JP2651706B2 - Hydrogen peroxide carrier and method for purifying water using the same - Google Patents
Hydrogen peroxide carrier and method for purifying water using the sameInfo
- Publication number
- JP2651706B2 JP2651706B2 JP20576788A JP20576788A JP2651706B2 JP 2651706 B2 JP2651706 B2 JP 2651706B2 JP 20576788 A JP20576788 A JP 20576788A JP 20576788 A JP20576788 A JP 20576788A JP 2651706 B2 JP2651706 B2 JP 2651706B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen peroxide
- calcium silicate
- carrier
- water
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 12
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 14
- 239000000378 calcium silicate Substances 0.000 claims description 14
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 5
- 229910001424 calcium ion Inorganic materials 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 5
- 241000192700 Cyanobacteria Species 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000008029 eradication Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
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を構成するプラン
クトン等に対して過酸化水素を使用して駆除する水の浄
化方法及びその方法に使用する過酸化水素担持体に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention uses hydrogen peroxide for plankton, which constitutes seawater (hereinafter simply referred to as red tide), in which plankton has occurred abnormally, and blue water in freshwater, etc. The present invention relates to a method for purifying water to be extinguished and a hydrogen peroxide carrier used in the method.
［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 using hydrogen peroxide has been known as a method for controlling red tide in seawater and water worms in freshwater (Japanese Patent Application Laid-Open No. 55-141142). ).
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 for using hydrogen peroxide as it is or in a 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游塵
埃、特に金属の酸化物と反応して活性酸素を発生し、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, in this method, when hydrogen peroxide is injected into water, the hydrogen peroxide immediately reacts with plankton and floating dust in the water, particularly metal oxides, to generate active oxygen, which exerts a plankton-eliminating effect. There is a problem that the effect is located 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。Further, the above-mentioned known example describes a method in which hydrogen peroxide is loaded into water while being supported on a carrier, but does not disclose what carrier is specifically used.
そこで、本発明者等は活性酸素の放出持続時間が長い
水の浄化方法及びその方法に使用する担持体を見い出す
目的で鋭意研究し、本発明に到達した。The inventors of the present invention have conducted intensive studies with the aim of finding a method for purifying water having a long active oxygen release duration and a carrier used in the method, and have reached the present invention.
［課題を解決するための手段］ 本発明は前記目的を達成するために多孔質珪酸カルシ
ウム粉粒体を少くとも主成分とする過酸化水素担持体を
採用する（請求項１の発明）。[Means for Solving the Problems] In order to achieve the above object, the present invention employs a hydrogen peroxide carrier having at least a porous calcium silicate powder as a main component (the invention of claim 1).
同じく前記の目的を達成するために、本発明は多孔質
珪酸カルシウム粉粒体に担持させた過酸化水素と植物プ
ランクトン等に汚染された水とを接触させるという手段
を採用する（請求項２の発明）。Similarly, in order to achieve the above object, the present invention employs a means of contacting hydrogen peroxide supported on porous calcium silicate granules with water contaminated with phytoplankton and the like (claim 2). invention).
［作用］ 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
前記粉粒体を赤潮等により汚染された水の中に投入する
と、多孔質珪酸カルシウムの空隙に水が接触してその粉
粒体からカルシウムイオンが溶出してくる。そして、こ
のカルシウムイオンと過酸化水素とが反応して活性酸素
を発生する。[Function] In the present invention, since the porous calcium silicate powder is used as the hydrogen peroxide carrier, the hydrogen peroxide is absorbed in the voids of the powder. When the particulate matter having absorbed hydrogen peroxide is put into water contaminated with red tide or the like, water comes into contact with the voids of the porous calcium silicate, and calcium ions are eluted from the particulate matter. Then, the calcium ions react with hydrogen peroxide to generate active oxygen.
この過程において前記カルシウムイオンの溶出が徐々
に進むので、活性酸素の発生が水中においても持続す
る。その結果、活性酸素によるプランクトン等の駆除が
持続することになる。In this process, the elution of the calcium ions gradually proceeds, so that the generation of active oxygen continues in water. As a result, the removal of plankton and the like by the active oxygen is continued.
