JPH11151424A - Waste gas treating device for boiler - Google Patents

Waste gas treating device for boiler

Info

Publication number
JPH11151424A
JPH11151424A JP9318318A JP31831897A JPH11151424A JP H11151424 A JPH11151424 A JP H11151424A JP 9318318 A JP9318318 A JP 9318318A JP 31831897 A JP31831897 A JP 31831897A JP H11151424 A JPH11151424 A JP H11151424A
Authority
JP
Japan
Prior art keywords
ammonia
desulfurization
boiler
waste water
exhaust gas
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.)
Pending
Application number
JP9318318A
Other languages
Japanese (ja)
Inventor
Kenichi Tokumitsu
賢一 徳光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP9318318A priority Critical patent/JPH11151424A/en
Publication of JPH11151424A publication Critical patent/JPH11151424A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

PROBLEM TO BE SOLVED: To decrease the volume of a waste water discharging section and to reduce the use of ammonia by providing a vaporizer for vaporizing ammonia contained in a desulfurization waste water fed to the waste water discharging section from a desulfurization apparatus and re-injecting to the upstream side of an electric dust collector as ammonia gas. SOLUTION: The waste gas discharged from the boiler 1 is successively passed through a denitrification equipment 2, an air preheater 3, the electric dust collector 4 and the desulfurization apparatus 5 and discharged from a chimney stack 6. When the waste gas discharged from the boiler 1 contains SO3 , SO3 is converted to ammonium sulfate to be collected with the smoke and soot and removed by injecting ammonia to the upstream side of the electric dust collector 4. In such a case, a part of the desulfurization waste water is introduced into the vaporizer 8 and heated by an auxiliary steam to vaporize ammonia contained in the desulfurization waste water. The vaporized ammonia is re-injected to the upstream side of the electric dust collector 4. The remaining desulfurization waste water is biologically treated in the waste water discharging section 7 to be denitrificated.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ボイラの排ガス処
理設備に関するものである。
The present invention relates to a boiler exhaust gas treatment facility.

【0002】[0002]

【従来の技術】一般に、図2に示される如く、ボイラ1
の下流側には、該ボイラ1から排出される排ガス中に含
まれる窒素酸化物(NOx)を除去するための脱硝装置
2と、ボイラ1へ供給される燃焼用空気(図示せず)を
予熱するための空気予熱器3と、前記脱硝装置2で窒素
酸化物が除去された排ガス中に含まれる煤塵を除去する
ための電気集塵機4と、該電気集塵機4で煤塵が除去さ
れた排ガス中に含まれる硫黄酸化物(主にSO2)をス
プレー洗浄等により除去するための脱硫装置5と、煙突
6とが設けられており、前記ボイラ1内において燃料を
燃焼させることによって発生した排ガスは、脱硝装置2
において窒素酸化物が除去され、空気予熱器3において
ボイラ1へ供給される燃焼用空気と熱交換を行った後、
電気集塵機4において煤塵が除去され、更に脱硫装置5
においてスプレー洗浄等によりSO2等の硫黄酸化物が
除去され、煙突6から大気へ放出されるようになってい
る。
2. Description of the Related Art Generally, as shown in FIG.
Downstream of the boiler 1, a denitration device 2 for removing nitrogen oxides (NOx) contained in exhaust gas discharged from the boiler 1 and a combustion air (not shown) supplied to the boiler 1 are preheated. An air preheater 3 for removing dust, an electric precipitator 4 for removing dust contained in the exhaust gas from which nitrogen oxides have been removed by the denitration device 2, and an exhaust gas from which the dust has been removed by the electric dust collector 4. A desulfurization device 5 for removing contained sulfur oxides (mainly SO 2 ) by spray cleaning or the like and a chimney 6 are provided, and exhaust gas generated by burning fuel in the boiler 1 is: Denitration equipment 2
After the nitrogen oxides are removed in the above, heat exchange is performed with the combustion air supplied to the boiler 1 in the air preheater 3,
The dust is removed in the electric precipitator 4 and the desulfurizer 5
, Sulfur oxides such as SO 2 are removed by spray cleaning or the like, and are discharged from the chimney 6 to the atmosphere.

