JPH0661544B2 - Ozone treatment equipment - Google Patents
Ozone treatment equipmentInfo
- Publication number
- JPH0661544B2 JPH0661544B2 JP15577886A JP15577886A JPH0661544B2 JP H0661544 B2 JPH0661544 B2 JP H0661544B2 JP 15577886 A JP15577886 A JP 15577886A JP 15577886 A JP15577886 A JP 15577886A JP H0661544 B2 JPH0661544 B2 JP H0661544B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- ozone
- chlorine
- water
- ozone contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、浄水等のオゾン処理装置に関するものであ
る。TECHNICAL FIELD The present invention relates to an ozone treatment apparatus for purified water and the like.
オゾン処理は、浄水の高度処理法の一つであり、処理水
の脱臭、脱色、鉄、マンガンの酸化、及び水中有機物の
安定化を主な目的としている。Ozone treatment is one of the advanced treatment methods for purified water, and its main purpose is to deodorize and decolorize treated water, oxidize iron and manganese, and stabilize organic substances in water.
従来、オゾン処理は、オゾン接触槽を用いてオゾンと処
理水を接触させることによって行なっている。Conventionally, ozone treatment is performed by bringing ozone into contact with treated water using an ozone contact tank.
ところで、オゾン接触槽から排出される処理水中には、
未反応のオゾンが溶存している。この溶存オゾンは、次
に続く処理施設（急速砂濾過池、活性炭濾過池等）でオ
ゾン臭を発生したり、大気中の環境基準値（0.06ppm）
以上となるなどの問題を引き起こし、処理を必要とする
場合がある。By the way, in the treated water discharged from the ozone contact tank,
Unreacted ozone is dissolved. This dissolved ozone generates ozone odor in the subsequent treatment facilities (rapid sand filter, activated carbon filter, etc.) and environmental standard value (0.06ppm) in the atmosphere.
It may cause problems such as the above and require processing.
しかしながら、従来のオゾン接触槽の構造は、上記残留
溶存オゾンに対する配慮が全くない。However, the structure of the conventional ozone contact tank does not consider the residual dissolved ozone at all.
そこで、この発明は、オゾン接触槽から排出される処理
水中の残留溶存オゾンを水処理の特性をも考慮して効果
的に分解することができるオゾン処理装置を提供しよう
とするものである。Therefore, the present invention is intended to provide an ozone treatment device capable of effectively decomposing residual dissolved ozone in the treated water discharged from the ozone contact tank in consideration of the characteristics of water treatment.
この発明は、上記の問題点を解決するために、オゾン処
理装置を次のように構成したものである。In order to solve the above-mentioned problems, the present invention has an ozone treatment device configured as follows.
即ち、オゾン接触槽と塩素注入槽と混合滞留槽の三つの
槽から成り、上記オゾン接触槽と塩素注入槽に原水を分
配して供給し、上記オゾン接触槽と塩素注入槽において
処理された処理水をそれぞれ上記混合滞留槽に供給して
混合するのである。That is, it is composed of three tanks, an ozone contact tank, a chlorine injection tank, and a mixing and retention tank, and the raw water is distributed and supplied to the ozone contact tank and the chlorine injection tank, and the treatment is performed in the ozone contact tank and the chlorine injection tank. Water is supplied to each of the mixing and retaining tanks to mix them.
上記オゾン接触槽において処理された処理水には、溶存
オゾンが残留し、一方、塩素注入槽において処理された
処理水には塩素が残留している。Dissolved ozone remains in the treated water treated in the ozone contact tank, while chlorine remains in the treated water treated in the chlorine injection tank.
したがって、オゾン接触槽及び塩素注入槽から排出され
るそれぞれの処理水を、混合滞留槽において混合すれ
ば、残留溶存オゾンが残留塩素によって分解され、処理
水中の溶存オゾン濃度が低下する。Therefore, when the treated water discharged from the ozone contact tank and the treated water discharged from the chlorine injection tank are mixed in the mixing and retaining tank, residual dissolved ozone is decomposed by residual chlorine, and the dissolved ozone concentration in the treated water decreases.
以下、この発明の実施例を添付図面に基づいて説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.
