JPS6168195A - Water treatment by ozone - Google Patents
Water treatment by ozoneInfo
- Publication number
- JPS6168195A JPS6168195A JP19055484A JP19055484A JPS6168195A JP S6168195 A JPS6168195 A JP S6168195A JP 19055484 A JP19055484 A JP 19055484A JP 19055484 A JP19055484 A JP 19055484A JP S6168195 A JPS6168195 A JP S6168195A
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- concentration
- air volume
- controlling
- 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.)
- Granted
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (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〕
本発明は、上水、用水、下水、し尿、工場廃水−のオゾ
ン処理における制御方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control method in the ozone treatment of clean water, commercial water, sewage, human waste, and industrial wastewater.
従来、オゾンを用いた水処理におけるオゾン注入量のｉ
Ｉｊ御方式は、風量固定で、放電電力または周波数を変
化させる、いわゆる濃度制御方式が一般であった。Traditionally, the ozone injection amount i in water treatment using ozone
The Ij control method has generally been a so-called concentration control method in which the air volume is fixed and the discharge power or frequency is varied.
従来の技術の問題点を列記すると、次の通りである。 The problems of the conventional technology are listed below.
（ｉ）現在のオゾン発生機の定格オゾン濃度は、１０〜
２０ｇ／Ｎ＋＋？が一般的である。一方、オゾン発生機
容量は、通常、最大必要量で決定されるため、処理水量
低下、水質向上時には、濃度制御方式の場合、供給オゾ
ン濃度が極端に低下する恐れがあり、この結果、オゾン
吸収効率の低下につながる。(i) The rated ozone concentration of current ozone generators is 10~
20g/N++? is common. On the other hand, since the ozone generator capacity is usually determined by the maximum required amount, when the amount of treated water decreases or the water quality improves, there is a risk that the supplied ozone concentration will drop dramatically in the case of a concentration control method, and as a result, ozone absorption Leads to reduced efficiency.
（ｉｉ ）オゾン発生機の特性として、最適オゾン生成
効率を示すオゾン濃度が存在する。したがって、前記（
ｉ）の場合、オゾン生成効率自体も低下する。(ii) As a characteristic of an ozone generator, there is an ozone concentration that indicates the optimum ozone generation efficiency. Therefore, the above (
In the case of i), the ozone production efficiency itself also decreases.
（ｉｉｉ ）処理対象成分によっては、最低必要残留オ
ゾン濃度が存在する０例えば、殺菌処理の場合、残留オ
ゾンが０．４■／１以上必要である。(iii) Depending on the component to be treated, there is a minimum required residual ozone concentration. For example, in the case of sterilization treatment, a residual ozone concentration of 0.4 .mu./1 or more is required.
この残留オゾン濃度は、供給オゾン濃度にも大きな影響
を受けるため、前記（ｉ）のような場合、限られた時間
内で、規定以上の残留オゾンを維持できないことがあり
、結果的に、オゾンの過剰注入を余儀なくされる。This residual ozone concentration is greatly affected by the supply ozone concentration, so in cases like (i) above, it may not be possible to maintain residual ozone above the specified level within a limited time, and as a result, ozone forced to inject too much.
（ｉｖ）上記（ｉ）〜（ＩＩｉ）を考慮した運転を行う
と、制御範囲が限定される。(iv) If the operation is performed in consideration of the above (i) to (IIi), the control range will be limited.
（Ｖ）また、風量制御方式を加味したとしても、ブロワ
−の回転数制御自体に制約があり、風量制御にも限界が
ある。(V) Furthermore, even if an air volume control method is taken into account, there are restrictions on the blower rotational speed control itself, and there are also limits to the air volume control.
本発明は、これら従来技術の問題点を解決し、広範な制
御範囲においても、最適オゾン吸収効率と処理効果を維
持しようとするものである。The present invention attempts to solve these problems of the prior art and maintain optimal ozone absorption efficiency and treatment effectiveness even within a wide control range.