【0003】前記ボイラ1において高硫黄分含有炭或い
はオリマルジョン・アスファルト等の高硫黄分含有燃料
が使用される場合、その排ガス中には、SO2と共にか
なりの量のSO3が同伴されるが、SO3のミストはきわ
めて特殊な性質を有し、脱硫装置5のようなスプレー洗
浄を行ったとしても、充分に吸収除去できず、煙突6か
ら紫煙となって排出されてしまうこととなる。
When a high sulfur content coal such as high sulfur content coal or orimulsion asphalt is used in the boiler 1, a considerable amount of SO 3 is entrained in the exhaust gas together with SO 2 . The mist of SO 3 has a very special property, and cannot be sufficiently absorbed and removed even if spray-cleaning is performed as in the desulfurization apparatus 5, so that the mist is discharged from the chimney 6 as purple smoke.

【0004】このため、前記電気集塵機4の上流側にア
ンモニア(NH3)を注入することにより、排ガス中に
含まれるSO3を電気集塵機4において煤塵と一緒に捕
集して除去するようになっている。
[0004] Therefore, by injecting ammonia (NH 3 ) into the upstream side of the electric dust collector 4, SO 3 contained in the exhaust gas is collected and removed together with the dust in the electric dust collector 4. ing.

【0005】ここで、前記電気集塵機4の上流側には、
理論的にはSO3のモル比の二倍のアンモニアを注入す
ればよいのであるが、この場合、酸性硫安(NH4HS
4)が生成されてしまい、電気集塵機4の電極が腐食
する等の不具合が発生するため、アンモニアは理論比よ
り過剰に注入し、酸性硫安ではなく硫安((NH42
4)が生成されるようにして、電気集塵機4の電極の
腐食等を防止するようにしている。
Here, on the upstream side of the electric dust collector 4,
Theoretically SOThreeAmmonia at twice the molar ratio of
In this case, an acidic ammonium sulfate (NHFourHS
OFour) Is generated, and the electrodes of the electrostatic precipitator 4 are corroded.
Ammonia, the theoretical ratio
And excess ammonium sulfate ((NHFour)TwoS
O Four) Is generated, and the electrodes of the electrostatic precipitator 4 are
Corrosion is prevented.

【0006】一方、前記アンモニアを理論比より過剰に
注入した場合、未反応のアンモニアが脱硫装置5へ導入
される排ガス中に含まれることとなり、該脱硫装置5に
おいてスプレーされた吸収液に前記未反応のアンモニア
が溶け、脱硫装置5から排出される脱硫排水中に窒素分
が多く含まれ、排水の水質基準を上回ってしまうため、
前記脱硫装置5から排出される脱硫排水については、排
水処理装置7において硝化菌等を用いた生物処理により
脱窒が行われると共に、COD(化学的酸素要求量)で
表わされる還元性物質が高分子材料からなる吸着樹脂に
より吸着された後、清浄化された処理水として海等へ排
出されるようになっている。
On the other hand, if the ammonia is injected in excess of the stoichiometric ratio, unreacted ammonia will be contained in the exhaust gas introduced into the desulfurization unit 5, and the unreacted ammonia will be added to the absorbent sprayed in the desulfurization unit 5. Since the ammonia of the reaction dissolves and the desulfurization effluent discharged from the desulfurization unit 5 contains a large amount of nitrogen and exceeds the water quality standard of the effluent,
The desulfurization effluent discharged from the desulfurization unit 5 is subjected to denitrification by biological treatment using nitrifying bacteria or the like in a wastewater treatment unit 7 and has a high content of reducing substances represented by COD (chemical oxygen demand). After being adsorbed by an adsorption resin made of a molecular material, the water is discharged to the sea or the like as purified treated water.

