JP2750588B2 - Deodorizing device - Google Patents
Deodorizing deviceInfo
- Publication number
- JP2750588B2 JP2750588B2 JP63301400A JP30140088A JP2750588B2 JP 2750588 B2 JP2750588 B2 JP 2750588B2 JP 63301400 A JP63301400 A JP 63301400A JP 30140088 A JP30140088 A JP 30140088A JP 2750588 B2 JP2750588 B2 JP 2750588B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- gas
- tower
- pipe
- circulation pipe
- 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.)
- Expired - Fee Related
Links
- 230000001877 deodorizing effect Effects 0.000 title claims description 32
- 239000010802 sludge Substances 0.000 claims description 130
- 239000003864 humus Substances 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000003595 mist Substances 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 4
- 238000004332 deodorization Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 71
- 239000000126 substance Substances 0.000 description 14
- 239000002253 acid Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 8
- 239000003513 alkali Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004868 gas analysis Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241001478887 unidentified soil bacteria Species 0.000 description 5
- 239000002781 deodorant agent Substances 0.000 description 4
- 239000002207 metabolite Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 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
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、主として屎尿処理設備や下水処理施設に
おいて発生する窒素化合物を含む臭気ガス、硫黄化合物
を含む臭気ガス並びに脂肪酸類を含む臭気ガスなどから
悪臭を除去するための脱臭装置に関するものである。The present invention relates to an odor gas containing nitrogen compounds, an odor gas containing sulfur compounds, an odor gas containing fatty acids, and the like, which are mainly generated in human waste treatment facilities and sewage treatment facilities. The present invention relates to a deodorizing device for removing a bad odor from food.
［従来の技術］ 近年、公害防止の１つとして、上記処理設備や工業施
設において発生する臭気ガスの脱臭が問題になってお
り、これに対応して種々の脱臭装置が開発されている。[Prior Art] In recent years, as one of pollution prevention methods, deodorization of odorous gas generated in the above-mentioned processing facilities and industrial facilities has become a problem, and various deodorizing apparatuses have been developed in response thereto.
この種の脱臭装置として、従来、充填塔を利用して水
洗浄を行うもの、また酸、アルカリを利用した薬液吸収
方式によるものがある。その他、直接燃焼方式、触媒酸
化方式、オゾン酸化方式、マスキング方式などの脱臭装
置がある。第３図は薬液洗浄方式による脱臭装置を示す
もので、酸洗浄塔ａとアルカリ洗浄塔ｂと活性炭吸着塔
ｃとよりなり、酸洗浄塔ａとアルカリ洗浄塔ｂの内部の
中央附近には、それぞれ充填材ｅが設けられている。前
記酸洗浄塔ａでは硫酸または塩酸が使用され、ポンプPa
によって酸ｓを酸洗浄塔ａの底部から吸引し充填材ｅの
上部から噴射させるようにしてある。またアルカリ洗浄
塔ｂでは、苛性ソーダ、又は苛性ソーダと次亜塩素酸ソ
ーダが使用され、ポンプPbによってアルカリ液ｒをアル
カリ洗浄塔ｂの底部から吸引し充填材ｅの上部から噴射
させるようにしてある。活性炭吸着塔ｃには活性炭が充
填されている。As this type of deodorizing device, there is a device that performs water washing using a packed tower, and a device that absorbs a chemical solution using an acid or an alkali. In addition, there are deodorizing devices such as a direct combustion system, a catalytic oxidation system, an ozone oxidation system, and a masking system. FIG. 3 shows a deodorizing apparatus using a chemical cleaning method, which comprises an acid cleaning tower a, an alkali cleaning tower b, and an activated carbon adsorption tower c. In the vicinity of the center inside the acid cleaning tower a and the alkali cleaning tower b, Each is provided with a filler e. In the acid washing tower a, sulfuric acid or hydrochloric acid is used, and a pump Pa
Accordingly, the acid s is sucked from the bottom of the acid washing tower a and injected from the top of the filler e. In the alkaline washing tower b, caustic soda or caustic soda and sodium hypochlorite are used, and the alkaline liquid r is sucked from the bottom of the alkaline washing tower b by the pump Pb and injected from above the filler e. The activated carbon adsorption tower c is filled with activated carbon.
この脱臭装置によれば、まず臭気ガスｄを酸洗浄塔ａ
の充填材ｅの下方に導入する。充填材ｅの下方に導入さ
れた臭気ガスｄは充填材ｅを通過中に酸洗浄され、ミス
トセパレータｆを経由して酸洗浄塔ａの上部から次のア
ルカリ洗浄塔ｂに導入される。ここでガスｄはアルカリ
洗浄塔ｂの充填材ｅの下方に導入され、充填材ｅを通過
中にアルカリ洗浄され、ミストセパレータｆを経由して
アルカリ洗浄塔ａの上部から活性炭吸着塔ｃに送られ
る。こうして臭気ガスｄ中の臭成分は酸およびアルカリ
洗浄により除去され、最終的に活性炭に吸着され完全に
脱臭されて外部に放出ｇされる。According to this deodorizing apparatus, first, the odor gas d is supplied to the acid cleaning tower a.
