視図である。
【図3】隣り合うひと組の折り返し具同士の間のみ接触材の緯糸をカットした揺動床の一例の正面図である。
【図4】(a)公知の揺動床接触材を用いた揺動床処理槽の一例の正面図である。
(b)その平面図である。
【符号の説明】
1 処理槽
2 接触材
3U、3L、・・・3E 取付け具
4 最初の固定箇所(起点)
5 最後の固定箇所(終点)
6、7 袋状取付け部
10 被処理排水供給路
11 処理水排出路
12 非処理水
13 ブロア
14 経糸
15 緯糸
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for mounting a swinging floor contact member of a water treatment apparatus.
[0002]
[Prior art]
FIG. 4A is a front view of an example of a processing tank using a known oscillating floor contact material, and FIG. 4B is a plan view thereof. A treated water supply passage 10 and a treated water discharge passage 11 are provided above the treatment tank 1. An oscillating floor is provided in the treatment tank 1 in a state of being submerged in the water to be treated 12. The oscillating floor has a configuration in which attachments 3U and 3L to the frame of the processing tank 1 are provided vertically, and a large number of contact members 2 are arranged between these attachments 3U and 3L. I have. The fixtures 3U and 3L of the swinging floor are rod-shaped. A plurality of air outlets 9 are provided at a position below the oscillating floor inside the processing tank 1, and these air outlets 9 communicate with a blower 13 outside the tank.
[0003]
FIG. 2A is a perspective view showing a schematic structure of an example of a contact material 2, and FIG. 2B is a perspective view showing a schematic structure of an example of a blind-shaped contact material. However, the weft (to be described later) describes only the weft projecting from one side of the warp (to be described later), and the weft projecting to the other side is omitted because the drawing becomes complicated. The contact material 2 is composed of a warp 14 serving as a core material and a large number of wefts 15 projecting from the warp 14 in a spiral radial and swingable manner. 2A and 2B, the projected state of the weft 15 is shown in a simplified manner. The weft 15 is formed in a spiral radial shape by twisting the warp 14.
[0004]
Attachment portions 6 and 7 provided at both ends of contact material 2 are provided at one end (in the case of FIG. 2A) or a plurality of warps 14 (in the case of FIG. 2B) at both ends in the vertical direction. A bag-like portion made of non-woven fabric or the like and having both ends opened is sewn, and the rod-shaped attachment portions 3U and 3L are inserted into the bag-like portion. That is, the contact members are arranged by inserting the bag-like bodies provided at both ends of the one pair of contact members into the upper and lower sets of attachments 3U and 3L, respectively.
[0005]
[Problems to be solved by the invention]
In the swing floor contact material mounting method having such a configuration, as described above, one pair of upper and lower fixing points is required for one set of the contact material. A total of 20 fixing points are required, which complicates the operation and increases the cost. In addition, the oscillating floor contact material itself also becomes more expensive due to the increased number of sewn locations in the bag-shaped portion.
[0006]
Therefore, an object of the present invention is to provide a simple and inexpensive mounting method for a rocking floor contact material mounting method.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a method of mounting a rocking floor contact member according to the first aspect of the present invention, wherein the mountings of the rocking floor to the processing tank form a pair at a distance. In addition, there is provided a method of mounting a rocking floor contact member, wherein a plurality of pairs of the mounting members are arranged, and a pair of the contact members constituting the rocking floor are arranged for the plurality of pairs of mounting members.
[0008]
The oscillating floor fixture may be provided directly on the processing tank, or a separately prepared frame fixture is provided, and a contact material is arranged thereon to form a oscillating floor, which is submerged in the processing tank. May be. In any case, the method of attaching the swinging floor contact member arranged on the fixture is the same.
[0009]
According to claim 2 (invention 2), the contact material is fixed to only one of the upper and lower fittings at both ends, and is not fixed at the other fittings, and the contact material straddles the fitting. Is repeatedly folded up and down.
[0010]
In this case, for example, a contact material whose one end is fixed to the upper mounting tool straddles the lower mounting tool to be paired, is folded upward, and a pair of adjacent upper mounting members arranged next to the upper mounting tool is turned over. , Is folded downward by the fixture, and then folded toward the lower fixture which is a pair of the fixture, the folded shape of the contact material becomes a chevron or saw shape. Become.
[0011]
In addition, the contact material whose one end is fixed to the upper mounting tool straddles the lower mounting tool to be paired, and the straddling contact material is temporarily positioned below the pair of adjacent mounting tools arranged beside the pair. When the contact member is folded toward a certain fixture and then toward an upper fixture that is a pair of the fixture, the folded shape of the contact member becomes a rectangular wave shape. Which of the folding methods should be determined according to the situation.
[0012]
According to claim 3 (invention 3), the contact material has attachment portions at both ends, and a warp is arranged between the attachment portions. A large number of wefts of a predetermined length are woven into the warp, and the contact material is added to the warp. The warp is twisted by the given torsion, so that the plurality of wefts are spirally arranged around the warp and radially protrude from the warp.
[0013]
In the present invention, a pair of contact members is a contact member that includes a rocking member capable of rocking in drainage to which microorganisms adhere and a core member to which the rocking member is attached and supports the rocking member. The core material includes a single core material or a plurality of core materials arranged in parallel to form a cord. In addition, both ends of the core material are used as attachment portions for fixing the contact material to the fixture. As the attachment portion, a bag-like portion having both ends opened at the end of the core material was provided. It may be assumed. Further, the blind-shaped contact member may be formed as an elongated bag-shaped portion to which a plurality of core members are fixed.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
