JPH06277660A - Water treatment apparatus - Google Patents

Water treatment apparatus

Info

Publication number
JPH06277660A
JPH06277660A JP5065231A JP6523193A JPH06277660A JP H06277660 A JPH06277660 A JP H06277660A JP 5065231 A JP5065231 A JP 5065231A JP 6523193 A JP6523193 A JP 6523193A JP H06277660 A JPH06277660 A JP H06277660A
Authority
JP
Japan
Prior art keywords
ozone
water
pipe
ultraviolet
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
Application number
JP5065231A
Other languages
Japanese (ja)
Other versions
JPH084784B2 (en
Inventor
Itsuo Uragami
逸男 浦上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chiyoda Kohan Co Ltd
Original Assignee
Chiyoda Kohan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chiyoda Kohan Co Ltd filed Critical Chiyoda Kohan Co Ltd
Priority to JP5065231A priority Critical patent/JPH084784B2/en
Publication of JPH06277660A publication Critical patent/JPH06277660A/en
Publication of JPH084784B2 publication Critical patent/JPH084784B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To perform good water treatment by sufficiently developing the effects of both of an ultraviolet irradiation device and an ozone reactor. CONSTITUTION:An ozone blowing diffusion pipe 11 is provided to the lower part of an ozone reaction tank 1 being a stainless steel tank or cylinder 10 and a water sending pipe 12 is provided to the upper part of the tank 1 while a drain pipe 13 is provided to the lower part thereof. Treated water flows from the upper part of the tank 1 to the lower part thereof to be opposed to ozone and ozone is efficiently dissolved in the treated water. Ozone dissolved in the treated water oxidizes and decomposes org. matter in water and, thereafter, the treated water is discharged from the drain pipe 13 to be supplied to an ultraviolet irradiation device 2 being an external illumination type flowing water type sterilizing device having a water passing pipe 21 provided to the central part thereof. The drain pipe 13 from the ozone reaction tank 1 is connected to the lower part of the water passing pipe 21 and an outlet pipe 22 taking out treated water is connected to the upper part thereof and a plurality of ultraviolet lamps 23 are provided to the outer periphery of the water passing pipe 21.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、修景用水、人工池のア
オコ防止、下水処理、河川・湖沼などの有機物で汚染さ
れた水の浄化等に利用される水処理装置に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment device used for scenic water, prevention of water-blowing in artificial ponds, sewage treatment, purification of water contaminated with organic substances such as rivers and lakes.

【0002】[0002]

【従来の技術】オゾンは強い酸化力を有しており、これ
を利用して殺菌や有機物分解等に広く利用されている。
このような用途としてし尿処理水の浄化(脱色)は有名
であるが、最近ではプールや上水の処理などにも幅広く
展開されている。
2. Description of the Related Art Ozone has a strong oxidizing power and is widely used for sterilization and decomposition of organic substances.
The purification (decolorization) of treated human waste water is well known as such an application, but recently it has been widely applied to the treatment of pools and tap water.

【0003】ところがオゾンの酸化力には限界があり、
単結合(C−C)を持つ有機物は分解できない。またオ
ゾンによる副生成物(有害物質である場合が多い)や、
オゾン自身が毒性を持っているので、処理後には排オゾ
ン装置(活性炭など)が必要になるなど、適用に当たっ
ての問題が多い。
However, there is a limit to the oxidizing power of ozone,
Organic substances having a single bond (C-C) cannot be decomposed. Also, by-products from ozone (often a harmful substance),
Since ozone itself has toxicity, there are many problems in application such as the need for an exhaust ozone device (activated carbon etc.) after the treatment.

