JP2000288402A - Photocatalyst-carrying composition and its production - Google Patents
Photocatalyst-carrying composition and its productionInfo
- Publication number
- JP2000288402A JP2000288402A JP9766899A JP9766899A JP2000288402A JP 2000288402 A JP2000288402 A JP 2000288402A JP 9766899 A JP9766899 A JP 9766899A JP 9766899 A JP9766899 A JP 9766899A JP 2000288402 A JP2000288402 A JP 2000288402A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- natural
- liparite
- oil
- water
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000011941 photocatalyst Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000010453 quartz Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 241000356114 Trachytes Species 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 239000005332 obsidian Substances 0.000 abstract description 14
- 239000011148 porous material Substances 0.000 abstract description 11
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 239000004575 stone Substances 0.000 abstract description 5
- 150000003609 titanium compounds Chemical class 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000003980 solgel method Methods 0.000 abstract description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 6
- 239000003921 oil Substances 0.000 description 29
- 238000000926 separation method Methods 0.000 description 11
- 239000006260 foam Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000011324 bead Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 244000048199 Hibiscus mutabilis Species 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば、水面に
浮遊する油を分解除去するのに使用する光触媒担持組成
物及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photocatalyst-supporting composition used for decomposing and removing oil floating on a water surface and a method for producing the same.
【０００２】[0002]
【従来の技術】油吸着槽に貯留した排水の水面に浮遊す
る油の回収は、従来は、例えば、プラスチック繊維マッ
ト等の油吸着材を使用して行っている。2. Description of the Related Art Conventionally, oil floating on the surface of wastewater stored in an oil adsorption tank is collected using an oil adsorbent such as a plastic fiber mat.
【０００３】この種の油吸着材は、価格的に安価であ
り、油吸着槽への敷設は容易である。しかし、一旦、油
を吸着すると、経時変化をおこし、水を吸収したり、泥
を吸着して、油吸着槽の底に沈んでしまうため、油の回
収作業や焼却処分等の後処理が面倒である。[0003] This type of oil adsorbent is inexpensive and can be easily installed in an oil adsorption tank. However, once oil is adsorbed, it changes over time, absorbing water and adsorbing mud and sinking to the bottom of the oil adsorption tank, so post-processing such as oil recovery and incineration is troublesome. It is.
【０００４】そこで、最近では、中空のガラスビーズで
光触媒を担持した光触媒担持組成物が提案されている。Accordingly, recently, a photocatalyst-supporting composition in which a photocatalyst is supported by hollow glass beads has been proposed.
【０００５】この組成物は、例えば、油水分離槽に送給
されてくる、油を含んだ排水の中に投入すると、水に浮
くので、排水の水面に浮遊している油を吸着する。吸着
された油は、紫外線ランブの光や太陽光によって炭酸ガ
スと水に分解される。When this composition is put into, for example, oil-containing wastewater fed to an oil-water separation tank, it floats on the water, and thus adsorbs the oil floating on the water surface of the wastewater. The adsorbed oil is decomposed into carbon dioxide and water by the light of an ultraviolet lamp or sunlight.
【０００６】上記光接触担持組成物は、このようなプロ
セスで、油の吸着と油の分解を繰り返し行うことができ
るから、半永久的に使える。したがって、回収や焼却処
分を使用としない。The above-mentioned photo-contact carrier composition can be used semipermanently because oil absorption and oil decomposition can be repeatedly performed in such a process. Therefore, collection and incineration are not used.
【０００７】[0007]
【発明が解決しようとする課題】しかし、従来の光触媒
担持組成物には、次のような問題点がある。However, the conventional photocatalyst-carrying composition has the following problems.
【０００８】（１）光触媒の担持体である中空のガラス
ビースの製造に費用がかかるため、高くつく。(1) Production of a hollow glass bead as a support for the photocatalyst is expensive and therefore expensive.
【０００９】（２）ガラスビースによる光触媒の担持
は、比較的低温で行われているので、光触媒の活性が低
いし、光触媒がガラスビーズに強固に付着していない。
また、強固に付着していないため、光触媒が剥離し易
い。(2) Since the photocatalyst is supported by the glass beads at a relatively low temperature, the activity of the photocatalyst is low, and the photocatalyst is not firmly attached to the glass beads.