The method of mounting the swinging floor contact material according to the present invention will be described in detail with reference to FIGS. FIG. 1A is a front view of an example of a rocking floor using the method for mounting a rocking floor contact material according to the present invention, FIG. 1B is a side view thereof, and FIG. 1C is a plan view thereof. .
[0015]
A plurality of pairs of mounting units 3U and 3L of the oscillating floor to the processing tank 1 are arranged at a distance in the vertical direction. A contact member 2 for forming a swinging floor is disposed between the upper attachment 3U and the lower attachment 3L. At this time, the length of one set of the contact members 2 is prepared to be longer than the distance between the pair of upper and lower fixtures 3U and 3L.
[0016]
FIG. 1 shows an example in which the folded shape of the contact material is a rectangular wave shape. In this case, a specific mounting method is as follows. First, the mounting portion 6 at one end of the contact material 2 is inserted into and fixed to the first mounting tool 3U, and the contact material 2 is developed with the starting point 4 as a starting point. The unfolded contact tool 2 is folded back to the lower mounting tool 3L 'side of another pair of adjacent mounting tools at the pair of lower mounting portions 3L, and the mounting tool 3L' is wound to form a pair of upper mounting tools. Fold it back to the fixture 3U 'side. In this way, the contact material is wound around the pair of mounting tools 3U "and 3L" adjacent to each other and turned back, and this is repeated. The contact member 2 around which all the attachments 3 are wound is inserted for the second time by inserting the attachment portion 7 at the other end into the last attachment 3E, and this is set as the end point 5.
[0017]
When the folded shape is a mountain shape or a saw-shaped shape, the rest is the same as the case of the rectangular wave shape except for the position of the fixing tool at the folded destination, and thus will not be described again.
[0018]
In the oscillating floor shown in FIG. 1, the fittings 3U, 3L, 3U ′, 3L ′,... 3E are rod-shaped bodies, and the portion of the contact material 2 corresponding to the first fixed point serving as the starting point 4. Is formed as a bag-shaped portion 6 made of a nonwoven fabric or the like, and the fixture 3U is passed through the bag-shaped portion 6. This is the same as the conventional mounting method, and the position of the mounting tool 3U may be read as the starting point 4 in FIG.
[0019]
At the second fixing point, which is the end point 5, the attachment 3E is similarly passed through the bag-like portion 7. This is also the same as the conventional mounting method, and the location of the mounting tool 3L may be read as the end point 5 in FIG.
[0020]
Thus, the contact material 2 is fixed at only two places, the first fixing place 4 and the last fixing place 5, and the other mounting tools 3U, 3L, 3U ', 3L', 3U "... The same mounting tool as the conventional mounting tool 3 is used as it is, and as shown in Fig. 1, the contact material 2 is routed in a state of straddling the mounting tools 3L, 3U ', 3L', 3U ", 3L" ... In the mounting device of (1), the contact member 2 is used only as a turning point without fixing.
[0021]
After the contact member 2 is attached, the next contact member 2 'adjacent to the contact member 2 is attached to the swinging floor in the same manner as described above. The operation is the same as described above, and will not be described again. In this way, the number of fixing points was reduced, so that the installation time of the swinging floor contact material was reduced to one third of the conventional one.
[0022]
When the contact material 2 is in the form of a mat, this mounting work takes time as much as the width of the contact material 2 is widened. However, as a whole, the swinging floor is completed by a single mounting work. Work time is less.
[0023]
FIG. 3 is a front view of an example of an oscillating floor in which wefts of a contact material are cut only between a pair of adjacent folding tools. In this case, as in the above case, the installation time wave of the oscillating floor contact material was reduced to one third of the conventional one.
[0024]
【The invention's effect】
As described above, according to the present invention, one set of the contact members constituting the rocking floor is disposed for a plurality of pairs of the mounting members of the rocking floor contact material, and the rocking floor contact material is provided only at both ends thereof. In water treatment equipment manufacturers, the conventional method is to fix the upper and lower fixtures to one of the upper and lower fixtures, and not to fix the other fixtures, but to simply fold them up and down repeatedly while the contact material straddles the fixtures. Each time a set of contact members is attached as in the above method, the operation is extremely simple and free from the extremely complicated work of fixing two places at the top and bottom, and the cost derived from this work can be reduced. In addition, in the case of the swinging floor contact material manufacturer, the number of sewing places of the bag-shaped portion is reduced, so that the cost can be reduced and the mounting can be performed.
[0025]
Further, in the method of mounting the oscillating floor contact material of the present invention, a warp is arranged between the mounting portions, and a large number of wefts of a predetermined length are woven into the warp, and the warp is twisted by the twist added to the warp. By being twisted, the plurality of wefts are arranged spirally around the warp and are particularly effective and suitable for a contact material having a shape projecting radially from the warp.
[Brief description of the drawings]
FIG. 1 (a) is a front view of an example of an oscillating floor treatment tank using the oscillating floor contact material mounting method according to the present invention.
(B) It is the side view.
(C) It is the top view.
FIG. 2A is a perspective view showing a schematic structure of an example of a contact material, with a part thereof omitted.
(B) It is a perspective view which shows the schematic structure of an example of a blind-shaped contact material, a part of which is omitted.
FIG. 3 is a front view of an example of an oscillating floor in which a weft of a contact material is cut only between a pair of adjacent folding tools.
FIG. 4 (a) is a front view of an example of a rocking floor treatment tank using a known rocking floor contact material.
(B) It is the top view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tank 2 Contact material 3U, 3L, ... 3E Mounting fixture 4 Initial fixing point (starting point)
5 Last fixed point (end point)
6, 7 bag-shaped mounting section 10 treated wastewater supply path 11 treated water discharge path 12 non-treated water 13 blower 14 warp 15 weft

