JPH0222076Y2 - - Google Patents
Info
- Publication number
- JPH0222076Y2 JPH0222076Y2 JP2624884U JP2624884U JPH0222076Y2 JP H0222076 Y2 JPH0222076 Y2 JP H0222076Y2 JP 2624884 U JP2624884 U JP 2624884U JP 2624884 U JP2624884 U JP 2624884U JP H0222076 Y2 JPH0222076 Y2 JP H0222076Y2
- Authority
- JP
- Japan
- Prior art keywords
- anaerobic
- mesh
- thin mesh
- flooring
- thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 31
- 238000009408 flooring Methods 0.000 claims description 17
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000010865 sewage Substances 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
Description
【考案の詳細な説明】
本考案は、嫌気性微生物により汚水を処理する
床材の改良に関するものである。[Detailed Description of the Invention] The present invention relates to the improvement of flooring materials that treat wastewater using anaerobic microorganisms.
嫌気性床は、床材の表面に嫌気性微生物に
より構成される生物膜を形成させ、該生物膜と汚
水との接触により汚水の浄化を行なうものである
が、近年小・中容器の屎尿浄化槽に於いても、沈
澱分離室や消化室内に嫌気性床を設け、汚水の
処理能力を高める方策の開発が進められている。 Anaerobic floors form a biofilm composed of anaerobic microorganisms on the surface of the flooring material, and purify sewage through contact between the biofilm and the sewage.In recent years, small and medium-sized human waste septic tanks have been Also, measures are being developed to increase wastewater treatment capacity by installing anaerobic beds in sedimentation chambers and digestion chambers.
而して、前記小・中容器の浄化槽の嫌気性床
材としては、ポリエステル、ナイロン等の合成樹
脂からなるネツトや織物、フイルムシート等が多
く使用されており、通常第１図に示す如き状態で
床材Ａが槽Ｂ内に多数並設されている（実開昭
57−58493号，特開昭57−59688号）。 As the anaerobic flooring materials for the septic tanks of small and medium containers, nets, fabrics, film sheets, etc. made of synthetic resins such as polyester and nylon are often used, and they are usually in the condition shown in Figure 1. A large number of flooring materials A are installed side by side in tank B (Jitsukai Sho.
No. 57-58493, Japanese Patent Publication No. 57-59688).
しかし乍ら、これ迄の嫌気性床に於いて使用
されている合成樹脂製ネツトやフイルム等の床
材は、何れも所謂好気性床用として開発された
ものであり、これをそのまま嫌気性床へ転用し
ているため、生物膜の付着性や付着した生物膜の
剥離等の点に多くの問題が残されている。 However, the synthetic resin nets, films, and other flooring materials that have been used for anaerobic floors up until now have all been developed for so-called aerobic floors, and they can be used as they are for anaerobic floors. However, many problems remain regarding the adhesion of biofilms and the detachment of attached biofilms.
即ち、嫌気性生物膜は好気性生物膜よりも床
材に対する付着性が極めて弱く、且つ生物膜自体
も脆弱である。従つて、単に網状や波形に加工し
ただけの床材では、嫌気性汚泥の補捉が十分に
行なわれず、その結果床が完全な機能を発揮す
るまでに相当長期間を必要とするという問題があ
る。 That is, anaerobic biofilms have much weaker adhesion to floor materials than aerobic biofilms, and the biofilms themselves are also more fragile. Therefore, with flooring materials that are simply processed into a mesh or corrugated shape, anaerobic sludge cannot be captured sufficiently, and as a result, the problem is that it takes a considerable period of time for the floor to perform its full function. be.
また、嫌気性床では、所謂有機物のメタン発
酵により多量のメタンガスが発生し、ガス抜きが
円滑に行なえない場合には、発生したメタンガス
が床内に蓄積されることがある。その結果、
床材に過大な浮力が作用すると共に、蓄積したガ
スが間欠的に抜ける際に床内を撹乱し、生物膜
の剥離を起生するという問題がある。 Furthermore, in an anaerobic bed, a large amount of methane gas is generated due to so-called methane fermentation of organic matter, and if degassing cannot be performed smoothly, the generated methane gas may accumulate in the bed. the result,
There is a problem in that excessive buoyancy acts on the flooring material, and when the accumulated gas is released intermittently, it disturbs the interior of the floor and causes detachment of the biofilm.
