JPH03109990A - Method for purifying water - Google Patents

Method for purifying water

Info

Publication number
JPH03109990A
JPH03109990A JP24704589A JP24704589A JPH03109990A JP H03109990 A JPH03109990 A JP H03109990A JP 24704589 A JP24704589 A JP 24704589A JP 24704589 A JP24704589 A JP 24704589A JP H03109990 A JPH03109990 A JP H03109990A
Authority
JP
Japan
Prior art keywords
hydrogen peroxide
water
phytoplankton
carrier
fibrous product
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
Application number
JP24704589A
Other languages
Japanese (ja)
Inventor
Toshihiko Jodai
城代 利彦
Naoki Morita
直樹 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Onoda Autoclaved Light Weight Concrete Co Ltd
Original Assignee
Onoda Autoclaved Light Weight Concrete Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Onoda Autoclaved Light Weight Concrete Co Ltd filed Critical Onoda Autoclaved Light Weight Concrete Co Ltd
Priority to JP24704589A priority Critical patent/JPH03109990A/en
Publication of JPH03109990A publication Critical patent/JPH03109990A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To disperse hydrogen peroxide in the vicinity of a water surface and to remove only the phytoplankton without killing fishes, etc., by bringing the water contaminated with phytoplankton, etc., into contact with a fibrous product carrying hydrogen peroxide. CONSTITUTION:Hydrogen peroxide is absorbed in the void of a fibrous product to form a hydrogen peroxide carrier. When the hydrogen peroxide carrier is placed in the water contaminated with phytoplankton, etc., hydrogen peroxide is gradually liberated and allowed to react with the plankton, suspended dust and especially metal oxides in water to generate active oxygen. The phytoplankton in the red tide is removed by the generated active oxygen. The hydrogen peroxide, etc., are continuously removed in the course of the reaction. The fibrous product carrying hydrogen peroxide is suspended at the depth of water where the phytoplankton lives most densely.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はプランクトンが異常発生した海水く以下、単に
赤潮と称する)や淡水中のアオコ等のプランクトンに対
して過酸化水素を使用して駆除する水の浄化方法に関す
るものである。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention uses hydrogen peroxide to exterminate plankton such as blue-green algae in seawater where plankton has abnormally occurred (hereinafter simply referred to as red tide) and freshwater. This relates to a method for purifying water.

し従来の技術及び発明が解決しようとする課題]従来、
海水中の赤潮や淡水中のアオコ等を駆除する方法として
過酸化水素を使用する方法が公知である(特開昭55−
1.41142号公報)。
Problems to be solved by conventional techniques and inventions] Conventionally,
A method of using hydrogen peroxide is known as a method for exterminating red tide in seawater and blue-green algae in freshwater (Japanese Unexamined Patent Publication No. 1983-1999).
1.41142).

この公知例には過酸化水素をそのまま、又は液体の形で
使用する方法が明記されている。
This known example specifies a method of using hydrogen peroxide as it is or in liquid form.

ところが、この方法では過酸化水素の比重は水の比重よ
り高いので、過酸化水素を水中に投入した際、−時的に
は過酸化水素が水中のブランク1ヘンや浮遊塵埃、特に
金属の酸化物と反応してプランクトン駆除効果を発揮す
るが、すぐに水底に沈んでしまい、赤潮等の植物プラン
クトンの生息密度の最も高い水域の下層で漂うこととな
り、過酸化水素を有効に利用するのが困難であるという
問題があった。
However, in this method, the specific gravity of hydrogen peroxide is higher than the specific gravity of water, so when hydrogen peroxide is added to the water, sometimes the hydrogen peroxide may be mixed with blanks or floating dust in the water, especially oxidized metals. It reacts with substances and exerts a plankton extermination effect, but it quickly sinks to the bottom of the water and floats in the lower layers of waters where phytoplankton density is highest, such as red tide, so it is difficult to use hydrogen peroxide effectively. The problem was that it was difficult.

また、前記公知例には過酸化水素を担持体に担持させた
状態で水中に投入する方法が記載されているが、具体的
にいかなる担持体が使用されるか開示されていない。
Furthermore, although the above-mentioned known example describes a method in which hydrogen peroxide is introduced into water in a state in which it is carried on a carrier, it does not specifically disclose what kind of carrier is used.

