JP3751530B2 - Waste oil treatment agent and waste oil treatment method - Google Patents

Waste oil treatment agent and waste oil treatment method Download PDF

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JP3751530B2
JP3751530B2 JP2001047364A JP2001047364A JP3751530B2 JP 3751530 B2 JP3751530 B2 JP 3751530B2 JP 2001047364 A JP2001047364 A JP 2001047364A JP 2001047364 A JP2001047364 A JP 2001047364A JP 3751530 B2 JP3751530 B2 JP 3751530B2
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waste oil
actinomycetes
medium
moss
waste
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JP2002247976A (en
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米實 田中
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米實 田中
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、食品加工工場、ホテル、レストラン、家庭などから日々大量に排出される廃油もしくはその含有物の処理剤及び廃油もしくはその含有物の処理方法に関するものである。
【0002】
【従来の技術】
従来、廃油は吸収剤などで固めて焼却するか、下水処理槽で生物活性処理するなどして処理されていた。
しかしながら、焼却には高い燃料費を要し、また生物活性処理も長時間を要するなど、廃油の廃棄処理は困難をきわめたものであった。
また、乳製品の廃棄物などは廃棄プールに長時間放置され、その間に上面に浮いた油が腐敗して異臭を放ち、困惑されているものであり、すみやかな処置が望まれているものであった。
【0003】
【発明が解決しようとする課題】
本発明では、微生物によって廃油と接触させ、資化させ炭酸ガスと水にまで分解し、残渣は堆肥にしてしまい、自然界にクリーンに循環させることを課題とした。
【0004】
【課題を解決するための手段】
本発明においては、畜糞、生ごみ、汚泥、もみがら、餡粕、バーク、紙その他放線菌又は黴類培地材料の1以上を含む培地に放線菌又は黴類を接種、培養し、得られた放線菌又は黴類増殖培地を廃油処理剤とした。この廃油処理剤を乳製品の廃棄プールの廃油面に散布し、直ちに廃油の分解を開始させることにより、油が腐敗して発する異臭を消してしまうことができる。
また、本発明における、畜糞、生ごみ、汚泥、もみがら、餡粕、バーク、紙その他放線菌又は/及び黴類培地材料の1以上を含む培地に放線菌又は/及び黴類を接種、培養し、得られた放線菌又は/及び黴類増殖培地からなる廃油処理剤を天ぷら工場などの食品加工工場の廃油の廃棄プールに散布し、廃油を分解させ、残った処理物は堆肥とすることができる。
また、本発明においては、畜糞、生ごみ、汚泥、もみがら、餡粕、バーク、紙その他放線菌又は/及び黴類培地材料の1以上を含む放線菌又は/及び黴類培地に放線菌又は/及び黴類を接種、培養し、得られた放線菌又は/及び黴類増殖培地に廃油を添加し、混合し又は吸収させ、培養することによって、油分を放線菌又は/及び黴類によって資化させ、廃油をなくしてしまうことができたものである。
【0005】
一般に、微生物によって廃油を処理する場合、水性液中で微生物のリパーゼによって高分子有機酸とグリセリンに分解して水溶性にし、これを活性汚泥処理して浄化することが行なわれている。
これに対して、本発明では、固相の放線菌又は/及び黴類増殖培地と廃油とを接触させるか、固相の放線菌又は/及び黴類増殖培地と廃油とを混合するか、又はしみ込ませ、油分を放線菌又は/及び黴類菌体と直接接触させ、放線菌又は/及び黴類に油を分解資化させて、炭酸ガスと水にまで分解してしまうもので、高分子有機酸やグリセリンなどをほとんど残さないで処理することができる。
