JP2001293478A - Waste water treating device - Google Patents
Waste water treating deviceInfo
- Publication number
- JP2001293478A JP2001293478A JP2000115195A JP2000115195A JP2001293478A JP 2001293478 A JP2001293478 A JP 2001293478A JP 2000115195 A JP2000115195 A JP 2000115195A JP 2000115195 A JP2000115195 A JP 2000115195A JP 2001293478 A JP2001293478 A JP 2001293478A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- tank
- wastewater
- discharge vessel
- treated
- 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.)
- Withdrawn
Links
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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4616—Power supply
- C02F2201/46175—Electrical pulses
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は排水処理装置に関
し、特に放電を用いて排水中の有機物分解を行う装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating wastewater, and more particularly to an apparatus for decomposing organic substances in wastewater by using electric discharge.
【０００２】[0002]
【従来の技術】排水中に含まれる有機物の分解を促進し
た従来の処理装置の一例を図７を参照して概説する。図
において、処理容器１に収容された処理対象の排水３の
中にオゾンがバブル５の形で導入される。オゾンは処理
容器１の外側に配置されたオゾナイザ７で発生され、処
理容器１の底部に配置された発泡器９に導かれ、前述の
ように発泡器９からバブル５となって排水３中に放出さ
れ、そして上昇する間に周囲の処理液に溶解される。こ
の溶解したオゾンが排水中の有機物の分解を促進する。2. Description of the Related Art An example of a conventional processing apparatus which promotes the decomposition of organic substances contained in wastewater will be outlined with reference to FIG. In the figure, ozone is introduced in the form of bubbles 5 into waste water 3 to be treated contained in a treatment vessel 1. Ozone is generated by an ozonizer 7 disposed outside the processing container 1, guided to a foaming device 9 disposed at the bottom of the processing container 1, and becomes a bubble 5 from the foaming device 9 into the wastewater 3 as described above. Released and dissolved in the surrounding processing liquid while rising. The dissolved ozone promotes the decomposition of organic matter in the wastewater.
【０００３】次に従来技術の別の例として、泡中放電を
用いた排水処理装置を図８を参照して説明する。図８に
おいて、放電槽１１の中に処理対象の排水３が同様に入
れられているが、更に放電電極１３ａ、１３ｂが対向し
てその中に浸漬され、これらは高電圧パルス電源１５に
接続されている。放電槽１１の底部に設けられる発泡器
９は、放電電極１３ａ、１３ｂの中間に位置し、更にこ
れはエアポンプ１７に連絡している。外気の一部がエア
ポンプ１７により取り込まれ、発泡器９から気泡１９の
形で排水３の中に導入されるようになっている。この従
来装置において、排水の処理に際し、発泡器９から空気
が気泡１９の形で導入されると共に放電電極１３ａ、１
３ｂにより気泡存在域に電界が形成される。こうする
と、気泡内での放電（泡中放電）が生じたり、気泡から
液に、又は電極から液へ延びた液中放電が生じ、オゾン
より酸化力の大きいＯＨラジカルが発生する。このＯＨ
ラジカルにより排水中の有機物の分解が促進される。Next, as another example of the prior art, a wastewater treatment apparatus using in-bubble discharge will be described with reference to FIG. In FIG. 8, wastewater 3 to be treated is similarly placed in a discharge vessel 11, and furthermore, discharge electrodes 13 a and 13 b are immersed in the discharge tank 13 in opposition, and these are connected to a high-voltage pulse power supply 15. ing. The foaming device 9 provided at the bottom of the discharge vessel 11 is located between the discharge electrodes 13a and 13b, and further communicates with the air pump 17. A part of the outside air is taken in by the air pump 17 and introduced into the drainage 3 from the foamer 9 in the form of bubbles 19. In this conventional apparatus, air is introduced from the foamer 9 in the form of bubbles 19 and the discharge electrodes 13a,
An electric field is formed in the bubble existence region by 3b. This causes a discharge in the bubble (discharge in the bubble) or a discharge in the liquid extending from the bubble to the liquid or from the electrode to the liquid, thereby generating OH radicals having a greater oxidizing power than ozone. This OH
The radicals promote the decomposition of organic matter in the wastewater.
