JPH02298393A - Photo-oxidation treatment method and apparatus - Google Patents
Photo-oxidation treatment method and apparatusInfo
- Publication number
- JPH02298393A JPH02298393A JP11858189A JP11858189A JPH02298393A JP H02298393 A JPH02298393 A JP H02298393A JP 11858189 A JP11858189 A JP 11858189A JP 11858189 A JP11858189 A JP 11858189A JP H02298393 A JPH02298393 A JP H02298393A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fine particles
- ultrafiltration membrane
- treated
- treatment tank
- 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.)
- Granted
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007539 photo-oxidation reaction Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000010419 fine particle Substances 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 30
- 239000004408 titanium dioxide Substances 0.000 abstract description 15
- 239000011148 porous material Substances 0.000 abstract description 8
- 239000008213 purified water Substances 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 8
- 230000001954 sterilising effect Effects 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、二酸化チタンなどの微粒子を触媒とした光
酸化処理方法とその装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a photo-oxidation treatment method using fine particles such as titanium dioxide as a catalyst and an apparatus therefor.
（従来の技術）
プール水等の殺菌には従来塩素などの薬品処理が行なわ
れてきたが、薬品による殺菌処理は人体への影響から手
控えられる傾向にある。(Prior Art) Conventionally, chemical treatments such as chlorine have been used to sterilize pool water, but there is a tendency for chemical sterilization treatments to be refrained from due to the effects they have on the human body.
これに対して、紫外線を利、用した被処理水の殺菌は、
薬品殺菌法と異なり、人体への影響が殆ど無く効果的に
殺菌処理ができるなどの特性があり、種々の生産分野に
応用され、需要は増大されつつある。On the other hand, sterilization of water to be treated using ultraviolet rays
Unlike chemical sterilization methods, it has the characteristics of being able to sterilize effectively with almost no effect on the human body, and is being applied to various production fields, and demand is increasing.
この紫外線を利用した殺菌法として最も効率が良いとさ
れるのは、外周を保護管で被覆した紫外線ランプを両端
を開放した処理タンク内に挿入するとともに、処理タン
クの両端には被処理水の給水管乃至排水管に接続するよ
うにした紫外線殺菌装置を使用して、被処理水が紫外線
ランプの周囲を通過する間に殺菌を行なう方法である。The most efficient sterilization method using ultraviolet light is to insert an ultraviolet lamp whose outer periphery is covered with a protective tube into a treatment tank with both ends open. This method uses an ultraviolet sterilizer connected to a water supply pipe or a drain pipe to sterilize the water to be treated while it passes around an ultraviolet lamp.
一方、これら紫外線に照射される被処理水中に二酸化チ
タン等の微粒子を懸濁させると、これら微粒子の触媒作
用により更に効果的な殺菌処理が行なわれることが知ら
れている。On the other hand, it is known that when fine particles such as titanium dioxide are suspended in the water to be treated that is irradiated with these ultraviolet rays, more effective sterilization treatment can be carried out due to the catalytic action of these fine particles.
（発明が解決しようとする課題）
しかしながら、上述のように三方法を組み合わせ、被処
理水中に二酸化チタン等の微粒子を懸濁させて紫外線ラ
ンプの周囲を通過させて殺菌処理を行なう場合には、処
理後の水中から二酸化チタン微粒子を分離、回収するの
が極めて困難であり、またこれら二酸化チタン微粒子を
完全に分離、回収するには大型の分離装置を必要とする
などの難点がある。(Problem to be Solved by the Invention) However, when combining the three methods as described above and performing sterilization treatment by suspending fine particles such as titanium dioxide in the water to be treated and passing it around an ultraviolet lamp, It is extremely difficult to separate and recover titanium dioxide fine particles from treated water, and there are also drawbacks such as the need for a large separation device to completely separate and recover these titanium dioxide fine particles.
この発明は、上記実情に鑑み、被処理水中に二酸化チタ
ン等の微粒子を懸濁させて紫外線ランプの周囲を通過さ
せて紫外線照射処理を行なうに際して処理後の水中に含
まれる二酸化チタン等の微粒子を分離、回収する方法と
その装置を提案することを目的とする。In view of the above-mentioned circumstances, the present invention has been developed to remove fine particles such as titanium dioxide contained in the treated water when performing ultraviolet irradiation treatment by suspending fine particles such as titanium dioxide in water to be treated and passing it around an ultraviolet lamp. The purpose is to propose separation and recovery methods and equipment.
