JP2001259680A - Aeration device and aeration method - Google Patents
Aeration device and aeration methodInfo
- Publication number
- JP2001259680A JP2001259680A JP2000082181A JP2000082181A JP2001259680A JP 2001259680 A JP2001259680 A JP 2001259680A JP 2000082181 A JP2000082181 A JP 2000082181A JP 2000082181 A JP2000082181 A JP 2000082181A JP 2001259680 A JP2001259680 A JP 2001259680A
- Authority
- JP
- Japan
- Prior art keywords
- air
- water
- aeration
- pond
- sludge
- 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.)
- Withdrawn
Links
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
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水深のある湖沼、
池、海水埋立池などの浄化に役立つ曝気装置およびその
曝気方法に関する。TECHNICAL FIELD The present invention relates to a lake or marsh having a depth of water.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aeration apparatus useful for purification of a pond, a seawater landfill pond, and the like, and an aeration method thereof.
【０００２】[0002]
【従来の技術】従来、前記のような湖沼、池、海水埋立
池などの浄化には、池などの自浄作用に依存する流通式
ラグーンがあるが、これはＢＯＤ負荷を高くできない、
また水深が深くなると底部の嫌気性が強くなり水質が悪
化し易い点などから、酸素を機械的に供給する曝気式ラ
グーンが多く採用されている。2. Description of the Related Art Conventionally, in the purification of lakes, marshes, ponds, seawater reclamation ponds and the like as described above, there are flow-type lagoons that rely on the self-cleaning action of ponds and the like.
In addition, aerating lagoons that mechanically supply oxygen are often used because the deeper the water, the more anaerobic at the bottom and the more likely the water quality is to deteriorate.
【０００３】この場合の曝気方式にによって、池などの
低層部まで池水を完全に混合する完全混合型と、中層部
までは混合するが低層部までは混合しない不完全混合型
がある。完全混合型では、散気攪拌装置を池底に設置し
て空気を供給しながら十分に攪拌を行うため、水深が変
化する海水埋立池などでは散気量の調整に手間がかかる
うえ、攪拌された土砂や汚泥が散気攪拌装置に流入する
ため散気機能が低下するなどの不具合が見られた。[0003] Depending on the aeration method in this case, there are a complete mixing type in which pond water is completely mixed up to a lower portion such as a pond, and an incomplete mixing type in which mixing is performed up to a middle portion but not mixed up to a lower portion. In the complete mixing type, a diffuser stirrer is installed at the bottom of the pond to sufficiently stir while supplying air, so it takes time and effort to adjust the amount of diffused air in seawater landfill ponds where the water depth changes. Problems such as a decrease in the aeration function due to the flow of soil and sludge into the aeration and agitation device were observed.
【０００４】また、不完全混合型は、通常、水面近くに
設けた水車または噴水ポンプによる噴水曝気によって、
空気中の酸素を取り込むようにするものである。このよ
うに、不完全混合型では水面付近の池水が混合されるだ
けであるから、水深の深い池などでは、水面付近の領域
では好気性処理が行われるが、底層部汚泥では嫌気性処
理が行われることはもちろん、底層部汚泥に近い低層部
分も嫌気領域になっていることが多い。このような場合
には、底層部汚泥の嫌気性反応によって発生する悪臭源
ガスは酸化浄化されることなく、水面から大気中に放出
されることになり、環境悪化の問題となるおそれがあっ
た。[0004] In addition, the imperfect mixing type is usually provided with a fountain aeration by a water wheel or a fountain pump provided near the water surface.
This is to take in oxygen in the air. In this way, in the imperfectly mixed type, only pond water near the water surface is mixed, so in deep pond etc., aerobic treatment is performed in the area near the water surface, but anaerobic treatment is performed in bottom layer sludge. Of course, the lower part close to the bottom sludge is often an anaerobic zone. In such a case, the odor source gas generated by the anaerobic reaction of the bottom layer sludge is released to the atmosphere from the water surface without being oxidized and purified, which may cause a problem of environmental degradation. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記の問題
点を解決するためになされたものであり、酸化池、海水
埋立池あるいは自然の湖沼など広域で水深が、例えば３
ｍ以上ある深い水域において、底層部汚泥を攪拌するこ
となく池水を浄化するためのものであり、小規模で、簡
単な構造で対応可能となる曝気装置および曝気方法を提
供する。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a water depth of, for example, 3 in a wide area such as an oxidation pond, a seawater reclamation pond, or a natural lake.