Is introduced below the filler e. The odor gas d introduced below the filler e is washed with acid while passing through the filler e, and is introduced into the next alkaline washing tower b from the upper part of the acid washing tower a via the mist separator f. Here, the gas d is introduced below the filler e in the alkaline washing tower b, is washed with alkali while passing through the filler e, and is sent from the upper part of the alkali washing tower a to the activated carbon adsorption tower c via the mist separator f. Can be In this way, the odor component in the odor gas d is removed by washing with an acid and an alkali, and finally adsorbed on activated carbon to be completely deodorized and released to the outside.
その他の先行技術として、腐植物を利用した脱臭剤と
して特開昭60−34732号公報および特開昭60−145145号
公報に記載の発明がある。前者は、腐植物と活性化され
た珪酸分などの無機物を多量に含む物質を混合した脱臭
剤に関するもので、後者は前者を水溶液に溶解した液状
の脱臭剤に関するものである。As other prior arts, there are the inventions described in JP-A-60-34732 and JP-A-60-145145 as deodorants utilizing humic substances. The former relates to a deodorant obtained by mixing a substance containing a large amount of inorganic substances such as humic substances and activated silicic acid, and the latter relates to a liquid deodorant obtained by dissolving the former in an aqueous solution.
［発明が解決しようとする課題］ 上記した水洗浄方式は脱臭効果が十分でないという欠
点があり、薬液吸収方式、直接燃焼方式においては、脱
臭効果を高効率に維持するために薬品および燃料の使用
量を多く必要とし、更に、第３図に示すような薬液洗浄
の場合、酸およびアルカリを使用するため耐食性の強い
材質の処理塔および充填剤が必要であり、また薬液の一
部は排出されるので、その排出液が二次公害を起こすお
それがある。また、燃焼方式は脱臭効果においては優れ
ているが、燃焼後に窒素酸化物、硫黄酸化物、塩素を含
む塩素化合物などが生じるので、二次公害のおそれがあ
る。[Problems to be Solved by the Invention] The above-mentioned water cleaning system has a disadvantage that the deodorizing effect is not sufficient. In the chemical solution absorption system and the direct combustion system, the use of chemicals and fuel is required to maintain the deodorizing effect with high efficiency. In the case of chemical cleaning as shown in FIG. 3, a large amount is required. Further, since an acid and an alkali are used, a treatment tower and a filler of a material having high corrosion resistance are required, and a part of the chemical is discharged. Therefore, the discharged liquid may cause secondary pollution. Although the combustion method is excellent in deodorizing effect, nitrogen oxides, sulfur oxides, chlorine compounds containing chlorine and the like are generated after combustion, and thus there is a risk of secondary pollution.
また、上記公開公報に記載の発明は、脱臭剤に関する
ものであるので、例えば、臭気ガスをどのようにして腐
植物に接触させ、脱臭するかなどの具体的な手段につい
ては全く開示されていない。Further, since the invention described in the above-mentioned publication relates to a deodorant, for example, no specific means such as how to contact an odor gas with a humus and deodorize is disclosed at all. .
この発明は上記に鑑みなされたもので、活性化した汚
泥に臭気ガスを接触させてその臭成分を固定化し更に分
解して脱臭することにより、二次公害がなく、半永久的
に使用でき、ランニングコストの安い脱臭装置を提供す
ることを目的とする。The present invention has been made in view of the above, by contacting the activated sludge with an odor gas to fix the odor component and decompose and deodorize, so that there is no secondary pollution, semi-permanent use, and running An object is to provide a low-cost deodorizing device.
［課題を解決するための手段］ 上記した目的を達成するためにこの発明の脱臭装置
は、汚泥を貯留し、導入した臭気ガスを該汚泥に接触さ
せて脱臭するガス処理塔と、汚泥を蓄積した汚泥槽と、
腐植物が吸収されたリアクターとを備え、腐植物を含む
汚泥を媒介として脱臭する装置であって、前記ガス処理
塔と前記汚泥槽とを両槽間で汚泥が循環するように、ポ
ンプを介設した第１循環管によって接続し、前記汚泥槽
はポンプを介設した第２循環管によって前記リアクター
に接すると共に、汚泥槽の汚泥の一部をリアクター内に
取り込めるように第２循環管の一端を前記第１循環管の
途中に接続し、また前記第２循環管に開閉弁を介設する
と共に、汚泥槽内の汚泥の活性化作用が低減しないよう
に前記開閉弁を一定時間ごとに所定時間開放するように
している。Means for Solving the Problems In order to achieve the above object, a deodorizing apparatus of the present invention stores a sludge, contacts an introduced odor gas with the sludge, deodorizes the sludge, and accumulates the sludge. Sludge tank
An apparatus for deodorizing sludge containing humic substances, comprising a reactor in which humic substances are absorbed, wherein a sludge is circulated between the gas treatment tower and the sludge tank via a pump so that sludge circulates between the two tanks. The sludge tank is connected to the reactor by a second circulation pipe provided with a pump, and one end of a second circulation pipe is provided so that a part of the sludge in the sludge tank can be taken into the reactor. Is connected in the middle of the first circulation pipe, and an opening / closing valve is interposed in the second circulation pipe, and the opening / closing valve is set at predetermined intervals so that the activation of sludge in the sludge tank is not reduced. I open it for hours.
