JP4488165B2 - Algae-killing and growth-inhibiting method for blue-green algae that are generated and survive in closed waters such as lakes and marine plants - Google Patents
Algae-killing and growth-inhibiting method for blue-green algae that are generated and survive in closed waters such as lakes and marine plants Download PDFInfo
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本願発明は、湖沼等閉鎖水域に発生するアオコの処理方法及び装置、特にアオコの殺藻・成長抑制方法及び装置に関するものである。 TECHNICAL FIELD The present invention relates to a method and apparatus for treating sea cucumbers generated in closed water areas such as lakes, and more particularly to a method and apparatus for controlling sea urchin algae and growth.
近年、生活排水や農業・畜産業廃水等に含まれる高ＢＯＤ、窒素、リン等により湖沼、池等の閉鎖水域の底質や水質の豊栄養化がすすみ、それを栄養源とするアオコがしばしば大量に発生している。
アオコは植物プランクトンの一種であり、ミクロキステスやアナベナに属し、その大きさは１０ミクロン前後である。アオコの急激な増殖は、魚介類を死に至らしめ、またアオコのもつ毒性が人間生活に与える影響も大きく、従って、大量に現地にて、安いコストでアオコを分解する新技術の提供が求められている。
In recent years, high BOD, nitrogen, phosphorus, etc., contained in domestic wastewater and agricultural / livestock wastewater, etc. have promoted eutrophication of the bottom and water quality of closed water areas such as lakes and ponds, and often have sea cucumbers that use them as nutrient sources. A large amount has occurred.
Aoko is a kind of phytoplankton and belongs to micro-chistes and anabena, and its size is around 10 microns. The rapid growth of sea cucumbers has led to the death of fish and shellfish, and the toxicity of sea cucumbers has a significant impact on human life. Therefore, it is necessary to provide new technologies for breaking down sea cucumbers at a low cost in large quantities locally. ing.
アオコの毒は一般に肝臓毒といわれており、いずれも複数のアミノ酸が結びついたポリペプチドとされており、アオコは富栄養化した水中での光とＣＯ2により光合成を行い、Ｏ2を排出する有利面を持っているが、大量発生すると魚類を死滅させ、またアオコを含む水を人間が摂取すると、ガンになりやすく、特に肝臓ガンになりやすいと最近の研究にて明らかになりつつある。
ミクロキステスやアナベナは、Ｐを底質からとり、空気中から、Ｎをとるのではないかと言われている。そのために、自らの比重を変化させ水中を鉛直的に移動できるとされている。
Blue venom is generally referred to as hepatotoxin, and all of them are polypeptides with multiple amino acids linked to each other, and the blue sea lion performs photosynthesis with light and CO 2 in eutrophied water and emits O 2 . Although it has an advantage, recent studies have shown that if it occurs in large quantities, fish will be killed, and if humans ingest water that contains blue sea urchins, they are more likely to get cancer, especially liver cancer.
It is said that microchistes and anabenas take P from the bottom sediment and take N from the air. Therefore, it is said that it can move vertically underwater by changing its specific gravity.
従来のアオコの分解処理方法として、以下の方法があった。
１） 底質の土砂を浚渫し、アオコを含む土砂を陸上にあげ、土砂を処理する。
２） ゼオライト、木炭等によりアオコを吸着させ除去する方法。
３） フィルターにて濾過し、アオコを除去する。
４） アオコを含む水を撹拌処理する。
５） アオコを含む水に紫外線を照射する。
等の方法が用いられている。
As a conventional method for decomposing blue sea cucumber, there has been the following method.
1) Sediment sediment is dredged, and the sediment containing blue sea urchin is put on land to treat the sediment.
2) A method of adsorbing and removing blue-green algae with zeolite, charcoal or the like.
3) Filter with a filter to remove the water.
4) Stir the water containing the water.
5) Irradiate water containing blue-green water with ultraviolet rays.
Etc. are used.
