JPH0368493A - Method for purifying water - Google Patents
Method for purifying waterInfo
- Publication number
- JPH0368493A JPH0368493A JP20525889A JP20525889A JPH0368493A JP H0368493 A JPH0368493 A JP H0368493A JP 20525889 A JP20525889 A JP 20525889A JP 20525889 A JP20525889 A JP 20525889A JP H0368493 A JPH0368493 A JP H0368493A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- hydrogen peroxide
- water
- phytoplankton
- calcium silicate
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 11
- 239000000378 calcium silicate Substances 0.000 claims abstract description 11
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 210000003000 inclusion body Anatomy 0.000 description 5
- 241000192700 Cyanobacteria Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000031872 Body Remains Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
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（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] [Industrial Application Field] 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.
［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−
１４１１４２号公報〉。[Prior art and problems to be solved by the invention] 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).
Publication No. 141142〉.
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を水中に投入すると
、過酸化水素が直ちに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プランクトン駆除効果を発
揮するが、その効果は水面近い部分にあり、かつ効果の
持続時間が短いという問題があった。However, with this method, when hydrogen peroxide is added to water, it immediately destroys plankton, floating dust, and other particles in the water.
In particular, it reacts with metal oxides to exterminate plankton, but the problem is that it is effective near the water surface and the duration of the effect is short.
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水和物に
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
ぎに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. developed a water purification method in which the decomposition or reaction duration of hydrogen peroxide is long and the dispersion of hydrogen peroxide in water is improved, in which hydrogen peroxide is supported on calcium silicate hydrate. proposed a method of contacting with water (prior art). Although this method achieves its initial objectives, it has been found that there is still room for improvement in the following respects.
（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. .
（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) Second, 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、前記担持体を特定の容器に充填すればよい
と言う事実を見出だし、本発明を完成した。Therefore, the inventors of the present invention conducted extensive studies with the aim of solving the above-mentioned problem, and found that it is sufficient to fill a specific container with the carrier, thereby completing 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多孔質珪酸カルシウム
水和物を少なくとも主成分とする担持体を網または多孔
容器に充填させた状態で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 provides a method in which a carrier containing at least a porous calcium silicate hydrate carrying hydrogen peroxide as a main component is packed in a net or a porous container and is contaminated with phytoplankton, etc. A method of contacting with water that has been used is adopted.
［作用コ
本発明においては過酸化水素の担持体として多孔質珪酸
カルシウム粉粒体を採用しているので、過酸化水素が前
記粉粒体の空隙に吸収される。過酸化水素を吸収した前
記粉粒体を網または穴のたくさん開いた容器に封入した
状態で赤潮等により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は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。[Operation] In the present invention, porous calcium silicate powder is used as a carrier for hydrogen peroxide, so hydrogen peroxide is absorbed into the voids of the powder. When the granular material that has absorbed hydrogen peroxide is sealed in a net or a container with many holes and placed in water contaminated by red tide, etc., hydrogen peroxide is gradually released and causes the formation of plankton and other substances in the water. Reacts with floating dust, especially metal oxides, and generates 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、前記担持体は網または多孔容器に充填されている
ので、赤潮等の植物プランクトンの生磨、密度の最も高
い水深に浮遊させることができだけでくなく、ロープ等
で繋いで船で引っ張りながら移動させることもできる。In addition, since the carrier is filled in a net or a porous container, it can not only be used to collect phytoplankton such as red tide, it can be suspended at the deepest water depth, but it can also be tied with a rope or the like and pulled by a ship. You can also move it while doing so.
また、前記担持体はｍまたは多孔容器に封入されている
ので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, since the carrier is enclosed in a m or porous container, it can be easily removed from the water body after extermination of phytoplankton.
［実施例コ 次に、本発明の一実施例を説明する。[Example code] Next, one embodiment of the present invention will be described.
珪酸質原料と石灰質原料とを主原料とするスラリーに気
泡剤を添加して高温高圧下で蒸気養生して得られた嵩密
度０．５の珪酸カルシウム水和物からなる粒径１２〜２
０ｍｍの粒体２０ｋｇを７ｍｍメツシュの網袋に詰め、
これに過酸化水素（濃度７５重量％）を２０１担持させ
た。Particle size 12-2 consisting of calcium silicate hydrate with a bulk density of 0.5 obtained by adding a foaming agent to a slurry whose main raw materials are silicic raw materials and calcareous raw materials and steam-curing under high temperature and high pressure.
Pack 20kg of 0mm granules into a 7mm mesh bag,
This was loaded with 201 hydrogen peroxide (concentration 75% by weight).