また請求項２記載のように、前記ガス処理塔の下部に
ガス導入口を設け、ガス処理塔内には臭気ガスと汚泥を
接触させるための多段の棚板を上下方向に間隔をあけて
配設し、各棚板には前記ガス導入口から導入される臭気
ガスが通過する多数の小孔を開設し、各棚板には相互に
位置をずらせて溢流管を垂直方向に取り付け、各溢流管
の上端部を、棚板上に供給される汚泥が一定量貯留され
一定量を超えた汚泥ｈが溢れて流下するように棚板の上
方に突出させ、各溢流管の下端部分は一段下の棚板に形
成した凹所内に挿入すると共に、最下段の棚板の溢流管
の下端をガス処理塔の底部付近まで垂下し、ガス処理塔
の頂部にガス放出用の臭突を連設し、この臭突の下方に
前記汚泥槽からの汚泥の供給管を配設し、この汚泥の供
給管の上方でガス処理塔内の上端部にミストセパレータ
を設け、このミストセパレータの上方に水洗浄用の導水
管を配設することが望ましい。Further, as set forth in claim 2, a gas inlet is provided at a lower portion of the gas treatment tower, and a multi-stage shelf for contacting odor gas and sludge is arranged in the gas treatment tower at an interval in the vertical direction. The shelves are provided with a number of small holes through which the odorous gas introduced from the gas inlet passes, and the shelves are vertically displaced from each other, and the overflow pipes are attached vertically. The upper end of the overflow pipe is protruded above the shelf plate so that the sludge supplied on the shelf plate is stored in a certain amount and the sludge h exceeding a certain amount overflows and flows down. Is inserted into the recess formed in the lower shelf, and the lower end of the overflow pipe of the lowermost shelf hangs down to near the bottom of the gas processing tower. A supply pipe for the sludge from the sludge tank is provided below the stack, and a gas treatment is performed above the supply pipe for the sludge. The mist separator is provided in the upper portion of the tower, it is desirable to dispose the water conduit for water wash above the mist separator.
［作用］ 上記の構成において、汚泥槽に汚泥が蓄積されてお
り、この汚泥槽には腐植物がリアクター内で前記汚泥を
活性化し、その活性化された汚泥がリアクターから適宜
汚泥槽内に供給される。リアクター内では、汚泥槽を経
由してガス処理塔に供給される汚泥が腐植物中の土壌菌
の繁殖により熟成し活性化される。逆にガス処理塔から
汚泥が汚泥槽に戻される。汚泥槽内には、処理施設から
新しい汚泥が供給され、更にその汚泥はリアクターへ送
られてリアクター内の腐植物と混合され、リアクター内
において汚泥は腐植物中に含まれている土壌菌の働きに
よって熟成し腐植活性化する。こうして腐植活性化され
た汚泥は、前記開閉弁が一定時間間隔で開放されること
により、リアクターから汚泥槽へ戻される。そして、汚
泥槽内の活性化した汚泥が、ポンプによって第１循環管
からガス処理塔内に供給される。なお、前記腐植物が、
汚泥と混合、接触し、汚泥中の土壌菌群が代謝産物を産
出する。その代謝産物は、好気性細菌、通気嫌気性細
菌、若しくは好気性細菌と通性嫌気性細菌からなる細菌
群の分秘物で、臭気除去成分を有する。活性化された汚
泥がガス処理塔内に貯留されており、ガス処理塔内に導
入される臭気ガスはその汚泥と接触し、ガス中の臭成分
と重縮合反応して、臭成分である揮発性物質の分子量を
増大させて揮発不能な状態に固定化し更に分解して、臭
成分の発散を防止することにより脱臭させるものであ
る。[Operation] In the above configuration, sludge is accumulated in the sludge tank. In this sludge tank, humus plants activate the sludge in the reactor, and the activated sludge is supplied from the reactor into the sludge tank as appropriate. Is done. In the reactor, the sludge supplied to the gas treatment tower via the sludge tank is aged and activated by the propagation of soil bacteria in the humus. Conversely, the sludge is returned from the gas treatment tower to the sludge tank. In the sludge tank, new sludge is supplied from the treatment facility, and the sludge is sent to the reactor and mixed with the humus in the reactor. In the reactor, the sludge acts as soil bacteria contained in the humus. Aging and humus activation. The sludge thus activated for humus is returned from the reactor to the sludge tank by opening the on-off valve at regular time intervals. The activated sludge in the sludge tank is supplied from the first circulation pipe into the gas treatment tower by the pump. In addition, the said humus,
It mixes with and contacts sludge, and soil bacteria in the sludge produce metabolites. The metabolite is an aerobic bacterium, an aerobically anaerobic bacterium, or a secretary of a bacterial group consisting of an aerobic bacterium and a facultative anaerobic bacterium, and has an odor removing component. The activated sludge is stored in the gas treatment tower, and the odor gas introduced into the gas treatment tower comes into contact with the sludge, undergoes a polycondensation reaction with the odor component in the gas, and volatilizes as the odor component. The odorant is deodorized by increasing the molecular weight of the toxic substance to immobilize it in a non-volatile state and further decomposing the substance to prevent odor components from being emitted.