【0007】[0007]

【発明が解決しようとする課題】しかしながら、前述の
如く、未反応のアンモニアが溶けて窒素分が多く含まれ
た脱硫排水を全量排水処理装置7へ送り込み、硝化菌等
を用いた生物処理により脱硫排水の脱窒を行うのでは、
排水処理装置7の容量が大きくなり、設備費の増加につ
ながると共に、脱窒のための各種薬品等の使用量が増
え、運転費の増加にもつながるという欠点を有してい
た。
However, as described above, desulfurization wastewater containing unreacted ammonia dissolved and containing a large amount of nitrogen is sent to the wastewater treatment apparatus 7 and desulfurized by biological treatment using nitrifying bacteria or the like. In denitrification of wastewater,
The capacity of the wastewater treatment apparatus 7 is increased, leading to an increase in equipment costs, and also an increase in the use of various chemicals and the like for denitrification, leading to an increase in operating costs.

【0008】又、SO3を硫安として捕集するために、
過剰なアンモニアを注入しなければならず、アンモニア
の使用量も増えるため、こうした点からも運転費が更に
増加してしまうという不具合があった。
In order to collect SO 3 as ammonium sulfate,
Since excessive ammonia must be injected and the amount of ammonia used increases, there is a problem that the operating cost is further increased from this point.

【0009】本発明は、斯かる実情に鑑み、排水処理装
置の容量を小さくすることができ、且つ脱窒のための各
種薬品等の使用量並びにアンモニアの使用量を低減する
ことができ、設備費と運転費の削減を図り得るボイラの
排ガス処理設備を提供しようとするものである。
In view of the above, the present invention can reduce the capacity of a wastewater treatment apparatus, reduce the amount of various chemicals and the like used for denitrification, and reduce the amount of ammonia used. It is an object of the present invention to provide a boiler exhaust gas treatment facility capable of reducing costs and operating costs.

【0010】[0010]

【課題を解決するための手段】本発明は、ボイラから排
出される排ガス中に含まれる煤塵を除去するための電気
集塵機と、該電気集塵機で煤塵が除去された排ガス中に
含まれる硫黄酸化物を除去するための脱硫装置と、該脱
硫装置から排出される脱硫排水を処理するための排水処
理装置とを備え、前記電気集塵機の上流側に排ガス中の
SO3を除去するためにアンモニアを注入するようにし
たボイラの排ガス処理設備において、脱硫装置から排水
処理装置へ送られる脱硫排水の一部が導入され、且つ該
脱硫排水中に含まれるアンモニアを気化させアンモニア
ガスとして電気集塵機の上流側に再注入する気化器を備
えたことを特徴とするボイラの排ガス処理設備にかかる
ものである。
SUMMARY OF THE INVENTION The present invention provides an electric precipitator for removing dust contained in exhaust gas discharged from a boiler, and a sulfur oxide contained in exhaust gas from which dust is removed by the electric dust collector. a desulfurization apparatus for removing, and a waste water treatment apparatus for treating the desulfurization waste water discharged from the desulfurization apparatus, inject ammonia to remove SO 3 in the exhaust gas on the upstream side of the electrostatic precipitator In the exhaust gas treatment equipment of the boiler, a part of the desulfurization effluent sent from the desulfurization device to the wastewater treatment device is introduced, and ammonia contained in the desulfurization effluent is vaporized to form an ammonia gas upstream of the electric dust collector. The present invention relates to a boiler exhaust gas treatment facility provided with a vaporizer for re-injection.

【0011】上記手段によれば、以下のような作用が得
られる。
According to the above means, the following effects can be obtained.