【０００４】[0004]
【発明が解決しようとする課題】前述の従来装置のう
ち、オゾンを使用するものでは、分解容易な有機物に関
しては有効であるが、フミン酸やダイオキシン等の難分
解性物質に対しては殆ど効果が無い。又、ＯＨラジカル
を用いる従来技術においては、分解容易な有機物に対し
て有効であると共に、フミン酸やダイオキシン等の難分
解性物質に対しても有効に分解機能を発揮する。しかし
ながら、後者においては、処理効率が低すぎてこのまま
では実機に使用することはできず、又処理すべき排水が
高い電気伝導率を有すると、高いジュール損失が生じた
り、放電が生じないといった問題が生ずる。従って、本
発明の課題は、含有難分解性物質がＯＨラジカルにより
分解され、且つＯＨラジカルの生成が促進されて実用的
に十分使用できる排水処理装置を提供することである。Among the above-mentioned conventional apparatuses, those using ozone are effective for easily decomposable organic substances, but are almost effective for hardly decomposable substances such as humic acid and dioxin. There is no. In addition, the conventional technique using OH radicals is effective for organic substances that can be easily decomposed, and also effectively decomposes hardly decomposable substances such as humic acid and dioxin. However, in the latter case, the treatment efficiency is too low to be able to be used in actual equipment as it is, and if the wastewater to be treated has a high electric conductivity, high Joule loss or discharge does not occur. Occurs. Accordingly, an object of the present invention is to provide a wastewater treatment apparatus that can be used practically sufficiently, since the contained hardly decomposable substances are decomposed by OH radicals and the generation of OH radicals is promoted.
【０００５】[0005]
【課題を解決するための手段】上述の課題を解決するた
め、本発明によれば、処理対象排水を収容する放電槽と
その放電槽内に互いに対向して配置された放電電極及び
該放電電極に電気的に連絡された高電圧パルス電源を有
する排水処理装置は、難分解性物質の分解処理に寄与す
るＯＨラジカルの生成反応の原料供給源として、放電槽
の底部に設けられた発泡器を介して連絡したオゾン発生
器、又は過酸化水素水添加装置を有して構成される。オ
ゾン又は過酸化水素を被処理排水中に溶かすために、放
電槽とは別の溶解槽を設けても良く、この場合は、溶解
槽は液ポンプを備えた連結管により前記放電槽に連絡さ
れる。更に、放電槽内には、ｐＨ調整装置や光触媒機能
部材を付設して、ＯＨラジカル生成を促進し、或いは生
成反応の低下を防止するようにすれば尚好適である。According to the present invention, there is provided a discharge vessel for accommodating waste water to be treated, a discharge electrode disposed in the discharge vessel so as to face each other, and the discharge electrode. A wastewater treatment device having a high-voltage pulse power supply electrically connected to a foamer provided at the bottom of a discharge vessel as a raw material supply source for a reaction for generating OH radicals that contributes to decomposition treatment of a hardly decomposable substance. It has an ozone generator or a hydrogen peroxide water adding device which is connected via the apparatus. In order to dissolve ozone or hydrogen peroxide in the wastewater to be treated, a dissolution tank separate from the discharge tank may be provided.In this case, the dissolution tank is connected to the discharge tank by a connecting pipe equipped with a liquid pump. You. Further, it is more preferable that a pH adjusting device or a photocatalytic function member is provided in the discharge tank so as to promote the generation of OH radicals or to prevent a reduction in the generation reaction.