本考案は、従前の小・中形浄化槽用の嫌気性
床に於ける上述の如き問題の解決を課題とするも
のであり、嫌気性生物膜の付着性が極めて高く、
然かもメタンガスによる過大な浮力の発生や生物
膜の剥離を略完全に防止し得る様にした、嫌気性
床材の提供を目的とするものである。 The present invention aims to solve the above-mentioned problems with conventional anaerobic beds for small and medium-sized septic tanks.
Moreover, the object of the present invention is to provide an anaerobic flooring material that can almost completely prevent the generation of excessive buoyancy due to methane gas and the detachment of biological films.
前述の如き目的を達成するため、本願考案の考
案者は網状の床材を基本としてその網目寸法、
薄網板の重ね枚数及び重ね間隔等をパラメータに
とり、嫌気性生物膜の付着性能試験や床材の浮
力測定、生物膜の剥離試験を繰返し行なつた。本
願考案はこれ等の各種試験結果を基にして開発さ
れたものであり、二枚以上の耐食性薄網板を相互
の間隔が20mm以下となるように対向状に立設して
材ユニツトを形成し、該材ユニツトを適宜の
間隔に並立させて床材とするものである。 In order to achieve the above-mentioned purpose, the inventor of the present invention basically uses a net-like flooring material, and the mesh size,
Using parameters such as the number of stacked thin mesh plates and the stacking interval, we repeatedly conducted anaerobic biofilm adhesion performance tests, flooring buoyancy measurements, and biofilm peeling tests. The present invention was developed based on the results of these various tests, and consists of forming a material unit by erecting two or more corrosion-resistant thin mesh plates facing each other with a distance of 20 mm or less. The material units are then arranged side by side at appropriate intervals to form a flooring material.
以下、第２図乃至第４図に示す本考案の各実施
例に基づいて詳細を説明する。 Hereinafter, details will be explained based on each embodiment of the present invention shown in FIGS. 2 to 4.
第２図は本考案に係る床材の一例を示す斜面
図であり、図に於いて１は耐食性の薄網板、２は
スペーサ、３は汚水流通路、４は薄網板の網目、
Ｃは２枚以上の薄網板を組み合せて形成した材
ユニツトである。 FIG. 2 is a perspective view showing an example of the flooring material according to the present invention. In the figure, 1 is a corrosion-resistant thin mesh board, 2 is a spacer, 3 is a sewage flow path, 4 is a mesh of the thin mesh board,
C is a material unit formed by combining two or more thin mesh plates.
前記薄網板１は、大さ0.3〜2.0mmφ程度のポリ
エチレンやナイロン等の合成樹脂糸で格子状の網
目に編み上げられており、網目４の寸法は２〜10
mm角に形成されている。尚、本実施例に於いては
合成樹脂糸で編み上げた薄網板を使用している
が、第４図に示す如く合成樹脂製薄波板やステン
レス製薄波板５に網目穴４を穿孔した構成のもの
でもよく、耐食性を具備するものであれば如何な
る材質のものでもよい。また、薄網板１の網目４
の形状は如何なる形状であつてもよいが、網目の
寸法は第３図に示す如く最大距離を10mm以下、
最小距離ｍを２mm以上とする必要がある。網目が
大きすぎると生物膜の付着性能が向上せず、且つ
網目が小さすぎると、閉塞を生じて汚水の流通や
ガス抜きが円滑に行なえないからである。 The thin mesh plate 1 is woven into a lattice-like mesh using synthetic resin threads such as polyethylene or nylon with a size of about 0.3 to 2.0 mmφ, and the mesh 4 has a size of 2 to 10 mm.