【0012】ボイラ内において燃料を燃焼させることに
よって発生した排ガスは、電気集塵機において煤塵が除
去され、更に脱硫装置においてSO2等の硫黄酸化物が
除去されるが、前記ボイラから排出される排ガス中にS
3が含まれている場合、前記電気集塵機の上流側には
アンモニアが注入され、排ガス中に含まれるSO3が硫
安として電気集塵機において煤塵と一緒に捕集されて除
去される。
Exhaust gas generated by burning fuel in the boiler is subjected to dust removal in an electric precipitator and sulfur oxides such as SO 2 in a desulfurization device. To S
When O 3 is contained, ammonia is injected into the upstream side of the electric dust collector, and SO 3 contained in the exhaust gas is collected and removed together with dust in the electric dust collector as ammonium sulfate.

【0013】ここで、前記脱硫装置から排出される脱硫
排水には、未反応のアンモニアが溶けて窒素分が多く含
まれることになるが、前記脱硫排水の一部は、気化器へ
導入され、該気化器において脱硫排水中に含まれるアン
モニアが気化されアンモニアガスとして電気集塵機の上
流側に再注入される一方、残りの脱硫排水は、従来と同
様、排水処理装置において脱窒等の処理が行われ、清浄
化された処理水として海等へ排出される。
Here, the desulfurization effluent discharged from the desulfurization unit contains a large amount of nitrogen because unreacted ammonia is dissolved, and a part of the desulfurization effluent is introduced into a vaporizer. Ammonia contained in the desulfurization effluent is vaporized in the vaporizer and re-injected as ammonia gas into the upstream side of the electrostatic precipitator, while the remaining desulfurization effluent is subjected to treatment such as denitrification in a wastewater treatment device as in the prior art. It is discharged to the sea etc. as purified treated water.

【0014】この結果、未反応のアンモニアが溶けて窒
素分が多く含まれた脱硫排水を全量排水処理装置へ送り
込まずに済むため、排水処理装置の容量を大きくする必
要がなくなり、設備費の削減につながると共に、脱窒の
ための各種薬品等の使用量が減り、運転費の削減にもつ
ながり、又、未反応のアンモニアを回収して再使用する
ことが可能となり、アンモニアの使用量も減るため、運
転費が更に削減されることとなる。
[0014] As a result, the desulfurization effluent containing unreacted ammonia dissolved therein and containing a large amount of nitrogen does not need to be sent to the wastewater treatment apparatus in its entirety. Therefore, it is not necessary to increase the capacity of the wastewater treatment apparatus, thereby reducing equipment costs. In addition, the use of various chemicals for denitrification is reduced, leading to a reduction in operating costs. In addition, it is possible to recover and reuse unreacted ammonia, thereby reducing the amount of ammonia used. Therefore, the operating cost is further reduced.

【0015】[0015]

【発明の実施の形態】以下、本発明の実施の形態を図示
例と共に説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0016】図1は本発明を実施する形態の一例であっ
て、図中、図2と同一の符号を付した部分は同一物を表
わしており、基本的な構成は図2に示す従来のものと同
様であるが、本図示例の特徴とするところは、図1に示
す如く、脱硫装置5から排水処理装置7へ送られる脱硫
排水の一部が導入され、且つ該脱硫排水中に含まれるア
ンモニアを気化させアンモニアガスとして電気集塵機4
の上流側に再注入する気化器8を備えた点にある。
FIG. 1 is an example of an embodiment of the present invention. In the figure, the portions denoted by the same reference numerals as those in FIG. 2 represent the same components, and the basic configuration is the same as that of the conventional device shown in FIG. As shown in FIG. 1, a part of the desulfurization effluent sent from the desulfurization unit 5 to the wastewater treatment unit 7 is introduced and included in the desulfurization effluent. Ammonia that is vaporized and converted into ammonia gas
Is provided with a vaporizer 8 for re-injecting the gas into the upstream side.

【0017】前記気化器8は、補助蒸気により前記脱硫
排水の一部を加熱してアンモニアを気化させるようにな
っており、ドレンについては適宜外部へ排出するように
なっている。
The vaporizer 8 heats a part of the desulfurization effluent by auxiliary steam to vaporize ammonia, and drains the waste to the outside as appropriate.

