JPH1099641A - Desulfurization of digestion gas and desulfurizing device - Google Patents
Desulfurization of digestion gas and desulfurizing deviceInfo
- Publication number
- JPH1099641A JPH1099641A JP8274258A JP27425896A JPH1099641A JP H1099641 A JPH1099641 A JP H1099641A JP 8274258 A JP8274258 A JP 8274258A JP 27425896 A JP27425896 A JP 27425896A JP H1099641 A JPH1099641 A JP H1099641A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- sulfur
- carbon layer
- activated carbon
- active carbon
- 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
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 9
- 238000006477 desulfuration reaction Methods 0.000 title claims description 15
- 230000023556 desulfurization Effects 0.000 title claims description 15
- 230000029087 digestion Effects 0.000 title abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 15
- 239000011593 sulfur Substances 0.000 claims abstract description 15
- 241000894006 Bacteria Species 0.000 claims abstract description 12
- 150000003464 sulfur compounds Chemical class 0.000 claims abstract description 4
- 230000001079 digestive effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 51
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 abstract description 14
- 239000001301 oxygen Substances 0.000 abstract description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011148 porous material Substances 0.000 abstract description 6
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 238000000855 fermentation Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 230000000274 adsorptive effect Effects 0.000 abstract 2
- 230000004151 fermentation Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 244000177578 Bacterium linens Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000191368 Chlorobi Species 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- AURROVOEOKOHQK-UHFFFAOYSA-M sodium;1,4-dioxonaphthalene-2-sulfonate Chemical compound [Na+].C1=CC=C2C(=O)C(S(=O)(=O)[O-])=CC(=O)C2=C1 AURROVOEOKOHQK-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、消化ガスの脱硫方
法および脱硫装置に関する。The present invention relates to a method and an apparatus for desulfurizing digestive gas.
【０００２】[0002]
【従来技術】消化ガスは、し尿から発生するものから有
機物の嫌気性発酵により発生するものから、いろいろの
ものがあり、一般につぎのような組成を有している。2. Description of the Related Art Digestion gases include various types, from those generated from night soil and those generated by anaerobic fermentation of organic substances, and generally have the following composition.
【０００３】[0003]
【表１】 [Table 1]
【０００４】このように消化ガス中には可燃性ガスであ
るメタンを多量に含有しているので、このガス中の硫化
水素を酸化脱硫するために、安易に酸素ガスや空気を吹
き込むと、系は爆気を形成し極めて危険である。そのた
め消化ガス中には酸素ガスや空気を吹き込むことはでき
ず、消化ガスの脱硫には非常に困難を伴う。Since the digestive gas contains a large amount of methane, which is a combustible gas, in order to oxidize and desulfurize hydrogen sulfide in this gas, if oxygen gas or air is blown easily, the Creates explosive gas and is extremely dangerous. Therefore, oxygen gas or air cannot be blown into the digestive gas, and it is very difficult to desulfurize the digestive gas.
【０００５】そのため、従来消化ガスの脱硫方法として
は、水やアルカリ水溶液による吸収法、ナフトキノンス
ルホン酸ナトリウム溶液による湿式法（針生昭一：下水
道協会誌、５．５１、１９６８）や酸化鉄を用いる吸着
法（日本ガス協会：オイルガス編、都市ガス工業、４５
４、１９７０）がある。しかし、これらの方法はランニ
ングコストが高いばかりでなく、酸化鉄のような吸着剤
の取出しの際、発熱や発火の危険性があり、またこの吸
着剤廃棄物の処理がやっかいな問題である。[0005] Therefore, as a conventional method for desulfurizing a digestive gas, an absorption method using water or an alkaline aqueous solution, a wet method using a sodium naphthoquinone sulfonate solution (Shoichi Haryu: Sewerage Association, 5.51, 1968) or an adsorption method using iron oxide is used. Law (Japan Gas Association: Oil Gas Edition, City Gas Industry, 45
4, 1970). However, these methods not only have a high running cost, but also have a risk of generating heat or catching fire when an adsorbent such as iron oxide is taken out, and the treatment of this adsorbent waste is troublesome.
