JPH06296822A - Deodorizing method - Google Patents
Deodorizing methodInfo
- Publication number
- JPH06296822A JPH06296822A JP5109785A JP10978593A JPH06296822A JP H06296822 A JPH06296822 A JP H06296822A JP 5109785 A JP5109785 A JP 5109785A JP 10978593 A JP10978593 A JP 10978593A JP H06296822 A JPH06296822 A JP H06296822A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- treatment
- coffee extract
- odor
- chemical
- 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 abstract description 29
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000003763 carbonization Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 30
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 18
- 239000007789 gas Substances 0.000 description 13
- 238000007796 conventional method Methods 0.000 description 9
- 244000005700 microbiome Species 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000006174 pH buffer Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000006179 pH buffering agent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、臭気を含む気体の脱臭
方法に係り、特に廃水や廃棄物の処理場、畜舎、臭気を
伴う製造現場等において、燃焼や薬品処理によらずに種
々雑多な臭気を除去する技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for deodorizing a gas containing an odor, particularly in a waste water or waste treatment plant, a livestock house, a production site accompanied by an odor, etc. without using combustion or chemical treatment. Technology for removing odor.
【０００２】[0002]
【従来の技術】種々雑多な臭気の除去については、
（ａ）燃焼する方法、（ｂ）臭気成分を含む気体を酸あ
るいはアルカリ又は次亜塩素酸ソーダ等の酸化剤で洗浄
する方法、（ｃ）前記以外の薬品との化学反応による方
法、（ｄ）臭気成分を資化する微生物による方法、
（ｅ）活性炭に代表される吸着剤を用いる方法があり、
時と場合によってこれらの方法が単独に、或いは組み合
わせて採用されてきた。2. Description of the Related Art For removing various odors,
(A) a method of burning, (b) a method of washing a gas containing an odorous component with an oxidizing agent such as an acid, an alkali or sodium hypochlorite, (c) a method of a chemical reaction with a chemical other than the above, (d) ) A method using a microorganism that utilizes an odor component,
(E) There is a method of using an adsorbent represented by activated carbon,
Depending on the time and the case, these methods have been adopted individually or in combination.
【０００３】（ａ）の燃焼法は焼却装置が存在する場合
に限り採用できるが、脱臭のみを目的とするならば経費
が高くついて採用は困難である。また、濃度の高い臭気
除去には有効であるが、比較的低い濃度の臭気に対して
は効率が悪い。（ｂ）の酸やアルカリ等で洗浄する方法
は、これらの取扱いの他廃水処理を要し、ときには反応
によって生成する副産物の処理・処分という問題を有す
る。（ｃ）の薬品との化学反応による方法では、臭気成
分と薬品との対応が限定されており、複数種の臭気成分
が含まれる場合には複数種の薬品を要し、コスト高とな
る。また、薬品によっては処分に困る劇薬、毒薬等もあ
る。The combustion method (a) can be adopted only when an incinerator is present, but if it is intended only for deodorization, it is expensive and difficult to use. Further, although it is effective in removing odors having a high concentration, it is inefficient for odors having a relatively low concentration. The method of washing with an acid or alkali of (b) requires wastewater treatment in addition to handling these, and sometimes has a problem of treatment / disposal of by-products generated by the reaction. In the method (c) based on the chemical reaction with a chemical, the correspondence between the odorous component and the chemical is limited, and when a plurality of types of odorous components are contained, a plurality of types of chemicals are required, resulting in high cost. Also, depending on the drug, there are some powerful drugs and poisonous drugs that are difficult to dispose of.
【０００４】（ｄ）の微生物による分解法は酸素を含む
ガスに限られる上、臭気成分の負荷が急激に高くなった
りすると除去効率の低下をもたらすという不安定要素を
持つ。微生物による分解法を効率良く行うためには、微
生物を担体に固定し、反応器の単位容積当たりの微生物
濃度を高濃度に保持する必要がある。そして、この微生
物が臭気成分の高い分解活性を維持するには、微生物に
とって至適なｐＨでなければならず、ｐＨ緩衝のために
ｐＨ緩衝作用を持つ物質を微生物担体に混合していた。
また適度な湿度も必要であり、原臭気ガスと向流に強制
的に水分を供給していた。The microbial decomposition method (d) is limited to a gas containing oxygen, and has an unstable factor that the removal efficiency is lowered when the load of the odorous component is suddenly increased. In order to efficiently carry out the microbial decomposition method, it is necessary to immobilize the microorganisms on a carrier and maintain a high concentration of the microorganisms per unit volume of the reactor. In order for the microorganism to maintain a high activity of decomposing odorous components, the pH should be optimum for the microorganism, and a substance having a pH buffering action was mixed with the microorganism carrier for pH buffering.
In addition, an appropriate humidity was required, and the original odor gas and the countercurrent were forced to supply water.
