JPH0226615A - Desulfurization apparatus for digester gas - Google Patents
Desulfurization apparatus for digester gasInfo
- Publication number
- JPH0226615A JPH0226615A JP63174043A JP17404388A JPH0226615A JP H0226615 A JPH0226615 A JP H0226615A JP 63174043 A JP63174043 A JP 63174043A JP 17404388 A JP17404388 A JP 17404388A JP H0226615 A JPH0226615 A JP H0226615A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen sulfide
- layer
- microorganisms
- gases
- digester
- 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
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 17
- 230000023556 desulfurization Effects 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 30
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000029087 digestion Effects 0.000 claims abstract description 18
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 18
- 244000005700 microbiome Species 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims abstract description 4
- 239000010815 organic waste Substances 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000010865 sewage Substances 0.000 abstract description 6
- 239000010801 sewage sludge Substances 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000003415 peat Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- -1 sulfuric acid ions Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000000945 filler Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 235000016068 Berberis vulgaris Nutrition 0.000 description 3
- 241000335053 Beta vulgaris Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、下水、し尿、産業排水、汚泥などの有機性排
水を処理するために設けられる嫌気性消化処理工程から
発生する消化ガス中に含まれる硫化水素などを脱硫する
装置に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention provides a method for treating organic wastewater such as sewage, human waste, industrial wastewater, sludge, etc. This invention relates to an apparatus for desulfurizing hydrogen sulfide and the like contained therein.
下水、し尿、産業排水、汚泥などの有機性排水の処理法
として、嫌気性処理法が広く採用されており、嫌気性菌
による浮遊型処理方法にくわえて、活性炭、ゼオライト
、砂、軽量骨材等の担体粒子に嫌気性菌を主体とする生
物膜を付着させたものを利用する方法が実用化されてい
る。Anaerobic treatment methods are widely used to treat organic wastewater such as sewage, human waste, industrial wastewater, and sludge.In addition to floating treatment methods using anaerobic bacteria, activated carbon, zeolite, sand, and lightweight aggregates are A method has been put into practical use that utilizes carrier particles such as those to which a biofilm consisting mainly of anaerobic bacteria is attached.
この嫌気性処理法にともなって発生する消化ガス中の硫
化水素の除去法としては従来下記の２つの方法が使われ
ているがそれぞれに問題点が存在する。Conventionally, the following two methods have been used to remove hydrogen sulfide from the digestion gas generated with this anaerobic treatment method, but each method has its own problems.
１）水洗法
この方法は多量の水を必要とし、それでもなお硫化水素
の除去が不完全であり、しかも水に吸収された硫化水素
はそのままの形で存在するので、その処理が必要である
。1) Water washing method This method requires a large amount of water, and even then hydrogen sulfide removal is incomplete, and furthermore, hydrogen sulfide absorbed in water remains in its original form, so it must be treated.
２）鉄系吸着剤による除去法
硫化水素を吸着させて、硫化鉄の形で固定化する方法で
あるが、吸着済の吸着剤は発熱性、発火性を有し、その
取り扱い、処分が困難である。2) Removal method using iron-based adsorbent This method adsorbs hydrogen sulfide and fixes it in the form of iron sulfide, but the adsorbed adsorbent is exothermic and flammable, making it difficult to handle and dispose of. It is.
本発明の目的は、前述の従来からの問題点を解消し、消
化゛ガス中の硫化水素を効率よく除去するための装置を
提供する点にある。An object of the present invention is to solve the above-mentioned conventional problems and to provide an apparatus for efficiently removing hydrogen sulfide from digestion gas.
本発明は硫化水素を酸化分解する微生物が付着した充填
材層を有する生物脱硫塔と該塔に有機性廃棄物の嫌気性
消化処理によって得られる消化ガスを導入する手段と、
前記生物脱硫塔から処理ガスを排出する手段と、前記生
物脱硫塔に空気または酸素を供給する手段とを備えた消
化ガスの脱硫装置に関する。The present invention provides a biological desulfurization tower having a packing layer to which microorganisms that oxidize and decompose hydrogen sulfide are attached, a means for introducing into the tower a digestion gas obtained by anaerobic digestion of organic waste,
The present invention relates to a digester gas desulfurization device comprising means for discharging treated gas from the biological desulfurization tower and means for supplying air or oxygen to the biological desulfurization tower.
