JP2006239653A - Purifying equipment - Google Patents

Purifying equipment Download PDF

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JP2006239653A
JP2006239653A JP2005062370A JP2005062370A JP2006239653A JP 2006239653 A JP2006239653 A JP 2006239653A JP 2005062370 A JP2005062370 A JP 2005062370A JP 2005062370 A JP2005062370 A JP 2005062370A JP 2006239653 A JP2006239653 A JP 2006239653A
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tank
ozone
wavelength
ultraviolet light
water
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JP4661275B2 (en
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Tatsuyuki Iwasaki
達行 岩崎
Kunio Kanamaru
国夫 金丸
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Iwasaki Denki KK
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Iwasaki Denki KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a miniaturizable purifying equipment, suppressing generation of waste such as sludge. <P>SOLUTION: This purifying equipment is provided with a purification tank 11 receiving flowing-in drain; ultraviolet lamps 22 emitting ultraviolet light of at least two wavelengths of a first wavelength (185 nm) to be able to form ozone from oxygen in air and to be able to form hydroxy radicals from water, and a second wavelength (254 nm) to be able to form hydroxy radicals from ozone and water; multiple jackets 21 with the lamps 22 disposed therein allowing to emit the ultraviolet light in the drain of the purification tank 11; and an air pump 26 sending out ozone generated in the jackets to the purification tank 11. The equipment is composed so that the hydroxy radicals are formed by irradiating water in the purification tank with the first wavelength ultraviolet light, and so that the hydroxy radicals are formed by irradiating ozone sent into the purification tank 11 with the second wavelength ultraviolet light. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、水の浄化技術に係り、特に、排水などに含まれているノルマルヘキサン抽出物質を分解するための技術に関する。   The present invention relates to a water purification technique, and more particularly to a technique for decomposing a normal hexane extract contained in waste water or the like.

家庭排水や飲食店等から排出される排水には規制物質であるノルマルヘキサン抽出物質が含まれており、このノルマルヘキサン抽出物質を除去して排水を浄化するための浄化装置が従来から知られている。この種の浄化装置としては、微生物を利用した装置（例えば、特許文献１参照）や、加圧浮上処理法を利用した装置（例えば、特許文献２参照）などの種々のものが提案されている。
特開２００４−３５１３０３号公報 特開平５−３１７８４７号公報 Domestic wastewater and wastewater discharged from restaurants, etc. contain a normal hexane extract, which is a regulated substance, and purification devices for purifying wastewater by removing this normal hexane extract have been known. Yes. As this type of purification apparatus, various apparatuses such as an apparatus using microorganisms (for example, see Patent Document 1) and an apparatus using a pressure levitation treatment method (for example, see Patent Document 2) have been proposed. .
JP 2004-351303 A JP-A-5-317847

しかしながら、従来の浄化装置にあっては、装置が大規模化し、さらには、浄化処理の結果として汚泥などの廃棄物が発生する、といった問題がある。
本発明は、上述した事情に鑑みてなされたものであり、コンパクト化が可能であり、かつ、汚泥などの廃棄物の発生を抑制することのできる浄化装置を提供することを目的とする。 However, the conventional purification apparatus has a problem that the apparatus becomes large-scale, and waste such as sludge is generated as a result of the purification treatment.
This invention is made | formed in view of the situation mentioned above, and aims at providing the purification apparatus which can be reduced in size and can suppress generation | occurrence | production of wastes, such as sludge.

上記目的を達成するために、本発明は、排水が流入する浄化槽と、空気中の酸素からオゾンを生成可能であり、かつ、水からヒドロキシラジカルを生成可能な第１波長、および、オゾンと水とからヒドロキシラジカルを生成可能な第２波長の少なくとも２つの波長の紫外光を放射する紫外線ランプと、前記浄化槽内の排水中に前記紫外光を放射可能に前記紫外線ランプを配置する複数のジャケットと、前記紫外線ランプの紫外光によって前記ジャケット内に発生したオゾンを前記浄化槽内に送り出すポンプとを備え、前記ジャケットを前記第１波長および前記第２波長の紫外光を透過する材質にて形成して、前記浄化槽内の水に前記第１波長の紫外光が照射され前記ヒドロキシラジカルが生成されると共に、前記浄化槽内に送り出されたオゾンに前記第２波長の紫外光が照射され前記ヒドロキシラジカルが生成されるように構成したことを特徴とする浄化装置を提供する。   In order to achieve the above object, the present invention provides a septic tank into which wastewater flows, a first wavelength capable of generating ozone from oxygen in the air, and capable of generating hydroxy radicals from water, and ozone and water. An ultraviolet lamp that emits ultraviolet light of at least two wavelengths of the second wavelength capable of generating hydroxy radicals from the light source, and a plurality of jackets that arrange the ultraviolet lamp so that the ultraviolet light can be emitted into the waste water in the septic tank; A pump for sending ozone generated in the jacket by ultraviolet light of the ultraviolet lamp into the septic tank, and forming the jacket from a material that transmits ultraviolet light of the first wavelength and the second wavelength. The water in the septic tank is irradiated with the ultraviolet light of the first wavelength to generate the hydroxy radicals, and the ozono fed into the septic tank Ultraviolet light of the second wavelength to provide a cleaning apparatus characterized by being configured such that the hydroxyl radical is irradiated is generated.

