JPS63147519A - Method for removing total of mercury contained in exhaust gas and mercury contained in waste water of smoke cleaning - Google Patents
Method for removing total of mercury contained in exhaust gas and mercury contained in waste water of smoke cleaningInfo
- Publication number
- JPS63147519A JPS63147519A JP61235170A JP23517086A JPS63147519A JP S63147519 A JPS63147519 A JP S63147519A JP 61235170 A JP61235170 A JP 61235170A JP 23517086 A JP23517086 A JP 23517086A JP S63147519 A JPS63147519 A JP S63147519A
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- exhaust gas
- hypochlorite
- waste water
- wastewater
- 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
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 36
- 239000000779 smoke Substances 0.000 title claims abstract description 20
- 238000004140 cleaning Methods 0.000 title claims abstract description 12
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims description 68
- 229910052753 mercury Inorganic materials 0.000 title claims description 59
- 238000000034 method Methods 0.000 title claims description 18
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 18
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 11
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000008016 vaporization Effects 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 33
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 8
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000003463 adsorbent Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000009834 vaporization Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- -1 mercury vapor Chemical compound 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treating Waste Gases (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は都市ごみや産業廃棄物などの焼却に伴って発
生する排ガス中の水銀と、＋ＪＦガス処理に伴って生じ
た洗煙廃水中の水銀とを、全体的にかつ系統的に除去す
る方法に関する。[Detailed Description of the Invention] Industrial Application Field This invention is applicable to mercury in exhaust gas generated from the incineration of municipal waste and industrial waste, and mercury in smoke washing wastewater generated in conjunction with +JF gas treatment. It relates to a method for totally and systematically removing.
従来技術およびその問題点
都市ごみや産業廃棄物の焼却排ガス中の水銀は、水に対
して可溶性の水銀と不溶性の水銀とに大別される。この
うち可溶性水銀は、排ガス中の酸性成分を吸収除去する
目的で従来から実施されている、アルカリ性洗浄液を用
いた湿式洗煙法によってほぼ全部除去される。しかし水
銀蒸気のような不溶性水銀は、上記湿式洗煙法では除去
されない。そのため排ガス中の水銀全体の除去率にはお
のずと限界があった。Prior Art and its Problems Mercury in the exhaust gas from incineration of municipal waste and industrial waste is broadly classified into water-soluble mercury and water-insoluble mercury. Almost all of the soluble mercury is removed by a wet smoke cleaning method using an alkaline cleaning solution, which has been conventionally practiced for the purpose of absorbing and removing acidic components in exhaust gas. However, insoluble mercury such as mercury vapor is not removed by the wet smoke cleaning method described above. Therefore, there was a natural limit to the overall removal rate of mercury from exhaust gas.
また従来、排ガス中の水銀の除去方法と廃水中の水銀の
除去方法とは、それぞれ分離して考えられることが多か
った。そのため、排水中の水銀は必ずしも蒸気化回収し
やすいものではなかった。Furthermore, conventionally, methods for removing mercury from exhaust gas and methods for removing mercury from wastewater have often been considered separately. Therefore, mercury in wastewater is not always easy to recover by vaporization.
この発明は、上記の如き問題点に鑑み、排ガス中の水銀
と排ガス処理に伴って生じた洗煙廃水中の水銀とを全体
的にかつ系統的に高効率で除去することができる上に、
除去した水銀を資源として高収率で回収することができ
る水銀除去方法を提供することを目的とする。In view of the above-mentioned problems, the present invention is capable of totally and systematically removing mercury in exhaust gas and mercury in smoke washing wastewater generated due to exhaust gas treatment with high efficiency.
The object of the present invention is to provide a mercury removal method that allows the removed mercury to be recovered as a resource at a high yield.
問題点の解決手段
この発明は、排ガス中の水溶性水銀を洗浄液で吸収除去
した後、またはこれと同時に排ガス中の不溶性水銀を次
亜塩素Ｍ塩含有吸収液で吸収除去して、排ガス中の全水
銀を除き、生じた洗煙廃水にヒドラジンを添加して、廃
水中の水銀を還元・蒸気化させ、得られた水銀蒸気を回
収することを特徴とするものである。Means for Solving Problems This invention removes water-soluble mercury from exhaust gas by absorbing and removing it with a cleaning solution, or simultaneously absorbs and removing insoluble mercury from exhaust gas with an absorption solution containing hypochlorite M salt. The method is characterized in that all mercury is removed, hydrazine is added to the resulting smoke washing wastewater, the mercury in the wastewater is reduced and vaporized, and the resulting mercury vapor is recovered.