【０００６】そこで、本発明者等は、従来の水やアルカ
リ水溶液による吸収法（湿式法）における処理廃水たれ
流しや装置へのいおう付着の問題点、乾式法における脱
硫剤の発熱・発火の危険といった問題点を解消し、安全
かつ無公害の脱硫技術を提供することを目的として、嫌
気条件下、光と紅色いおう細菌および／または緑色いお
う細菌とを利用して硫化水素を分解することを特徴とす
る脱硫処理方法および紅色いおう細菌および／または緑
色いおう細菌を担持したバイオキャリア層を有する脱硫
槽および前記脱硫槽内のバイオキャリアに光を供給する
ための照明手段とを有することを特徴とする脱硫処理装
置を提案した。しかしながら、この技術においては、処
理液に光を当てるという工業的にはかなり難かしい操作
を必要としている。Therefore, the inventors of the present invention have considered the problems of drainage of treated wastewater and adhesion of sulfur to an apparatus in a conventional absorption method (wet method) using water or an alkaline aqueous solution, and the danger of heat generation and ignition of a desulfurizing agent in a dry method. Hydrogen sulfide is decomposed under anaerobic conditions using red and / or green sulfur bacteria under anaerobic conditions to solve the problems and provide safe and pollution-free desulfurization technology. A desulfurization treatment method, a desulfurization tank having a biocarrier layer carrying red and / or green sulfur bacteria, and lighting means for supplying light to the biocarriers in the desulfurization tank. A processing device was proposed. However, this technique requires an industrially difficult operation of irradiating the processing liquid with light.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、従来の湿式
法における処理廃水たれ流しや装置へのいおう付着の問
題点、乾式法における脱硫剤の発熱・発火の危険といっ
た問題点を解消し、安全かつ無公害であり、そのうえ処
理効率の高い脱硫技術を提供することを目的とするもの
である。SUMMARY OF THE INVENTION The present invention solves the problems of drainage of treated wastewater and adhesion of sulfur to equipment in the conventional wet method, and the danger of heat and ignition of the desulfurizing agent in the dry method. Another object of the present invention is to provide a desulfurization technology that is pollution-free and has high treatment efficiency.
【０００８】[0008]
【課題を解決するための手段】本発明者等は、乾燥した
活性炭は酸素を吸着しないのに較べて湿潤活性炭は酸素
をよく吸着する点に着目し、活性汚泥などのなかに存在
するいおう酸化細菌を湿潤活性炭に担持させた層中に消
化ガスを通すことにより、消化ガスを脱硫することに成
功したものである。The present inventors have noticed that dry activated carbon does not adsorb oxygen, whereas wet activated carbon adsorbs oxygen well. The digestion gas was successfully desulfurized by passing the digestion gas through a layer in which the bacteria were carried on moist activated carbon.
【０００９】本発明の１つは、好気性いおう酸化細菌を
担持した酸素吸着湿潤活性炭層に、消化ガスを導入する
ことにより、ガス中のいおう化合物を除去することを特
徴とする消化ガスの脱硫方法に関する。[0009] One aspect of the present invention is to desulfurize a digestive gas by introducing a digestive gas into an oxygen-adsorbed wet activated carbon layer carrying aerobic sulfur-oxidizing bacteria, thereby removing a sulfur compound in the gas. About the method.
【００１０】本発明の他の１つは、 （Ａ）好気性いおう酸化細菌を担持した酸素吸着湿潤
活性炭層、その上部に設けられた散水器、塔上部に
設けられた処理済ガス排出口、前記酸素吸着湿潤活性
炭層の下方に設けられたいおう化合物含有ガスの導入口
および前記酸素吸着湿潤活性炭層の下方に設けられた
排水口を有する脱硫塔 （Ｂ）前記脱硫塔に消化ガスを導入するための手段 （Ｃ）前記散水器より水を間歇的に供給して前記活性炭
層に析出したいおうおよびその酸化物を洗浄する手段 とを設けたことを特徴とする消化ガスの脱硫装置に関す
る。Another aspect of the present invention is: (A) an oxygen-adsorbed wet activated carbon layer carrying aerobic sulfur-oxidizing bacteria, a water sprinkler provided above the activated carbon layer, a treated gas outlet provided above the tower, A desulfurization tower having a sulfur compound-containing gas inlet provided below the oxygen-adsorbing wet activated carbon layer and a drainage port provided below the oxygen-adsorbing wet activated carbon layer. (B) Introducing digestive gas into the desulfurization tower. (C) A means for intermittently supplying water from the sprinkler to wash the sulfur and oxides thereof deposited on the activated carbon layer and a means for desulfurizing a digestion gas.