この発明のオゾン処理装置は、オゾン接触槽１と塩素注
入槽２と混合滞留槽３の三つの槽から成る。この三つの
槽は図面の実施例のように一つの場所にまとめて設置し
ても、またそれぞれの槽を別の場所に設置するようにし
てもよい。実施例の場合は、オゾン接触槽１と塩素注入
槽２を並列に設け、オゾン接触槽１と塩素注入槽２の下
流端に混合滞留槽３を設けている。The ozone treatment apparatus of the present invention comprises three tanks, an ozone contact tank 1, a chlorine injection tank 2 and a mixing and retaining tank 3. These three tanks may be installed together in one place as in the illustrated embodiment, or each tank may be installed in another place. In the case of the embodiment, the ozone contact tank 1 and the chlorine injection tank 2 are provided in parallel, and the mixing retention tank 3 is provided at the downstream end of the ozone contact tank 1 and the chlorine injection tank 2.
上記オゾン接触槽１には、底部に散気管４が設けられ、
この散気管４からオゾン化ガスが槽内に圧入されるよう
になっている（気−液向流接触のみの場合もある）。ま
た、このオゾン接触槽１には、越流壁５が所定の間隔で
立設され、越流壁５相互間には下端を開放した仕切壁６
が立設されており、槽内の処理液Ｂが上向流と下向流を
繰り返しながらオゾンと有効に接触するようになってい
る。The ozone contact tank 1 is provided with an air diffuser 4 at the bottom,
Ozonized gas is press-fitted into the tank through the air diffuser 4 (there may be only gas-liquid countercurrent contact). Further, in this ozone contact tank 1, overflow walls 5 are erected at a predetermined interval, and partition walls 6 having open lower ends are provided between the overflow walls 5.
Is installed upright, and the treatment liquid B in the tank is in effective contact with ozone while repeating upward flow and downward flow.
上記塩素注入槽２には、塩素が圧入されている。この塩
素注入槽２にも下端を開放した仕切壁７が立設され、こ
れによって槽内の処理液Ｃが塩素と有効に接触するよう
になっている。Chlorine is pressed into the chlorine injection tank 2. A partition wall 7 having an open lower end is also provided upright in the chlorine injection tank 2 so that the treatment liquid C in the tank effectively contacts chlorine.
原水Ａは上記オゾン接触槽１と塩素注入槽２の上流側に
分配して供給される。原水Ａの分配は、オゾン接触槽１
と塩素注入槽２の上流側に設けたバルブ８、９によって
行ない、これによってオゾン接触槽１と塩素注入槽２へ
供給する原水Ａの流量を調節することができる。例えば
河川水は、冬期はNH4濃度が特に高く、夏期は臭気が特
に強くなるので、このような河川水を処理する場合に
は、冬期は塩素注入槽２へ供給する原水Ａの量を多くし
て、NH4成分を塩素によって分解し、夏期は臭気を特に
除去するために、オゾン接触槽１へ原水Ａを多く供給す
るようにする。The raw water A is distributed and supplied to the upstream side of the ozone contact tank 1 and the chlorine injection tank 2. The raw water A is distributed in the ozone contact tank 1
And valves 8 and 9 provided on the upstream side of the chlorine injection tank 2, whereby the flow rate of the raw water A supplied to the ozone contact tank 1 and the chlorine injection tank 2 can be adjusted. For example, river water has a particularly high NH 4 concentration in the winter and has a particularly strong odor in the summer, so when treating such river water, the amount of raw water A supplied to the chlorine injection tank 2 is large in the winter. Then, the NH 4 component is decomposed by chlorine, and a large amount of raw water A is supplied to the ozone contact tank 1 in order to remove the odor particularly in the summer.
上記混合滞留槽３には、オゾン接触槽１と塩素注入槽２
から処理水Ｂ、Ｃがそれぞれ越流によって供給され、こ
の混合滞留槽３において、オゾン接触槽１によって処理
された処理水Ｂ中の残留溶存オゾンが塩素注入槽２によ
って処理された処理水Ｃ中に残留する塩素によって分解
される。その際のオゾンと塩素の反応は次式のように考
えられる。The mixing and retaining tank 3 includes an ozone contact tank 1 and a chlorine injection tank 2.
From the treated water B treated by the ozone contact tank 1 in the mixed retention tank 3 in the treated water C treated by the chlorine injection tank 2 Decomposed by residual chlorine. The reaction of ozone and chlorine at that time is considered as the following equation.
Ｏ３＋Ｈ(Na)ClO→２Ｏ２＋Ｈ(Na)Cl また、塩素注入槽２によって処理された処理水Ｃの臭気
成分は、混合滞留槽３においてオゾン接触槽１によって
処理された処理水Ｂ中の残留溶存オゾンによっても一部
分解除去されうる。O 3 + H (Na) ClO → 2O 2 + H (Na) Cl The odor component of the treated water C treated by the chlorine injection tank 2 is in the treated water B treated by the ozone contact tank 1 in the mixing and retaining tank 3. It can also be partially decomposed and removed by residual dissolved ozone.
