JPH0634992B2 - Water purification equipment - Google Patents
Water purification equipmentInfo
- Publication number
- JPH0634992B2 JPH0634992B2 JP33349789A JP33349789A JPH0634992B2 JP H0634992 B2 JPH0634992 B2 JP H0634992B2 JP 33349789 A JP33349789 A JP 33349789A JP 33349789 A JP33349789 A JP 33349789A JP H0634992 B2 JPH0634992 B2 JP H0634992B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- septic tank
- gravel
- tide
- water area
- 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 - Lifetime
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
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、内湾、水辺や河川等の水質汚濁を防止するた
めの水域の浄化装置に関する。Description: TECHNICAL FIELD The present invention relates to a water purification apparatus for preventing water pollution in an inner bay, a waterfront, a river, or the like.
［従来の技術］ 従来から、内湾におけるウォータフロントの護岸構造物
と組み合わされて、また水辺施設（マリーナ）の一部と
してあるいは干満河川のテラス護岸に組み込まれた浄化
護岸として、浄化装置が用いられており、この浄化装置
は、ジャリ等の礫を用いて対象水を礫間接触させること
により、水質の浄化を行っている。[Prior Art] Conventionally, a purifying device has been used in combination with a waterfront revetment structure in an inner bay, as a part of a waterfront facility (marina), or as a reclaiming revetment built into a terrace revetment of a tidal river. This purifier purifies the water quality by bringing the target water into contact with the gravel using gravel such as jelly.
例えば、テラス護岸に適用された浄化護岸は、コンクリ
ート製のテラスの下側に礫を収容した浄化槽を配設して
おり、この浄化槽内にポンプ等によって海水、河川水等
の対象水を流入することにより、水域の浄化が行われて
いる。For example, a purification revetment applied to a terrace revetment has a septic tank containing gravel below the concrete terrace, and the target water such as seawater or river water flows into this septic tank by a pump or the like. As a result, the water area is being purified.
［発明が解決しようとする課題］ しかしながら、従来の水域の浄化装置では、対象水を取
水して浄化槽に導くために、ポンプ等の取水動力設備が
必要であり、特に内湾や都市河川等の護岸では長距離に
わたって設けられるので、浄化槽に導くための取水動力
設備にも多大のコストがかかるという問題があった。[Problems to be Solved by the Invention] However, in the conventional water purification apparatus, a water intake power facility such as a pump is necessary in order to take in the target water and guide it to the septic tank. Since it is installed over a long distance, there is a problem that the water intake power equipment for leading to the septic tank also requires a large cost.
本発明は上記問題点に鑑みてなされたものであり、その
目的は、ポンプ等の取水動力設備を付設することなしに
取水を容易に行うことができ、しかも十分な浄化時間を
確保でき、スムーズな排水を可能にする水域の浄化装置
を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to easily carry out water intake without attaching a water intake power facility such as a pump, and also to ensure a sufficient purification time, and to ensure smooth operation. It is to provide a purifying device for a water area that enables efficient drainage.
［課題を解決するための手段］ 上記目的を達成するために、第１請求項に係る水域の浄
化装置は、水域に設置される浄化槽内部に礫を収容し、
礫間接触により浄化作用を行う水域の浄化装置におい
て、 前記浄化槽が設置される水域を静穏水域とする消波構造
体を設け、 前記浄化槽は、前記静穏水域に開口する取水口を、満潮
時の水位よりも下方でかつ干潮時の水位よりも上方に設
け、前記静穏水域に開口する排水口を、干潮時の水位よ
りも下方に設け、潮位差を利用して浄化槽に対する取水
及び排水を行うことを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the water purification apparatus according to the first aspect of the invention contains gravel inside a septic tank installed in the water,
In a purifier for a water area that performs a purifying action by contact between gravel, a wave-dissipating structure that makes the water area in which the septic tank is installed a quiet water area is provided, and the septic tank is an intake opening to the quiet water area at high tide. Provide below the water level and above the water level during low tide, and provide a drainage port that opens to the quiet water area below the water level during low tide, and use the difference in tide level to perform water intake and drainage to the septic tank. Is characterized by.
また、第２請求項に係る発明は、上記浄化槽の上方に歩
道用天板が設けられ、この歩道用天板は前記消波構造体
によって支持されることを特徴とする。The invention according to the second aspect is characterized in that a sidewalk top plate is provided above the septic tank, and the sidewalk top plate is supported by the wave-dissipating structure.