【0004】これに対して、紫外線とオゾンを併用する
と、オゾンが紫外線で分解されて、より酸化力の強いヒ
ドロキシラジカル(OH・)が生成し、それにより有機
物を完全に分解することが可能になる。 O3 ─(254nm) →O2 +O・ O・+H2 O→2OH・(ヒドロキシラジカル)
On the other hand, when ultraviolet rays and ozone are used in combination, ozone is decomposed by ultraviolet rays to generate hydroxy radicals (OH.) Having a stronger oxidizing power, which makes it possible to completely decompose organic substances. Become. O 3 ─ (254nm) → O 2 + O ・ O ・ + H 2 O → 2OH ・ (hydroxy radical)

【0005】また処理水中の残存オゾンを、紫外線によ
って完全に分解することができ、他の排オゾン装置を設
ける必要がなく、経済的である。そこでこのような紫外
線とオゾンを併用した水処理装置として以下のような装
置が提案された(実公昭57−8958号公報参照)。
Further, residual ozone in the treated water can be completely decomposed by ultraviolet rays, and it is economical because it is not necessary to provide another waste ozone device. Therefore, the following apparatus has been proposed as such a water treatment apparatus using both ultraviolet rays and ozone (see Japanese Utility Model Publication No. 57-8958).

【0006】すなわち図2において、石英ガラス円筒管
51の中心に水銀ランプ52を設け、この石英ガラス円
筒管51の外周を廃水槽53で囲む。この石英ガラス円
筒管51の一端に酸素あるいは空気の送気管54を接続
し、他端には例えばシリコンゴム栓55を介して散気板
56を設ける。
That is, in FIG. 2, a mercury lamp 52 is provided at the center of the quartz glass cylindrical tube 51, and the outer circumference of the quartz glass cylindrical tube 51 is surrounded by a waste water tank 53. An oxygen or air supply tube 54 is connected to one end of the quartz glass cylindrical tube 51, and an air diffuser plate 56 is provided at the other end through, for example, a silicone rubber plug 55.

【0007】これによって、送気管54から供給された
酸素あるいは空気は、水銀ランプ52と石英ガラス円筒
管51の間隙を通過され、その際に空気中の酸素が水銀
ランプ52からの紫外線の照射によってオゾン化され
る。このオゾンが散気板56から廃水槽53内の廃水中
に噴出される。
As a result, the oxygen or air supplied from the air supply pipe 54 passes through the gap between the mercury lamp 52 and the quartz glass cylindrical pipe 51, and the oxygen in the air is irradiated with ultraviolet rays from the mercury lamp 52 at this time. Ozonized. This ozone is ejected from the diffuser plate 56 into the waste water in the waste water tank 53.

【0008】そして噴出されたオゾンは、廃水槽53内
の廃水中の溶存されると共に、水銀ランプ52から石英
ガラス円筒管51を通じた紫外線の照射によって高度に
活性化され、廃水の処理が行われる。また処理水中の残
存オゾンは、紫外線によって完全に分解される。なお5
7は送水管、58は排水管、59は排気口である。
The ejected ozone is dissolved in the waste water in the waste water tank 53, and is highly activated by the irradiation of ultraviolet rays from the mercury lamp 52 through the quartz glass cylindrical tube 51 to treat the waste water. . Moreover, the residual ozone in the treated water is completely decomposed by the ultraviolet rays. 5
Reference numeral 7 is a water supply pipe, 58 is a drain pipe, and 59 is an exhaust port.

【0009】[0009]

【発明が解決しようとする課題】ところがこの装置にお
いて、本来、オゾンと紫外線を併用する目的は、オゾ
ン、紫外線それぞれ単独の効果に加えて、オゾン、紫外
線の併用により生成するヒドロキシラジカルの効果が重
なることである。
In this device, however, the purpose of using ozone and ultraviolet rays together originally is that the effects of hydroxy radicals generated by the combined use of ozone and ultraviolet rays overlap with the effects of ozone and ultraviolet rays alone. That is.

【0010】しかしながら上述の従来の装置のようにオ
ゾン反応槽と紫外線照射部分を同一の装置内に設けた構
造では、オゾン自身の酸化力を発揮する前に紫外線で分
解されてしまい、ヒドロキシラジカルと紫外線のみの効
果しか得られていない。この出願はこのような点に鑑み
て成されたものである。
However, in the structure in which the ozone reaction tank and the ultraviolet irradiation portion are provided in the same device as in the above-described conventional device, the ozone is decomposed by the ultraviolet rays before the oxidizing power of ozone itself is exerted, resulting in a hydroxyl radical. Only the effect of ultraviolet rays is obtained. This application is made in view of such a point.

【0011】[0011]

【課題を解決するための手段】本発明による第1の手段
は、紫外線とオゾンを併用した水処理装置において、紫
外線照射装置2とオゾン反応装置1とを分離し、上記オ
ゾン反応装置1の後段に上記紫外線照射装置2を設けた
ことを特徴とする水処理装置である。
According to a first means of the present invention, in a water treatment apparatus using both ultraviolet rays and ozone, the ultraviolet irradiation apparatus 2 and the ozone reaction apparatus 1 are separated, and the latter stage of the ozone reaction apparatus 1 is separated. The water treatment device is characterized in that the ultraviolet irradiation device 2 is provided in the.

【0012】本発明による第2の手段は、上記紫外線照
射装置2は、紫外線透過材料で形成された通水管21
と、この通水管の外周に設けられオゾンを発生させる紫
外線ランプ23と、から成ることを特徴とする第1の手
段記載の水処理装置である。
The second means according to the present invention is that the ultraviolet irradiating device 2 comprises a water pipe 21 made of an ultraviolet permeable material.
And an ultraviolet lamp 23 for generating ozone, which is provided on the outer circumference of the water pipe, and is the water treatment device according to the first means.

【0013】[0013]

【作用】これによれば、紫外線照射装置とオゾン反応装
置とを分離したことによって、それぞれ効果を充分に発
揮して、良好な水処理を行うことができる。
According to this, since the ultraviolet irradiation device and the ozone reaction device are separated, the respective effects can be sufficiently exerted and good water treatment can be performed.

【0014】[0014]

【実施例】本発明による水処理装置の概略図を図1に示
す。この図において、装置はオゾン反応槽1と、紫外線
照射装置(外照式の流水型殺菌装置)2から成る。オゾ
ン反応槽1はステンレス製のタンクあるいはシリンダー
10であり、下部にはオゾン吹き込み用の散気管11が
設けられる。
EXAMPLE A schematic view of a water treatment apparatus according to the present invention is shown in FIG. In this figure, the apparatus comprises an ozone reaction tank 1 and an ultraviolet irradiation device (externally illuminated running water type sterilizer) 2. The ozone reaction tank 1 is a stainless steel tank or a cylinder 10, and an ozone diffusing pipe 11 is provided at the bottom thereof.

【0015】またオゾン反応槽1の上部に送水管12、
下部に排水管13が設けられ、処理水は上部から下部へ
流れてオゾンと対向され、効率よく溶解が行われる。さ
らにオゾン反応槽1の上部には排気口14が設けられ、
排ガスの処理装置(図示せず)に接続される。そして処
理水に溶解したオゾンは水中の有機物を酸化分解し、そ
の後処理水は排水管13から排出されて紫外線照射装置
2に供給される。
Further, a water pipe 12 is provided above the ozone reaction tank 1.
A drain pipe 13 is provided in the lower part, and the treated water flows from the upper part to the lower part to face the ozone, and is efficiently dissolved. Further, an exhaust port 14 is provided above the ozone reaction tank 1,
It is connected to an exhaust gas treatment device (not shown). Then, ozone dissolved in the treated water oxidizes and decomposes organic matter in the water, and then the treated water is discharged from the drain pipe 13 and supplied to the ultraviolet irradiation device 2.

【0016】紫外線照射装置2は外照式の流水型殺菌装
置であり、中央部に通水管21が設けられる。この通水
管21の下部にオゾン反応槽1からの排水管13が接続
され、上部に処理後の水を取り出す出水管22が接続さ
れる。さらに通水管21の外周に複数の紫外線ランプ2
3が設けられている。
The ultraviolet irradiator 2 is an externally illuminated running water type sterilizer, and a water pipe 21 is provided in the center thereof. A drain pipe 13 from the ozone reaction tank 1 is connected to a lower portion of the water passage pipe 21, and a water outlet pipe 22 for taking out treated water is connected to an upper portion thereof. Further, a plurality of ultraviolet lamps 2 are provided on the outer circumference of the water pipe 21.
3 is provided.