しかしながら、上記１）の方法については、かなりの効果があるが、高い処理コストがかかり浚渫時にアオコが拡散しやすく完全な処理にはならない。
２）については、装置が簡単であり、環境にやさしい方法であるが、処理量が少なく、アオコの吸着にばらつきがある。
３）はアオコの大きさが１０ミクロン位であるので、濾過が困難であり、濾過に目詰まりがおこり現実的に処理が不可能である。
４）については、底質の土砂をまきあげかえってアオコの発生を助けることになる。
５）については、確実にアオコの細胞破壊ができるが、比較的コストが高くなり、大量処理が困難である。
等の問題があった。
以上のように、各処理方法には一長一短があり、アオコの大量増殖には対応できる処理方法とはなっていない。
However, the above method 1) has a considerable effect, but the processing cost is high, and the watermelon is liable to diffuse at the time of drought, and the complete processing is not achieved.
Regarding 2), the apparatus is simple and environmentally friendly, but the amount of processing is small, and there is a variation in the adsorption of the sea bream.
In the case of 3), the size of the watermelon is about 10 microns, so it is difficult to filter, clogging occurs in the filtration, and it is impossible to process practically.
For 4), the bottom sediment will be replaced to help the generation of blue sea bream.
As for 5), the cells of the sea cucumber can be reliably destroyed, but the cost is relatively high and the mass treatment is difficult.
There was a problem such as.
As described above, each processing method has advantages and disadvantages, and it is not a processing method that can cope with the large-scale growth of blue sea bream.
そこで、本発明者は鋭意研究の結果、下記の構成により上記課題を解決した。
（１）生活排水や植物の肥料などを含んだ雨水が流入する湖沼等の閉鎖水域中で発生・生存するアオコの殺藻・成長抑制方法において、前記閉鎖水域から取水された被処理水にオゾンを添加混合した後、更に過酸化水素を添加混合し、かつ同時に超音波を照射することを特徴とする湖沼等閉鎖水域に発生・生存するアオコの殺藻・成長抑制方法。
（２）超音波照射と共に、紫外線を被処理水に照射することを特徴とする前記（１）記載の湖沼等閉鎖水域に発生・生存するアオコの殺藻・成長抑制方法。
（３）被処理水に紫外線を照射することにより発生する活性酸素が、ヒドロキシラジカルであることを特徴とする前記（２）記載の湖沼等閉鎖水域に発生・生存するアオコの殺藻・成長抑制方法。
（４）被処理水に超音波を照射することによるキャビテーション効果でアオコを殺藻・成長抑制することを特徴とする前記（１）又は（２）記載の湖沼等閉鎖水域に発生・生存するアオコの殺藻・成長抑制方法。
（５）生活排水や植物の肥料などを含んだ雨水が流入する湖沼等の閉鎖水域中で発生・生存するアオコの殺藻・成長抑制装置において、閉鎖水域から取水される被処理水を給送するための管路と、その途中に設けられた前記被処理水にオゾンを添加混合するオゾン供給装置、オゾンが添加混合された被処理水に過酸化水素を添加混合する過酸化水素供給装置（４）とオゾン及び過酸化水素が添加混合された被処理水に超音波を照射する超音波発振子、及び処理済み水を閉鎖水域へ返送するための管路とを備えてなることを特徴とする湖沼等の閉鎖水域中で発生・生存するアオコの殺藻・成長抑制装置。
（６）被処理水を給送するための管路の途中に、オゾン及び過酸化水素が添加混合された被処理水に紫外線を照射する紫外線照射装置を設けてなることを特徴とする前記（５）記載の湖沼等閉鎖水域に発生・生存するアオコの殺藻・成長抑制装置。
Therefore, as a result of intensive studies, the present inventor has solved the above problems with the following configuration.
(1) domestic wastewater and the algicidal and growth inhibition method of Microcystis rainwater containing fertilizer is produced, survive in a closed water area lakes such as flowing of a plant, the water to be treated is water collected by said closed water area or al A method for inhibiting alga killing and growth of sea cucumbers that are generated and survive in closed water areas such as lakes, wherein ozone is added to and mixed, hydrogen peroxide is further added and mixed, and ultrasonic waves are simultaneously irradiated.