Further, since the photocatalyst is not firmly attached, the photocatalyst is easily peeled off.
【００１０】光触媒の活性と光触媒のガラスビーズへの
固着性を高めるためには、高温（４６０〜５５０℃）加
熱をすれば良いが、これほどの高温になるとガラスビー
ズが破裂するから、不可能である。[0010] In order to enhance the activity of the photocatalyst and the fixation of the photocatalyst to the glass beads, heating at a high temperature (460 to 550 ° C) may be performed. It is.
【００１１】（３）ガラスビーズの表面積はさほど大き
くないので、その表面に担持される光触媒の量は少な
い。このため、触媒としての能力に一定の限界がある。(3) Since the surface area of the glass beads is not so large, the amount of the photocatalyst carried on the surface is small. For this reason, there is a certain limit in the capacity as a catalyst.
【００１２】この発明は、このような従来の問題点に着
目してなされたもので、油の吸着と分解に繰り返し使用
することができる、活性の高い光触媒を強固かつ多量に
担持した安価な光触媒担持組成物とその製造方法を提供
することを目的とする。The present invention has been made in view of such conventional problems, and is an inexpensive photocatalyst which can be repeatedly used for adsorbing and decomposing oil and which has a strong and large amount of a highly active photocatalyst. An object is to provide a carrier composition and a method for producing the same.
【００１３】[0013]
【課題を解決するための手段】この発明が提供する光触
媒担持組成物は、天然または人工の石英組成岩で光触媒
を担持してなるものである。Means for Solving the Problems The photocatalyst-supporting composition provided by the present invention comprises a natural or artificial quartz composition rock supporting a photocatalyst.
【００１４】また、この発明が提供する光触媒担持組成
物の製造方法は、次の（１）〜（３）の工程を備えたも
のである。Further, a method for producing a photocatalyst-supporting composition provided by the present invention includes the following steps (1) to (3).
【００１５】（１）天然または人工の石英粗面岩と光触
媒溶液を混合する工程。(1) A step of mixing a natural or artificial quartz trachyte with a photocatalytic solution.
【００１６】（２）前記混合によって光触媒溶液を含浸
させた天然または人工の石英粗面岩を自然乾燥する工
程。(2) A step of naturally drying the natural or artificial quartz trachyte impregnated with the photocatalyst solution by the mixing.
【００１７】（３）自然乾燥した前記石英粗面岩を４０
０℃〜６００℃で、５０〜８０分間加熱する工程。(3) 40% of the naturally dried quartz trachyte
Heating at 0 ° C. to 600 ° C. for 50 to 80 minutes;
【００１８】上記天然の石英粗面岩は、噴火による超高
熱の流出物（黒曜岩）が地表で急冷されてできたもの
で、急冷によって前記流出物の中の水蒸気や炭酸ガスが
抜け出て連続気孔と独立気孔ができた粗面状多孔質の抗
火石である。この石は、軽く、吸水性と保水性を有す
る。The above-mentioned natural quartz trachyte is formed by quenching an ultra-heated effluent (obsidian) from the eruption on the ground surface. It is a rough porous anti-firestone with continuous pores and independent pores. This stone is light, has water absorption and water retention.
【００１９】表１は抗火石の化学成分とその含有率を有
し、表２は、その物性を示す。Table 1 shows the chemical components of anti-firestone and their contents, and Table 2 shows their physical properties.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】一方の人工の石英粗面岩は、天然黒曜石を
１１００℃に加熱することによってできたもので、加熱
によって前記黒曜石の中に含まれる水分（約２％）が抜
け出て連続気孔と独立気孔ができた粗面状多孔質の黒曜
石発泡体である。この発泡体は、軽く、吸水性と保水性
を有する。また、ガラス質であるため、光を反射し、光
接触担持組成物の担持体として使用した場合、光の有効
利用が可能である。On the other hand, artificial quartz trachyte is formed by heating natural obsidian to 1100 ° C. The heating removes water (about 2%) contained in the obsidian and becomes independent of continuous pores. It is a rough porous obsidian foam with pores. This foam is light and has water absorbency and water retention. Further, since it is vitreous, it reflects light, and when used as a carrier of the photocontact carrier composition, light can be effectively used.
【００２３】表３は黒曜石発泡体の化学成分とその含有
率を示し、表４はその物性を示す。Table 3 shows the chemical components of the obsidian foam and its content, and Table 4 shows its physical properties.
【００２４】[0024]
【表３】 [Table 3]
【００２５】[0025]
【表４】 [Table 4]
【００２６】[0026]
【作用】（１）この発明において使用する光触媒の担持
体である抗火石の比重は、０．６５〜１．３７であり、
黒曜石発泡体の比重は、０．０８〜０．６であるから、
軽量で、水によく浮く。また、吸水率は、両者とも５〜
２３％の範囲で極めて小さいから沈まない。(1) The specific gravity of the anti-firestone, which is the photocatalyst carrier used in the present invention, is 0.65 to 1.37;
Since the specific gravity of the obsidian foam is 0.08 to 0.6,
Lightweight and floats well in water. The water absorption rate is 5
It does not sink because it is extremely small in the range of 23%.
【００２７】このため、この発明の光触媒担持組成物
は、水、海水等の表面に浮き、浮遊している油を吸着し
ても沈まない。沈まないから吸着した油は、上方から光
を当てることによって炭酸ガスと水に分解することがで
きる。For this reason, the photocatalyst-supporting composition of the present invention floats on the surface of water, seawater, etc., and does not sink even if the floating oil is adsorbed. Since the oil does not sink, the adsorbed oil can be decomposed into carbon dioxide and water by irradiating light from above.
【００２８】この発明の光離触媒担持組成物は、このよ
うにして吸着と分解に繰り返し使用することができるの
で、回収や焼却処分等を必要とせず、半永久的に使用で
きる。The photocatalyst-carrying composition of the present invention can be used repeatedly for adsorption and decomposition in this way, so that it can be used semipermanently without the need for recovery or incineration.
【００２９】（２）抗火石と黒曜石発泡体は、いずれも
連続気孔と独立気孔のある粗面状多孔質の担持体である
から、表面積が大きい、Ｎ2 ＢＥＴ法で測定したところ
によれば、抗火石は２０〜３０ｍ2 ／ｇ、黒曜石発泡体
は１５〜２０ｍ2 ／ｇである。(2) Since both the anti-firestone and the obsidian foam are rough porous support bodies having continuous pores and independent pores, they have a large surface area and are measured by the N 2 BET method. The amount of anti-firestone is 20 to 30 m 2 / g, and that of obsidian foam is 15 to 20 m 2 / g.
【００３０】このため、この発明における光触媒は、こ
れらの担持体に多量に吸着、保持されている。したがっ
て、この発明の光触媒担持組成物の触媒としての能力は
大きい。Therefore, a large amount of the photocatalyst of the present invention is adsorbed and retained on these carriers. Therefore, the ability of the photocatalyst-supporting composition of the present invention as a catalyst is large.
【００３１】（３）抗火石と黒曜石発泡体は、いずれも
耐火性があるから、光触媒担持組成物の製造過程におい
て、光触媒溶液を含浸させて自然乾燥した担持体を４０
０℃〜６００℃の高温で加熱するすることができる。こ
のため、本発明における光触媒は、担持体に強固に担持
されていて容易に剥離しないし、その活性は高い。(3) Since both the pyrotechnics and the obsidian foam have fire resistance, in the process of producing the photocatalyst supporting composition, the supporting body impregnated with the photocatalyst solution and naturally dried is 40%.
It can be heated at a high temperature of 0 ° C to 600 ° C. For this reason, the photocatalyst in the present invention is firmly supported on the carrier, does not easily peel off, and has a high activity.
【００３２】（４）担持体の原料である抗火石は天然の
ものであり、黒曜石発泡体は黒曜石の高温加熱によって
得られるものであるから、原料が比較的安価である。(4) The anti-firestone, which is the raw material of the carrier, is natural, and the obsidian foam is obtained by heating obsidian at a high temperature, so that the raw material is relatively inexpensive.
【００３３】[0033]
【発明の実施の形態】以下、この発明の実施の形態を実
施例によって説明する。Embodiments of the present invention will be described below with reference to embodiments.
【００３４】（実施例１）アマギ導熱工業社製の天然抗
火石（粒径２mmφ）３００ｇと、ゾル・ゲル法による有
機チタン化合物溶液（自社製）９０ｇを混合して、天然
抗火石に同溶液を含浸させ、直ちに、自然乾燥した。(Example 1) 300 g of natural anti-fire stone (particle diameter: 2 mmφ) manufactured by Amagi Denki Kogyo Co., Ltd. and 90 g of an organic titanium compound solution (manufactured by the company) obtained by the sol-gel method were mixed and mixed with the natural anti-fire stone. And air-dried immediately.
【００３５】ついで、乾燥した天然抗火石を加熱炉で４
６０℃まで昇温し、この温度で１時間加熱して中間組成
物である光触媒担持組成物を得た。Then, the dried natural anti-firestone was heated in a heating furnace for 4 hours.
The temperature was raised to 60 ° C., and the mixture was heated at this temperature for 1 hour to obtain a photocatalyst-supporting composition as an intermediate composition.
【００３６】ついで、天然抗火石への光触媒（ＴｉＯ
2 ）の担持を均一にするために、上記光触媒担持組成物
に上記有機チタン化合物溶液４５ｇを添加混合し、同上
の操作を行って、最終的に、実施例１の粒状の光触媒担
持組成物を得た。Next, a photocatalyst (TiO 2) for natural anti-firestone is used.
2 ) In order to make the loading of the photocatalyst composition uniform, 45 g of the above-mentioned organic titanium compound solution was added to and mixed with the above-mentioned photocatalyst loading composition, and the same operation was carried out. Finally, the particulate photocatalyst loading composition of Example 1 was obtained. Obtained.
【００３７】上述のゾル・ゲル法による有機チタン化合
物溶液は、次の要領で調製した。The organic titanium compound solution prepared by the above sol-gel method was prepared in the following manner.
【００３８】（１）テトライソプロピルオルソチタナー
トを４５ｇ（モル比１）とエチルアルコールを７０ｇ
（モル比１０）を均一になるまでゆるやかに攪拌混合し
て第１混合液を作った。(1) 45 g of tetraisopropyl orthotitanate (molar ratio: 1) and 70 g of ethyl alcohol
(Molar ratio 10) was gently stirred and mixed until uniform to prepare a first mixed solution.
【００３９】（２）アセチルアセトンを７．５ｇ（モル
比１）とエチルアルコールを３５ｇ（モル比５）を加え
て均一になるまで攪拌混合して第２混合液をつくった。(2) A second mixed solution was prepared by adding 7.5 g (molar ratio 1) of acetylacetone and 35 g (molar ratio 5) of ethyl alcohol and stirring until uniform.
【００４０】（３）第１混合液と第２混合液を混合し、
さらにゆるやかに６０分間攪拌した。(3) mixing the first mixed liquid and the second mixed liquid,
The mixture was further stirred gently for 60 minutes.
【００４１】（４）両液の混合液に、３７％塩酸５ｇと
エチルアルコール８ｇの混合液を、少量ずつ滴下して、
約ｐＨ２になるように調整した。(4) A mixture of 5 g of 37% hydrochloric acid and 8 g of ethyl alcohol was added dropwise to the mixture of both solutions little by little.
It was adjusted to about pH2.
【００４２】（５）調整後の混合液を３０分間攪拌し、
所期の有機チタン化合物溶液を得た。(5) The mixed solution after the adjustment is stirred for 30 minutes,
The desired organic titanium compound solution was obtained.
【００４３】次に、実施例１の光触媒担持組成物の粒子
Ｒを、図１に示す油水分離槽Ｓの第１〜第４分離槽１〜
４（容積２ｍ3 ）に、０．１ｍ3 ／ｈｒの流量で、流入
してくる１０ｍｇ／ｌの油を含んだ排水５の中に、オイ
ルブロック材として投入し、その上から紫外線ランプ６
の光を照射して、連続１２時間にわたって、その浄化能
力を試験した。粒子Ｒの投入量は、各分離槽１〜４の水
面の全面を覆う程度とした。Next, the particles R of the photocatalyst-supporting composition of Example 1 were separated from the first to fourth separation tanks 1 to 4 of the oil / water separation tank S shown in FIG.
4 (volume 2 m 3 ) at a flow rate of 0.1 m 3 / hr into a drain 5 containing 10 mg / l of incoming oil as an oil block material, and an ultraviolet lamp 6 from above.
And tested its purifying ability for a continuous 12 hours. The input amount of the particles R was set so as to cover the entire water surface of each of the separation tanks 1 to 4.
【００４４】なお、図中、７は各分離槽１〜４を連結す
る導水管（エルボ）、８は排水の流入管、９は排水の流
出口である。In the figure, reference numeral 7 denotes a water pipe (elbow) connecting the separation tanks 1 to 4, 8 denotes an inflow pipe for drainage, and 9 denotes an outlet for drainage.
【００４５】試験後に粒子Ｒの状態を調べたところ、各
槽１〜４の底に沈降したものは認められなかった。ま
た、粒子Ｒから光触媒が剥離した様子も殆んど認められ
なかった。さらに、流出口９から流出する排水について
調べたところ、その中には油分は５ｍｇ／ｌ以下（検出
限界以下）となり、ほぼ完全に浄化されていることが分
かった。When the state of the particles R was examined after the test, no sedimentation at the bottom of each of the tanks 1 to 4 was found. Also, almost no photocatalyst peeled off from the particles R. Further, when the wastewater flowing out from the outlet 9 was examined, it was found that the oil content therein was 5 mg / l or less (below the detection limit), indicating that the oil was almost completely purified.
【００４６】（実施例２）光触媒の担持体として芙蓉パ
ーライト社製の黒曜石発泡体（粒径２mmφ）を使用した
以外は、実施例１と同じ要領で、実施例２の粒状の光触
媒担持組成物を得た。(Example 2) The particulate photocatalyst supporting composition of Example 2 was used in the same manner as in Example 1 except that an obsidian foam (particle size: 2 mmφ) manufactured by Fuyo Perlite Co. was used as the photocatalyst carrier. I got
【００４７】得られた光触媒担持組成物の粒子につい
て、実施例１の場合と同じ要領で、排水の浄化試験を行
ったところ、ほぼ同様の結果が得られた。The obtained photocatalyst-carrying composition particles were subjected to a wastewater purification test in the same manner as in Example 1, and almost the same results were obtained.
【００４８】[0048]
【発明の効果】以上説明したように、この発明の光触媒
担持組成物は、上述のような構成としたので、次の効果
を奏する。As described above, the photocatalyst-carrying composition of the present invention has the following effects because of the above-mentioned constitution.
【００４９】（１）水を殆ど吸収せず、水に浮くので、
油を吸着した後も水中に沈まない。このため、水に浮遊
した油を効果的に吸着することができる。(1) Since it hardly absorbs water and floats on water,
Does not sink in water after adsorbing oil. Therefore, the oil floating in the water can be effectively adsorbed.
【００５０】（２）油を吸着しても沈まないので、光を
利用することによって、水に浮遊した油の吸着と分解を
繰り返し行うことができる。このため、回収や焼却処分
等を必要とせず、半永久的に使用できる。(2) Since oil does not sink even if it is adsorbed, the use of light makes it possible to repeatedly adsorb and decompose oil suspended in water. Therefore, it can be used semi-permanently without the need for collection or incineration.
【００５１】（３）光触媒を多量かつ強固に担持してい
るので、触媒としての能力と活性が高い。(3) Since the photocatalyst is supported in a large amount and firmly, the ability and activity as a catalyst are high.