本発明は、複数のオゾン発生機で構成されるオゾン処理
設備が、それぞれオゾン化ガスの風量、濃度を固定した
一台以上のオゾン発生機群（Ｈと、原料ガス供給ブロワ
−の回転数を制御し、かつ風量変化に伴って生成オゾン
濃度が一定となるように放電電力又は周波数を制御する
一台以上のオゾン発生機群（Ｉｆ）からなり、オゾン注
入量の制御を前記オゾン発生機群（Ｉ）の台数制御と前
記オゾン発生機群（Ｉ［）の風量制御の組合せで行うこ
とを特徴とするオゾンによる水処理方法である。The present invention provides an ozone treatment facility consisting of a plurality of ozone generators, each of which has a group of one or more ozone generators (H) with a fixed air volume and concentration of ozonized gas, and a raw material gas supply blower with a fixed rotation speed. The ozone generator group (If) is comprised of one or more ozone generator groups (If) that control the discharge power or frequency so that the generated ozone concentration becomes constant as the air volume changes, and the ozone generator group (If) controls the ozone injection amount. This is a water treatment method using ozone, characterized in that it is performed by a combination of controlling the number of ozone generators (I) and controlling the air volume of the ozone generator group (I[).
本発明の特徴を要約すると、
（ｉ）複数のオゾン発生機で構成し、これらのうち、オ
ゾン注入量の＠ｌ！ｌ整を行うための台数１１Ｉ御群と
、微調整を行うための風量制御群に分ｔす、
（ｉｉ ）オゾン発生機の運転条件は、最適効率に維持
できるような濃度に設定する
ものである。To summarize the features of the present invention, (i) It is composed of a plurality of ozone generators, and among these, @l! (ii) The operating conditions of the ozone generator are set to a concentration that maintains the optimum efficiency. be.
そして、（ｉ）の具体的手段については、ブロワ−の回
転数制御自体に制約があるため、オゾン注入量を風量制
御でコントロール出来ない範囲の大きな変動は、オゾン
発生機自体の運転、停止で対応する０通常、ブロワ−の
制御範囲は５０〜ｔｏｏｔ程度であり、必要オゾン注入
量の変動幅・周期とビニシアルコスト。ランニングコス
トの経済性を考慮した上で、オゾン発生機の台数と個々
の容量、台数制御と風量制御の比率を決定する。Regarding the specific method (i), since there are restrictions on the blower rotational speed control itself, large fluctuations in the ozone injection amount that cannot be controlled by air volume control are caused by the operation and stopping of the ozone generator itself. Corresponding 0 Normally, the control range of the blower is about 50~toot, and the fluctuation range/cycle of the required ozone injection amount and the vinyl cost. The number of ozone generators, the capacity of each ozone generator, and the ratio of number control to air volume control are determined after considering the economic efficiency of running costs.
更に、１北方式に、流量針、原オゾン濃度計、処理水中
の残留オゾン濃度計又は徘オゾン濃度計、ＣＯＯ計や色
度測定用分光光度計等の各種水質計を付加し、その信号
をフィードバックし、台数および風量１１１１御機構と
連動させることにより、完全自動運転も可能である。Furthermore, various water quality meters such as a flow rate needle, original ozone concentration meter, residual ozone concentration meter in treated water or wandering ozone concentration meter, COO meter, and spectrophotometer for color measurement are added to the 1-north method, and their signals are Fully automatic operation is also possible by providing feedback and linking with the number and air volume control mechanism.
次ｅ、 （ｉｉ ）の具体的手段については、オゾン
発生機の特性として、タイプにより最適オゾン生成効率
を示すオゾン濃度が存在する０通常、その濃度は、１６
〜２０ｇ／Ｎｄの範囲に存在する。Regarding the specific means for the following e.
It exists in the range of ~20g/Nd.
例えば、Ｔ社製オゾン発生機の最適濃度は、第２図に示
すように、１６ｇ／Ｎｎｒ付近にある。したがって、常
に、最適オゾン生成効率となるオゾン濃度に固定して運
転すれば、エネルギー的にも、また、オゾン吸収効率の
面からも有利となる。For example, the optimum concentration of the ozone generator manufactured by Company T is around 16 g/Nnr, as shown in FIG. Therefore, if the operation is always fixed at the ozone concentration that provides the optimum ozone production efficiency, it will be advantageous in terms of energy and ozone absorption efficiency.
さらに本発明を、上水処理に適用した一実施例につき、
第１図を参照しながら説明する。Furthermore, regarding an example in which the present invention is applied to water treatment,
This will be explained with reference to FIG.