【0006】
本発明において使用する放線菌又は/及び黴類培地の調製は重要であり、廃油の油質に応じて分解が効率よく行なわれる放線菌又は/及び黴類培地にすることが必要である。
放線菌又は/及び黴類培地としては、放線菌又は/及び黴類がよく増殖する材料であればいずれでもよいが、鶏糞、牛糞、豚糞などの畜糞、生ごみ、屎尿処理物や食品工場の汚泥などが基本となり、これにもみがら、餡粕、バーク、シュレッダーにかけた紙など通気性をよくする材料を混合して放線菌又は/及び黴類培地が調製される。
【0007】
この培地には0.5〜10%程度の生石灰、炭酸カルシウムなどのカルシウム化合物及び/又は重炭酸ソーダなどのナトリウム化合物及び/又はリン酸カリなどのカリ化合物や各種塩類を含む焼却灰などを添加、混合し、廃油の分解中も培地のpHを7.2〜7.8に維持調整することもできる。
【0008】
放線菌としては、高温放線菌、中温放線菌、低温放線菌のいずれもが単用ないし併用でき、例えば次のような放線菌が例示される:ストレプトミセス属(Streptomyces griseolus IFO 12777、Streptomyces fungicidicus IFO 13344、Streptomyces thermophilus ATCC 19822等)、ノカルジア属(Nocardia erythropolia IFO 12682等)、ミクロモノスポラ属(Micromonospora purpures ATCC 15835等)、アクチノミセス属(Actinomyces griseoruber ATCC 12466等)、アクチノビフィダ属(Actinobifida dichotomica IFO 12466等)、サーモアクチノミセス属(Thermoactinomyces glaucus IFO 12530等)、サーモモノスポラ属(Thermomonospora viridis IFO 12207等)などがあげられる。
黴類としては、油質を分解できるものであればいかなる属の菌でもよいが、例示としてはペニシリウム属(ペニシリウム クリソゲナムIFO4626等)、アスペルギルス属(アスペルギルス ニガーIFO4407、アスペルギルス アワモリIFO4033、アスペルギルス カンディダスIFO4311等)などがあげられる。
【0009】
本発明に使用する種菌としては、放線菌又は/及び黴類の1種のみでもよいが、高温放線菌、中温放線菌、低温放線菌の中から選んだ2種でも、3種でも、4種以上でもよく、またこれにアスペルギルス ニガーなどを混合してもよい。
種菌又は混合種菌を水に懸濁し、牛糞培地に散布し、25〜35℃程度で、1日に1〜3回程度撹拌しながら、5〜15日程度の培養で十分に増殖する。増殖したものを、培地のまま本培養の種菌として使用することができる。
ここに得られる種菌は最初の廃油の分解処理培地の種菌として使用するが、連続して廃油の分解処理を行う場合は、分解処理の完了した培地からその1部をとり、種菌として使用することもできる。
【0010】
本発明における放線菌又は/及び黴類培地としては、牛糞、鶏糞、豚糞、生ごみ、汚泥などを基本とし、これに通気性をよくするために、もみがら、バーク、餡粕、紙などを混合したものが使用される。
例えば、容量で牛糞100Lともみがら50L及び餡粕50Lを混合したものが一般的でよい。
放線菌及び/又は黴類の種菌を接種した培地は、時折撹拌し、5〜15日程度培養したものは、全体がよく乾燥し、大量の放線菌及び/又は黴類を含んでおり、そのまますぐれた廃油の処理剤となる。
ここに得られた放線菌及び/又は黴類増殖培地は本発明の廃油処理剤となる。この廃油処理剤を大量に製造し、これを廃油プールや廃油の浮上した食品製造工場廃液プールなどに大量投入すれば、乾燥した廃油処理剤は上面一杯に拡がり、廃油と接触、吸収し、放線菌及び/又は黴類が直ちに分解をはじめ、油分を分解、資化してしまう。
【0011】
また、廃油プールなど油分が大量の場合、これ以上に大量の乾燥した廃油処理剤を投入し、廃油を吸収させ、時折耕耘機などで撹拌することによって5〜15日程度で油分はなくなり、その後は堆肥として使用することができるようになる。
【0012】
廃棄牛乳などで浮上した油分はすぐ腐敗をはじめ異臭を発するのであるが、本発明の廃油処理剤を散布すれば、乾燥した粉状になった培地が一面に拡がって廃油と接触、吸収し、油分の分解をはじめ、異臭はなくなり、培地は沈降するので、全体を曝気処理し、炭粉を投入、混合し、汚泥を浮上させ、排水を流下、分離することができる。