(2) The method for inhibiting algal killing and growth of sea cucumbers generated and alive in closed water areas such as lakes and marshes according to (1), wherein ultraviolet rays are irradiated to the water to be treated together with ultrasonic irradiation.
(3) The active oxygen generated by irradiating the water to be treated with ultraviolet rays is a hydroxy radical, and the algaecidal / growth inhibition of the sea bream generated and alive in a closed water area such as a lake as described in (2) above Method.
(4) The sea cucumber that occurs and survives in closed water areas such as lakes and marshes as described in (1) or (2) above, wherein the sea urchin is killed and inhibited by a cavitation effect by irradiating the water to be treated with ultrasonic waves Of alga killing and growth control.
(5) Feeding treated water taken from the closed water area in the algae killing / growth suppression device that is generated and survives in the closed water area such as lakes and marshes where rainwater containing domestic wastewater and plant fertilizer flows. conduit and, along the way to the ozone supply device for mixing adding ozone to the water to be treated is provided, the hydrogen peroxide supply apparatus for mixing hydrogen peroxide to water to be treated ozone is added and mixed for (4) and an ultrasonic oscillator for irradiating the water to be treated with ozone and hydrogen peroxide added and mixed , and a pipe for returning the treated water to the closed water area. The algae-killing and growth-inhibiting device that is generated and survives in closed waters such as lakes.
(6) in the middle of the conduit for feeding water to be treated, before, characterized by comprising providing the ultraviolet irradiation apparatus for ultraviolet morphism light of the water to be treated ozone and hydrogen peroxide was added and mixed serial (5) algicidal and growth suppression device bloom generated, survival lakes such closure waters according.
本発明によれば、簡単な装置構成により、閉鎖水域のアオコを殆ど完全に殺藻でき、かつアオコの成長を抑制することができる。 ADVANTAGE OF THE INVENTION According to this invention, with a simple apparatus structure, the algae of a closed water area can be killed almost completely, and the growth of a parakeet can be suppressed.
図１は本発明の要部概説図を示し、また図２は被処理水の処理システムの概説図を示し、さらに図３は被処理水の処理工程図を示す。
まず、図１において、湖沼等閉鎖水域の上層から取水されたアオコを多量に含み、かつ後述のオゾン添加及び過酸化水素添加済みの被処理水１ａが管路２の左側から移送されてくる。すると、合成樹脂製の管壁２ａの外周に取り付けられた多数の超音波発振子５、・・から超音波が管路２内の被処理水１ａに照射され、管路２の右側からアオコが殺藻・成長抑制された処理済み水１ｂが導出される。
この際、超音波の照射を受けて被処理水１ａ中にキャビテーションが生じ、オゾン及び過酸化水素ガスによるラジカル反応による酸化とキャビテーションによる衝撃波によってアオコの成長体や未成長体が酸化・破壊され、殺藻・成長抑制される。
FIG. 1 shows a schematic diagram of the main part of the present invention, FIG. 2 shows a schematic diagram of a treatment system for treated water, and FIG. 3 shows a treatment process diagram of treated water.
First, in FIG. 1, a large amount of saw contains a water-bloom, which is intake from the top of the lake or the like closed water areas, and ozone addition and the addition of hydrogen peroxide pre-treatment water 1a described later come transferred from the left side of the conduit 2 . Then, ultrasonic waves are applied to the water to be treated 1a in the pipe line 2 from a large number of ultrasonic oscillators 5 attached to the outer periphery of the pipe wall 2a made of synthetic resin. The treated water 1b whose algaecide / growth is suppressed is derived.
