SG178770A1 - Foam recovery device and foam recovery system - Google Patents
Foam recovery device and foam recovery system Download PDFInfo
- Publication number
- SG178770A1 SG178770A1 SG2012009221A SG2012009221A SG178770A1 SG 178770 A1 SG178770 A1 SG 178770A1 SG 2012009221 A SG2012009221 A SG 2012009221A SG 2012009221 A SG2012009221 A SG 2012009221A SG 178770 A1 SG178770 A1 SG 178770A1
- Authority
- SG
- Singapore
- Prior art keywords
- foam
- seawater
- floating
- recovery device
- treatment system
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims abstract description 164
- 238000011084 recovery Methods 0.000 title claims abstract description 65
- 239000013535 sea water Substances 0.000 claims abstract description 115
- 238000007667 floating Methods 0.000 claims abstract description 31
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 238000005188 flotation Methods 0.000 claims abstract description 17
- 230000002745 absorbent Effects 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 6
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Removal Of Floating Material (AREA)
- Physical Water Treatments (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Provided are a foam recovery device for collecting foam floating on the surface of desulfurized used seawater and draining only the foam-free used seawater into the surrounding sea area and a foam recovery system including the foam recovery device. The foam recovery device (20) is installed in a seawater treatment system (1) for draining used seawater discharged from a desulfurization tower of an exhaust gas desulfurizer using seawater as an absorbent and removes foam (4) floating on the surface of used seawater by separating and collecting the foam (4). The foam recovery device (20) has a flotation structure in which the entire device is held floating in the seawater treatment system (1), and the flotation structure includes a foam-scooping portion (23) for removing foam (4) floating on the water surface by separating the foam (4) from the seawater and a concave storage portion (24) for collecting the foam (4) separated and removed by the foam-scooping portion (23).FIGURE 1A
Description
FOAM RECOVERY DEVICE AND FOAM RECOVERY SYSTEM
[0001]
The present invention relates to treatment of effluent from an exhaust gas desulfurizer employed in an electric power plant, such as a coal-fired, crude oil-fired, or heavy oili- fired power plant, and particularly relates to a foam reccvery device and a foam recovery system for removing foam from effluent from an exhaust gas desulfurizer performing desulfurization using a seawater method.
This application is based on Japanese Patent Application
No. 2007-040458, the content of which is incorporated herein by reference.
[0002]
Conventicnally, in an electric power plant using coal, crude cil, or the like as fuel, sulfur oxides (30x), such as sulfur dioxide {30;), are removed from combustion exhaust gas (hereinafter called "boller exhaust gas") discharged from a boiler, and then the boiler exhaust gas is discharged into the atmosphere. Known examples of such desulfurization treatment with an exhaust gas desulfurizer include systems employing a limestone-plaster method, a spray dryer method, or a seawater method.
[0003]
An exhaust gas desulfurizer employing the seawater method (seawater desulfurizer) uses seawater as an absorbent. In this system, for example, seawater and boiler exhaust gas are supplied to the inside of a desulfurization tower (absorption tower) having a substantially cylindrical shape, such as a vertically disposed cylinder, to cause gas~liquid contact in a wet system, thereby removing sulfur oxides using the seawater as an absorbing solution.
As shown in Fig. 2, for example, when the seawater (used seawater) used as an absorbent for desulfurization in the aforementioned desulfurization tower flows in a seawater treatment system (SWTS) 1 to be drained away, it is decarbonated (aerated) by aeration with air bubbles 3 discharged from an aeration nozzle 2 disposed at the bottom of the seawater treatment system 1.
[0004]
When the pH is adjusted by the aforementioned decarbonation, a large amount of foam 4 is produced on the surface of the used seawater flowing in the seawater treatment system 1 due to interaction among the micro-aerated air bubbles 3, components (soot and dust, etc.) in the boiler exhaust gas introduced into seawater in the desulfurization tower, and organic substances contained in the seawater. Not only does this foam 4 tend to remain but it also contains hazardous substances. Therefore, discharging the foam 4 from the seawater treatment system 1 together with seawater : 5 directly to the surrounding sea area is undesirable from the viewpoints of scenery and environmental pollution.
