JP2002017200A - Water tank for exhibition - Google Patents
Water tank for exhibitionInfo
- Publication number
- JP2002017200A JP2002017200A JP2000202089A JP2000202089A JP2002017200A JP 2002017200 A JP2002017200 A JP 2002017200A JP 2000202089 A JP2000202089 A JP 2000202089A JP 2000202089 A JP2000202089 A JP 2000202089A JP 2002017200 A JP2002017200 A JP 2002017200A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tank
- supply means
- filtration layer
- main body
- 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- Withdrawn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
- Farming Of Fish And Shellfish (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、水族館や水産試験
場あるいはホテルその他サービス施設などにおいて水生
生物を飼育展示する展示水槽に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aquarium for breeding and displaying aquatic organisms in an aquarium, a fisheries test site, a hotel or other service facilities.
【0002】[0002]
【従来の技術】従来の展示水槽では、図3に示すよう
に、水槽(21)の底部に、し尿中のアンモニアを亜硝酸根
および硝酸根に分解する生菌が生息し易いよう、一例と
して粒径2〜4mmの砂利が一面に敷かれて生物濾過層
(22)が形成されている。このため飼育水生生物より***
される汚物および定期的に水生生物に供給される餌の残
餌が生物濾過層表面に溜まる。この蓄積物の除去のため
定期的にダイバーが水中に潜り、観賞に問題ない程度ま
で槽内を清掃している。しかし、このようなダイバーに
よる水中清掃は甚だ面倒である。なお、図3中、生物濾
過層(22)を支える支持層(25)は大きな粒径(一例として
上層は粒径4〜8mm、下層は粒径8〜12mm)の砂
利からなる。支持層(25)内には底部全域に格子状に処理
水供給手段(26)が設けられ、同手段(26)によって供給さ
れる処理水が生物濾過層(22)を上向流で流れる。2. Description of the Related Art In a conventional display tank, as shown in FIG. 3, as an example, at the bottom of the tank (21), live bacteria which decompose ammonia in night soil into nitrite and nitrate are easily inhabited. Gravel with a particle size of 2 to 4 mm is spread over the whole surface and a biological filtration layer
(22) is formed. For this reason, the filth excreted from the breeding aquatic organisms and the residual food of the food periodically supplied to the aquatic organisms accumulate on the surface of the biological filtration layer. In order to remove the accumulation, a diver dives periodically into the water and cleans the inside of the tank to a degree that does not cause any problems in the viewing. However, underwater cleaning by such a diver is extremely troublesome. In FIG. 3, the support layer (25) supporting the biological filtration layer (22) is made of gravel having a large particle size (for example, the upper layer has a particle size of 4 to 8 mm and the lower layer has a particle size of 8 to 12 mm). In the support layer (25), a treated water supply means (26) is provided in a grid pattern over the entire bottom portion, and the treated water supplied by the means (26) flows upward in the biological filtration layer (22).
【0003】このように面倒なダイバーによる水中清掃
を避けるため、図4に示す展示水槽では、生物濾過層表
面に残餌等が溜まらないよう、水槽(21)とは別置のバイ
オフィルター槽(23)を設け、ここで生物濾過層(22)を通
過して来た排水を処理する。生物濾過層(22)は、観賞に
問題ない程度に汚物が排出手段より流れ出るよう、荒目
の砂利で構成されている。汚物はバイオフィルター槽(2
3)内の生物濾過装置(24)に溜まるが、この汚物は槽底部
より逆洗水を流して除去される。In order to avoid such troublesome underwater cleaning by a diver, in the exhibition aquarium shown in FIG. 4, a biofilter tank (separate from the aquarium (21)) is installed so as to prevent remaining food and the like from collecting on the surface of the biological filtration layer. 23) is provided, where the wastewater that has passed through the biological filtration layer (22) is treated. The biological filtration layer (22) is made of rough gravel so that the waste can flow out of the discharging means to the extent that there is no problem in ornamentation. Waste is removed from the bio filter tank (2
Although collected in the biological filtration device (24) in 3), this waste is removed by flowing backwash water from the bottom of the tank.
【0004】しかし、このシステムでは機器が増え、シ
ステムも複雑となって経済性に問題がある。However, in this system, the number of devices increases, the system becomes complicated, and there is a problem in economy.