前記充填材としては、充填材としての一般的な物性を有
し、微生物の付着、増殖、水分の保持、臭気ガスの吸着
等に有効なものであれば良く、特に制限はないが、一般
には、ビート、木炭、コークス、活性炭、ゼオライト、
土壌、コンポスト化汚泥等を使用することができる。こ
れらのうちでもビート、木炭が圧密化されず、通気性が
良いことから特に好ましい。The filler may be any material as long as it has general physical properties as a filler and is effective in adhering and multiplying microorganisms, retaining moisture, adsorbing odor gas, and is not particularly limited. , beet, charcoal, coke, activated carbon, zeolite,
Soil, composted sludge, etc. can be used. Among these, beets and charcoal are particularly preferred because they are not compacted and have good air permeability.
本発明において、生物脱硫塔に空気又は酸素を供給する
のは、消化ガス中には酸素が含まれていないからである
。しかしながら、脱硫された消化ガスを用いて嫌気性消
化槽内をガス撹拌する場合には、酸素がガス中に残留し
ない方が好ましい。In the present invention, air or oxygen is supplied to the biological desulfurization tower because the digestion gas does not contain oxygen. However, when stirring the inside of an anaerobic digestion tank using desulfurized digestion gas, it is preferable that no oxygen remains in the gas.
消化ガスの生物脱硫に必要な酸素量は、消化ガス中の硫
化水素濃度によって変るが、処理ガス中の酸素濃度が少
くとも５００ｐｐｍ程度になるようにすればよい。The amount of oxygen required for biological desulfurization of the digestion gas varies depending on the concentration of hydrogen sulfide in the digestion gas, but the oxygen concentration in the treated gas should be at least about 500 ppm.
生物脱硫塔から排出されるドレンは、その１部は循環再
利用し、一部はそのまま廃棄される。A portion of the drain discharged from the biological desulfurization tower is recycled and recycled, and a portion is disposed of as is.
ド゛レンの循環量は充填材層を通過する水系のＰＨが３
〜４になるよう調節することが好ましい。The circulation amount of drain is determined when the pH of the water system passing through the filler layer is 3.
It is preferable to adjust it to 4.
硫化水素を分解する微生物は通常Ｐ）１３〜４において
最も活性が高いからである。一方、このようなＰＨでは
消化ガス中の主要成分であるメタンガスを分解する微生
物の活性は低いので、メタンガスが分解することはほと
んど外い。This is because microorganisms that decompose hydrogen sulfide usually have the highest activity in P)13-4. On the other hand, at such a pH, the activity of microorganisms that decompose methane gas, which is the main component in the digestion gas, is low, so it is almost impossible for methane gas to be decomposed.
ｐＨの測定は１図面に示すように充填材層中にｐＨメー
タのセンサを設置する方法、散水管出口の水のｐＨを測
定する方法、ドレンのＰＨを測定する方法あるいはこれ
らの方法の組合せなどによることができ、その結果は、
ドレンの循環量の制御バルブ、補給水の制御バルブ、補
給水やドレンの供給用ポンプの出力（吐出量）等にフィ
ードバックさせて、充填材層中のｐｉを制御することが
できる。The pH can be measured by installing a pH meter sensor in the filler layer as shown in Figure 1, by measuring the pH of the water at the outlet of the sprinkler pipe, by measuring the pH of the drain, or by a combination of these methods. The result can be
The pi in the filler layer can be controlled by feedback to the control valve for the circulation amount of drain, the control valve for make-up water, the output (discharge amount) of the pump for supplying make-up water and drain, and the like.
実施例
第１図を参照して説明する。内径４００■謙、高さ６０
０■のアクリル樹脂製の生物脱硫塔１に、繊維状のビー
トを３００閣の高さに充填し、充填材層２を形成した。An embodiment will be explained with reference to FIG. Inner diameter 400cm, height 60cm
A biological desulfurization tower 1 made of 0cm acrylic resin was filled with fibrous beets to a height of 300mm to form a filler layer 2.
この充填材層２に、下水処理場の生物処理水を通液して
植菌した後、硫化水素を含む下水処理場の臭気を通気し
て、微生物の馴養を行った。After biologically treated water from a sewage treatment plant was passed through this filler layer 2 to inoculate it, the odor of the sewage treatment plant containing hydrogen sulfide was passed through the layer to acclimatize the microorganisms.