[0005]
An oil recovery device for recovering oil floating on the water surface is a known conventional technology resembling or relating to elimination of fcam on the water surface. This 0il recovery device includes floating means that floats on the water surface and supports the oil recovery device, suction means for sucking the oil, and oil-collecting means that collects oil from an cil-collecting aperture and leads the collected oil to the suction means (for example, refer to
Patent Document 1).
Furthermore, a sludge recovery device that can easily recover paint sludge and the like floating in a recovery tank has also been proposed (for example, refer to Patent Document 23.
Patent Document 1: Japanese Unexamined Patent
Application, Publication No. 2004-351279 (see Fig. 1)
Patent Document 2: Japanese Unexamined Patent
Application, Publication No. Hei 6-29%6911 (see Fig. 1}
Disclosure of Invention 10006]
The above-described desulfurized used seawater flows in the seawater treatment system 1 and is drained into the surrounding sea area, and the foam 4 floating on the water surface causes scenery destruction and environmental pollution. Accordingly, in order to solve these problems, a device for appropriately removing the foam 4 on the water surface by separating the foam 4 from seawater and collecting it is necessary. That is, there are demands for development of a foam recovery device that can appropriately remove the foam 4 floating on the surface of desulfurized used seawater by separating and collecting the foam 4 from the desulfurized used seawater for draining only the used seawater, that is, not containing foam 4, into the surrounding sea area and also for development of a foam recovery system provided with such a foam recovery device.
The present invention has been made under these circumstances, and an object of the present invention is to provide a foam recovery device that can collect foam floating on the surface cof desulfurized used seawater and drain only the foam-free used seawater into the surrounding sea area, as well as a foam recovery system including such a foam recovery device.
The present invention employs the following solutions for solving the aforementioned problems.
A first aspect of the present invention provides a foam recovery device installed in a seawater treatment system for 5 draining used seawater discharged from a desulfurization tower of an exhaust gas desulfurizer using seawater as an absorbent and configured to remove foam floating on the surface of used seawater by separating and collecting the foam.
The foam recovery device has a flotation structure in 1¢ which the entire device is held flcating in the seawater treatment system; and the flotation structure includes a foam- scooping portion configured to remove foam floating on the surface of seawater by separating the foam from the seawater and a concave storage portion configured to cellect the foam is separated and removed by the foam-scooping portion.
[0008]
In such a foam recovery device, the entire device is held floating in a seawater treatment system by the flotation structure that includes the foam-scooping portion for removing foam floating on the water surface by separating the foam from : seawater and the concave storage portion for collecting the foam separated and removed by the foam~scooping portion.
Consequently, the foam-scooping portion is always held at approximately the same height relative to the water surface by & buoyant force even if the water level of the used seawater
- flowing in the seawater treatment system changes. Therefore, foam can be reliably separated from used seawater by holding the foam-scooping portion at the boundary position between the foam and the water surface and is thereby collected in the concave storage portion. [C009]
A second aspect of the present invention provides a foam recovery system including a foam recovery device installed in a seawater treatment system for draining used seawater discharged from a desulfurization tower of an exhaust gas : desulfurizer using seawater as an absorbent and configured to remove foam floating on the surface of used seawater by separating and collecting the foam.
The foam recovery device has a flotation structure in which the entire device is held floating in the seawater treatment system, and the flotation structure includes a foam-— : scooping portion configured to remove foam floating on the surface of seawater by separating the foam from the seawater and a concave storage portion configured to collect the foam separated and removed by the foam-scooping portion; a foam treatment device cenfigured to dehydrate and dry the collected foam; and a suction and conveying device configured to suck the collected foam from the concave storage portion and convey the fcam to the foam treatment device. z5 (0010)
Such a foam recovery system has a configuration including the foam recovery device having the flotation structure in which the entire device is held floating in the seawater treatment system, where the flotation structure has the foam- scooping portion for removing foam floating on the water surface by separating the foam from seawater and the concave storage portion for collecting the foam separated and removed by the foam-scooping portion; the foam treatment device for dehydrating and drying the collected foam by the foam-scooping portion; and the suction and conveying device for sucking the collected foam from the concave storage portion of the foam recovery device and conveying the foam to the foam treatment device. Consequently, foam can be reliably separated from the used seawater with the foam-scooping portion by holding the foam-scooping pertion at the boundary position between the foam and the water surface by a buoyant force, and is thereby collected in the concave storage portion. The foam collected in the concave storage portion is conveyed to the foam treatment device by the suction and conveying device and is then dehydrated and dried tc be separated into a foam component and a seawater component.