【０００５】（ｅ）の活性炭のような吸着剤の場合は、
再生処理を行わない使い捨てではコスト高である。更
に、活性炭のような吸着剤の場合も、反応系のｐＨは中
性付近が適しており、原臭気ガスがこのｐＨ値から外れ
る場合はｐＨ緩衝剤を併用する。また、活性炭は湿潤ガ
スに対する耐久性に欠ける。更に稀少な例ではあるが、
製造現場等から発生するガスで、酸化性成分を含む場合
はたいへん危険である。In the case of an adsorbent such as activated carbon (e),
The cost is high for a single-use method that does not perform a recycling process. Further, in the case of an adsorbent such as activated carbon, the pH of the reaction system is preferably around neutral, and when the original odor gas deviates from this pH value, a pH buffer is also used. In addition, activated carbon lacks durability against wet gas. In a rarer case,
It is a gas generated from the manufacturing site, etc., and it is very dangerous if it contains oxidizing components.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記のよう
な問題点がなく、各種の臭気成分に対して、安価にして
迅速かつ安定した除去ができる脱臭方法を提供すること
を課題とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a deodorizing method which does not have the above-mentioned problems and which can remove various odorous components inexpensively and quickly and stably. .
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、本発明では、臭気を含む気体の脱臭方法において、
臭気含有気体を予め乾燥処理、炭化処理、薬品処理のう
ち少なくとも１種で処理されたコーヒー抽出粕を充填し
た層に通すこととしたものである。In order to solve the above problems, the present invention provides a method for deodorizing a gas containing an odor, comprising:
The odor-containing gas is passed through a layer filled with coffee extract cake which has been previously treated with at least one of drying treatment, carbonization treatment and chemical treatment.
【０００８】前記方法において、乾燥処理とは、コーヒ
ー抽出粕を、例えば１１０℃以下の温度にて３時間以上
熱風乾燥、温風乾燥或いは風乾することを意味する。ま
た、炭化処理とは、例えば９００℃以下の温度にて１０
時間以下の炭化を行うことを意味し、薬品処理とは、ア
ルカリや酸化剤に因るものであり、公知のこれら薬剤が
使用できる。In the above-mentioned method, the drying treatment means that the coffee extract cake is dried with hot air, warm air or air at a temperature of 110 ° C. or lower for 3 hours or more. The carbonization treatment means, for example, at a temperature of 900 ° C. or lower for 10
It means that carbonization is performed for a time or less, and the chemical treatment is due to an alkali or an oxidizing agent, and known chemicals can be used.
【０００９】[0009]
【作用】コーヒー抽出粕を乾燥処理したもの、炭化処理
したもの、或いは薬品処理したものは安価であるため、
使い捨てでもコスト高にはならない上、廃水処理の必要
や、処理・処分に困る副生物の生成もない。更に、アル
カリ成分が多く緩衝性に富み、また保水性にも富むため
ｐＨ緩衝剤との併用や、水分補給の必要性がないばかり
か、逆に水分を含む原臭気ガスに対しても耐久性を示
す。[Function] Since coffee extract cake dried, carbonized or chemically treated is cheap,
Even if it is disposable, the cost will not be high, and there is no need for wastewater treatment, and there is no generation of by-products that are troublesome in treatment and disposal. Furthermore, since it contains a lot of alkaline components and is highly buffered, and also highly water-retentive, there is no need to use it in combination with a pH buffer or to replenish water, and on the contrary, it is also durable against odorous gases containing water. Indicates.
【００１０】[0010]
【実施例】以下、本発明を実施例により具体的に説明す
るが、本発明はこれらに限定されるものではない。 実施例１ 下水道ポンプ場から発生する臭気を、乾式脱臭するにあ
たり、従来法と本発明方法とを比較した結果を表１に示
す。従来法とは酸化鉄による硫化水素除去、硫酸含浸化
学吸着剤による、アンモニア等の塩基性臭気成分の除
去、そして活性炭によるその他の臭気成分の除去という
プロセスから成り立っている。これに対し活性炭にかえ
て乾燥処理したコーヒー抽出粕を用いたのが本発明方法
である。EXAMPLES The present invention will now be specifically described with reference to examples, but the present invention is not limited thereto. Example 1 Table 1 shows the results of comparison between the conventional method and the method of the present invention for dry deodorization of the odor generated from the sewer pumping station. The conventional method consists of the processes of removing hydrogen sulfide with iron oxide, removing basic odor components such as ammonia with a sulfuric acid-impregnated chemical adsorbent, and removing other odor components with activated carbon. On the other hand, the method of the present invention uses dried coffee grounds instead of activated carbon.