The present invention provides an aeration apparatus and an aeration method for purifying pond water in a deep water area having a depth of at least m without stirring the bottom layer sludge and capable of dealing with a small-scale and simple structure.
【０００６】[0006]
【課題を解決するための手段】上記の問題は、水面に浮
上する浮上手段と、水中に設置される散気手段とからな
り、その散気手段は、前記浮上手段に設置深さを調節可
能に吊設されるとともに、空気を供給するための可撓性
配管が接続されていることを特徴とする本発明の曝気装
置によって解決することができる。SUMMARY OF THE INVENTION The problem described above consists of a levitation means floating on the water surface and an air diffusing means installed in water, the air diffusing means being capable of adjusting the installation depth of the floating means. And a flexible pipe for supplying air is connected to the aeration apparatus of the present invention.
【０００７】また、上記の問題は、請求項１に記載の曝
気装置を用いて、底層部汚泥の上方に設置した散気手段
からその底層部汚泥を攪拌することなく気泡を放出し、
水底近傍の汚水を浄化することを特徴とする本発明の曝
気方法によって解決することができる。さらに、同じく
前記曝気装置を用いて、嫌気性反応が行われる底層部汚
泥の上方に設置した散気手段からその底層部汚泥を攪拌
することなく気泡を放出し、前記底層部汚泥から発生す
る悪臭源ガスを酸化浄化するとともに、水底近傍の汚水
を浄化することを特徴とする本発明の曝気方法によって
解決することができるのである。[0007] Further, the above problem is solved by using the aeration apparatus according to claim 1 to discharge air bubbles without agitating the bottom layer sludge from the aeration means provided above the bottom layer sludge,
The problem can be solved by the aeration method of the present invention, which is characterized by purifying sewage near the water bottom. Further, similarly using the aeration apparatus, air bubbles are released without agitating the bottom-layer sludge from the aeration means provided above the bottom-layer sludge where the anaerobic reaction is performed, and the odor generated from the bottom-layer sludge The problem can be solved by the aeration method of the present invention, which comprises purifying oxidized source gas and purifying sewage near the water bottom.
【０００８】[0008]
【発明の実施の形態】次に、本発明の曝気装置および曝
気方法に係る実施形態について、図１〜３を参照しなが
ら説明する。先ず、本発明の曝気装置について説明す
る。本発明の曝気装置は、例えば海水埋立池などの水面
１０に浮かべられるものであり、フロート部材１１を備
え水面に浮上しているフロート部１と、空気を放出する
散気パイプ２１を取り付けた架台２２からなり水中に沈
められている散気部２を主要構成部とし、この散気部２
は、前記フロート部１に設置深さを調節可能に、鎖など
の吊り下げ部材１２によって、吊設されるとともに、こ
の散気部２の散気パイプ２１には、外部に設けた送風
機、例えば、図３に示す処理施設３内の送風機３１によ
って空気を供給する空気主配管３２から延びる可撓性配
管３３が接続されていることを特徴とする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an aeration apparatus and an aeration method according to the present invention will be described with reference to FIGS. First, the aeration apparatus of the present invention will be described. The aeration apparatus of the present invention floats on a water surface 10 such as a seawater landfill pond, and is provided with a float member 1 having a float part 1 floating on the water surface and a pedestal to which a diffuser pipe 21 for discharging air is attached. The main part of the air diffuser 2, which is composed of an air diffuser 22 and submerged in water,
Is suspended by a suspending member 12 such as a chain so that the installation depth can be adjusted in the float unit 1, and an air blower provided outside the air diffusion pipe 21 of the air diffusion unit 2, for example, 3 is connected to a flexible pipe 33 extending from an air main pipe 32 for supplying air by a blower 31 in the processing facility 3 shown in FIG.
