JP2003088886A - Method and device for increasing dissolved oxygen - Google Patents
Method and device for increasing dissolved oxygenInfo
- Publication number
- JP2003088886A JP2003088886A JP2001284780A JP2001284780A JP2003088886A JP 2003088886 A JP2003088886 A JP 2003088886A JP 2001284780 A JP2001284780 A JP 2001284780A JP 2001284780 A JP2001284780 A JP 2001284780A JP 2003088886 A JP2003088886 A JP 2003088886A
- Authority
- JP
- Japan
- Prior art keywords
- water
- oxygen
- dissolved oxygen
- increasing
- air
- 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.)
- Pending
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】本発明は海（港湾）、湖沼、
河川、ダム、堀等の貧酸素水域に酸素を供給することに
より水質の改善を図る溶存酸素増加方法および装置に関
する。TECHNICAL FIELD The present invention relates to a sea (port), lake,
The present invention relates to a dissolved oxygen increasing method and device for improving water quality by supplying oxygen to an oxygen-deficient water area such as a river, dam, or moat.
【０００２】[0002]
【従来の技術】海（港湾）、湖沼、河川、ダム、堀等に
は生活排水や産業排水等が流入しており、こうした排水
中には有機物、栄養塩類が含まれている。これらの一部
は水底に沈降して有機汚泥となる。水中の微生物はこれ
らを分解するため溶存酸素を消費するので、底層の水へ
の酸素供給が消費量より少ないと貧酸素状態となってし
まう。2. Description of the Related Art Domestic wastewater, industrial wastewater, etc. are flowing into the sea (port), lakes, rivers, dams, moats, etc., and such wastewater contains organic substances and nutrient salts. Some of these settle to the bottom of the water and become organic sludge. Microorganisms in the water consume dissolved oxygen to decompose them, so if the oxygen supply to the bottom water is less than the consumption amount, a poor oxygen state will result.
【０００３】底層水が貧酸素状態に陥ると、底泥中の有
機物は嫌気分解され、硫化物やメタンガス等の生物にと
って有害な物質が生成される。また、底泥が酸素不足に
なると底泥中の栄養塩が溶出し易くなり、水中の栄養塩
濃度を高め、赤潮を引き起こすなど環境悪化の原因とな
る。When the bottom water falls into an oxygen-deficient state, organic matter in the bottom mud is anaerobically decomposed, and toxic substances such as sulfide and methane gas are produced. In addition, when the bottom mud becomes insufficient in oxygen, the nutrient salts in the bottom mud are likely to be eluted, which increases the nutrient concentration in water and causes red tide, which causes environmental deterioration.
【０００４】図４は、港湾、湖沼、ダム湖等において夏
季は水面付近は温度が高く、水深が下がると急に温度が
低下する温度躍層Ａが形成された状態を示すもので、水
底は温度が一番低くなっている（実線Ｃは温度分布曲線
を示している）。FIG. 4 shows a state in which a thermocline A where the temperature near the water surface is high in the summer in a harbor, a lake, a dam lake, etc., and the temperature suddenly decreases when the water depth decreases. The temperature is the lowest (solid line C shows the temperature distribution curve).
【０００５】こうした状態では下層の温度が低く密度が
大きい水は水塊を形成しており、表層付近の水温が高く
密度が小さい水との混ざり合いはほとんどない。従っ
て、表層付近の溶存酸素濃度の高い水は、底層へ供給さ
れることはなく、底層の貧酸素状態は解消されない状態
となっている。In such a state, water having a low temperature in the lower layer and a high density forms a water mass, and there is almost no mixing with water having a high water temperature and a low density in the vicinity of the surface layer. Therefore, water having a high dissolved oxygen concentration near the surface layer is not supplied to the bottom layer, and the poor oxygen state of the bottom layer is not eliminated.
【０００６】このようなことは水温による場所だけでな
く、汽水域のように塩分濃度の急激な変化が起きる塩分
躍層の形成によっても同様な現象を生ずる。[0006] Such a phenomenon occurs not only in a place depending on the water temperature, but also in the formation of a salt-occlusion layer where a sharp change in salt concentration occurs in a brackish water region.
【０００７】図５はこのように劣化した底層の水質を改
善する従来の装置を示すもので、散気装置によるもの、
水流発生装置によるものなどの改善技術があり、図５で
は池１の左側に散気装置による酸素供給技術を右側に水
流発生装置による酸素供給技術を示している。FIG. 5 shows a conventional device for improving the water quality of the bottom layer deteriorated in this way, which uses an air diffuser,
There are improvements such as those using a water flow generator. In FIG. 5, oxygen supply technology by a diffuser is shown on the left side of the pond 1 and oxygen supply technology by a water flow generator is shown on the right side.
【０００８】先づ、散気装置による酸素供給技術につい
て説明する。散気装置はコンプレッサ２により水底まで
空気を送り、これを散気板３から水底に放出するもの
で、底層の溶存酸素増加、及び連行水による温度躍層の
破壊による上層からの溶存酸素を水底に供給するよう狙
ったものである。First, an oxygen supply technique using an air diffuser will be described. The air diffuser sends air to the water bottom by the compressor 2 and discharges it from the air diffuser plate 3 to the water bottom. It is intended to be supplied to.
【０００９】しかしながら、こうした方法では水深に応
じて空気の供給圧力が必要になり、水深が深い場合は電
力の消費が大きくなってしまうという欠点があった。However, such a method has a drawback that air supply pressure is required according to the water depth, and power consumption increases when the water depth is deep.
【００１０】次に、水流発生装置による酸素供給技術に
ついて説明する。図５の右側に示すように、この酸素供
給技術においては、水流発生装置を構成するポンプ４に
よって溶存酸素の豊富な表層の水を吸い、水底に放出す
ることにより周囲の水を連行水とし、下層水と混合さ
せ、底層へ溶存酸素供給を行うものである。Next, the oxygen supply technique by the water flow generator will be described. As shown on the right side of FIG. 5, in this oxygen supply technique, the water in the surface layer rich in dissolved oxygen is absorbed by the pump 4 constituting the water flow generator, and is discharged to the bottom of the water to make the surrounding water entrained water. Dissolved oxygen is supplied to the bottom layer by mixing with lower layer water.
【００１１】しかしながら、この方法においても水深に
応じたポンプの吐出圧力が必要となるため、水深が深い
と電力の消費が大きくなるという欠点があった。However, this method also requires a discharge pressure of the pump in accordance with the water depth, and therefore has a drawback that power consumption increases when the water depth is deep.