また、請求項２記載の脱臭装置によれば、ガス処理塔
内に供給された汚泥は、まず最上段の棚板上に貯留さ
れ、溢れた汚泥は溢流管から２段目の棚板上に流入し棚
板に貯留されたのち、２段目の棚板を溢れた汚泥ｈは同
様に流下し、３段目の棚板上に貯留され、溢れた汚泥は
溢流管からガス処理塔の底部に溜まり、第１循環管を通
って汚泥槽に戻る。なお、定期的に導水管から洗浄水が
噴射され、ミストセパレータおよびガス処理塔内の洗浄
が行われる。According to the deodorizing device of the second aspect, the sludge supplied into the gas treatment tower is first stored on the uppermost shelf, and the overflowed sludge is stored on the second shelf from the overflow pipe. The sludge h that has flowed into the shelves and stored in the shelves, then flows down the second shelf in the same manner, is stored on the third shelves, and the overflowed sludge flows from the overflow pipe into the gas treatment tower. And returns to the sludge tank through the first circulation pipe. Cleaning water is periodically injected from the water pipe to clean the mist separator and the gas treatment tower.
［実施例］ 以下、この発明の脱臭装置の実施例を図面によって説
明する。[Embodiment] Hereinafter, an embodiment of a deodorization device of the present invention will be described with reference to the drawings.
第１図はこの発明の脱臭装置の全体を示す正面図、第
２図はガス処理塔の内部を示す拡大断面図である。FIG. 1 is a front view showing the entire deodorizing apparatus of the present invention, and FIG. 2 is an enlarged sectional view showing the inside of a gas processing tower.
腐植物ｉを含む活性化した汚泥ｈを媒介として脱臭す
る脱臭装置１は、第１図に示すようにガス処理塔（脱臭
塔とも呼ばれる）２と汚泥槽３とリアクター４とによっ
て構成されている。As shown in FIG. 1, a deodorizing apparatus 1 for deodorizing activated sludge h containing humus i is constituted by a gas treatment tower (also called a deodorization tower) 2, a sludge tank 3, and a reactor 4. .
ガス処理塔２の下部にガス導入口2aが設けられ、ガス
処理塔２内には、第２図に示すように臭気ガスと汚泥を
接触させるための多段の棚板５が上下方向に間隔をあけ
て配設されている。また、各棚板５（5a,5b,5c）には、
前記ガス導入口2aからブロワー（図示せず）により導入
される臭気ガスｄが通過する多数の小孔６が開設されて
いる。各棚板５には相互に位置をずらせて溢流管７が垂
直方向に取り付けられており、各溢流管７の上端部は、
棚板５上に供給される汚泥ｈが一定量貯留され一定量を
超えた汚泥ｈが溢れて流下するように、棚板５の上方に
突出させてあり、下端部分は、一段下の棚板５に形成し
た凹所５′内に挿入されている。最下段の棚板５の溢流
管７の下端は、ガス処理塔２の底部付近まで垂下されて
いる。A gas inlet 2a is provided at a lower portion of the gas processing tower 2, and a multi-stage shelf plate 5 for contacting odor gas with sludge is provided in the gas processing tower 2 at intervals in the vertical direction as shown in FIG. It is arranged open. Also, each shelf 5 (5a, 5b, 5c) has
A number of small holes 6 are formed through which the odor gas d introduced from the gas inlet 2a by a blower (not shown) passes. Overflow pipes 7 are vertically attached to the respective shelves 5 so as to be shifted from each other, and the upper end of each overflow pipe 7 is
The sludge h to be supplied onto the shelf 5 is stored in a certain amount, and is protruded above the shelf 5 so that the sludge h exceeding a certain amount overflows and flows down. 5 is inserted into a recess 5 '. The lower end of the overflow pipe 7 of the lowermost shelf 5 is suspended down to near the bottom of the gas treatment tower 2.