（課題を解決するための手段）
以上の課題を解決するために、この発明では紫外線照射
ランプを挿入した処理槽と限外濾過膜を備えた分離槽を
並設し、処理槽には二酸化チタン等の触媒微粒子を懸濁
させた被処理水を送入し、同時に上記ランプより紫外線
を照射して触媒微粒子により被処理水を浄化、処理し、
次に被処理水を分離槽に送入し、限外濾過膜を通過させ
ることにより被処理水中に含まれる触媒微粒子を捕集し
、更に限外濾過膜には前記被処理水の通水方向とは逆方
向に洗浄水を通水し、限外濾過膜に捕集された触媒微粒
子を分離し１分離された触媒微粒子を含む洗浄水の全部
又は一部を必要とあれば上記処理槽に戻すようにした光
酸化処理方法とその装置を提案するものである。・
（作用）
この発明で使用する限外濾過膜は、例えば溶液中の塩類
、糖類等の低分子物質は透過し、高分子物質を透過させ
ない半透膜であるが、この発明では二酸化ヂタン等の触
媒微粒子を懸濁させた彼処理水は処理槽内で紫外線照射
されて処理され、次に被処理水は分離槽に送入して限外
濾過膜を通過させることにより、触媒微粒子は限外濾過
膜の細孔内に捕集される。更に限外濾過膜には前記彼処
理水の通水方向とは逆方向に洗浄水を通水すると、限外
濾過膜の細孔内に捕集された触媒微粒子は分離される。(Means for Solving the Problems) In order to solve the above problems, in this invention, a treatment tank in which an ultraviolet irradiation lamp is inserted and a separation tank equipped with an ultrafiltration membrane are arranged side by side, and the treatment tank is made of titanium dioxide. The water to be treated is fed with catalyst fine particles suspended therein, and at the same time, ultraviolet rays are irradiated from the lamp to purify and treat the water with the catalyst fine particles.
Next, the water to be treated is sent to a separation tank and passed through an ultrafiltration membrane to collect catalyst fine particles contained in the water to be treated. Washing water is passed in the opposite direction to separate the catalyst particles collected on the ultrafiltration membrane, and all or part of the washing water containing the separated catalyst particles is passed into the treatment tank if necessary. This paper proposes a photo-oxidation treatment method and an apparatus for the same.・ (Function) The ultrafiltration membrane used in this invention is a semipermeable membrane that allows low-molecular substances such as salts and sugars in a solution to pass through, but does not allow high-molecular substances to pass through. The treated water with catalyst particles suspended in it is treated by irradiation with ultraviolet rays in a treatment tank, and then the water to be treated is sent to a separation tank and passed through an ultrafiltration membrane to limit catalyst particles. Collected within the pores of the outer filtration membrane. Furthermore, when washing water is passed through the ultrafiltration membrane in a direction opposite to the flow direction of the treated water, the catalyst fine particles collected in the pores of the ultrafiltration membrane are separated.
そして、触媒微粒子を含む洗浄水の一部又は全部は例え
ば処理槽に戻して触媒微粒子を再利用するものである。Then, part or all of the washing water containing catalyst fine particles is returned to the treatment tank, for example, to reuse the catalyst fine particles.
即ち、この発明では限外濾過膜を用いて、光酸化処理法
に用いる二酸化チタン等の触媒微粒子を効果的に分離、
回収することができるのである。That is, in this invention, an ultrafiltration membrane is used to effectively separate catalyst fine particles such as titanium dioxide used in the photo-oxidation treatment method.
It can be recovered.
なお、この発明においては限外濾過膜の型式としては、
市販されているチューブラ−型、マルチチューブ型、プ
レート型、スパイラル型、ホローファイバー型などを使
用することができる。In addition, in this invention, the types of ultrafiltration membranes are as follows:
Commercially available tubular type, multi-tube type, plate type, spiral type, hollow fiber type, etc. can be used.
また、紫外線照射ランプとしては、高圧水銀灯、中圧水
銀灯、低圧水銀灯等を被処理水の種類に応じて使用する
ことができる。Further, as the ultraviolet irradiation lamp, a high pressure mercury lamp, a medium pressure mercury lamp, a low pressure mercury lamp, etc. can be used depending on the type of water to be treated.
（実施例） 以下、この発明を図示の実施例に基づいて説明する。(Example) The present invention will be explained below based on illustrated embodiments.
第１図は、この発明の一実施例を示すもので、■は、上
部に給水口２、下部に排水口３を有する処理槽で、処理
槽ｌの外周にはヒータ４が設けられ、処理槽ｌの内部に
はその外周に石英製の保護管５を設けた紫外線ランプ６
を挿入する。７は分ｉｔ ｔｔｙで、分離槽７内にはそ
の中央に両端を開放した通水路８を有する限外濾過膜９
を設け、また分１１Ｆ１７の底部には通水路８の下端に
接続する給水口１０を設け、更に限外濾過膜９の上端部
に対応する分離槽７の上部には排水管１１を設け、該排
水管１１にはポンプ１２を設ける。FIG. 1 shows an embodiment of the present invention, in which ``■'' is a treatment tank having a water supply port 2 at the top and a drain port 3 at the bottom. Inside the tank l, there is an ultraviolet lamp 6 provided with a quartz protection tube 5 around its outer periphery.
Insert. 7 is a minute tty, and inside the separation tank 7 there is an ultrafiltration membrane 9 having a water passage 8 with both ends open in the center thereof.
In addition, a water supply port 10 connected to the lower end of the water passage 8 is provided at the bottom of the portion 11F17, and a drain pipe 11 is provided at the upper part of the separation tank 7 corresponding to the upper end of the ultrafiltration membrane 9. A pump 12 is provided in the drain pipe 11.
一方、処理槽ｌの排水口３と分離槽７の給水口１１との
間には下部連絡路１３を設け、連絡路１３には圧送ポン
プ１４を介在させる。また、限外濾過膜９の通水路８の
上端と処理槽ｌの上部との間には上部連絡路１５を設け
、更に下部連絡路１３にはバルブｒ６によって切り替え
られる分岐路１７を設け、該分岐路１７の上端を上部連
絡路１５に接続する。On the other hand, a lower communication path 13 is provided between the drain port 3 of the treatment tank 1 and the water supply port 11 of the separation tank 7, and a pressure pump 14 is interposed in the communication path 13. Further, an upper communication passage 15 is provided between the upper end of the water passage 8 of the ultrafiltration membrane 9 and the upper part of the processing tank l, and a branch passage 17 that is switched by a valve r6 is provided in the lower communication passage 13. The upper end of the branch path 17 is connected to the upper communication path 15.
以上のような光酸化処理装置において、被処理水は給水
口２より処理槽１に供給され、ここで二酸化チタン等の
触媒微粒子１８．・・・加えて、水中に懸濁させる。ま
た、ヒータ４により加温され、このような状態で紫外線
ランプ６に沿って流下する。この間、紫外線照射を受け
るとともに、二酸化チタンの微粒子の触媒作用により被
処理水中の有機物の分解、殺菌処理等が行なわれる。In the photo-oxidation treatment apparatus as described above, the water to be treated is supplied from the water supply port 2 to the treatment tank 1, where catalyst fine particles 18. ...Additionally, suspend it in water. Further, it is heated by the heater 4 and flows down along the ultraviolet lamp 6 in this state. During this time, the water is irradiated with ultraviolet rays, and the organic matter in the water to be treated is decomposed and sterilized by the catalytic action of fine particles of titanium dioxide.
処理された水は、圧送ポンプ１４により下部連絡路１３
を通って限外濾過膜９の通水路８に送られる０通水路８
に送られた水の一部は限外濾過膜９の細孔９ａを通って
限外濾過膜９の外側に脱出し、この間に水中に含まれる
触媒微粒子１ｇ、・・・は細孔９ａに捕集される。限外
濾過膜９を脱出した水は排水管１１を通って外部に排出
される。The treated water is transferred to the lower communication channel 13 by the pressure pump 14.