また本発明は、上記発明において、前記浄化槽に、前記排水が流入する流入槽と、前記排水を浄化するための反応槽と、前記反応槽にて浄化された排水を流出する流出槽とを互いに連通させて設け、前記紫外線ランプを収容する複数の前記ジャケットを前記反応槽に配設するとともに、少なくとも前記流入槽および前記反応槽に前記オゾンを送り込むようにしたことを特徴とする。   Further, the present invention is the above invention, wherein an inflow tank into which the waste water flows, a reaction tank for purifying the waste water, and an outflow tank from which the waste water purified in the reaction tank flows out are connected to each other. The plurality of jackets that are provided in communication with each other and that accommodate the ultraviolet lamp are disposed in the reaction tank, and at least the ozone is fed into the inflow tank and the reaction tank.

また本発明は、上記発明において、前記浄化槽の内部を２枚の仕切り板により仕切って前記流入槽、前記反応槽および前記流出槽を形成し、前記流入槽に前記排水の流入口を設け、前記流出槽に前記排水を排出する排出口を設けるとともに、前記排出口の形成位置を、前記仕切板の上縁および前記流入口の各々よりも低くしたことを特徴とする。   Further, the present invention is the above invention, wherein the inflow tank, the reaction tank and the outflow tank are formed by dividing the inside of the septic tank by two partition plates, and the drainage inlet is provided in the inflow tank, A discharge port for discharging the waste water is provided in the outflow tank, and the formation position of the discharge port is set lower than each of the upper edge of the partition plate and the inflow port.

本発明によれば、オゾンを生成するための紫外線ランプを排水中に配置するとともに、当該オゾンを排水中に送り込むことで、当該紫外線ランプが放射する第１および第２波長の紫外光によってオゾンと水とから、より効率的にヒドロキシラジカルを生成することが可能であり、排水中に最初からオゾンが存在しない場合に比べ、当該排水中に高濃度にヒドロキシラジカルを供給することが可能となる。したがって、オゾン生成装置とヒドロキシラジカル生成装置とを別体に設ける必要がないため浄化装置のコンパクト化が図られる。また、オゾンとヒドロキシラジカルとによる促進酸化処理により、排水に含まれるノルマルヘキサン抽出物質が酸化されて親水性を有する物質に分解されて排水中に溶け込むため、汚泥などの廃棄物の発生が抑制される。   According to the present invention, the ultraviolet lamp for generating ozone is disposed in the wastewater, and the ozone is fed into the wastewater by the ultraviolet light of the first and second wavelengths emitted by the ultraviolet lamp. Hydroxyl radicals can be generated more efficiently from water, and it is possible to supply hydroxy radicals at a higher concentration in the wastewater than when ozone is not present in the wastewater from the beginning. Therefore, since it is not necessary to provide the ozone generator and the hydroxy radical generator separately, the purification device can be made compact. In addition, the accelerated oxidization treatment with ozone and hydroxy radicals oxidizes the normal hexane extract material contained in the wastewater, breaks it down into a hydrophilic material, and dissolves it in the wastewater, thus reducing the generation of waste such as sludge. The

以下図面を参照して、本発明の実施の形態について説明する。
図１は本実施の形態に係る浄化装置１０を備えた浄化システム１の概略構成を示す図である。この図に示すように、浄化システム１は、マンションやビルなどの建物２のフロア３（マンションなどの集合住宅にあっては各フロアの居住区）ごとに配設されたフロア排水管４と、各フロア排水管４が接続され、それぞれのフロア３から排出された水を地下に導く主排水管５とを備え、さらに、浄化システム１は、地下に埋設された貯留槽６および浄化装置１０とを備えている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing a schematic configuration of a purification system 1 including a purification device 10 according to the present embodiment. As shown in this figure, the purification system 1 includes a floor drain pipe 4 arranged for each floor 3 of a building 2 such as a condominium or a building (in the case of an apartment house such as a condominium, a residential area of each floor), Each floor drain pipe 4 is connected, and has a main drain pipe 5 that guides the water discharged from each floor 3 to the underground. Further, the purification system 1 includes a storage tank 6 and a purification apparatus 10 buried underground. It has.