ガス処理塔２の頂部には、ガス放出用の臭突2bが連設
され、その臭突2bの下方に汚泥ｈの供給管2cが接続され
ている。なお、この供給管2cの出口側は散液式にしても
よい。A gas discharge odor stack 2b is connected to the top of the gas treatment tower 2, and a supply pipe 2c for sludge h is connected below the gas stack 2b. Note that the outlet side of the supply pipe 2c may be of a liquid spray type.
ガス処理塔２内の上端部には、ミストセパレータ13が
設けられ、そのミストセパレータ13の上方に水洗浄用の
導水管14が接続されている。A mist separator 13 is provided at an upper end in the gas treatment tower 2, and a water guide pipe 14 for water washing is connected above the mist separator 13.
ガス処理塔２の底部には、汚泥ｈの排出口2dが設けら
れ、この排出口2dは第１図のように汚泥槽３の底部に、
また汚泥槽３の底部は前記供給管2cにそれぞれ第１循環
管８により接続されている。第１循環管８には循環ポン
プ９が介設されており、この循環ポンプ９によって汚泥
槽３内の汚泥ｈがガス処理塔２に供給されると共に、ガ
ス処理塔２内の汚泥ｈが汚泥槽３に戻されるように、す
なわちガス処理塔２と汚泥槽３との間で汚泥ｈを循環さ
せるようになっている。An outlet 2d for sludge h is provided at the bottom of the gas treatment tower 2, and the outlet 2d is provided at the bottom of the sludge tank 3 as shown in FIG.
The bottom of the sludge tank 3 is connected to the supply pipe 2c by a first circulation pipe 8, respectively. A circulation pump 9 is interposed in the first circulation pipe 8. The circulation pump 9 supplies the sludge h in the sludge tank 3 to the gas treatment tower 2 and also removes the sludge h in the gas treatment tower 2 from the sludge h. The sludge h is circulated so as to be returned to the tank 3, that is, between the gas treatment tower 2 and the sludge tank 3.
また、前記汚泥槽３は第２循環管11によってリアクタ
ー４に接続されており、その第２循環管11にはポンプ10
が介設されている。リアクター４内には腐植物ｉが収容
されており、また汚泥槽３の汚泥ｈの一部をリアクター
４内に取り込めるように第２循環管11の一端が、前記第
１循環管８の途中に接続されている。なお、汚泥槽３か
らリアクター４内に取り込んだ汚泥ｈは、腐植物ｉと混
合されて腐植物活性化される。また、リアクター４から
汚泥槽３に至る循環管11には開閉弁12が介設されてお
り、汚泥槽３内の汚泥ｈの活性化作用が低減しないよう
に、一定時間（例えば６時間）ごとに開閉弁12が所定の
時間（例えば15分）開放され、リアクター４から腐植活
性化された汚泥ｈが汚泥槽３に供給される。更に、汚泥
槽３の上方に、処理施設（図示せず）からの汚泥の流入
管15が配備され、また汚泥槽３の上端部には、余剰の汚
泥ｈを処理施設（図示せず）に戻すための流出管16が接
続されている。The sludge tank 3 is connected to the reactor 4 by a second circulation pipe 11, and a pump 10 is connected to the second circulation pipe 11.
Is interposed. A humus i is contained in the reactor 4, and one end of a second circulation pipe 11 is provided in the middle of the first circulation pipe 8 so that a part of the sludge h of the sludge tank 3 can be taken into the reactor 4. It is connected. The sludge h taken into the reactor 4 from the sludge tank 3 is mixed with the humus i to activate the humus. Further, an on-off valve 12 is provided in a circulation pipe 11 extending from the reactor 4 to the sludge tank 3, so that the activation of the sludge h in the sludge tank 3 is not reduced, so that it is performed at regular intervals (for example, every 6 hours). The on-off valve 12 is opened for a predetermined time (for example, 15 minutes), and the humus-activated sludge h is supplied from the reactor 4 to the sludge tank 3. Further, a sludge inflow pipe 15 from a treatment facility (not shown) is provided above the sludge tank 3, and excess sludge h is supplied to a treatment facility (not shown) at the upper end of the sludge tank 3. An outflow pipe 16 for returning is connected.
次に、上記構成の実施例についてその作動状況を説明
する。Next, the operation of the embodiment having the above configuration will be described.