【０００９】さらに、各部について具体的に補足する
と、先ず、前記散気部２は、上面図である図２に示すよ
うに、金属または合成樹脂から構成される架台２２上
に、塩化ビニルなどからなる直径５０〜１００ｍｍのパ
イプで構成される散気パイプ２１が取り付けられてい
る。この散気パイプ２１は、幅１〜２ｍ、長さ３〜５ｍ
程度のループに形成され、散気パイプ２１自体には、５
〜１０ｍｍ程度の空気孔が２００〜５００ｍｍ間隔に多
数個設けてある。そして、この散気部２は、後記の可撓
性配管３３の接続部分を含めて、水中に沈むように重量
が調節されている。なお、この散気部２の４隅には、吊
設用鎖など吊り下げ部材１２を取り付けるための取付具
２３が配置されている。More specifically, as to each part, first, as shown in FIG. 2 which is a top view, the air diffuser 2 is placed on a pedestal 22 made of metal or synthetic resin from vinyl chloride or the like. A diffuser pipe 21 composed of a pipe having a diameter of 50 to 100 mm is attached. This diffuser pipe 21 has a width of 1 to 2 m and a length of 3 to 5 m
The air diffusion pipe 21 itself has 5 loops.
Many air holes of about 10 to 10 mm are provided at intervals of 200 to 500 mm. The weight of the air diffuser 2 is adjusted so as to be submerged in water, including a connection portion of a flexible pipe 33 described later. At the four corners of the air diffuser 2, attachments 23 for attaching the suspension members 12, such as suspension chains, are arranged.
【００１０】そして、この散気部２には、可撓性配管３
３が接続され、前記空気孔から１０〜２０ｍ／ｓ程度の
風速で空気が噴出できるよう設定されている。また、こ
の可撓性配管３３は、後記するようにこの曝気装置の移
動や、散気部２の水深の調節に追随可能にゴム質などあ
る程度柔軟性のある材料から構成されている。さらに、
この可撓性配管３３には、２〜３ｍ間隔にブイ（浮上標
識）３３ａが取付られ、可撓性配管３３自体を浮上させ
ておくとともに、その位置を外部から認識できるように
してある。The air diffuser 2 includes a flexible pipe 3
3 is connected so that air can be ejected from the air hole at a wind speed of about 10 to 20 m / s. The flexible pipe 33 is made of a material having a certain degree of flexibility, such as rubber, so as to follow the movement of the aerator and the adjustment of the water depth of the diffuser 2 as described later. further,
Buoys (floating signs) 33a are attached to the flexible pipe 33 at intervals of 2 to 3 m, so that the flexible pipe 33 itself is floated and its position can be recognized from the outside.
【００１１】また、フロート部１は、金属または合成樹
脂から構成される適宜フレーム部材に適宜個数のフロー
ト部材１１を取り付けたもので、水面１０に浮上してい
るものであればよい。このフロート部材１１としては、
発泡合成樹脂ブロックあるいはドラム缶状の缶体などが
応用できる。そして、その端部に設けた鎖などの吊り下
げ部材１２によって、前記散気部２を所定の設置深さ
に、例えば３〜５ｍの範囲で調節可能に吊設している。
さらに、この曝気装置を浮上状態で所定の場所から浮遊
して移動しないよう固定するための、アンカ１３が備え
られている。Further, the float portion 1 is a member in which an appropriate number of float members 11 are attached to an appropriate frame member made of metal or synthetic resin, and may be any as long as it floats on the water surface 10. As the float member 11,
A foam synthetic resin block or a drum-shaped can can be applied. The air diffuser 2 is suspended at a predetermined installation depth, for example, in a range of 3 to 5 m by a suspension member 12 such as a chain provided at an end thereof.
Further, an anchor 13 is provided for fixing the aeration device so as not to float and move from a predetermined place in a floating state.
【００１２】次に、本発明の曝気方法について説明す
る。本発明の曝気方法は、前記したフロート部１と散気
部２とを備えた曝気装置を用いる曝気方法であり、底層
部汚泥の上方の隔離された水深に設置した散気手段であ
る散気部２からその底層部汚泥を攪拌することなく気泡
を放出し、その散気によるエアリフトと酸素の供給によ
り、水底近傍の汚水を浄化する曝気方法であり、また、
前記の同じ曝気装置の散気部２を嫌気性反応が行われる
底層部汚泥の上方に設置し、その散気部２から前記底層
部汚泥を攪拌することなく気泡を放出し、特に、前記底
層部汚泥から発生する悪臭源ガスを酸化浄化するととも
に、水底近傍の汚水を浄化する曝気方法である。Next, the aeration method of the present invention will be described. The aeration method of the present invention is an aeration method using an aeration device having the above-mentioned float unit 1 and aeration unit 2, and is an aeration unit installed at an isolated water depth above the bottom layer sludge. This is an aeration method in which air bubbles are released from the portion 2 without stirring the bottom layer sludge, and air is lifted by diffusing air and oxygen is supplied to purify sewage near the water bottom.
