JPH1034143A - Photoactivating water-treating agent and its container - Google Patents
Photoactivating water-treating agent and its containerInfo
- Publication number
- JPH1034143A JPH1034143A JP8208785A JP20878596A JPH1034143A JP H1034143 A JPH1034143 A JP H1034143A JP 8208785 A JP8208785 A JP 8208785A JP 20878596 A JP20878596 A JP 20878596A JP H1034143 A JPH1034143 A JP H1034143A
- Authority
- JP
- Japan
- Prior art keywords
- titanium oxide
- treating agent
- iron oxide
- water
- powder
- 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
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000011812 mixed powder Substances 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 6
- 239000011941 photocatalyst Substances 0.000 abstract description 7
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 2
- 230000001877 deodorizing effect Effects 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 230000002186 photoactivation Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 238000006479 redox reaction Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001443 photoexcitation Effects 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000002468 redox effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- -1 swimming pools Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、家庭用風呂水、水
泳プ−ル、排水浄化槽等に対し、有機物や微生物の殺菌
処理、及び消臭処理に有効な光活性を有する処理剤に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treating agent having photoactivity effective for disinfecting organic substances and microorganisms and deodorizing household bath water, swimming pools, waste water purification tanks and the like.
【０００２】[0002]
【従来の技術】光触媒は、一定波長の光を吸収すると電
子励起状態となり、水中で酸化還元反応を惹起し、殺菌
作用を発揮することが知られている。そこで従来、浴槽
等に光触媒を利用した例として、循環ろ過装置（特開平
５−１２３６９９）があり、その概要は、微生物を膜形
成した微生物ろ過槽とランプの光を受けた光触媒が殺菌
力を有する殺菌槽とを水の流れ方向に順に配設すること
により、フィルタの交換頻度を大幅に減少し、長期間の
使用を可能にするものである。2. Description of the Related Art It is known that a photocatalyst becomes an electronically excited state when absorbing light of a certain wavelength, causes an oxidation-reduction reaction in water, and exhibits a bactericidal action. Therefore, as a conventional example of using a photocatalyst in a bathtub or the like, there is a circulation filtration device (Japanese Patent Laid-Open No. 5-123699). By disposing the sterilizing tanks sequentially in the flow direction of the water, the frequency of replacement of the filter is greatly reduced, and the filter can be used for a long time.
【０００３】しかし、一般に光触媒の活性となる照射光
の波長域は紫外線領域にあり、例えば酸化チタンでは３
８８ｎｍの紫外線領域にあり、上述の如く、紫外線のラ
ンプ照射が必要となり、ランプを照射する殺菌槽を別途
設けて循環させる等の複雑な工程を要するものとなる。
従って、装置が大型で複雑となり、経済的に高価なもの
となり、一般家庭や小規模事業所、工場等での使用には
困難になる。However, in general, the wavelength range of the irradiation light that activates the photocatalyst is in the ultraviolet range.
Since it is in the ultraviolet region of 88 nm, as described above, irradiation with an ultraviolet lamp is required, and a complicated process such as separately providing and circulating a sterilizing tank for irradiating the lamp is required.
Therefore, the device becomes large and complicated, and it becomes economically expensive, so that it is difficult to use the device in ordinary households, small businesses, factories, and the like.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明者は、斯
かる水処理に当たって、光触媒に対して可視光線を利用
することに着目し、紫外線ランプによる照射の必要をな
くして、極めて簡潔な装置で一般家庭や小規模事業所等
にも適用可能な手段を提供しようとするものである。Therefore, the present inventor focused on the use of visible light for the photocatalyst in such water treatment, eliminating the need for irradiation with an ultraviolet lamp, and using a very simple apparatus. It is intended to provide means applicable to ordinary households and small business establishments.
【０００５】[0005]
【課題を解決するための手段】本発明は、酸化チタンに
よる酸化還元作用を利用し、且つ、その際、紫外線に代
えて一般に利用可能な可視光線によって光活性が導ける
よう鋭意研究を重ねた結果、酸化チタンと酸化鉄とを組
合わせることによって、可視領域でも光活性することを
見い出し本発明を完成させたものである。DISCLOSURE OF THE INVENTION The present invention utilizes the redox effect of titanium oxide, and at the same time, has conducted intensive studies so that photoactivity can be guided by generally available visible light instead of ultraviolet light. By combining titanium oxide and iron oxide, they have found that they are photoactive even in the visible region, and have completed the present invention.