そこで、本出願人等は過酸化水素の分解もしくは反応持
続時間が長く、過酸化水素の水中への分散を良くする水
の浄化方法として過酸化水素を珪酸カルシウムに担持さ
せた状態で水と接触させる方法を提案した(先行技術)
。この方法は初期の目的を達成するが、さらに次ぎの点
において改良の余地があることが判明した。
Therefore, the present applicant et al. proposed a water purification method that would improve the decomposition or reaction duration of hydrogen peroxide and improve the dispersion of hydrogen peroxide in water by contacting water with hydrogen peroxide supported on calcium silicate. proposed a method to do so (prior art)
. Although this method achieves the initial objectives, it has been found that there is room for further improvement in the following points.

(1−〉第1に、海のように広い水域において前記担持
体を一旦散布したら、浄化能力が残存していてもその担
持体を他の場所に移動させて利用することは実質上無理
である。
(1-> First, once the carrier is dispersed in a wide body of water such as the ocean, it is virtually impossible to move the carrier to another location and use it, even if it still has purification ability. be.

く2)第2に、海底に沈降した担持体を回収することが
困難である。
2) Secondly, it is difficult to recover the carriers that have settled to the seabed.

そこで、本発明者らは前記問題の解消を目的に鋭意検討
したところ、過酸化水素を布等の繊維製品に担持させて
使用すればよいと言う事実を見出だし、本発明を完成し
な。
Therefore, the inventors of the present invention conducted extensive studies with the aim of solving the above-mentioned problem, and found that hydrogen peroxide could be used by supporting it on textile products such as cloth, and completed the present invention.

[課題を解決するための手段] 本発明は過酸化水素を担持させた繊維製品を植物プラン
クトン等に汚染された水と接触させるという手段を採用
する。
[Means for Solving the Problems] The present invention employs a method of bringing a textile product carrying hydrogen peroxide into contact with water contaminated with phytoplankton or the like.

[作用] 本発明においては過酸化水素の担持体として繊維製品を
採用しているので、過酸化水素が前記繊維製品の空隙に
吸収される。過酸化水素を吸収した前記繊維製品を汚染
された水の中に投入すると、過酸化水素が徐々に放出さ
れ、水中のプランクトンや浮遊塵埃、特に金属の酸化物
と反応して活性酸素を発生し、発生した活性酸素により
赤潮等の植物プランクトンを駆除することができる。こ
の過程において前記過酸化水素の溶出が徐々に進むので
、その結果、プランクトン等の駆除が持続することにな
る。
[Function] In the present invention, since a textile product is employed as a carrier for hydrogen peroxide, hydrogen peroxide is absorbed into the voids of the textile product. When the textile product that has absorbed hydrogen peroxide is put into contaminated water, hydrogen peroxide is gradually released and reacts with plankton and floating dust in the water, especially metal oxides, to generate active oxygen. The generated active oxygen can exterminate phytoplankton such as red tide. During this process, the elution of hydrogen peroxide proceeds gradually, resulting in continued extermination of plankton and the like.

また、前記繊維製品は、赤潮等の植物プランクトンの生
息密度の最も高い水深に浮遊させることができるだけで
くなく、ロープ等で繋いで船て刃っ張りながら移動させ
ることもできる。
In addition, the textile product can not only be suspended at the depth of water where phytoplankton inhabits the highest density, such as red tide, but also can be moved while being tied with a rope or the like on a boat.

また、前記繊維製品は植物プランクトンの駆除後は容易
に水域から取り除くことができる。
Furthermore, the textile product can be easily removed from water bodies after phytoplankton has been exterminated.

[実施例] 次に、本発明の一実施例を説明する。[Example] Next, one embodiment of the present invention will be described.

縦横的5mの広さの合成繊維製のシートに過酸化水素(
濃度;6重量%)を20.11!担持させた。
Hydrogen peroxide (
Concentration; 6% by weight) is 20.11! carried it.