At this time, cavitation occurs in the water to be treated 1a upon irradiation with ultrasonic waves, and the growth body and ungrown body of blue sea urchin are oxidized and destroyed by oxidation by radical reaction with ozone and hydrogen peroxide gas and shock wave by cavitation, Algae killing and growth suppression
本発明により閉鎖水域のアオコを現場において殺藻・成長抑制するには、例えば図２に示す処理システムを採用する。
まず、湖沼等閉鎖水域Ｗから管路２に被処理水１ａが送給される。管路２の途中前方部には、送水ポンプＰ１が設けられ、次いでオゾン供給装置３、過酸化水素添加装置４により、オゾン及び過酸化水素が管路２内の被処理水１ａに各々添加・混合される。また、管路２の途中の管壁２ａの外周に取り付けられた超音波発振子５から超音波が発振され、被処理水１ａに照射される。
超音波照射処理済み水１ｂは、第１アオコ分解沈殿槽６ａ、第２アオコ分解沈殿槽６ｂへ移送されて、アオコが完全に分解され、殺藻・成長抑制され、最後に第２ポンプＰ２を経由して、湖沼等閉鎖水域Ｗへ返送される。
以上を繰り返すことにより、湖沼等閉鎖水域Ｗからアオコが除去され閉鎖水域が浄化される。
なお、以上の工程で採用された超音波発振装置の仕様は表１の通りである。
In order to suppress algal killing / growth in a closed water area according to the present invention, for example, a treatment system shown in FIG. 2 is employed.
First, the to-be-treated water 1a is fed from the closed water area W such as a lake to the pipeline 2. A water pump P1 is provided in the front part of the pipeline 2 and then ozone and hydrogen peroxide are respectively added to the treated water 1a in the pipeline 2 by the ozone supply device 3 and the hydrogen peroxide addition device 4. Mixed. Moreover, an ultrasonic wave is oscillated from the ultrasonic oscillator 5 attached to the outer periphery of the pipe wall 2a in the middle of the pipe line 2, and is irradiated to the treated water 1a.
The ultrasonic irradiation-treated water 1b is transferred to the first blue-saw decomposition settling tank 6a and the second blue-saw decomposition settling tank 6b, the blue-spotted water is completely decomposed, the algaecide / growth is suppressed, and finally the second pump P2 is turned on. It is returned to the closed water area W such as a lake.
By repeating the above, the sea cucumber is removed from the closed water area W such as a lake and the closed water area is purified.
Table 1 shows the specifications of the ultrasonic oscillator employed in the above steps.
また、上記において超音波の照射は、超音波発振子１０個をステンレス製角パイプに取付けて行った。その径が３０ｃｍの角パイプからなる管路中に一定の流量で被処理水を流すと、角パイプ中を通過して行く時に、キャビテーションにより、アオコは振動により分解される。
角パイプからなる管路中の被処理水の流量及び処理量等は表２に示すとおりである。
In the above, ultrasonic irradiation was performed by attaching 10 ultrasonic oscillators to a stainless steel square pipe. When water to be treated is flowed at a constant flow rate in a pipe made of a square pipe having a diameter of 30 cm, the sea cucumber is decomposed by vibration by cavitation as it passes through the square pipe.
Table 2 shows the flow rate and amount of water to be treated in the pipe line composed of square pipes.
以上により閉鎖水域のアオコを処理すると、アオコは完全に分解・殺藻され、その後は何も残存しなかった。分解直後は、分解したアオコの死骸が下に沈殿するが、２日後には全ての沈殿物もなくなってしまい、透明な液体となっていた。
処理コストは、３７円／ｍ3程度であり、従来法に比して非常に低コストなものである。
なお、本発明においては、Ｏ3を含んだ水にＨ2Ｏ2の過酸化水素を少量添加することによりＯのＯＨ（ヒドロキシラジカル）への変化及びキャビテーション効果が大幅に促進され、アオコの殺藻・成長抑制が良好に達成されるものである。
As described above, when treated with water in the closed water area, the water was completely decomposed and algae killed, and nothing remained after that. Immediately after the decomposition, the decomposed green carcass settled down, but after 2 days, all of the precipitate disappeared and became a transparent liquid.