Claims (3)

処理槽への揺動床接触材の取付け具が、距離をおいて上下一対をなしており、この取付け具が複数対配置され、取付け具複数対に対して、前記揺動床を構成する接触材をひと組配置することを特徴とする揺動床接触材の取付け方法。The attachments of the rocking floor contact material to the processing tank form a pair of upper and lower parts at a distance, and a plurality of pairs of the fixtures are arranged. A method of mounting a swinging floor contact material, wherein one set of materials is arranged. 接触材は、その両端部のみが上下いずれかの取付け具に固定され、そのほかの取付け具においては固定せず、当該接触材が取付け具を跨ぐ状態で繰り返し上下に折り返されることを特徴とする請求項1記載の揺動床接触材の取付け方法。The contact material is characterized in that only its both ends are fixed to one of the upper and lower mountings, and is not fixed in other mountings, and the contacting material is repeatedly folded up and down while straddling the mountings. Item 4. The method for mounting a swinging floor contact material according to Item 1. 接触材は、両端部が取付け部とされ、その取付け部同士の間に経糸が配置され、この経糸に所定長さの多数の緯糸が織り込まれ、経糸に加えられた捩りによりこの経糸に撚りが与えられることで、前記多数の緯糸が経糸の周りに螺旋状に配列されるとともに経糸から放射状に突出されていることを特徴とする請求項1又は2記載の揺動床接触材の取付け方法。The contact material has attachment portions at both ends, and a warp is disposed between the attachment portions.A number of wefts of a predetermined length are woven into the warp, and the warp is twisted by the twist added to the warp. 3. The method of claim 1, wherein the plurality of wefts are spirally arranged around the warp and radially protrude from the warp.
JP2002335602A 2002-11-19 2002-11-19 Method for mounting rocking bed contact material Pending JP2004167361A (en)

Priority Applications (1)

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011519309A (en) * 2008-04-28 2011-07-07 ポステック アカデミー−インダストリー ファンデーション Biofilm reactor with helical structure and water treatment apparatus using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011519309A (en) * 2008-04-28 2011-07-07 ポステック アカデミー−インダストリー ファンデーション Biofilm reactor with helical structure and water treatment apparatus using the same

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