【００１２】[0012]
【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、所望の水深に効率良
く酸素を供給する方法および装置を提供することを目的
とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a method and apparatus for efficiently supplying oxygen to a desired water depth.
【００１３】[0013]
【課題を解決するための手段】この目的を達成するため
に、本発明は、請求項１においては、海，湖沼，河川，
ダム，堀等の環境中に存在する水の溶存酸素の増加を図
る方法において、所望の水域から汲み上げた水を所望の
水深と水上の間に設置した管の水上部に供給し水頭圧を
用いて所望の水深に排出することを特徴としている。In order to achieve this object, the present invention provides, in claim 1, a sea, a lake, a river,
In the method of increasing the dissolved oxygen in water existing in the environment such as dams and moats, water pumped from the desired water area is supplied to the water upper part of the pipe installed between the desired water depth and the water, and the water head pressure is used. And discharge to a desired water depth.
【００１４】請求項２においては、請求項１記載の溶存
酸素増加方法において、所望の水域から汲み上げた水に
酸素を溶解させ、所望の水深の貧酸素水域に水頭圧を用
いて排出することを特徴としている。According to a second aspect of the present invention, in the method for increasing dissolved oxygen according to the first aspect, oxygen is dissolved in water pumped from a desired water area, and the oxygen is discharged to a hypoxic water area having a desired water depth by using a head pressure. It has a feature.
【００１５】請求項３においては、請求項１記載の溶存
酸素増加方法において、貧酸素水域から汲み上げた水に
酸素を溶解させ所望の水深の貧酸素水域に水頭圧を用い
て排出することを特徴としている。According to a third aspect of the present invention, in the method for increasing dissolved oxygen according to the first aspect, oxygen is dissolved in water pumped from the poor oxygen water area and the oxygen is discharged to the poor oxygen water area of a desired depth by using hydrohead pressure. I am trying.
【００１６】請求項４においては、請求項２または３記
載の溶存酸素増加方法において、貧酸素水域は溶存酸素
濃度が３ｍｇ／ｌ以下であることを特徴としている。A fourth aspect of the present invention is the method for increasing dissolved oxygen according to the second or third aspect, characterized in that the dissolved oxygen concentration in the poor oxygen water region is 3 mg / l or less.
【００１７】請求項５においては、請求項１〜４記載の
溶存酸素増加方法において、汲み上げる領域の水の密度
と排出する領域の水の密度差が1kg／m３以内の範囲の水
深であることを特徴としている。According to a fifth aspect of the present invention, in the method for increasing dissolved oxygen according to the first to fourth aspects, the difference between the density of water in the pumping area and the density of water in the discharging area is within 1 kg / m 3 of water depth. Is characterized by.
【００１８】請求項６においては、請求項２〜５いずれ
かに記載の溶存酸素増加方法において、酸素の溶解は大
気中の飽和溶存酸素の２倍以上としたことを特徴として
いる。A sixth aspect of the present invention is characterized in that, in the method for increasing dissolved oxygen according to any of the second to fifth aspects, the dissolution of oxygen is twice or more of the saturated dissolved oxygen in the atmosphere.
【００１９】請求項７においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中に配置され他
端が所望の水域に配置された管と、酸素溶解手段と、か
らなり、前記吸引ポンプで汲み上げた水に前記酸素溶解
手段を用いて酸素を溶解し、前記管の空中に位置する部
分に排出するように構成したことを特徴としている。According to a seventh aspect of the present invention, in a device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., a suction pump and one end are arranged in the air and the other end is desired. Of the pipe arranged in the water area, and oxygen dissolving means, so that oxygen is dissolved in the water pumped up by the suction pump by using the oxygen dissolving means, and the oxygen is discharged to a portion of the pipe located in the air. It is characterized by being configured.
【００２０】請求項８においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中に配置され他
端が所望の水域に配置された管と、からなり、前記吸引
ポンプで汲み上げた水を前記管の空中に位置する部分に
排出するように構成したことを特徴としている。According to the present invention, in a device for increasing dissolved oxygen in water existing in an environment such as sea, lake, river, dam, moat, etc., a suction pump and one end are arranged in the air and the other end is desired. And a pipe arranged in the water area, and the water pumped up by the suction pump is discharged to a portion of the pipe located in the air.
【００２１】請求項９においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中に配置され他
端が所望の水深に配置された吸引管および排出管と、酸
素溶解手段と、からなり、前記吸引管から吸引ポンプに
より汲み上げた水に前記酸素溶解手段を用いて酸素を溶
解し、前記排出管の空中に位置する部分に排出するよう
に構成したことを特徴としている。According to a ninth aspect of the present invention, in a device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., a suction pump and one end are arranged in the air and the other end is desired. A suction pipe and a discharge pipe arranged at a water depth of, and an oxygen dissolving means, and dissolves oxygen using the oxygen dissolving means in the water pumped up from the suction pipe by a suction pump to leave the exhaust pipe in the air. It is characterized in that it is configured to discharge to a portion located.
【００２２】請求項１０においては、請求項８または９
記載の溶存酸素増加装置において、前記酸素溶解手段は
吸引ポンプの前段または後段または両方に設けたことを
特徴としている。In claim 10, claim 8 or 9
The dissolved oxygen increasing apparatus described above is characterized in that the oxygen dissolving means is provided in a front stage or a rear stage of the suction pump or in both stages.
【００２３】[0023]
【発明の実施の形態】図１は本発明の概念を示す実施形
態の一例を示すもので、１は海、湖沼、ダム、堀等（以
下、これらを総称して単に湖沼という）を示している。
１１ａは排出管であり、この排出管１１ａは一端が大気
中に他端は所望の水深（点線Ａで示す温度躍層以下）に
位置するように配置されている。１２はポンプである。
このポンプ１２の吸引側には配管１２ｂが接続されてお
り、一端がポンプに他端が湖沼１の水面付近に配置され
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment showing the concept of the present invention, in which reference numeral 1 designates a sea, a lake, a dam, a moat, etc. (hereinafter collectively referred to simply as a lake). There is.
Reference numeral 11a is a discharge pipe, and the discharge pipe 11a is arranged so that one end is located in the atmosphere and the other end is located at a desired water depth (below the thermocline indicated by the dotted line A). 12 is a pump.
A pipe 12b is connected to the suction side of the pump 12, one end of which is arranged at the pump and the other end of which is arranged near the water surface of the lake 1.