それぞれブロワ−１、除湿、冷却などの前処理設備２を
をし、風量、濃度を固定した例えば同一のオゾン発生能
力を宵する−１−１に３のオゾン発生機３群Ｉと、１ｋ
ｌ−１に３の２倍の能力を有し、ブロワ−１の回転数を
制御しかつ風量変化に伴って生成オゾン濃度が一定とな
るように放電電力又は周波数を制御するｌｋ４オゾン発
生機３′ （オゾン発生機群ＩＮ）からなり、これらの
制御機構４を介して、反応槽５に流入する原水６の流量
計７にて計測される流量による比例制御を行う、すなわ
ち、制御機構４は、原水流量に対応してオゾン発生機群
■の磁１〜隘３オゾン発生機３の台数制御を行って粗調
整すると共に、嵐４オゾン発生機３′（オゾン発生機群
１１）の風量制御を行って微調整をするものである。Each has a blower 1, pre-treatment equipment 2 such as dehumidification and cooling, and has 3 groups of ozone generators I, 1-1 and 3, each having the same ozone generation capacity with a fixed air volume and concentration, and a 1k ozone generator.
lk4 ozone generator 3, which has twice the capacity of l-1 and 3, controls the rotation speed of blower 1, and controls the discharge power or frequency so that the generated ozone concentration is constant as the air volume changes. ' (ozone generator group IN), and through these control mechanisms 4, proportional control is performed based on the flow rate measured by the flow meter 7 of the raw water 6 flowing into the reaction tank 5. In other words, the control mechanism 4 In response to the raw water flow rate, the number of ozone generators 1 to 3 in ozone generator group ■ is roughly controlled to make rough adjustments, and the air volume of Arashi 4 ozone generator 3' (ozone generator group 11) is controlled. This is done to make fine adjustments.
したがって、広範な制御範囲においても、最適オゾン吸
収効率と処理効果を常に維持することが可能になる。Therefore, even within a wide control range, it is possible to always maintain optimal ozone absorption efficiency and treatment effectiveness.
また、前記のようにオゾン発生機の台数及び風量をａｍ
するに際し、処理水Ｂ中の残留オゾン濃度を残留オゾン
濃度−計９により測定したり、注入される環オゾン濃度
を環オゾン濃度計ｌＯにより測定し、図示しない設定器
を介してあらかじめ設定された値になるように、二次的
に補正、自動制御するとよく、さらに二次的補正には、
排オゾン濃度によったり、ＣＯＤ、色度その他の被酸化
性勧賞の処理対象とする水’Ｅｒａ度によることもでき
る。In addition, as mentioned above, the number of ozone generators and the air volume are
In doing so, the residual ozone concentration in the treated water B is measured using a residual ozone concentration meter 9, and the injected ring ozone concentration is measured using a ring ozone concentration meter 10, and the ozone concentration is set in advance through a setting device (not shown). It is best to perform secondary correction and automatic control to achieve the desired value.
It can also be determined by the concentration of exhausted ozone or by the degree of erasure of the water to be treated, such as COD, chromaticity, and other oxidizable properties.
なお、オゾン発生機群Ｉと「の構成比率は、前記実施例
にとられれることなく、処理対象の水量変動、水質変動
等の変動幅、変動周期に伴うオゾン注入量の変動特性を
基に、最も経済的な組合せとするように留意すべきであ
る。In addition, the composition ratio of ozone generator group I and "" is not limited to the above embodiments, but is based on the fluctuation characteristics of the ozone injection amount due to fluctuations in the amount of water to be treated, the range of fluctuations such as water quality fluctuations, and the fluctuation period. , care should be taken to find the most economical combination.
以上述べたように、本発明は、オゾン発生機の台数ｉ＃
Ｉｍによる粗調整と風量制御による微調整を組合せて行
うことにより、従来きわめて困難であった広範囲な制御
範囲においても最適なオシ吸収効率と処理効果を維持す
ることができるという、きわめて有益なる効果ををする
ものである。As described above, the present invention provides the number of ozone generators i#
By combining coarse adjustment using Im and fine adjustment using air volume control, we have achieved the extremely beneficial effect of being able to maintain optimal oscillator absorption efficiency and processing effectiveness even over a wide range of control, which was previously extremely difficult. It is something that does.
第１図は本発明の一実施例を示す系統説明図であって、
第２図はオゾン発生機におけるオゾン濃度とオゾン生成
効率との関係を示す線図である。
１−ブロワ−１２−・−前処理設備、３．３′・−・オ
ゾン発生機、４−制御機構、５−反応槽、６・−原水、
７・・・流量計、８・−処理水、９・−残留オシン濃度
計、１０・−原オシン濃度計、１．トー・オゾン発生機
群。FIG. 1 is a system explanatory diagram showing an embodiment of the present invention,
FIG. 2 is a diagram showing the relationship between ozone concentration and ozone generation efficiency in an ozone generator. 1-Blower 12--Pretreatment equipment, 3.3'--Ozone generator, 4-Control mechanism, 5-Reaction tank, 6--Raw water,
7...flow meter, 8.--treated water, 9.--residual osin concentration meter, 10.--raw osin concentration meter, 1. Tor ozone generator group.