更に、第３請求項に係る発明は、上記浄化槽の底部側に
は酸素を含む気体を噴出する散気装置を設けたことを特
徴とする。Further, the invention according to claim 3 is characterized in that an air diffuser for ejecting a gas containing oxygen is provided on the bottom side of the septic tank.
第４請求項に係わる発明は、排水口に逆止弁を設けたこ
とを特徴とする。The invention according to claim 4 is characterized in that a check valve is provided at the drain port.
［作 用］ 上記第１請求項の発明によれば、満潮時に浄化槽に対象
水が取水口から流入することにより取水が自然に行わ
れ、この取水された対象水は満潮時から干潮時にかけて
浄化槽内の礫間を流れることになり、この礫間接触によ
り水の浄化作用が行われる。従って、対象水の取水は自
然に起こる潮の満ち引きによって行われることにより、
ポンプ等の取水動力設備は不必要となる。[Operation] According to the first aspect of the invention, water is naturally taken in by the target water flowing into the septic tank from the intake port during high tide, and the taken target water is a septic tank from high tide to low tide. It flows between the gravel inside, and the water purification action is performed by the contact between the gravel. Therefore, the intake of the target water is performed by the ebb and flow of the tide that occurs naturally,
Water intake equipment such as pumps is unnecessary.
しかも、この浄化槽は、消波構造体によって波が静めら
れて形成される静穏水域内に設置されている。従って、
取水口から流入する水に波による圧力がかからないの
で、浄化槽内の礫間を流れる水は満潮から干潮に至るま
での時間をかけて十分に浄化される。また、排水口から
流出する水にも外側から波による圧力がかからないので
スムーズな排水が可能になる。Moreover, this septic tank is installed in a calm water area where waves are calmed by the wave-dissipating structure. Therefore,
Since the pressure of waves is not applied to the water flowing from the intake, the water flowing between the gravel in the septic tank is sufficiently purified over the time from high tide to low tide. In addition, since the pressure of waves from outside is not applied to the water flowing out from the drainage port, smooth drainage becomes possible.
また、第２請求項の発明によれば、浄化槽の上方に歩道
用天板が設けられているので、この上面を歩道として利
用することができ、この歩道用天板は消波構造体によっ
て支持されるので、別に支持部材を設ける必要がない。According to the second aspect of the invention, since the sidewalk top plate is provided above the septic tank, this upper surface can be used as a sidewalk, and the sidewalk top plate is supported by the wave-eliminating structure. Therefore, it is not necessary to separately provide a supporting member.
更に、第３請求項の発明によれば、散気装置により処理
水を溶存酸素が高い好気性に保つことができ、腐敗分解
を起こすことを良好に防止することができる。Further, according to the invention of the third aspect, the treated water can be kept aerobic with high dissolved oxygen by the air diffuser, and it is possible to favorably prevent the decomposition by decomposition.
第４請求項に係わる発明によれば、浄化槽内にて逆流す
ることがないので、排水を確実に行なうことができる。According to the invention of the fourth aspect, since there is no reverse flow in the septic tank, drainage can be reliably performed.
［実施例］ 以下、本発明の実施例について図面を参照しながら具体
的に説明する。[Examples] Examples of the present invention will be specifically described below with reference to the drawings.
第１図には、第１実施例としてテラス護岸に適用された
水域の浄化装置の構成が示されており、海や河川等の水
域１０の岸に付設された護岸１２には、コンクリート等
で形成されたテラス護岸１４が設けられ、このテラス護
岸１４の上面は歩道などとして利用されている。FIG. 1 shows the structure of a water purification apparatus applied to a terrace revetment as a first embodiment, and the revetment 12 attached to the shore of the water body 10 such as the sea or river is made of concrete or the like. The formed terrace revetment 14 is provided, and the upper surface of the terrace revetment 14 is used as a sidewalk or the like.
このテラス護岸１４は、テラス護岸１４の下部に所定の
空間を形成するようにして、実施例では支柱１６により
支持されており、この支柱１６は消波構造とされ、波の
荒い海岸でも波を静めるようになっている。もちろん、
上記支柱１６の代わりに孔等が開けられた壁やその他の
消波機能を有する支持構造を用いて、テラス護岸１４を
支持してもよい。The terrace revetment 14 is supported by a pillar 16 in the embodiment so as to form a predetermined space under the terrace revetment 14, and the pillar 16 has a wave-dissipating structure so that waves can be generated even on a rough coast. It is supposed to calm down. of course,
The terrace revetment 14 may be supported by using a wall having holes or the like instead of the pillar 16 or another supporting structure having a wave-dissipating function.