【０００６】本発明に使用する光触媒は、酸化チタンＴ
ｉＯ2を選ぶ。これは、酸化チタンは一般に入手容易で
あると共に、励起光の波長が３８８ｎｍと、ＳｎＯ2等
と比較すると長波長側にあり、低エネルギ−で励起する
からである。該酸化チタンにバンドキャップ以上のエネ
ルギ−を有する光を照射すると、価電子帯から伝導帯へ
電子が励起され、伝導帯に電子が価電子帯に正孔が生
じ、光励起される。そして、バンドキャップが３．２ｅ
Ｖであり、電子と正孔の再結合がにくく、再結合による
失活率が小さいという特質を有する。該酸化チタンはル
チル型よりアナタ−ゼ型を用いる。これは、バンドキャ
ップが、アナタ−ゼ型の方が３．２３ｅＶで、ルチル型
の３．０２ｅＶより大きく、光吸収により生成した電子
と正孔のエネルギ−が大きく、電子と正孔との再結合が
起こりがたいためである。しかし、該酸化チタンは、太
陽光の約２％程度しか吸収できず、可視光線の利用効率
が悪い。The photocatalyst used in the present invention is titanium oxide T
choose the iO 2. This is because titanium oxide is generally easily available, and the wavelength of the excitation light is 388 nm, which is on the longer wavelength side as compared with SnO 2 or the like, and is excited with low energy. When the titanium oxide is irradiated with light having energy equal to or higher than the band cap, electrons are excited from the valence band to the conduction band, electrons are generated in the conduction band, holes are generated in the valence band, and photoexcitation is performed. And the band cap is 3.2e
V, which has the characteristics that the recombination of electrons and holes is difficult and the deactivation rate due to the recombination is small. The titanium oxide uses an anatase type rather than a rutile type. This is because the band cap of the anatase type is 3.23 eV, which is larger than that of the rutile type, and the energy of electrons and holes generated by light absorption is large. This is because bonding is unlikely. However, the titanium oxide can only absorb about 2% of the sunlight, and is inefficient in using visible light.
【０００７】そこで、酸化鉄（Ｆｅ2Ｏ3）を用いる。酸
化鉄は、バンドキャップ２．３ｅＶで、励起に必要な光
波長が５３９ｎｍであり、可視光線領域に波長域があ
り、太陽光の利用が可能になる。又、該酸化鉄は、酸素
原子当たりの生成熱が−△Ｈ＝７５ｋｃａｌ程度であ
り、鉄と酸素との結合がそれ程強くないため、触媒表面
上で活性酸素が酸化還元反応を起こしやすい性質を有し
ている。しかし、バンドキャップ２．３ｅＶで、酸化チ
タンと比較するとエネルギ−が小さく、電子と正孔の再
結合が起こり易く、失活し易い傾向にある。Therefore, iron oxide (Fe 2 O 3 ) is used. Iron oxide has a band cap of 2.3 eV, a light wavelength required for excitation is 539 nm, and has a wavelength region in a visible light region, so that sunlight can be used. In addition, the iron oxide has a heat of formation per oxygen atom of about-△ H = 75 kcal and the bond between iron and oxygen is not so strong, so that active oxygen easily causes a redox reaction on the catalyst surface. Have. However, with a bandgap of 2.3 eV, the energy is smaller than that of titanium oxide, and the recombination of electrons and holes is apt to occur, and the band cap tends to be easily deactivated.
【０００８】そこで、酸化チタンと酸化鉄の両者を混合
し、その混合割合は、酸化チタン１００部に対し、酸化
鉄を３〜７０部程度とし、これに焼成に必要な結合剤等
を加えた配合とする。３部以上としたのは、これ以下で
は酸化鉄の効果が少ないからであり、７０部以下とした
のは、これ以上では酸化鉄が過剰となり酸化チタンの活
性が失われるからである。これを６００〜１３００℃程
度の温度で、２〜４時間程度の焼成条件で焼成し、粒状
又は塊状等の適当な形状とする。Therefore, both titanium oxide and iron oxide are mixed, and the mixing ratio is about 3 to 70 parts of iron oxide with respect to 100 parts of titanium oxide, and a binder necessary for firing is added thereto. Mix. The reason why the amount is set to 3 parts or more is that the effect of iron oxide is small when the amount is less than 70 parts, and the reason why the amount is set to 70 parts or less is that if the amount is more than 70 parts, the activity of titanium oxide is lost due to excess iron oxide. This is fired at a temperature of about 600 to 1300 ° C. under firing conditions of about 2 to 4 hours to obtain an appropriate shape such as a granular shape or a lump shape.