次に下水汚泥の嫌気性消化処理によって得られた消化ガ
ス（Ｈ，Ｓ濃度５００ｐｐｍ）を６２．８嚢／分（空間
速度１００ｈｒ−″）で導入管３から導入すると共に、
空気供給管４がら空気を０．３ｆｉ／分の吹込み量で供
給し、排出管５から処理ガスを排出した。Next, digestion gas (H, S concentration 500 ppm) obtained by anaerobic digestion of sewage sludge was introduced from the introduction pipe 3 at a rate of 62.8 bags/min (space velocity 100 hr-'').
Air was supplied through the air supply pipe 4 at a blowing rate of 0.3 fi/min, and the process gas was discharged through the discharge pipe 5.
また、充填材層１の水分補給のため、散水管６から水を
２時間おきに充填材１−当り２５１２散布すると共に、
充填材層内のｐＨを３〜４に保持した。 ｐＨは、充填
材層を流下した硫酸イオンを含有する水を一部補給水と
して再循環することにより制御した。In addition, in order to replenish the water in the filler layer 1, water is sprayed every two hours from the water sprinkler pipe 6 at a rate of 2,512 liters per filler 1.
The pH within the filler layer was maintained at 3-4. The pH was controlled by partially recirculating the water containing sulfate ions flowing down the filler bed as make-up water.
処理ガスはＨ，Ｓが９９％除去されていた。99% of H and S were removed from the processing gas.
■ 消化ガス中の硫化水素を選択的に、効率よく分解除
去することができる。■ Hydrogen sulfide in digestion gas can be selectively and efficiently decomposed and removed.
■ 硫化水素は、分解されて、硫酸イオンになるので臭
気１発火などの二次公害をおこすおそれがない。■ Hydrogen sulfide decomposes into sulfate ions, so there is no risk of causing secondary pollution such as odor and ignition.
■ 運転管理が容易で、運転費が安い。■ Operation management is easy and operating costs are low.
【図面の簡単な説明】
第１図は、本発明の１例を示す脱硫装置である。
１・・・生物脱硫塔 ２・・・充填材層３・・・消
化ガス導入管 ４・・・空気供給管５・・・処理ガス排
出管 ６・・・散 水 管７・・・ｐＨ
メータ
８・・・酸素濃度計
９・・・補給水供給管
１０・・・ドレン循環用管
１１・・・ドレン排出管BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a desulfurization apparatus showing one example of the present invention. 1... Biological desulfurization tower 2... Filler layer 3... Digestion gas introduction pipe 4... Air supply pipe 5... Processed gas discharge pipe 6... Water sprinkling pipe 7... pH meter 8...Oxygen concentration meter 9...Makeup water supply pipe 10...Drain circulation pipe 11...Drain discharge pipe
Claims (1)
を有する生物脱硫塔と該塔に有機性廃棄物の嫌気性消化
処理によって得られる消化ガスを導入する手段と、前記
生物脱硫塔から処理ガスを排出する手段と、前記生物脱
硫塔に空気または酸素を供給する手段とを備えた消化ガ
スの脱硫装置。1. A biological desulfurization tower having a packing layer to which microorganisms that oxidize and decompose hydrogen sulfide are attached, a means for introducing into the tower a digestion gas obtained by anaerobic digestion of organic waste, and a treatment from the biological desulfurization tower. A digester gas desulfurization device comprising means for discharging gas and means for supplying air or oxygen to the biological desulfurization tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63174043A JPH0226615A (en) | 1988-07-12 | 1988-07-12 | Desulfurization apparatus for digester gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63174043A JPH0226615A (en) | 1988-07-12 | 1988-07-12 | Desulfurization apparatus for digester gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0226615A true JPH0226615A (en) | 1990-01-29 |
Family
ID=15971621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63174043A Pending JPH0226615A (en) | 1988-07-12 | 1988-07-12 | Desulfurization apparatus for digester gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226615A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04371213A (en) * | 1991-06-19 | 1992-12-24 | Ebara Infilco Co Ltd | Deodorizing method for malodorous gas containing hydrogen sulfide of high concentration |
| JPH04371214A (en) * | 1991-06-19 | 1992-12-24 | Kyushu Electric Power Co Inc | Equipment for treating geothermal power plant waste gas and equipment for preventing silica scale generation |
| JPH11262793A (en) * | 1998-03-18 | 1999-09-28 | National Institute Of Animal Industry | Post-treatment apparatus for anaerobic sewage treatment |
| JP2003305328A (en) * | 2001-11-02 | 2003-10-28 | Jfe Engineering Kk | Desulfurization equipment for digestion gas and desulfurization method |
| KR20040026552A (en) * | 2002-09-25 | 2004-03-31 | 주식회사 풍전 | Biogas treatment method |
| JP2004525478A (en) * | 2000-03-02 | 2004-08-19 | 株式会社荏原製作所 | Fuel cell power generation method and fuel cell power generation system |
| JP2005058841A (en) * | 2003-08-20 | 2005-03-10 | Mitsui Eng & Shipbuild Co Ltd | Desulfurization apparatus and desulfurization method |
| WO2009084405A1 (en) * | 2007-12-27 | 2009-07-09 | Kabushiki Kaisha Toshiba | Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment |
| WO2009090833A1 (en) * | 2008-01-16 | 2009-07-23 | Kabushiki Kaisha Toshiba | Biological desulfurization apparatus |
| JP2009299048A (en) * | 2008-05-13 | 2009-12-24 | Nippon Sharyo Seizo Kaisha Ltd | Method and apparatus for desulfurizing fuel gas |
| JP2010215735A (en) * | 2009-03-13 | 2010-09-30 | Yanmar Co Ltd | Desulfurizer |
| JP2012183480A (en) * | 2011-03-04 | 2012-09-27 | Yanmar Co Ltd | Purification system |
| JP2015116514A (en) * | 2013-12-17 | 2015-06-25 | 荏原実業株式会社 | Device and method for biological desulfurization |
| JP2022045865A (en) * | 2020-09-09 | 2022-03-22 | 株式会社一芯 | Deodorization device and deodorization method |
| WO2024058049A1 (en) * | 2022-09-15 | 2024-03-21 | 三菱造船株式会社 | Scrubber and gas treatment method in scrubber |
-
1988
- 1988-07-12 JP JP63174043A patent/JPH0226615A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04371213A (en) * | 1991-06-19 | 1992-12-24 | Ebara Infilco Co Ltd | Deodorizing method for malodorous gas containing hydrogen sulfide of high concentration |
| JPH04371214A (en) * | 1991-06-19 | 1992-12-24 | Kyushu Electric Power Co Inc | Equipment for treating geothermal power plant waste gas and equipment for preventing silica scale generation |
| JPH11262793A (en) * | 1998-03-18 | 1999-09-28 | National Institute Of Animal Industry | Post-treatment apparatus for anaerobic sewage treatment |
| JP2004525478A (en) * | 2000-03-02 | 2004-08-19 | 株式会社荏原製作所 | Fuel cell power generation method and fuel cell power generation system |
| JP2003305328A (en) * | 2001-11-02 | 2003-10-28 | Jfe Engineering Kk | Desulfurization equipment for digestion gas and desulfurization method |
| KR20040026552A (en) * | 2002-09-25 | 2004-03-31 | 주식회사 풍전 | Biogas treatment method |
| JP2005058841A (en) * | 2003-08-20 | 2005-03-10 | Mitsui Eng & Shipbuild Co Ltd | Desulfurization apparatus and desulfurization method |
| JP2009154131A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Corp | Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment |
| WO2009084405A1 (en) * | 2007-12-27 | 2009-07-09 | Kabushiki Kaisha Toshiba | Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment |
| US8163179B2 (en) | 2007-12-27 | 2012-04-24 | Kabushiki Kaisha Toshiba | Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment |
| WO2009090833A1 (en) * | 2008-01-16 | 2009-07-23 | Kabushiki Kaisha Toshiba | Biological desulfurization apparatus |
| JP2009167300A (en) * | 2008-01-16 | 2009-07-30 | Toshiba Corp | Biological desulfurization apparatus and start-up method thereof |
| JP2009299048A (en) * | 2008-05-13 | 2009-12-24 | Nippon Sharyo Seizo Kaisha Ltd | Method and apparatus for desulfurizing fuel gas |
| JP2010215735A (en) * | 2009-03-13 | 2010-09-30 | Yanmar Co Ltd | Desulfurizer |
| JP2012183480A (en) * | 2011-03-04 | 2012-09-27 | Yanmar Co Ltd | Purification system |
| JP2015116514A (en) * | 2013-12-17 | 2015-06-25 | 荏原実業株式会社 | Device and method for biological desulfurization |
| JP2022045865A (en) * | 2020-09-09 | 2022-03-22 | 株式会社一芯 | Deodorization device and deodorization method |
| WO2024058049A1 (en) * | 2022-09-15 | 2024-03-21 | 三菱造船株式会社 | Scrubber and gas treatment method in scrubber |
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