【0017】この装置において、通水管21の素材には
紫外線透過性の材料が使用される。従ってオゾン反応槽
1からのオゾンを含んだ処理水は、通水管21の中で紫
外線の照射によってオゾンが分解され、ヒドロキシラジ
カルにより有機物の分解を完全なものにする。また処理
水中に残留するオゾンも、紫外線の照射によって完全に
分解され、無害なものにされる。これによって浄化され
た水が出水管22から取り出される。
In this apparatus, a material transparent to ultraviolet rays is used as the material of the water passage 21. Therefore, in the treated water containing ozone from the ozone reaction tank 1, ozone is decomposed by irradiation of ultraviolet rays in the water passage 21, and the organic substances are completely decomposed by hydroxy radicals. Further, the ozone remaining in the treated water is completely decomposed by irradiation of ultraviolet rays and made harmless. The water purified by this is taken out from the water discharge pipe 22.

【0018】なお特に上述の通水管21に使用される紫
外線透過性の材料としては、フッ素樹脂を使用すれば水
の汚れが付着しにくく好適である。またフッ素樹脂はオ
ゾンにも強く、さらにオゾンを発生させる紫外線(185n
m) は透過しないので、処理水中の酸素をオゾン化する
ことがなく好適である。
Particularly, as the ultraviolet ray permeable material used for the above water passage pipe 21, if a fluororesin is used, it is preferable that water stains are less likely to adhere. Fluororesin is also strong against ozone, and ultraviolet rays (185n
Since m) does not permeate, it is suitable because it does not ozone the oxygen in the treated water.

【0019】また紫外線照射装置では、ランプとして1
85nmと254nmを放射するオゾン発生用ランプが
多く用いられている。ここで各波長には、下記のような
関係があるため、ランプでオゾンの発生と分解を同時に
行うことができる。 O2 ─(185nm) →O33 ─(254nm) →O2
Further, in the ultraviolet irradiation device, the lamp 1
Lamps for ozone generation that emit 85 nm and 254 nm are often used. Since the respective wavelengths have the following relationships, ozone can be generated and decomposed at the same time by the lamp. O 2 ─ (185 nm) → O 3 O 3 ─ (254 nm) → O 2

【0020】そこで紫外線ランプ23の周囲に密封構造
24が設けられ、この密封構造24の下部に酸素あるい
は空気の供給される給気管25が設けられ、上部に送気
管26が設けられる。これによって給気管25から供給
された酸素あるいは空気は、紫外線ランプ23と密封構
造24及び通水管21の間隙を通過され、その際に空気
中の酸素が紫外線ランプ23からの紫外線の照射によっ
てオゾン化される。そしてこのオゾンが、送気管26を
通じてオゾン反応槽1の散気管11に供給される。
Therefore, a sealing structure 24 is provided around the ultraviolet lamp 23, an air supply pipe 25 to which oxygen or air is supplied is provided below the sealing structure 24, and an air supply pipe 26 is provided above. As a result, the oxygen or air supplied from the air supply pipe 25 passes through the gap between the ultraviolet lamp 23, the sealing structure 24, and the water passage pipe 21. At that time, oxygen in the air is ozoned by the irradiation of the ultraviolet light from the ultraviolet lamp 23. To be done. Then, this ozone is supplied to the air diffusing pipe 11 of the ozone reaction tank 1 through the air feeding pipe 26.

【0021】こうして上述の装置によれば、紫外線照射
装置2とオゾン反応装置1とを分離したことによって、
それぞれ効果を充分に発揮して、良好な水処理を行うこ
とができるものである。
Thus, according to the above-mentioned apparatus, by separating the ultraviolet irradiation device 2 and the ozone reaction device 1,
Each of them can sufficiently exert the effect and perform good water treatment.

【0022】なおオゾン反応槽に送り込むオゾンを、本
件のように紫外線ランプではなく、従来のオゾナイザー
(無声放電方式など)を利用して発生することも可能で
あるが、オゾナイザーはコストが高く、経済的メリット
がない。
It is also possible to generate ozone to be sent to the ozone reaction tank by using a conventional ozonizer (silent discharge system or the like) instead of the ultraviolet lamp as in the present case, but the ozonizer is expensive and economical. There is no merit.

【0023】[0023]

【発明の効果】この発明によれば、紫外線照射装置とオ
ゾン反応装置とを分離したことによって、それぞれ効果
を充分に発揮して、良好な水処理を行うことができるよ
うになった。
According to the present invention, the ultraviolet irradiation device and the ozone reaction device are separated, so that the respective effects can be sufficiently exerted and good water treatment can be performed.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による水処理装置の一例の構成図であ
る。
FIG. 1 is a configuration diagram of an example of a water treatment device according to the present invention.

【図2】先に提案された水処理装置の構成図である。FIG. 2 is a configuration diagram of the previously proposed water treatment device.

【符号の説明】[Explanation of symbols]

1 オゾン反応槽 2 紫外線照射装置(外照式の流水型殺菌装置) 10 シリンダー 11 オゾン吹き込み用の散気管 12 送水管 13 排水管 14 排気口 21 通水管 22 出水管 23 紫外線ランプ 24 密封構造 25 酸素あるいは空気の供給される給気管 26 送気管 1 Ozone Reaction Tank 2 Ultraviolet Irradiation Device (External Illumination Water Flow Sterilizer) 10 Cylinder 11 Diffuser Pipe for Ozone Injection 12 Water Pipe 13 Drain Pipe 14 Exhaust Port 21 Water Pipe 22 Water Pipe 23 Ultraviolet Lamp 24 Sealed Structure 25 Oxygen Air supply pipe to which air is supplied 26 Air supply pipe

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 紫外線とオゾンを併用した水処理装置に
おいて、 紫外線照射装置とオゾン反応装置とを分離し、 上記オゾン反応装置の後段に上記紫外線照射装置を設け
たことを特徴とする水処理装置。
1. A water treatment apparatus using both ultraviolet rays and ozone, wherein the ultraviolet irradiation apparatus and the ozone reaction apparatus are separated, and the ultraviolet irradiation apparatus is provided at a stage subsequent to the ozone reaction apparatus. .
【請求項2】 上記紫外線照射装置は、紫外線透過材料
で形成された通水管と、この通水管の外周に設けられオ
ゾンを発生させる紫外線ランプと、から成ることを特徴
とする請求項1記載の水処理装置。
2. The ultraviolet irradiation device comprises a water pipe formed of an ultraviolet transparent material, and an ultraviolet lamp provided on the outer periphery of the water pipe to generate ozone. Water treatment equipment.
JP5065231A 1993-03-24 1993-03-24 Water treatment equipment Expired - Fee Related JPH084784B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5065231A JPH084784B2 (en) 1993-03-24 1993-03-24 Water treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5065231A JPH084784B2 (en) 1993-03-24 1993-03-24 Water treatment equipment

Publications (2)

Publication Number Publication Date
JPH06277660A true JPH06277660A (en) 1994-10-04
JPH084784B2 JPH084784B2 (en) 1996-01-24

Family

ID=13280939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5065231A Expired - Fee Related JPH084784B2 (en) 1993-03-24 1993-03-24 Water treatment equipment

Country Status (1)

Country Link
JP (1) JPH084784B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617467A1 (en) * 1996-05-02 1997-11-13 Wolfgang Vitt Apparatus for water disinfection comprises ultra violet emitters in quartz tube
JPH10295784A (en) * 1997-05-02 1998-11-10 Masamichi Kikuchi Sterilizing device and sterilizing method
WO2001030706A1 (en) * 1999-10-28 2001-05-03 Kazuto Hashizume Improved method and apparatus for water treatment
KR100342244B1 (en) * 1999-12-07 2002-07-02 조부평 An water purifier using ozone
KR100360593B1 (en) * 1999-12-23 2002-11-13 동부전자 주식회사 Ozonated water generation apparatus
KR100924738B1 (en) * 2008-05-13 2009-11-05 주식회사 엠아이씨 Apparatus of sterile water and ozone water and method of steile water and ozen water use of microwave
CN103073137A (en) * 2013-02-05 2013-05-01 韩先锋 Swirl partition type ballast water treatment device for ship
WO2013073564A1 (en) * 2011-11-15 2013-05-23 Necライティング株式会社 Purification device and purification method
JP2014514964A (en) * 2011-12-01 2014-06-26 ミリョン エコ カンパニー リミテッド Plasma water treatment equipment
CN112811682A (en) * 2020-12-31 2021-05-18 上海砼仁环保技术发展有限公司 Integrated water body disinfection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100758020B1 (en) * 2006-03-07 2007-09-11 (주)대영기연 The device for sterlizing water with ozone and ultraviolet rays