The processing cost is about 37 yen / m 3, which is very low compared with the conventional method.
In the present invention, by adding a small amount of hydrogen peroxide of H 2 O 2 to water containing O 3 , the change of O to OH (hydroxy radical) and the cavitation effect are greatly promoted, and the killing of blue sea urchins. Algae / growth suppression is achieved well.
次に、図３の処理工程図によって、湖沼等閉鎖水域から取水された被処理水１ａに本願発明の殺藻．生長抑制方法を適用する一例の工程を説明する。
すなわち、下記ａ〜ｊ工程を採用することで、閉鎖水域Ｗの上層から取水されたアオコを含む被処理水１ａを浄化して、閉鎖水域Ｗに返送して閉鎖水域Ｗを清浄化することができる。
ａ 閉鎖水域中の被処理水のクロロフィルａ他を分析する。
ｂ 閉鎖水域から被処理水をポンプによりくみ上げる。
ｃ オゾナイザーによるオゾン溶解水を被処理水に添加混合する。
ｄ 過酸化水素を被処理水に添加混合する。
ｅ 被処理水に超音波を照射する。
ｆ 被処理水に紫外線を照射する。
ｇ アオコの細胞が分解される。
ｈ クロロフィルの分析をする。
ｉ アオコの細胞分解を確認する。
ｊ 処理済み水をもとの閉鎖水域へ戻す。
なお、上記においてｆ工程は必ずしも必要ではない。
また、上記において処理対象のアオコの緑色度（クロロフィルａ）により、オゾン水添加量と濃度、Ｈ2Ｏ2の添加量、紫外線照射時間、超音波放射の周波数と時間等、処理の組み合わせも含めて決定される。
Next, according to the treatment process diagram of FIG. 3, the algaecide of the present invention is applied to the treated water 1 a taken from a closed water area such as a lake . An example process for applying the growth suppression method will be described.
That is, by adopting the following a~j process, to purify the water to be treated 1a comprising A Oko which is intake from the top of the closed chain water W, to clean the closed water area W and return to a closed water area W be able to.
a. Analyze chlorophyll a etc. of water to be treated in the closed water area.
b Pump up the treated water from the closed water area.
c Add ozone- mixed water from the ozonizer to the water to be treated .
d Add hydrogen peroxide to the water to be treated and mix .
e Irradiate the water to be treated with ultrasonic waves.
f Irradiate the water to be treated with ultraviolet rays.
g Blue-tailed cells are broken down.
h Analyze chlorophyll.
i Check for cell degradation of the sea lions.
j Return treated water to its original closed water area.
In the above, step f is not always necessary.
In addition, depending on the green level (chlorophyll a) of the blue-green to be treated in the above, the combination of treatments such as ozone water addition amount and concentration, H 2 O 2 addition amount, ultraviolet irradiation time, frequency and time of ultrasonic radiation are also included. Determined.