［実施例］ 次に、本発明の一実施例を比較例とともに説明する。Example Next, an example of the present invention will be described together with a comparative example.
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のトバモライトからなる粒径３〜5mmの珪酸カル
シウム水和物20gを担持体として選択し、この担持体に
過酸化水素（濃度:30重量％）を20cc担持させた。20 g of calcium silicate hydrate having a particle size of 3 to 5 mm and consisting of tobermorite having a bulk density of 0.5 obtained by adding a foaming agent to a slurry containing a siliceous raw material and a calcareous raw material as main raw materials and steam-curing under high temperature and high pressure Was selected as a carrier, and 20 cc of hydrogen peroxide (concentration: 30% by weight) was carried on the carrier.
この過酸化水素の担持体の全量を、アオコの発生して
いる淡水100リットル中に投入した。そして、活性酸素
の発生状況及びアオコの色調を観察した。その結果、多
孔質珪酸カルシウムの空隙に水が接触してカルシウムイ
オンが溶出し、カルシウムイオンと過酸化水素とが反応
して、約２時間にわたり活性酸素が発生するとともにア
オコの色調が変化した。この間、前記担持体は水中で浮
沈みを繰り返し、活性酸素の発生が持続した。その結
果、活性酸素によりアオコが完全に駆除でき、６時間後
には担持体とともに容器の底部に沈降していた。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。また、水中のリン
の含有量を実験の前後において定量したら、5ppmから0.
5ppmに減少していた。The entire amount of the hydrogen peroxide carrier was put into 100 liters of fresh water in which blue water was generated. Then, the state of generation of active oxygen and the color tone of blue-green algae were observed. As a result, water came into contact with the voids of the porous calcium silicate, and calcium ions were eluted, and the calcium ions and hydrogen peroxide reacted, generating active oxygen for about 2 hours and changing the color tone of blue-green algae. During this time, the carrier repeatedly floated and sinked in water, and the generation of active oxygen continued. As a result, the blue-green algae was completely exterminated with active oxygen, and settled at the bottom of the container together with the carrier after 6 hours. Microscopic observation of the phytoplankton in the water revealed no surviving plankton. In addition, if the content of phosphorus in water was determined before and after the experiment, it was reduced from 5 ppm to 0.1 ppm.
It was reduced to 5 ppm.
［比較例１］ 多孔質珪酸カルシウム水和物に代え、蒸気養生するこ
となく得られたコンクリート粉粒体を担持体として使用
し、これに過酸化水素を添加したら、添加直後両者は激
しく反応し、この時点で相当活性酸素が放出された。こ
の担持体を使用して、前記実施例と同じ要領で実験を行
なった。その結果、前記担持体は淡水と接触後直ちに前
記淡水の容器底部に沈降するとともに、活性酸素の発生
が少ないだけでなく発生継続時間も10分と短かった。ア
オコもさして変色せず、顕微鏡観察したところ植物プラ
ンクトンが相当生存していた。[Comparative Example 1] Instead of porous calcium silicate hydrate, a concrete granule obtained without steam curing was used as a support, and when hydrogen peroxide was added thereto, immediately after addition, both reacted violently. At this point, considerable active oxygen was released. Using this carrier, an experiment was performed in the same manner as in the above example. As a result, the carrier was settled at the bottom of the container of the fresh water immediately after contact with the fresh water, and the generation of active oxygen was not only small but also the generation time was as short as 10 minutes. The blue-green algae did not change color, and microscopic observation revealed that phytoplankton was quite alive.
［比較例２］ 前記実施例と同様の実験において前記多孔質珪酸カル
シウム粒体に過酸化水素を担持させることなく、そのま
ま前記実施例と同じ要領で実験を行なった。その結果、
ほとんどアオコの駆除ができなかった。[Comparative Example 2] In the same experiment as in the above-mentioned Example, an experiment was carried out in the same manner as in the above-mentioned Example without carrying hydrogen peroxide on the porous calcium silicate granules. as a result,
Almost no eradication was possible.