汚泥槽３内には、処理施設（図示せず）から新しい汚
泥ｈが供給され、更にその汚泥ｈは、リアクター４へ送
られてリアクター４内の腐植物ｉと混合する。リアクタ
ー４内において汚泥ｈは、腐植物ｉ中に含まれている土
壌菌の働きによって熟成し腐植活性化する。こうして腐
植活性化された汚泥ｈは、前記開閉弁12が一定時間間隔
で開放されることにより、リアクター４から汚泥槽３へ
戻される。そして、汚泥槽３内の活性化した汚泥ｈが、
循環ポンプ９によって循環管８及び供給管2cからガス処
理塔２内に供給される。ガス処理塔２内に供給された汚
泥ｈは、まず最上段の棚板5a上に貯留され、溢れた汚泥
ｈは溢流管７から２段目の棚板5b上に流入し棚板5bに貯
留される。棚板5bを溢れた汚泥ｈは同様に流下し、棚板
5c上に貯留され、溢れた汚泥ｈは溢流管７からガス処理
塔２の底部に溜まり、排出口2dから循環管８を通って汚
泥槽３に戻る。こうして汚泥ｈは、汚泥槽３とガス処理
塔２との間で循環される。Fresh sludge h is supplied into the sludge tank 3 from a treatment facility (not shown), and the sludge h is sent to the reactor 4 and mixed with the humus i in the reactor 4. In the reactor 4, the sludge h is aged and activated by the action of soil bacteria contained in the humus i. The sludge h thus activated for humus is returned from the reactor 4 to the sludge tank 3 by opening the on-off valve 12 at regular time intervals. And the activated sludge h in the sludge tank 3 is
The gas is supplied from the circulation pipe 9 and the supply pipe 2c into the gas treatment tower 2 by the circulation pump 9. The sludge h supplied into the gas treatment tower 2 is first stored on the uppermost shelf 5a, and the overflowing sludge h flows from the overflow pipe 7 onto the second shelf 5b, and flows into the shelf 5b. Will be stored. Sludge h overflowing the shelf 5b flows down similarly,
The sludge h that has been stored and overflowed on the bottom 5c is collected from the overflow pipe 7 at the bottom of the gas treatment tower 2 and returns to the sludge tank 3 through the circulation pipe 8 from the discharge port 2d. Thus, the sludge h is circulated between the sludge tank 3 and the gas treatment tower 2.
一方、ガス処理塔２においてガス導入口2aから、ブロ
ワー（図示せず）により臭気ガスｄが前記最下段の棚板
5cの下方に導入されると、臭気ガスｄは棚板５の小孔６
を通過して棚板5c,5b,5aの順に上昇し、この間に臭気ガ
スｄは各棚板5c,5b,5a上に貯留されている汚泥ｈと十分
に接触して脱臭された後、ミストセパレータ13を通って
臭突2bから排出される。なお、定期的に導水管14から洗
浄水が噴射され、ミストセパレータ13およびガス処理塔
２内の洗浄が行われる。On the other hand, in the gas processing tower 2, the odor gas d is blown out from the gas inlet 2 a by a blower (not shown).
When introduced below 5c, the odorous gas d
And rises in the order of the shelves 5c, 5b, 5a, and during this time, the odor gas d comes into sufficient contact with the sludge h stored on each of the shelves 5c, 5b, 5a and is deodorized. It is discharged from the stack 2b through the separator 13. Cleaning water is periodically sprayed from the water pipe 14 to clean the mist separator 13 and the gas treatment tower 2.
前記脱臭装置１では、上記したように腐植活性化した
汚泥ｈが脱臭媒介として用いられており、腐植物ｉを汚
泥ｈと混合させることにより汚泥ｈ中の土壌菌群が代謝
産物を産出する。この代謝産物は、前記したように好気
性細菌、通性嫌気性細菌、若しくは好気性細菌と通性嫌
気性細菌からなる細菌群の分秘物であって、臭気ガスｄ
中の臭成分を分解除去させるものである。このため、腐
植活性化した汚泥ｈが、臭気ガスｄ中の有機物からなる
臭成分と接触することにより重縮合反応を起こして高分
子化し、臭の主体である揮発性成分の分子量を増大させ
て揮発不能な状態に、その臭成分を固定化し更に分解し
て臭の発散を防止するものである。In the deodorizing device 1, the sludge h activated as described above is used as a deodorizing medium. By mixing the humus i with the sludge h, the soil bacteria in the sludge h produce metabolites. This metabolite is, as described above, an aerobic bacterium, a facultative anaerobic bacterium, or a secretion of a bacterial group consisting of an aerobic bacterium and a facultative anaerobic bacterium.
It decomposes and removes odor components in it. For this reason, the humus-activated sludge h contacts the odor component composed of organic substances in the odor gas d to cause a polycondensation reaction to polymerize, thereby increasing the molecular weight of the volatile component that is the main component of the odor. The odor component is immobilized in a non-volatilizable state and further decomposed to prevent odor from being emitted.
次に、上記した実施例の脱臭装置について、その脱臭
効果を確認するために行った実験結果を説明する。Next, the results of an experiment performed to confirm the deodorizing effect of the deodorizing device of the above-described embodiment will be described.