貯留槽６には上記主排水管５の下端５Ａが接続され、それぞれのフロア３から排出された排水が主配水管５を介して導かれて貯留される。この貯留槽６には連結管７を介して浄化装置１０が接続され、貯留槽６から浄化装置１０に排水が流入するように構成されている。
浄化装置１０は排水を浄化して下水道９などに排出するものであり、特に、本実施の形態では、浄化装置１０が、規制の対象であるノルマルヘキサン抽出物質（動植物油）を浄化処理して下水道９などに排出することとしている。 The storage tank 6 is connected to the lower end 5 </ b> A of the main drain pipe 5, and the drainage discharged from each floor 3 is guided and stored through the main distribution pipe 5. A purification device 10 is connected to the storage tank 6 via a connecting pipe 7 so that drainage flows from the storage tank 6 into the purification device 10.
The purification device 10 purifies the waste water and discharges it to the sewer 9 or the like. In particular, in the present embodiment, the purification device 10 purifies the normal hexane extract material (animal and vegetable oil) that is subject to regulation. It will be discharged into the sewer 9 and the like.

図２は浄化装置１０の構成を模式的に示す斜視図であり、図３はその断面図である。なお、浄化装置１０の上面は天板により覆われるが、その図示を省略する。また、図２および図３に示す各部はあくまでも模式的に示すものであり、それぞれの寸法は正確ではない。これらの図に示すように、浄化装置１０は、大別して、浄化槽１１と、オゾンガス（Ｏ3）を発生するオゾンガス発生部１２と、このオゾンガスを浄化槽１１に導入するオゾンガス導入部１３とを備えている。 FIG. 2 is a perspective view schematically showing the configuration of the purification device 10, and FIG. 3 is a sectional view thereof. In addition, although the upper surface of the purification apparatus 10 is covered with a top plate, the illustration is abbreviate | omitted. Moreover, each part shown to FIG. 2 and FIG. 3 is shown typically to the last, and each dimension is not exact. As shown in these drawings, the purification apparatus 10 is roughly divided into a purification tank 11, an ozone gas generation section 12 that generates ozone gas (O 3 ), and an ozone gas introduction section 13 that introduces the ozone gas into the purification tank 11. Yes.

浄化槽１１は上面が開放した、縦Ｄが約１．０ｍ（メートル）、横Ｗが約１．１５ｍ、高さＨが約１．５ｍの略直方体の箱型に形成されている。この浄化槽１１の左右両側面のうち、一方の側面（ここでは左側面）１１Ａに上記連結管７（図１参照）が接続される流入口１４が形成され、また、他方の側面（ここでは右側面）１１Ｂには浄化後の排水を下水道９などに排出するための図示せぬ排出管が接続される流出口１５が形成されている。これら流入口１４および流出口１５は、側面１１Ａ、１１Ｂの上縁部が略矩形に切り欠かれて形成され、流入口１４に対して流出口１５が低位になるように設けられている。これにより、浄化槽１１に流入した排水が上記貯留槽６に逆流してしまう事がなく、また、浄化槽１１内の水位が流出口１５の形成位置の高さ（約１．２ｍ）に維持されることになる。   The septic tank 11 is formed in a substantially rectangular parallelepiped box shape having an open upper surface, a length D of about 1.0 m (meters), a width W of about 1.15 m, and a height H of about 1.5 m. Of the left and right side surfaces of the septic tank 11, an inlet 14 to which the connecting pipe 7 (see FIG. 1) is connected is formed on one side surface (here, the left side surface) 11A, and the other side surface (here, the right side). Surface) 11B is formed with an outlet 15 to which a discharge pipe (not shown) for discharging the purified waste water to the sewer 9 or the like is connected. The inflow port 14 and the outflow port 15 are formed by cutting the upper edges of the side surfaces 11A and 11B into a substantially rectangular shape, and are provided so that the outflow port 15 is lower than the inflow port 14. As a result, the wastewater that has flowed into the septic tank 11 does not flow back into the storage tank 6, and the water level in the septic tank 11 is maintained at the height (about 1.2 m) at which the outlet 15 is formed. It will be.