【０００６】[0006]
【発明の実施の形態】以下、添付の図面を参照して本発
明の実施形態を説明する。尚、従来技術に関する図面を
含め全図に亙り同一部分には同一の符号を付して、本発
明の理解を容易にする。先ず図１を参照するに、処理す
べき排水３が入れられている放電槽１１の中に、放電電
極１３ａ、１３ｂが互いに対向して浸漬されており、こ
れらは放電槽１１の外側の高電圧パルス電源１５に接続
されている。放電槽１１の底部に設けられる発泡器９
は、放電電極１３ａ、１３ｂの中間に位置しており、更
に放電槽１１の外側にあるオゾナイザー７に連絡してい
る。そして、オゾナイザー７で発生されたオゾンは、発
泡器９を介してバブル５の形で処理対象の排水３の中に
放出されるようになっている。Embodiments of the present invention will be described below with reference to the accompanying drawings. The same reference numerals are given to the same parts throughout the drawings including the drawings related to the prior art to facilitate understanding of the present invention. First, referring to FIG. 1, discharge electrodes 13a and 13b are immersed in a discharge vessel 11 in which waste water 3 to be treated is placed, facing each other. It is connected to a pulse power supply 15. Foamer 9 provided at the bottom of discharge vessel 11
Are located in the middle of the discharge electrodes 13a and 13b, and further communicate with the ozonizer 7 outside the discharge vessel 11. Then, the ozone generated by the ozonizer 7 is discharged into the wastewater 3 to be treated in the form of bubbles 5 via the foamer 9.
【０００７】以上の構成の実施形態において、排水の処
理に際し、発泡器９からオゾンがバブル５の形で導入さ
れると共に放電電極１３ａ、１３ｂにより気泡存在域に
電界が形成される。こうすると、気泡内での放電（泡中
放電）が生じたり、気泡から液に、又は電極から液へ延
びた液中放電が生じ、オゾンより酸化力の大きいＯＨラ
ジカルが発生する。このＯＨラジカルの発生反応は次の
式で表される。 Ｏ3 ＋ Ｈ2Ｏ → ＯＨ ＋ Ｏ2 （１） この（１）式の反応速度は、従来装置における次の反応
の反応速度に対し、極めて大きい。 Ｏ2 ＋ Ｈ2Ｏ → ２ＯＨ （２） 従って、本実施形態におけるＯＨ発生効率が従来技術に
比して高いため、発生ＯＨが多く、排水３中の難分解性
物質の分解に寄与する量が多くなって、実用的に使用で
きる。In the embodiment having the above-described structure, ozone is introduced in the form of bubbles 5 from the foamer 9 and a field is formed in the bubble existing area by the discharge electrodes 13a and 13b when the wastewater is treated. This causes a discharge in the bubble (discharge in the bubble) or a discharge in the liquid extending from the bubble to the liquid or from the electrode to the liquid, thereby generating OH radicals having a greater oxidizing power than ozone. This OH radical generation reaction is represented by the following equation. O 3 + H 2 O → OH + O 2 (1) The reaction rate of the formula (1) is extremely higher than the reaction rate of the next reaction in the conventional apparatus. O 2 + H 2 O → 2OH (2) Accordingly, since the OH generation efficiency in the present embodiment is higher than that of the conventional technology, the generated OH is large, and the amount contributing to the decomposition of the hardly decomposable substance in the wastewater 3 is large. It can be used more practically.
【０００８】次に図２を参照して本発明の別の実施形態
を説明する。図２において、排水３が入れられている放
電槽１１の中に、放電電極１３ａ、１３ｂが対向して浸
漬され、これらは高電圧パルス電源１５に接続されてい
る。更に放電槽１１には、過酸化水素水添加装置２１が
設けられ、更には撹拌装置２３の撹拌プロペラ２５が放
電槽１１の内部の排水３の中に設けられている。Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 2, discharge electrodes 13 a and 13 b are immersed oppositely in a discharge tank 11 in which drainage 3 is placed, and these are connected to a high-voltage pulse power supply 15. Further, a hydrogen peroxide water adding device 21 is provided in the discharge vessel 11, and a stirring propeller 25 of a stirring device 23 is provided in the drainage 3 inside the discharge vessel 11.