【0005】[0005]
【発明が解決しようとする課題】本発明は、上記実状に
鑑み、ダイバーが水中に潜り槽内を清掃する必要がな
く、しかも***物や残餌などの浮遊物質を水流効果を利
用して積極的に集捕することができ、別置のバイオフィ
ルター槽を設置する必要がなくて経済的な展示水槽を提
供することを課題とする。DISCLOSURE OF THE INVENTION In view of the above situation, the present invention does not require a diver to dive into water and clean the inside of a tank, and actively uses suspended water such as excrement and residual food by utilizing a water flow effect. It is an object of the present invention to provide a display tank that can be collected and collected economically and does not require a separate biofilter tank.
【0006】[0006]
【課題を解決するための手段】本発明による展示水槽
(1) は、水生生物を飼育展示する槽本体(2) と、槽本体
(2) の底部に設けられ、かつ、水生生物のし尿および残
餌等に由来して発生したアンモニアを生物処理する生物
濾過層(3) と、槽本体頂部に水を供給する補給水供給手
段(4) と、槽本体内の水を頂部よりオーバーフローによ
り排出する上部水排出手段(5) と、排出水を浄化処理し
た処理水を槽本体(2) の飼育展示水域(18)に供給する上
部処理水供給手段(6) と、槽本体の飼育展示水域(18)に
空気を供給する上部空気供給手段(7) とからなる展示水
槽において、槽本体底部近傍に生物濾過層(3) を支える
サポート(8) が設けられ、サポート(8) の下の槽底水域
(17)に処理水を供給する底部処理水供給手段(9) と、槽
底水域(17)に空気を供給する底部空気供給手段(10)と、
生物濾過層上面より生物濾過層およびサポートを貫通し
槽本体底面まで達する少なくとも1つの下部水排出手段
(11)とが設けられてなるものである。An exhibition tank according to the present invention.
(1) The tank body (2) for breeding and displaying aquatic organisms, and the tank body
A biological filtration layer (3) provided at the bottom of (2) and biologically treating ammonia generated from human excreta and residual food, etc .; and a makeup water supply means for supplying water to the top of the tank body. (4), upper water discharge means (5) for discharging water in the tank body from the top by overflow, and treated water purified from the discharged water to the breeding display area (18) in the tank body (2) In the exhibition tank with upper treated water supply means (6) and upper air supply means (7) for supplying air to the breeding display water area (18) of the tank body, a biological filtration layer (3) is provided near the bottom of the tank body. A support (8) is provided to support the bottom of the tank below the support (8)
A bottom treated water supply means (9) for supplying treated water to (17), a bottom air supply means (10) for supplying air to the tank bottom water area (17),
At least one lower water discharge means penetrating the biological filtration layer and the support from the upper surface of the biological filtration layer to the bottom of the tank body
(11) is provided.
【0007】処理水を槽本体(2) の飼育展示水域(18)に
供給する上部処理水供給手段(6) は、飼育展示水域(18)
に旋回流を形成する。The upper treated water supply means (6) for supplying treated water to the breeding display water area (18) of the tank body (2) comprises a breeding display water area (18).
To form a swirling flow.
【0008】[0008]
【発明の実施の形態】つぎに、本発明を図示の実施例に
より具体的に説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention.
【0009】図1において、展示水槽(1) は、水生生物
を飼育展示する槽本体(2) と、槽本体(2) の底部に設け
られ、かつ、水生生物のし尿および残餌等に由来して発
生したアンモニアを生物処理する生物濾過層(3) と、槽
本体頂部に水を供給する補給水供給手段(4) と、槽本体
内の水を頂部よりオーバーフローにより排出する上部水
排出手段(5) と、排出水を浄化処理した処理水を槽本体
(2) の飼育展示水域(18)に供給する上部処理水供給手段
(6) と、槽本体の飼育展示水域(18)に空気を供給する上
部空気供給手段(7) とからなる。この展示水槽におい
て、槽本体底部近傍に生物濾過層(3) を支えるサポート
(8) が設けられ、サポート(8) の下の槽底水域(17)に処
理水を供給する底部処理水供給手段(9) と、槽底水域(1
7)に空気を供給する底部空気供給手段(10)と、生物濾過
層上面より生物濾過層およびサポートを貫通し槽本体底
面まで達する少なくとも1つの下部水排出手段(11)とが
設けられている。In FIG. 1, an exhibition aquarium (1) is provided at the bottom of the aquarium body (2) for breeding and displaying aquatic organisms, and is derived from aquatic organisms excrement and residual food. A biological filtration layer (3) for biologically treating the ammonia generated by the treatment, a makeup water supply means (4) for supplying water to the top of the tank body, and an upper water discharge means for discharging water in the tank body from the top by overflowing (5) and the treated water obtained by purifying the discharged water
Upper treated water supply means for supplying the breeding display area (18) in (2)
(6) and upper air supply means (7) for supplying air to the breeding display water area (18) of the tank body. This exhibition tank supports the biological filtration layer (3) near the bottom of the tank body.