そして、支柱１６によって波が静められた静穏水域に
は、浄化槽１８が設けられており、この浄化槽１８の上
部は複数の孔が開けられた取水口１８ａとなり、底部に
は水域１０側に排水口１８ｂが形成されている。この排
水口１８ｂには、排水のみを許容し、外からの水の流入
を防止する逆止弁１９が設けられている。また、浄化槽
１８内には水質の浄化を行うジャリ等の礫２０が収納さ
れており、この礫２０はネット状袋２２によりパック詰
めされている。Then, a septic tank 18 is provided in the still water area where the waves have been calmed by the pillars 16. The septic tank 18 has an upper part serving as an intake port 18a having a plurality of holes, and a bottom part having a drainage port on the water area 10 side. 18b is formed. The drain port 18b is provided with a check valve 19 which allows only drainage and prevents inflow of water from the outside. In the septic tank 18, gravel 20 such as jar for purifying water quality is stored, and the gravel 20 is packed in a net-shaped bag 22.
上記浄化槽１８での浄化は、集合体としての礫２０の隙
間に対象水を通過させ、礫間接触により行われるが、目
詰まりによる腐敗や嫌気状態が進むと、浄化効率が低下
するという問題があり、従来ではこの状態に対して迅速
な対応ができず、礫２０を取り換えることも容易ではな
かった。しかし、本発明では礫２０をネット状袋２２に
よりパック詰めしているので、取換えが容易となり、作
業の効率化を図ることができる。Purification in the septic tank 18 is performed by passing the target water through the gaps of the gravel 20 as an aggregate and contacting with the gravel. However, there is a problem that the purification efficiency decreases when the rotting or anaerobic state due to clogging progresses. However, conventionally, it is not possible to quickly respond to this state, and it is not easy to replace the gravel 20. However, in the present invention, since the gravel 20 is packed in the net-shaped bag 22, it is easy to replace the gravel 20 and the work efficiency can be improved.
そして、上記のような浄化槽１８の取水口１８ａは、図
示１００の満潮時の水位（H.W.L）よりも下方で、かつ
図示１０１の干潮時の水位（L.W.L）よりも上方に設け
られており、このような構成とすることにより、満潮時
に所定の水量が浄化槽１８に自然に取水される。一方、
排水口１８ｂは干潮時の水位（L.W.L）よりも下方に設
けられているので、前記取水口１８ａより取水された水
は、干潮時への移向と共に、浄化槽１８の内外の水位差
を利用して、礫２０を通して前記排水口１８ｂより自然
に排水される。The water intake 18a of the septic tank 18 as described above is provided below the water level (HWL) at high tide of 100 in the figure and above the water level (LWL) at low tide of 101 in the figure. With such a configuration, a predetermined amount of water is naturally taken into the septic tank 18 at high tide. on the other hand,
Since the drainage port 18b is provided below the water level (LWL) at low tide, the water taken in from the intake port 18a uses the difference in water level between the inside and outside of the septic tank together with the shift to low tide. Then, it is naturally drained from the drain port 18b through the gravel 20.
第３図には、処理水量の説明図が示されており、浄化槽
１８の横幅をＡ、取水口１８ａの下端から干潮時の水位
１０１までの長さをＬ、干満の時間をｔとすると、奥行
１ｍ当りの最大滞留時間ＨＲＴは、 となり、従って処理水量Ｖは、 Ｖ＝Ａ・Ｌ×１．０／ｔ （ｍ3／ｈ） となる。FIG. 3 shows an explanatory diagram of the treated water amount, where the width of the septic tank 18 is A, the length from the lower end of the intake port 18a to the water level 101 at low tide is L, and the time of ebb and flow is t, The maximum residence time HRT per 1 m depth is Therefore, the treated water amount V is V = A · L × 1.0 / t (m 3 / h).
すなわち、この処理水量Ｖが干満の間のｔ時間で礫間接
触して浄化されることになる。ここで、実際の干満時間
は約６時間であり、浄化槽１８内の停留時間としては十
分の時間であり、これによってＢＯＤ（生物化学的酸素
要求量），ＳＳ（懸濁物質），ＮＨ４−Ｎの値を減らし
て対象水を良好に浄化することができる。例えば、河川
でＢＯＤについて行った実験によれば、滞留時間４時間
でＢＯＤが７５％改善された。That is, the treated water amount V is contacted with the gravel and purified for t hours during the ebb and flow. Here, the actual tidal time is about 6 hours, which is a sufficient time for staying in the septic tank 18, whereby BOD (biochemical oxygen demand), SS (suspended substance), and NH 4 − The value of N can be reduced and the target water can be satisfactorily purified. For example, experiments conducted on BOD in rivers showed a 75% improvement in BOD at a residence time of 4 hours.
また、前述したように、この浄化槽１８は、消波構造体
としての支柱１６によって波が静められた静穏水域内に
設置されている。従って、取水口１８ａから流入する水
に波による圧がかからないので、浄化槽１８内の礫２０
間を流れる水は満潮から干潮に至るまでの時間をかけて
十分に浄化され、前述した理論上の値に極めて近い浄化
時間を得ることができる。また、排水口１８ｂから流出
する水にも外側から波による圧力がかからないのでスム
ーズな排水が可能になる。In addition, as described above, the septic tank 18 is installed in the calm water area where the waves are calmed by the pillars 16 as the wave-dissipating structure. Therefore, since the pressure of waves is not applied to the water flowing in from the intake port 18a, the gravel 20 in the septic tank 18
The water flowing through the space is sufficiently purified over the time from high tide to low tide, and a purification time extremely close to the theoretical value described above can be obtained. In addition, since the pressure of the waves is not applied to the water flowing out from the drainage port 18b from the outside, smooth drainage is possible.
このように、本発明は潮位差を利用して浄化槽１８への
取水及び排水を行っており、潮位差のある水域であれ
ば、海域に限らず河川そして海とつながっている潮など
の水質浄化に適用することができる。In this manner, the present invention uses the tide difference to perform water intake and drainage to the septic tank 18, and as long as the water area has a tide difference, it is not limited to the sea area, and water purification such as tides connected to rivers and the sea. Can be applied to.
特に、近年汚染が激しくて水を浄化する必要性の高い内
湾は、船舶の往航が頻繁に行われて波が比較的に大きい
水域であるが、本発明は波の影響を受けずに水を浄化で
きる点で有利なものである。In particular, the inner bay, which has been highly polluted in recent years and has a high need to purify water, is an area of water in which waves are relatively large due to frequent outbound movements of ships, but the present invention provides water purification without being affected by waves. It is advantageous in that it can be purified.
次に、桟橋に適用した第２実施例の浄化装置を第２図に
基づいて説明する。Next, the purifying apparatus of the second embodiment applied to the jetty will be described with reference to FIG.
第２図において、桟橋２４は消波構造に形成された支柱
２６により両側で支えられており、桟橋２４の下部の空
間に礫２０が収容された浄化槽１１８が設けられる。こ
の浄化槽１１８内には、上部に取水口１１８ａ、底部に
は両側に排水口１１８ｂが形成され、この排水口１１８
ｂには逆止弁１１９が設けられている。この排水口１１
８ｂのすぐ上には孔の開いた支持板２８（網部材でもよ
い）が設けられ、礫２０はこの支持板２８によって支持
されることにより浄化槽１１８内に収納されている。そ
して、浄化槽１１８の底部には散気装置（管）３０が配
設されており、第２実施例では、礫間を常に好気状態に
保てる構造とされている。In FIG. 2, the pier 24 is supported on both sides by columns 26 formed in a wave-dissipating structure, and a septic tank 118 accommodating the gravel 20 is provided in a space below the pier 24. In the septic tank 118, a water intake port 118a is formed at the top and drainage ports 118b are formed at both sides at the bottom part.
A check valve 119 is provided at b. This drainage port 11
A support plate 28 (may be a net member) having a hole is provided immediately above 8b, and the gravel 20 is accommodated in the septic tank 118 by being supported by the support plate 28. An air diffuser (pipe) 30 is provided at the bottom of the septic tank 118, and in the second embodiment, the structure is such that the space between the gravel can be kept aerobic.
上述したように、礫間接触により浄化を行う場合には、
礫間の目詰まりによる腐敗や嫌気状態を防止することが
好ましく、第２実施例では散気装置３０により酸素を供
給して好気状態にして浄化効率を高めるようにしてい
る。すなわち、礫間の汚濁が進み、溶存酸素（ＤＯ）が
低い嫌気状態の場合には、散気装置３０により曝気（エ
アレーション）して好気状態とすることにより、礫間で
の腐敗分解の発生を防止できる。この散気装置３０は常
時使用してもよいし、必要に応じて使用するようにして
もよい。As described above, when cleaning is performed by contact between gravel,
It is preferable to prevent spoilage and anaerobic conditions due to clogging between the gravel. In the second embodiment, oxygen is supplied by the air diffuser 30 to make the system aerobic and improve the purification efficiency. That is, in the anaerobic state in which the dissolved oxygen (DO) is low due to the progress of the pollution between the gravel, aeration (aeration) is performed by the air diffuser 30 to make it into an aerobic state, so that the decomposition of rot between the gravel occurs. Can be prevented. The air diffuser 30 may be used all the time or may be used as needed.
この場合、散気装置３０の使用は比較的静穏な状態で行
われることが好ましい。すなわち、海岸のように波があ
る場合、河川のように水の流れがある場合には、エアレ
ーションにより酸素が溶存する前に気泡のまま排水口１
１８ｂから流れてしまうという問題があり、溶存酸素量
を高めるためには静穏な状態とする必要がある。この意
味も含めて、上記支柱２６には消波構造が適用されてお
り、これによってエアレーションの効果を高めるように
なっている。In this case, the air diffuser 30 is preferably used in a relatively quiet state. That is, when there is a wave such as on the coast, or when there is a flow of water like a river, the drainage port 1 remains as bubbles before oxygen is dissolved by aeration.
There is a problem that it flows from 18b, and it is necessary to keep it in a quiet state in order to increase the amount of dissolved oxygen. Including this meaning, a wave-dissipating structure is applied to the column 26, thereby enhancing the effect of aeration.
尚、本発明は上記実施例に限定されるものではなく、本
発明の要旨の範囲内で種々の変形実施が可能である。The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.
例えば、前記浄化槽１８に隣接して魚巣構造体を配置
し、浄化された水を魚巣空間に導くことで、魚巣空間で
の生息条件を整えることもできる。このようにして魚を
水域に呼び戻し、植物の生育をも確保することで、食物
連鎖による水質汚濁防止をも確保できる。For example, by arranging a fish nest structure adjacent to the septic tank 18 and guiding the purified water to the fish nest space, the habitation conditions in the fish nest space can be adjusted. In this way, by returning the fish to the water area and ensuring the growth of plants, it is possible to prevent the water pollution caused by the food chain.
［発明の効果］ 以上説明したように、第１請求項の発明によれば、浄化
槽の取水口を満潮時の水位よりも下方でかつ干潮時の水
位よりも上方に設け、潮位差を利用して浄化槽に対する
取水及び排水を行うようにしたので、ポンプ等に頼るこ
となく浄化処理を行うことができ、取水動力設備を付設
することによるコストアップをなくすことができる。[Effects of the Invention] As described above, according to the invention of the first claim, the water intake of the septic tank is provided below the water level at high tide and above the water level at low tide, and the tide difference is used. Since the water is taken in and the water is discharged from the septic tank, the purification process can be performed without relying on a pump or the like, and the cost increase due to the installation of water intake power equipment can be eliminated.
しかも、浄化槽が静穏水域内に設置されているので、十
分な浄化時間が確保でき、スムーズな排水が可能になる
という効果がある。Moreover, since the septic tank is installed in the calm water area, there is an effect that sufficient purification time can be secured and smooth drainage becomes possible.
また、第２請求項に係る発明によれば、浄化槽の上方に
設けられた歩道用天板の上面を歩道として利用できると
いう効果がある。Further, according to the invention of the second aspect, there is an effect that the upper surface of the sidewalk top plate provided above the septic tank can be used as a sidewalk.
更に、第３請求項に係る発明は、浄化槽の底部側に散気
装置を設けたので、溶存酸素量を高めて礫間に好気性に
保つことができ、浄化効率を向上させることが可能とな
る。Further, in the invention according to the third aspect, since the air diffuser is provided on the bottom side of the septic tank, it is possible to increase the amount of dissolved oxygen and keep aerobic between the gravel and improve the purification efficiency. Become.