この過酸化水素の担持体を、アオコの発生している淡水
の水面に広げるように投入し、アオコの色調を観察しな
。その結果、前記担持体は暫くの量水面に浮遊し、過酸
化水素を徐々に放出しながら、多くの活性酸素を発生さ
せた。同時にアオコの緑色はシートを中心として徐々に
白色化していっな。その後シートを取り上げたらその位
置の水質の透明度が向上していた。水を採取して、水中
の植物プランクトンを顕微鏡観察したら、生存している
プランクトンが全く認められなかった。
Spread this hydrogen peroxide carrier on the surface of fresh water where algal blooms are occurring, and observe the color tone of the algal blooms. As a result, the carrier floated on the water surface for a while, gradually releasing hydrogen peroxide and generating a large amount of active oxygen. At the same time, the green color of the blue-green algae gradually turns white, centering on the sheet. After that, when I picked up the sheet, I found that the water quality at that location had improved in clarity. When the water was collected and the phytoplankton in the water was observed under a microscope, no living plankton was observed.

本発明は前記実施例に限定されず、例えば、布状の繊維
製品を丸めて過酸化水素の担持体として使用しても、同
一の効果が得られる。また、繊維製品をロープ等で繋ぎ
、船等で移動すれば駆除範囲を広げる事もできる。
The present invention is not limited to the above-described embodiments; for example, the same effect can be obtained even if a cloth-like textile product is rolled up and used as a carrier for hydrogen peroxide. Additionally, the range of extermination can be expanded by tying textile products together with ropes and transporting them by boat.

[発明の効果] 以」二詳述したように、本発明は過酸化水素を赤潮等の
植物プランクトンの生息密度の最も高い、水面に近い水
域に効率良く分散させ、その結果、魚類等を殺すこと無
く、水の汚染源となる植物プランクトンだけを駆除する
という優れた効果を発揮する。また海のように広い水域
において一旦使用した担持体であってもなお浄化能力が
残存している場合その担持体を他の場所に移動させて水
の浄化に再度利用することができるだけでなく、海底に
沈降さぜることなく担持体を回収することができるとい
う効果がある。
[Effects of the Invention] As described in detail below, the present invention efficiently disperses hydrogen peroxide into waters near the water surface where phytoplankton inhabits the highest density, such as red tide, and as a result, kills fish, etc. It is highly effective in eliminating only phytoplankton, which is a source of water pollution. Furthermore, even if a carrier has been used once in a wide body of water such as the ocean, if it still has purification ability, it can not only be moved to another location and used again for water purification. This has the effect that the carrier can be recovered without settling on the seabed.

Claims (1)

【特許請求の範囲】[Claims] 過酸化水素を担持させた繊維製品を植物プランクトン等
に汚染された水と接触させることを特徴とする水の浄化
方法。
A water purification method characterized by bringing a textile product carrying hydrogen peroxide into contact with water contaminated with phytoplankton or the like.
JP24704589A 1989-09-22 1989-09-22 Method for purifying water Pending JPH03109990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24704589A JPH03109990A (en) 1989-09-22 1989-09-22 Method for purifying water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24704589A JPH03109990A (en) 1989-09-22 1989-09-22 Method for purifying water

Publications (1)

Publication Number Publication Date
JPH03109990A true JPH03109990A (en) 1991-05-09

Family

ID=17157594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24704589A Pending JPH03109990A (en) 1989-09-22 1989-09-22 Method for purifying water

Country Status (1)

Country Link
JP (1) JPH03109990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016530229A (en) * 2013-07-04 2016-09-29 シャケッド マイクロウビアル ソリューションズ リミテッド How to control waterborne pests

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016530229A (en) * 2013-07-04 2016-09-29 シャケッド マイクロウビアル ソリューションズ リミテッド How to control waterborne pests
US10092005B2 (en) 2013-07-04 2018-10-09 Sha'ked Microbial Solutions, Ltd. Method of controlling water surface inhabiting pests
US10729138B2 (en) 2013-07-04 2020-08-04 Sha'ked Microbial Solutions Ltd. Method of controlling water surface inhabiting pests
US11019823B2 (en) 2013-07-04 2021-06-01 Sha'ked Microbial Solutions Ltd. Method of controlling water surface inhabiting pests

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