【００５２】（４）担持体である石英粗面岩は安価に入
取できるので、製造コストが安くつく。(4) Since the quartz trachyte, which is the carrier, can be taken in at low cost, the production cost is low.
【００５３】（５）海域の流出重油、貯水池、水たまり
などに浮上する油の吸着と分解、あるいは、外部循環式
三相流動床排水処理に有効な触媒として使用できる。(5) It can be used as a catalyst effective for adsorbing and decomposing oil floating on seawater spilled heavy oil, reservoirs, puddles, etc., or for external circulation type three-phase fluidized bed drainage treatment.
【００５４】また、この発明の光触媒担持組成物の製造
方法によれば、上述のような特徴を有する光触媒担持組
成物を得ることができる。Further, according to the method for producing a photocatalyst-supporting composition of the present invention, a photocatalyst-supporting composition having the above-mentioned characteristics can be obtained.
【図１】 実施例１の光触媒担持組成物の浄化能力を試
験するために使用した油水分離槽の断面図FIG. 1 is a cross-sectional view of an oil-water separation tank used for testing the purification ability of the photocatalyst-supporting composition of Example 1.
Ｓ 油水分離槽 Ｒ 光触媒担持組成物の粒子 １ 第１分離槽 ２ 第２分離槽 ３ 第３分離槽 ４ 第４分離槽 ５ 排水 ６ 紫外線ランプ ７ 導水管 ８ 流入管 ９ 流出口 S Oil / water separation tank R Particles of photocatalyst carrying composition 1 First separation tank 2 Second separation tank 3 Third separation tank 4 Fourth separation tank 5 Drainage 6 Ultraviolet lamp 7 Water pipe 8 Inflow pipe 9 Outlet
フロントページの続き Ｆターム(参考） 4D037 AA11 AB06 BA18 CA06 4D051 AA01 AB02 AB03 EA09 EC16 EC19 4G069 AA03 AA08 BA16A BA16B BA18 BA48A BC50B FB09Continued on the front page F term (reference) 4D037 AA11 AB06 BA18 CA06 4D051 AA01 AB02 AB03 EA09 EC16 EC19 4G069 AA03 AA08 BA16A BA16B BA18 BA48A BC50B FB09
Claims (2)
担持してなる光触媒担持組成物。1. A photocatalyst-supporting composition comprising a natural or artificial quartz trachyte to carry out optical contact.
媒担持組成物の製造方法。 （１）天然または人工の石英粗面岩と光触媒溶液を混合
する工程。 （２）前記混合によって光触媒溶液を含浸させた天然ま
たは人工の石英粗面岩を自然乾燥する工程。 （３）自然乾燥した前記石英粗面岩を４００℃〜６００
℃で、５０〜８０分間加熱する工程。2. A method for producing a photocatalyst-supporting composition comprising the following steps (1) to (3). (1) A step of mixing a natural or artificial quartz trachyte with a photocatalytic solution. (2) A step of naturally drying the natural or artificial quartz trachyte impregnated with the photocatalyst solution by the mixing. (3) The naturally dried quartz rough rock is heated at 400 ° C. to 600 ° C.
Heating at 50 ° C. for 50-80 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9766899A JP2000288402A (en) | 1999-04-05 | 1999-04-05 | Photocatalyst-carrying composition and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9766899A JP2000288402A (en) | 1999-04-05 | 1999-04-05 | Photocatalyst-carrying composition and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000288402A true JP2000288402A (en) | 2000-10-17 |
Family
ID=14198425
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024927A1 (en) * | 1999-10-01 | 2001-04-12 | Showa Denko Kabushiki Kaisha | Composite member for deodorization or waste water treatment |
| CN102701536A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Restaurant waste water processing device |
-
1999
- 1999-04-05 JP JP9766899A patent/JP2000288402A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001024927A1 (en) * | 1999-10-01 | 2001-04-12 | Showa Denko Kabushiki Kaisha | Composite member for deodorization or waste water treatment |
| CN102701536A (en) * | 2012-06-28 | 2012-10-03 | 苏州科博思流体科技有限公司 | Restaurant waste water processing device |
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