【０００９】上述した構成の実施形態において、過酸化
水素水添加装置２１から過酸化水素（Ｈ2Ｏ2）が排水３
中に添加され、撹拌プロペラ２５により撹拌され、全体
に万遍なく分散される。このようにして、放電電極１３
ａ、１３ｂ間にパルス高電圧を印加すると、電界が形成
され、液中放電が発生し、以下の反応式に示すような反
応が生ずる。 Ｈ2Ｏ2 → ２ＯＨ （３） 即ち、過酸化水素が分解してＯＨラジカルが生ずる。更
に、（３）式に示される反応の速度は、過酸化水素（Ｈ
2Ｏ2）の濃度ひいてはその添加量によって好適に制御さ
れるので、ＯＨラジカルの生成量は容易に制御される。
又、第１の実施形態で用いるオゾン（気体）に比し、過
酸化水素水（液体）の方が排水３中に溶けやすく、制御
に便である。In the embodiment having the above-described structure, hydrogen peroxide (H 2 O 2 ) is discharged from the hydrogen peroxide solution
And stirred by the stirring propeller 25 and dispersed throughout. Thus, the discharge electrode 13
When a pulsed high voltage is applied between a and 13b, an electric field is formed, a discharge occurs in the liquid, and a reaction represented by the following reaction formula occurs. H 2 O 2 → 2OH (3) That is, hydrogen peroxide is decomposed to generate OH radicals. Further, the rate of the reaction represented by the equation (3) is the same as that of hydrogen peroxide (H
Since the concentration of 2 O 2 ) and the amount thereof are suitably controlled, the amount of OH radicals generated can be easily controlled.
Further, compared with ozone (gas) used in the first embodiment, the hydrogen peroxide solution (liquid) is more easily dissolved in the waste water 3 and is easier to control.
【００１０】更に図３を参照して別の実施形態を説明す
る。本実施形態においては、放電槽３１とオゾン溶解槽
３３とが分かれて別体として設けられ、これらの底部は
液ポンプ３５を備えた連結パイプ３７で相互に連絡され
ている。そして、放電槽３１には、排水３内に浸漬して
放電電極１３ａ、１３ｂが設けられ、これらは高電圧パ
ルス電源１５に電気的に連絡している。一方、オゾン溶
解槽３３の底部に設けられた発泡器９も、オゾナイザー
７に連絡し、発生オゾンが排水３の中に導入されるよう
になっている。Another embodiment will be described with reference to FIG. In the present embodiment, the discharge tank 31 and the ozone dissolving tank 33 are separately provided separately, and their bottoms are connected to each other by a connecting pipe 37 having a liquid pump 35. The discharge tank 31 is provided with discharge electrodes 13 a and 13 b immersed in the waste water 3, and these are electrically connected to the high-voltage pulse power supply 15. On the other hand, the foaming device 9 provided at the bottom of the ozone dissolving tank 33 also communicates with the ozonizer 7 so that the generated ozone is introduced into the waste water 3.
【００１１】図３に示された実施形態においては、オゾ
ン溶解槽３３内において、十分量のオゾンを溶解させる
ことで、先ずオゾンで分解可能な物質を酸化分解する。
このような一次処理済みの排水３を液ポンプ３５により
放電槽３１に送るので、オゾンでは分解不可能な難分解
性物質の分解が放電槽３１内で効率的に行われる。更に
は、放電槽３１内に送られてきた排水３中には十分量の
オゾンが溶解しているため、前記（１）式による反応に
おいて反応に関与するオゾン量を増大することができ、
更にＯＨラジカルの生成効率を向上する。これは、結局
難分解性物質の分解効率を向上する。In the embodiment shown in FIG. 3, a sufficient amount of ozone is dissolved in the ozone dissolving tank 33 to first oxidize and decompose a substance decomposable by ozone.
Since the wastewater 3 after such primary treatment is sent to the discharge tank 31 by the liquid pump 35, the decomposition of the hardly decomposable substance that cannot be decomposed by ozone is efficiently performed in the discharge tank 31. Further, since a sufficient amount of ozone is dissolved in the wastewater 3 sent into the discharge tank 31, the amount of ozone involved in the reaction in the reaction according to the above formula (1) can be increased,
Further, the efficiency of generating OH radicals is improved. This ultimately improves the decomposition efficiency of the hardly decomposable substance.
【００１２】更に図４を参照して改変実施形態を説明す
る。図４において、高電圧パルス電源１５に接続された
放電電極１３ａ、１３ｂを放電槽１１内に設けた構成
は、図１の実施形態と同じであるが、オゾンを供給する
発泡器（図示しない。）に加えてｐＨ調整装置４１及び
ｐＨモニタ装置４３を設けている。撹拌プロペラ２５を
持つ撹拌装置２３も放電槽１１の下部に設けられてい
る。前述の図１の実施形態において、オゾンを発泡器か
ら供給しつつ排水３の放電処理を進めると、排水３中の
ｐＨが酸性側に移行するが、ｐＨモニタ装置４３により
これを検出してｐＨが９．０を下回らないようにｐＨ調
整装置４１からｐＨ調整装置試薬を排水３中に供給す
る。即ち、ＯＨラジカル生成反応は、液ｐＨがアルカリ
側において高効率で進むので、ｐＨ調整装置４１の作動
により排水３のｐＨがアルカリ側に維持され、ＯＨラジ
カルの生成が良好に維持されて難分解性物質の処理が促
進される。ｐＨ調整装置４１、ｐＨモニタ装置４３及び
撹拌装置２３の付加による前述の難分解性物質の処理の
促進は、図２乃至図３の実施形態にも適用可能である。A modified embodiment will be described with reference to FIG. In FIG. 4, the configuration in which the discharge electrodes 13a and 13b connected to the high-voltage pulse power supply 15 are provided in the discharge tank 11 is the same as that of the embodiment of FIG. 1, but a foamer (not shown) for supplying ozone. ), A pH adjusting device 41 and a pH monitoring device 43 are provided. A stirring device 23 having a stirring propeller 25 is also provided below the discharge vessel 11. In the embodiment of FIG. 1 described above, when the discharge treatment of the wastewater 3 is advanced while supplying ozone from the foamer, the pH in the wastewater 3 shifts to the acidic side. Is supplied from the pH adjusting device 41 into the drainage water 3 so that the value does not fall below 9.0. That is, the OH radical generation reaction proceeds with high efficiency at the liquid pH on the alkali side, so that the pH of the waste water 3 is maintained at the alkali side by the operation of the pH adjusting device 41, and the generation of OH radicals is maintained at a high level, so that the OH radical is hardly decomposed. Treatment of toxic substances is promoted. The promotion of the treatment of the hardly decomposable substance described above by adding the pH adjusting device 41, the pH monitoring device 43, and the stirring device 23 is also applicable to the embodiments of FIGS.
【００１３】更に別の改変実施形態を図５を参照して説
明する。図１と対比すれば明確なように、図５において
は放電槽１１の中に光触媒機能部材５１を設けている。
この光触媒機能部材５１は、ＴｉＯ2から製作され、放
電電極１３ａ，１３ｂの間に設けられているが、構成材
料としては、他の光触媒機能を有する材料でも良い。
又、配設位置としては、放電電極１３ａ，１３ｂによる
泡中放電又は液中放電による光が届く位置であれば良
い。そして、図１の実施形態において、放電による光
は、大量の紫外光を有するものの、無為に光エネルギー
を放出している嫌いがある。然るに、本改変実施形態に
よれば、光触媒機能部材５１の光触媒機能により、ＯＨ
ラジカルの生成が促進され、難分解性物質の処理が促進
される。A further modified embodiment will be described with reference to FIG. As is clear from comparison with FIG. 1, a photocatalytic function member 51 is provided in the discharge vessel 11 in FIG.
The photocatalyst function member 51 is made of TiO 2 and is provided between the discharge electrodes 13a and 13b. However, a material having another photocatalyst function may be used as a constituent material.