It is formed into a mm square. In this embodiment, a thin mesh plate knitted with synthetic resin yarn is used, but as shown in FIG. It may be made of any material as long as it has corrosion resistance. In addition, the mesh 4 of the thin mesh plate 1
The shape of the mesh may be any shape, but the maximum distance of the mesh should be 10 mm or less as shown in Figure 3.
The minimum distance m needs to be 2 mm or more. This is because if the mesh size is too large, the biofilm adhesion performance will not be improved, and if the mesh size is too small, clogging will occur and sewage circulation and degassing will not be carried out smoothly.
前記各薄網板１は夫々対向状に立設され、スペ
ーサ３を介設して相互の間隔Ｓを20mm以下に保持
した状態で一体的に組立てられ、材ユニツトＣ
が形成されている。尚、本実施例に於いては、３
枚の薄網板１を組付けて材ユニツトＣを形成し
ているが、薄網板１の枚数は２枚〜４枚位いの間
で任意に選定することができる。また、間隔Ｓは
10mm以下位いが最適であり、20mmを越えると嫌気
性生物膜の付着性能が著しく低下する。更に、本
実施例に於いてはスペーサ２を介設して一定の間
隔Ｓを設ける様にしているが、網目４の寸法が大
きく且つ薄網板１の組立枚数が少ない場合には、
各薄網板１が接触する状態で組立一体化してもよ
い。 Each of the thin mesh plates 1 is erected facing each other, and is assembled integrally with a spacer 3 interposed between them to maintain a mutual interval S of 20 mm or less.
is formed. In this example, 3
Although the material unit C is formed by assembling two thin mesh plates 1, the number of thin mesh plates 1 can be arbitrarily selected from about two to four. Also, the interval S is
A thickness of 10 mm or less is optimal; if it exceeds 20 mm, the adhesion performance of the anaerobic biofilm will deteriorate significantly. Furthermore, in this embodiment, spacers 2 are interposed to provide a constant interval S, but if the size of the mesh 4 is large and the number of assembled thin mesh plates 1 is small,
The thin mesh plates 1 may be assembled and integrated in a state in which they are in contact with each other.
上述の如く、薄網板１を組付けて形成された
材ユニツトＣは、処理すべき汚水の性状に応じて
適宜の間隔、例えば40〜150mmの間隔を置いて並
立され、槽（図示省略）内へ設置される。尚、
材ユニツトＣの槽内への設置方法は如何なる方法
であつてもよく、例えば予かじめ複数個の材ユ
ニツトＣを支持枠を用いて組付け、これを槽内に
固定するようにしてもよく、或いは各材ユニツ
トＣを夫々単独で槽床板に引き留めるか若しくは
重錘を用いて沈めるようにしてもよい。 As mentioned above, the material units C formed by assembling the thin mesh plates 1 are arranged in parallel at appropriate intervals, for example, 40 to 150 mm, depending on the properties of the wastewater to be treated, and are arranged in a tank (not shown). installed inside. still,
The material units C may be installed in the tank by any method; for example, a plurality of material units C may be assembled in advance using a support frame and then fixed in the tank. Alternatively, each material unit C may be individually held on the tank floor plate, or may be submerged using a weight.
次に本考案の作用効果について説明する。 Next, the effects of the present invention will be explained.
強制循環形の処理槽に於いては、槽内の汚水Ｗ
は、材ユニツトＣの間及び薄網板１の間の流通
路３を上方へ向けて流通する。本考案に於いて
は、２枚以上の薄網板１を対向状に配設すると共
に、その相互の間隔Ｓを約20mm以下に規制するよ
うにしているため、従前の薄網一枚から成る床
材に比較して、汚水内の嫌気性汚泥の付着性能が
著しく向上し、例えば間隔Ｓ＝３mm（網板２枚）
の場合には、網板一枚の場合に比較して約2.5倍
の付着性能を得ることができる。 In forced circulation type treatment tanks, the sewage W in the tank
flows upward through the flow passages 3 between the material units C and between the thin mesh plates 1. In the present invention, two or more thin mesh plates 1 are arranged facing each other, and the mutual spacing S between them is regulated to approximately 20 mm or less, so that the conventional thin mesh plates 1 are made of a single thin mesh plate. Compared to flooring materials, the adhesion performance of anaerobic sludge in wastewater is significantly improved, for example, the spacing S = 3 mm (2 mesh plates)
In the case of , it is possible to obtain about 2.5 times the adhesion performance compared to the case of a single mesh plate.