(8), a bottom treated water supply means (9) for supplying treated water to the tank bottom water area (17) below the support (8), and a tank bottom water area (1).
A bottom air supply means (10) for supplying air to 7) and at least one lower water discharge means (11) which penetrates the biological filtration layer and the support from the biological filtration layer upper surface and reaches the tank body bottom surface are provided. .
【0010】生物濾過層(3) は、格子状のサポート(8)
上にプラスチック製ネット(19)を介して形成された支持
床(12)とその上に設けられた濾過床(13)とからなる。支
持床(12)は、例えば8〜12mmの砂利が厚さ約100
mmで敷き詰められた下部砂利層と、例えば4〜8mm
の砂利が厚さ約100mmで敷き詰められた上部砂利層
とからなる。濾過床(13)は、例えば粒径2〜4mmの砂
利が厚さ約300mmで全面に敷かれたものである。[0010] The biological filtration layer (3) comprises a grid-like support (8).
It comprises a support bed (12) formed thereon via a plastic net (19) and a filtration bed (13) provided thereon. The supporting floor (12) is made of, for example, a gravel of 8 to 12 mm having a thickness of about 100 mm.
mm and lower gravel layer, for example, 4 to 8 mm
And an upper gravel layer spread about 100 mm in thickness. The filtration bed (13) is made of, for example, gravel having a particle size of 2 to 4 mm and having a thickness of about 300 mm and is spread over the entire surface.
【0011】上部水排出手段(5) は、展示水槽(1) の一
側頂部に設けられた排水凹所(15)と、ここからオーバー
フロー排水を系外へ導く排水管とからなる。The upper water discharging means (5) comprises a drainage recess (15) provided at the top of one side of the display water tank (1), and a drainage pipe for guiding overflow wastewater out of the recess.
【0012】上部処理水供給手段(6) は、図2に示すよ
うに、飼育展示水域(18)の四隅にそれぞれ垂直に配され
た給水管(14)から構成されており、各給水管(14)はその
右側の側壁に沿う方向に向く複数のノズルを有する。こ
れら給水管(14)からのノズル水噴射により飼育展示水域
(18)に旋回流が形成される。As shown in FIG. 2, the upper treated water supply means (6) is composed of water supply pipes (14) vertically arranged at the four corners of the breeding display water area (18). 14) has a plurality of nozzles oriented in a direction along the right side wall. Breeding display water area by nozzle water injection from these water supply pipes (14)
A swirling flow is formed at (18).
【0013】底部処理水供給手段(9) は、主としてヘッ
ダー配管と、多数のノズルを有する複数本の分岐状給水
管とから構成されている。The bottom treated water supply means (9) mainly comprises a header pipe and a plurality of branched water supply pipes having a number of nozzles.
【0014】底部空気供給手段(10)は、槽底水域(17)全
域に格子状に配され、かつ多数の上向きノズルを有する
給気管から構成されている。The bottom air supply means (10) is arranged in a grid pattern over the entire area of the tank bottom water area (17) and is constituted by an air supply pipe having a number of upward nozzles.
【0015】下部水排出手段(11)は、槽本体(2) の底部
に、生物濾過層上面より生物濾過層およびサポートを貫
通し槽本体底面まで達するように垂直に配設された円筒
からなり、その上面には水生生物が入り込まないように
複数の押さえ石(16)が載せられている。The lower water discharging means (11) is formed of a cylinder vertically arranged on the bottom of the tank body (2) so as to penetrate the biological filtration layer and the support from the upper surface of the biological filtration layer and reach the bottom of the tank body. On its upper surface, a plurality of holding stones (16) are placed so that aquatic organisms do not enter.
【0016】上記構成の展示水槽(1) において、処理水
は、その一部は底部処理水供給手段(9) により槽底水域
(17)へ、残余は上部処理水供給手段(6) により飼育展示
水域(18)へそれぞれ供給される。底部処理水供給手段
(9) より供給された処理水は、上向流として生物濾過層
(3) を通過し、通過中に処理水中の未処理のアンモニア
および亜硝酸根が亜硝酸根および硝酸根に分解され、通
過後は飼育展示水域(18)内を上向流として循環し、上部
処理水供給手段(6) からの供給水と混合される。飼育展
示水域(18)内の水は、一部は展示水槽(1) の排水凹所(1
5)からオーバーフローして上部水排出手段(5) より、残
余は下部水排出手段(11)よりそれぞれ系外へ排出され
る。飼育展示水域(18)内の水生生物および生物濾過層
(3) に生息する生菌に必要な酸素は、上部空気供給手段
(7) および底部空気供給手段(10)より定期的に飼育展示
水域(18)および槽底水域(17)にそれぞれ供給される。In the display water tank (1) having the above structure, a part of the treated water is supplied to the tank bottom water area by the bottom treated water supply means (9).
The remaining water is supplied to the breeding display water area (18) by the upper treated water supply means (6). Bottom treated water supply means
(9) The treated water supplied from the biological filtration
(3), untreated ammonia and nitrite in the treated water are decomposed into nitrite and nitrate during passage, and after passing, circulate as upward flow in the breeding display water area (18), It is mixed with the supply water from the upper treated water supply means (6). Part of the water in the breeding display water area (18) is the drainage recess (1) in the display tank (1).
After overflowing from 5), the remaining water is discharged from the upper water discharging means (5), and the remainder is discharged from the lower water discharging means (11). Aquatic organisms and biological filtration layer in the breeding display area (18)
(3) Oxygen required for living bacteria inhabiting the upper air supply means
(7) and the bottom air supply means (10) are periodically supplied to the breeding display water area (18) and the tank bottom water area (17), respectively.
【0017】水生生物の給餌は定期的に飼育展示水域(1
8)上部よりなされ、場合によっては観賞用としてダイバ
ーによって水中でなされる。餌の大半は水生生物の体内
に入るが、残餌は生物濾過層(3) の表面に堆積する。ま
た水生生物の***物の一部も生物濾過層(3) の表面に堆
積する。Feeding of aquatic organisms is regularly carried out in the breeding exhibition area (1
8) Made from the top, and in some cases underwater by divers for ornamental use. Most of the food enters the body of aquatic organisms, but the remaining food is deposited on the surface of the biological filtration layer (3). Part of the excretion of aquatic organisms also accumulates on the surface of the biological filtration layer (3).
【0018】堆積した残餌、***物等は、例えば夜間の
観客のいない時に、上部処理水供給手段(6) を閉じ、一
時的に全ての処理水を底部処理水供給手段(9) に流して
その上向流の流速を増加させ、また上部空気供給手段
(7) を閉じて、底部空気供給手段(10)に多量の空気を流
し、堆積した***物を上昇流で浮かせ、展示水槽(1) の
排水凹所(15)からオーバーフローさせて上部水排出手段
(5) より排出する。The accumulated residual food, excrement, etc., close the upper treated water supply means (6) and temporarily flow all the treated water to the bottom treated water supply means (9) when there is no nighttime audience. To increase the upward flow velocity and
(7) is closed and a large amount of air is flowed into the bottom air supply means (10) to float the accumulated excreta in an upflow, and overflow from the drainage recess (15) of the exhibition tank (1) to drain the top water. means
(5) Discharge from
【0019】展示水槽(1) 内の懸濁物は、処理水供給手
段(6) によって形成される旋回流により槽内をゆっくり
旋回させられ、旋回流効果により中央に集められ、下部
水排出手段(11)に吸い込まれる。また、比較的比重の小
さい物は、この旋回流効果により展示水槽(1) の排水凹
所(15)へ早く移動させられ、ここからオーバーフローさ
せて上部水排出手段(5) より排出される。The suspended matter in the display water tank (1) is slowly swirled in the tank by the swirling flow formed by the treated water supply means (6), is collected at the center by the swirling flow effect, and is discharged to the lower water discharging means. Sucked in (11). Objects having a relatively small specific gravity are quickly moved to the drainage recess (15) of the exhibition tank (1) by this swirling flow effect, and overflow therefrom to be discharged from the upper water discharge means (5).
【0020】[0020]
【発明の効果】本発明は、上記のような構成によりつぎ
の効果を奏する。According to the present invention, the following effects can be obtained by the above configuration.
【0021】1)空気の上昇力および処理水の上昇力を
利用し、生物濾過層(3) 表面に堆積した残餌、***物等
を自動的に除去することができるので、ダイバーが定期
的に水中に潜り槽内を清掃するという煩雑さがなくな
り、メンテナンスが容易となる。1) By utilizing the rising power of air and the rising power of treated water, it is possible to automatically remove residual food, excrement, and the like deposited on the surface of the biological filtration layer (3). This eliminates the trouble of diving underwater and cleaning the inside of the tank, thereby facilitating maintenance.
【0022】2)バイオフィルター槽等の機器設置の必
要がなく経済的であり、かつシステムがシンプルとな
る。2) It is economical because there is no need to install equipment such as a biofilter tank, and the system is simple.
【0023】3)底部処理水供給手段(9) によりサポー
ト(8) の下の槽底水域(17)に供給された処理水は、生物
濾過層(3) を通過し、通過中に未処理のアンモニアが分
解されるので、飼育展示水域(18)内の水は水生生物の飼
育用および観賞用に適したものとなされる。3) The treated water supplied to the tank bottom water area (17) below the support (8) by the bottom treated water supply means (9) passes through the biological filtration layer (3) and is not treated during the passage. Since the ammonia is decomposed, the water in the breeding display water area (18) is made suitable for breeding and ornamental aquatic organisms.
【0024】4)展示水槽(1) 内の懸濁物は、処理水供
給手段(6) によって形成される旋回流により中央に集め
られ、下部水排出手段(11)に吸い込まれ、比較的比重の
小さい物は、排水凹所(15)へ早く移動させられ、ここか
ら排出されるので、展示水槽(1) 内の水の循環回数を低
減できて動力費の低減が達成できる上に、水の透明度を
飛躍的に向上することができる。4) The suspended matter in the display water tank (1) is collected at the center by the swirling flow formed by the treated water supply means (6), is sucked into the lower water discharge means (11), and has a relatively specific gravity. Objects with a small size are quickly moved to the drainage recess (15) and discharged therefrom, so that the number of circulations of water in the exhibition tank (1) can be reduced and power costs can be reduced. Can be dramatically improved.
【図1】本発明の実施例を示す展示水槽の垂直断面図で
ある。FIG. 1 is a vertical sectional view of an exhibition tank showing an embodiment of the present invention.
【図2】図1の水槽の水平断面図である。FIG. 2 is a horizontal sectional view of the water tank of FIG.
【図3】従来例を示す展示水槽の垂直断面図である。FIG. 3 is a vertical sectional view of a display tank showing a conventional example.
【図4】従来例を示す展示水槽の垂直断面図である。FIG. 4 is a vertical sectional view of a display tank showing a conventional example.
(1) :飼育展示水槽 (2) :槽本体 (3) :生物濾過層 (4) :補給水供給手段 (5) :上部水排出手段 (6) :上部処理水供給手段 (7) :上部空気供給手段 (8) :サポート (9) :底部処理水供給手段 (10):底部空気供給手段 (11):下部水排出手段 (17):槽底水域 (18):飼育展示水域 (1): Breeding display tank (2): Tank body (3): Biological filtration layer (4): Supply water supply means (5): Upper water discharge means (6): Upper treated water supply means (7): Upper Air supply means (8): Support (9): Bottom treated water supply means (10): Bottom air supply means (11): Lower water discharge means (17): Tank bottom water area (18): Rearing display water area
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長尾 修治 大阪市住之江区南港北1丁目7番89号 日 立造船株式会社内 (72)発明者 小川 強 大阪市住之江区南港北1丁目7番89号 日 立造船株式会社内 Fターム(参考) 2B104 CA03 CA04 CB23 CB30 EA01 EB04 EB05 ED02 ED06 ED15 ED16 ED19 EE05 4D003 AA01 AB02 AB08 BA00 DA04 DA15 DA30 EA22 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuji Nagao 1-7-89 Minami Kohoku, Suminoe-ku, Osaka-shi Inside Tachibashi Shipbuilding Co., Ltd. (72) Inventor Tsuyoshi Ogawa 1- 7-89, Minami Kohoku, Suminoe-ku, Osaka-shi No. Date T-Shipbuilding Co., Ltd. F-term (reference) 2B104 CA03 CA04 CB23 CB30 EA01 EB04 EB05 ED02 ED06 ED15 ED16 ED19 EE05 4D003 AA01 AB02 AB08 BA00 DA04 DA15 DA30 EA22
Claims (2)
よび残餌等に由来して発生したアンモニアを生物処理す
る生物濾過層(3) と、 槽本体頂部に水を供給する補給水供給手段(4) と、 槽本体内の水を頂部よりオーバーフローにより排出する
上部水排出手段(5) と、 排出水を浄化処理した処理水を槽本体(2) の飼育展示水
域(18)に供給する上部処理水供給手段(6) と、 槽本体の飼育展示水域(18)に空気を供給する上部空気供
給手段(7) とからなる展示水槽において、 槽本体底部近傍に生物濾過層(3) を支えるサポート(8)
が設けられ、サポート(8) の下の槽底水域(17)に処理水
を供給する底部処理水供給手段(9) と、槽底水域(17)に
空気を供給する底部空気供給手段(10)と、生物濾過層上
面より生物濾過層およびサポートを貫通し槽本体底面ま
で達する少なくとも1つの下部水排出手段(11)とが設け
られてなることを特徴とする展示水槽。1. A tank body (2) for breeding and displaying aquatic organisms, and provided at the bottom of the tank body (2) for biologically treating ammonia generated from the excrement and excrement of aquatic organisms. Biological filtration layer (3), replenishment water supply means (4) for supplying water to the top of the tank body, upper water discharge means (5) for discharging water in the tank body from the top by overflow, and purification of discharged water Upper treated water supply means (6) for supplying treated water to the breeding display area (18) of the tank body (2), and upper air supply means (7) for supplying air to the breeding display area (18) of the tank body ), A support for supporting the biological filtration layer (3) near the bottom of the tank body (8)
A bottom treated water supply means (9) for supplying treated water to the tank bottom water area (17) below the support (8), and a bottom air supply means (10) for supplying air to the tank bottom water area (17). ) And at least one lower water discharge means (11) penetrating the biological filtration layer and the support from the upper surface of the biological filtration layer and reaching the bottom of the tank main body.
に供給する上部処理水供給手段(6) が飼育展示水域(18)
に旋回流を形成する、請求項1記載の展示水槽。[2] The treated water is bred and displayed in the tank body (2).
The upper treated water supply means (6) to supply to the breeding display area (18)
The display tank according to claim 1, wherein a swirling flow is formed in the tank.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2000202089A JP2002017200A (en) | 2000-07-04 | 2000-07-04 | Water tank for exhibition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000202089A JP2002017200A (en) | 2000-07-04 | 2000-07-04 | Water tank for exhibition |
Publications (1)
Publication Number | Publication Date |
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JP2002017200A true JP2002017200A (en) | 2002-01-22 |
Family
ID=18699664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000202089A Withdrawn JP2002017200A (en) | 2000-07-04 | 2000-07-04 | Water tank for exhibition |
Country Status (1)
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JP (1) | JP2002017200A (en) |
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2000
- 2000-07-04 JP JP2000202089A patent/JP2002017200A/en not_active Withdrawn
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2006223271A (en) * | 2005-02-21 | 2006-08-31 | Univ Of Miyazaki | Rearing water tank for fishes and method for removing sludge in rearing water tank or the like |
JP4686706B2 (en) * | 2005-02-21 | 2011-05-25 | 国立大学法人 宮崎大学 | Sludge removal method for fish rearing tank and rearing tank |
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JP2010011765A (en) * | 2008-07-02 | 2010-01-21 | Yanmar Co Ltd | System for culturing fish or shellfish and method for culturing fish or shellfish |
JP2010011768A (en) * | 2008-07-02 | 2010-01-21 | Yanmar Co Ltd | System for culturing fish or shellfish |
JP2010011766A (en) * | 2008-07-02 | 2010-01-21 | Yanmar Co Ltd | System for culturing fish or shellfish |
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