【０００９】次に、該処理剤を入れる容器１は、図１に
示す如く、容器の上部に発泡材等を封入して空気層２を
形成し、その下にチップ状の本発明処理剤４を充填し、
その充填した処理剤の付近には自然光の照射を可能にす
る窓３を穿設する。即ち、上記焼結体を粒状又は塊状の
まま水中に投入したのでは、自重で水中に沈下してしま
い、太陽光等の自然光の照射を受ける効率が極端に悪く
なる。そこで、本発明処理材は可視光線領域での光活性
を特徴とするので、その可視光線−太陽光−等の自然光
を受け得るようにしたものである。尚、この自然光と
は、あらためて照射ランプ等の装置を要しないという意
味であり、太陽光のほか室内の蛍光灯や電球からの光も
含むものである。又、空気層２とは、容器全体の比重を
軽減させるもので、空気を内包した発泡材又は空気を密
閉させた構造でも良い。Next, as shown in FIG. 1, the container 1 for containing the treating agent is formed by enclosing a foaming material or the like in the upper portion of the container to form an air layer 2, and the chip-like treating agent 4 of the present invention is formed thereunder. Filling,
A window 3 that allows natural light irradiation is formed in the vicinity of the filled processing agent. That is, if the sintered body is put into water in a granular or lump state, it sinks in water by its own weight, and the efficiency of receiving natural light such as sunlight becomes extremely poor. Then, since the treatment material of the present invention is characterized by light activity in a visible light region, it can receive natural light such as visible light-sunlight. The natural light means that a device such as an irradiation lamp is not required again, and includes light from indoor fluorescent lamps and light bulbs in addition to sunlight. Further, the air layer 2 reduces the specific gravity of the entire container, and may be a foam material containing air or a structure in which air is sealed.
【００１０】上記本発明の処理剤を封入した容器を浴槽
及び処理槽に浮かべると、水中では水を反応対象とし
て、酸化チタンによる酸化還元反応が起こされるが、そ
の反応は、下記の如くに、考えられる。When the container enclosing the treatment agent of the present invention is floated in a bathtub or a treatment tank, an oxidation-reduction reaction with titanium oxide occurs in water with water as a reaction target. The reaction is as follows. Conceivable.
【化１】 浴槽中に有機物が存在する場合には、上記ＯＨラジカル
種により酸化され、水や炭酸ガスに分解され、有機物が
酸化分解される。Embedded image When an organic substance is present in the bathtub, the organic substance is oxidized by the OH radical species, decomposed into water or carbon dioxide, and the organic substance is oxidatively decomposed.
【００１１】又、酸化チタンには殺菌作用が発揮され、
浴中に微生物が存在する場合には、これが殺菌される。
この殺菌のメカニズムは明確でないが、細胞内の補酵素
の酸化による呼吸阻害が原因と考えられているが、これ
により細菌等の微生物の増殖が抑制され、浴槽中のヌメ
リ等が解消される。又、臭い成分が存在する場合にも、
当該酸化作用によって、アンモニア、硫化水素等の有臭
成分が無臭化される。In addition, a bactericidal action is exerted on titanium oxide,
If microorganisms are present in the bath, they are killed.
Although the mechanism of this sterilization is not clear, it is thought to be caused by respiratory inhibition caused by oxidation of intracellular coenzyme. This suppresses the growth of microorganisms such as bacteria and eliminates slime in the bathtub. Also, when there is an odor component,
Odorous components such as ammonia and hydrogen sulfide are deodorized by the oxidizing action.