Claims (1)
、それぞれオゾン化ガスの風量、濃度を固定した一台以
上のオゾン発生機群（ I ）と、原料ガス供給ブロワー
の回転数を制御し、かつ風量変化に伴って生成オゾン濃
度が一定となるように放電電力又は周波数を制御する一
台以上のオゾン発生機群（II）からなり、オゾン注入量
の制御を前記オゾン発生機群 （ I ）の台数制御と前記オゾン発生機群（II）の風量
制御の組合せで行うことを特徴とするオゾンによる水処
理方法。 ２、前記オゾン発生機群（ I ）の台数制御と前記オゾ
ン発生機群（II）の風量制御を、処理水量と比例させて
行うものである特許請求の範囲第１項記載のオゾンによ
る水処理方法。 ３、前記オゾン発生機群（ I ）の台数制御と前記オゾ
ン発生機群（II）の風量制御を行うに際し、処理水中の
残留オゾン濃度、注入する原オゾン濃度、排オゾン濃度
あるいは処理対象とする水質濃度を測定し、あらかじめ
設定された値になるように制御するものである特許請求
の範囲第１項又は第２項記載のオゾンによる水処理方法
。[Claims] 1. An ozone treatment facility composed of a plurality of ozone generators includes one or more ozone generator groups (I) each having a fixed air volume and concentration of ozonized gas, and a raw material gas supply blower. It consists of one or more ozone generator group (II) that controls the rotation speed of the generator and controls the discharge power or frequency so that the generated ozone concentration becomes constant as the air volume changes. A water treatment method using ozone, which is carried out by a combination of controlling the number of ozone generators (I) and controlling the air volume of the ozone generators (II). 2. Water treatment using ozone according to claim 1, wherein the number control of the ozone generator group (I) and the air volume control of the ozone generator group (II) are performed in proportion to the amount of water to be treated. Method. 3. When controlling the number of the ozone generator group (I) and controlling the air volume of the ozone generator group (II), the residual ozone concentration in the treated water, the original ozone concentration to be injected, the exhaust ozone concentration or the target ozone to be treated A water treatment method using ozone according to claim 1 or 2, wherein the water concentration is measured and controlled to a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19055484A JPS6168195A (en) | 1984-09-13 | 1984-09-13 | Water treatment by ozone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19055484A JPS6168195A (en) | 1984-09-13 | 1984-09-13 | Water treatment by ozone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168195A true JPS6168195A (en) | 1986-04-08 |
| JPH0113919B2 JPH0113919B2 (en) | 1989-03-08 |
Family
ID=16260005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19055484A Granted JPS6168195A (en) | 1984-09-13 | 1984-09-13 | Water treatment by ozone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168195A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4950362B1 (en) * | 2011-04-13 | 2012-06-13 | 三菱電機株式会社 | Ozone generation system and operation method of ozone generation system |
| CN103459307A (en) * | 2011-03-24 | 2013-12-18 | 东芝三菱电机产业系统株式会社 | Ozone gas supply system |
-
1984
- 1984-09-13 JP JP19055484A patent/JPS6168195A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459307A (en) * | 2011-03-24 | 2013-12-18 | 东芝三菱电机产业系统株式会社 | Ozone gas supply system |
| EP2690062A1 (en) * | 2011-03-24 | 2014-01-29 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Ozone gas supply system |
| EP2690062A4 (en) * | 2011-03-24 | 2014-10-15 | Toshiba Mitsubishi Elec Inc | Ozone gas supply system |
| US8980189B2 (en) | 2011-03-24 | 2015-03-17 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Ozone gas supply system |
| CN103459307B (en) * | 2011-03-24 | 2016-03-30 | 东芝三菱电机产业系统株式会社 | Ozone gas plenum system |
| JP4950362B1 (en) * | 2011-04-13 | 2012-06-13 | 三菱電機株式会社 | Ozone generation system and operation method of ozone generation system |
| WO2012140749A1 (en) | 2011-04-13 | 2012-10-18 | 三菱電機株式会社 | Ozone generation system and method for operating ozone generation system |
| US9233848B2 (en) | 2011-04-13 | 2016-01-12 | Mitsubishi Electric Corporation | Ozone generation system and method for operating ozone generation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0113919B2 (en) | 1989-03-08 |
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