0 water passage 8 which is sent through the water passage 8 to the water passage 8 of the ultrafiltration membrane 9
A part of the water sent to the ultrafiltration membrane 9 passes through the pores 9a of the ultrafiltration membrane 9 and escapes to the outside of the ultrafiltration membrane 9, and during this time, 1 g of catalyst particles contained in the water enter the pores 9a. be captured. Water that has escaped the ultrafiltration membrane 9 is discharged to the outside through a drain pipe 11.
また、通水路８に送られた水の残部は上部連絡路１５を
通って処理槽ｌに戻される。なお、排水管１１を通って
外部に排出される水の量と処理槽１に戻される水の量の
比は例えば、６：４とする。Further, the remainder of the water sent to the water passage 8 is returned to the treatment tank l through the upper communication passage 15. Note that the ratio of the amount of water discharged to the outside through the drain pipe 11 and the amount of water returned to the treatment tank 1 is, for example, 6:4.
次に、洗浄水をポンプ１２により限外濾過膜９の外側に
圧送する。圧送された洗浄水は細孔９ａを通って通水路
８内に圧送されるが、この間に細孔９ａに捕集されてい
た触媒微粒子１８．・・・を開放する。Next, the washing water is pumped to the outside of the ultrafiltration membrane 9 by the pump 12. The flushing water is forced into the passageway 8 through the pores 9a, but during this time the catalyst fine particles 18. which had been collected in the pores 9a. ...to be released.
このようして触媒微粒子１８．・・・を含む洗浄水が通
水路８に送られるが、これはそのまま外部に取り出して
触媒微粒子１８．・・・を回収しても良いが、バルブ１
６を開いてこの洗浄水を分岐路１７、上部連絡路１５を
通って処理槽１に戻すようにしてもよい。In this way, catalyst fine particles 18. Washing water containing . ... may be collected, but valve 1
6 may be opened and this washing water may be returned to the treatment tank 1 through the branch path 17 and the upper communication path 15.
（発明の効果）
以上型するに、この発明によれば被処理水中に二酸化チ
タン等の微粒子を懸濁させて紫外線ランプの周囲を通過
させて紫外線照射処理を行なうに際して処理後の水中に
含まれる二酸化チタン等の微粒子を分離、回収が効率的
に行なうことができる。(Effects of the Invention) To summarize, according to the present invention, when fine particles such as titanium dioxide are suspended in the water to be treated and are passed around an ultraviolet lamp to perform ultraviolet irradiation treatment, the particles contained in the water after treatment are carried out. Fine particles such as titanium dioxide can be efficiently separated and recovered.
第１図は、この発明の一実施例を示す概略図、第２図は
同上の要部拡大図である。
図中、１は処理槽、７は分離槽、９は限外濾過膜、１８
．・・・は触媒微粒子。FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is an enlarged view of the same essential parts. In the figure, 1 is a treatment tank, 7 is a separation tank, 9 is an ultrafiltration membrane, 18
．． ... is catalyst fine particles.
Claims (2)
を備えた分離槽を並設し、処理槽には触媒微粒子を懸濁
させた被処理水を送入し、同時に上記ランプより紫外線
を照射して触媒微粒子により被処理水を浄化、処理し、
次に被処理水を分離槽に送入し、限外濾過膜を通過させ
ることにより被処理水中に含まれる触媒微粒子を捕集し
、更に限外濾過膜には前記被処理水の通水方向とは逆方
向に洗浄水を通水し、限外濾過膜に捕集された触媒微粒
子を分離し、分離された触媒微粒子を含む洗浄水の全部
又は一部を必要とあれば上記処理槽に戻すようにしたこ
とを特徴とする光酸化処理方法。(1) A treatment tank with an ultraviolet irradiation lamp inserted and a separation tank equipped with an ultrafiltration membrane are installed side by side, and water to be treated in which catalyst fine particles are suspended is fed into the treatment tank, and at the same time, ultraviolet rays are emitted from the above lamp. The water to be treated is purified and treated by catalytic fine particles by irradiation with
Next, the water to be treated is sent to a separation tank and passed through an ultrafiltration membrane to collect catalyst fine particles contained in the water to be treated. Washing water is passed in the opposite direction to separate the catalyst particles collected on the ultrafiltration membrane, and all or part of the washing water containing the separated catalyst particles is passed into the treatment tank if necessary. A photo-oxidation treatment method characterized by returning the oxidation.
