JPH08197044A - Treatment of waste water and device - Google Patents
Treatment of waste water and deviceInfo
- Publication number
- JPH08197044A JPH08197044A JP7007193A JP719395A JPH08197044A JP H08197044 A JPH08197044 A JP H08197044A JP 7007193 A JP7007193 A JP 7007193A JP 719395 A JP719395 A JP 719395A JP H08197044 A JPH08197044 A JP H08197044A
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- waste water
- water
- rays
- fine powder
- 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- Withdrawn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
- 239000002351 wastewater Substances 0.000 title claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 44
- 238000010894 electron beam technology Methods 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 230000001678 irradiating effect Effects 0.000 claims abstract description 6
- 230000001954 sterilising effect Effects 0.000 claims abstract description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- 230000005251 gamma ray Effects 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910001111 Fine metal Inorganic materials 0.000 description 20
- 230000035699 permeability Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Physical Water Treatments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水、汚泥水、産業廃
水等の種々の廃水の処理方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for treating various wastewater such as sewage, sludge water, industrial wastewater and the like.
【０００２】[0002]
【従来の技術】放射線ビームで廃水殺菌を行う従来の技
術としては、図２に示すように、水流を薄膜流０１１と
し、ここに電子加速装置０５からの電子ビーム０４を直
接照射して、殺菌や有機物の分解を行う方法が研究され
ている。2. Description of the Related Art As a conventional technique for sterilizing wastewater with a radiation beam, as shown in FIG. 2, a thin film stream 011 is used as a water stream, and an electron beam 04 from an electron accelerator 05 is directly applied to this to sterilize the wastewater. Methods for decomposing organic substances and organic substances have been studied.
【０００３】[0003]
【発明が解決しようとする課題】電子ビームを直接水に
照射する場合の問題点は、電子ビームの水中での減衰が
極めて大きいことである。A problem in irradiating water directly with an electron beam is that the electron beam is extremely attenuated in water.
【０００４】即ち、Ｅを電圧（ＭｅＶ）とすると、電子
ビームの最大飛程Ｒ（cm）は、Ｒ＝０．５４２Ｅ−０．
１３３で表わされ、Ｅ＝１．０ＭｅＶのときには、Ｒ＝
０．４０５cmで約４mmである。Ｅを変えた場合の電子ビ
ームの水中における線量と水中の深さの関係を図３に示
す。That is, when E is a voltage (MeV), the maximum range R (cm) of the electron beam is R = 0.542E-0.
133, and when E = 1.0 MeV, R =
0.405 cm is about 4 mm. FIG. 3 shows the relationship between the dose of electron beam in water and the depth in water when E is changed.
【０００５】従って、例えば１ＭｅＶの電子ビームを水
に照射した場合、水の表面からわずか約４mmまでしか電
子ビームが透過せず、その結果、深層部の水は殺菌等の
処理が行われないこととなる。そこで、前記の図２に示
される方法のように、薄膜水流をつくり、その厚さを電
子ビームが到達しうる厚さにする方法が採られることに
なる。しかしながら、前記の図２に示される従来の技術
では、水の薄膜流を形成しているために、大量処理は向
かないという問題点がある。Therefore, for example, when irradiating water with an electron beam of 1 MeV, the electron beam is transmitted only up to about 4 mm from the surface of the water, and as a result, the water in the deep layer is not sterilized. Becomes Therefore, as in the method shown in FIG. 2 described above, a method of forming a thin film water stream and making the thickness thereof a thickness that the electron beam can reach is adopted. However, the conventional technique shown in FIG. 2 has a problem that it is not suitable for large-scale processing because it forms a thin film flow of water.
【０００６】本発明は、以上の問題点を解決することが
できる廃水の処理方法及び装置を提供しようとするもの
である。The present invention is intended to provide a wastewater treatment method and apparatus which can solve the above problems.