吸収液としては、有効塩素として濃度数ｐｐｍ〜数百ｐ
ｐｍの次亜塩素酸塩含有液を好ましくはｐＨ３〜８で用
いる。As an absorbing liquid, the concentration of available chlorine is several ppm to several hundred ppm.
pm hypochlorite-containing liquid is preferably used at pH 3-8.
洗煙廃水中の水銀の蒸気化の前に、必要に応じて廃水に
次亜塩素酸塩を添加して、水銀を蒸気化しやすい形態に
しておく。そして排ガスを次亜塩素酸塩含有吸収液で処
理することによって、排ガス中の不溶性水銀の除去と同
時に、排ガス中の窒素酸化物をもかなり吸収除去する。Before vaporizing the mercury in the smoke washing wastewater, hypochlorite is added to the wastewater as necessary to make the mercury in a form that is easily vaporized. By treating the exhaust gas with a hypochlorite-containing absorption liquid, insoluble mercury in the exhaust gas is removed, and at the same time, a considerable amount of nitrogen oxides in the exhaust gas is also absorbed and removed.
次亜塩素酸塩としては次亜塩素酸ナトリウムまたは次亜
塩素酸カルシウムがよく用いられる。As the hypochlorite, sodium hypochlorite or calcium hypochlorite is often used.
特に吸収液として次亜塩素酸カルシウムを含む液を用い
た場合、次亜塩素酸カルシウムの溶解度が小さいので、
吸収液中の有効塩素量を比較的高く保持することができ
、かつＨＣ／１Ｓ。Especially when using a liquid containing calcium hypochlorite as an absorption liquid, the solubility of calcium hypochlorite is low.
The amount of available chlorine in the absorption liquid can be maintained relatively high, and HC/1S.
Ｘなどの酸性成分の中和にも効果がある。その結果、酸
性成分吸収用のアルカリ剤の消費間を節減することがで
きる。It is also effective in neutralizing acidic components such as X. As a result, the consumption of alkaline agents for absorbing acidic components can be reduced.
実 施 例
つぎに、この発明の実施例について添附図面に基いて具
体的に説明する。Embodiments Next, embodiments of the present invention will be specifically described with reference to the accompanying drawings.
図面において、洗煙塔（１）は上下２室（２）（３）に
区分されている。下部室（３）にはその頂部からアルカ
リ性洗浄液が分散され、また上部室（２）にはその頂部
から次亜塩素酸ナトリウムを含む吸収液が分散されてい
る。こうして排ガスを洗煙処理して、下部室（３）にお
いてアルカリ性洗浄液に可溶性水銀を吸収させ、上部室
（２）において次亜塩素酸ナトリウム含有吸収液に不溶
性水銀を吸収させて、排ガスから全水銀を洗浄液および
吸収液に移す。この次亜塩素酸ナトリウム含有吸収液に
よる排ガス処理によって、排ガス中の不溶性水銀の除去
と同時に、排ガス中の不溶性窒素酸化物も相当量除去さ
れる。In the drawing, the smoke washing tower (1) is divided into two upper and lower chambers (2) and (3). An alkaline cleaning liquid is dispersed from the top of the lower chamber (3), and an absorbing liquid containing sodium hypochlorite is dispersed from the top of the upper chamber (2). In this way, the exhaust gas is smoke-washed, soluble mercury is absorbed by the alkaline cleaning liquid in the lower chamber (3), and insoluble mercury is absorbed by the sodium hypochlorite-containing absorbent in the upper chamber (2), so that all the mercury is removed from the exhaust gas. into the washing and absorbing solutions. By treating the exhaust gas with this sodium hypochlorite-containing absorption liquid, not only insoluble mercury in the exhaust gas is removed, but also a considerable amount of insoluble nitrogen oxides in the exhaust gas are removed.