そして、第４請求項に係る発明によれば、排水が浄化槽
内に逆流することがなく、確実に排水できるという効果
がある。And according to the invention which concerns on 4th Claim, there is an effect that drainage does not flow back into a septic tank, but can drain reliably.
第１図は本発明の第１実施例に係る水域の浄化装置の構
成を示す断面図、 第２図は第２実施例の浄化装置の構成を示す断面図、 第３図は実施例の浄化装置における処理水量を示すため
の説明図である。 １０……水域、１２……護岸、４……テラス護岸、 １６，２６……支柱、１８，１１８……浄化槽、 １８ａ，１１８ａ……取水口、 １８ｂ，１１８ｂ……排水口、 １９，１１９……逆止弁、 ２０……礫、２２……ネット状袋、 ２４……桟橋、３０……散気装置。FIG. 1 is a sectional view showing the structure of a water purification apparatus according to a first embodiment of the present invention, FIG. 2 is a sectional view showing the structure of a purification apparatus according to the second embodiment, and FIG. It is explanatory drawing for showing the amount of treated water in an apparatus. 10 ... Water area, 12 ... Revetment, 4 ... Terrace revetment, 16,26 ... Pillar, 18,118 ... Septic tank, 18a, 118a ... Intake port, 18b, 118b ... Drainage port, 19, 119 ... ... Check valve, 20 ... Gravel, 22 ... Net bag, 24 ... Pier, 30 ... Air diffuser.
Claims (4)
し、礫間接触により浄化作用を行う水域の浄化装置にお
いて、 前記浄化槽が設置される水域を静穏水域とする消波構造
体を設け、 前記浄化槽は、前記静穏水域に開口する取水口を、満潮
時の水位よりも下方でかつ干潮時の水位よりも上方に設
け、前記静穏水域に開口する排水口を、干潮時の水位よ
りも下方に設け、潮位差を利用して浄化槽に対する取水
及び排水を行うことを特徴とする水域の浄化装置。1. A purifying device for a water area in which gravel is housed in a septic tank installed in a water area and a cleaning action is performed by contact between the gravel, a wave-dissipating structure is provided in which the water area in which the septic tank is installed is a quiet water area. The septic tank is provided with an intake opening to the quiet water area, below the water level at high tide and above the water level at low tide, and the drain opening to the quiet water area is lower than the water level at low tide. A purification device for a water area, which is provided below and uses the tide difference to perform water intake and drainage to a septic tank.
れ、この歩道用天板は前記消波構造体によって支持され
ることを特徴とする第１請求項記載の水域の浄化装置。2. The water purification apparatus according to claim 1, wherein a sidewalk top plate is provided above the septic tank, and the sidewalk top plate is supported by the wave-dissipating structure.
噴出する散気装置を設けたことを特徴とする第１又は第
２請求項記載の水域の浄化装置。3. The water purification apparatus according to claim 1 or 2, wherein an air diffuser for ejecting a gas containing oxygen is provided on the bottom side of the septic tank.
なる逆止弁を設けたことを特徴とする第１乃至第３請求
項のいずれかに記載の水域の浄化装置。4. The water purification apparatus according to any one of claims 1 to 3, wherein the drain outlet is provided with a check valve for allowing the water flow in the septic tank to flow in one direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33349789A JPH0634992B2 (en) | 1989-12-22 | 1989-12-22 | Water purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33349789A JPH0634992B2 (en) | 1989-12-22 | 1989-12-22 | Water purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03193192A JPH03193192A (en) | 1991-08-22 |
| JPH0634992B2 true JPH0634992B2 (en) | 1994-05-11 |
Family
ID=18266720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33349789A Expired - Lifetime JPH0634992B2 (en) | 1989-12-22 | 1989-12-22 | Water purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634992B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4345099B2 (en) * | 2003-03-28 | 2009-10-14 | 株式会社大林組 | Water purification structure |
| JP2009095803A (en) * | 2007-10-18 | 2009-05-07 | Kaiyo Kensetsu Kk | Water purification apparatus |
| CN114212889A (en) * | 2021-11-10 | 2022-03-22 | 上海勘测设计研究院有限公司 | Ecological purification island of tidal river and backflushing sludge discharge method thereof |
-
1989
- 1989-12-22 JP JP33349789A patent/JPH0634992B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03193192A (en) | 1991-08-22 |
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