浄化槽１１の内部は２枚の仕切板３０、３１により仕切られて、流入槽１７と、反応槽１８と、流出槽１９との３つの槽に区分され、それぞれの槽１７、１８、１９が浄化槽１１の底部にて連通し、上記流入口１４から流入した排水が流入槽１７、反応槽１８、流出槽１９を順に経由して上記流出口１５から流出する。このとき、流入槽１７、反応槽１８、流出槽１９のぞれぞれの横幅は、０．１５ｍ、０．８５ｍ、０．１５ｍとされている。すなわち、流入槽１７、反応槽１８および流出槽１９のそれぞれの容量は０．２ｍ3、１．０ｍ3、０．２ｍ3であり、また、通水量は毎時約２ｍ3とされている。 The inside of the septic tank 11 is partitioned by two partition plates 30 and 31, and is divided into three tanks, an inflow tank 17, a reaction tank 18, and an outflow tank 19, and each of the tanks 17, 18, and 19 is a septic tank. 11, the waste water flowing in from the inlet 14 flows out from the outlet 15 through the inlet tank 17, the reaction tank 18, and the outlet tank 19 in this order. At this time, the lateral width of each of the inflow tank 17, the reaction tank 18, and the outflow tank 19 is 0.15 m, 0.85 m, and 0.15 m. That is, the inflow tank 17, reaction vessel 18 and the respective capacity of the outlet tank 19 is 0.2 m 3, 1.0 m 3, a 0.2 m 3, also passing water is per hour to about 2m 3.

上記オゾンガス発生部１２は、オゾンガスを発生する複数のオゾンガス発生管２０と、反応槽１８の上面に掛渡されて、オゾンガス発生管２０を反応槽１８の上面にて支持する支持板２５とを備えている。
オゾンガス発生管２０は、図３および図４に示すように、例えば石英ガラスなどの波長１８５ｎｍおよび波長２５４ｎｍのそれぞれの紫外光を透過する材質にて形成され、上面が開口した管状のジャケット２１と、このジャケット２１に収容された紫外線ランプ２２とを備え、本実施の形態ではオゾンガス発生管２０が合計５本設けられている。 The ozone gas generation unit 12 includes a plurality of ozone gas generation tubes 20 that generate ozone gas, and a support plate 25 that extends over the upper surface of the reaction tank 18 and supports the ozone gas generation pipe 20 on the upper surface of the reaction tank 18. ing.
As shown in FIGS. 3 and 4, the ozone gas generation tube 20 is formed of a material that transmits ultraviolet light having a wavelength of 185 nm and a wavelength of 254 nm, such as quartz glass, and has a tubular jacket 21 having an open top surface. The ultraviolet lamp 22 accommodated in the jacket 21 is provided, and a total of five ozone gas generation tubes 20 are provided in the present embodiment.

上記ジャケット２１の上端には、複数の螺子孔２４が設けられた円板状の引掛部２３が取付けられており、支持板２５に設けられた図示せぬ開口に上記ジャケット２１が挿入された際に引掛部２３が支持板２５上面に引っ掛かり、ジャケット２１が反応槽１８に進入し、紫外線ランプ２２が反応槽１８内に配置された状態で支持される。紫外線ランプ２２は、波長１８５ｎｍ（第１波長）および２５４ｎｍ（第２波長）の紫外光を放射するランプであり、本実施の形態では、約６５Ｗの低圧水銀ランプが用いられている。紫外線ランプ２２の点灯時にはジャケット２１内部の空気中の酸素に波長１８５ｎｍの紫外光が照射され、当該ジャケット２１内にオゾンガスが発生する。   A disc-shaped hook 23 having a plurality of screw holes 24 is attached to the upper end of the jacket 21. When the jacket 21 is inserted into an opening (not shown) provided in the support plate 25. The hook 23 is hooked on the upper surface of the support plate 25, the jacket 21 enters the reaction tank 18, and the ultraviolet lamp 22 is supported in a state of being disposed in the reaction tank 18. The ultraviolet lamp 22 is a lamp that emits ultraviolet light having a wavelength of 185 nm (first wavelength) and 254 nm (second wavelength). In this embodiment, a low-pressure mercury lamp of about 65 W is used. When the ultraviolet lamp 22 is turned on, oxygen in the air inside the jacket 21 is irradiated with ultraviolet light having a wavelength of 185 nm, and ozone gas is generated in the jacket 21.

上記オゾンガス導入部１３は、エアポンプ２６と、このエアポンプ２６の吸込側に一端が接続され、他端が複数に分岐して各オゾンガス発生管２０に挿入されるオゾン吸込管２７と、エアポンプ２６の吐出側に一端が接続され、他端が浄化槽１１の右側面１１Ｂに設けられた開口２９から浄化槽１１内に導入されるオゾンガス導入管２８とを備えている。さらに、このオゾンガス導入管２８の他端には、流入槽１７、反応槽１８および流出槽１９の各槽にかけて延びる散気管３５が接続される。散気管３５の表面には多数の微小な開口が少なくとも流入槽１７および反応槽１８にかけて形成されている。
したがって、エアポンプ２６の作動に伴って、各オゾンガス発生管２０からオゾン吸込管２７を介してオゾンガスが吸い込まれ、オゾンガス導入管２８を介して散気管３５に導かれ、この散気管３５から流入槽１７および反応槽１８に散気される。 The ozone gas introduction unit 13 has an air pump 26, one end connected to the suction side of the air pump 26, the other end branching into a plurality of branches and inserted into each ozone gas generation pipe 20, and the discharge of the air pump 26. One end is connected to the side, and the other end is provided with an ozone gas introduction pipe 28 introduced into the septic tank 11 from an opening 29 provided on the right side surface 11B of the septic tank 11. Further, the other end of the ozone gas introduction pipe 28 is connected with an air diffusion pipe 35 extending to each of the inflow tank 17, the reaction tank 18 and the outflow tank 19. A large number of minute openings are formed on the surface of the air diffuser 35 over at least the inflow tank 17 and the reaction tank 18.
Accordingly, with the operation of the air pump 26, ozone gas is sucked from each ozone gas generation pipe 20 through the ozone suction pipe 27, led to the diffuser pipe 35 through the ozone gas introduction pipe 28, and from the diffuser pipe 35 to the inflow tank 17. And diffused into the reaction vessel 18.

次いで、本実施の形態の動作について説明する。
前掲図３に示すように、流入口１４から排水が流入すると、流出口１５の形成位置まで浄化槽１１内の水位が上昇し、また、それ以上の排水が流入すると浄化槽１１内で浄化された水が流出口１５から流出する。このとき、排水に含まれるノルマルヘキサン抽出物質は疎水性を有し比重が水よりも軽いため、流入槽１７および反応槽１８の上方に溜まり込んで、それぞれの槽１７、１８に油層４０を形成する。一方、仕切板３０、３１の上縁が流出槽１９の流出口１５の形成位置よりも上方に位置するため、流入槽１７および反応槽１８に蓄積されたノルマルヘキサン抽出物質が仕切板３０、３１を越えて隣の槽に溢れ出すことが防止されている。 Next, the operation of the present embodiment will be described.
As shown in FIG. 3, when drainage flows from the inlet 14, the water level in the septic tank 11 rises to the position where the outlet 15 is formed, and water that is purified in the septic tank 11 when more drainage flows. Flows out from the outlet 15. At this time, the normal hexane extract contained in the wastewater is hydrophobic and has a specific gravity lighter than that of water, so that it accumulates above the inflow tank 17 and the reaction tank 18 to form an oil layer 40 in each of the tanks 17 and 18. To do. On the other hand, since the upper edges of the partition plates 30 and 31 are located above the position where the outflow port 15 of the outflow tank 19 is formed, the normal hexane extractant accumulated in the inflow tank 17 and the reaction tank 18 is separated from the partition plates 30 and 31. Overflowing into the next tank is prevented.

次いで、流入槽１７および反応槽１８における浄化動作について詳述する。紫外線ランプ２２の点灯に伴ってジャケット２１内に発生したオゾンガスがエアポンプ２６により散気管３５に送り出され、流入槽１７および反応槽１８の排水中に散気される。
流入槽１７にあっては、上方に溜まり込んだノルマルヘキサン抽出物質（動植物油）の一部が散気管３５から散気されたオゾンガスにより酸化処理されて親水性を有する物質に分解される。 Next, the purification operation in the inflow tank 17 and the reaction tank 18 will be described in detail. Ozone gas generated in the jacket 21 as the ultraviolet lamp 22 is turned on is sent out to the diffuser pipe 35 by the air pump 26 and diffused into the drainage of the inflow tank 17 and the reaction tank 18.
In the inflow tank 17, a part of the normal hexane extract substance (animal and vegetable oil) accumulated in the upper part is oxidized by ozone gas diffused from the diffuser pipe 35 and decomposed into a hydrophilic substance.

また、流入槽１７において、オゾンガスによる分解量よりもノルマルヘキサン抽出物質の溜まり込み量の方が大きい場合には、図３に示すように、油層４０が流入槽１７の下方まで蓄積する。そして、流入槽１７から反応槽１８への排水の移動に伴って反応槽１８に移動し、この反応槽１８の上方に溜まり込んで油層４０を形成する。そして、この油層４０に対して、散気管３５から散気されたオゾンガスとともに、ヒドロキシラジカルによるノルマルヘキサン抽出物質の促進酸化処理が行われる。   Further, in the inflow tank 17, when the accumulation amount of the normal hexane extract is larger than the decomposition amount by ozone gas, the oil layer 40 accumulates to the lower side of the inflow tank 17 as shown in FIG. 3. And it moves to the reaction tank 18 with the movement of the waste_water | drain from the inflow tank 17 to the reaction tank 18, and accumulates above this reaction tank 18, and forms the oil layer 40. FIG. Then, the oil layer 40 is subjected to the accelerated oxidation treatment of the normal hexane extract material by hydroxy radicals together with the ozone gas diffused from the diffuser pipe 35.

詳述すると、上述の通り、ジャケット２１は紫外線ランプ２２が放射する波長１８５ｎｍおよび波長２５４ｎｍの紫外光を透過する材質にて形成されている。これにより、波長２５４ｎｍの紫外光により、反応槽１８に散気されたオゾンガスが光分解し、その後に水と反応して、オゾンよりも高い酸化作用を有するヒドロキシラジカル（・ＯＨ）が生成される。また、波長１８５ｎｍの紫外光が紫外線ランプ２２から水に照射されることでも水からヒドロキシラジカルが生成される。そして、ノルマルヘキサン抽出物質がオゾンと、波長２５４ｎｍおよび波長１８５ｎｍのそれぞれの紫外光によって生成されたヒドロキシラジカルとによって促進酸化処理されて、親水性を有する物質に分解され、水に溶け込み、流出槽１９に移動し、流出口１５から流出する。   More specifically, as described above, the jacket 21 is formed of a material that transmits ultraviolet light having a wavelength of 185 nm and a wavelength of 254 nm emitted from the ultraviolet lamp 22. Thereby, the ozone gas diffused in the reaction tank 18 is photodegraded by ultraviolet light having a wavelength of 254 nm, and then reacts with water to generate hydroxy radicals (.OH) having an oxidizing action higher than that of ozone. . Further, hydroxyl radicals are also generated from water by irradiating water with ultraviolet light having a wavelength of 185 nm from the ultraviolet lamp 22. Then, the normal hexane extract substance is accelerated and oxidized by ozone and hydroxy radicals generated by ultraviolet light having a wavelength of 254 nm and a wavelength of 185 nm, decomposed into a hydrophilic substance, dissolved in water, and the outflow tank 19. And flows out from the outlet 15.

ここで、発明者らは、本実施の形態の構成において、紫外線ランプ２２の照射の有無によるノルマルヘキサン抽出物質の除去率を実験により求め、次のような結果を得ている。具体的には、紫外線ランプ２２を照射しなかった場合には、約２２〜２４ｍｇ／Ｌのノルマルヘキサン抽出物質が流出口１５から流出する排水に含まれていたのに対して、紫外線ランプ２２を照射した場合には、約１６〜１７ｍｇ／Ｌまで減少し、約２７〜２９％のノルマルヘキサン抽出物質が除去可能である。   Here, in the configuration of the present embodiment, the inventors obtained a normal hexane extraction substance removal rate by the presence or absence of irradiation of the ultraviolet lamp 22 by experiments, and obtained the following results. Specifically, when the ultraviolet lamp 22 is not irradiated, about 22 to 24 mg / L of normal hexane extract is contained in the waste water flowing out from the outlet 15, whereas the ultraviolet lamp 22 is used. When irradiated, it is reduced to about 16-17 mg / L and about 27-29% normal hexane extractables can be removed.

このように本実施の形態によれば、空気中の酸素からオゾンを生成可能であり、かつ、水からヒドロキシラジカルを生成可能な波長１８５ｎｍ、および、オゾンと水とからヒドロキシラジカルを生成可能な波長２５４ｎｍの少なくとも２つの波長の紫外光を反応槽１８内の排水中に放射可能に紫外線ランプ２２を配置するとともに、波長１８５ｎｍの紫外光によって生成されたオゾンを排水中に送り込む構成としたため、紫外線ランプ２２が放射する波長１８５ｎｍおよび波長２５４ｎｍの紫外光によってオゾンと、ヒドロキシラジカルとの両方が生成可能になる。したがって、オゾン生成装置とヒドロキシラジカル生成装置とを別体に設ける必要がないため浄化装置１０のコンパクト化が図られる。
また、紫外線ランプ２２が放射する波長２５４ｎｍおよび波長１８４ｎｍの紫外光によってオゾンと水とから、より効率的にヒドロキシラジカルを生成することが可能であり、排水中に最初からオゾンが存在しない場合に比べ、当該排水中に高濃度にヒドロキシラジカルを供給することが可能となる。
本実施の形態によれば、オゾンとヒドロキシラジカルの促進酸化処理により、排水に含まれるノルマルヘキサン抽出物質が酸化されて親水性を有する物質に分解されて排水中に溶け込むため、汚泥などの廃棄物の発生が抑制される。 Thus, according to this embodiment, ozone can be generated from oxygen in the air, and a wavelength capable of generating hydroxy radicals from water is 185 nm, and a wavelength capable of generating hydroxy radicals from ozone and water. Since the ultraviolet lamp 22 is arranged so that ultraviolet light of at least two wavelengths of 254 nm can be emitted into the waste water in the reaction tank 18, and the ozone generated by the ultraviolet light of wavelength 185 nm is sent into the waste water, the ultraviolet lamp Both ozone and hydroxy radicals can be generated by ultraviolet light having a wavelength of 185 nm and a wavelength of 254 nm emitted by 22. Therefore, since it is not necessary to provide the ozone generator and the hydroxy radical generator separately, the purification device 10 can be made compact.
Moreover, it is possible to generate hydroxyl radicals more efficiently from ozone and water by ultraviolet light having a wavelength of 254 nm and a wavelength of 184 nm emitted from the ultraviolet lamp 22, compared with the case where ozone does not exist in the waste water from the beginning. It becomes possible to supply hydroxy radicals at a high concentration in the waste water.
According to the present embodiment, the normal hexane extract substance contained in the wastewater is oxidized and decomposed into a hydrophilic substance and dissolved in the wastewater by the accelerated oxidation treatment of ozone and hydroxy radicals. Is suppressed.

さらに、本実施の形態によれば、反応槽１８の上方にノルマルヘキサン抽出物質が溜まり込み濃縮されて高濃度となるため、オゾンとヒドロキシラジカルの促進酸化処理による分解効率を高めることが可能となる。
また、従来の微生物を利用した浄化装置や、加圧浮上処理法を利用した浄化装置に比べ、装置構成が簡易であり、さらに、維持コストを抑えることが可能となる。 Furthermore, according to the present embodiment, the normal hexane extract substance accumulates and concentrates above the reaction tank 18 to increase the concentration, so that the decomposition efficiency by the accelerated oxidation treatment of ozone and hydroxy radicals can be increased. .
In addition, the apparatus configuration is simpler than the conventional purification apparatus using microorganisms and the purification apparatus using the pressure levitation treatment method, and the maintenance cost can be reduced.

また、本実施の形態によれば、反応槽１８だけではなく、流入槽１７にもオゾンを送り込む構成としたため、この流入槽１７においても、オゾンによるノルマルヘキサン抽出物質の酸化処理が行われ、ノルマルヘキサン抽出物質の除去率を高めることが可能となる。   In addition, according to the present embodiment, since ozone is sent not only to the reaction tank 18 but also to the inflow tank 17, the inflow tank 17 also oxidizes the normal hexane extract with ozone, so that normal It is possible to increase the removal rate of the hexane extract material.

なお、上述した実施の形態は、あくまでも本発明の一態様を示すものであり、本発明の範囲内で任意に変形可能である。
例えば、上述した実施の形態では、オゾンガスを流入槽１７および反応槽１８に散気管３５により散気する構成としたが、これに限らず、流出槽１９にもオゾンガスを散気する構成としても良い。この構成によれば、流出槽１９でもノルマルヘキサン抽出物質がオゾンにより酸化処理されるため、当該ノルマルヘキサン抽出物質の除去率を、より高めることが可能となる。 Note that the above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified within the scope of the present invention.
For example, in the above-described embodiment, ozone gas is diffused into the inflow tank 17 and the reaction tank 18 by the diffuser pipe 35. However, the present invention is not limited thereto, and ozone gas may be diffused into the outflow tank 19 as well. . According to this configuration, since the normal hexane extract substance is oxidized by ozone in the outflow tank 19 as well, the removal rate of the normal hexane extract substance can be further increased.

また例えば、上述した実施の形態では、ジャケット２１内のオゾンガスを吸い出すポンプとしてエアポンプ２６を例示したが、これに限らず、浄化槽１１内に排水を循環させることでジャケット２１内のオゾンガスを吸い出すラインポンプを用いる構成としても良い。この構成においては、ラインポンプが浄化槽１１内の排水を循環するため、ノルマルヘキサン物質が除去された流出槽１９内の排水を循環する構成とすることが望ましい。   Further, for example, in the above-described embodiment, the air pump 26 is illustrated as a pump that sucks out ozone gas in the jacket 21, but the present invention is not limited to this, and a line pump that sucks out ozone gas in the jacket 21 by circulating wastewater in the septic tank 11. It is good also as a structure using. In this configuration, since the line pump circulates the waste water in the septic tank 11, it is desirable to circulate the waste water in the outflow tank 19 from which the normal hexane substance has been removed.

また上述した浄化装置１０が、ビルやマンションなどの建物２から排出された排水を浄化する場合について例示したが、これに限らず、例えば飲食店の厨房から排出される厨房廃水の浄化にも用いることができる。   Moreover, although illustrated about the case where the purification apparatus 10 mentioned above purifies the waste_water | drain discharged | emitted from buildings 2, such as a building and a condominium, it uses not only for this but the purification | cleaning of the kitchen wastewater discharged | emitted from the kitchen of a restaurant, for example be able to.

