JPH04246358A - Method for removing septic malodor - Google Patents

Method for removing septic malodor

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Publication number
JPH04246358A
JPH04246358A JP3032285A JP3228591A JPH04246358A JP H04246358 A JPH04246358 A JP H04246358A JP 3032285 A JP3032285 A JP 3032285A JP 3228591 A JP3228591 A JP 3228591A JP H04246358 A JPH04246358 A JP H04246358A
Authority
JP
Japan
Prior art keywords
glyoxal
deodorizing
malodor
sulfur atoms
nitrogen atoms
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.)
Granted
Application number
JP3032285A
Other languages
Japanese (ja)
Other versions
JPH0687887B2 (en
Inventor
Ayumi Yoshida
歩 吉田
Kenji Hirota
廣田 憲司
Yasushi Seo
泰史 瀬尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shikoku Chemicals Corp
Original Assignee
Shikoku Chemicals Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shikoku Chemicals Corp filed Critical Shikoku Chemicals Corp
Priority to JP3032285A priority Critical patent/JPH0687887B2/en
Publication of JPH04246358A publication Critical patent/JPH04246358A/en
Publication of JPH0687887B2 publication Critical patent/JPH0687887B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

PURPOSE:To provide the method for efficiently removing the malodors generated by putrefaction of cattle meat, fishes, decomposition products of grains, etc., and org. materials contg. nitrogen atoms or sulfur atoms of excreta, etc., in food processing factories, garbage treating plants, toilets, night soil treating plants, etc. CONSTITUTION:This method removes the malodors by making combination use of an antisepetic agent consisting of a chlorinated isocyanuric acid compd. so the effective component, glyoxal and at least one kind of deodorizing chemicals selected from a group of iron sulfate and iron chloride with the sepetic org. materials contg. the nitrogen atoms or sulfur atoms. The amt. of the deodorizing chemicals to be used is drastically decreased.

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は窒素原子または硫黄原子
を含む有機物質、例えば蛋白質、アミノ酸及び核酸等を
構成分とする畜肉、魚介類、穀物及びこれらの加工物あ
るいはそれらが生体内に摂取され代謝されたのちの分解
産物、排泄物等が腐敗して発生する悪臭の除去方法に関
するものであり、食品加工場、塵芥処理場、便所及びし
尿処理場等において有用である。 【0002】また火力発電所または原子力発電所などの
海水を使用する施設においては、付着した貝類を定期的
に取り除く作業が行われ、その際に除去された多量の貝
が腐敗して悪臭を生じているが、本発明方法はこのよう
な悪臭の除去にも有用である。 【0003】 【従来の技術】硫化水素、アンモニア、メチルメルカプ
タン、アミン類等の窒素原子または硫黄原子を含む有機
物質が発生する悪臭を除去する方法としては、グリオキ
ザールまたは金属塩及びこれらを組み合わせた方法が提
案されている。(例えば特開昭54−154528号及
び同62− 84767号公報)  【0004】しかしながら、これらの方法は悪臭の発生
そのものを抑制する方法でなく、発生した悪臭だけを除
去するためのものであるので、悪臭物質の量が多くなる
と大量の薬剤を必要とし、経済的でなかった。 【0005】 【発明が解決しようとする課題】本発明は、窒素原子あ
るいは硫黄原子を含む有機物質が腐敗して生じる悪臭を
効率よく除去する方法を提供することにある。 【0006】 【課題を解決するための手段】本発明者等は、このよう
な事情に鑑み種々の試験を行った結果、腐敗して悪臭を
発生する窒素原子または硫黄原子を含む有機物質に、塩
素化イソシアヌル酸化合物を有効成分とする腐敗防止剤
と、グリオキザール、硫酸鉄あるいは塩化鉄の群から選
ばれた少なくとも一種の消臭薬剤を接触させることによ
って、所期の目的を達成しうることを見い出し、本発明
を完遂するに至った。 【0007】本発明で使用される代表的な腐敗防止剤と
しては、トリクロロイソシアヌル酸、ジクロロイソシア
ヌル酸、ジクロロイソシアヌル酸ナトリウム、ジクロロ
イソシアヌル酸カリウム等である。 【0008】また本発明で使用される代表的な消臭薬剤
としては、硫化水素、アンモニア、メルカプタン類、ア
ミン類などの腐敗性悪臭に対して消臭効果の優れたグリ
オキザール、硫酸第一鉄、硫酸第二鉄、塩化第一鉄、塩
化第二鉄の鉄塩から選択されるものであり、グリオキザ
ールを使用する場合には、第二リン酸ナトリウム等の緩
衝剤を用いてpHを中性域に調整した方が好ましい。 【0009】本発明に使用する腐敗防止剤の処理方法は
、窒素原子または硫黄原子を含む有機物質からなる悪臭
発生源のおかれる状態によって異なる。即ち、悪臭発生
源が液相中にある場合には、腐敗防止剤が粉末状または
溶液状のどちらでも、そのまま直接接触させることがで
きるが、悪臭発生源が気相部にある場合には、粉末状の
腐敗防止剤を水に溶解して接触させる方が効果的である
。 【0010】本発明の処理方法において、腐敗防止剤は
消臭薬剤と同時に接触させるよりも、腐敗防止剤を接触
させたのち、一定時間おいて消臭薬剤を対象物に接触さ
せることにより、効果的な消臭を行うことができる。 【0011】本発明の実施において使用する消臭薬剤の
うち、鉄塩は硫化水素、アンモニアが主に発生する現場
において有効であり、具体的にはし尿の消臭などに効果
がある。またグリオキザールは、硫化水素、アンモニア
、メルカプタン、アミン類が主に発生する現場において
有効であり、魚介類の腐敗臭、生ゴミ等の消臭に好適で
ある。 【0012】なお本発明において使用される消臭薬剤は
、夫々単独での使用のみに限定されるものではなく、場
合によっては消臭薬剤を併用することができ、その際に
は、先に鉄塩を接触させたのち、グリオキザールを接触
させる方が望ましい。 【0013】 【作用】本発明の腐敗性悪臭の除去方法によれば、腐敗
防止剤として殺菌効果を持つ塩素化イソシアヌル酸化合
物により、窒素原子または硫黄原子を含む有機化合物に
付着しているバクテリアを除去して悪臭発生源の腐敗進
行を抑制し、発生する悪臭物質を低減させて少ない消臭
薬剤の使用により悪臭を除去することができる。 【0014】 【実施例1】容積5リットルのガラス瓶2本を準備し、
一方のガラス瓶に新鮮なアサリ 361g(肉質 11
8g、貝殻 243g)と海水2リットル及び粉末状の
ジクロロイソシアヌル酸ナトリウム(SDIC) 40
0mgを添加し、他方のガラス瓶にはアサリと海水のみ
を同量添加した。これらの瓶を30℃の温度条件下に放
置し、24時間毎にpHを測定すると同時に、その都度
 300ml毎検水を採取して、硫化水素濃度とアンモ
ニア濃度を測定した。 【0015】サンプリングをしたのちは、新たに検水量
に相当する海水を補充し、ジクロロイソシアヌル酸ナト
リウムを添加している瓶については、残留塩素が検出さ
れないことを確認して、その都度ジクロロイソシアヌル
酸ナトリウム 400mgを添加した。 【0016】なおサンプリングした腐敗液中の硫化水素
濃度の測定はヨウ素滴定法により行い、アンモニア濃度
の測定はインドフェノール呈色法により行った。これら
の試験結果は、表1に示すとおりであった。 【0017】 【表1】 【0018】また、24時間毎に採取した前記の検水を
用いて、3分間スターラー攪拌した際に発生してくる硫
化水素、アンモニア、メチルメルカプタン、アミン類の
各濃度を北川式検知管を用いて測定した。これらの試験
結果は、表2に示すとおりであった。 【0019】 【表2】 【0020】腐敗が最も進行した3日目の貝腐敗液 1
00mlを用いて、検知管による各悪臭ガス濃度の測定
ができなくなるまでに要する消臭薬剤の量をみたところ
、腐敗防止剤としてジクロロイソシアヌル酸ナトリウム
を添加した場合には、硫酸第一鉄及びグリオキザールが
夫々 0.7g必要であった。一方、腐敗防止剤を添加
していない場合には、硫酸第一鉄13.7g及びグリオ
キザール 6.9gが必要であった。 【0021】 【実施例2】大規模な貝殻除去と清掃作業が行われてい
る某発電所の冷却水受入れピットにおいて、冷却水受入
れを中止してから3日目に腐敗性悪臭の消臭試験を行っ
た。第一日目に、推定総重量20tの貝と海水30m3
 が入ったピットに、ジクロロイソシアヌル酸ナトリウ
ム15kgを投入して腐敗防止を行った。翌日ピット内
の海水を汲み上げたのちに、予めジクロロイソシアヌル
酸ナトリウム15kgを溶解した 100リットルの水
をピット底部に堆積した貝に散布した。 【0022】3日目に貝殻除去と清掃作業を行う前に、
ピット内の貝腐敗液を1リットル採取し、北川式検知管
を用いて前記の検水をスターラー攪拌した際に発生して
くる各悪臭濃度を測定したところ、硫化水素濃度は85
ppm 、アンモニア濃度は20ppm 、メチルメル
カプタン濃度は58ppm 、アミン類濃度は12pp
m であった。次いで硫酸第一鉄 280kg及び20
%グリオキザール35kgを用いて消臭作業を行ったの
ち、前記と同様にして各悪臭濃度を測定したところ検知
管では測定できず、ピット内の悪臭は除去されていた。 【0023】 【実施例3】人間の新鮮な尿と大便を19:1の重量割
合で混合し、水で2倍に希釈した汚水を容積1リットル
のガラス瓶2本に夫々 150mlずつ入れ、一方の瓶
にはトリクロロイソシアヌル酸(TICA)0.15重
量部を添加し、他方の瓶には添加しなかった。これらの
瓶を温度25℃の一定条件下に放置し、24時間毎にp
H測定及び硫化水素濃度とアンモニア濃度の測定を北川
式検知管法により行った。その試験結果は表3に示すと
おりであった。 【0024】 【表3】 【0025】 【実施例4】尿と大便の割合が推定19:1である汚水
が一日当たり約5リットルの割合で排泄される二つの簡
易式トイレにおいて、腐敗性悪臭の除去試験を行った。 一方の簡易式トイレ汚水には、ジクロロイソシアヌル酸
カリウム(PDIC)5gを添加し、24時間毎に残留
塩素がないことを確認した上でその都度ジクロロイソシ
アヌル酸カリウム5gを新たに添加し、他方には全く添
加しなかった。試験を開始したのち24時間毎に、両方
のトイレ汚水を夫々 100ml採取し、北川式検知管
法により各悪臭濃度を測定したところ、その試験結果は
表4に示すとおりであった。 【0026】 【表4】 【0027】また、試験開始72時間後に採取した両方
のトイレ汚水100mlについて消臭試験を行ったとこ
ろ、悪臭が検知されなくなるまでに要する硫酸第一鉄の
量は、PDICを用いた場合は 0.9gであり、PD
ICを使用しない場合は 6.5gであった。 【0028】 【発明の効果】本発明方法によれば、腐敗防止剤が微生
物による悪臭発生源の分解を抑制して、悪臭物質の発生
を著しく低下させると共に、腐敗液のpHを常時中性付
近に維持して、硫黄系の酸性ガスあるいは窒素系のアル
カリ性ガスの過度な発生が抑止されるので、消臭薬剤の
使用量を大幅に低減して完璧な悪臭除去ができる。
Detailed Description of the Invention [0001] [Industrial Application Field] The present invention relates to organic substances containing nitrogen atoms or sulfur atoms, such as meat, seafood, grains, etc., which contain organic substances such as proteins, amino acids, and nucleic acids. It is related to a method for removing the bad odor generated by the decay of processed products, decomposition products, excreta, etc. after they are ingested and metabolized by the living body, and is used in food processing plants, garbage processing plants, toilets, and human waste processing plants. It is useful in such situations. [0002] Furthermore, in facilities that use seawater, such as thermal power plants or nuclear power plants, work is carried out to regularly remove attached shellfish, and during this process, a large amount of shellfish removed rots and produces a foul odor. However, the method of the present invention is also useful for removing such bad odors. [0003] As a method for removing bad odors generated by organic substances containing nitrogen atoms or sulfur atoms such as hydrogen sulfide, ammonia, methyl mercaptan, and amines, glyoxal or metal salts and a method using a combination thereof are used. is proposed. (For example, Japanese Patent Application Laid-open Nos. 54-154528 and 62-84767) [0004] However, these methods are not methods for suppressing the occurrence of bad odor itself, but are for removing only the bad odor that has occurred. However, when the amount of malodorous substances increases, large amounts of chemicals are required, which is not economical. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for efficiently removing bad odors caused by decomposition of organic substances containing nitrogen atoms or sulfur atoms. [Means for Solving the Problems] In view of the above circumstances, the present inventors conducted various tests and found that organic substances containing nitrogen atoms or sulfur atoms that rot and generate bad odors, It has been demonstrated that the desired purpose can be achieved by bringing an antiseptic containing a chlorinated isocyanuric acid compound as an active ingredient into contact with at least one deodorizing agent selected from the group of glyoxal, iron sulfate, or iron chloride. This discovery led to the completion of the present invention. Typical spoilage inhibitors used in the present invention include trichloroisocyanuric acid, dichloroisocyanuric acid, sodium dichloroisocyanurate, potassium dichloroisocyanurate, and the like. Typical deodorizing agents used in the present invention include glyoxal, ferrous sulfate, and It is selected from iron salts of ferric sulfate, ferrous chloride, and ferric chloride. When using glyoxal, the pH is adjusted to a neutral range using a buffer such as dibasic sodium phosphate. It is preferable to adjust to [0009] The method for treating the antiseptic agent used in the present invention differs depending on the condition of the source of malodor, which is an organic substance containing nitrogen or sulfur atoms. That is, if the source of malodor is in the liquid phase, the antiseptic agent can be brought into direct contact with it, whether in powder or solution form, but if the source of malodor is in the gas phase, It is more effective to dissolve a powdered antiseptic agent in water and bring it into contact. In the treatment method of the present invention, rather than bringing the anti-septic agent into contact with the deodorizing agent at the same time, the anti-septic agent is brought into contact with the object, and then the deodorizing agent is brought into contact with the object for a certain period of time. Deodorization can be performed. Among the deodorizing agents used in the practice of the present invention, iron salts are effective at sites where hydrogen sulfide and ammonia are mainly generated, and are specifically effective in deodorizing human waste. Furthermore, glyoxal is effective at sites where hydrogen sulfide, ammonia, mercaptans, and amines are mainly generated, and is suitable for deodorizing rotten seafood odors, garbage, etc. [0012] The deodorants used in the present invention are not limited to being used alone; in some cases, deodorants can be used together, and in that case, the iron It is preferable to contact glyoxal after contacting the salt. [Operation] According to the method for removing putrefactive odors of the present invention, the chlorinated isocyanuric acid compound, which has a bactericidal effect as a putrefactive agent, eliminates bacteria attached to organic compounds containing nitrogen atoms or sulfur atoms. By removing the malodor, it is possible to suppress the progress of decomposition at the source of the malodor, reduce the amount of malodorous substances generated, and eliminate the malodor by using a small amount of deodorizing agent. [Example 1] Two glass bottles with a volume of 5 liters were prepared,
361g fresh clams (flesh quality 11) in one glass bottle
8 g, shells 243 g), 2 liters of seawater and powdered sodium dichloroisocyanurate (SDIC) 40
0 mg was added, and equal amounts of only clams and seawater were added to the other glass bottle. These bottles were left under a temperature condition of 30° C., and the pH was measured every 24 hours, and at the same time, 300 ml of water was sampled each time to measure the hydrogen sulfide concentration and ammonia concentration. [0015] After sampling, replenish seawater equivalent to the amount of sampled water, confirm that no residual chlorine is detected in the bottles containing sodium dichloroisocyanurate, and add dichloroisocyanuric acid each time. 400 mg of sodium was added. [0016] The hydrogen sulfide concentration in the sampled putrid fluid was measured by the iodometric titration method, and the ammonia concentration was measured by the indophenol coloring method. The results of these tests are shown in Table 1. [Table 1] [0018] Also, using the above sample water sampled every 24 hours, each concentration of hydrogen sulfide, ammonia, methyl mercaptan, and amines generated when stirring with a stirrer for 3 minutes. was measured using a Kitagawa detector tube. The results of these tests were as shown in Table 2. [Table 2] [0020] Decayed shellfish liquid on the 3rd day when the decomposition is most advanced 1
00ml to determine the amount of deodorizing agent required until the concentration of each malodorous gas could no longer be measured with a detection tube, it was found that when sodium dichloroisocyanurate was added as a spoilage inhibitor, ferrous sulfate and glyoxal were added. 0.7g of each was required. On the other hand, when no antiseptic agent was added, 13.7 g of ferrous sulfate and 6.9 g of glyoxal were required. [Example 2] A deodorization test for putrid odor was conducted on the third day after the cooling water intake was stopped at a cooling water receiving pit of a certain power plant where large-scale shell removal and cleaning work was being carried out. I did it. On the first day, shellfish with an estimated total weight of 20 tons and seawater 30m3
15 kg of sodium dichloroisocyanurate was put into the pit containing the waste to prevent spoilage. The next day, after pumping up the seawater in the pit, 100 liters of water in which 15 kg of sodium dichloroisocyanurate had been dissolved was sprayed onto the shellfish deposited at the bottom of the pit. [0022] Before carrying out shell removal and cleaning work on the third day,
One liter of the rotten shellfish liquid in the pit was sampled, and when the test water was stirred using a Kitagawa detection tube, the concentration of each odor emitted was measured, and the concentration of hydrogen sulfide was 85.
ppm, ammonia concentration is 20 ppm, methyl mercaptan concentration is 58 ppm, amine concentration is 12 ppm
It was m. Next, 280 kg of ferrous sulfate and 20
After performing deodorizing work using 35 kg of %glyoxal, the concentration of each malodor was measured in the same manner as above, but it could not be measured with the detection tube, indicating that the malodor in the pit had been removed. [Example 3] Fresh human urine and feces were mixed at a weight ratio of 19:1, sewage was diluted twice with water, and 150 ml of each was poured into two 1-liter glass bottles. 0.15 parts by weight of trichloroisocyanuric acid (TICA) was added to one bottle and not to the other bottle. These bottles were left under constant conditions at a temperature of 25°C and plucked every 24 hours.
Measurements of H and hydrogen sulfide and ammonia concentrations were carried out using the Kitagawa detection tube method. The test results were as shown in Table 3. [Table 3] [Example 4] In two portable toilets in which sewage with an estimated ratio of urine to feces of 19:1 is excreted at a rate of approximately 5 liters per day, putrefactive odors were detected. A removal test was conducted. Add 5g of potassium dichloroisocyanurate (PDIC) to the wastewater of one simple toilet, and after confirming that there is no residual chlorine every 24 hours, add another 5g of potassium dichloroisocyanurate each time. was not added at all. After starting the test, 100 ml of sewage from both toilets was collected every 24 hours, and the concentration of each odor was measured using the Kitagawa detection tube method. The test results were as shown in Table 4. [Table 4] [0027] In addition, when a deodorization test was conducted on 100 ml of wastewater from both toilets collected 72 hours after the start of the test, the amount of ferrous sulfate required until no odor was detected was found to be When using PD, it is 0.9g, and PD
When no IC was used, the amount was 6.5 g. [0028] According to the method of the present invention, the antiseptic agent suppresses the decomposition of the source of the malodor by microorganisms, significantly reduces the generation of malodorous substances, and keeps the pH of the rotting liquid close to neutral at all times. Since the excessive generation of sulfur-based acidic gas or nitrogen-based alkaline gas is suppressed, the amount of deodorizing chemicals used can be greatly reduced and bad odors can be completely removed.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  腐敗して悪臭を発生する窒素原子また
は硫黄原子を含む有機物質に、塩素化イソシアヌル酸化
合物を有効成分とする腐敗防止剤とグリオキザール、硫
酸鉄及び塩化鉄の群から選ばれた少なくとも一種の消臭
薬剤を接触させることを特徴とする腐敗性悪臭の除去方
法。
Claim 1: An antiseptic agent containing a chlorinated isocyanuric acid compound as an active ingredient and an antiseptic agent selected from the group of glyoxal, iron sulfate, and iron chloride for organic substances containing nitrogen atoms or sulfur atoms that decompose and produce a bad odor. A method for removing a putrid odor, the method comprising contacting with at least one type of deodorizing agent.
JP3032285A 1991-01-31 1991-01-31 How to remove spoilage Expired - Fee Related JPH0687887B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3032285A JPH0687887B2 (en) 1991-01-31 1991-01-31 How to remove spoilage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3032285A JPH0687887B2 (en) 1991-01-31 1991-01-31 How to remove spoilage

Publications (2)

Publication Number Publication Date
JPH04246358A true JPH04246358A (en) 1992-09-02
JPH0687887B2 JPH0687887B2 (en) 1994-11-09

Family

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Country Status (1)

Country Link
JP (1) JPH0687887B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105131902A (en) * 2015-08-20 2015-12-09 安徽爱弥儿环境科技有限公司 Safe and potent sterilization deodorant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154528A (en) * 1978-05-24 1979-12-05 Okada Fusenzai Kagaku Kk Solid deodorant
JPS5810052A (en) * 1981-07-10 1983-01-20 株式会社日立製作所 Deodorizing and odor preventing treating agent
JPS6284767A (en) * 1985-10-11 1987-04-18 キャピタル株式会社 Deodorizing liquid
JPH0280051A (en) * 1988-09-15 1990-03-20 Ipposha Oil Ind Co Ltd Sterilizing and deodorizing high molecule
JPH02223524A (en) * 1989-02-27 1990-09-05 Sakai Eng Kk Antimicrobial and deodorization treating agent

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154528A (en) * 1978-05-24 1979-12-05 Okada Fusenzai Kagaku Kk Solid deodorant
JPS5810052A (en) * 1981-07-10 1983-01-20 株式会社日立製作所 Deodorizing and odor preventing treating agent
JPS6284767A (en) * 1985-10-11 1987-04-18 キャピタル株式会社 Deodorizing liquid
JPH0280051A (en) * 1988-09-15 1990-03-20 Ipposha Oil Ind Co Ltd Sterilizing and deodorizing high molecule
JPH02223524A (en) * 1989-02-27 1990-09-05 Sakai Eng Kk Antimicrobial and deodorization treating agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105131902A (en) * 2015-08-20 2015-12-09 安徽爱弥儿环境科技有限公司 Safe and potent sterilization deodorant

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