実験条件 処理ガス量 10m3/min 塔内ガス流速度 1.5m/sec 塔口径 0.38mφ 汚泥循環量 28/min 循環汚泥濃度 5000mg/ 実験開始後15日目に臭気分析を行った。その結果は、
次の通りであった。Odor analysis was performed on the experimental conditions the process gas quantity 10 m 3 / min tower gas velocity 1.5 m / sec tower diameter 0.38mφ sludge circulation rate 28 / min circulating sludge concentration 5000 mg / start of the experiment after 15 days. The result is
It was as follows.
項 目 原臭 処理ガス 臭気濃度 11200倍 46倍 （臭袋法） アンモニア 28PPM 0.6PPM（ガス分析） 硫化水素 76PPM 0.018PPM（ガス分析） メチルメルカプタン 0.65PPM ＜0.001PPM（ガス分析） 硫化メチル 0.32PPM ＜0.002PPM（ガス分析） 二硫化メチル 0.16PPM ＜0.0003PPM（ガス分析） なお、臭袋法は三点比較式によるものであり、またガス
分析はガスクロマトグラフによるものである。Item Original odor Processed gas Odor concentration 11200 times 46 times (odor bag method) Ammonia 28 PPM 0.6 PPM (gas analysis) Hydrogen sulfide 76 PPM 0.018 PPM (gas analysis) Methyl mercaptan 0.65 PPM <0.001 PPM (gas analysis) Methyl sulfide 0.32 PPM < 0.002 PPM (gas analysis) Methyl disulfide 0.16 PPM <0.0003 PPM (gas analysis) The odor bag method is based on a three-point comparison formula, and the gas analysis is based on a gas chromatograph.
［発明の効果］ 以上説明したことから明らかなように、この発明の脱
臭装置は下記の効果を有する。[Effects of the Invention] As is apparent from the above description, the deodorizing apparatus of the present invention has the following effects.
従来の装置と違って廃液の処理が不要なため二次公
害のおそれがない。Unlike conventional devices, there is no need for waste liquid treatment, so there is no risk of secondary pollution.
主に汚泥を脱臭媒介として使用するので、維持管理
費が安くつく。Mainly because sludge is used as a deodorizing medium, maintenance costs are low.
汚泥を汚泥槽で活性化させながらガス処理塔へ循環
させるので、脱臭効果が低下せず半永久的に使用でき
る。Since the sludge is circulated to the gas treatment tower while being activated in the sludge tank, it can be used semi-permanently without decreasing the deodorizing effect.
ガス処理塔内に十分な量の汚泥を供給できるので、
臭気ガスの臭気濃度が変化しても確実に脱臭できる。Since a sufficient amount of sludge can be supplied into the gas treatment tower,
Even if the odor concentration of the odor gas changes, it can be reliably deodorized.
上記と同様の理由により、汚泥の豊富な屎尿処理
設備や下水処理施設などの設置する脱臭装置として特に
最適である。For the same reason as above, it is particularly suitable as a deodorizing device installed in a sludge-rich human waste treatment facility or a sewage treatment facility.
汚泥槽への活性化した汚泥の供給をリアクターによ
って一定時間ごとに行えるので、作業者の手間が省ける
上に、汚泥槽内の汚泥の一部をリアクター内の腐植物に
混入させて腐植化できるので、汚泥の腐植化が効率よく
行える。Activated sludge can be supplied to the sludge tank by the reactor at regular intervals, so labor can be saved, and part of the sludge in the sludge tank can be mixed with the humus in the reactor for humification. Therefore, the humus of sludge can be efficiently performed.
請求項２記載の脱臭装置によれば、ガス処理塔の下
部から導入された臭気ガスが多段の腐植物を含有した汚
泥と接触することにより、臭気ガス中の臭成分が効率よ
く分解除去される。According to the deodorizing device of the second aspect, the odor gas introduced from the lower part of the gas treatment tower comes into contact with the sludge containing the multistage humus, whereby the odor components in the odor gas are efficiently decomposed and removed. .
第１図はこの発明の脱臭装置の実施例を示す正面図、第
２図は第１図のガス処理塔の内部を示す拡大断面図、第
３図は従来の一般的な脱臭装置を示す正面図である。 １……脱臭装置、２……ガス処理塔、３……汚泥槽、４
……リアクター、５……棚板、６……小孔、７……溢流
管、８……循環管、９……循環ポンプ、ｈ……汚泥、ｉ
……腐植物。FIG. 1 is a front view showing an embodiment of the deodorizing apparatus of the present invention, FIG. 2 is an enlarged sectional view showing the inside of the gas processing tower of FIG. 1, and FIG. 3 is a front view showing a conventional general deodorizing apparatus. FIG. 1 ... deodorizing device, 2 ... gas treatment tower, 3 ... sludge tank, 4
... reactor, 5 ... shelf board, 6 ... small hole, 7 ... overflow pipe, 8 ... circulation pipe, 9 ... circulation pump, h ... sludge, i
…… a humus.