[0011]
According to the present invention above-described, foam is appropriately removed from the surface of the used seawater, which is discharged from a desulfurization tower and then flows in a seawater treatment system to be drained, by separating and collecting the foam from the used seawater.
Therefore, only used seawater, free of foam, is drained into the surrounding sea area. Consequently, the problems of : 5 scenery destruction and environmental pollution due to foam floating on the sea surface can be avoided.
(0012) {Fig. 1A] Fig. 1A is a diagram illustrating a foam recovery device and a foam recovery system according to an embodiment of the present invention, showing a configuration in which land-based facilities are illustrated, as well as a cross-section of the foam recovery device; [Fig. 1B) Fig. 1B is a plan view of the foam recovery device of Fig. 1A, illustrating a foam recovery device and a foam recovery system according to an embodiment of the present invention; and [Fig. 2] Fig. 2 is a side view illustrating a conventional device.
Explanation of Reference Signs:
[0013] 1: seawater treatment system 4: foam lo 10: foam recovery system 13: conveying device 14: foam treatment device 20: foam recovery device 21: front float 22: back float 23: feoam-scooping portion 23a: end 24: concave storage portion
[0014]
An embodiment of a foam recovery device and a foam recovery system according to the present invention will now be described with reference to the drawings.
A foam recovery system 10 shown in Figs. 1A and 1B, which is installed in a seawater treatment system (SWTS) 1 for draining used seawater, includes a foam recovery device 20 that removes foam 4 floating on the surface of used seawater by separating the foam 4 from the used seawater and collecting it. This foam recovery device 20 has a flotation structure in which the entire device is held floating in the seawater treatment system 1 by a buoyant force. In the configuration shown in the drawings, a front float 21 at the upstream side and a back float 22 at the downstream side are disposed in series in the flow direction (shown by arrows F in the drawings) of the used seawater flowing in the seawater treatment system 1. The aforementioned used seawater is, for example, desulfurized used seawater discharged from a desulfurization tower of an exhaust gas desulfurizer (seawater desulfurizer) that uses seawater as an absorbent.
[6015]
In the flotation structure of the foam recovery device 20, a feam-scooping portion 23 for removing the foam 4 floating on the seawater surface by separating the foam 4 from the seawater is provided on the front float 21, and a concave storage portion 24 for collecting the foam 4 separated and removed with the foam-scooping portion 23 is provided between the front float 21 and the back float 22.
The foam recovery device 20 is a floating body having a width dimension approximately the same as the width W of the seawater treatment system 1 and is fixed so that the foam recovery device 20 cannot be forced to move from a predetermined position in the seawater treatment system 1 by the flow of water, while being able to move vertically by a puoyant force. That is, the foam recovery device 20 with the fiotation structure can move in the vertical direction according toe a change in the water level in the seawater treatment system 1, but is supported at a predetermined position so as not tc move in the flow direction of used seawater flowing in the seawater treatment system 1.
[0016]
The foam-scooping portion 23 is disposed at the upstream side of the foam recovery device 20 in the flow direction of used seawater. This foam-sccoping portion 23 is a section having an end 23a with a sharp-edged cross-section extending over approximately the entire width of the fictation structure. The position of the end 23a in the height direction is approximately the same as the level of the seawater surface or slightly lower than the level of the seawater surface, that is, under the water.
The concave storage portion 24 is a space for storing foam and is rectangular in plan view, corresponding to the shape of the seawater treatment system 1. This concave storage portion 24 is a concave space with an open top face in which the front, back, right, and left wall faces are formed by the wall face 2la of the front float 21, the wall face 22a of the back float 22, and a pair of side walls 24a and 24b connecting the front float 21 and the back float 22, respectively, and the bottom face is closed off by connecting the lower portions of these front, back, right, and left wall faces.
[0017]
The foam recovery system 10 includes a conveying passage composed of piping 11 having cne end in the concave storage portion 24 and a flexible tube 12 interposed at an appropriate position of the piping 11. The conveying passage conveys the foam 4, collected in the concave storage portion 24 of the foam recovery device 20 structured as described above, for treatment. The other end of the piping 11 forming the conveying passage is connected to a suction and conveying device 13, and a foam treatment device 14 is disposed at the discharge side of the suction and conveying device 13, [00183
The suction and conveying device 13 described above may be a pump such as an ejector pump or a vacuum pump.
The foam treatment device 14 may use a centrifuge for dehydrating collected foam 4 to separate it into a foam component and seawater. The separated seawater is drained into the surrounding sea area, and the foam component is dried into a solid. This sclid is reused in the facilities or : buried underground.
That is, in addition to the foam recovery device 20 disposed in the seawater treatment system 1 and having a flotation structure (water-base facilities), the foam recovery system 10 also includes the ground-based facilities having the suction and conveying device 13 and the foam treatment device 14. The suction and conveying device 13 sucks the foam 4 collected in the concave storage portion 24 and conveys it to the foam treatment device 14, and the foam treatment device 14 dehydrates and dries the foam 4. (0019)
Next, the functions of the foam recovery device 20 and the foam recovery system 10, having the structures described above, will be described together with a treatment process for collecting foam.
Desulfurized used seawater drained from a desulfurization tower flows in the seawater treatment system 1 in the direction shown by the arrow F. The foam 4 floats on the surface of the used seawater flowing in the seawater treatment system 1. When the foam 4 reaches the foam recovery device 20, the end 23a of the foam-scooping portion 23 enters the boundary portion between the used seawater and the foam 4 to separate them. The positional relation between the foam- scooping portion 23 and the surface of the used seawabler is maintained approximately constant by the flotation structure of the foam recovery device 20, even if the water level changes.
[6020]
As a result, the used seawater is led along the bottom face of the front float 21 and thus flows under the foam recovery device 20. On the other hand, the foam 4 flows on the top face of the foam-scooping portion 23 and then falls into and is collected in the concave storage portion 24 disposed at the downstream side of the foam-scooping portion
The foam 4 collected in the concave storage portion 24 is sucked by driving the suction and conveying device 13 and is conveyed to the foam treatment device 14 through the piping 11 and the flexible tube 12, The flexible tube 12 allows the piping 11 to move according to the ventional moTenInt of the foam recovery device 20 due to a change in the water level.
[0021]
The foam 4 thus conveyed to the foam treatment device 14 is separated into seawater and a foam component. The separated seawater, free of foam, is drained into the surrounding sea area, and the separated foam component is dried into a solid and reused in the facilities or buried underground at an appropriate place.
Therefore, the foam 4 can be appropriately removed by geparating and collecting it from the surface of the used seawater drained from a desulfurization tower and flowing in the seawater treatment system 1 for draining the used seawater. Accordingly, only the used seawater, that is, not centaining the foam 4, can be drained into the surrounding sea area, and the problems of scenery destruction and environmental pollution caused by foam floating on the sea surface can be avoided. [0GZ22)
The foam recovery device 20 and the foam recovery system
10 described above may be provided for each desulfurization tower that drains used seawater. Alternatively, a single seawater treatment system 1 may receive used seawater drained from a plurality of desulfurization towers.
The present invention is not limited to the aforementioned embodiments and can be variously modified within the scope of the present invention.
Claims (2)
1. A foam recovery device installed in a seawater treatment system for draining used seawater discharged from a : 5 desulfurization tower of an exhaust gas desulfurizer using seawater as an absorbent and configured to remove foam floating on the surface of used seawater by separating and cellecting the foam, wherein the foam recovery device has a flotation structure in which the entire device is held floating in the seawater treatment system; and the flotation structure includes a foam~scooping portion configured to remove foam floating on the surface of seawater by separating the feocam from the seawater and a concave storage portion configured to collect the foam separated and removed by the foam-scooping portion.