【0018】次に、上記図示例の作動を説明する。Next, the operation of the illustrated example will be described.

【0019】ボイラ1内において燃料を燃焼させること
によって発生した排ガスは、脱硝装置2において窒素酸
化物が除去され、空気予熱器3においてボイラ1へ供給
される燃焼用空気と熱交換を行った後、電気集塵機4に
おいて煤塵が除去され、更に脱硫装置5においてスプレ
ー洗浄等によりSO2等の硫黄酸化物が除去され、煙突
6から大気へ放出されるが、前記ボイラ1から排出され
る排ガス中にSO3が含まれている場合、前記電気集塵
機4の上流側にはアンモニア(NH3)が注入され、排
ガス中に含まれるSO3が硫安として電気集塵機4にお
いて煤塵と一緒に捕集されて除去される。
Exhaust gas generated by burning fuel in the boiler 1 is subjected to removal of nitrogen oxides in a denitration device 2 and heat exchange with combustion air supplied to the boiler 1 in an air preheater 3. The dust is removed in the electric precipitator 4, and sulfur oxides such as SO 2 are removed in the desulfurization device 5 by spray cleaning or the like, and released into the atmosphere from the chimney 6. When SO 3 is contained, ammonia (NH 3 ) is injected into the upstream side of the electric precipitator 4, and SO 3 contained in the exhaust gas is collected and removed together with dust in the electric precipitator 4 as ammonium sulfate. Is done.

【0020】ここで、前記脱硫装置5から排出される脱
硫排水には、未反応のアンモニアが溶けて窒素分が多く
含まれることになるが、前記脱硫排水の一部は、気化器
8へ導入され、該気化器8において補助蒸気により加熱
され、脱硫排水中に含まれるアンモニアが気化されアン
モニアガスとして電気集塵機4の上流側に再注入される
一方、残りの脱硫排水は、従来と同様、排水処理装置7
において硝化菌等を用いた生物処理により脱窒が行われ
ると共に、還元性物質が高分子材料からなる吸着樹脂に
より吸着された後、清浄化された処理水として海等へ排
出される。
Here, the desulfurization effluent discharged from the desulfurization unit 5 contains a large amount of nitrogen because unreacted ammonia is dissolved, and a part of the desulfurization effluent is introduced into the vaporizer 8. Heated by the auxiliary steam in the vaporizer 8, the ammonia contained in the desulfurization wastewater is vaporized and re-injected into the upstream side of the electric precipitator 4 as ammonia gas, while the remaining desulfurization wastewater is drained as in the prior art. Processing unit 7
In the above, denitrification is performed by biological treatment using nitrifying bacteria or the like, and the reducing substance is adsorbed by an adsorption resin made of a polymer material, and then discharged to the sea or the like as purified treated water.

【0021】この結果、未反応のアンモニアが溶けて窒
素分が多く含まれた脱硫排水を全量排水処理装置7へ送
り込まずに済むため、排水処理装置7の容量を大きくす
る必要がなくなり、設備費の削減につながると共に、脱
窒のための各種薬品等の使用量が減り、運転費の削減に
もつながり、又、未反応のアンモニアを回収して再使用
することが可能となり、アンモニアの使用量も減るた
め、運転費が更に削減されることとなる。
As a result, the entire amount of desulfurized wastewater containing unreacted ammonia dissolved and containing a large amount of nitrogen does not need to be sent to the wastewater treatment apparatus 7, so that it is not necessary to increase the capacity of the wastewater treatment apparatus 7, and equipment costs are reduced. In addition to reducing the amount of ammonia used, the amount of various chemicals used for denitrification is reduced, leading to a reduction in operating costs. Unreacted ammonia can be recovered and reused, thus reducing the amount of ammonia used. As a result, operating costs are further reduced.