【００１２】さて、上記主に酸化チタンの光励起による
反応の際に、該酸化チタンは太陽光の約２％程度しか吸
収できず、可視光線の利用効率が極めて悪い。しかし、
酸化鉄は、励起に必要な光波長が５３９ｎｍであり、可
視光線領域に波長域があるので、酸化鉄が太陽光の照射
を受けて励起し、その励起エネルギ−が隣接する酸化チ
タン側にも影響を与える。この結果、照射ランプ等の照
射装置を要することなく、太陽光又は蛍光灯等の一般に
存在する光を利用して光触媒を活性化させることができ
る。又、一旦励起された触媒は、酸化鉄だけの場合は電
子と正孔とが再結合して失活し易い傾向にあるが、バン
ドキャップの大きな酸化チタンの存在によってそれが補
われ、活性状態が維持される。When the above-mentioned reaction is mainly caused by photoexcitation of titanium oxide, the titanium oxide can absorb only about 2% of sunlight, and the utilization efficiency of visible light is extremely poor. But,
The light wavelength required for excitation of iron oxide is 539 nm, and there is a wavelength range in the visible light range. Therefore, the iron oxide is excited by irradiation of sunlight, and the excitation energy is also transmitted to the adjacent titanium oxide. Affect. As a result, it is possible to activate the photocatalyst using generally existing light such as sunlight or a fluorescent lamp without using an irradiation device such as an irradiation lamp. In the case of a once-excited catalyst, when iron oxide alone is used, electrons and holes tend to recombine and be easily deactivated. However, the presence of titanium oxide having a large band cap makes up for it, and the activated state becomes active. Is maintained.
【００１３】又、その際、処理剤を容器によって浮遊状
態に置くと、窓から太陽光、蛍光灯等の自然光の照射を
受け易くなり、又、浴槽等では比較的高温の湯に接触す
るので熱エネルギ−の供給を受けやすく、触媒活性の条
件を高めることができる。At this time, if the treating agent is placed in a floating state by a container, it becomes easy to receive natural light such as sunlight or fluorescent light from a window, and a bathtub or the like comes into contact with relatively hot water. It is easy to receive supply of heat energy, and the condition of catalytic activity can be increased.
【００１４】[0014]
【実施例１】下記の配合を基に、焼成温度９８０℃で、
３時間焼成し、５ｍｍφ×１０ｍｍで厚み２ｍｍの中空
円筒形のチップを作製した。 配合 酸化チタン粉末： １００ｋｇ 酸化鉄粉末 ： １００ｋｇ ＰＶＡ ： ５ｋｇExample 1 Based on the following composition, at a firing temperature of 980 ° C.,
By firing for 3 hours, a hollow cylindrical chip of 5 mmφ × 10 mm and a thickness of 2 mm was prepared. Formulation Titanium oxide powder: 100 kg Iron oxide powder: 100 kg PVA: 5 kg
【００１５】[0015]
【試験例１】上記実施例１で作製したチップ３０個を容
器に封入し、家庭用浴槽に浮かべ、その浴槽内の水の変
化を経時的に測定及び観察した。その結果、表１の通り
であった。尚、試験の方法は以下の通りとした。通常の
利用方法で毎日風呂を沸し、その際、お湯を抜かずに補
給水のみで再度沸して入浴した。採水は一昼夜経過した
後朝に上層から採取し、測定時の水温は３５℃であっ
た。ｐＨ，ＯＲＰ，ＥＣ（電導率）は、計測器−ＨＯＲ
ＩＢＡ ＥＳ−１４，Ｄ−１３で測定した。TEST EXAMPLE 1 Thirty chips manufactured in Example 1 were sealed in a container, floated in a home tub, and changes in water in the tub were measured and observed over time. The results were as shown in Table 1. The test method was as follows. The bath was boiled every day using normal usage, and at that time, the bath was boiled again with only makeup water without removing hot water. Water was collected from the upper layer in the morning after one day and night, and the water temperature at the time of measurement was 35 ° C. pH, ORP, EC (conductivity) are measured by HOR
It was measured with IBA ES-14, D-13.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 [Table 2]
【００１８】[0018]
【試験例２】[Test Example 2]
【００１９】小型合併浄化槽１０人槽（２０ｐｐｍ）、
利用８人、便器２個の店舗併用住宅に、本発明処理剤で
実施例１で作製したチップ１２０ｇをセットし、アンモ
ニア、硫化水素濃度等の経時変化を測定した。Small-sized combined septic tank, 10 tanks (20 ppm),
120 g of the chip prepared in Example 1 with the treatment agent of the present invention was set in a house combined with a store with eight toilets and two toilets, and the time-dependent changes in ammonia, hydrogen sulfide concentration, and the like were measured.