この過酸化水素の担持体の封入体を、アオコの発生して
いる淡水中に投入し、アオコの色調を観察した。その結
果、前記封入体は水を含みゆっくりと沈み水面にわずか
頭を出す程度で約２時間にわたり浮遊した。同時にアオ
コの緑色は封入体を中心として徐々に白色化していった
。その後封入体を収り上げたらその位置の水質の透明度
がかなり向上していたのがうかがえた。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。This hydrogen peroxide carrier inclusion body was placed in fresh water where algal blooms were occurring, and the color tone of the algal blooms was observed. As a result, the inclusion body contained water and slowly sank and remained suspended for about 2 hours with its head slightly above the water surface. At the same time, the green color of the blue-green algae gradually turned white around the inclusion bodies. After the inclusion body was removed, it was found that the water quality at that location had improved considerably in clarity. collect water,
When 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、多孔質珪酸
カルシウム水和物は、それに過酸化水素を担持させて、
それを赤潮に汚染された水中に投入したとき、前記封入
体が長時間浮遊するように、担持体の粒径又は嵩密度等
を調整して使用する方が好ましい。また、本発明の担持
体は珪酸カルシウム水和物を主成分とするものならいか
なるものでもよい。The present invention is not limited to the above embodiments, and for example, porous calcium silicate hydrate can be made to support hydrogen peroxide,
It is preferable to adjust the particle size, bulk density, etc. of the support so that the inclusion body remains suspended for a long time when it is put into water contaminated with red tide. Further, the carrier of the present invention may be any carrier as long as it contains calcium silicate hydrate as a main component.
また、網以外にも過酸化水素の放出を可能にするように
加工を施した多孔容器を使用してもよい。In addition to the mesh, a porous container that has been processed to allow hydrogen peroxide to be released may also be used.
さらに網または多孔容器をロープ等で繋ぎ、船等で移動
すれば駆除範囲を広げる事もできる。また複数個併用し
ても良い。Furthermore, the area of extermination can be expanded by connecting nets or porous containers with ropes and transporting them by boat. Also, a plurality of them may be used together.
［発明の効果］
以上詳述したように、本発明は過酸化水素の分解反応を
短時間に急激に起こさせることなく長い時間をかけて分
解させ、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、海底に沈降させること
なく担持体を回収することができる。[Effects of the Invention] As detailed above, the present invention decomposes hydrogen peroxide over a long period of time without causing a rapid decomposition reaction in a short period of time, and as a result, it decomposes hydrogen peroxide in water without killing fish etc. It is highly effective in eliminating only phytoplankton, which is a source of 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. The carrier can be recovered without settling to the seabed.
多孔容器等に前記担持体を充填してからその担持体に過
酸化水素を接触させる態様においては両者を直接接触さ
せてから直ちに水域に前記担持体に投入できるので、空
気中における過酸化水素の分解を最小限に抑えることが
できるという効果がある。In the embodiment in which hydrogen peroxide is brought into contact with the carrier after the carrier is filled in a porous container, etc., the carrier can be put into a body of water immediately after the two have been brought into direct contact, so that hydrogen peroxide in the air can be reduced. This has the effect of minimizing decomposition.
Claims (1)
物を少なくとも主成分とする担持体を網または多孔容器
に充填させた状態で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。 ２、過酸化水素は、網または多孔容器に充填された珪酸
カルシウム水和物を少なくとも主成分とする担持体に担
持させる請求項１記載の水の浄化方法。 ３、前記多孔質珪酸カルシウムは珪酸質原料と石灰質原
料とを主原料とするスラリーを高温高圧下で蒸気養生し
て得られたものである請求項１記載の水の浄化方法。[Scope of Claims] 1. Water contaminated with phytoplankton etc. is prepared by filling a net or a porous container with a carrier containing at least a porous calcium silicate hydrate carrying hydrogen peroxide as a main component. A water purification method characterized by contacting the water. 2. The water purification method according to claim 1, wherein the hydrogen peroxide is supported on a carrier having at least a calcium silicate hydrate as a main component filled in a mesh or a porous container. 3. The water purification method according to claim 1, wherein the porous calcium silicate is obtained by steam-curing a slurry whose main raw materials are a silicate raw material and a calcareous raw material under high temperature and high pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20525889A JPH0368493A (en) | 1989-08-08 | 1989-08-08 | Method for purifying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20525889A JPH0368493A (en) | 1989-08-08 | 1989-08-08 | Method for purifying water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368493A true JPH0368493A (en) | 1991-03-25 |
Family
ID=16504009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20525889A Pending JPH0368493A (en) | 1989-08-08 | 1989-08-08 | Method for purifying water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368493A (en) |
Cited By (1)
| 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 |
-
1989
- 1989-08-08 JP JP20525889A patent/JPH0368493A/en active Pending
Cited By (4)
| 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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