【００１１】本発明の方法は従来法に比較して何ら遜色
がなく、かえって臭気濃度が低い。脱臭のための薬品コ
ストは、従来法では３．３円／ｍ3 −下水、本発明方法
では２．５円／ｍ3 −下水であった。従来法では、活性
炭充填槽にｐＨ緩衝剤としてサンゴ砂を混合したが、本
発明方法ではこれを併用する必要はなかった。The method of the present invention is comparable to the conventional method and has a low odor concentration. The chemical cost for deodorization was 3.3 yen / m 3 -sewage in the conventional method and 2.5 yen / m 3 -sewage in the method of the present invention. In the conventional method, coral sand was mixed as a pH buffer in the activated carbon filling tank, but it was not necessary to use it together in the method of the present invention.
【００１２】[0012]
【表１】 [Table 1]
【００１３】実施例２ し尿処理場にて発生する臭気を除去するにあたり、従来
法（酸・アルカリ及び次亜塩素酸による薬液洗浄処理＋
活性炭吸着処理）と本発明方法（酸・アルカリ及び次亜
塩素酸による薬液洗浄＋炭化処理コーヒー抽出粕接触処
理）を比較したところ表２に示すような結果が得られ
た。本実施例においても従来法に比較して何ら遜色がな
い結果となっている。脱臭に要する経費は、従来法では
３０８円／ｋｌ−し尿、本発明方法では２５７円／ｋｌ
−し尿であった。また従来法の活性炭は２．４ケ月間原
臭気ガスを通気すると、湿潤して使用に耐えなくなった
が、本発明方法のコーヒー抽出粕では４．５ケ月間使用
に耐えた。Example 2 In removing odors generated in a night soil treatment plant, a conventional method (chemical solution cleaning treatment with acid / alkali and hypochlorous acid +
When the activated carbon adsorption treatment) and the method of the present invention (chemical solution cleaning with acid / alkali and hypochlorous acid + carbonized coffee extract cake contact treatment) were compared, the results shown in Table 2 were obtained. Also in this example, the result is comparable to the conventional method. The cost required for deodorization is 308 yen / kl-human waste in the conventional method and 257 yen / kl in the method of the present invention.
-It was human waste. Further, when the conventional method activated carbon was aerated for 2.4 months with a raw odor gas, it became wet and became unusable, but the coffee extract cake of the method of the present invention could be used for 4.5 months.
【００１４】[0014]
【表２】 [Table 2]
【００１５】[0015]
【発明の効果】本発明で用いる処理を施したコーヒー抽
出粕は、活性炭と同程度の臭気成分除去能を有するのみ
ならず、活性炭に比して単価が安いために再生せずして
使い捨てでもコスト高にはならない。また、ｐＨ緩衝性
に富むため、ｐＨ緩衝剤を併用することもない上、保水
性にも富むので原臭気ガスを強制的に湿潤せしめる必要
がなく、湿潤ガスに対しても耐久性を有する。そして、
臭気成分の濃度変化に対しても許容力を有し、安定した
脱臭能を保持する上、副成分を生じることもない。EFFECTS OF THE INVENTION The coffee extract cake treated in the present invention has not only the ability to remove odorous components as activated carbon, but also the unit price is lower than that of activated carbon, so that it can be reused without being regenerated. The cost will not be high. Further, since it is rich in pH buffering property, it is not necessary to use a pH buffering agent together, and since it is also rich in water retention property, it is not necessary to forcibly moisten the original odor gas, and it has durability against moistening gas. And
It is tolerant of changes in the concentration of odorous components, maintains a stable deodorizing ability, and does not produce subcomponents.
Claims (1)
気含有気体を予め乾燥処理、炭化処理、薬品処理のうち
少なくとも１種で処理されたコーヒー抽出粕を充填した
層に通すことを特徴とする脱臭方法。1. A method for deodorizing a gas containing an odor, wherein the odor-containing gas is passed through a layer filled with coffee extract cake which has been previously treated with at least one of drying treatment, carbonization treatment and chemical treatment. Deodorizing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109785A JPH06296822A (en) | 1993-04-14 | 1993-04-14 | Deodorizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109785A JPH06296822A (en) | 1993-04-14 | 1993-04-14 | Deodorizing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06296822A true JPH06296822A (en) | 1994-10-25 |
Family
ID=14519164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5109785A Pending JPH06296822A (en) | 1993-04-14 | 1993-04-14 | Deodorizing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06296822A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619851A (en) * | 2018-05-07 | 2018-10-09 | 中国农业大学 | A kind of preparation method to dehumidify except the coffee grounds packet with fresh air of formaldehyde |
| KR20210069970A (en) * | 2019-12-04 | 2021-06-14 | 유한회사 축산냄새연구소 | Composition for reducing odor of livestock manure comprising coffee ground extract |
-
1993
- 1993-04-14 JP JP5109785A patent/JPH06296822A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619851A (en) * | 2018-05-07 | 2018-10-09 | 中国农业大学 | A kind of preparation method to dehumidify except the coffee grounds packet with fresh air of formaldehyde |
| KR20210069970A (en) * | 2019-12-04 | 2021-06-14 | 유한회사 축산냄새연구소 | Composition for reducing odor of livestock manure comprising coffee ground extract |
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