The diffuser 2 of the same aerator is installed above the bottom sludge where the anaerobic reaction is performed, and bubbles are released from the diffuser 2 without stirring the bottom sludge. This is an aeration method that oxidizes and purifies the odor source gas generated from the sludge and purifies the sewage near the water bottom.
【００１３】図３の海水埋立池に複数の本発明の曝気装
置を配置した事例を示す。本例では、曝気装置ａ、ｂ、
ｃ、ｄ、ｅに接続される可撓性配管３３ａ、ｂ、ｃ、
ｄ、ｅは、それぞれが、堤防沿いに設けられた空気主配
管３２にバルブを介して接続され、地上の管理施設３に
設けられた送風機３１から所要の空気が供給されるよう
構成されている。この曝気装置は、いわばフローティン
グシステムであるので、浄化地域を変更する場合は、ア
ンカ１３を引き上げ、曝気装置全体を適宜手段で曳航す
ればよい。FIG. 3 shows an example in which a plurality of aeration devices of the present invention are arranged in a seawater landfill pond. In this example, aeration devices a, b,
Flexible pipes 33a, b, c connected to c, d, e
Each of d and e is connected via a valve to an air main pipe 32 provided along the embankment, and is configured such that required air is supplied from a blower 31 provided in the management facility 3 on the ground. . Since this aeration apparatus is a floating system, when changing the purification area, the anchor 13 is pulled up and the entire aeration apparatus may be towed by appropriate means.
【００１４】このように配置される本発明の曝気装置で
は、配置場所に応じて可撓性配管３３ａ、ｂ、ｃ、ｄ、
ｅの長さを適宜に選定すればよく、また、散気空気の供
給や水深に応じた供給空気圧は、中間のバルブを地上の
管理施設３から制御するように設定すれば便利なものと
なる。In the aeration apparatus of the present invention arranged as described above, flexible pipes 33a, b, c, d,
The length of e may be appropriately selected, and the supply of the diffused air and the supply air pressure according to the water depth may be convenient if the intermediate valve is set so as to be controlled from the management facility 3 on the ground. .
【００１５】以上説明した本発明の曝気装置および曝気
方法の利点をまとめると、以下の通りである。 （１）天然の河川、湖沼、酸化池および海水埋立池のよ
うに、水深が深く、かつ場所によって変化する水域であ
っても、散気によるエアリフト効果による浄化作用を行
うに際して、散気水深を自由に調節できるので、底部の
堆積汚泥を攪拌することなく、深部の汚水を効果的に浄
化処理することができる。特に、嫌気性反応が行われる
底層部汚泥あから発生する悪臭源ガスを酸化浄化するこ
とができ、環境悪化を防止できる。The advantages of the aeration apparatus and the aeration method of the present invention described above are summarized as follows. (1) Even in natural waters such as natural rivers, lakes and marshes, oxidation ponds, and seawater reclamation ponds, where the water depth is deep and varies depending on the place, when performing the purification action by the air lift effect by air diffusion, Since it can be adjusted freely, it is possible to effectively purify sewage in deep parts without stirring the sludge at the bottom. In particular, it is possible to oxidize and purify the odor source gas generated from the bottom layer sludge in which the anaerobic reaction is performed, thereby preventing environmental degradation.
【００１６】（２）前記水域において、流入してくる土
砂などによって散気装置が埋まることもないので定常的
なメンテナンスが容易である。また、堆積汚泥層の厚み
が大きく、中層部以上が浅くなるとにきは、散気部まで
の鎖などの長さを調節すればよいのは言うまでもない。(2) In the water area, the air diffuser is not buried by the inflow of earth and sand, so that regular maintenance is easy. In addition, when the thickness of the sedimentary sludge layer is large and the middle or higher part is shallower, it is needless to say that the length of the chain or the like to the diffuser part may be adjusted.