本発明の実施の形態に係る浄化システムの構成を示す図である。It is a figure showing composition of a purification system concerning an embodiment of the invention. 本発明の実施の形態に係る浄化装置の構成を示す斜視図である。It is a perspective view which shows the structure of the purification apparatus which concerns on embodiment of this invention. 浄化装置の構成を示す断面図である。It is sectional drawing which shows the structure of the purification apparatus. オゾンガス発生管の構成を示す図である。It is a figure which shows the structure of an ozone gas generation pipe.

符号の説明Explanation of symbols

１ 浄化システム
１０ 浄化装置
１１ 浄化槽
１７ 流入槽
１８ 反応槽
１９ 流出槽
２０ オゾンガス発生管
２１ ジャケット
２２ 紫外線ランプ
２６ エアポンプ
３５ 散気管
３０、３１ 仕切板 DESCRIPTION OF SYMBOLS 1 Purification system 10 Purification apparatus 11 Septic tank 17 Inflow tank 18 Reaction tank 19 Outflow tank 20 Ozone gas generation pipe 21 Jacket 22 Ultraviolet lamp 26 Air pump 35 Aeration pipe 30, 31 Partition plate

Claims (3)

排水が流入する浄化槽と、
空気中の酸素からオゾンを生成可能であり、かつ、水からヒドロキシラジカルを生成可能な第１波長、および、オゾンと水とからヒドロキシラジカルを生成可能な第２波長の少なくとも２つの波長の紫外光を放射する紫外線ランプと、
前記浄化槽内の排水中に前記紫外光を放射可能に前記紫外線ランプを配置する複数のジャケットと、
前記紫外線ランプの紫外光によって前記ジャケット内に発生したオゾンを前記浄化槽内に送り出すポンプとを備え、
前記ジャケットを前記第１波長および前記第２波長の紫外光を透過する材質にて形成して、前記浄化槽内の水に前記第１波長の紫外光が照射され前記ヒドロキシラジカルが生成されると共に、前記浄化槽内に送り出されたオゾンに前記第２波長の紫外光が照射され前記ヒドロキシラジカルが生成されるように構成した
ことを特徴とする浄化装置。 A septic tank into which wastewater flows,
Ultraviolet light having at least two wavelengths: ozone that can generate ozone from oxygen in the air and that can generate hydroxy radicals from water; and a second wavelength that can generate hydroxy radicals from ozone and water An ultraviolet lamp that radiates,
A plurality of jackets for arranging the ultraviolet lamps so that the ultraviolet light can be emitted into the waste water in the septic tank;
A pump for sending ozone generated in the jacket by ultraviolet light of the ultraviolet lamp into the septic tank;
The jacket is formed of a material that transmits ultraviolet light of the first wavelength and the second wavelength, and the hydroxyl radical is generated by irradiating the water in the septic tank with the ultraviolet light of the first wavelength, The purification apparatus, wherein the ozone sent out into the septic tank is irradiated with ultraviolet light of the second wavelength to generate the hydroxy radical. 前記浄化槽に、前記排水が流入する流入槽と、前記排水を浄化するための反応槽と、前記反応槽にて浄化された排水を流出する流出槽とを互いに連通させて設け、
前記紫外線ランプを収容する複数の前記ジャケットを前記反応槽に配設するとともに、
少なくとも前記流入槽および前記反応槽に前記オゾンを送り込むようにした
ことを特徴とする請求項１に記載の浄化装置。 In the septic tank, an inflow tank into which the waste water flows, a reaction tank for purifying the waste water, and an outflow tank from which the waste water purified in the reaction tank flows out are provided in communication with each other,
A plurality of the jackets that house the ultraviolet lamps are disposed in the reaction vessel,
The purification apparatus according to claim 1, wherein the ozone is fed into at least the inflow tank and the reaction tank. 前記浄化槽の内部を２枚の仕切り板により仕切って前記流入槽、前記反応槽および前記流出槽を形成し、前記流入槽に前記排水の流入口を設け、前記流出槽に前記排水を排出する排出口を設けるとともに、前記排出口の形成位置を、前記仕切板の上縁および前記流入口の各々よりも低くした
ことを特徴とする請求項２に記載の浄化装置。
The inside of the septic tank is partitioned by two partition plates to form the inflow tank, the reaction tank, and the outflow tank. The inflow tank is provided with an inlet for the drainage, and the drainage that discharges the drainage into the outflow tank. The purification apparatus according to claim 2, wherein an outlet is provided, and a position where the discharge port is formed is lower than each of an upper edge of the partition plate and the inlet.
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