【００１１】活性炭は、それに水分が水きりした状態ま
で担持されたとき（飽和湿潤状態という）が最も酸素を
吸着し、担持する水分が少なくなるほど酸素吸着量が減
少する。したがって、できるだけ飽和湿潤状態を保って
処理すれば、活性炭層は酸素リッチな状態を維持でき
る。一方、湿潤活性炭はメタンや炭酸ガスはほとんど吸
着しないという特性を持っているので、本発明はこの特
性を有効利用するものである。Activated carbon adsorbs oxygen the most when it is carried to the point where the water is drained (referred to as a saturated wet state), and the amount of adsorbed oxygen decreases as the amount of water carried decreases. Therefore, if the treatment is performed while maintaining the saturated wet state as much as possible, the activated carbon layer can be maintained in an oxygen-rich state. On the other hand, since wet activated carbon has a characteristic that methane and carbon dioxide are hardly adsorbed, the present invention makes effective use of this characteristic.
【００１２】消化ガス中のＨ2Ｓは、好気性いおう酸化
細菌を担持した酸素吸着活性炭層において酸化され、い
おうまたはその酸化物（硫酸を含む）となり、活性炭層
において析出する。このため、一定時間経過後には散水
により析出物を除去する必要がある。散水中あるいは水
抜き中においても消化ガスの導入を止める必要はなく、
散水中または水抜き中においても脱硫は進行する。[0012] H 2 S in the digested gas is oxidized in the oxygen-adsorbed activated carbon layer carrying the aerobic sulfur-oxidizing bacteria to become sulfur or its oxide (including sulfuric acid) and precipitates in the activated carbon layer. For this reason, it is necessary to remove the precipitate by spraying water after a certain time has elapsed. It is not necessary to stop the introduction of digestive gas during watering or draining,
Desulfurization proceeds even during sprinkling or draining.
【００１３】前記好気性いおう酸化細菌は、一般に活性
汚泥中に含まれているので、活性汚泥含有水を活性炭層
上に散水してやれば、活性炭層に好気性いおう酸化細菌
を担持させることができる。したがって、運転開始条件
を整えるためには、活性汚泥含有水を活性炭層上方より
散水しつつ、下方から空気を吹き込むことにより活性炭
層を飽和湿潤状態としかつ充分な酸素吸着状態にするこ
とができる。一度消化ガスの導入を開始した後は、酸素
ガスや空気の吹込みは許されないが、消化ガス中には
０．０１〜０．８％（ｖｏｌ／ｖｏｌ）程度の酸素が含
まれており、一方Ｈ2Ｓの含有量も０．０２〜０．７％
（ｖｏｌ／ｖｏｌ）程度であるため、Ｈ2Ｓをいおうに
酸化する程度の酸素は消化ガス中の酸素が、前記活性炭
層の酸素を補給する程度で充分である。Since the aerobic sulfur oxidizing bacteria are generally contained in activated sludge, if activated sludge-containing water is sprayed on the activated carbon layer, the activated carbon layer can carry the aerobic sulfur oxidizing bacteria. Therefore, in order to adjust the operation start conditions, the activated carbon layer can be brought into a saturated wet state and a sufficient oxygen adsorption state by blowing air from below while spraying activated sludge-containing water from above the activated carbon layer. Once the introduction of digestive gas is started, oxygen gas or air is not allowed to be blown, but the digestive gas contains about 0.01 to 0.8% (vol / vol) oxygen, On the other hand, the content of H 2 S is also 0.02 to 0.7%.
(Vol / vol), it is sufficient that the oxygen in the digested gas replenishes the oxygen in the activated carbon layer with enough oxygen to oxidize H 2 S.
【００１４】本発明に使用する活性炭については格別の
制限はない。細孔の形状は、ボトル型（びん型）のもの
が好ましく、細孔の入口径は３〜４Åのものが好まし
い。または、活性炭の粒度範囲は一般に４〜２００メッ
シュ程度で、平均粒径は、１〜１０ｍｍ程度のものを使
用することができ、その比表面積は８００〜１５００ｍ
2／ｇ（Ｎ2ＢＥＴ法）のものが使用される。There is no particular limitation on the activated carbon used in the present invention. The shape of the pore is preferably a bottle type (bottle type), and the entrance diameter of the pore is preferably 3 to 4 mm. Alternatively, activated carbon generally has a particle size range of about 4 to 200 mesh, an average particle size of about 1 to 10 mm, and a specific surface area of 800 to 1500 m.
2 / g (N 2 BET method) is used.