膜を備えた分離槽を圧送ポンプを介して並設するように
したことを特徴とする光酸化処理装置。(2) A photooxidation treatment apparatus characterized in that a treatment tank into which an ultraviolet irradiation lamp is inserted and a separation tank equipped with an ultrafiltration membrane are arranged side by side via a pressure pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118581A JPH0630762B2 (en) | 1989-05-15 | 1989-05-15 | Photooxidation treatment method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1118581A JPH0630762B2 (en) | 1989-05-15 | 1989-05-15 | Photooxidation treatment method and apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02298393A true JPH02298393A (en) | 1990-12-10 |
| JPH0630762B2 JPH0630762B2 (en) | 1994-04-27 |
Family
ID=14740136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1118581A Expired - Fee Related JPH0630762B2 (en) | 1989-05-15 | 1989-05-15 | Photooxidation treatment method and apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630762B2 (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523680A (en) * | 1991-07-17 | 1993-02-02 | Raizaa Kogyo Kk | Treatment and device for photooxidation |
| JPH0523681A (en) * | 1991-07-17 | 1993-02-02 | Raizaa Kogyo Kk | Treatment and device for photooxidation |
| JPH06328068A (en) * | 1993-05-20 | 1994-11-29 | Agency Of Ind Science & Technol | Waste water treatment device using photocatalyst |
| US5622628A (en) * | 1993-12-07 | 1997-04-22 | Tioxide Group Services Limited | Titanium dioxide slurries concentration |
| JP2003010653A (en) * | 2001-06-29 | 2003-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | Water treater |
| CN103224266A (en) * | 2013-04-03 | 2013-07-31 | 宁波大学 | Ultraviolet light catalytic large capacity waste water degradation device with built-in agglomerate material-dissipation function |
| CN103241871A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Method for expanding capacity of reactor for promotion of medium recycling link and photocatalytic wastewater degradation |
| CN103241797A (en) * | 2013-04-03 | 2013-08-14 | 宁波大学 | Ultraviolet photocatalysis wastewater degradation reactor expanding method for dissipating catalyst agglomeration in situ |
| CN103241873A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Reactor capacity expansion method with upgraded catalyst interception mechanism for photocatalytic degradation of wastewater |
| CN103241878A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | High-capacity reactor for fine interception of catalyst particles and photocatalytic wastewater degradation |
| CN103288256A (en) * | 2013-04-03 | 2013-09-11 | 宁波大学 | Capacity expansion method for microwave photocatalysis waste water degradation reactor capable of powerfully resisting catalyst agglomeration |
| CN103288259A (en) * | 2013-04-12 | 2013-09-11 | 宁波大学 | Reactor capacity-expanding method with self-inspection function for main agglomeration inducement parameter of wastewater photodegradation catalyst |
| CN103241874B (en) * | 2013-04-18 | 2015-12-02 | 宁波大学 | The Microwave photocatalytic wastewater degradation device expansion method that catalyst interception link is perfect again |
| CN103241875B (en) * | 2013-04-18 | 2015-12-09 | 宁波大学 | The High-capacity waste water degradation reactor that photocatalyst interception reuse mechanism is improved again |
| JP2018043233A (en) * | 2016-09-09 | 2018-03-22 | パナソニックＩｐマネジメント株式会社 | Method and apparatus for liquid treatment |
| US10280093B2 (en) | 2015-09-25 | 2019-05-07 | Panasonic Intellectual Property Management Co., Ltd. | Water treatment method, water treatment apparatus, and non-transitory computer-readable recording medium storing program |
| US10472253B2 (en) | 2016-09-08 | 2019-11-12 | Panasonic Intellectual Property Management Co., Ltd. | Liquid treatment method and liquid treatment apparatus |
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| JPS6342792A (en) * | 1986-08-07 | 1988-02-23 | Hosokawa Micron Kk | Method for cleaning liquid by utilizing titanium oxide |
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| JPS60187322A (en) * | 1984-03-06 | 1985-09-24 | Toyota Central Res & Dev Lab Inc | Purifying method of waste |
| JPS62190694U (en) * | 1986-05-26 | 1987-12-04 | ||