In addition, the disposition position may be any position where light due to in-bubble discharge or in-liquid discharge by the discharge electrodes 13a and 13b reaches. In the embodiment of FIG. 1, the light due to the discharge has a large amount of ultraviolet light, but dislikes emitting light energy unnecessarily. However, according to the present modified embodiment, the photocatalytic function of the photocatalytic
The generation of radicals is promoted, and the treatment of hardly decomposable substances is promoted.
【００１４】次に電気伝導度が高い排水の処理に好適な
本発明の実施形態について説明する。図６を参照する
に、放電槽６１は、ほぼ水平に延びる絶縁板６３により
上部区画６５と下部区画６７とに分けられている。絶縁
板６３には、ほぼ中央部にバブル供給孔６９が穿設され
ていて、この供給孔６９を介して上部区画６５と下部区
画６７とは流体的に連絡している。絶縁板６３を挟んで
対向する放電電極７１ａ、７１ｂが上部区画６５及び下
部区画６７とにそれぞれ設けられ、これらは放電槽６１
の外側の高電圧パルス電源１５に連絡している。下部区
画６７には、エアポンプ１７に連絡し、運転中は空気で
満たされる。上部区画６５には、処理すべき高電気伝導
度の排水７３が満たされる。Next, an embodiment of the present invention suitable for treating wastewater having high electric conductivity will be described. Referring to FIG. 6, the discharge vessel 61 is divided into an upper section 65 and a lower section 67 by an insulating plate 63 extending substantially horizontally. In the insulating plate 63, a bubble supply hole 69 is formed substantially at the center, and the upper section 65 and the lower section 67 are fluidly connected through the supply hole 69. Discharge electrodes 71a and 71b opposed to each other with an insulating plate 63 interposed therebetween are provided in an upper section 65 and a lower section 67, respectively.
Is connected to the high voltage pulse power supply 15 outside. The lower section 67 is in communication with the air pump 17 and is filled with air during operation. The upper section 65 is filled with high conductivity drainage 73 to be treated.
【００１５】前述した構成の本実施形態において、運転
に際してはエアポンプ１７により大気の一部が取り込ま
れ、これが放電槽６１の下部区画６７に供給され、供給
孔６９を通って気泡１９として排水３中に放出される。
同時的に、放電電極７１ａ、７１ｂ間には、高電圧パル
ス電源１５によりパルス電圧が印加され、電界が形成さ
れる。このため、泡中放電や液中放電７５が発生し、Ｏ
Ｈラジカルの生成が促進され、難分解性物質の処理が行
われる。この実施形態においては、電界は供給孔６９を
通るように集中するから、そこから延びる液中放電７９
も効率よく発生し、所期の効果が得られる。このように
して、排水７３が高電気伝導度を有していても、放電が
良好に発生し、難分解性物質の処理が促進される。In this embodiment having the above-described structure, a part of the atmosphere is taken in by the air pump 17 during operation, and is supplied to the lower section 67 of the discharge tank 61, passes through the supply hole 69 as bubbles 19 in the wastewater 3. Will be released.
At the same time, a pulse voltage is applied between the discharge electrodes 71a and 71b by the high-voltage pulse power supply 15, and an electric field is formed. Therefore, a discharge in bubbles and a discharge in liquid 75 are generated, and O
The generation of H radicals is promoted, and the treatment of a hardly decomposable substance is performed. In this embodiment, since the electric field is concentrated so as to pass through the supply hole 69, a submerged discharge 79 extending therefrom is provided.
Also occurs efficiently, and the desired effect is obtained. In this way, even if the drainage 73 has a high electrical conductivity, the discharge is satisfactorily generated, and the treatment of the hardly decomposable substance is promoted.
【００１６】[0016]
【発明の効果】以上説明したように、本発明によれば、
高圧パルス電圧がかけられて電界を形成する処理排水中
にオゾン、又は過酸化水素水が添加されるので、ＯＨラ
ジカルの生成が促進され、排水中の難分解性物質の処理
が効果的に行われる。As described above, according to the present invention,
Ozone or hydrogen peroxide is added to the treated wastewater that generates an electric field when a high-voltage pulse voltage is applied, which promotes the generation of OH radicals and effectively treats hardly decomposable substances in the wastewater. Will be
【図１】本発明の実施形態を説明する概念図である。FIG. 1 is a conceptual diagram illustrating an embodiment of the present invention.