【００１５】本発明における活性炭表面近傍における酸
素濃度は１〜２０％（ｖｏｌ／ｖｏｌ）程度に達してい
るものと推定され、消化ガス中に含まれる酸素濃度が
０．０１〜０．８０％（ｖｏｌ／ｖｏｌ）であることか
らみると、１００〜２００倍になっていることは驚くべ
きことである。The oxygen concentration in the vicinity of the activated carbon surface in the present invention is estimated to have reached about 1 to 20% (vol / vol), and the oxygen concentration in the digested gas is 0.01 to 0.80% (vol / vol). (vol / vol), it is surprising that the ratio is increased by 100 to 200 times.
【００１６】消化ガスを連続的に前記活性炭層中を流す
ことにより活性炭層中の水分の飽和状態が失われるので
はないかという点については、消化ガスは発酵槽から発
生するガスであるため、通常水分が飽和された状態で含
有されているので、ほとんど心配はない。もし、必要で
あれば、消化ガスを水中をバブリングさせて通過させて
やればよい。As to whether the saturated state of water in the activated carbon layer may be lost by continuously flowing the digested gas through the activated carbon layer, the digested gas is a gas generated from the fermenter. There is almost no worries because the water is usually contained in a saturated state. If necessary, the digestion gas may be passed through water by bubbling.
【００１７】消化ガスの流速は、前記活性炭層の厚みに
もよるが、通常ＳＶが５〜２０ｈ-1程度である。The flow rate of the digestion gas depends on the thickness of the activated carbon layer, but the SV is usually about 5 to 20 h -1 .
【００１８】[0018]
【実施の態様】脱硫槽１１のなかには、細孔形状がボト
ル型で細孔入口径が４Åで、粒径が６メッシュの活性炭
を充填した活性炭層を設け、これにまず、活性汚泥水
（活性汚泥濃度ＭＬＳＡ３０００ｐｐｍ）を散布しなが
ら、空気を吹き込み、１日運転したのち、空気の吹き込
みを止め、好気性いおう酸化細菌を担持した酸素吸着湿
潤活性炭層１を形成する。ついで有機物の嫌気性発酵に
より発生した下記組成の消化ガスを消化ガス導入ライン
４よりＳＶ＝１０ｈ-1の割合で導入する。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a desulfurization tank 11, an activated carbon layer filled with activated carbon having a pore shape of a bottle, a pore entrance diameter of 4 mm, and a particle size of 6 mesh is provided. After spraying air while spraying sludge concentration (3000 ppm MLSA), the operation is stopped for one day, and then the blowing of air is stopped to form an oxygen-adsorbing wet activated carbon layer 1 carrying aerobic sulfur-oxidizing bacteria. Next, digestion gas having the following composition generated by anaerobic fermentation of organic matter is introduced from the digestion gas introduction line 4 at a ratio of SV = 10 h -1 .
【００１９】[0019]
【表２】 （注）水分はこれとは別に普通飽和状態で含有されてい
る。[Table 2] (Note) Water is usually contained in a saturated state separately.
【００２０】消化ガス導入開始から３０分経過後、水槽
７より散水ライン３を通してポンプ１２の力で散水器２
より水を散布し、５分間前記活性炭層１を洗浄する。洗
浄中も消化ガスの導入は続ける。水洗によりいおうやそ
の他の活性炭層付着物は、層から離れ、排水ライン６よ
り脱硫槽１１の外に排出される。一方、処理されたガス
はライン５より取り出される。取り出されたガスはいお
う成分を含まず、約６４％のメタンを含有するガスであ
るため、有機物を発酵させるための発酵槽を加温するた
めのエネルギー源として使用する。なお、前記活性炭層
付着物は水槽７の表面に浮遊しているので、集塵器８を
通して放水ライン９より排水することにより活性炭層付
着物を集める。水の補給は給水ライン１０より行う。Thirty minutes after the start of the digestion gas introduction, the water sprayer 2 is supplied from the water tank 7 through the water spray line 3 by the power of the pump 12.
More water is sprinkled, and the activated carbon layer 1 is washed for 5 minutes. The introduction of digestive gas is continued during the cleaning. Sulfur and other deposits on the activated carbon layer are separated from the layer by washing with water and discharged from the desulfurization tank 11 through the drain line 6. On the other hand, the processed gas is taken out from the line 5. Since the extracted gas contains no sulfur component and contains about 64% methane, it is used as an energy source for heating a fermenter for fermenting organic matter. Since the activated carbon layer deposit is floating on the surface of the water tank 7, the activated carbon layer deposit is collected by draining from the water discharge line 9 through the dust collector 8. Water is supplied from the water supply line 10.