【００２４】上記の構成において、ポンプ１２により配
管１２ｂを介して水を汲み上げる。この水面付近の水は
ポンプ１２の吐出側に接続された配管１２ａを介して排
出管１１ａの一端の大気開放側に放出される。この水は
水頭圧Ｈにより排出管１１ａ内を通って水底方向に移動
し、排水管の先端から水底付近に放出される。In the above structure, water is pumped up by the pump 12 through the pipe 12b. The water near the water surface is discharged to the atmosphere open side at one end of the discharge pipe 11a via the pipe 12a connected to the discharge side of the pump 12. This water moves toward the water bottom through the discharge pipe 11a due to the head pressure H, and is discharged from the tip of the drain pipe to the vicinity of the water bottom.
【００２５】上記の構成によれば、水頭圧を利用して
（多大な電力を消費することなく）水面付近の溶存酸素
の高い水が水底付近の溶存酸素の低い水と交換されるの
で、水底付近の水質を溶存酸素の高い水に改善すること
ができる。According to the above structure, the water having high dissolved oxygen near the water surface is exchanged with the water having low dissolved oxygen near the water bottom by utilizing the head pressure (without consuming a large amount of electric power). Water quality in the vicinity can be improved to water with high dissolved oxygen.
【００２６】ところで、水面付近の水は空気と接触して
いるので水底付近の水に比較すれば多くの酸素を含んで
いるが、空気そのものには酸素が１／５程度しか含まれ
ていないので飽和する酸素の量は限られたものとなって
いる。図２は汲み上げた水に酸素を供給することにより
更に溶存酸素の高い水を得るようにしたもので、図１に
示す溶存酸素増加装置において、ポンプ１２の後段に酸
素溶解手段１３を設けたものである。このような構成に
よれば汲み上げた表層水に強制的に酸素を溶解させるこ
とができ、水頭圧を利用して（多大な電力を消費するこ
となく）水底付近の水質をより高い溶存酸素水に改善す
ることができる。By the way, since the water near the water surface is in contact with air, it contains more oxygen than the water near the bottom of the water, but the air itself contains only about 1/5 of oxygen. The amount of saturated oxygen is limited. FIG. 2 shows a structure in which water having a higher dissolved oxygen is obtained by supplying oxygen to the pumped water. In the dissolved oxygen increasing device shown in FIG. 1, an oxygen dissolving means 13 is provided after the pump 12. Is. With this configuration, oxygen can be forcibly dissolved in the pumped surface water, and the water quality near the bottom can be converted to higher dissolved oxygen water by utilizing the head pressure (without consuming a large amount of electricity). Can be improved.
【００２７】先に述べたように表層水と深層水では温度
（密度）が異なるので、溶存酸素の高い水を水底に供給
しても浮上しても交じり合う度合いが少ないという問題
がある。図３はこの問題を解決したもので、水の汲み上
げ側にも排出管１１ａと同等の吸引管１１ｂを配置した
ものである。即ちこの吸引管１１ｂの一端は空気中に配
置され、他端は温度躍層以下の水底付近に配置されてい
る。なお、ポンプ１２の吸引側の配管１２ｂは水の吸引
により先端が水面より露出しない程度の深さに配置され
ている。As described above, since surface water and deep water have different temperatures (density), there is a problem in that water having a high dissolved oxygen content does not mix with each other even when supplied to the bottom or floated. FIG. 3 shows a solution to this problem, in which a suction pipe 11b equivalent to the discharge pipe 11a is arranged on the water pumping side. That is, one end of this suction pipe 11b is arranged in the air, and the other end is arranged near the water bottom below the thermocline. The pipe 12b on the suction side of the pump 12 is arranged at a depth such that the tip of the pipe 12b is not exposed above the water surface due to the suction of water.
【００２８】この場合、吸引管１１ｂと排出管１１ａの
先端は、水底付近から汲み上げる水の密度と排出する水
底付近の水の密度差が1kg／m３以内の範囲であれば、密
度差による水の上昇がなく効率良く溶存酸素を増加させ
ることができるIn this case, the tips of the suction pipe 11b and the discharge pipe 11a have a water density difference of less than 1 kg / m 3 when the difference between the density of water pumped from near the water bottom and the density of water discharged near the water bottom is within 1 kg / m 3. The dissolved oxygen can be increased efficiently without increasing the
【００２９】このような構成によれば、ポンプ１２が汲
み上げる水は水底からの密度の高い水となるので、排出
管１１ａを介して湖沼に排出される水も密度の高い水と
なる（ポンプ１２で吸い上げられた水が配管１２ａ，１
２ｂ，酸素溶解手段１３を通る間の温度（密度）上昇は
無視できる程度である）。According to this structure, the water pumped by the pump 12 has a high density from the bottom of the water, so that the water discharged to the lake through the discharge pipe 11a also has a high density (the pump 12). The water sucked up by the pipes 12a, 1
2b, the rise in temperature (density) while passing through the oxygen dissolving means 13 is negligible.
【００３０】従って水底付近に放出された溶存酸素の高
い水は水底付近の水と混合するので、高い溶存酸素水に
改善することができる。更にここで示した両端を開放し
た管を使用することにより水深の深い水域への水の汲み
上げ、排出を行なう場合でも電力の増加なしで溶存酸素
濃度の高い水を供給することができる。Therefore, since the water with a high dissolved oxygen released near the water bottom mixes with the water near the water bottom, it can be improved to a high dissolved oxygen water. Further, by using the pipe whose both ends are open, water having a high dissolved oxygen concentration can be supplied without increasing the electric power even when pumping and discharging the water into a deep water area.
【００３１】なお、図２および図３に示す実施例では酸
素溶解手段１３をポンプ１２の後段に配置した例を示し
たが、酸素溶解手段はポンプ１２の前段配置してもよ
く、両方に配置してもよい。また、酸素溶解手段で使用
する酸素は酸素ボンベからの酸素や酸素発生器からの酸
素であってもよく、単に空気を吸い込む構造のものであ
ってもよい。In the embodiments shown in FIGS. 2 and 3, the oxygen dissolving means 13 is arranged in the latter stage of the pump 12, but the oxygen dissolving means may be arranged in the former stage of the pump 12 or in both of them. You may. The oxygen used in the oxygen dissolving means may be oxygen from an oxygen cylinder or oxygen from an oxygen generator, or may have a structure that simply sucks air.
【００３２】本発明の以上の説明は、説明および例示を
目的として特定の好適な実施例を示したに過ぎない。し
たがって本発明はその本質から逸脱せずに多くの変更、
変形をなし得ることは当業者に明らかである。特許請求
の範囲の欄の記載により定義される本発明の範囲は、そ
の範囲内の変更、変形を包含するものとする。The above description of the present invention has been presented only with reference to particular preferred embodiments for purposes of illustration and illustration. Accordingly, the invention is subject to many modifications without departing from its essence,
It will be apparent to those skilled in the art that variations can be made. The scope of the present invention, which is defined by the description in the scope of claims, includes changes and modifications within the scope.
【００３３】[0033]
【発明の効果】本発明によれば、所望の水深の溶存酸素
の増加を図る方法および装置として、一端を空中に配置
し他端を所望の水深に配置した管を用い、水面または所
望の水深から汲み上げた水をそのまま、または酸素を溶
解して管の空中に位置する部分に排出するようにした。According to the present invention, as a method and apparatus for increasing dissolved oxygen at a desired water depth, a pipe having one end in the air and the other end at a desired water depth is used, and the water surface or the desired water depth is used. The water drawn from the tube was discharged as it was, or the oxygen was dissolved and discharged into a portion of the tube located in the air.
【００３４】その結果、水頭圧で所望の水深まで酸素溶
解度の高い水を供給することができ、エネルギー（電
力）の消費を減少させることができる。また、水の密度
が1kg／m３以内の範囲の水を汲み上げ排出るようにし、
酸素の溶解を大気中の飽和溶存酸素の２倍以上としたの
で、密度差による水の上昇がなく効率良く溶存酸素を増
加させることができる。As a result, it is possible to supply water having a high oxygen solubility to a desired water depth by the head pressure, and it is possible to reduce energy (electric power) consumption. Also, the water with a density of 1 kg / m 3 or less is pumped up and discharged,
Since the dissolution of oxygen is twice or more that of the saturated dissolved oxygen in the atmosphere, the dissolved oxygen can be efficiently increased without the rise of water due to the difference in density.
【図１】本発明の溶存酸素増加方法と装置の実施形態の
一例を示す図である。FIG. 1 is a diagram showing an example of an embodiment of a method and apparatus for increasing dissolved oxygen according to the present invention.
【図２】本発明の溶存酸素増加方法と装置の実施形態の
他の例を示す図である。FIG. 2 is a diagram showing another example of the embodiment of the method and apparatus for increasing dissolved oxygen according to the present invention.
【図３】本発明の溶存酸素増加方法と装置の実施形態の
他の例を示す図である。FIG. 3 is a diagram showing another example of the embodiment of the method and apparatus for increasing dissolved oxygen according to the present invention.
【図４】湖沼などに形成される温度躍層の説明図であ
る。FIG. 4 is an explanatory diagram of a thermocline formed in a lake or the like.
【図５】従来の溶存酸素増加方法と構成を示す説明図で
ある。FIG. 5 is an explanatory diagram showing a conventional dissolved oxygen increasing method and configuration.
１ 湖沼 ２ コンプレッサ ３ 散気板 １１ａ 排出管 １１ｂ 吸引管 ４，１２ ポンプ １２ａ，１２ｂ 配管 １３ 酸素溶解手段 1 lake 2 compressor 3 Air diffuser 11a discharge pipe 11b suction tube 4,12 pump 12a, 12b piping 13 Oxygen dissolution means
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年１２月２０日（２００１．１２．
２０）[Submission date] December 20, 2001 (2001.12.
20)
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 溶存酸素増加方法および装置Title: Method and apparatus for increasing dissolved oxygen
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は海（港湾）、湖沼、
河川、ダム、堀等の貧酸素水域に酸素を供給することに
より水質の改善を図る溶存酸素増加方法および装置に関
する。TECHNICAL FIELD The present invention relates to a sea (port), lake,
The present invention relates to a dissolved oxygen increasing method and device for improving water quality by supplying oxygen to an oxygen-deficient water area such as a river, dam, or moat.
【０００２】[0002]
【従来の技術】海（港湾）、湖沼、河川、ダム、堀等に
は生活排水や産業排水等が流入しており、こうした排水
中には有機物、栄養塩類が含まれている。これらの一部
は水底に沈降して有機汚泥となる。水中の微生物はこれ
らを分解するため溶存酸素を消費するので、底層の水へ
の酸素供給が消費量より少ないと貧酸素状態となってし
まう。2. Description of the Related Art Domestic wastewater, industrial wastewater, etc. are flowing into the sea (port), lakes, rivers, dams, moats, etc., and such wastewater contains organic substances and nutrient salts. Some of these settle to the bottom of the water and become organic sludge. Microorganisms in the water consume dissolved oxygen to decompose them, so if the oxygen supply to the bottom water is less than the consumption amount, a poor oxygen state will result.
【０００３】底層水が貧酸素状態に陥ると、底泥中の有
機物は嫌気分解され、硫化物やメタンガス等の生物にと
って有害な物質が生成される。また、底泥が酸素不足に
なると底泥中の栄養塩が溶出し易くなり、水中の栄養塩
濃度を高め、赤潮を引き起こすなど環境悪化の原因とな
る。When the bottom water falls into an oxygen-deficient state, organic matter in the bottom mud is anaerobically decomposed, and toxic substances such as sulfide and methane gas are produced. In addition, when the bottom mud becomes insufficient in oxygen, the nutrient salts in the bottom mud are likely to be eluted, which increases the nutrient concentration in water and causes red tide, which causes environmental deterioration.
【０００４】図４は、港湾、湖沼、ダム湖等において夏
季は水面付近は温度が高く、水深が下がると急に温度が
低下する温度躍層Ａが形成された状態を示すもので、水
底は温度が一番低くなっている（実線Ｃは温度分布曲線
を示している）。FIG. 4 shows a state in which a thermocline A where the temperature near the water surface is high in the summer in a harbor, a lake, a dam lake, etc., and the temperature suddenly decreases when the water depth decreases. The temperature is the lowest (solid line C shows the temperature distribution curve).
【０００５】こうした状態では下層の温度が低く密度が
大きい水は水塊を形成しており、表層付近の水温が高く
密度が小さい水との混ざり合いはほとんどない。従っ
て、表層付近の溶存酸素濃度の高い水は、底層へ供給さ
れることはなく、底層の貧酸素状態は解消されない状態
となっている。In such a state, water having a low temperature in the lower layer and a high density forms a water mass, and there is almost no mixing with water having a high water temperature and a low density in the vicinity of the surface layer. Therefore, water having a high dissolved oxygen concentration near the surface layer is not supplied to the bottom layer, and the poor oxygen state of the bottom layer is not eliminated.
【０００６】このようなことは水温による場所だけでな
く、汽水域のように塩分濃度の急激な変化が起きる塩分
躍層の形成によっても同様な現象を生ずる。[0006] Such a phenomenon occurs not only in a place depending on the water temperature, but also in the formation of a salt-occlusion layer where a sharp change in salt concentration occurs in a brackish water region.
【０００７】図５はこのように劣化した底層の水質を改
善する従来の装置を示すもので、散気装置によるもの、
水流発生装置によるものなどの改善技術があり、図５で
は池１の左側に散気装置による酸素供給技術を右側に水
流発生装置による酸素供給技術を示している。FIG. 5 shows a conventional device for improving the water quality of the bottom layer deteriorated in this way, which uses an air diffuser,
There are improvements such as those using a water flow generator. In FIG. 5, oxygen supply technology by a diffuser is shown on the left side of the pond 1 and oxygen supply technology by a water flow generator is shown on the right side.
【０００８】先づ、散気装置による酸素供給技術につい
て説明する。散気装置はコンプレッサ２により水底まで
空気を送り、これを散気板３から水底に放出するもの
で、底層の溶存酸素増加、及び連行水による温度躍層の
破壊による上層からの溶存酸素を水底に供給するよう狙
ったものである。First, an oxygen supply technique using an air diffuser will be described. The air diffuser sends air to the water bottom by the compressor 2 and discharges it from the air diffuser plate 3 to the water bottom. It is intended to be supplied to.
【０００９】しかしながら、こうした方法では水深に応
じて空気の供給圧力が必要になり、水深が深い場合は電
力の消費が大きくなってしまうという欠点があった。However, such a method has a drawback that air supply pressure is required according to the water depth, and power consumption increases when the water depth is deep.
【００１０】次に、水流発生装置による酸素供給技術に
ついて説明する。図５の右側に示すように、この酸素供
給技術においては、水流発生装置を構成するポンプ４に
よって溶存酸素の豊富な表層の水を吸い、水底に放出す
ることにより周囲の水を連行水とし、下層水と混合さ
せ、底層へ溶存酸素供給を行うものである。Next, the oxygen supply technique by the water flow generator will be described. As shown on the right side of FIG. 5, in this oxygen supply technique, the water in the surface layer rich in dissolved oxygen is absorbed by the pump 4 constituting the water flow generator, and is discharged to the bottom of the water to make the surrounding water entrained water. Dissolved oxygen is supplied to the bottom layer by mixing with lower layer water.
【００１１】しかしながら、この方法においても水深に
応じたポンプの吐出圧力が必要となるため、水深が深い
と電力の消費が大きくなるという欠点があった。However, this method also requires a discharge pressure of the pump in accordance with the water depth, and therefore has a drawback that power consumption increases when the water depth is deep.
【００１２】[0012]
【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、所望の水深に効率良
く酸素を供給する方法および装置を提供することを目的
とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a method and apparatus for efficiently supplying oxygen to a desired water depth.
【００１３】[0013]
【課題を解決するための手段】この目的を達成するため
に、本発明は、請求項１においては、海，湖沼，河川，
ダム，堀等の環境中に存在する水の溶存酸素の増加を図
る方法において、所望の水域から汲み上げた水を所望の
水深と水上の間に設置した管の水上部に供給し水頭圧を
用いて所望の水深に排出することを特徴としている。In order to achieve this object, the present invention provides, in claim 1, a sea, a lake, a river,
In the method of increasing the dissolved oxygen in water existing in the environment such as dams and moats, water pumped from the desired water area is supplied to the water upper part of the pipe installed between the desired water depth and the water, and the water head pressure is used. And discharge to a desired water depth.
【００１４】請求項２においては、請求項１記載の溶存
酸素増加方法において、所望の水域から汲み上げた水に
酸素を溶解させ、所望の水深の貧酸素水域に水頭圧を用
いて排出することを特徴としている。According to a second aspect of the present invention, in the method for increasing dissolved oxygen according to the first aspect, oxygen is dissolved in water pumped from a desired water area, and the oxygen is discharged to a hypoxic water area having a desired water depth by using a head pressure. It has a feature.
【００１５】請求項３においては、請求項１記載の溶存
酸素増加方法において、貧酸素水域から汲み上げた水に
酸素を溶解させ所望の水深の貧酸素水域に水頭圧を用い
て排出することを特徴としている。According to a third aspect of the present invention, in the method for increasing dissolved oxygen according to the first aspect, oxygen is dissolved in water pumped from the poor oxygen water area and the oxygen is discharged to the poor oxygen water area of a desired depth by using hydrohead pressure. I am trying.
【００１６】請求項４においては、請求項２または３記
載の溶存酸素増加方法において、貧酸素水域は溶存酸素
濃度が３ｍｇ／ｌ以下であることを特徴としている。A fourth aspect of the present invention is the method for increasing dissolved oxygen according to the second or third aspect, characterized in that the dissolved oxygen concentration in the poor oxygen water region is 3 mg / l or less.
【００１７】請求項５においては、請求項１〜４記載の
溶存酸素増加方法において、汲み上げる領域の水の密度
と排出する領域の水の密度差が１０kg／m３以内の範囲
の水深であることを特徴としている。According to a fifth aspect of the present invention, in the method for increasing dissolved oxygen according to the first to fourth aspects, the difference between the density of water in the pumping area and the density of water in the discharging area is within 10 kg / m 3. Is characterized by.
【００１８】請求項６においては、請求項２〜５いずれ
かに記載の溶存酸素増加方法において、酸素の溶解は大
気中の飽和溶存酸素の２倍以上としたことを特徴として
いる。A sixth aspect of the present invention is characterized in that, in the method for increasing dissolved oxygen according to any of the second to fifth aspects, the dissolution of oxygen is twice or more of the saturated dissolved oxygen in the atmosphere.
【００１９】請求項７においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中に配置され他
端が所望の水域に配置された管と、酸素溶解手段と、か
らなり、前記吸引ポンプで汲み上げた水に前記酸素溶解
手段を用いて酸素を溶解し、前記管の空中（水上）に位
置する部分に排出するように構成したことを特徴として
いる。According to a seventh aspect of the present invention, in a device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., a suction pump and one end are arranged in the air and the other end is desired. Of the pipe and the oxygen dissolving means, the oxygen is dissolved in the water pumped by the suction pump by using the oxygen dissolving means, and the oxygen is discharged to a portion located in the air (on the water) of the pipe. It is characterized in that it is configured to.
【００２０】請求項８においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中に配置され他
端が所望の水域に配置された管と、からなり、前記吸引
ポンプで汲み上げた水を前記管の空中（水上）に位置す
る部分に排出するように構成したことを特徴としてい
る。According to the present invention, in a device for increasing dissolved oxygen in water existing in an environment such as sea, lake, river, dam, moat, etc., a suction pump and one end are arranged in the air and the other end is desired. And a pipe arranged in the water area, and the water pumped up by the suction pump is discharged to a portion of the pipe located in the air (above the water).
【００２１】請求項９においては、海，湖沼，河川，ダ
ム，堀等の環境中に存在する水の溶存酸素の増加を図る
装置において、吸引ポンプと、一端が空中（水上）に配
置され他端が所望の水深に配置された吸引管および排出
管と、酸素溶解手段と、からなり、前記吸引管から吸引
ポンプにより汲み上げた水に前記酸素溶解手段を用いて
酸素を溶解し、前記排出管の空中（水上）に位置する部
分に排出するように構成したことを特徴としている。According to a ninth aspect of the present invention, in a device for increasing dissolved oxygen in water existing in the environment such as the sea, lakes, rivers, dams, moats, etc., the suction pump and one end thereof are arranged in the air (above the water). A suction pipe and a discharge pipe whose ends are arranged at a desired water depth, and an oxygen dissolving means, which dissolves oxygen in the water drawn up by a suction pump from the suction pipe by using the oxygen dissolving means, and the discharge pipe. It is characterized in that it is configured to be discharged to a portion located in the air (above water).
【００２２】請求項１０においては、請求項８または９
記載の溶存酸素増加装置において、前記酸素溶解手段は
吸引ポンプの前段または後段または両方に設けたことを
特徴としている。In claim 10, claim 8 or 9
The dissolved oxygen increasing apparatus described above is characterized in that the oxygen dissolving means is provided in a front stage or a rear stage of the suction pump or in both stages.
【００２３】[0023]
【発明の実施の形態】図１は本発明の概念を示す実施形
態の一例を示すもので、１は海、湖沼、ダム、堀等（以
下、これらを総称して単に湖沼という）を示している。
１１ａは排出管であり、この排出管１１ａは一端が大気
中に他端は所望の水深（点線Ａで示す温度躍層以下）に
位置するように配置されている。１２はポンプである。
このポンプ１２の吸引側には配管１２ｂが接続されてお
り、一端がポンプに他端が湖沼１の水面付近に配置され
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment showing the concept of the present invention, in which reference numeral 1 designates a sea, a lake, a dam, a moat, etc. (hereinafter collectively referred to simply as a lake). There is.
Reference numeral 11a is a discharge pipe, and the discharge pipe 11a is arranged so that one end is located in the atmosphere and the other end is located at a desired water depth (below the thermocline indicated by the dotted line A). 12 is a pump.
A pipe 12b is connected to the suction side of the pump 12, one end of which is arranged at the pump and the other end of which is arranged near the water surface of the lake 1.
【００２４】上記の構成において、ポンプ１２により配
管１２ｂを介して水を汲み上げる。この水面付近の水は
ポンプ１２の吐出側に接続された配管１２ａを介して排
出管１１ａの一端の大気開放側に放出される。この水は
水頭圧Ｈにより排出管１１ａ内を通って水底方向に移動
し、排水管の先端から水底付近に放出される。In the above structure, water is pumped up by the pump 12 through the pipe 12b. The water near the water surface is discharged to the atmosphere open side at one end of the discharge pipe 11a via the pipe 12a connected to the discharge side of the pump 12. This water moves toward the water bottom through the discharge pipe 11a due to the head pressure H, and is discharged from the tip of the drain pipe to the vicinity of the water bottom.
【００２５】上記の構成によれば、水頭圧を利用して
（多大な電力を消費することなく）水面付近の溶存酸素
の高い水が水底付近の溶存酸素の低い水と交換されるの
で、水底付近の水質を溶存酸素の高い水に改善すること
ができる。According to the above structure, the water having high dissolved oxygen near the water surface is exchanged with the water having low dissolved oxygen near the water bottom by utilizing the head pressure (without consuming a large amount of electric power). Water quality in the vicinity can be improved to water with high dissolved oxygen.
【００２６】ところで、水面付近の水は空気と接触して
いるので水底付近の水に比較すれば多くの酸素を含んで
いるが、空気そのものには酸素が１／５程度しか含まれ
ていないので飽和する酸素の量は限られたものとなって
いる。図２は汲み上げた水に酸素を供給することにより
更に溶存酸素の高い水を得るようにしたもので、図１に
示した例に、ポンプ１２の後段に酸素溶解手段１３を設
けたものである。このような構成によれば汲み上げた表
層水に強制的に酸素を溶解させることができ、水頭圧を
利用して（多大な電力を消費することなく）水底付近の
水質をより高い溶存酸素水に改善することができる。By the way, since the water near the water surface is in contact with air, it contains more oxygen than the water near the bottom of the water, but the air itself contains only about 1/5 of oxygen. The amount of saturated oxygen is limited. FIG. 2 shows a structure in which oxygen having a higher dissolved oxygen content is obtained by supplying oxygen to the pumped water. In the example shown in FIG. 1, an oxygen dissolving means 13 is provided after the pump 12. . With this configuration, oxygen can be forcibly dissolved in the pumped surface water, and the water quality near the bottom can be converted to higher dissolved oxygen water by utilizing the head pressure (without consuming a large amount of electricity). Can be improved.
【００２７】先に述べたように表層水と深層水では温度
（密度）が異なるので、溶存酸素の高い水を水底に供給
しても浮上してしまい、交じり合う度合いが少ないとい
う問題がある。また、汽水域などでは塩分濃度により水
の密度差を生じており、同様の問題を生じてしまう。図
３はこの問題を解決したもので、水の汲み上げ側にも排
出管１１ａと同等の吸引管１１ｂを配置したものであ
る。即ちこの吸引管１１ｂの一端は空中（水上）に配置
され、他端は温度躍層（塩分躍層）以下の水底付近に配
置されている。なお、ポンプ１２の吸引側の配管１２ｂ
は水の吸引により先端が水面より露出しない程度の深さ
に配置されている。Since the surface water and the deep water have different temperatures (density) as described above, there is a problem that even if water having a high dissolved oxygen is supplied to the bottom of the water, it floats and the degree of mixing is small. Further, in brackish water areas, the density of water varies depending on the salt concentration, and the same problem occurs. FIG. 3 shows a solution to this problem, in which a suction pipe 11b equivalent to the discharge pipe 11a is arranged on the water pumping side. That is, one end of this suction pipe 11b is arranged in the air (above water), and the other end is arranged near the bottom of the water below the thermocline (salting layer). The pipe 12b on the suction side of the pump 12
Is placed at such a depth that the tip is not exposed above the water surface due to the suction of water.
【００２８】この場合、吸引管１１ｂと排出管１１ａの
先端は、水底付近から汲み上げる水の密度と排出する水
底付近の水の密度差が１０kg／m３以内の範囲であれ
ば、密度差による水の上昇がなく効率良く所望の水深の
溶存酸素を増加させることができる[0028] In this case, the tip of the suction pipe 11b and the discharge pipe 11a, if the range density difference is within 10 kg / m 3 of water near the water bottom for discharging the density of water pumped up from near the bottom of the water, the water by density difference It is possible to efficiently increase dissolved oxygen at a desired water depth without increasing
【００２９】このような構成によれば、ポンプ１２が汲
み上げる水は水底からの密度の高い水となるので、排出
管１１ａを介して湖沼に排出される水も密度の高い水と
なる（ポンプ１２で吸い上げられた水が配管１２ａ，１
２ｂ，酸素溶解手段１３を通る間の温度（密度）上昇は
無視できる程度である）。According to this structure, the water pumped by the pump 12 has a high density from the bottom of the water, so that the water discharged to the lake through the discharge pipe 11a also has a high density (the pump 12). The water sucked up by the pipes 12a, 1
2b, the rise in temperature (density) while passing through the oxygen dissolving means 13 is negligible.
【００３０】従って水底付近に放出された溶存酸素の高
い水は水底付近の水と混合するので、高い溶存酸素水に
改善することができる。更にここで示した両端を開放し
た管を使用することにより水深の深い水域への水の汲み
上げ、排出を行なう場合でも電力の増加なしで溶存酸素
濃度の高い水を供給することができる。Therefore, since the water with a high dissolved oxygen released near the water bottom mixes with the water near the water bottom, it can be improved to a high dissolved oxygen water. Further, by using the pipe whose both ends are open, water having a high dissolved oxygen concentration can be supplied without increasing the electric power even when pumping and discharging the water into a deep water area.
【００３１】なお、図２および図３に示す実施例では酸
素溶解手段１３をポンプ１２の後段に配置した例を示し
たが、酸素溶解手段はポンプ１２の前段配置してもよ
く、両方に配置してもよい。また、酸素溶解手段で使用
する酸素は酸素ボンベからの酸素や酸素発生器からの酸
素であってもよく、単に空気を吸い込む構造のものであ
ってもよい。In the embodiments shown in FIGS. 2 and 3, the oxygen dissolving means 13 is arranged in the latter stage of the pump 12, but the oxygen dissolving means may be arranged in the former stage of the pump 12 or in both of them. You may. The oxygen used in the oxygen dissolving means may be oxygen from an oxygen cylinder or oxygen from an oxygen generator, or may have a structure that simply sucks air.
【００３２】本発明の以上の説明は、説明および例示を
目的として特定の好適な実施例を示したに過ぎない。し
たがって本発明はその本質から逸脱せずに多くの変更、
変形をなし得ることは当業者に明らかである。特許請求
の範囲の欄の記載により定義される本発明の範囲は、そ
の範囲内の変更、変形を包含するものとする。The above description of the present invention has been presented only with reference to particular preferred embodiments for purposes of illustration and illustration. Accordingly, the invention is subject to many modifications without departing from its essence,
It will be apparent to those skilled in the art that variations can be made. The scope of the present invention, which is defined by the description in the scope of claims, includes changes and modifications within the scope.
【００３３】[0033]
【発明の効果】本発明によれば、所望の水深の溶存酸素
の増加を図る方法および装置として、一端を空中に配置
し他端を所望の水深に配置した管を用い、水面または所
望の水深から汲み上げた水をそのまま、または酸素を溶
解して管の空中（水上）に位置する部分に排出するよう
にした。According to the present invention, as a method and apparatus for increasing dissolved oxygen at a desired water depth, a pipe having one end in the air and the other end at a desired water depth is used, and the water surface or the desired water depth is used. The water pumped up from the tube was discharged as it was, or the oxygen was dissolved and discharged into a portion of the tube located in the air (on the water).
【００３４】その結果、水頭圧で所望の水深まで酸素溶
解度の高い水を供給することができ、エネルギー（電
力）の消費を減少させることができる。また、水の密度
が１０kg／m３以内の範囲の水を汲み上げ排出るように
し、酸素の溶解を大気中の飽和溶存酸素の２倍以上とし
たので、密度差による水の上昇がなく効率良く溶存酸素
を増加させることができる。As a result, it is possible to supply water having a high oxygen solubility to a desired water depth by the head pressure, and it is possible to reduce energy (electric power) consumption. In addition, since water with a density of water within 10 kg / m 3 was pumped and discharged and the dissolution of oxygen was more than twice the saturated dissolved oxygen in the atmosphere, there was no increase in water due to the difference in density, and it was efficient. The dissolved oxygen can be increased.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の溶存酸素増加方法と装置の実施形態の
一例を示す図である。FIG. 1 is a diagram showing an example of an embodiment of a method and apparatus for increasing dissolved oxygen according to the present invention.
【図２】本発明の溶存酸素増加方法と装置の実施形態の
他の例を示す図である。FIG. 2 is a diagram showing another example of the embodiment of the method and apparatus for increasing dissolved oxygen according to the present invention.
【図３】本発明の溶存酸素増加方法と装置の実施形態の
他の例を示す図である。FIG. 3 is a diagram showing another example of the embodiment of the method and apparatus for increasing dissolved oxygen according to the present invention.
【図４】湖沼などに形成される温度躍層の説明図であ
る。FIG. 4 is an explanatory diagram of a thermocline formed in a lake or the like.
【図５】従来の溶存酸素増加方法と構成を示す説明図で
ある。FIG. 5 is an explanatory diagram showing a conventional dissolved oxygen increasing method and configuration.
【符号の説明】 １ 湖沼 ２ コンプレッサ ３ 散気板 １１ａ 排出管 １１ｂ 吸引管 ４，１２ ポンプ １２ａ，１２ｂ 配管 １３ 酸素溶解手段[Explanation of symbols] 1 lake 2 compressor 3 Air diffuser 11a discharge pipe 11b suction tube 4,12 pump 12a, 12b piping 13 Oxygen dissolution means
Claims (10)
在する水の溶存酸素の増加を図る方法において、所望の
水域から汲み上げた水を所望の水深と水上の間に設置し
た管の水上部に供給し水頭圧を用いて所望の水深に排出
することを特徴とする溶存酸素増加方法。1. A method for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., wherein water pumped from a desired water area is installed between a desired depth and above the water. A method for increasing dissolved oxygen, which comprises supplying the water to the upper part of a pipe and discharging it to a desired water depth by using a head pressure.
させ、所望の水深の貧酸素水域に水頭圧を用いて排出す
ることを特徴とする請求項１記載の溶存酸素増加方法。2. The method for increasing dissolved oxygen according to claim 1, wherein oxygen is dissolved in water pumped from a desired water area, and the dissolved oxygen is discharged to an oxygen-deficient water area having a desired water depth by using a head pressure.
させ所望の水深の貧酸素水域に水頭圧を用いて排出する
ことを特徴とする請求項１記載の溶存酸素増加方法。3. The method for increasing dissolved oxygen according to claim 1, wherein oxygen is dissolved in water pumped from the oxygen-deficient water region and the oxygen is discharged to the oxygen-deficient water region at a desired water depth by using the head pressure.
下であることを特徴とする請求項２または３記載の溶存
酸素増加方法。4. The method for increasing dissolved oxygen according to claim 2 or 3, wherein the dissolved oxygen concentration in the oxygen-deficient water region is 3 mg / l or less.
の水の密度差が1kg／m３以内の範囲の水深であることを
特徴とする請求項１〜４記載の溶存酸素増加方法。5. The method for increasing dissolved oxygen according to claim 1, wherein the difference between the density of water in the pumping area and the density of water in the discharging area is a water depth within a range of 1 kg / m 3 .
２倍以上としたことを特徴とする請求項２〜４いずれか
に記載の溶存酸素増加方法。6. The method for increasing dissolved oxygen according to any one of claims 2 to 4, wherein the dissolution of oxygen is twice or more of the saturated dissolved oxygen concentration in the atmosphere.
在する水の溶存酸素の増加を図る装置において、吸引ポ
ンプと、一端が空中に配置され他端が所望の水域に配置
された管と、からなり、前記吸引ポンプで汲み上げた水
を前記管の空中に位置する部分に排出するように構成し
たことを特徴とする溶存酸素増加装置。7. A device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., and a suction pump, one end of which is placed in the air and the other end of which is placed in a desired water area. The dissolved oxygen increasing device is configured to discharge the water pumped up by the suction pump to a portion of the pipe located in the air.
在する水の溶存酸素の増加を図る装置において、吸引ポ
ンプと、一端が空中に配置され他端が所望の水域に配置
された管と、酸素溶解手段と、からなり、前記吸引ポン
プで汲み上げた水に前記酸素溶解手段を用いて酸素を溶
解し、前記管の空中に位置する部分に排出するように構
成したことを特徴とする溶存酸素増加装置。8. A device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., wherein a suction pump and one end are arranged in the air and the other end is arranged in a desired water area. And a means for dissolving oxygen, which is configured to dissolve oxygen in the water pumped up by the suction pump by using the means for dissolving oxygen and discharge it to a portion of the pipe located in the air. Characterized dissolved oxygen increasing device.
在する水の溶存酸素の増加を図る装置において、吸引ポ
ンプと、一端が空中に配置され他端が所望の水深に配置
された吸引管および排出管と、酸素溶解手段と、からな
り、前記吸引管から吸引ポンプにより汲み上げた水に前
記酸素溶解手段を用いて酸素を溶解し、前記排出管の空
中に位置する部分に排出するように構成したことを特徴
とする溶存酸素増加装置。9. A device for increasing dissolved oxygen in water existing in an environment such as a sea, lake, river, dam, moat, etc., and a suction pump, and one end is arranged in the air and the other end is arranged at a desired water depth. A suction pipe and a discharge pipe, and an oxygen dissolving means, which dissolves oxygen in the water pumped up from the suction pipe by a suction pump and uses the oxygen dissolving means to dissolve the oxygen into a portion of the discharge pipe located in the air. An apparatus for increasing dissolved oxygen, which is configured to be discharged.
たは後段または両方に設けたことを特徴とする請求項８
または９記載の溶存酸素増加装置。10. The oxygen dissolving means is provided in a front stage, a rear stage or both of the suction pump.
Alternatively, the dissolved oxygen increasing device as described in 9 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001284780A JP2003088886A (en) | 2001-09-19 | 2001-09-19 | Method and device for increasing dissolved oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001284780A JP2003088886A (en) | 2001-09-19 | 2001-09-19 | Method and device for increasing dissolved oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003088886A true JP2003088886A (en) | 2003-03-25 |
Family
ID=19108044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001284780A Pending JP2003088886A (en) | 2001-09-19 | 2001-09-19 | Method and device for increasing dissolved oxygen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003088886A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313064A (en) * | 2004-04-28 | 2005-11-10 | Yokogawa Electric Corp | Water quality conservation system |
| WO2009063957A1 (en) * | 2007-11-12 | 2009-05-22 | Ebisu-Science, Co., Ltd. | Fine bubble diffusing apparatus and method |
| JP2010162454A (en) * | 2009-01-14 | 2010-07-29 | Kaiyo Kaihatsu Gijutsu Kenkyusho:Kk | Oligoaerobic state improving apparatus arranged in closed water area |
| JP2011194354A (en) * | 2010-03-23 | 2011-10-06 | Satoru Takamori | Apparatus for improving quality of water in dam lake, river or lake |
| CN109502736A (en) * | 2018-12-29 | 2019-03-22 | 佛山市弘峻水处理设备有限公司 | A kind of aeration system in creek biochemistry pollution treatment technology |
-
2001
- 2001-09-19 JP JP2001284780A patent/JP2003088886A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313064A (en) * | 2004-04-28 | 2005-11-10 | Yokogawa Electric Corp | Water quality conservation system |
| WO2009063957A1 (en) * | 2007-11-12 | 2009-05-22 | Ebisu-Science, Co., Ltd. | Fine bubble diffusing apparatus and method |
| JP2010162454A (en) * | 2009-01-14 | 2010-07-29 | Kaiyo Kaihatsu Gijutsu Kenkyusho:Kk | Oligoaerobic state improving apparatus arranged in closed water area |
| JP2011194354A (en) * | 2010-03-23 | 2011-10-06 | Satoru Takamori | Apparatus for improving quality of water in dam lake, river or lake |
| CN109502736A (en) * | 2018-12-29 | 2019-03-22 | 佛山市弘峻水处理设备有限公司 | A kind of aeration system in creek biochemistry pollution treatment technology |
| CN109502736B (en) * | 2018-12-29 | 2024-04-30 | 佛山市弘峻水处理设备有限公司 | Oxygenation system in river surge biochemical pollution control technology |
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