| JPS6342792A (en) * | 1986-08-07 | 1988-02-23 | Hosokawa Micron Kk | Method for cleaning liquid by utilizing titanium oxide |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523680A (en) * | 1991-07-17 | 1993-02-02 | Raizaa Kogyo Kk | Treatment and device for photooxidation |
| JPH0523681A (en) * | 1991-07-17 | 1993-02-02 | Raizaa Kogyo Kk | Treatment and device for photooxidation |
| JPH06328068A (en) * | 1993-05-20 | 1994-11-29 | Agency Of Ind Science & Technol | Waste water treatment device using photocatalyst |
| US5622628A (en) * | 1993-12-07 | 1997-04-22 | Tioxide Group Services Limited | Titanium dioxide slurries concentration |
| AU680697B2 (en) * | 1993-12-07 | 1997-08-07 | Tioxide Group Services Limited | Titanium dioxide slurries |
| JP2003010653A (en) * | 2001-06-29 | 2003-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | Water treater |
| CN103224266A (en) * | 2013-04-03 | 2013-07-31 | 宁波大学 | Ultraviolet light catalytic large capacity waste water degradation device with built-in agglomerate material-dissipation function |
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| CN103241797A (en) * | 2013-04-03 | 2013-08-14 | 宁波大学 | Ultraviolet photocatalysis wastewater degradation reactor expanding method for dissipating catalyst agglomeration in situ |
| CN103224266B (en) * | 2013-04-03 | 2015-11-25 | 宁波大学 | Carry the Large-capacity ultraviolet photocatalytic waste water degradation device of aggregate dissipation function |
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| CN103288256A (en) * | 2013-04-03 | 2013-09-11 | 宁波大学 | Capacity expansion method for microwave photocatalysis waste water degradation reactor capable of powerfully resisting catalyst agglomeration |
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| CN103288259B (en) * | 2013-04-12 | 2015-11-25 | 宁波大学 | The reactor expansion method of its main inducement parameter self-inspection of reuniting of wastewater light degradation catalyst |
| CN103241875B (en) * | 2013-04-18 | 2015-12-09 | 宁波大学 | The High-capacity waste water degradation reactor that photocatalyst interception reuse mechanism is improved again |
| CN103241873A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Reactor capacity expansion method with upgraded catalyst interception mechanism for photocatalytic degradation of wastewater |
| CN103241871A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | Method for expanding capacity of reactor for promotion of medium recycling link and photocatalytic wastewater degradation |
| CN103241874B (en) * | 2013-04-18 | 2015-12-02 | 宁波大学 | The Microwave photocatalytic wastewater degradation device expansion method that catalyst interception link is perfect again |
| CN103241878B (en) * | 2013-04-18 | 2015-12-09 | 宁波大学 | The photocatalytic wastewater degradation high-capacity reactor of meticulous interception catalyst particles |
| CN103241878A (en) * | 2013-04-18 | 2013-08-14 | 宁波大学 | High-capacity reactor for fine interception of catalyst particles and photocatalytic wastewater degradation |
| CN103241873B (en) * | 2013-04-18 | 2016-05-11 | 宁波大学 | The reactor expansion method of its catalyst interception mechanism upgrading of waste water photocatalytic degradation |
| CN103241871B (en) * | 2013-04-18 | 2016-06-22 | 宁波大学 | Vehicle reclaims the photocatalytic waste water degradation reactor expansion method that link promotes |
| US10280093B2 (en) | 2015-09-25 | 2019-05-07 | Panasonic Intellectual Property Management Co., Ltd. | Water treatment method, water treatment apparatus, and non-transitory computer-readable recording medium storing program |
| US10889514B2 (en) | 2016-01-08 | 2021-01-12 | Panasonic Intellectual Property Management Co., Ltd. | Water treatment method and water treatment apparatus |
| US10472253B2 (en) | 2016-09-08 | 2019-11-12 | Panasonic Intellectual Property Management Co., Ltd. | Liquid treatment method and liquid treatment apparatus |
| JP2018043233A (en) * | 2016-09-09 | 2018-03-22 | パナソニックＩｐマネジメント株式会社 | Method and apparatus for liquid treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0630762B2 (en) | 1994-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |