JP3126669B2 - Oxidative deodorization method for sulfur-based malodorous components - Google Patents
Oxidative deodorization method for sulfur-based malodorous componentsInfo
- Publication number
- JP3126669B2 JP3126669B2 JP08298595A JP29859596A JP3126669B2 JP 3126669 B2 JP3126669 B2 JP 3126669B2 JP 08298595 A JP08298595 A JP 08298595A JP 29859596 A JP29859596 A JP 29859596A JP 3126669 B2 JP3126669 B2 JP 3126669B2
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- JP
- Japan
- Prior art keywords
- nitrate
- hydrogen peroxide
- sulfur
- sludge
- deodorizing
- 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.)
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Landscapes
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treating Waste Gases (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、硫化水素、メチル
メルカブタン、硫化ジメチル、二硫化ジメチル等の硫黄
系悪臭成分の酸化脱臭方法に関する。廃液、例えば製紙
工場の排水、あるいは公共下水道施設、民間排水処理施
設、し尿処理施設又は集中ネットワーク等の施設内又は
排水部における不快臭は、排水中の硫黄系悪臭成分に起
因していることが大半である。上記の硫化水素、メチル
メルカブタン、硫化ジメチル、二硫化ジメチルは、一般
に、硫黄系悪臭の４成分と呼ばれており、これらの硫黄
系悪臭を除去し、不快感をなくすることにより環境を良
好に保つことが要求されている。The present invention relates to a method for oxidizing and deodorizing sulfur-based malodorous components such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide. Effluents, for example wastewater from paper mills, or unpleasant odors in facilities such as public sewerage facilities, private effluent treatment facilities, human waste treatment facilities or centralized networks or in drainage areas may be attributed to sulfur-based malodorous components in the wastewater. Most. The above-mentioned hydrogen sulfide, methyl mercaptan, dimethyl sulfide, and dimethyl disulfide are generally referred to as four components of sulfur-based odors. The environment is improved by removing these sulfur-based odors and eliminating discomfort. Is required to be maintained.
【０００２】[0002]
【従来の技術】従来、この種の硫黄系悪臭の脱臭方法と
しては種々のものがあった。例えば、広く採用されてい
る方法として活性炭による吸着方法がある。この吸着方
法は、設備や方法が簡単であるという利点があるが、物
理的な吸着作用を利用しているので、反応が遅く、処理
コストが高く、吸着した悪臭を再処理する必要が生ずる
等の欠点があった。燃焼による脱臭方法は、設備が大型
になり維持管理が困難になるという問題があった。2. Description of the Related Art Heretofore, there have been various methods for deodorizing such sulfurous odors. For example, there is an adsorption method using activated carbon as a method widely used. This adsorption method has the advantage that the equipment and method are simple, but since it utilizes physical adsorption, the reaction is slow, the treatment cost is high, and it is necessary to reprocess the adsorbed odor. There were drawbacks. The deodorization method by combustion has a problem that equipment becomes large and maintenance and management become difficult.
【０００３】化学反応を利用する方法として、過酸化水
素、次亜塩素酸ソーダ（塩素類）などで前記の悪臭成分
を酸化分解する方法がある。この化学反応を利用した方
法では、悪臭除去の即効性は優れているものの、効果の
持続性の点で劣るという問題があった。化学反応を利用
した従来例として、特公昭６３−５８６６４０号公報に
記載の方法は、汚泥をバイオマスの生存保持下に脱臭す
る場合に、排水汚泥をアルカリ金属又はアルカリ土類金
属亜塩素酸塩で、５〜４０℃で処理するものである。As a method utilizing a chemical reaction, there is a method of oxidatively decomposing the offensive odor component with hydrogen peroxide, sodium hypochlorite (chlorines) and the like. The method utilizing this chemical reaction has a problem in that although the immediate effect of removing the offensive odor is excellent, the effect persistence is poor. As a conventional example utilizing a chemical reaction, the method described in Japanese Patent Publication No. 63-586640 discloses a method in which when sludge is deodorized while maintaining biomass survival, wastewater sludge is treated with an alkali metal or alkaline earth metal chlorite. , 5 to 40 ° C.
【０００４】また、特公平１−４４３４０号公報には、
洗浄剤として酸化剤、酸、アルカリを用いた洗浄方式の
脱臭方法において、気液接触部に紫外線を照射してし尿
処理や下水処理場で発生する悪臭を脱臭する方法が示さ
れている。また、特公平４−５９０３９号公報には、３
価の鉄を主成分とする凝集剤と酸化剤を同時に添加して
凝集沈殿処理と悪臭物質の分解処理を同時にすることが
開示されている。Further, Japanese Patent Publication No. 1-44340 discloses that
As a deodorizing method of a cleaning method using an oxidizing agent, an acid, and an alkali as a cleaning agent, a method of irradiating a gas-liquid contact portion with ultraviolet rays to deodorize a malodor generated in a urine treatment or a sewage treatment plant is disclosed. In addition, Japanese Patent Publication No. 4-59039 discloses 3
It is disclosed that a coagulant and a oxidizing agent containing iron as a main component are simultaneously added to carry out coagulation precipitation treatment and decomposition treatment of malodorous substances at the same time.
【０００５】また、特公平６−９６８０号公報には、悪
臭物質１モルに対して２／1000モル〜５／1000モルのポ
リ硫酸鉄と３／1000モル〜10／1000モルの過酸化水素を
添加する汚泥の脱臭方法が開示されている。また、特公
平６−２０５３９号公報には、悪臭成分の吸着剤とし
て、リン酸、亜リン酸、次亜リン酸から選ばれた少なく
とも一種と過酸化カルシウム、過炭酸ナトリウム、過酸
化カリウム、過ホウ酸ナトリウム、過炭酸ナトリウム、
過硫酸カリウム、過酸化水素の群から選ばれた少なくと
も一種及び／又は鉄、コバルト、ニッケル、チタン、ジ
ルコニウム、パナジウム、クロム、モリブデン、タング
ステン、マンガン、銅、銀、亜鉛、ゲルマニウム、錫、
鉛、マグネシウム、ストロンチウムの群から選ばれた元
素の酸化物の少なくとも一種からなる脱臭剤が開示され
ている。In Japanese Patent Publication No. 6-9680, 2/1000 mol to 5/1000 mol of polysulfate and 3/1000 mol to 10/1000 mol of hydrogen peroxide are used per mol of malodorous substance. A method for deodorizing sludge to be added is disclosed. Japanese Patent Publication No. 6-20539 discloses that at least one selected from phosphoric acid, phosphorous acid, and hypophosphorous acid and calcium peroxide, sodium percarbonate, potassium peroxide, Sodium borate, sodium percarbonate,
Potassium persulfate, at least one selected from the group of hydrogen peroxide and / or iron, cobalt, nickel, titanium, zirconium, panadium, chromium, molybdenum, tungsten, manganese, copper, silver, zinc, germanium, tin,
A deodorant comprising at least one oxide of an element selected from the group consisting of lead, magnesium and strontium is disclosed.
【０００６】[0006]
【発明が解決しようとする課題】上述の化学反応を利用
した種々の方法において、次亜鉛酸ソーダ（塩基類）を
使用する方法は、硫黄系悪臭成分の脱臭に対してある程
度の効果があるにもかかわらず、脱臭の際に有機塩素系
化合物を発生する恐れがあり、脱臭に広く用いるには一
長一短があった。Among the various methods utilizing the above-mentioned chemical reaction, the method using sodium hypochlorite (bases) has a certain effect on deodorization of sulfur-based malodorous components. Nevertheless, there is a possibility that an organochlorine compound may be generated at the time of deodorization, and there are advantages and disadvantages when widely used for deodorization.
【０００７】また、過酸化水素を使用したもの、或いは
過酸化水素と他の物質とを組み合わせて使用した従来の
脱臭方法は、即効性に優れているという利点があるもの
の、脱臭効果を長時間維持することが困難で、持続性に
乏しいという欠点があった。そこで本発明では、過酸化
水素や過酸化水素誘導体を単独で使用した場合、或いは
従来技術における過酸化水素と他の物質との結合物を使
用した場合において、十分でなかった悪臭除去効果の持
続性の向上を図ると共に、過酸化水素の使用量の削減す
ることのできる、硫黄系悪臭成分の酸化脱臭方法を提供
することを課題とする。A conventional deodorizing method using hydrogen peroxide or a combination of hydrogen peroxide and another substance has the advantage of being excellent in immediate effect, but has a long deodorizing effect. There were drawbacks that it was difficult to maintain and poor in sustainability. Therefore, in the present invention, when hydrogen peroxide or a hydrogen peroxide derivative is used alone, or when a combination of hydrogen peroxide and another substance in the prior art is used, the unsatisfactory odor removing effect is not maintained. It is an object of the present invention to provide a method for oxidizing and deodorizing a sulfur-based malodorous component, which can improve the performance and reduce the amount of hydrogen peroxide used.
【０００８】[0008]
【課題を解決するための手段】上記の課題を達成するた
めに、本発明によれば、過酸化水素及び／又は過酸化水
素誘導体に硝酸塩を添加した溶液で硫黄系悪臭物質を分
解処理することを特徴とする、硫黄系悪臭成分の脱臭方
法。ここで、硝酸塩としては、例えば、硝酸ナトリウ
ム、硝酸亜鉛、硝酸アルミニウム、硝酸アンモニウム、
硝酸イソソルビトール、硝酸カドミウム、硝酸カリウ
ム、硝酸カルシウム、硝酸銀、硝酸グリセロール、硝酸
コバルト、硝酸ジルコニル、硝酸水銀（Ｉ，II）、硝酸
ストロンチウム、硝酸石灰、硝酸セルロース、硝酸ソー
ダ、硝酸タリウム、硝酸第二鉄（III ）、硝酸第二銅、
硝酸ニッケル、硝酸バリウム、硝酸ビスマス、硝酸マグ
ネシウム、硝酸マンガン、硝酸リチウム等があるが、本
発明では、硝酸塩として、特に、硝酸カリウム又は硝酸
ナトリウム、或いはこれらの両者を使用する。According to the present invention, a sulfur-based malodorous substance is decomposed with a solution obtained by adding nitrate to hydrogen peroxide and / or a hydrogen peroxide derivative. A method for deodorizing a sulfur-based malodorous component. Here, as the nitrate, for example, sodium nitrate, zinc nitrate, aluminum nitrate, ammonium nitrate,
Isosorbitol nitrate, cadmium nitrate, potassium nitrate, calcium nitrate, silver nitrate, glycerol nitrate, cobalt nitrate, zirconyl nitrate, mercury nitrate (I, II), strontium nitrate, nitrate lime, cellulose nitrate, sodium nitrate, thallium nitrate, ferric nitrate (III), cupric nitrate,
Nickel nitrate, barium nitrate, bismuth nitrate, magnesium nitrate, manganese nitrate, there are lithium nitrate or the like, the
In the invention, the nitrate is preferably potassium nitrate or nitric acid.
Use sodium or both .
【０００９】また、過酸化水素誘導体としては、過炭酸
ナトリウム、過硼酸ナトリウム、過酸化カルシウム等が
ある。また本発明では、特に、過酸化水素に硝酸カリウ
ム又は硝酸ナトリウムを添加した溶液を使用することを
特徴とする。更にまた、過酸化水素に硝酸カリウムを添
加した溶液を使用することを特徴とする。[0009] Examples of the hydrogen peroxide derivative include sodium percarbonate, sodium perborate and calcium peroxide. The present invention is particularly characterized in that a solution obtained by adding potassium nitrate or sodium nitrate to hydrogen peroxide is used. Still further, a solution obtained by adding potassium nitrate to hydrogen peroxide is used.
【００１０】下水処理場等における汚泥で、硫化水素
（Ｈ2 Ｓ）、メチルメルカブタン（ＭＭ）等を含んだ悪
臭物質に対して、過酸化水素に硝酸カリウム又は硝酸ナ
トリウムを添加した溶液を使用して汚泥を分解処理した
場合には、悪臭物質に対して全く何らの脱臭処理を施さ
ない場合、又は従来のように、過酸化水素溶液のみで汚
泥を分解処理した場合に比べ、硫化水素（Ｈ2 Ｓ）、メ
チルメルカブタン（ＭＭ）、硫化ジメチル（ＤＭＳ）、
二硫化ジメチル（ＤＭＤＳ）等の悪臭成分は大幅に低減
され、また、その効果が長時間にわたって持続される。In a sludge in a sewage treatment plant or the like, a solution obtained by adding potassium nitrate or sodium nitrate to hydrogen peroxide is used for a malodorous substance containing hydrogen sulfide (H 2 S), methyl mercaptan (MM) and the like. In the case where sludge is decomposed with hydrogen sulfide (H 2 H 2), compared with the case where no deodorizing treatment is applied to malodorous substances or the case where sludge is decomposed only with a hydrogen peroxide solution as in the past. 2 S), methyl mercaptan (MM), dimethyl sulfide (DMS),
Offensive odor components such as dimethyl disulfide (DMDS) are greatly reduced, and their effects are maintained for a long time.
【００１１】[0011]
【実施例】実施例１及び比較例 下水処理場における余剰の汚泥で、悪臭成分として硫化
水素７０ｐｐｍ、メチルメルカブタン７７ｐｐｍを含ん
でいるものに対し、次の〜の処理を施してヘッドス
ペースボトル（１００ｃｃ）中に５０ｃｃを入れ、ボト
ル内の空間ガス中の臭気ガス成分をヘッドスペース法に
より臭気成分を測定した。EXAMPLES Example 1 and Comparative Example A headspace bottle (excess sludge) containing 70 ppm of hydrogen sulfide and 77 ppm of methyl mercaptan as malodorous components in a sewage treatment plant was subjected to the following processes. 100 cc) was put in 50 cc, and the odor gas component in the space gas in the bottle was measured by the headspace method.
【００１２】 ３５％の過酸化水素溶液を５倍に希釈
したもの（以下、７％溶液と記す）を上記の汚泥に５０
０ｐｐｍ添加した（比較例）。 過酸化水素７％溶液を上記の汚泥に１０００ｐｐｍ
添加した（比較例）。 過酸化水素７％溶液７００ｐｐｍに活性助剤として
硝酸カリウム７０ｐｐｍを添加したものを、上記の汚泥
に添加した（実施例１）。A 35% hydrogen peroxide solution diluted 5 times (hereinafter referred to as a 7% solution) is added to the above-mentioned sludge by 50%.
0 ppm was added (Comparative Example). 1000 ppm of hydrogen peroxide solution to the above-mentioned sludge
(Comparative Example). What added 70 ppm of potassium nitrate as an active auxiliary agent to 700 ppm of a 7% solution of hydrogen peroxide was added to the above-mentioned sludge (Example 1).
【００１３】上記の〜の各汚泥に対し２４時間経過
するまで、１時間後、３時間後、５時間後、２４時間後
における硫化水素（Ｈ2 Ｓ）及びメチルメルカブタン
（ＭＭ）の濃度（ｐｐｍ）を測定した。その結果を表１
に示す。The concentrations of hydrogen sulfide (H 2 S) and methyl mercaptan (MM) after 1 hour, 3 hours, 5 hours, and 24 hours for each of the above-mentioned sludges until 24 hours have passed ( ppm). Table 1 shows the results.
Shown in
【００１４】[0014]
【表１】 [Table 1]
【００１５】表１から明らかなように、実施例１（）
の場合は、比較例，と比べ、悪臭成分が大幅に減少
しておりかつ脱臭効果が長時間持続していることが理解
できる。実施例２及び比較例 下水処理場における貯留槽の汚泥（汚泥濃度約１．９
％）に対し、以下の〜の処理を施してヘッドスペー
スボトル（１００ｃｃ）中に５０ｃｃを入れ、ボトル内
の空間ガス中の臭気ガス成分をヘッドスペース法により
臭気成分を測定した。汚泥の液温は２６℃であった。As apparent from Table 1, Example 1 ()
In the case of the case, it can be understood that the malodorous component is greatly reduced and the deodorizing effect is maintained for a long time as compared with the comparative example. Example 2 and Comparative Example Sludge in a storage tank in a sewage treatment plant (sludge concentration of about 1.9)
%), 50 cc was put into a head space bottle (100 cc) by performing the following processes (1) to (5), and the odor gas component in the space gas in the bottle was measured by the head space method. The liquid temperature of the sludge was 26 ° C.
【００１６】 未添加汚泥（即ち、上記汚泥のままの
状態）（比較例） 過酸化水素７％溶液を上記の汚泥に対し７００ｐｐ
ｍ添加したもの（比較例） 過酸化水素７％溶液に活性助剤として硝酸カリウム
１０％を添加し、それを上記汚泥に対し７００ｐｐｍ添
加したもの（実施例２） 上記の各汚泥に対し５時間（３０分後、３時間後、５時
間後）までの臭気濃度、即ち硫化水素（Ｈ2 Ｓ）、メチ
ルメルカブタン（ＭＭ）、硫化ジメチル（ＤＭＳ）、二
硫化ジメチル（ＤＭＤＳ）の各濃度（ｐｐｍ）を測定し
た。その結果を表２に示す。Unadded sludge (that is, the above-mentioned sludge as it is) (Comparative example)
m (Comparative Example) 10% potassium nitrate was added as an active aid to a 7% solution of hydrogen peroxide, and 700 ppm was added to the above-mentioned sludge (Example 2). Odor concentration up to 30 minutes, 3 hours, 5 hours), ie, each concentration (ppm) of hydrogen sulfide (H 2 S), methyl mercaptan (MM), dimethyl sulfide (DMS), and dimethyl disulfide (DMDS) ) Was measured. Table 2 shows the results.
【００１７】[0017]
【表２】 [Table 2]
【００１８】表２においても、実施例２（）の場合
は、比較例，と比べ脱臭効果が大きく、持続性があ
ることが理解される。実施例３及び比較例 実施例２と同様に、ある下水処理場において混合槽を経
過した汚泥（提供汚泥）に対し、以下の〜の処理を
施してヘッドスペースボトル（１００ｃｃ）中に５０ｃ
ｃを入れ、ボトル内の空間ガス中の硫化水素（Ｈ
2 Ｓ）、メチルメルカブタン（ＭＭ）及び硫化ジメチル
（ＤＭＳ）の濃度（ｐｐｍ）をヘッドスペース法により
測定した。Table 2 also shows that Example 2 () has a greater deodorizing effect and is more durable than the Comparative Example. Example 3 and Comparative Example Similar to Example 2, sludge (provided sludge) that had passed through a mixing tank at a certain sewage treatment plant was subjected to the following processes (1) to (5) in a headspace bottle (100 cc).
c, hydrogen sulfide (H
2 S), the concentration (ppm) of the methyl Melka butane (MM) and dimethyl sulfide (DMS) was measured by head space method.
【００１９】 未処理の汚泥（比較例） ３５％の過酸化水素溶液を５倍に希釈したもの（以
下、７％溶液と記す）を上記の汚泥に対し５００ｐｐｍ
添加したもの（比較例） 過酸化水素７％溶液に活性助剤として硝酸カリウム
１０％を添加し、それを上記汚泥に対し５００ｐｐｍ添
加したもの（実施例３） 上記の各汚泥の温度は２５℃で、室温条件下に放置し
た。３時間（１時間後、３時間後）までの臭気濃度、即
ち硫化水素（Ｈ2 Ｓ）、メチルメルカブタン（ＭＭ）、
硫化ジメチル（ＤＭＳ）の各濃度（ｐｐｍ）を測定し
た。その結果を表３に示す。Untreated sludge (comparative example) A solution obtained by diluting a 35% hydrogen peroxide solution 5 times (hereinafter referred to as a 7% solution) is 500 ppm based on the above-mentioned sludge.
Addition (comparative example) 10% of potassium nitrate was added as an active aid to a 7% solution of hydrogen peroxide, and 500 ppm of this was added to the above-mentioned sludge (Example 3). And left at room temperature. Odor concentration up to 3 hours (after 1 hour and 3 hours), namely hydrogen sulfide (H 2 S), methyl mercaptan (MM),
Each concentration (ppm) of dimethyl sulfide (DMS) was measured. Table 3 shows the results.
【００２０】[0020]
【表３】 [Table 3]
【００２１】表３においても、実施例３（）の場合
は、比較例，と比べ脱臭効果及び持続性が著しく改
善される。実施例４及び比較例 実施例２及び実施例３と同様に、ある下水処理場におけ
る貯留槽の汚泥（提供汚泥）に対し、〜の処理を施
してヘッドスペースボトル（１００ｃｃ）中に５０ｃｃ
を入れ、ボトル内の空間ガス中の悪臭濃度（ｐｐｍ）を
ヘッドスペース法により測定した。Also in Table 3, in the case of Example 3 (), the deodorizing effect and the durability are remarkably improved as compared with the comparative example. Example 4 and Comparative Example As in Examples 2 and 3, sludge (provided sludge) in a storage tank at a certain sewage treatment plant was subjected to the following treatment to obtain 50 cc in a headspace bottle (100 cc).
And the odor concentration (ppm) in the space gas in the bottle was measured by the headspace method.
【００２２】 未処理の汚泥（比較例） 過酸化水素（ＨＰ）７％溶液を上記の汚泥に対し１
０００ｐｐｍ添加したもの（比較例） 過炭酸ソーダ（ＰＣ）を上記の汚泥に対し３００ｐ
ｐｍ添加したもの（比較例） 硝酸カリウム（ＫＮＯ3)を上記の汚泥に対し５００
ｐｐｍ添加したもの（比較例） 過酸化水素７％溶液７００ｐｐｍに活性助剤として
硝酸カリウムを７０ｐｐｍ添加したものを、上記汚泥に
添加したもの（実施例４） 上記の各汚泥に対し２４時間（１時間後、３時間後、５
時間後、２４時間後）までの臭気濃度、即ち硫化水素
（Ｈ2 Ｓ）、メチルメルカブタン（ＭＭ）、硫化ジメチ
ル（ＤＭＳ）、二硫化ジメチル（ＤＭＤＳ）の各濃度
（ｐｐｍ）を測定した。その結果を表４に示す。Untreated sludge (comparative example) A 7% solution of hydrogen peroxide (HP) was
2,000 ppm added (Comparative Example) Sodium percarbonate (PC) 300 p
pm added (Comparative Example) Potassium nitrate (KNO 3 ) was added to the above-mentioned sludge for 500 minutes.
What added 70 ppm of potassium nitrate as an active assistant to 700 ppm of a 7% solution of hydrogen peroxide was added to the above-mentioned sludge (Example 4) 24 hours (1 hour) After 3 hours, 5
After 24 hours, the odor concentration was measured, that is, each concentration (ppm) of hydrogen sulfide (H 2 S), methyl mercaptan (MM), dimethyl sulfide (DMS), and dimethyl disulfide (DMDS) was measured. Table 4 shows the results.
【００２３】[0023]
【表４】 [Table 4]
【００２４】表４においても、実施例４（）の場合
は、比較例〜と比べ大幅に脱臭効果が改善され、そ
の持続性があることが理解される。Also in Table 4, it can be understood that in the case of Example 4 (), the deodorizing effect is greatly improved as compared with Comparative Examples 1 to 3, and that it is persistent.
【００２５】[0025]
【発明の効果】以上に説明したような、本発明の硫黄系
悪臭成分の酸化脱臭方法によると、悪臭物質に対して全
く何らの脱臭処理を施さない場合、又は、従来のよう
に、過酸化水素溶液のみで汚泥を分解処理した場合に比
べ、硫化水素、メチルメルカブタン、硫化ジメチル等の
悪臭成分は大幅に低減され、かつ脱臭効果の持続性を十
分に発揮することが出来る。これにより、脱臭における
過酸化水素の使用量の削減を図ることができる。According to the method for oxidizing and deodorizing a sulfur-based malodorous component of the present invention as described above, when no deodorizing treatment is applied to malodorous substances, or as in the conventional case, the peroxidation is reduced. Compared to the case where sludge is decomposed by hydrogen solution alone, malodorous components such as hydrogen sulfide, methyl mercaptan, and dimethyl sulfide are significantly reduced, and the deodorizing effect can be sufficiently exhibited. As a result, the amount of hydrogen peroxide used in deodorization can be reduced.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 1/72 - 1/78 C02F 1/58 B01D 53/34 - 53/34 136 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) C02F 1/72-1/78 C02F 1/58 B01D 53/34-53/34 136
Claims (3)
に硝酸塩として硝酸カリウムを添加した溶液で硫黄系悪
臭物質を分解処理することを特徴とする、硫黄系悪臭成
分の脱臭方法。1. A method for deodorizing a sulfur-based malodorous component, comprising decomposing a sulfur-based malodorous substance with a solution obtained by adding potassium nitrate as a nitrate to hydrogen peroxide and / or a hydrogen peroxide derivative.
に硝酸塩として硝酸ナトリウムを添加した溶液で硫黄系
悪臭物質を分解処理することを特徴とする、硫黄系悪臭
成分の脱臭方法。 2. Hydrogen peroxide and / or hydrogen peroxide derivative
Solution containing sodium nitrate as nitrate
Sulfur-based malodor characterized by decomposing malodorous substances
How to deodorize components.
に硝酸塩として硝酸カリウム及び硝酸ナトリウムを添加
した溶液で硫黄系悪臭物質を分解処理することを特徴と
する、硫黄系悪臭成分の脱臭方法。 3. Hydrogen peroxide and / or hydrogen peroxide derivative
Potassium nitrate and sodium nitrate as nitrates
Decomposes sulfur-based odorous substances with the used solution
Method for deodorizing sulfur-based malodorous components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08298595A JP3126669B2 (en) | 1996-11-11 | 1996-11-11 | Oxidative deodorization method for sulfur-based malodorous components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08298595A JP3126669B2 (en) | 1996-11-11 | 1996-11-11 | Oxidative deodorization method for sulfur-based malodorous components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10137773A JPH10137773A (en) | 1998-05-26 |
| JP3126669B2 true JP3126669B2 (en) | 2001-01-22 |
Family
ID=17861776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08298595A Expired - Fee Related JP3126669B2 (en) | 1996-11-11 | 1996-11-11 | Oxidative deodorization method for sulfur-based malodorous components |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3126669B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002045893A (en) * | 2000-08-02 | 2002-02-12 | Mitsubishi Gas Chem Co Inc | Deodorizing method |
-
1996
- 1996-11-11 JP JP08298595A patent/JP3126669B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10137773A (en) | 1998-05-26 |
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