【0022】こうして、排水処理装置7の容量を小さく
することができ、且つ脱窒のための各種薬品等の使用量
並びにアンモニアの使用量を低減することができ、設備
費と運転費の削減を図り得る。
In this way, the capacity of the wastewater treatment apparatus 7 can be reduced, and the amount of various chemicals and the like used for denitrification and the amount of ammonia can be reduced. I can figure it out.

【0023】尚、本発明のボイラの排ガス処理設備は、
上述の図示例にのみ限定されるものではなく、本発明の
要旨を逸脱しない範囲内において種々変更を加え得るこ
とは勿論である。
The boiler exhaust gas treatment equipment of the present invention
It is needless to say that the present invention is not limited to the illustrated example described above, and various changes can be made without departing from the scope of the present invention.

【0024】[0024]

【発明の効果】以上、説明したように本発明のボイラの
排ガス処理設備によれば、排水処理装置の容量を小さく
することができ、且つ脱窒のための各種薬品等の使用量
並びにアンモニアの使用量を低減することができ、設備
費と運転費の削減を図り得るという優れた効果を奏し得
る。
As described above, according to the exhaust gas treatment equipment for a boiler of the present invention, the capacity of the wastewater treatment equipment can be reduced, the amount of various chemicals and the like used for denitrification and the amount of ammonia can be reduced. It is possible to achieve an excellent effect that the usage amount can be reduced and the facility cost and the operation cost can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明を実施する形態の一例の全体概要構成図
である。
FIG. 1 is an overall schematic configuration diagram of an example of an embodiment of the present invention.

【図2】従来例の全体概要構成図である。FIG. 2 is an overall schematic configuration diagram of a conventional example.

【符号の説明】[Explanation of symbols]

1 ボイラ 4 電気集塵機 5 脱硫装置 7 排水処理装置 8 気化器 Reference Signs List 1 boiler 4 electric precipitator 5 desulfurization device 7 wastewater treatment device 8 vaporizer

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ボイラから排出される排ガス中に含まれ
る煤塵を除去するための電気集塵機と、該電気集塵機で
煤塵が除去された排ガス中に含まれる硫黄酸化物を除去
するための脱硫装置と、該脱硫装置から排出される脱硫
排水を処理するための排水処理装置とを備え、前記電気
集塵機の上流側に排ガス中のSO3を除去するためにア
ンモニアを注入するようにしたボイラの排ガス処理設備
において、脱硫装置から排水処理装置へ送られる脱硫排
水の一部が導入され、且つ該脱硫排水中に含まれるアン
モニアを気化させアンモニアガスとして電気集塵機の上
流側に再注入する気化器を備えたことを特徴とするボイ
ラの排ガス処理設備。
1. An electric precipitator for removing dust contained in exhaust gas discharged from a boiler, and a desulfurization device for removing sulfur oxide contained in exhaust gas from which dust is removed by the electric dust collector. , and a waste water treatment apparatus for treating the desulfurization waste water discharged from the desulfurization apparatus, the exhaust gas treatment of a boiler which is adapted to inject ammonia to remove sO 3 in the exhaust gas on the upstream side of the electrostatic precipitator In the equipment, a part of the desulfurization wastewater sent from the desulfurization device to the wastewater treatment device was introduced, and a vaporizer for vaporizing ammonia contained in the desulfurization wastewater and re-injecting it as ammonia gas upstream of the electric dust collector was provided. An exhaust gas treatment facility for a boiler, characterized in that:
JP9318318A 1997-11-19 1997-11-19 Waste gas treating device for boiler Pending JPH11151424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9318318A JPH11151424A (en) 1997-11-19 1997-11-19 Waste gas treating device for boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9318318A JPH11151424A (en) 1997-11-19 1997-11-19 Waste gas treating device for boiler

Publications (1)

Publication Number Publication Date
JPH11151424A true JPH11151424A (en) 1999-06-08

Family

ID=18097864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9318318A Pending JPH11151424A (en) 1997-11-19 1997-11-19 Waste gas treating device for boiler

Country Status (1)

Country Link
JP (1) JPH11151424A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015166089A (en) * 2010-05-31 2015-09-24 三菱重工業株式会社 Exhaust gas treatment system and exhaust gas treatment method
US9381461B2 (en) 2010-05-31 2016-07-05 Mitsubishi Heavy Industries, Ltd. Air pollution control system and method
CN107381698A (en) * 2017-08-09 2017-11-24 中国大唐集团科学技术研究院有限公司 Utilize the system and method for fume afterheat processing desulfurization wastewater
CN108671726A (en) * 2018-06-01 2018-10-19 江苏联慧资源环境科技有限公司 The method that wet desulfurization flue gas takes off bletilla desulfurization wastewater emission reduction
CN109847575A (en) * 2018-12-07 2019-06-07 华电电力科学研究院有限公司 A kind of spray ammonia removal flue gas SO3System and its working method
CN109908729A (en) * 2018-12-25 2019-06-21 武汉龙净环保科技有限公司 High-temperature flue gas evaporates desulfurization wastewater treatment system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015166089A (en) * 2010-05-31 2015-09-24 三菱重工業株式会社 Exhaust gas treatment system and exhaust gas treatment method
US9381461B2 (en) 2010-05-31 2016-07-05 Mitsubishi Heavy Industries, Ltd. Air pollution control system and method
US10835862B2 (en) 2010-05-31 2020-11-17 Mitsubishi Heavy Industries Engineering, Ltd. Air pollution control system and method
CN107381698A (en) * 2017-08-09 2017-11-24 中国大唐集团科学技术研究院有限公司 Utilize the system and method for fume afterheat processing desulfurization wastewater
CN108671726A (en) * 2018-06-01 2018-10-19 江苏联慧资源环境科技有限公司 The method that wet desulfurization flue gas takes off bletilla desulfurization wastewater emission reduction
CN109847575A (en) * 2018-12-07 2019-06-07 华电电力科学研究院有限公司 A kind of spray ammonia removal flue gas SO3System and its working method
CN109908729A (en) * 2018-12-25 2019-06-21 武汉龙净环保科技有限公司 High-temperature flue gas evaporates desulfurization wastewater treatment system

Similar Documents

Publication Publication Date Title
CN1268876C (en) Waste gas processing system
US6770119B2 (en) Mercury removal method and system
CN101810993B (en) Method for achieving high effective mercury removal through modifying electrostatic precipitator
JP5675364B2 (en) Method for promoting mercury retention in wet flue gas desulfurization systems
JPH09313881A (en) Device for eliminating waste water discharge for boiler flue gas desulfurizer
JP5144967B2 (en) Exhaust gas treatment system
JP2977759B2 (en) Exhaust gas dry treatment method and apparatus
JPH11151424A (en) Waste gas treating device for boiler
JP2004218996A (en) Ammonia-containing waste gas treating device and method
EP3647659B1 (en) Gas combustion treatment method
JPH05245340A (en) Treatment of combustion exhaust gas
KR20080059958A (en) Simultaneous flue gas desulfurization and denitrification with ozone and active coke
CN101161331A (en) Method for processing low concentration unwanted waste gas using microwave-solid castoff
JPS5855302Y2 (en) Coal ash processing equipment
JPH0557141A (en) Flue gas desulfurization apparatus
JPH09243050A (en) Exhaust gas treatment method and apparatus
JP2001205044A (en) Method for desulfurization waste water treatment and its equipment
JP5299600B2 (en) Exhaust gas treatment method and exhaust gas treatment apparatus
JPH10118446A (en) Apparatus for treatment highly concentrated so2 gas containing exhaust gas
JPH08257363A (en) Exhaust gas treatment method
JPH04267926A (en) Method for separating ammonia from gas particularly exhaust gas produced in combustion process
JP2000254453A (en) Process and equipment for waste gas treatment
JPH11165043A (en) Treatment of waste gas of waste incinerator
JPH07308540A (en) Waste gas treatment
JPS6287227A (en) Dry stack gas desulfurization method