JPS63315129A - Process for treating incinerator flue gases - Google Patents
Process for treating incinerator flue gasesInfo
- Publication number
- JPS63315129A JPS63315129A JP62149989A JP14998987A JPS63315129A JP S63315129 A JPS63315129 A JP S63315129A JP 62149989 A JP62149989 A JP 62149989A JP 14998987 A JP14998987 A JP 14998987A JP S63315129 A JPS63315129 A JP S63315129A
- Authority
- JP
- Japan
- Prior art keywords
- electric power
- exhaust gas
- generated
- flue gases
- recovered
- 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
- 238000000034 method Methods 0.000 title claims description 20
- 239000003546 flue gas Substances 0.000 title abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005406 washing Methods 0.000 claims abstract description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 10
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000460 chlorine Substances 0.000 claims abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 6
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 9
- 238000005868 electrolysis reaction Methods 0.000 claims description 8
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 abstract description 8
- 238000009270 solid waste treatment Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 238000004140 cleaning Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 229940072033 potash Drugs 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 235000015320 potassium carbonate Nutrition 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 239000003729 cation exchange resin Substances 0.000 description 2
- 239000010849 combustible waste Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 hydrogen chloride Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000010850 non-combustible waste Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は都市ゴミ又は産業廃棄物などの各種廃棄物の焼
却排ガスの処理法に関するもので、詳しくは、前記排ガ
スの顕熱を利用して発電を行ない、更にこの電力を利用
して排ガス洗浄水中の無機塩を電気分解する方法に関す
るものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a method for treating exhaust gas from incineration of various types of waste such as municipal garbage or industrial waste. The present invention relates to a method of generating electricity and further utilizing this electricity to electrolyze inorganic salts in exhaust gas cleaning water.
［従来の技術］
例えば、都市ゴミは清掃工場において、通常、可燃物と
不燃物に選別され、そして可燃物は焼却炉にて焼却処理
されるが、この焼却炉では多量の焼却ダストを含む排ガ
スが発生するので、該排ガスは例えば、電気束じん器に
おいて焼却ダストを分離する必要がある。一方、電気束
じん器からの排ガス中には、かなりの塩化水素などの無
機塩が含まれており、通常、これを除去するためガス洗
浄設備で水洗した後、この洗浄設備からの排水中に苛性
ソーダーを加えて中和させると、塩化ナトリウム等の無
機塩が生成される。その濃度は１０数％にも及ぶものと
なる。そのため、このような排水をそのまま下水道に放
流することはできず、従来、多量の水を用いて希釈した
後、放流していた。[Prior Art] For example, municipal waste is usually sorted into combustible and non-combustible materials at an incineration plant, and the combustible materials are incinerated in an incinerator, but this incinerator produces exhaust gas containing a large amount of incineration dust. Therefore, it is necessary to separate the incineration dust from the exhaust gas, for example, in an electropulverizer. On the other hand, the exhaust gas from electric flux dusters contains a considerable amount of inorganic salts such as hydrogen chloride, and in order to remove this, it is usually washed with water in gas cleaning equipment, and then during the drainage from this cleaning equipment. When caustic soda is added to neutralize, inorganic salts such as sodium chloride are produced. Its concentration reaches as much as 10%. Therefore, such wastewater cannot be directly discharged into the sewer system, and conventionally, it has been diluted with a large amount of water before being discharged.
［発明の目的と達成手段］
本発明は上述のような清掃工場における処理において、
洗浄設備からの排水中に含まれる無機塩を有効成分とし
て回収し、その結果、排水放流に伴う希釈操作も省略で
きるプロセスを提供するものであり、その目的は焼却炉
からの排ガスの有する顕熱を利用して回収した電力を用
い、洗浄設備からの排水中に含まれる無機塩を電気分解
して、苛性ソーダ（カリ）、塩素又は次亜塩素酸ソーダ
（カリ）などを回収することにより達成される。[Objects and Means of Achieving the Invention] The present invention is directed to the above-mentioned processing at an incineration plant,
The purpose is to recover inorganic salts contained in wastewater from cleaning equipment as active ingredients, and as a result, the dilution operation associated with wastewater discharge can be omitted. This is achieved by electrolyzing the inorganic salts contained in the waste water from cleaning equipment using the electricity recovered from the system, and recovering caustic soda (potash), chlorine, or sodium hypochlorite (potash). Ru.