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04141296A (en) * 1990-10-01 1992-05-14 Isomura Housui Kiko Kk Highly treated water supplying apparatus for multiple housing
JPH04247294A (en) * 1991-02-01 1992-09-03 Toshiba Corp Water treating apparatus by ultraviolet oxidation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04141296A (en) * 1990-10-01 1992-05-14 Isomura Housui Kiko Kk Highly treated water supplying apparatus for multiple housing
JPH04247294A (en) * 1991-02-01 1992-09-03 Toshiba Corp Water treating apparatus by ultraviolet oxidation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617467A1 (en) * 1996-05-02 1997-11-13 Wolfgang Vitt Apparatus for water disinfection comprises ultra violet emitters in quartz tube
DE19617467C2 (en) * 1996-05-02 2000-12-14 Wolfgang Vitt Device for sterilizing water using UV-C lamps
JPH10295784A (en) * 1997-05-02 1998-11-10 Masamichi Kikuchi Sterilizing device and sterilizing method
US6773609B1 (en) 1999-10-28 2004-08-10 Kazuto Hashizume Advanced water treatment system and advanced water treatment method
WO2001030706A1 (en) * 1999-10-28 2001-05-03 Kazuto Hashizume Improved method and apparatus for water treatment
KR100342244B1 (en) * 1999-12-07 2002-07-02 조부평 An water purifier using ozone
KR100360593B1 (en) * 1999-12-23 2002-11-13 동부전자 주식회사 Ozonated water generation apparatus
KR100924738B1 (en) * 2008-05-13 2009-11-05 주식회사 엠아이씨 Apparatus of sterile water and ozone water and method of steile water and ozen water use of microwave
WO2013073564A1 (en) * 2011-11-15 2013-05-23 Necライティング株式会社 Purification device and purification method
CN104023753A (en) * 2011-11-15 2014-09-03 Nec照明株式会社 Purification device and purification method
JP2014514964A (en) * 2011-12-01 2014-06-26 ミリョン エコ カンパニー リミテッド Plasma water treatment equipment
CN103073137A (en) * 2013-02-05 2013-05-01 韩先锋 Swirl partition type ballast water treatment device for ship
CN112811682A (en) * 2020-12-31 2021-05-18 上海砼仁环保技术发展有限公司 Integrated water body disinfection device

Also Published As

Publication number Publication date
JPH084784B2 (en) 1996-01-24

Similar Documents

Publication Publication Date Title
US5536400A (en) Apparatus for purifying fluids with UV radiation and ozone
US20110247972A1 (en) Pressurized UV/O3 Water Purification System
EP0671363B1 (en) Method and system for treating polluted water
JPH05228480A (en) Device for processing hardly biodegradable substance
JPH06277660A (en) Water treatment apparatus
KR101868524B1 (en) Apparatus for water treatment
JPH10507680A (en) Gas and liquid purification method and apparatus
KR101890361B1 (en) An off ozone gas recirculation type UV disinfection system
JPH05228481A (en) Device for processing hardly biodegradable substance
JPH10174983A (en) Accelerated oxidation treatment apparatus using ozone and photocatalyst
JP2907814B1 (en) Photocatalytic reactor
EP0708738A1 (en) Treatment of fluids
KR100348413B1 (en) Uv and ozone producing aop chamber and water-cleaning apparatus using same
JP3400942B2 (en) Method and apparatus for decomposing organic chlorine compounds such as dioxins in landfill leachate
GB1583394A (en) Method and apparatus for sterilizing liquids
JP2004223345A (en) Method and apparatus for purifying fluid
JPS61185386A (en) Apparatus for purifying drinking water
JP4909726B2 (en) UV disinfection equipment
JP3493843B2 (en) Accelerated oxidation treatment equipment in water treatment
JPH0663571A (en) Ozone-bioactive carbon treatment device
KR19990015104U (en) Advanced water treatment system combining ozone and ultraviolet
JPH08155445A (en) Water treatment apparatus
JP3859866B2 (en) Water treatment method
JPH11221581A (en) Oxidation decomposition treatment apparatus
JPH07236884A (en) Water purifying and sterilizing treatment apparatus

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090124

Year of fee payment: 13

LAPS Cancellation because of no payment of annual fees