この発明は、以上の如きものであるから、次のような効
果を奏する。Since the present invention is as described above, it has the following effects.
(1)混合滞留槽において、オゾン接触槽の処理水に含ま
れる残留溶存オゾンは塩素注入槽の処理水に含まれる残
留塩素によって分解されるので、最終的に処理水の残留
溶存オゾン濃度を低下させることができる。一方、塩素
注入槽の処理水の脱臭成分は、混合滞留槽においてオゾ
ン接触槽の処理水に含まれる残留溶存オゾンによって分
解される。逆にオゾン接触槽のアンモニアは、未反応塩
素と反応しアンモニアの分解も可能である。したがっ
て、この発明によれば、未反応オゾン及び未反応塩素の
有効利用が図れる。(1) In the mixed retention tank, residual dissolved ozone contained in the treated water of the ozone contact tank is decomposed by residual chlorine contained in the treated water of the chlorine injection tank, so the residual dissolved ozone concentration of the treated water is finally reduced. Can be made. On the other hand, the deodorizing component of the treated water in the chlorine injection tank is decomposed by the residual dissolved ozone contained in the treated water in the ozone contact tank in the mixing and retaining tank. On the contrary, ammonia in the ozone contact tank reacts with unreacted chlorine to decompose ammonia. Therefore, according to the present invention, it is possible to effectively utilize unreacted ozone and unreacted chlorine.
(2)原水とオゾン接触槽と塩素注入槽に分配して供給す
るので、原水の水質に応じてオゾン接触槽と塩素注入槽
の配分をコントロールすることがきる。(2) Since the raw water is distributed to the ozone contact tank and the chlorine injection tank and supplied, the distribution of the ozone contact tank and the chlorine injection tank can be controlled according to the water quality of the raw water.
第１図はこの発明の一実施例を示す平面図、第２図は第
１図のII−II線の断面図、第３図は第１図のIII−III線
の断面図である。 １……オゾン接触槽、２……塩素注入槽、３……混合滞
留槽、Ａ……原水、Ｂ、Ｃ……処理水。1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a sectional view taken along the line III-III in FIG. 1 ... Ozone contact tank, 2 ... Chlorine injection tank, 3 ... Mixed retention tank, A ... Raw water, B, C ... Treated water.
Claims (1)
三つの槽から成り、上記オゾン接触槽と塩素注入槽に原
水を分配して供給し、上記オゾン接触槽と塩素注入槽に
おいて処理された処理水をそれぞれ上記混合滞留槽に供
給して混合するオゾン処理装置。1. An ozone contact tank, a chlorine injecting tank, and a mixing and retaining tank, which are three tanks. Raw water is distributed and supplied to the ozone contacting tank and the chlorine injecting tank, and treated in the ozone contacting tank and the chlorine injecting tank. An ozone treatment device that supplies the treated water to the mixing and retaining tanks and mixes them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15577886A JPH0661544B2 (en) | 1986-06-30 | 1986-06-30 | Ozone treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15577886A JPH0661544B2 (en) | 1986-06-30 | 1986-06-30 | Ozone treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS637895A JPS637895A (en) | 1988-01-13 |
| JPH0661544B2 true JPH0661544B2 (en) | 1994-08-17 |
Family
ID=15613201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15577886A Expired - Fee Related JPH0661544B2 (en) | 1986-06-30 | 1986-06-30 | Ozone treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0661544B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087298A (en) * | 1996-05-14 | 2000-07-11 | Engelhard Corporation | Exhaust gas treatment system |
| US5948377A (en) * | 1996-09-04 | 1999-09-07 | Engelhard Corporation | Catalyst composition |
| US5981427A (en) * | 1996-09-04 | 1999-11-09 | Engelhard Corporation | Catalyst composition |
| US5948723A (en) * | 1996-09-04 | 1999-09-07 | Engelhard Corporation | Layered catalyst composite |
| US5898014A (en) * | 1996-09-27 | 1999-04-27 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US6248688B1 (en) | 1996-09-27 | 2001-06-19 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US6921738B2 (en) * | 1996-12-06 | 2005-07-26 | Engelhard Corporation | Catalytic metal plate |
| TW442324B (en) | 1996-12-06 | 2001-06-23 | Engelhard Corp | Catalytic metal plate |
| US6110862A (en) * | 1998-05-07 | 2000-08-29 | Engelhard Corporation | Catalytic material having improved conversion performance |
-
1986
- 1986-06-30 JP JP15577886A patent/JPH0661544B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS637895A (en) | 1988-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |