JP2000135488A - Purification of polluted water with organic matter - Google Patents
Purification of polluted water with organic matterInfo
- Publication number
- JP2000135488A JP2000135488A JP10310803A JP31080398A JP2000135488A JP 2000135488 A JP2000135488 A JP 2000135488A JP 10310803 A JP10310803 A JP 10310803A JP 31080398 A JP31080398 A JP 31080398A JP 2000135488 A JP2000135488 A JP 2000135488A
- Authority
- JP
- Japan
- Prior art keywords
- polluted water
- water
- high voltage
- electrolytic cell
- organic
- 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- Withdrawn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
- C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
-
- 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
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、有機汚濁水の浄化
方法に係り、例えば、下水、屎尿消化液、微細藻類を含
む汚染湖沼水等に含まれる微生物や菌類を効率よく破壊
または死滅させてＢＯＤ源等を低減することができる有
機汚濁水の浄化方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of purifying organic polluted water, for example, by efficiently destroying or killing microorganisms and fungi contained in sewage, manure digestion, contaminated lake water containing microalgae, and the like. The present invention relates to a method for purifying organic polluted water capable of reducing a BOD source and the like.
【０００２】[0002]
【従来の技術】水中に分散する、生物化学的酸素要求量
（以下、ＢＯＤという）等の原因物質である有機物など
の微粒子または微生物は、通常コロイド状で存在してい
ると考えられる。コロイドとは、一般に特殊な分散状態
にある物質（コウ質）またはその分散状態をいい、例え
ば大きさが数μｍから１ｎｍ程度の微粒子または微生物
が、媒質である水中に分散している状態もコロイドであ
ると考えられる。水中における、有機物の微粒子、微生
物、菌類をはじめとするＢＯＤ等の原因物質のコロイド
状態は、前記ＢＯＤ等の原因物質が、水との相互作用
の強い有機性の原子団、例えばカルボキシル基（−ＣＯ
ＯＨ）、アミノ基（−ＮＨ2 ）、水酸基（−ＯＨ）等の
親水基と結合して水中で安定している水和安定状態、ま
たは前記ＢＯＤ等の原因物質の粒子表面に形成されて
いる電気二重層どうしの静電気的な斥力が粒子間のファ
ンデアワールス力による凝集に対してエネルギー障壁を
つくり、準安定している疎水コロイド準安定状態と考え
られる。2. Description of the Related Art It is considered that fine particles or microorganisms such as organic substances that are dispersed in water and are a causative substance such as biochemical oxygen demand (hereinafter referred to as BOD) are usually present in a colloidal state. Colloid generally refers to a substance in a special dispersion state (kou) or a dispersion state thereof. For example, a state in which fine particles or microorganisms having a size of about several μm to about 1 nm are dispersed in water as a medium is also referred to as a colloid. It is considered to be. In water, the colloidal state of a causative substance such as BOD including organic fine particles, microorganisms and fungi is such that the causative substance such as the BOD is an organic atomic group having a strong interaction with water, such as a carboxyl group (−). CO
OH), amino group (-NH 2), and is formed into a hydroxyl group (-OH) hydration stable state of being bonded to the hydrophilic groups stable in water or the like or particle surfaces of the causative agent of the BOD and the like, The electrostatic repulsion between the electric double layers creates an energy barrier against agglomeration due to Van der Waals forces between particles, and is considered to be a metastable hydrophobic colloid metastable state.
【０００３】ＢＯＤ等の原因物質を含有する汚濁水の処
理方法としては、例えば活性汚泥法、生物膜を利用した
回転円板法等が挙げられるが、高濃度汚濁水を直接処理
することができず、また広大な装置設置スペースが必要
となるなど、必ずしも効率のよい処理方法ではなかっ
た。そこで、狭いスペースで、効率よくＢＯＤ等の原因
物質を分解、処理することができる有機汚濁水の処理方
法の開発が望まれていた。As a method for treating polluted water containing a causative substance such as BOD, there are, for example, an activated sludge method and a rotating disk method using a biofilm. However, high-concentration polluted water can be directly treated. However, this method is not necessarily an efficient processing method, for example, requiring a large equipment installation space. Therefore, development of a method for treating organic polluted water that can efficiently decompose and treat a causative substance such as BOD in a small space has been desired.
【０００４】ところで、水に不溶の液体が水中に分散し
たコロイド粒子を処理する方法として、電解槽を用いた
電解凝集法が知られている。図３は、このような電解凝
集法の原理を示す説明図である。図において、水２１中
に分散するコロイド粒子２２の表面は、例えば電気的に
負（−）に帯電しており、各粒子は互いに電気的に反発
することによって水中で安定な分散状態を維持してい
る。このようなコロイド液中に陽極と陰極を投入し、電
解することによってコロイド粒子２２に反対電荷（＋）
のイオンを与えると、前記コロイド粒子２２の電位は中
和され、コロイド分散状態が崩れて粒子が凝集する。こ
のとき、アルミニウム電極を用いることにより、凝集活
性を有するアルミニウムイオンを発生させ、これによっ
てコロイド粒子の凝集を促進し、凝集した粒子を、例え
ば沈降させて水と分離する。このような電解凝集方法
は、水とコロイド粒子とを分離するための大掛かりな静
置分離槽を必要とすることなく、比較的狭い場所で効率
よくコロイド粒子を分離、凝集することができるが、電
解電圧が数Ｖ、電流が数１００Ａの、低電圧高電流の直
流を用いるものであり、有機物を破壊または死滅させる
作用は弱い。[0004] As a method of treating colloid particles in which a liquid insoluble in water is dispersed in water, an electrolytic coagulation method using an electrolytic tank is known. FIG. 3 is an explanatory view showing the principle of such an electrolytic aggregation method. In the figure, the surface of colloidal particles 22 dispersed in water 21 is electrically negatively (-) charged, for example, and each particle maintains a stable dispersion state in water by repelling each other electrically. ing. An anode and a cathode are charged into such a colloid solution, and the colloid particles 22 are subjected to electrolysis, so that the colloid particles 22 have opposite charges (+).
Is applied, the potential of the colloid particles 22 is neutralized, the colloid dispersion state is broken, and the particles aggregate. At this time, by using the aluminum electrode, aluminum ions having aggregating activity are generated, thereby promoting the aggregation of the colloid particles, and the aggregated particles are separated from water by, for example, sedimentation. Such an electrocoagulation method can efficiently separate and agglomerate colloid particles in a relatively narrow place without requiring a large stationary separation tank for separating water and colloid particles, The method uses a low-voltage high-current DC having an electrolysis voltage of several V and a current of several hundred A, and has a weak effect of destroying or killing organic substances.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、上記
要請に鑑み、ＢＯＤ等の原因物質を含む汚濁水を効率よ
く処理し、しかもその後の微生物の繁殖を有効に抑える
ことができる有機汚濁水の浄化方法を提供することにあ
る。DISCLOSURE OF THE INVENTION An object of the present invention is to provide an organic pollutant capable of efficiently treating polluted water containing a causative substance such as BOD, and effectively suppressing the subsequent propagation of microorganisms. It is to provide a water purification method.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明者は、電解凝集技術を、水中に分散した有機
汚濁水のコロイド状態の破壊処理として用いた場合の、
電解電圧と有機汚濁物質の挙動等との関係等について種
々実験した結果、電解電圧を直流１，０００ボルト
（Ｖ）以上のパルス高電圧として有機汚濁水を処理する
ことにより、陽極近傍の有機汚濁物質は破壊または死滅
し、分解残渣は分解生成ガスであるＮ2 、ＣＯ 2 等と共
に浮上し、ガスを放出したのち沈降すること、および前
記高電圧パルスを与えることにより、少ない消費電力量
で上記の効果が得られることを見出し、本発明に到達し
た。Means for Solving the Problems To achieve the above object,
The present inventor has proposed that the electrolytic coagulation technology
When used as a colloidal destruction treatment of polluted water,
Regarding the relationship between the electrolysis voltage and the behavior of organic pollutants, etc.
As a result of various experiments, the electrolysis voltage was set to 1,000 VDC.
(V) Treating organic polluted water with pulse high voltage above
As a result, organic pollutants near the anode are destroyed or killed
And the decomposition residue is the decomposition product gas NTwo, CO TwoEtc.
Surface, settle after releasing gas, and
Low power consumption by giving high voltage pulse
It is found that the above effects can be obtained in the present invention, and reaches the present invention.
Was.
【０００７】すなわち、本願で特許請求する発明は、以
下のとおりである。 （１）生物化学的酸素要求量（ＢＯＤ）成分をはじめと
する汚染原因物質を含有する有機汚濁水の浄化方法にお
いて、前記有機汚濁水に高電圧パルスを印加して前記Ｂ
ＯＤ成分をはじめとする汚染原因物質を破壊または死滅
させたのち、分離することを特徴とする有機汚濁水の浄
化方法。That is, the invention claimed in the present application is as follows. (1) In a method for purifying organic polluted water containing a pollutant such as a biochemical oxygen demand (BOD) component, a high voltage pulse is applied to the organic polluted water to remove the BOD.
A method for purifying organic polluted water, comprising destructing or killing pollutants such as OD components and then separating them.
【０００８】（２）前記電圧が、直流１，０００〜３０
０，０００Ｖであることを特徴とする上記（１）記載の
有機汚濁水の浄化方法。 （３）前記高電圧パルスの繰り返し率が、１０〜３，０
００ｐｐｓ（ｐｕｌｓｅｐｅｒ ｓｅｃｏｎｄ）である
ことを特徴とする上記（１）または（２）に記載の有機
汚濁水の浄化方法。 （４）前記被処理汚濁水を攪拌、または振動させること
を特徴とする上記（１）〜（３）の何れかに記載の有機
汚濁水の処理方法。(2) The voltage is 1,000 to 30 DC.
The method for purifying organic polluted water according to the above (1), wherein the voltage is 000 V. (3) The repetition rate of the high voltage pulse is 10 to 3,0
The method for purifying organic polluted water according to the above (1) or (2), wherein the method is 00 pps (pulseper second). (4) The method for treating organic contaminated water according to any one of (1) to (3), wherein the contaminated water to be treated is stirred or vibrated.
【０００９】（５）前記攪拌または振動手段として超音
波発振器を用いることを特徴とする上記（１）〜（４）
の何れかに記載の有機汚濁水の処理方法。 （６）前記被処理汚濁水を、電解槽内の陽極近傍に連続
的に導入し、電解槽内に被処理汚濁水の循環流を形成し
ながら、前記高電圧パルスを印加することを特徴とする
上記（１）〜（５）の何れかに記載の有機汚濁水の処理
方法。(5) The above (1) to (4), wherein an ultrasonic oscillator is used as the stirring or vibrating means.
The method for treating organic polluted water according to any one of the above. (6) The high-voltage pulse is applied while continuously introducing the contaminated water to be treated near the anode in the electrolytic cell and forming a circulating flow of the contaminated water in the electrolytic cell. The method for treating organic polluted water according to any one of the above (1) to (5).
【００１０】本発明は、有機汚濁水を電解槽に導入し、
高電圧パルスを用いて処理し、ＢＯＤ成分をはじめとす
る汚染原因物質を破壊または死滅させたのち、分離する
ものである。汚染原因物質としては、ＢＯＤ成分の他、
全窒素（Ｔ−Ｎ）、全リン、ＳＳ（浮遊物質）、化学的
酸素要求量（ＣＯＤ）成分等が挙げられる。高電圧パル
スによって汚濁水中のＢＯＤ等の汚染原因物質が破壊ま
たは死滅する理由は、以下のように考えられる。The present invention introduces an organic polluted water into an electrolytic cell,
The treatment is carried out using a high-voltage pulse to destroy or kill pollutants such as BOD components and then separate them. As pollutants, in addition to BOD components,
Examples include total nitrogen (TN), total phosphorus, SS (suspended matter), and chemical oxygen demand (COD) components. The reason why the pollutant such as BOD in the polluted water is destroyed or killed by the high voltage pulse is considered as follows.
【００１１】すなわち、図１は、本発明の原理を示す模
式的な説明図である。図において、有機汚濁水中の汚濁
物質（以下、分散粒子ともいう）１は、疎水基３を介し
て、例えばカルボキシル基（−ＣＯＯＨ）、アミノ基
（−ＮＨ2 ）、水酸基（−ＯＨ）等の親水基２と結合し
ており、水和安定状態のコロイドとして水中で安定して
いると考えられる（ａ）。この状態で、汚濁水に高電圧
パルスを加えて電解し、親水基３の結合エネルギー以上
のエネルギーをコロイド粒子１に与えると親水基３が切
り離されて親水性コロイド粒子が疎水化する（ｂ）。疎
水化したコロイド粒子は、相互の衝突によって凝集する
（ｃ）。FIG. 1 is a schematic explanatory view showing the principle of the present invention. In the figure, pollutants (hereinafter also referred to as dispersed particles) 1 in organic polluted water are, for example, carboxyl groups (—COOH), amino groups (—NH 2 ), hydroxyl groups (—OH), etc. via hydrophobic groups 3. It is considered that it is bonded to the hydrophilic group 2 and is stable in water as a hydrate-stable colloid (a). In this state, a high-voltage pulse is applied to the contaminated water to perform electrolysis, and when energy equal to or more than the binding energy of the hydrophilic group 3 is applied to the colloid particles 1, the hydrophilic group 3 is cut off and the hydrophilic colloid particles become hydrophobic (b). . The hydrophobized colloid particles are aggregated by mutual collision (c).
【００１２】親水基の切断は、コロイド液に加えられた
高電圧パルスのエネルギーにより下記（１）、（２）式
に従って陽極に生じた“・ＯＨ”（ＯＨラジカル）によ
って起こると考えられる。It is considered that the cleavage of the hydrophilic group is caused by ".OH" (OH radical) generated at the anode according to the following equations (1) and (2) by the energy of the high voltage pulse applied to the colloid solution.
【００１３】 Ｈ2 Ｏ → Ｈ+ ＋ＯＨ- ・・・・・（１） ＯＨ- → ・ＯＨ＋ｅ- ・・・・・・（２） すなわち、Ｈ2 Ｏの電気分解によって生じたＯＨラジカ
ルが有機物の、例えばタンパク質を形成する親水基およ
び一部のカーボンボンドを切断し、アオコなどの微生物
や大腸菌等の菌類を死滅させる。このときアミノ基が分
解したＮ2 、カルボキシル基が分解したＣＯ2 、Ｏ2 、
Ｈ2 等の分解ガスが発生する。発生したガスは分解残渣
（死滅した微生物等）を同伴して浮上し、分解残渣と分
離して大気に拡散する。ガスと分離した分解残渣は水中
に沈降する。このように、ＯＨラジカルには滅菌、殺菌
作用がある。なお、ＯＨラジカルが発生しても水中に有
機微粒子等の成分が存在しない場合は、ただちに消滅
し、酸素を放出して最終的にＨ2 Ｏになる。H 2 O → H + + OH − (1) OH − → OH + e − (2) That is, OH radicals generated by the electrolysis of H 2 O are For example, a hydrophilic group forming a protein and a part of carbon bonds are cleaved to kill microorganisms such as blue water and fungi such as Escherichia coli. At this time, N 2 where the amino group was decomposed, CO 2 and O 2 where the carboxyl group was decomposed,
Decomposition gas such as H 2 is generated. The generated gas floats together with decomposition residues (dead microorganisms and the like), separates from the decomposition residues, and diffuses into the atmosphere. The decomposition residue separated from the gas settles in water. Thus, the OH radical has a sterilizing and bactericidal action. In the case where components such as organic fine particles are not present in water even if OH radicals are generated, they disappear immediately, release oxygen, and finally become H 2 O.
【００１４】また高電圧パルスによって引き起こされる
電解によって汚濁水中の粒子が荷電し、疎水コロイドの
準安定状態も崩れるので、相互のファンデアワールス力
によってコロイド粒子が凝集し、最終的に沈降する。本
発明において、電解電圧は直流数千〜数十万Ｖ、例えば
１，０００〜３００，０００Ｖであり、好ましくは数万
〜数十万Ｖ、例えば１０，０００〜３００，０００Ｖで
ある。電解電圧が高すぎると、エネルギーロスが増大す
るうえ、高強度部材が必要となる。一方、電解電圧が低
すぎると、ＯＨラジカルの発生が不十分となり、分散粒
子と結合した親水基を切断することができず、所期の目
的を達成できなくなる。このとき電流値は、１００ｍＡ
〜１００Ａ、好ましくは１〜数十Ａ、例えば１〜３０Ａ
である。電流値が高すぎるとエネルギー利用率が低下
し、発熱し、低すぎると処理量が少なくなる。。高電圧
パルスの繰り返し率は数十〜数千ｐｐｓ、例えば１０〜
３，０００ｐｐｓであり、好ましくは数十〜数百ｐｐ
ｓ、例えば１０〜３００ｐｐｓである。パルス繰り返し
率が大きすぎると、電力消費量が増大して効率が低下
し、小さすぎると、ＯＨラジカルの発生が不十分となっ
て有機汚濁物の破壊または死滅が不十分となる。Further, the particles in the contaminated water are charged by the electrolysis caused by the high-voltage pulse, and the metastable state of the hydrophobic colloid is also collapsed. Therefore, the colloid particles are aggregated by the mutual van der Waals force and finally settle. In the present invention, the electrolysis voltage is several thousand to several hundred thousand V DC, for example, 1,000 to 300,000 V, and preferably several hundred thousand to several hundred thousand V, for example, 10,000 to 300,000 V. If the electrolysis voltage is too high, energy loss increases and a high-strength member is required. On the other hand, if the electrolysis voltage is too low, the generation of OH radicals becomes insufficient, so that the hydrophilic group bonded to the dispersed particles cannot be cut, and the intended purpose cannot be achieved. At this time, the current value is 100 mA
~ 100A, preferably 1 ~ Several A, for example 1 ~ 30A
It is. If the current value is too high, the energy utilization rate decreases and heat is generated, and if the current value is too low, the throughput decreases. . The repetition rate of the high voltage pulse is several tens to several thousand pps, for example, 10 to
3,000 pps, preferably several tens to several hundreds pp
s, for example, 10 to 300 pps. If the pulse repetition rate is too high, the power consumption increases and the efficiency decreases.
【００１５】本発明においてパルス発生装置として、例
えばピーク電圧２００ｋＶ、最大パルス繰り返し率１４
０ｐｐｓの仕様を有するロータリスパークギャプパルス
発生器が使用される。本発明において、電解槽内の被処
理汚濁水を機械的に循環または攪拌することが好まし
い。これによって分散コロイド粒子のＯＨラジカルとの
接触機会が増大して処理効率が向上するとともに、疎水
化した粒子の凝集機会も増大し、自重によって沈降し易
くなる。循環手段としては、例えば電解槽内に供給する
被処理汚濁水をＯＨラジカルが発生する陽極近傍に連続
的に供給する方法が挙げられる。In the present invention, as the pulse generator, for example, a peak voltage of 200 kV and a maximum pulse repetition rate of 14
A rotary spark gap pulse generator having a specification of 0 pps is used. In the present invention, it is preferable to mechanically circulate or agitate the polluted water in the electrolytic cell. As a result, the chance of contact of the dispersed colloid particles with OH radicals is increased to improve the treatment efficiency, and the chance of agglomeration of the hydrophobized particles is also increased, and the particles are likely to settle by their own weight. As the circulating means, for example, there is a method of continuously supplying polluted water to be supplied into the electrolytic cell to the vicinity of the anode where OH radicals are generated.
【００１６】本発明において、被処理汚濁水に連続的に
振動エネルギーを投与することが好ましい。これによっ
て高電圧パルスによる電解中に発生するガスの分離、固
体コロイド粒子の凝集が促進する。振動エネルギーの投
与手段としては、例えば超音波発振器を使用することが
できる。本発明において、凝集した粒子の沈降促進のた
めに傾斜シックナー（濃縮器）を採用することもでき
る。In the present invention, it is preferable to continuously apply vibration energy to the contaminated water to be treated. This promotes separation of gas generated during electrolysis by high voltage pulse and aggregation of solid colloid particles. As a means for administering vibration energy, for example, an ultrasonic oscillator can be used. In the present invention, an inclined thickener (concentrator) may be employed to promote the sedimentation of the aggregated particles.
【００１７】[0017]
【発明の実施の形態】次に本発明を実施例によってさら
に詳細に説明する。図２は、本発明の一実施例に用いる
電解装置の説明図である。この装置は、電解槽１１と、
該電解槽１１内に配置された陽極１２および陰極１３
と、前記陽極１２の上方に設けられたガス採取用の水封
装置１５とから主として構成されている。１０は、直流
高電圧パルス発生器である。Next, the present invention will be described in more detail by way of examples. FIG. 2 is an explanatory diagram of an electrolytic device used in one embodiment of the present invention. This apparatus comprises an electrolytic cell 11 and
An anode 12 and a cathode 13 arranged in the electrolytic cell 11
And a gas-sealing water sealing device 15 provided above the anode 12. 10 is a DC high voltage pulse generator.
【００１８】このような構成の電解装置の電解槽１１内
に、ＢＯＤ等の原因物質として、例えばアオコを均一に
分散した、ＢＯＤ：５，０００ｐｐｍの有機汚濁水１４
を導入し、高電圧パルス発生装置１０により２ｋＶ〜５
０ｋＶの高電圧を、パルスの繰り返し率３０〜１００ｐ
ｐｓで電解したところ、陽極１２の近傍に、気泡に同伴
した死滅したアオコが浮上し、ガスと分離したのち、凝
集して電解槽内に沈降した。処理水のＢＯＤは２０ｐｐ
ｍであった。また水封装置１５内の発生ガス１６を採取
してその成分をガスクロマトグラフィによって分析した
ところ、Ｎ2 、ＣＯ2 、Ｏ2 、その他が４２：１０：３
１：１７で検出された。In the electrolytic cell 11 of the electrolysis apparatus having such a structure, organic polluted water 14 having a BOD of 5,000 ppm, in which, for example, algae is uniformly dispersed as a causative substance of BOD or the like.
Is introduced, and 2 kV to 5
A high voltage of 0 kV is applied at a pulse repetition rate of 30 to 100 p.
When electrolysis was performed at ps, dead blue water accompanied by air bubbles floated near the anode 12, separated from gas, aggregated, and settled in the electrolytic cell. BOD of treated water is 20pp
m. Further, the generated gas 16 in the water sealing device 15 was sampled and its components were analyzed by gas chromatography, and it was found that N 2 , CO 2 , O 2 , and others were 42: 10: 3.
1:17 detected.
【００１９】本実施例によれば、有機汚濁水を高電圧パ
ルスで電解したことにより、ＢＯＤ等の原因物質が死滅
または分解するので、前記有機汚濁水が効率よく浄化さ
れる。また、高電圧の電気分解によって発生したＯＨラ
ジカルが殺菌作用を有するので、その後の微生物の繁殖
を抑制することができる。また、従来の活性汚泥等を用
いる処理方法に比べて必要スペースが大幅に低減でき、
処理効率が向上する。本実施例において、被処理汚濁水
を振動する手段として陽極１２の近傍に超音波発振器を
設けることが好ましい。これによって死滅または分解し
たアオコの凝集が促進される。本実施例は、パッチ式で
行ったが、被処理汚濁水を連続的に、例えば陽極１２近
傍に供給し、電解槽内に循環流を形成しながら一部を抜
き取る、連続処理を行うこともできる。According to this embodiment, the organic polluted water is electrolyzed with a high voltage pulse, so that the causative substances such as BOD are killed or decomposed, so that the organic polluted water is efficiently purified. Moreover, since the OH radicals generated by the high-voltage electrolysis have a bactericidal action, the subsequent propagation of microorganisms can be suppressed. Also, the required space can be significantly reduced as compared with the conventional treatment method using activated sludge, etc.
Processing efficiency is improved. In this embodiment, it is preferable to provide an ultrasonic oscillator near the anode 12 as a means for vibrating the contaminated water to be treated. This promotes the aggregation of dead or degraded blue water. In the present embodiment, the patch method was used. However, it is also possible to perform a continuous treatment in which the contaminated water to be treated is continuously supplied, for example, in the vicinity of the anode 12, and a part is withdrawn while forming a circulating flow in the electrolytic cell. it can.
【００２０】[0020]
【発明の効果】本願の請求項１記載の発明によれば、有
機汚濁水に高電圧パルスを印加して処理することによ
り、ＢＯＤ成分をはじめとする汚染原因物質を破壊また
は死滅させることができるので、これを分離して浄化水
を得ることができる。本願の請求項２記載の発明によれ
ば、電圧を、直流１，０００〜３００，０００Ｖとした
ことにより、上記発明の効果に加え、水の電解によるＯ
Ｈラジカルの発生が促進され、ＢＯＤ等の原因物質の分
解または死滅効果がより向上する。According to the first aspect of the present invention, by applying a high-voltage pulse to the organic polluted water and treating it, it is possible to destroy or kill pollutants such as BOD components. Therefore, this can be separated to obtain purified water. According to the invention as set forth in claim 2 of the present application, by setting the voltage to DC 1,000 to 300,000 V, in addition to the effect of the above invention, O
The generation of H radicals is promoted, and the effect of decomposing or killing a causative substance such as BOD is further improved.
【００２１】本願の請求項３記載の発明によれば、高電
圧パルスの繰り返し率を１０〜３，０００ｐｐｓとした
ことにより、上記発明の効果に加え、全消費電力を節約
して効率よく有機汚濁水を浄化することができる。本願
の請求項４記載の発明によれば、被処理汚濁水を攪拌、
または振動させることにより、ＢＯＤ等の原因物質とＯ
Ｈラジカルとの接触機会が増大して処理効率が向上する
うえ、死滅または分解した粒子の凝集効果が増大する。
本願の請求項５記載の発明によれば、振動手段として超
音波発振器を用いることにより、上記発明と同様、ＢＯ
Ｄ等の原因物質とＯＨラジカルとの接触機会が増大して
処理効率が向上する上、死滅または分解した粒子の凝集
効果が増大する。According to the third aspect of the present invention, by setting the repetition rate of the high voltage pulse to 10 to 3,000 pps, in addition to the effect of the above-mentioned invention, the total power consumption can be saved and the organic pollution can be efficiently performed. Can purify water. According to the invention of claim 4 of the present application, the polluted water to be treated is stirred,
Or, by vibrating, OOD and BOD
The chance of contact with H radicals is increased to improve the treatment efficiency, and the aggregation effect of the dead or decomposed particles is increased.
According to the invention as set forth in claim 5 of the present application, by using an ultrasonic oscillator as the vibration means, the same as in the above invention, BO
The chance of contact between the causative substance such as D and the OH radical is increased, so that the treatment efficiency is improved and the aggregation effect of the dead or decomposed particles is increased.
【００２２】本願の請求項６記載の発明によれば、被処
理汚濁水を、電解槽内の陽極近傍に連続的に導入し、電
解槽内に被処理汚濁水の循環流を形成しながら、前記高
電圧パルスを印加することにより、上記発明と同様、Ｂ
ＯＤ等の原因物質のＯＨラジカルとの接触機会が増大し
て処理効率が向上する上、死滅または分解した粒子の凝
集効果が増大する。According to the invention of claim 6 of the present application, the polluted water to be treated is continuously introduced into the vicinity of the anode in the electrolytic cell, and a circulating flow of the polluted water is formed in the electrolytic cell. By applying the high-voltage pulse, B
The chance of contact with the OH radical of the causative substance such as OD is increased, so that the treatment efficiency is improved and the agglutination effect of the dead or decomposed particles is increased.
【図１】本発明の原理を示す模式的説明図。FIG. 1 is a schematic explanatory view showing the principle of the present invention.
【図２】本発明の実施例に適用する装置の説明図。FIG. 2 is an explanatory diagram of an apparatus applied to an embodiment of the present invention.
【図３】従来技術の説明図。FIG. 3 is an explanatory diagram of a conventional technique.
１…分散コロイド粒子、２…親水基、３…疎水基、１０
…高電圧パルス発生器、１１…電解槽、１２…陽極、１
３…陰極、１４…被処理汚濁水、１５…水封装置、１６
…発生ガス。1 ... dispersed colloidal particles, 2 ... hydrophilic group, 3 ... hydrophobic group, 10
... high voltage pulse generator, 11 ... electrolytic cell, 12 ... anode, 1
3 ... cathode, 14 ... contaminated water to be treated, 15 ... water sealing device, 16
... Evolved gas.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 磯貝 和博 東京都中央区築地５丁目６番４号 三井造 船株式会社内 Ｆターム(参考） 4D037 AA05 AA11 AA12 AB01 AB03 BA26 CA04 4D061 DA02 DA08 DA09 DB01 DB02 DB03 DB16 DC06 EA13 EB02 EB07 ED15 FA20 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuhiro Isogai 6-6-4 Tsukiji, Chuo-ku, Tokyo Mitsui Engineering & Shipbuilding Co., Ltd. F-term (reference) 4D037 AA05 AA11 AA12 AB01 AB03 BA26 CA04 4D061 DA02 DA08 DA09 DB01 DB02 DB03 DB16 DC06 EA13 EB02 EB07 ED15 FA20
Claims (6)
はじめとする汚染原因物質を含有する有機汚濁水の浄化
方法において、前記有機汚濁水に高電圧パルスを印加し
て前記ＢＯＤ成分をはじめとする汚染原因物質を破壊ま
たは死滅させたのち、分離することを特徴とする有機汚
濁水の浄化方法。1. A method for purifying organic polluted water containing a pollutant such as a biochemical oxygen demand (BOD) component, wherein a high voltage pulse is applied to the organic polluted water to remove the BOD component. A method for purifying organic polluted water, comprising destructing or killing a pollutant to be separated and separating the pollutant.
０００Ｖであることを特徴とする請求項１記載の有機汚
濁水の浄化方法。2. The method according to claim 1, wherein the voltage is 1,000 to 300 DC.
The method for purifying organic polluted water according to claim 1, wherein the voltage is 000V.
〜３，０００ｐｐｓ（ｐｕｌｓｅ ｐｅｒ ｓｅｃｏｎ
ｄ）であることを特徴とする請求項１または２に記載の
有機汚濁水の浄化方法。3. The high voltage pulse repetition rate is 10
~ 3,000 pps (pulse per second)
The method for purifying organic polluted water according to claim 1 or 2, wherein d) is satisfied.
せることを特徴とする請求項１〜３の何れかに記載の有
機汚濁水の処理方法。4. The method for treating organic polluted water according to claim 1, wherein the polluted water to be treated is stirred or vibrated.
振器を用いることを特徴とする請求項１〜４の何れかに
記載の有機汚濁水の処理方法。5. The method for treating organic polluted water according to claim 1, wherein an ultrasonic oscillator is used as said stirring or vibrating means.
傍に連続的に導入し、電解槽内に被処理汚濁水の循環流
を形成しながら、前記高電圧パルスを印加することを特
徴とする請求項１〜５の何れかに記載の有機汚濁水の処
理方法。6. The method according to claim 1, wherein the contaminated water to be treated is continuously introduced into the vicinity of an anode in the electrolytic cell, and the high voltage pulse is applied while forming a circulating flow of the contaminated water in the electrolytic cell. The method for treating organic polluted water according to any one of claims 1 to 5, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10310803A JP2000135488A (en) | 1998-10-30 | 1998-10-30 | Purification of polluted water with organic matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10310803A JP2000135488A (en) | 1998-10-30 | 1998-10-30 | Purification of polluted water with organic matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000135488A true JP2000135488A (en) | 2000-05-16 |
Family
ID=18009633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10310803A Withdrawn JP2000135488A (en) | 1998-10-30 | 1998-10-30 | Purification of polluted water with organic matter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000135488A (en) |
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| JP2007105728A (en) * | 2006-11-24 | 2007-04-26 | National Institute Of Advanced Industrial & Technology | Method for utilizing nano-bubbles and apparatus therefor |
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| US9187347B2 (en) | 2002-11-19 | 2015-11-17 | Xogen Technologies Inc. | Treatment of a waste stream through production and utilization of oxyhydrogen gas |
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1998
- 1998-10-30 JP JP10310803A patent/JP2000135488A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702890A3 (en) * | 2002-11-19 | 2007-05-30 | Xogen Technologies Inc. | Treatment of a waste stream through production and utilization of oxyhydrogen gas |
| US7837882B2 (en) | 2002-11-19 | 2010-11-23 | Xogen Technologies Inc. | Treatment of a waste stream through production and utilization of oxyhydrogen gas |
| US9187347B2 (en) | 2002-11-19 | 2015-11-17 | Xogen Technologies Inc. | Treatment of a waste stream through production and utilization of oxyhydrogen gas |
| US9296629B2 (en) | 2002-11-19 | 2016-03-29 | Xogen Technologies Inc. | Treatment of a waste stream through production and utilization of oxyhydrogen gas |
| JP2007105728A (en) * | 2006-11-24 | 2007-04-26 | National Institute Of Advanced Industrial & Technology | Method for utilizing nano-bubbles and apparatus therefor |
| JP4524406B2 (en) * | 2006-11-24 | 2010-08-18 | 独立行政法人産業技術総合研究所 | Method and apparatus for purifying polluted water using nanobubbles |
| JP2008173523A (en) * | 2007-01-16 | 2008-07-31 | Mitsui Zosen Plant Engineering Inc | Water purifying treatment apparatus |
| CN103819036A (en) * | 2014-02-27 | 2014-05-28 | 盛发环保科技（厦门）有限公司 | Treating method for desulfurization waste water of power plant |
| CN103819036B (en) * | 2014-02-27 | 2015-03-04 | 盛发环保科技（厦门）有限公司 | Treating method for desulfurization waste water of power plant |
| CN107021553A (en) * | 2017-03-13 | 2017-08-08 | 北京工业大学 | Driving source landscape water removes algae and algae energy utilization system |
| CN107827211A (en) * | 2017-12-13 | 2018-03-23 | 重庆大学 | A kind of electrochemical reaction cell for handling algae-containing water |
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