Claims (2)
に接触させて脱臭するガス処理塔と、汚泥を蓄積した汚
泥槽と、腐植物が収容されたリアクターとを備え、腐植
物を含む汚泥を媒介として脱臭する装置であって、 前記ガス処理塔と前記汚泥槽とを両槽間で汚泥が循環す
るように、ポンプを介設した第１循環管によって接続
し、 前記汚泥槽はポンプを介設した第２循環管によって前記
リアクターに接すると共に、汚泥槽の汚泥の一部をリア
クター内に取り込めるように第２循環管の一端を前記第
１循環管の途中に接続し、また前記第２循環管に開閉弁
を介設すると共に、汚泥槽内の汚泥の活性化作用が低減
しないように前記開閉弁を一定時間ごとに所定時間開放
するようにしたことを特徴とする脱臭装置。A sludge storage device comprising: a gas treatment tower for storing sludge and contacting the introduced odor gas with the sludge for deodorization; a sludge tank for storing sludge; and a reactor for accommodating humus. A deodorizing apparatus using sludge as a medium, wherein the gas treatment tower and the sludge tank are connected by a first circulation pipe provided with a pump so that the sludge circulates between the two tanks. A second circulation pipe provided with a pump is connected to the reactor by a second circulation pipe, and one end of the second circulation pipe is connected to the middle of the first circulation pipe so that a part of the sludge in the sludge tank can be taken into the reactor. A deodorizing device characterized in that an on-off valve is interposed in the second circulation pipe, and the on-off valve is opened for a predetermined period of time at regular intervals so that the activation of sludge in the sludge tank is not reduced.
け、ガス処理塔内には臭気ガスと汚泥を接触させるため
の多段の棚板を上下方向に間隔をあけて配設し、各棚板
には前記ガス導入口から導入される臭気ガスが通過する
多数の小孔を開設し、各棚板には相互に位置をずらせて
溢流管を垂直方向に取り付け、各溢流管の上端部を、棚
板上に供給される汚泥が一定量貯留され一定量を超えた
汚泥ｈが溢れて流下するように棚板の上方に突出させ、
各溢流管の下端部分は一段下の棚板に形成した凹所内に
挿入すると共に、最下段の棚板の溢流管の下端をガス処
理塔の底部付近まで垂下し、 ガス処理塔の頂部にガス放出用の臭突を連設し、この臭
突の下方に前記汚泥槽からの汚泥の供給管を配設し、こ
の汚泥の供給管の上方でガス処理塔内の上端部にミスト
セパレータを設け、このミストセパレータの上方に水洗
浄用の導水管を配設した請求項１記載の脱臭装置。2. A gas inlet is provided at a lower portion of the gas processing tower, and a multi-stage shelf for contacting odor gas and sludge is arranged in the gas processing tower at intervals in the vertical direction. The shelves are provided with a number of small holes through which the odorous gas introduced from the gas inlet passes, and the shelves are shifted from each other and overflow pipes are vertically mounted. The upper end is made to protrude above the shelf plate so that the sludge supplied on the shelf plate is stored in a certain amount and the sludge h exceeding a certain amount overflows and flows down,
The lower end of each overflow pipe is inserted into the recess formed in the lower shelf, and the lower end of the overflow pipe in the lowermost shelf descends to near the bottom of the gas treatment tower. A gas discharge stirrer is connected to the stack, and a sludge supply pipe from the sludge tank is disposed below the stack, and a mist separator is provided at an upper end of the gas treatment tower above the sludge supply pipe. 2. The deodorizing apparatus according to claim 1, wherein a water guide pipe for water washing is disposed above the mist separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63301400A JP2750588B2 (en) | 1988-11-28 | 1988-11-28 | Deodorizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63301400A JP2750588B2 (en) | 1988-11-28 | 1988-11-28 | Deodorizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149313A JPH02149313A (en) | 1990-06-07 |
| JP2750588B2 true JP2750588B2 (en) | 1998-05-13 |
Family
ID=17896413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63301400A Expired - Fee Related JP2750588B2 (en) | 1988-11-28 | 1988-11-28 | Deodorizing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2750588B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3493735B2 (en) * | 1994-07-22 | 2004-02-03 | 栗田工業株式会社 | Anaerobic reaction gas desulfurization unit |
| JP4527610B2 (en) * | 2005-06-21 | 2010-08-18 | 三共スチール株式会社 | Method and apparatus for fertilizers such as garbage |
| CN110747056A (en) * | 2019-10-30 | 2020-02-04 | 怀化市富源油业有限公司 | Tea-seed oil is concise deodorization processing tower for deodorization processing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4827968A (en) * | 1971-08-16 | 1973-04-13 |
-
1988
- 1988-11-28 JP JP63301400A patent/JP2750588B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02149313A (en) | 1990-06-07 |
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