次に、本願発明におけるオゾン、過酸化水素、超音波の挙動、作用等について説明する。
（１）オゾンはＯ3であり、酸素原子３個が化学的に結合した物質であり、原子同士を結びつけている結合エネルギーは２４ｋｃａｌ／ｍｏｌであり、窒素の２２２ｋｃａｌ／ｍｏｌや酸素の１１７ｋｃａｌ／ｍｏｌよりも小さく、１．５ｅｖ（電子ボルト）のエネルギーを与えてやれば解離が可能であり、従って、非常に分解しやすい性質をもっている。
分解すれば、きわめて反応性の高い酸素原子が生まれる。この酸素原子は活性酸素の一種であり、強力な酸化力を有す。
Ｏ2にくらべ、Ｏは、１０35倍程度の酸化力を有するとされている。
（２）オゾンの発生装置は、無声放電方式により現在では、経済的に高濃度のオゾンの発生が可能になり、水に溶けるため現在水の浄化システムとして広く使われるようになってきている。例えば、処理水量１００，０００ｍ3／日、オゾン注入率３ｇ／ｍ3の場合、オゾン必要量は処理水量×オゾン注入率で決められるので、１００，０００ｍ3／日×３ｇ／ｍ3＝３００ｋｇ／日→１２．５ｋｇ／Ｈとなり１０万ｍ3の処理水を処理するのに、１３ｋｇ／Ｈのオゾンにより一般的に処理が可能となり、装置も大容量タイプから小容量タイプまで広く製作されている。
（３）水の中に溶けこんだＯ3は、結合エネルギーが小さく、酸素原子となり水と反応してＯＨ（ヒドロキシラジカル）となり、ＯＨの反応速度定数はＯ2に比べ、１０38程度になるとされている。従って、強力な酸化力を持ち合わせている。
（４）このＯ3を含んだ水にＨ2Ｏ2の過酸化水素を少量添加することによりＯのＯＨへの変化が促進される。
（５）オゾンに波長３１０ｎｍ以下の紫外線を照射すると酸素分子の解離に有効ではない。
解離エネルギーに必要な紫外線の波長は１３５〜１７５ｎｍと、１７５〜２４２ｎｍである。
紫外線の光の中では、これらの波長は短い方に位置する。
波長が短いということはエネルギーが高いということである。したがって、ここに示している波長の範囲の紫外線をオゾンとＨ2Ｏ2が溶けこんだ水に照射することが好ましい。
以上述べたようにアオコの細胞破壊はオゾンと過酸化水素の併用による分解及び更に紫外線照射を加えることにより確実にアオコの細胞破壊を可能となる。
Next, the behavior and action of ozone, hydrogen peroxide, and ultrasonic waves in the present invention will be described.
(1) Ozone is O 3 , a substance in which three oxygen atoms are chemically bonded, the bonding energy for bonding atoms is 24 kcal / mol, 222 kcal / mol of nitrogen and 117 kcal / mol of oxygen If it is smaller than 1.5 ev (electron volt), dissociation is possible, and therefore it has a property of being easily decomposed.
When decomposed, highly reactive oxygen atoms are born. This oxygen atom is a kind of active oxygen and has a strong oxidizing power.
Compared to O 2 , O is said to have an oxidizing power of about 10 35 times.
(2) Ozone generators are now widely used as water purification systems because they are economically capable of generating high-concentration ozone by the silent discharge method and dissolve in water. For example, the process water 100,000 m 3 / day in the case of ozone injection rate 3 g / m 3, since ozone required amount is determined by the amount of water treated × ozone injection rate, 100,000 m 3 / day × 3g / m 3 = 300kg / Sun → 12.5kg / H and 100,000m 3 of treated water can be treated with ozone of 13kg / H, and equipment is widely manufactured from large capacity type to small capacity type. .
(3) O 3 dissolved in water has a small binding energy, becomes an oxygen atom, reacts with water to become OH (hydroxy radical), and the reaction rate constant of OH is about 10 38 compared to O 2. Has been. Therefore, it has a strong oxidizing power.
(4) By adding a small amount of hydrogen peroxide of H 2 O 2 to the water containing O 3 , the change of O to OH is promoted.
(5) When ozone is irradiated with ultraviolet rays having a wavelength of 310 nm or less, it is not effective for dissociation of oxygen molecules.
The wavelengths of ultraviolet rays required for dissociation energy are 135 to 175 nm and 175 to 242 nm.
In the ultraviolet light, these wavelengths are located on the shorter side.
A short wavelength means high energy. Accordingly, it is preferable to irradiate water in which ozone and H 2 O 2 are dissolved with ultraviolet rays in the wavelength range shown here.
As described above, aquatic cell destruction can be reliably performed by decomposing by combining ozone and hydrogen peroxide and further applying ultraviolet irradiation.