【００２０】[0020]
【表３】 [Table 3]
【００２１】この結果、２週間経過頃から、アンモニ
ア、硫化水素の濃度が激減し、殆ど臭いを感じない程度
になっり、ＳＳ，ＢＯＤの見地からも水質が改善されて
いるのが判る。As a result, the concentration of ammonia and hydrogen sulfide was drastically reduced from about two weeks later, and almost no smell was felt. From the viewpoint of SS and BOD, it was found that the water quality was improved.
【００２２】[0022]
【発明の効果】以上の構成に基づく本発明は、家庭用浴
槽やプ−ル水槽の水に発生する水垢や細菌等の微生物の
繁殖を抑制でき、又、浄化槽等の悪臭成分を無臭化する
ことができ、その際、ランプ等の照射装置を要すること
なく自然光で光励起させることができるので、単に容器
に充填して浮かべれば良く、極めて簡潔な装置で処理す
ることできるという優れた効果を奏する。According to the present invention based on the above constitution, the growth of microorganisms such as scales and bacteria generated in water in a home tub or a pool aquarium can be suppressed, and malodor components in a septic tank or the like can be made odorless. In this case, the light can be excited by natural light without the need for an irradiation device such as a lamp, so that the container can be simply filled and floated, and the excellent effect that the treatment can be performed with an extremely simple device can be achieved. Play.
【図１】本発明容器の縦断側面図。FIG. 1 is a longitudinal side view of a container of the present invention.
１ 容器 ２ 空気層 ３ 窓 ４ 処理剤 DESCRIPTION OF SYMBOLS 1 Container 2 Air layer 3 Window 4 Treatment agent
Claims (2)
の粉末と、可視光線領域に光活性を有する酸化鉄の粉末
とを混合し、該混合粉末を加熱焼成したことを特徴とす
る光活性水処理剤。1. A photo-active water comprising: mixing a powder of titanium oxide having photoactivity in an ultraviolet region and a powder of iron oxide having photoactivity in a visible light region; and heating and firing the mixed powder. Processing agent.
化チタン１００部に対し、酸化鉄を３〜７０部とした請
求項１記載の光活性水処理剤。 【請求項２】 紫外線領域に光活性を有する酸化チタン
の粉末と、可視光線領域に光活性を有する酸化鉄の粉末
とを混合し、該混合粉末を加熱焼成したことを特徴とす
る光活性水処理剤を封入し、器内の一部に空気層を形成
して容器全体を水中で浮遊可能とし、該処理剤の付近に
自然光の採取可能な窓を形成した容器。2. The photoactive water treatment agent according to claim 1, wherein the mixing ratio of titanium oxide and iron oxide is 3 to 70 parts of iron oxide with respect to 100 parts of titanium oxide. 2. A photo-active water comprising mixing a titanium oxide powder having photoactivity in an ultraviolet region and an iron oxide powder having photoactivity in a visible light region, and heating and firing the mixed powder. A container in which a processing agent is sealed, an air layer is formed in a part of the vessel, the entire container is allowed to float in water, and a window is formed near the processing agent so that natural light can be collected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8208785A JPH1034143A (en) | 1996-07-19 | 1996-07-19 | Photoactivating water-treating agent and its container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8208785A JPH1034143A (en) | 1996-07-19 | 1996-07-19 | Photoactivating water-treating agent and its container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1034143A true JPH1034143A (en) | 1998-02-10 |
Family
ID=16562074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8208785A Pending JPH1034143A (en) | 1996-07-19 | 1996-07-19 | Photoactivating water-treating agent and its container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1034143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643826A (en) * | 1981-04-13 | 1987-02-17 | Guinard De Separation | Filtration apparatus comprising endless belts passing between clamping plates |
-
1996
- 1996-07-19 JP JP8208785A patent/JPH1034143A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643826A (en) * | 1981-04-13 | 1987-02-17 | Guinard De Separation | Filtration apparatus comprising endless belts passing between clamping plates |
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