［比較例３］ 前記実施例と同様の実験において過酸化水素を前記実
施例と同量使用して、同じ要領で実験を行なった。その
結果、ある程度アオコの駆除ができたが、一部植物プラ
ンクトンの生存が認められた。Comparative Example 3 An experiment was performed in the same manner as in the above example, using the same amount of hydrogen peroxide as in the above example. As a result, it was possible to control blue water to some extent, but some phytoplankton survived.
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
担持体が浮沈みするように、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して含むものなら
いかなるものでもよい。The present invention is not limited to the above-described embodiment.For example, when porous calcium silicate hydrate is loaded with hydrogen peroxide and poured into water contaminated with red tide, the carrier floats and sinks. Thus, it is preferable to adjust the particle size or the bulk density of the carrier and use it. The carrier of the present invention may be any carrier as long as it contains calcium silicate hydrate as a main component.
［発明の効果］ 以上詳述したように、本発明は活性酸素の発生を短時
間に急激に起させることなく長い時間をかけて発生さ
せ、その結果、魚類等を殺すことな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。[Effects of the Invention] As described in detail above, the present invention generates active oxygen over a long period of time without abruptly generating it in a short period of time. It excels at eliminating only phytoplankton.
フロントページの続き (72)発明者 森田 直樹 愛知県尾張旭市下井町下井2035番地 小 野田エー・エル・シー株式会社開発研究 所内 審査官 板橋 一隆Continuing on the front page (72) Inventor Naoki Morita 2035 Shimoi, Shioi-machi, Owariasahi-shi, Aichi Pref.
Claims (4)
主成分とする過酸化水素担持体。1. A hydrogen peroxide carrier comprising at least a porous calcium silicate powder as a main component.
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ものである
請求項１記載の過酸化水素担持体。2. The porous calcium silicate powder is obtained by adding a foaming agent to a slurry mainly composed of a siliceous raw material and a calcareous raw material, and steam-curing the mixture under high temperature and high pressure. 2. The hydrogen peroxide carrier according to 1.
過酸化水素と植物プランクトン等に汚染された水とを接
触させることを特徴とする水の浄化方法。3. A method for purifying water, comprising contacting hydrogen peroxide carried on porous calcium silicate particles with water contaminated with phytoplankton and the like.
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ものである
請求項３記載の過酸化水素担持体。4. The porous calcium silicate powder is obtained by adding a foaming agent to a slurry containing a siliceous raw material and a calcareous raw material as a main raw material, and steam-curing under high temperature and high pressure. 3. The hydrogen peroxide carrier according to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20576788A JP2651706B2 (en) | 1988-08-18 | 1988-08-18 | Hydrogen peroxide carrier and method for purifying water using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20576788A JP2651706B2 (en) | 1988-08-18 | 1988-08-18 | Hydrogen peroxide carrier and method for purifying water using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0255209A JPH0255209A (en) | 1990-02-23 |
| JP2651706B2 true JP2651706B2 (en) | 1997-09-10 |
Family
ID=16512333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20576788A Expired - Lifetime JP2651706B2 (en) | 1988-08-18 | 1988-08-18 | Hydrogen peroxide carrier and method for purifying water using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2651706B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101699631B1 (en) * | 2015-12-24 | 2017-01-24 | 오씨아이 주식회사 | Removing agent of green tides and manufacturing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803665B (en) * | 2014-01-09 | 2015-05-13 | 上虞洁华化工有限公司 | Disintegration controllable granular oxygen producer and manufacturing method thereof |
-
1988
- 1988-08-18 JP JP20576788A patent/JP2651706B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101699631B1 (en) * | 2015-12-24 | 2017-01-24 | 오씨아이 주식회사 | Removing agent of green tides and manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0255209A (en) | 1990-02-23 |
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