また、一定寸法の網目４を有する薄網板１を使
用しているため、二枚以上の薄網板を組み合わせ
ても発生したメタンガスが床内に蓄積されるこ
とが殆んど無く、極めて円滑に汚水通路３を通つ
て槽上方へ排出されることになる。その結果、
床材Ｃに過度な浮力が作用したり、或いは蓄積さ
れたメタンガスの間欠的な放散により、付着した
嫌気性生物膜が剥離されるということも皆無にな
る。 In addition, since the thin mesh board 1 having meshes 4 of a certain size is used, even if two or more thin mesh boards are combined, the generated methane gas will hardly accumulate in the floor, and the process will be extremely smooth. Then, the waste water passes through the waste water passage 3 and is discharged upward from the tank. the result,
There is no possibility that the attached anaerobic biofilm will be peeled off due to excessive buoyancy acting on the floor material C or due to intermittent dissipation of accumulated methane gas.
更に、間隔Ｓを５〜20mm位いにした場合には、
両薄網板１，１間に形成される汚水流通路３によ
つて循環汚水が整流され、汚水を強制循環させる
場合でも、偏流や短絡流の発生が略完全に防止さ
れることになる。 Furthermore, when the distance S is increased to about 5 to 20 mm,
The circulating sewage is rectified by the sewage flow path 3 formed between the two thin mesh plates 1, 1, and even when the sewage is forced to circulate, the occurrence of drift and short-circuit flow can be almost completely prevented.
本考案は上述の通り、極めて簡単な構成にも拘
わらず、秀れた実用的効用を有するものである。 As mentioned above, the present invention has excellent practical utility despite its extremely simple structure.
第１図は従前の薄網板を用いた床材の配設状
態を示す斜面図である。第２図は本考案に係る
床材の斜面図である。第３図は、本考案に係る
床材を形成する薄網板の部分拡大図である。第４
図は、他の実施例に係る薄網板の部分拡大図であ
る。
１……耐食性薄網板、２……スペーサ、３……
汚水流通路、４……網目、Ｃ……材ユニツト。
FIG. 1 is a perspective view showing the arrangement of a conventional flooring material using thin mesh boards. FIG. 2 is a perspective view of the flooring material according to the present invention. FIG. 3 is a partially enlarged view of a thin mesh board forming the flooring material according to the present invention. Fourth
The figure is a partially enlarged view of a thin mesh plate according to another embodiment. 1... Corrosion-resistant thin mesh plate, 2... Spacer, 3...
Sewage flow path, 4...Mesh, C...Material unit.
Claims (1)
mm以下となるように対向状に立設して材ユニツ
トＣを形成し、該材ユニツトＣを適宜の間隔に
並立させて成る嫌気性床材。 Two or more corrosion-resistant thin mesh plates 1 with a mutual spacing S of 20
This anaerobic flooring material is made by forming material units C that are erected facing each other so that the distance is less than mm, and the material units C are arranged in parallel at appropriate intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984026248U JPS60140698U (en) | 1984-02-24 | 1984-02-24 | Anaerobic filter bed material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984026248U JPS60140698U (en) | 1984-02-24 | 1984-02-24 | Anaerobic filter bed material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60140698U JPS60140698U (en) | 1985-09-18 |
| JPH0222076Y2 true JPH0222076Y2 (en) | 1990-06-13 |
Family
ID=30522075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984026248U Granted JPS60140698U (en) | 1984-02-24 | 1984-02-24 | Anaerobic filter bed material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60140698U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10350503A1 (en) * | 2003-10-29 | 2005-06-16 | Herding Gmbh Filtertechnik | Reactor for anaerobic wastewater treatment |
-
1984
- 1984-02-24 JP JP1984026248U patent/JPS60140698U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60140698U (en) | 1985-09-18 |
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