洗煙により生じた廃水を廃水貯留槽（４）に一旦溜め、
貯留廃水に次亜塩素酸ナトリウムを添加し、同廃水を撹
拌する。その結果、廃水中の難分解性水銀や水銀錯化合
物は、後続プロセスにおいて蒸気化しやすい形態に分解
せられる。Wastewater generated from smoke washing is temporarily stored in a wastewater storage tank (4),
Add sodium hypochlorite to the stored wastewater and stir the wastewater. As a result, persistent mercury and mercury complex compounds in wastewater are decomposed into a form that is easily vaporized in subsequent processes.
なお、貯留廃水中にもともと十分な量の次亜塩素酸ナト
リウムが存在している場合には、周基の添加は必要ない
。Note that if a sufficient amount of sodium hypochlorite already exists in the stored wastewater, it is not necessary to add a perigroup.
ついで水銀を含む廃水を水銀蒸気化槽（５）に送り、回
漕（５）にヒドラジン水溶液を注入する。Next, the wastewater containing mercury is sent to a mercury vaporization tank (5), and a hydrazine aqueous solution is injected into the circulation tank (5).
その結果、廃水中の次亜塩素酸ナトリウムが分解され、
また廃水中の水銀が還元・蒸気化される。As a result, sodium hypochlorite in wastewater is decomposed,
Also, mercury in wastewater is reduced and vaporized.
生じた水銀蒸気をついで回収装置（６）に導き、同装置
に充填された吸着剤に水銀蒸気を吸着させる。こうして
水銀を回収する。なお水銀蒸気の回収は冷却方式で行な
ってもよい。The generated mercury vapor is then led to a recovery device (6), and the mercury vapor is adsorbed by an adsorbent filled in the device. In this way, mercury is recovered. Note that mercury vapor may be recovered by a cooling method.
水銀蒸気化後の廃水はヒドラジンの余剰分を含むだけで
あるので、通常の廃水処理装置において低負荷で処理で
きる。Since the wastewater after mercury vaporization only contains excess hydrazine, it can be treated with a low load in an ordinary wastewater treatment device.
上記プロセスのフローにおいて、次亜塩素酸ナトリウム
含有吸収液（温度６０〜７０℃）を用いて、排ガス（排
ガス量：約５０ＯＮｍ３／ｈ、排ガス温度：約２００℃
、入口ＨＣ／：４００〜５００ｐｐｍ、入口ＳＯｘ：３
０〜６０１）Ｉ）ｍ）を洗煙処理し、１時間毎に対象物
質の濃度を測定する（このとき洗煙塔下段の洗浄液の閣
は４へ５である）。In the above process flow, using an absorption liquid containing sodium hypochlorite (temperature 60 to 70°C), exhaust gas (exhaust gas amount: approximately 50ONm3/h, exhaust gas temperature: approximately 200°C
, Inlet HC/: 400-500ppm, Inlet SOx: 3
0 to 601) I) m) is subjected to smoke washing treatment, and the concentration of the target substance is measured every hour (at this time, the ratio of the cleaning liquid at the lower stage of the smoke washing tower is 4 to 5).
その結果、表１に示す水銀除去率および窒素酸化物除去
率、ならびに廃水中の全水銀の蒸気化率が得られた。同
表から明らかなように、排ガス中の水溶性水銀と不溶性
水銀よりなる全水銀が吸収除去されると同時に、窒素酸
化物もかなりの量吸収除去され、ざらに廃水中の全水銀
が高収率で回収された。As a result, the mercury removal rate, nitrogen oxide removal rate, and total mercury vaporization rate in wastewater shown in Table 1 were obtained. As is clear from the table, all mercury consisting of water-soluble mercury and insoluble mercury in the exhaust gas is absorbed and removed, and at the same time a considerable amount of nitrogen oxides is also absorbed and removed. recovered at a rate.
（以下余白）
表 １
発明の効果
この発明による水銀除去方法では、排ガスを洗煙処理し
た後、またはこれと同時に、次亜塩素酸塩含有液を用い
て排ガスを湿式処理するので、水溶性水銀はもとより、
従来除去困難であった水銀蒸気のような不溶性水銀も効
果的に除去できると同時に、排ガス中の不溶性窒素酸化
物も相当量除去することができる。(The following is a blank space) Table 1 Effects of the Invention In the mercury removal method according to the present invention, the exhaust gas is subjected to wet treatment using a hypochlorite-containing liquid after or at the same time as the smoke washing treatment, so water-soluble mercury is removed. Of course,
Insoluble mercury such as mercury vapor, which has been difficult to remove in the past, can be effectively removed, and at the same time, a considerable amount of insoluble nitrogen oxides in exhaust gas can also be removed.
また洗煙廃水にヒドラジンを添加して廃水中の水銀を蒸
気化するので、廃水中の水銀はほぼ定量的に除去され、
水銀除去後の廃水を常法により簡単に処理することがで
きる。さらに水銀蒸気を回収することにより、回収水銀
の再利用が可能である。In addition, since hydrazine is added to the smoke washing wastewater to vaporize the mercury in the wastewater, the mercury in the wastewater is almost quantitatively removed.
Wastewater after mercury removal can be easily treated by conventional methods. Furthermore, by recovering mercury vapor, it is possible to reuse the recovered mercury.
こうしてこの発明の方法によれば、排ガス中の水銀と排
ガス処理に伴って１じた洗煙廃水中の水銀とを全体的に
かつ系統的に除去することができ、水銀による環境汚染
を確実に防止することができる。Thus, according to the method of the present invention, mercury in exhaust gas and mercury in smoke washing wastewater that is generated during exhaust gas treatment can be removed completely and systematically, and environmental pollution caused by mercury can be reliably removed. It can be prevented.
図面はこの発明の実施例を示すフローシートである。
（１）・・・洗煙塔、（４）・・・廃水貯貿槽、（５）
・・・水銀蒸気化槽、（６）・・・水銀蒸気回収装置。
以 上The drawing is a flow sheet showing an embodiment of the invention. (1)... Smoke washing tower, (4)... Wastewater storage tank, (5)
...Mercury vaporization tank, (6) ...Mercury vapor recovery device. that's all
Claims (6)
、またはこれと同時に、排ガス中の不溶性水銀を次亜塩
素酸塩含有吸収液で吸収除去して、排ガス中の全水銀を
除き、生じた洗煙廃水にヒドラジンを添加して、廃水中
の水銀を還元・蒸気化させ、得られた水銀蒸気を回収す
ることを特徴とする、排ガス中の水銀と洗煙廃水中の水
銀のトータル除去方法。(1) After absorbing and removing water-soluble mercury in the exhaust gas with a cleaning solution, or at the same time, absorbing and removing insoluble mercury in the exhaust gas with a hypochlorite-containing absorption solution to remove all mercury in the exhaust gas, The total amount of mercury in the flue gas and smoke washing wastewater is characterized by adding hydrazine to the generated smoke washing waste water, reducing and vaporizing the mercury in the waste water, and recovering the obtained mercury vapor. Removal method.
によつて、排ガス中の不溶性水銀の除去と同時に、排ガ
ス中の窒素酸化物をもかなり吸収除去する特許請求の範
囲第１項記載の方法。(2) Claim 1: By treating the exhaust gas with a hypochlorite-containing absorption liquid, insoluble mercury in the exhaust gas is removed, and at the same time, a considerable amount of nitrogen oxides in the exhaust gas is also absorbed and removed. Method described.
塩素酸塩含有液を用いる特許請求の範囲第１または２項
記載の方法。(3) The method according to claim 1 or 2, in which a hypochlorite-containing solution having a concentration of several ppm to several hundred ppm is used as the available chlorine.
酸塩を添加して、水銀を蒸気化しやすい形態にしておく
特許請求の範囲第１〜３項のうちいずれか１項記載の方
法。(4) Any one of claims 1 to 3, in which hypochlorite is added to the wastewater before vaporizing the mercury in the smoke washing wastewater to make the mercury easily vaporizable. The method described in section.
次亜塩素酸カルシウムを用いる特許請求の範囲第１〜４
項のうらいずれか１項記載の方法。(5) Claims 1 to 4 using sodium hypochlorite or calcium hypochlorite as the hypochlorite
The method described in any one of the following items.
て、排ガスの洗浄に要するアルカリ剤の消費量を節減さ
せる特許請求の範囲第１〜４項のうちいずれか１項記載
の方法。(6) The method according to any one of claims 1 to 4, wherein calcium hypochlorite is used as the hypochlorite to reduce the amount of alkaline agent consumed for cleaning exhaust gas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17954986 | 1986-07-29 | ||
| JP61-179549 | 1986-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63147519A true JPS63147519A (en) | 1988-06-20 |
Family
ID=16067687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61235170A Pending JPS63147519A (en) | 1986-07-29 | 1986-10-01 | Method for removing total of mercury contained in exhaust gas and mercury contained in waste water of smoke cleaning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63147519A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100918A (en) * | 1986-10-16 | 1988-05-06 | Zensuke Inoue | Simultaneous removing method for mercury and nitrogen oxide in exhaust gas |
| JP2003001267A (en) * | 2001-06-26 | 2003-01-07 | Onahama Smelting & Refining Co Ltd | Method for removing mercury containing in waste gas |
| JP2003001062A (en) * | 2001-06-26 | 2003-01-07 | Onahama Smelting & Refining Co Ltd | Method of removing mercury contained in exhaust gas |
| US6534024B2 (en) * | 1999-12-10 | 2003-03-18 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment process |
| WO2011078084A1 (en) * | 2009-12-22 | 2011-06-30 | バブコック日立株式会社 | Method for cleaning used denitration catalyst |
| JP2013007547A (en) * | 2011-06-27 | 2013-01-10 | Kobelco Eco-Solutions Co Ltd | Power generation system and method of generating power |
| CN106582239A (en) * | 2016-12-19 | 2017-04-26 | 北京化工大学 | Device for treating hydrazine-containing waste gas in aircraft emergency power system and application of device |
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|---|---|---|---|---|
| JPS4970824A (en) * | 1972-09-21 | 1974-07-09 | ||
| JPS58224135A (en) * | 1982-06-22 | 1983-12-26 | Seitetsu Kagaku Co Ltd | Method for recovering mercury from waste water |
| JPS60183090A (en) * | 1984-02-29 | 1985-09-18 | Nippon Kokan Kk <Nkk> | Treatment of mercury-containing waste water |
-
1986
- 1986-10-01 JP JP61235170A patent/JPS63147519A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4970824A (en) * | 1972-09-21 | 1974-07-09 | ||
| JPS58224135A (en) * | 1982-06-22 | 1983-12-26 | Seitetsu Kagaku Co Ltd | Method for recovering mercury from waste water |
| JPS60183090A (en) * | 1984-02-29 | 1985-09-18 | Nippon Kokan Kk <Nkk> | Treatment of mercury-containing waste water |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100918A (en) * | 1986-10-16 | 1988-05-06 | Zensuke Inoue | Simultaneous removing method for mercury and nitrogen oxide in exhaust gas |
| US6534024B2 (en) * | 1999-12-10 | 2003-03-18 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment process |
| JP2003001267A (en) * | 2001-06-26 | 2003-01-07 | Onahama Smelting & Refining Co Ltd | Method for removing mercury containing in waste gas |
| JP2003001062A (en) * | 2001-06-26 | 2003-01-07 | Onahama Smelting & Refining Co Ltd | Method of removing mercury contained in exhaust gas |
| WO2011078084A1 (en) * | 2009-12-22 | 2011-06-30 | バブコック日立株式会社 | Method for cleaning used denitration catalyst |
| JP2011131122A (en) * | 2009-12-22 | 2011-07-07 | Babcock Hitachi Kk | Method of cleaning used denitration catalyst |
| US8748332B2 (en) | 2009-12-22 | 2014-06-10 | Babcock-Hitachi Kabushiki Kaisha | Method for cleaning used denitration catalyst |
| JP2013007547A (en) * | 2011-06-27 | 2013-01-10 | Kobelco Eco-Solutions Co Ltd | Power generation system and method of generating power |
| CN106582239A (en) * | 2016-12-19 | 2017-04-26 | 北京化工大学 | Device for treating hydrazine-containing waste gas in aircraft emergency power system and application of device |
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