すなわち、本発明の要旨は、廃棄物を焼却する際に焼却
炉より発生する高温の排ガスを廃熱ボイラーに供給して
熱エネルギーを回収した後、燃焼ダストを分離し、次い
で、水洗浄処理する方法において、前記熱エネルギーを
用いて発電を行ない、ここで回収される電力を利用して
前記水洗浄後の無機塩含有水を電気分解することを特徴
とする焼却排ガスの処理法に存する。That is, the gist of the present invention is to supply high-temperature exhaust gas generated from an incinerator when incinerating waste to a waste heat boiler to recover thermal energy, then to separate combustion dust, and then to perform water washing treatment. The method resides in a method for treating incineration gas, characterized in that the thermal energy is used to generate electricity, and the recovered electricity is used to electrolyze the inorganic salt-containing water after washing with water.
［構成要件の説明］ 以下、本発明の詳細な説明する。[Explanation of configuration requirements] The present invention will be explained in detail below.
第１図は本発明の処理法を適用した一例の清掃工場のフ
ロー図である。先ず、清掃工場においては、収集された
都市ゴミを可燃ゴミと不燃ゴミとに選別し、そして、可
燃ゴミを焼却炉で焼却処理される。ここでは、焼却灰が
回収されるとともに、多量の燃焼ダストを含む排ガスが
発生する。したがって、この排ガスは通常、電気集じん
器に供給し燃焼ダストを回収するが、この排ガスの温度
は一般的に８００〜９００℃程度と高温である。FIG. 1 is a flow diagram of an example of an incineration plant to which the treatment method of the present invention is applied. First, at the incineration plant, the collected municipal waste is separated into combustible and non-combustible waste, and then the combustible waste is incinerated in an incinerator. Here, incinerated ash is collected and exhaust gas containing a large amount of combustion dust is generated. Therefore, this exhaust gas is normally supplied to an electrostatic precipitator to collect combustion dust, but the temperature of this exhaust gas is generally as high as about 800 to 900°C.
そこで、本発明では、この排ガスの有する顕熱を利用し
て蒸気を回収し、この蒸気によって発電を行なうことを
必須要件とするものである。排ガス中の顕熱回収に使用
するボイラーとしては通常、自然循環式水管ボイラーな
どの一般的に廃熱回収用ボイラーとして利用されている
ものが使用し得る。ここで発生した蒸気は発電設備に供
され、常法に従って発電され電力回収することができる
。Therefore, in the present invention, it is essential to recover steam by utilizing the sensible heat of this exhaust gas and to generate electricity using this steam. As the boiler used to recover sensible heat from exhaust gas, boilers commonly used for waste heat recovery, such as natural circulation water tube boilers, can be used. The steam generated here is provided to power generation equipment, and electricity can be generated and recovered using conventional methods.
回収される電力量は排ガス量及び温度、回収条件により
異なるが、例えば、８００℃の高温排ガス１００、ＯＯ
ＯＮｍ３ ／ｈｘ２炉をボイラーに供給した場合には、
５０ｔ／ｈＸ２炉井＃；の１５にΩ／Ｃｍ２蒸気が発生
し、これにより４２００ｋｗ程度の電力が回収できる。The amount of electricity recovered varies depending on the exhaust gas amount, temperature, and recovery conditions, but for example, if the high-temperature exhaust gas at 800°C is
When ONm3/hx2 furnace is supplied to the boiler,
Ω/Cm2 steam is generated in 50t/h×2 reactor well #15, and about 4200kw of electricity can be recovered from this.
顕熱回収を終えた排ガスは例えば、電気集じん器に送ら
れ、ガス中の燃焼ダストを回収する。電気集じん器によ
って排ガス中のダストは殆んど除去されるが、ガス中に
は相当量のＨＣＱ等が含まれ、これを除去するため、ガ
スを洗浄し、その洗浄水を嵜性ソーダで中和するためＮ
ａＣＱ等の無機塩が含有されている。したがって、次い
で、このガスはガス洗浄設備に供給され洗浄した後、系
外にパージすることが必要である。The exhaust gas that has undergone sensible heat recovery is sent to, for example, an electrostatic precipitator to collect combustion dust in the gas. Although most of the dust in the exhaust gas is removed by an electrostatic precipitator, the gas contains a considerable amount of HCQ, etc., and in order to remove this, the gas is washed and the washing water is washed with soda. N to neutralize
Contains inorganic salts such as aCQ. Therefore, this gas must then be supplied to a gas cleaning facility, cleaned, and then purged out of the system.
ガス洗浄方法としては、通常、洗浄塔にて排ガスと洗浄
液を向流もしくは並流で接触させる方法、又は、洗浄液
の貯槽中に排ガスを通過させる方法等が挙げられる。ま
た、洗浄水としては、通常、水である。洗浄温度は特に
限定されないが、例えば、５０〜８０℃でおる。この処
理によって、排ガス中のＨＣＱ等が除去される。Examples of the gas cleaning method include a method in which the exhaust gas and the cleaning liquid are brought into contact with each other in a cleaning tower in countercurrent or cocurrent flow, or a method in which the exhaust gas is passed through a storage tank for the cleaning liquid. Further, the washing water is usually water. Although the washing temperature is not particularly limited, it is, for example, 50 to 80°C. Through this treatment, HCQ and the like in the exhaust gas are removed.
一方、洗浄後の洗浄水中には無機塩が溶解されることに
なるが、本発明においては、この無機塩含有水を電気分
解装置に供給し電気分解することを必須要件とするもの
である。電気分解装置へ供給する処理水中の無機塩濃度
は通常、１〜３５重量％、好ましくは３〜２０重量％で
あり、この濃度があまり低くても、また、あまり高くて
も効率的な電気分解を行なうことはできない。On the other hand, inorganic salts will be dissolved in the washing water after washing, but in the present invention, it is an essential requirement to supply this inorganic salt-containing water to an electrolyzer and electrolyze it. The inorganic salt concentration in the treated water supplied to the electrolyzer is usually 1 to 35% by weight, preferably 3 to 20% by weight, and even if this concentration is too low or too high, efficient electrolysis cannot be achieved. cannot be done.
したがって、ガス洗浄設備からの処理水の無機塩濃度が
低い場合には、必要に応じて、濃縮処理するのが望まし
い。この濃縮処理の方法としては、例えば、加熱濃縮又
は抽出処理による濃縮などの方法が採用し得る。Therefore, when the inorganic salt concentration of the treated water from the gas cleaning equipment is low, it is desirable to carry out concentration treatment as necessary. As a method for this concentration treatment, for example, a method such as concentration by heating or concentration by extraction treatment can be adopted.
更に、処理中には、例えば、Ａｓ、Ｃ’ｒ、Ｚｎ。Furthermore, during processing, for example, As, C'r, Zn.
Ｃｄ、Ｐｄ、ＨＱのような重金属が微量、含まれており
、これらの重金属は電気分解装置で悪影響を及ぼすこと
があるので、場合により、この重金属を予め、除去する
のが好ましい。重金属の除去方法としては、通常、キレ
ート樹脂又は陽イオン交換樹脂を用いて吸着除去する方
法、又は、アルカリを用いて水酸化物として沈澱除去す
る方法などの公知の方法を採用することができる。It contains trace amounts of heavy metals such as Cd, Pd, and HQ, and these heavy metals may have an adverse effect on the electrolyzer, so it is preferable to remove these heavy metals in advance in some cases. As a method for removing heavy metals, generally known methods such as adsorption removal using a chelate resin or cation exchange resin, or precipitation removal as hydroxide using an alkali can be employed.
電気分解においては、主に、下記の２つの加水分解反応
により苛性ソーダ（カリ〉と塩素又は次亜塩素酸ソーダ
（カリ）を回収することができる。In electrolysis, caustic soda (potash) and chlorine or sodium hypochlorite (potash) can be recovered mainly through the following two hydrolysis reactions.
■２ＮａＣＩ ＋２８２０
→２ＮａＯＨ＋ＣＩ ２ ＋）−１２↑■ＮａＣｌ ＋
Ｈ２０
→ＮａＣＩ Ｏ＋Ｈ２↑
電気分解の方法としては上記■の場合には、例えば第２
図に示すフローに従って、公知の陽極と陰極とを有する
隔膜型又はイオン交換膜型電解槽を利用し、常法によっ
て直流電源を用いて、陽極側より塩素ガスを発生させ、
一方、陰極側より水素ガスを発生させるとともに、苛性
ソーダを回収することができる。また上記■の場合には
、例えば、第３図に示すフローに従って、電解槽内で発
生した苛性ソーダと塩素により次亜塩素酸ソーダが生成
し、これを水素ガスとともに回収することができる。■2NaCI +2820 →2NaOH+CI 2 +) -12↑■NaCl +
H20 → NaCI O+H2↑ In the case of the above ■, the electrolysis method is, for example, the second
According to the flow shown in the figure, a diaphragm type or ion exchange membrane type electrolytic cell having a known anode and a cathode is used, and chlorine gas is generated from the anode side using a DC power supply in a conventional manner.
On the other hand, hydrogen gas can be generated from the cathode side, and caustic soda can be recovered. In the case of (2) above, for example, sodium hypochlorite is generated from the caustic soda and chlorine generated in the electrolytic cell according to the flow shown in FIG. 3, and this can be recovered together with hydrogen gas.
本発明においては、上述の焼却炉の排ガスを利用して発
電した電力を前記電気分解に使用することを要件とする
ものである。すなわち、同じ清掃工場内おいて、有効に
回収した電力をエネルギー源として活用しようとするの
である。通常、前記電気分解においては１０ＫＷｈの電
力が必要であるが、本発明によれば、その約１００％が
先に回収した電力により補充できるのである。そして、
更に、電気分解により生成した苛性ソーダ、塩素ガス又
は次亜塩素酸ソーダは清掃工場内の各種処理薬剤として
有効に活用することができる。The present invention requires that the electric power generated using the exhaust gas of the incinerator described above be used for the electrolysis. In other words, the aim is to utilize the effectively recovered electricity as an energy source within the same incineration plant. Normally, the electrolysis requires 10 KWh of electric power, but according to the present invention, about 100% of this can be replenished by the previously recovered electric power. and,
Furthermore, caustic soda, chlorine gas, or sodium hypochlorite produced by electrolysis can be effectively used as various treatment chemicals in incineration plants.
［発明の効果］
本発明によれば、清掃工場などの焼却炉排ガスを利用し
て得た電力を用いて、ガス洗浄設備からの処理液を電気
分解するので、処理液の希釈放流などの手間が不要とな
った上、余分なエネルギーを用いず、苛性ソーダ、塩素
又は次亜塩素酸ソーダを回収することができる。したが
って、本発明の方法は同一の清掃工場内においてエネル
ギーを効率的に利用し得るので、その経済的価値は極め
て大きいものである。[Effects of the Invention] According to the present invention, the treatment liquid from the gas cleaning equipment is electrolyzed using electric power obtained from the exhaust gas of an incinerator such as an incineration plant, thereby eliminating the trouble of diluting and discharging the treatment liquid. In addition, caustic soda, chlorine, or sodium hypochlorite can be recovered without using extra energy. Therefore, since the method of the present invention can efficiently utilize energy within the same incineration plant, its economic value is extremely large.
［実施例コ
次に、本発明を実施例により更に詳細に説明するが、本
発明はその要旨を超えない限り以下の実施例の記述に限
定されるものではない。[Example] Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the description of the following Examples unless the gist thereof is exceeded.
実施例
都市ゴミを選別した後の可燃ゴミを焼却している可変速
揺動階段型焼却炉から排出される８５０°Ｃの排ガス１
００，００ＯＮｍ３ ／ｈｒｘ２炉を自然循環水管廃熱
ボイラーに供給し、ここで２２０°Ｃの１５ＫＯ／ｃｍ
２スチーム５０ｔ／ｈｘ２炉午りを発生させ、このスチ
ームを利用して発電設備において４２００ＫＷの電力を
回収した。Example 850°C exhaust gas 1 discharged from a variable speed swinging staircase type incinerator incinerating combustible garbage after sorting municipal garbage
00,00ONm3/hrx2 furnace is fed to a natural circulation water tube waste heat boiler where 15KO/cm at 220°C
Two steams were generated at 50t/h x two furnaces, and this steam was used to recover 4200KW of electricity at the power generation facility.
一方、前記ボイラーからの排ガスは次いで、電気集塵器
を通し燃焼ダストを除去した後、ラシヒリングが充填さ
れたガス洗浄塔（高さ２７ｍ、径５．６ｍ＞の下部に供
給し、頂部より水６００ｔ／ｈをスプレーし７０℃の温
度にて向流接触させた。On the other hand, the exhaust gas from the boiler is then passed through an electrostatic precipitator to remove combustion dust, and then supplied to the bottom of a gas scrubbing tower (27 m high, 5.6 m in diameter) filled with Raschig rings, and water is poured from the top. 600 t/h was sprayed and countercurrent contact was carried out at a temperature of 70°C.
ここで得られた処理水を陽イオン交換樹脂で処理した後
、処理液中のＮａＣ＋濃度が５重量％となるまで加熱濃
縮し、次いで、第２図のフローに従って、陽極としてＴ
１、陰極としてＦｅを有する隔膜型電解槽に供給し、上
記で回収した電気を利用して、８Ｋｗの電力にて電気分
解を行なった。After the treated water obtained here was treated with a cation exchange resin, it was heated and concentrated until the NaC+ concentration in the treated liquid became 5% by weight.
1. The material was supplied to a diaphragm-type electrolytic cell having Fe as a cathode, and electrolysis was performed at a power of 8 Kw using the electricity recovered above.
その結果、１０重量％苛性ソーダ９８０Ω／ｈｒ、塩素
ガス２０ｍ３／ｈｒ、水素ガス２０ｍ３／ｈｒが各々回
収された。As a result, 980 Ω/hr of 10 wt% caustic soda, 20 m3/hr of chlorine gas, and 20 m3/hr of hydrogen gas were recovered.
第１図は本発明の処理法を適用した一例の清掃工場のフ
ロー図であり、第２図及び第３図は電気分解装置の一例
を各々示すフロー図である。FIG. 1 is a flowchart of an example of an incineration plant to which the treatment method of the present invention is applied, and FIGS. 2 and 3 are flowcharts of an example of an electrolyzer.
Claims (4)
排ガスをボイラーに供給して熱エネルギーを回収した後
、燃焼ダストを分離し、次いで、水洗浄処理する方法に
おいて、前記熱エネルギーを用いて発電を行ない、ここ
で回収される電力を利用して、前記水洗浄後の無機塩含
有水を電気分解することを特徴とする焼却排ガスの処理
法。(1) A method in which high-temperature exhaust gas generated from an incinerator when incinerating waste is supplied to a boiler to recover thermal energy, and then combustion dust is separated and then washed with water. A method for treating incineration exhaust gas, characterized in that the inorganic salt-containing water after the water washing is electrolyzed using the recovered electricity.
１０重量％であることを特徴とする特許請求の範囲第（
１）項記載の処理法。(2) The inorganic salt concentration in the inorganic salt-containing water to be electrolyzed is 5~
Claim No. 1, characterized in that the amount is 10% by weight (
Treatment method described in section 1).
ソーダを回収することを特徴とする特許請求の範囲第（
１）項記載の処理法。(3) Claim No. 3, characterized in that caustic soda, chlorine, or sodium hypochlorite is recovered by electrolysis.
Treatment method described in section 1).
０℃であることを特徴とする特許請求の範囲第（１）項
記載の処理法。(4) The temperature of the exhaust gas generated from the incinerator is 800 to 90.
The treatment method according to claim (1), characterized in that the temperature is 0°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62149989A JPS63315129A (en) | 1987-06-16 | 1987-06-16 | Process for treating incinerator flue gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62149989A JPS63315129A (en) | 1987-06-16 | 1987-06-16 | Process for treating incinerator flue gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63315129A true JPS63315129A (en) | 1988-12-22 |
Family
ID=15487031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62149989A Pending JPS63315129A (en) | 1987-06-16 | 1987-06-16 | Process for treating incinerator flue gases |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63315129A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006088095A (en) * | 2004-09-27 | 2006-04-06 | V-Tech Corp | Treatment method of gas generated from incinerator |
| JP2006305510A (en) * | 2005-05-02 | 2006-11-09 | Taiheiyo Cement Corp | Combustion exhaust gas treatment system and wastewater treatment method of wet type dust collector |
| JP2012196601A (en) * | 2011-03-18 | 2012-10-18 | Omega:Kk | Wastewater treatment method |
-
1987
- 1987-06-16 JP JP62149989A patent/JPS63315129A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006088095A (en) * | 2004-09-27 | 2006-04-06 | V-Tech Corp | Treatment method of gas generated from incinerator |
| JP4649631B2 (en) * | 2004-09-27 | 2011-03-16 | Ｊｆｅエンジニアリング株式会社 | Treatment method of gas generated from incinerator |
| JP2006305510A (en) * | 2005-05-02 | 2006-11-09 | Taiheiyo Cement Corp | Combustion exhaust gas treatment system and wastewater treatment method of wet type dust collector |
| JP2012196601A (en) * | 2011-03-18 | 2012-10-18 | Omega:Kk | Wastewater treatment method |
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