【図２】本発明の別の実施形態を説明する概念図であ
る。FIG. 2 is a conceptual diagram illustrating another embodiment of the present invention.
【図３】本発明の更に別の実施形態を説明する概念図で
ある。FIG. 3 is a conceptual diagram illustrating still another embodiment of the present invention.
【図４】図１の実施形態に別の構成部材を付加した改変
実施形態の概念図である。FIG. 4 is a conceptual diagram of a modified embodiment in which another component is added to the embodiment of FIG. 1;
【図５】図１の実施形態に更に別の構成部材を付加した
別の改変実施形態の概念図である。FIG. 5 is a conceptual diagram of another modified embodiment in which another constituent member is added to the embodiment of FIG. 1;
【図６】本発明の更に別の実施形態を示す概念図であ
る。FIG. 6 is a conceptual diagram showing still another embodiment of the present invention.
【図７】従来装置の構成を示す概念図である。FIG. 7 is a conceptual diagram showing a configuration of a conventional device.
【図８】別の従来装置の構成を示す概念図である。FIG. 8 is a conceptual diagram showing the configuration of another conventional device.
３ 排水 ７ オゾナイザー ９ 発泡器 １１ 放電槽 １３ａ、１３ｂ 放電電極 １７ エアポンプ ２１ 過酸化水素水添加装置 ２３ 撹拌装置 ２５ 撹拌プロペラ ３１ 放電槽 ３３ オゾン溶解槽 ３５ 液ポンプ ３７ 連結パイプ ４１ ｐＨ調整装置 ４３ ｐＨモニタ装置 ５１ 光触媒機能部材 ６１ 放電槽 ６３ 絶縁板 ６５ 上部区画 ６７ 下部区画 ６９ 供給孔 ７１ａ、７１ｂ 放電電極 3 Drainage 7 Ozonizer 9 Foamer 11 Discharge tank 13a, 13b Discharge electrode 17 Air pump 21 Hydrogen peroxide water adding device 23 Stirring device 25 Stirring propeller 31 Discharge tank 33 Ozone dissolving tank 35 Liquid pump 37 Connecting pipe 41 pH adjusting device 43 pH monitor Device 51 Photocatalytic function member 61 Discharge tank 63 Insulating plate 65 Upper section 67 Lower section 69 Supply holes 71a, 71b Discharge electrode
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D050 AA12 AB11 BB02 BB09 BC04 BC10 4D061 DA08 DB19 EA13 EB01 EB07 EB14 EB19 ED02 ED03 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D050 AA12 AB11 BB02 BB09 BC04 BC10 4D061 DA08 DB19 EA13 EB01 EB07 EB14 EB19 ED02 ED03
Claims (6)
槽内に互いに対向して配置された放電電極、該放電電極
に電気的に連絡された高電圧パルス電源、前記放電槽の
底部に設けられた発泡器、及び前記発泡器に連絡したオ
ゾン発生器を有してなることを特徴とする排水処理装
置。1. A discharge vessel containing wastewater to be treated, a discharge electrode disposed in the discharge vessel so as to face each other, a high-voltage pulse power supply electrically connected to the discharge electrode, and a bottom portion of the discharge vessel. A wastewater treatment device comprising: a foaming device provided; and an ozone generator connected to the foaming device.
槽内に互いに対向して配置された放電電極、該放電電極
に電気的に連絡された高電圧パルス電源、及び前記放電
槽の上部に設けられた過酸化水素水添加装置を有してな
ることを特徴とする排水処理装置。2. A discharge vessel containing wastewater to be treated, a discharge electrode disposed in the discharge vessel so as to face each other, a high-voltage pulse power supply electrically connected to the discharge electrode, and an upper part of the discharge vessel A wastewater treatment apparatus, comprising: a hydrogen peroxide water adding apparatus provided in the apparatus.
槽内に互いに対向して配置された放電電極、該放電電極
に電気的に連絡された高電圧パルス電源、液ポンプを備
えた連結管により前記放電槽に連絡し処理対象排水を収
容する溶解槽、前記溶解槽の底部に設けられた発泡器、
及び前記発泡器に連絡したオゾン発生器を有してなるこ
とを特徴とする排水処理装置。3. A discharge tank containing wastewater to be treated, a discharge electrode disposed in the discharge tank so as to face each other, a high-voltage pulse power supply electrically connected to the discharge electrode, and a connection including a liquid pump. A dissolving tank that communicates with the discharge tank by a pipe to contain the wastewater to be treated, a foaming device provided at the bottom of the dissolving tank,
And an ozone generator connected to the foamer.
タ装置が付設されていることを特徴とする請求項１乃至
請求項３のいずれかに記載の排水処理装置。4. The wastewater treatment apparatus according to claim 1, wherein a pH adjusting device and a pH monitoring device are attached to the discharge tank.
ていることを特徴とする請求項１乃至請求項３のいずれ
かに記載の排水処理装置。5. The wastewater treatment apparatus according to claim 1, wherein a photocatalytic function member is attached to the discharge tank.
部区画とに分割された放電槽、前記上部区画と下部区画
との内部にそれぞれ設けられ、互いに対向する放電電
極、前記放電槽の外に配置され前記放電電極に接続され
た高電圧パルス電源、及び前記放電槽の外側に設けられ
前記下部区画に連絡したエアポンプを有してなり、前記
放電槽の前記上部区画内に処理対象の排水が入れられる
ことを特徴とする排水処理装置。6. A discharge vessel whose interior is divided into an upper section and a lower section by an insulating plate with holes, discharge electrodes provided inside the upper section and the lower section, respectively, facing each other, and outside the discharge vessel. And a high-voltage pulse power supply connected to the discharge electrode, and an air pump provided outside the discharge vessel and connected to the lower compartment, and the drainage to be treated is disposed in the upper compartment of the discharge vessel. A wastewater treatment device characterized by containing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000115195A JP2001293478A (en) | 2000-04-17 | 2000-04-17 | Waste water treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000115195A JP2001293478A (en) | 2000-04-17 | 2000-04-17 | Waste water treating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001293478A true JP2001293478A (en) | 2001-10-23 |
Family
ID=18626888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000115195A Withdrawn JP2001293478A (en) | 2000-04-17 | 2000-04-17 | Waste water treating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001293478A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013013874A (en) * | 2011-07-06 | 2013-01-24 | Nagoya City | Plasma treatment device and treatment method |
| WO2013099292A1 (en) * | 2011-12-29 | 2013-07-04 | ダイキン工業株式会社 | Purification apparatus |
| JP2013139951A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Hot water supply system |
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| JP2013139947A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Hot water supply system |
| JP2013138649A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Purification apparatus |
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2000
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013013874A (en) * | 2011-07-06 | 2013-01-24 | Nagoya City | Plasma treatment device and treatment method |
| WO2013099292A1 (en) * | 2011-12-29 | 2013-07-04 | ダイキン工業株式会社 | Purification apparatus |
| JP2013139951A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Hot water supply system |
| JP2013138982A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Hot water supply system |
| JP2013138987A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Liquid purifying apparatus |
| JP2013138983A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Water recycling apparatus |
| JP2013139953A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Cleaning tower system |
| JP2013139947A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Hot water supply system |
| JP2013138649A (en) * | 2011-12-29 | 2013-07-18 | Daikin Industries Ltd | Purification apparatus |
| JP2013150975A (en) * | 2011-12-29 | 2013-08-08 | Daikin Industries Ltd | Purification apparatus |
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| EP2902370B1 (en) * | 2012-09-28 | 2020-10-21 | Daikin Industries, Ltd. | Water treatment device |
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