【００２１】[0021]
【効果】本発明により、危険な消化ガスの脱硫を安全
に、かつ簡単に達成できる。また、本発明で処理された
ガスはメタンを主成分とする良質の可燃性ガスであるた
め、有機物の発酵槽を加温するためのエネルギー源など
として有効に使用できる。According to the present invention, the desulfurization of dangerous digestive gas can be safely and easily achieved. Further, the gas treated in the present invention is a high-quality combustible gas containing methane as a main component, and thus can be effectively used as an energy source for heating an organic fermenter.
【図１】本発明の具体的な実施の態様を示すフローシー
トである。FIG. 1 is a flow sheet showing a specific embodiment of the present invention.
１ いおう酸化細菌を担持した湿潤活性炭層 ２ 散水器 ３ 散水ライン ４ 消化ガス導入ライン ５ 処理されたガスの取出ライン ６ 排水ライン ７ 水槽 ８ 集塵器 ９ 放水ライン １０ 給水ライン １１ 脱硫槽 １２ ポンプ Reference Signs List 1 wet activated carbon layer carrying sulfur oxidizing bacteria 2 water sprinkler 3 water sprinkling line 4 digestion gas introduction line 5 treated gas extraction line 6 drain line 7 water tank 8 dust collector 9 water discharge line 10 water supply line 11 desulfurization tank 12 pump
Claims (2)
着湿潤活性炭層に、消化ガスを導入することにより、ガ
ス中のいおう化合物を除去することを特徴とする消化ガ
スの脱硫方法。1. A method for desulfurizing a digestive gas, comprising introducing a digestive gas into an oxygen-adsorbing wet activated carbon layer carrying aerobic sulfur-oxidizing bacteria to remove a sulfur compound in the gas.
酸素吸着湿潤活性炭層、その上部に設けられた散水
器、塔上部に設けられた処理済ガス排出口、前記酸
素吸着湿潤活性炭層の下方に設けられたいおう化合物含
有ガスの導入口および前記酸素吸着湿潤活性炭層の下
方に設けられた排水口を有する脱硫塔 （Ｂ）前記脱硫塔に消化ガスを導入するための手段 （Ｃ）前記散水器より水を間歇的に供給して前記活性炭
層に析出したいおうおよびその酸化物を洗浄する手段 とを設けたことを特徴とする消化ガスの脱硫装置。(A) an oxygen-adsorbing wet activated carbon layer carrying aerobic sulfur-oxidizing bacteria, a sprinkler provided on the upper portion thereof, a treated gas outlet provided on an upper portion of the tower, and an oxygen-adsorbing wet activated carbon layer formed on the upper portion of the tower. A desulfurization tower having a sulfur-containing compound-containing gas inlet port provided below and a drain port provided below the oxygen-adsorbing wet activated carbon layer; (B) means for introducing digestive gas into the desulfurization tower; Means for intermittently supplying water from a water sprinkler to wash out the sulfur and oxides thereof deposited on the activated carbon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8274258A JPH1099641A (en) | 1996-09-25 | 1996-09-25 | Desulfurization of digestion gas and desulfurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8274258A JPH1099641A (en) | 1996-09-25 | 1996-09-25 | Desulfurization of digestion gas and desulfurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1099641A true JPH1099641A (en) | 1998-04-21 |
Family
ID=17539188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8274258A Pending JPH1099641A (en) | 1996-09-25 | 1996-09-25 | Desulfurization of digestion gas and desulfurizing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1099641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079051A (en) * | 2000-09-08 | 2002-03-19 | Kurita Water Ind Ltd | Method for deodorizing hydrogen sulfide containing gas |
| JP2006037074A (en) * | 2004-06-04 | 2006-02-09 | Applikations- & Technikzentrum Fuer Energieverfahrens- Umwelt- & Stroemungstechnik | Method for removing sulfur compound from biogas |
-
1996
- 1996-09-25 JP JP8274258A patent/JPH1099641A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079051A (en) * | 2000-09-08 | 2002-03-19 | Kurita Water Ind Ltd | Method for deodorizing hydrogen sulfide containing gas |
| JP2006037074A (en) * | 2004-06-04 | 2006-02-09 | Applikations- & Technikzentrum Fuer Energieverfahrens- Umwelt- & Stroemungstechnik | Method for removing sulfur compound from biogas |
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