2. A foam recovery system comprising: a foam recovery device installed in a seawater treatment system for draining used seawater discharged from a desulfurization tower of an exhaust gas desulfurizer using seawater as an absorbent and configured to remove foam floating on the surface of used seawater by separating and collecting the foam, wherein the foam recovery device has a flotation structure in which the entire device is held floating in the seawater treatment system, and the flotation structure includes a foam- scooping portion configured to remove foam floating on the surface of seawater by separating the foam from the seawater and a concave storage portion configured to collect the foam separated and removed by the foam-scooping portion; a foam treatment device configured to dehydrate and dry the collected foam; and a suction and conveying device configured to suck the collected foam from the concave storage portion and convey the foam to the foam treatment device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007040458A JP5324747B2 (en) | 2007-02-21 | 2007-02-21 | Foam recovery device and foam recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG178770A1 true SG178770A1 (en) | 2012-03-29 |
Family
ID=39721137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2012009221A SG178770A1 (en) | 2007-02-21 | 2008-02-20 | Foam recovery device and foam recovery system |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5324747B2 (en) |
| EG (1) | EG25417A (en) |
| MY (1) | MY151740A (en) |
| SG (1) | SG178770A1 (en) |
| TW (1) | TW200848149A (en) |
| WO (1) | WO2008105302A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016160682A1 (en) * | 2015-03-31 | 2016-10-06 | Alstom Technology Ltd | Foam intercept system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5754877B2 (en) * | 2009-03-31 | 2015-07-29 | 三菱日立パワーシステムズ株式会社 | Oxidation tank, seawater treatment device and seawater desulfurization system |
| JP5595019B2 (en) * | 2009-11-30 | 2014-09-24 | 三菱重工業株式会社 | Foam treatment device |
| MY192539A (en) * | 2011-09-20 | 2022-08-26 | Tsukishima Kikai Co | Waste water treatment apparatus for flue gas desulfurization facility |
| US20150321123A1 (en) * | 2014-05-08 | 2015-11-12 | Alstom Technology Ltd | Antifoam device and method of use for seawater foam control |
| CN110317642B (en) * | 2019-07-05 | 2021-05-25 | 宁波科新化工工程技术有限公司 | Extraction process of desulfurization regenerated sulfur foam |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144863A (en) * | 1976-05-28 | 1977-12-02 | Mitsubishi Rayon Co Ltd | Collecting apparatus for suspended matters on water surface |
| JPS60104289U (en) * | 1983-12-16 | 1985-07-16 | 石川島播磨重工業株式会社 | Scum collection device |
| JPH0291193A (en) * | 1988-09-28 | 1990-03-30 | Nippon Steel Corp | Method for prevention of clogging of coke oven gas desulfurizer |
| JP3408571B2 (en) * | 1993-02-24 | 2003-05-19 | 千代田化工建設株式会社 | Wet flue gas treatment method and wet flue gas treatment device |
| JP2652613B2 (en) * | 1993-11-02 | 1997-09-10 | 一豊 杉原 | Purification device |
| JP3204363B2 (en) * | 1995-12-14 | 2001-09-04 | 株式会社石垣 | Liquid suspended matter removal device |
| JP3968991B2 (en) * | 2000-12-04 | 2007-08-29 | 株式会社日立プラントテクノロジー | Scum remover |
| JP2002321000A (en) * | 2001-04-26 | 2002-11-05 | Asahi Tec Corp | Method for treating scum and device therefor |
-
2007
- 2007-02-21 JP JP2007040458A patent/JP5324747B2/en active Active
-
2008
- 2008-02-20 SG SG2012009221A patent/SG178770A1/en unknown
- 2008-02-20 TW TW97105922A patent/TW200848149A/en not_active IP Right Cessation
- 2008-02-20 MY MYPI20092680 patent/MY151740A/en unknown
- 2008-02-20 WO PCT/JP2008/052899 patent/WO2008105302A1/en active Application Filing
-
2009
- 2009-06-29 EG EG2009061013A patent/EG25417A/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016160682A1 (en) * | 2015-03-31 | 2016-10-06 | Alstom Technology Ltd | Foam intercept system |
| US9771279B2 (en) | 2015-03-31 | 2017-09-26 | General Electric Technology Gmbh | Foam intercept system |
Also Published As
| Publication number | Publication date |
|---|---|
| MY151740A (en) | 2014-06-30 |
| EG25417A (en) | 2012-01-02 |
| TW200848149A (en) | 2008-12-16 |
| JP2008200620A (en) | 2008-09-04 |
| TWI342794B (en) | 2011-06-01 |
| JP5324747B2 (en) | 2013-10-23 |
| WO2008105302A1 (en) | 2008-09-04 |
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