（６）超音波は一般に人間の耳に聞こえないほど周波数の高い音をいい、２０ヘルツ以下の音と２０キロヘルツ以上の音を指し、気体でも液体でも固体によく伝搬する。
そこで超音波は小さな振動変化でも高い音圧と強力なパワー密度をもつことである。
液体中に超音波を放射するとキャビテーション（空洞現象）を容易につくることができる。例えば、５０キロヘルツ（振動変異０．１６ミクロン）の超音波を水中に放射すると簡単に水中での音圧は１気圧以上になる。
超音波の放射は水中に正圧と負圧の激しい繰り返しにより媒質が引きちぎられ空洞が発生する現象をキャビテーションと呼んでいるが、正圧は負圧の倍以上となり、気化した小さな泡がつぶされて強い衝撃波を伴う高圧（数百気圧〜数千気圧）が発生する。
キャビテーションは、酸化、粒子の破壊、撹拌、発熱が生じ乳化や分散などがおこるが、アオコはこれらの力に耐えきれず分解する。
以上述べたように、請求項記載の方法によりアオコの殺藻・成長抑制が可能となる。
一般にアオコを含む湖沼や池の水は大量であるので、経済的でなければならないが本技術発明は十分なコスト競争力を有していると考えられる。
(6) Ultrasound generally refers to sound with a frequency that is so high that it cannot be heard by human ears. It refers to sound of 20 hertz or less and sound of 20 kilohertz or more.
Therefore, ultrasonic waves have high sound pressure and powerful power density even with small vibration changes.
Cavitation can be easily created by radiating ultrasonic waves into a liquid. For example, if an ultrasonic wave of 50 kilohertz (vibration variation 0.16 micron) is emitted into water, the sound pressure in water easily becomes 1 atm or more.
Ultrasonic radiation is called cavitation, which is a phenomenon in which a medium is torn by vigorous repetition of positive pressure and negative pressure in water, and cavitation is generated, but the positive pressure is more than double the negative pressure and small vaporized bubbles are crushed. High pressure (several hundred to several thousand atmospheres) with strong shock waves is generated.
Cavitation causes oxidation, particle breakage, agitation, heat generation, and emulsification and dispersion. Blue sea urchin cannot withstand these forces and decomposes.
As described above, the alga killing and growth inhibition of the sea cucumber can be achieved by the method described in the claims.
In general, since the water in lakes and ponds including auko is large, it must be economical, but the present invention is considered to have sufficient cost competitiveness.
１ａ：被処理水、
１ｂ：アオコが殺藻・成長抑制された処理済み水、
２：管路、
２ａ：管壁、
３：オゾン供給装置、
４：過酸化水素添加装置、
５：超音波発振子、
６ａ：第１アオコ分解沈殿槽、
６ｂ：第２アオコ分解沈殿槽、
Ｗ：湖沼等閉鎖水域、
Ｐ１：第１ポンプ、
Ｐ２：第２ポンプ、
1 a : treated water,
1b: treated water in which blue-green algae are algae-killed
2: pipeline,
2a: pipe wall,
3: Ozone supply device,
4: Hydrogen peroxide addition device,
5: Ultrasonic oscillator,
6a: 1st Aoko decomposition settling tank,
6b: the second blue-floor decomposition settling tank,
W: Lakes and other closed water areas,
P1: first pump,
P2: Second pump,
Claims (6)
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| CN109911995A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of blue algae resource method having both algae toxin removing and algae solution high-efficiency dehydration |
| CN109912087A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of detoxification of cyanobacteria, dehydration and drying method |
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| CN101830538A (en) * | 2010-04-21 | 2010-09-15 | 苏州市华兴天和科技有限公司 | Omnidirectional ultrasonic algae-removing instrument |
| CN102642976A (en) * | 2012-04-05 | 2012-08-22 | 杭州泰佳科技有限公司 | Water treatment system and water treatment method |
| CN108358273A (en) * | 2017-12-27 | 2018-08-03 | 上海汀滢环保科技有限公司 | A kind of processing unit and its processing method of cyanobacterial bloom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109911995A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of blue algae resource method having both algae toxin removing and algae solution high-efficiency dehydration |
| CN109912087A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of detoxification of cyanobacteria, dehydration and drying method |
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