【００１７】（３）季節または時期によって水位が変動
して水深が変化する水域であっても、散気装置は一定水
深を維持できるので、水深による酸素移動効率の影響は
ない。また、散気エアの圧力制御系が簡単で済み、設備
費を低く抑えることができる。(3) Even in a water area in which the water level varies depending on the season or season and the water depth changes, the air diffusion device can maintain a constant water depth, so that the oxygen transfer efficiency is not affected by the water depth. Further, the pressure control system for the diffused air can be simplified, and the equipment cost can be reduced.
【００１８】（４）広い水域であっても、必要に応じて
移動させることができ、酸素供給区域を広く設定でき、
空気の供給割合を０．２〜０．４（汚水１ｍ3 当たりの
空気量ｍ3 ／時間）程度にするため、全水域の溶存酸素
濃度を低く抑えることができ、酸素移動効率を向上させ
ることもできる。(4) Even in a wide water area, it can be moved as needed, and a wide oxygen supply area can be set.
Since the air supply ratio is about 0.2 to 0.4 (air volume per m 3 of sewage m 3 / hour), the dissolved oxygen concentration in the whole water area can be kept low, and the oxygen transfer efficiency can be improved. Can also.
【００１９】[0019]
【発明の効果】本発明の曝気装置および曝気方法は、以
上に説明したように構成されているので、特に、水深が
３ｍ以上あるような広い面積の酸化池、海水埋立池ある
いは自然の湖沼などの水域において、比較的簡便な手段
によって水質浄化に寄与でき、良好な環境保全に役立つ
という格別な効果を奏する。よって本発明は従来の問題
点を解消した曝気装置および曝気方法として、その工業
的価値は極めて大なるものがある。As described above, the aeration apparatus and the aeration method of the present invention are constructed as described above. In particular, a wide-area oxidation pond having a water depth of 3 m or more, a seawater reclamation pond, a natural lake, or the like. In this water area, it is possible to contribute to water purification by relatively simple means, and to achieve a special effect of contributing to good environmental conservation. Therefore, the present invention has a very large industrial value as an aeration apparatus and an aeration method which have solved the conventional problems.
【図１】本発明の曝気装置を説明するための要部断面略
図。FIG. 1 is a schematic cross-sectional view of a main part for describing an aeration apparatus of the present invention.
【図２】本発明の散気部の１例を示す上面図。FIG. 2 is a top view showing an example of an air diffuser according to the present invention.
【図３】広水域での本発明の曝気装置の配置を説明する
ための平面略図。１ フロート部、１０ 水面、１１
フロ−ト部材、１２ 吊り下げ部材、１３アンカ、２
散気部、２１ 散気パイプ、２２ 架台、２３ 取付
具、３ 処理施設、３１ 送風機、３２ 空気主配管、
３３ 可撓性配管：３３ａ ブイ。FIG. 3 is a schematic plan view illustrating an arrangement of the aeration apparatus of the present invention in a wide water area. 1 float, 10 water surface, 11
Floating member, 12 Hanging member, 13 anchor, 2
Diffuser, 21 diffuser pipe, 22 gantry, 23 fixture, 3 processing facility, 31 blower, 32 main air pipe,
33 Flexible tubing: 33a buoy.
Claims (3)
れる散気手段とからなり、その散気手段は、前記浮上手
段に設置深さを調節可能に吊設されるとともに、空気を
供給するための可撓性配管が接続されていることを特徴
とする曝気装置。1. A floating means which floats on the surface of a water and an air diffusing means which is installed in the water. The air diffusing means is suspended from the floating means so that the installation depth can be adjusted, and air is diffused. An aeration apparatus characterized in that a flexible pipe for supplying is connected.
部汚泥の上方に設置した散気手段からその底層部汚泥を
攪拌することなく気泡を放出し、水底近傍の汚水を浄化
することを特徴とする曝気方法。2. Using the aeration apparatus according to claim 1, air bubbles are released from the aeration means provided above the bottom layer sludge without stirring the bottom layer sludge, thereby purifying sewage near the water bottom. An aeration method characterized by that:
性反応が行われる底層部汚泥の上方に設置した散気手段
からその底層部汚泥を攪拌することなく気泡を放出し、
前記底層部汚泥から発生する悪臭源ガスを酸化浄化する
とともに、水底近傍の汚水を浄化することを特徴とする
曝気方法。3. Using the aeration apparatus according to claim 1, air bubbles are released from a diffuser provided above the bottom sludge where the anaerobic reaction is performed without stirring the bottom sludge,
An aeration method, comprising: oxidizing and purifying an odor source gas generated from the bottom layer sludge; and purifying sewage near a water bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000082181A JP2001259680A (en) | 2000-03-23 | 2000-03-23 | Aeration device and aeration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000082181A JP2001259680A (en) | 2000-03-23 | 2000-03-23 | Aeration device and aeration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001259680A true JP2001259680A (en) | 2001-09-25 |
Family
ID=18599016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000082181A Withdrawn JP2001259680A (en) | 2000-03-23 | 2000-03-23 | Aeration device and aeration method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001259680A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003155971A (en) * | 2001-11-19 | 2003-05-30 | Hokuriku Regional Development Bureau Ministry Land Infrastructure & Transport | Flowing water and pneumatic energy system |
| JP2004290893A (en) * | 2003-03-27 | 2004-10-21 | Chuden Gijutsu Consultant Kk | Method and apparatus for improving/purifying bottom mud |
| JP2007327235A (en) * | 2006-06-07 | 2007-12-20 | Nepon Inc | Circulating toilet |
| KR100937729B1 (en) * | 2009-08-26 | 2010-01-20 | 임동열 | Cleaner for submarine deposit of whitening event |
| KR100996694B1 (en) | 2010-05-07 | 2010-11-25 | 이순이 | Apparatus assembly for removing the armhful living organism |
| CN107067932A (en) * | 2017-03-23 | 2017-08-18 | 西安建筑科技大学 | The analogue experiment installation of aeration effect under a kind of different hydraulic conditions |
| CN110692586A (en) * | 2019-10-15 | 2020-01-17 | 中国水产科学研究院渔业机械仪器研究所 | Solar energy silt is ploughed and is removed aeration equipment |
| CN114772856A (en) * | 2022-04-27 | 2022-07-22 | 深圳世纪盛源环境科技有限公司 | Sewage treatment system and sewage treatment method using membrane bioreactor |
-
2000
- 2000-03-23 JP JP2000082181A patent/JP2001259680A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003155971A (en) * | 2001-11-19 | 2003-05-30 | Hokuriku Regional Development Bureau Ministry Land Infrastructure & Transport | Flowing water and pneumatic energy system |
| JP2004290893A (en) * | 2003-03-27 | 2004-10-21 | Chuden Gijutsu Consultant Kk | Method and apparatus for improving/purifying bottom mud |
| JP2007327235A (en) * | 2006-06-07 | 2007-12-20 | Nepon Inc | Circulating toilet |
| JP4526511B2 (en) * | 2006-06-07 | 2010-08-18 | ネポン株式会社 | Circulating toilet |
| KR100937729B1 (en) * | 2009-08-26 | 2010-01-20 | 임동열 | Cleaner for submarine deposit of whitening event |
| KR100996694B1 (en) | 2010-05-07 | 2010-11-25 | 이순이 | Apparatus assembly for removing the armhful living organism |
| CN107067932A (en) * | 2017-03-23 | 2017-08-18 | 西安建筑科技大学 | The analogue experiment installation of aeration effect under a kind of different hydraulic conditions |
| CN107067932B (en) * | 2017-03-23 | 2023-07-04 | 西安建筑科技大学 | Simulation experiment device for aeration effect |
| CN110692586A (en) * | 2019-10-15 | 2020-01-17 | 中国水产科学研究院渔业机械仪器研究所 | Solar energy silt is ploughed and is removed aeration equipment |
| CN110692586B (en) * | 2019-10-15 | 2024-04-16 | 中国水产科学研究院渔业机械仪器研究所 | Solar sludge turning mobile aeration device |
| CN114772856A (en) * | 2022-04-27 | 2022-07-22 | 深圳世纪盛源环境科技有限公司 | Sewage treatment system and sewage treatment method using membrane bioreactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20070605 |