【０００７】[0007]
（１）本発明の廃水の処理方法は、金属微粉を混入した
廃水に電子ビームを照射し、該廃水の殺菌を行うことを
特徴とする。 （２）本発明の廃水の処理装置は、金属微粉を混入した
廃水に電子ビームを照射する電子ビーム照射殺菌装置
と、電子ビーム照射後の廃水から前記金属微粉を除去す
るセパレータを有することを特徴とする。 （３）また、本発明の廃水の処理装置は、前記（２）の
廃水の処理装置において、前記セパレータにより除去し
た金属微粉を未処理の廃水に再度混入する金属微粉混合
手段を設けたことを特徴とする。(1) The wastewater treatment method of the present invention is characterized in that wastewater mixed with fine metal powder is irradiated with an electron beam to sterilize the wastewater. (2) The wastewater treatment apparatus of the present invention has an electron beam irradiation sterilizer for irradiating the wastewater mixed with metal fine powder with an electron beam, and a separator for removing the metal fine powder from the wastewater after electron beam irradiation. And (3) Further, the wastewater treatment apparatus of the present invention is the wastewater treatment apparatus of (2) above, further comprising metal fine powder mixing means for remixing the metal fine powder removed by the separator into the untreated wastewater. Characterize.
【０００８】[0008]
【作用】処理すべき廃水に金属微粉を混入させた状態で
電子ビームを当てると、従来の電子ビームだけによる殺
菌のみならず、金属微粉に当たる電子ビームが金属原子
の外殻電子に作用することによってγ線またはｘ線が発
生し、このγ線またはｘ線による殺菌作用が加わること
になる。When the electron beam is applied to the wastewater to be treated with the fine metal powder mixed, not only the conventional electron beam sterilization but also the electron beam hitting the fine metal powder acts on the outer shell electrons of the metal atom. Gamma rays or x rays are generated, and the bactericidal action by the gamma rays or x rays is added.
【０００９】また、γ線またはｘ線は水中透過性が強
い。例えば、γ線の水中における線量Ｉは、Further, γ-rays or x-rays have high permeability in water. For example, the dose I of gamma rays in water is
【００１０】[0010]
【数１】 [Equation 1]
【００１１】で表わされる。ここで、Ｉ0 は照射される
γ線の線量、μは質量減衰係数（単位断面積で単位質量
の水によって光るが減弱される割合、〔cm〕）、ｘは水
中の深さ〔cm〕である。Ｅをγ線の電圧とすると前記μ
は、 μ＝７．０６２Ｅ−２ で表わされ、Ｅ＝１ＭｅＶのγ線においては、水中４mm
の深さで３％しか減衰せず、1/10まで減衰するのには水
中３２６mmの深さを必要とし、電子ビームに比して１０
０倍程度の透過力がある。It is represented by Here, I 0 is a dose of γ-rays to be irradiated, μ is a mass attenuation coefficient (a ratio of radiated by water of a unit mass in a unit cross-sectional area, [cm]), and x is depth in water [cm] Is. If E is the voltage of γ-ray,
Is represented by μ = 7.062E-2, and in the γ-ray of E = 1 MeV, it is 4 mm in water.
Attenuates only 3% at a depth of 1/3, and requires a depth of 326 mm in water to decay to 1/10, which is 10% less than an electron beam.
It has about 0 times the penetrating power.
【００１２】前記本発明（１）においては、金属微粉を
混入した廃水に電子ビームを照射しているので、電子ビ
ームが金属原子の外殻電子に作用して水中透過性が強い
γ線またはｘ線が発生し、水の深層部までこのγ線また
はｘ線により廃水の殺菌作用が行われる。また、電子ビ
ームが金属微粉に当ったときに発生するγ線またはｘ線
は、四方、八方に放射される上に、このγ線またはｘ線
が別の金属微粉に当たると散乱される。従って、γ線ま
たはｘ線が水中に万遍なく行きわたり、透過性が強いこ
とと相まって効果的な殺菌を行うことができる。In the present invention (1), since the wastewater mixed with the fine metal powder is irradiated with the electron beam, the electron beam acts on the outer shell electrons of the metal atom and has a strong permeability in water, that is, γ-rays or x-rays. Rays are generated, and the γ-rays or x-rays sterilize the wastewater to the deep part of the water. The γ-rays or x-rays generated when the electron beam hits the metal fine powder are emitted in all directions and are scattered when the γ-rays or x-rays hit another metal fine powder. Therefore, γ-rays or x-rays are evenly distributed in water, and combined with strong permeability, effective sterilization can be performed.
【００１３】前記（２）の本発明は、電子ビーム照射殺
菌装置によって金属微粉を混入した廃水に電子ビームを
照射しているために、前記のように水中に万遍なくγ線
またはｘ線を行きわたらせて効果的な殺菌が行われ、こ
の殺菌処理された廃水からセパレータで金属微粉を除去
して金属微粉を含まない処理水を得ることができる。In the present invention of the above (2), since wastewater mixed with fine metal powder is irradiated with an electron beam by an electron beam irradiation sterilizer, γ rays or x rays are evenly distributed in water as described above. Effective sterilization is carried out by spreading the metal fine powder from the sterilized wastewater with a separator to obtain treated water containing no metal fine powder.
【００１４】前記（３）の本発明では、前記セパレータ
で除去された金属微粉が未処理の廃水に混入されて有効
に利用される。In the present invention (3), the fine metal powder removed by the separator is mixed with the untreated waste water to be effectively used.
【００１５】なお、本発明で使用される金属微粉として
は、用途、仕様等により適宜のものを使用することがで
きるが、外殻電子が多いタングステン等の重金属を用い
るのが望ましい。The metal fine powder used in the present invention may be appropriately selected depending on the application, specifications, etc., but it is preferable to use a heavy metal such as tungsten having a large number of outer shell electrons.
【００１６】[0016]
【実施例】本発明の一実施例を、図１によって説明す
る。図１（ａ）において、２は供給される未処理の廃水
１にタングステン等の金属微粉８を混入する金属粉混入
器であり、金属微粉８を混入された廃水は、電子加速装
置５で発生する電子ビーム４が照射される電子ビーム照
射殺菌装置３へ導入される。電子ビーム照射殺菌装置３
で電子ビーム４が照射されて処理された廃水は、セパレ
ータ６へ導入され、ここで金属微粉８が除去され処理水
７として排出される。また、水より分離された金属微粉
８は、金属粉混入器２に供給され再度未処理の廃水１に
混入されるようになっている。なお、前記セパレータ６
としては、サイクロン式、重力分離式、フィルタ式等の
ものを用いることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. In FIG. 1 (a), reference numeral 2 denotes a metal powder mixing device for mixing fine metal powder 8 such as tungsten into the untreated waste water 1 to be supplied, and the waste water mixed with the metal fine powder 8 is generated in the electron accelerator 5. It is introduced into the electron beam irradiation sterilizer 3 which is irradiated with the electron beam 4 for irradiation. Electron beam irradiation sterilizer 3
The wastewater that has been treated by being irradiated with the electron beam 4 is introduced into the separator 6, where the fine metal powder 8 is removed and discharged as treated water 7. Further, the fine metal powder 8 separated from water is supplied to the metal powder mixer 2 and mixed again with the untreated wastewater 1. The separator 6
A cyclone type, a gravity separation type, a filter type, or the like can be used as this.
【００１７】本実施例では、金属粉混入器２で金属微粉
８が混入された未処理の廃水に電子ビーム照射殺菌装置
３において電子ビーム４が照射される。金属微粉８に電
子ビーム４が当たると、図１（ｂ）に示すように、電子
ビーム４が金属微粉８の外殻電子に作用して四方、八方
にγ線またはｘ線９が放射され、またこのγ線またはｘ
線は別の金属微粉に当たると矢印１０に示すように散乱
される。In the present embodiment, the untreated wastewater in which the fine metal powder 8 is mixed in the metal powder mixing device 2 is irradiated with the electron beam 4 in the electron beam irradiation sterilizer 3. When the electron beam 4 hits the fine metal powder 8, the electron beam 4 acts on outer shell electrons of the fine metal powder 8 to emit γ-rays or x-rays 9 in four directions, as shown in FIG. Also this γ ray or x
When the line hits another fine metal powder, it is scattered as shown by arrow 10.
【００１８】前記の作用欄で詳述したように、金属微粉
８から放射されるγ線またはｘ線９は水中での透過性が
強く、かつ、これが四方、八方に放射されると共に他の
金属微粉によって散乱されるために、γ線またはｘ線９
は水中の深層の部分まで万遍なく行きわたり、効果的な
殺菌と微生物の殺滅を行うことができる。As described in detail in the above-mentioned action column, the γ-rays or x-rays 9 emitted from the fine metal powder 8 have a high permeability in water, and are emitted in all directions, and at the same time as other metals. Gamma or x-rays due to scattering by fines 9
Can spread evenly to the deep part of the water, and can effectively sterilize and kill microorganisms.
【００１９】以上のように電子ビーム４の照射による処
理を受けた水は、セパレータ６に送られてここで金属微
粉８が除去されて処理水７として排出される。また、セ
パレータ６で水より除去された金属微粉８は、金属粉混
入器２へ送られて再度未処理の廃水１に混入され有効に
利用される。The water that has been treated by the irradiation of the electron beam 4 as described above is sent to the separator 6, where the fine metal powder 8 is removed and discharged as treated water 7. Further, the metal fine powder 8 removed from the water by the separator 6 is sent to the metal powder mixer 2 and mixed again with the untreated waste water 1 to be effectively used.
【００２０】[0020]
【発明の効果】本発明では、金属微粉を混入した廃水に
電子ビームを照射して透過性の強いγ線またはｘ線を発
生させ、かつ、このγ線またはｘ線を金属微粉に当てて
散乱させるようにしているので、以上説明したように、
廃水の深層部までむらなくγ線またはｘ線を行きわたら
せることができ、廃水を効果的に殺菌処理することがで
きる。また、前記のように処理された廃水中の金属微粉
はセパレータで取除かれ、金属微粉を含まない処理水が
得られると共に、金属微粉を再度未処理の廃水に混入す
ることによってその有効利用を図ることができる。According to the present invention, wastewater mixed with fine metal powder is irradiated with an electron beam to generate γ-rays or x-rays having high permeability, and the γ-rays or x-rays are applied to the fine metal powder to scatter them. As I explained above,
Gamma rays or x-rays can be spread evenly to the deep part of the wastewater, and the wastewater can be effectively sterilized. Further, the fine metal powder in the wastewater treated as described above is removed by the separator, and the treated water not containing the fine metal powder is obtained, and the effective use of the fine metal powder is again mixed with the untreated wastewater. Can be planned.
【図１】本発明の一実施例を示し、図１（ａ）はその全
体構成図、図１（ｂ）は電子ビーム照射時のγ線または
ｘ線の発生状態の説明図である。FIG. 1 shows an embodiment of the present invention, FIG. 1 (a) is an overall configuration diagram thereof, and FIG. 1 (b) is an explanatory diagram of a generation state of γ-rays or x-rays during electron beam irradiation.
【図２】従来の電子ビームによる廃水の処理方法の説明
図である。FIG. 2 is an explanatory diagram of a conventional wastewater treatment method using an electron beam.
【図３】図３（ａ）及び図３（ｂ）は電子ビームの線量
と水中の深さの関係を示すグラフである。FIG. 3A and FIG. 3B are graphs showing the relationship between electron beam dose and depth in water.
１ 未処理の廃水 ２ 金属粉混入器 ３ 電子ビーム照射殺菌装置 ４ 電子ビーム ５ 電子加速装置 ６ セパレータ ７ 処理水 ８ 金属微粉 ９ γ線またはｘ線 1 Untreated Wastewater 2 Metal Powder Mixer 3 Electron Beam Irradiation Sterilizer 4 Electron Beam 5 Electron Accelerator 6 Separator 7 Treated Water 8 Metal Fine Powder 9 γ-Rays or X-Rays
Claims (3)
照射し、該廃水の殺菌を行うことを特徴とする廃水の処
理方法。1. A method for treating wastewater, which comprises sterilizing the wastewater by irradiating it with an electron beam.
照射する電子ビーム照射殺菌装置と、電子ビーム照射後
の廃水から前記金属微粉を除去するセパレータとを有す
ることを特徴とする廃水の処理装置。2. An apparatus for treating waste water, comprising: an electron beam irradiation sterilizer for irradiating an electron beam to waste water mixed with metal fine powder; and a separator for removing the metal fine powder from the waste water after electron beam irradiation. .
微粉を未処理の廃水に再度混入する金属微粉混入手段を
設けたことを特徴とする請求項２に記載の廃水の処理装
置。3. The waste water treatment apparatus according to claim 2, further comprising a metal fine powder mixing unit that mixes the metal fine powder removed by the separator into untreated waste water again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7007193A JPH08197044A (en) | 1995-01-20 | 1995-01-20 | Treatment of waste water and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7007193A JPH08197044A (en) | 1995-01-20 | 1995-01-20 | Treatment of waste water and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08197044A true JPH08197044A (en) | 1996-08-06 |
Family
ID=11659207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7007193A Withdrawn JPH08197044A (en) | 1995-01-20 | 1995-01-20 | Treatment of waste water and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08197044A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368837B1 (en) * | 2000-07-03 | 2003-01-24 | 한국전력공사 | Reactor for reclamation of dffluent from sewage treatment facility by irradiation combined with TiO2 |
| KR100399153B1 (en) * | 2000-07-03 | 2003-09-26 | 한국전력공사 | Water treatment system for production of industrial water from secondary effluent by gamma irradiation and TiO2 |
| KR100779757B1 (en) * | 2005-12-21 | 2007-11-28 | 조재영 | Reduction of antibiotics, odor-inducing substances and pathogenic microorganisms in livestock manure by means of irradiation technology and method of manufacturing by-product fertilizer using the same |
| KR100781388B1 (en) * | 2005-12-22 | 2007-11-30 | 조재영 | Manufacturing method of seedling soil using irradiation technology |
| CN103145213A (en) * | 2013-03-20 | 2013-06-12 | 中国科学院高能物理研究所 | Treatment method of furaltadone-containing wastewater |
-
1995
- 1995-01-20 JP JP7007193A patent/JPH08197044A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368837B1 (en) * | 2000-07-03 | 2003-01-24 | 한국전력공사 | Reactor for reclamation of dffluent from sewage treatment facility by irradiation combined with TiO2 |
| KR100399153B1 (en) * | 2000-07-03 | 2003-09-26 | 한국전력공사 | Water treatment system for production of industrial water from secondary effluent by gamma irradiation and TiO2 |
| KR100779757B1 (en) * | 2005-12-21 | 2007-11-28 | 조재영 | Reduction of antibiotics, odor-inducing substances and pathogenic microorganisms in livestock manure by means of irradiation technology and method of manufacturing by-product fertilizer using the same |
| KR100781388B1 (en) * | 2005-12-22 | 2007-11-30 | 조재영 | Manufacturing method of seedling soil using irradiation technology |
| CN103145213A (en) * | 2013-03-20 | 2013-06-12 | 中国科学院高能物理研究所 | Treatment method of furaltadone-containing wastewater |
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