【0013】
廃油を回収して、大量の廃油を処理する場合は、別の方法がとられる。
放線菌及び/又は黴類を培養する装置としては、通気装置と撹拌装置をつけた培養タンクがあげられるが、大量の廃油を処理するためには屋根付きで、攪拌機を入れることのできるプール状のコンクリート製培養槽がよい。
【0014】
培養タンク又は培養槽に放線菌及び/又は黴類の培地材料の1以上を入れ、必要な場合は生石灰や焼却灰などを添加し、更に必要な場合は水を散布して、よく撹拌し、培地の水分含量を50〜60%に調整して、用意する。
【0015】
新たに製造するか、又は循環して使用する種菌としての放線菌又は/及び黴類を散布し、1日に1〜3回程度撹拌して、5日後には、やや乾燥し、放線菌又は/及び黴類が十分に繁殖した状態が観察される。
【0016】
本発明で回収して処理する廃油としては、乳製品、油ちょう食品などの食品製造にともなう廃油、機械工場からの廃油、木ろう工場などのろう処理工場からの廃ろうなどがあり、あらゆる廃油を分解処理することができる。
【0017】
やや乾燥し、放線菌又は/及び黴類が十分に繁殖した状態の菌増殖培地100kgに対し、廃油1〜30kg、好ましくは5〜15kg程度が添加される。
添加された廃油は、そのまま又は撹拌によって、すみやかに放線菌又は/及び黴類増殖培地に吸収され、発酵がはじまる。
発酵中は1日1〜3回程度の撹拌を行い、通気性をよくして、発酵を促進させるとよい。
【0018】
廃油の分解の日数は、廃油の種類によって異なるが、乳製品工場の廃油はかなり分解が早く、5〜7日でほとんど分解される。
また、木ろう工場の廃ろうは、固状であるために、よく混合して処理しても2〜3週間かかって分解される。
【0019】
廃油の分解処理の終った放線菌又は/及び黴類増殖培地には、再び同じ廃油又は別の廃油を添加して、分解処理を行うことができる。
このくり返し分解処理は、放線菌又は/及び黴類にその能力がある限り行うことができるが、5〜10回程度使用したところで、新しい放線菌又は/及び黴増殖培地にとりかえて廃油の処理をするのがよい。
【0020】
使用ずみの放線菌又は/及び黴増殖培地は、そのまますぐれた堆肥として使用することができる。
【0021】
〔廃油の分解度の検査法〕
実施例において廃油の減少度を検査する場合に油の構成成分である各種脂肪酸の量の減少を測定した。
廃油と本発明で分解処理した培地を各別にソックスレー抽出器にかけて脂質を抽出し、脂質をケン化し、そのエーテル抽出液をガスクロマトグラフにかけ、それぞれ図示した。
次に実施例を示す。
【0022】
【実施例1】
屋内に高さ1m、1m×5m(すべて内側)のコンクリート製の培養槽を作り、上方には、培地を撹拌する攪拌機を降下可能にとりつけておく。
この培養槽に、乾燥牛糞100Lともみがら50Lと小豆のこしあん粕50Lを混合し、更に消石灰3kgを混合して、培養槽の50cm高さまで入れ込む。
【0023】
別に、牛糞にストレプトミセス ファンジサイデイカスIFO13344を接種し、7日間培養したものを種菌として、上記培養槽内の培地に散布し、全体を攪拌機によって、よく撹拌し、後7日間、1日1回撹拌し、培養を行い、放線菌増殖培地を得る。ここに得られる放線菌増殖培地は、そのまま本発明の廃油処理剤となる。
【0024】
培養槽の放線菌増殖培地に廃牛乳20Lを流し込むと、培地が廃牛乳を吸収するので、全体を撹拌し、後1日2回撹拌し、5日間培養し、分解処理した。
【0025】
ここで、処理前の廃牛乳5gと5日間分解処理後の培地50g(廃牛乳5gが処理された分に相当)を前記〔廃油の分解度の検査法〕に従って処理し、各ガスクロマトグラフを図1に示した。
これによって、高分子脂肪酸はほとんどなくなっており、乳脂肪が、本発明の分解処理によって、ほとんど資化されたのが分る。
【0026】
【実施例2】
種菌に使用する放線菌をストレプトミセス グリセオルスIFO12777に変更し、実施例1と同様に処理して、放線菌増殖培地を得る。
この培地に、木ろう、鯨ろう、蜂蜜ろうをそれぞれ各別に10kgづつ添加し、よく撹拌し、全体を撹拌し、後1日1回撹拌し、16日間培養し、分解処理した。
【0027】
ここで、処理前の木ろう、鯨ろう、蜂蜜ろうの各5gを、前記〔廃油の分解度の検査法〕に従って処理し、各クロマトグラフを図2に示した。
また、16日間分解処理した各培地25g(各ろう5gが処理された分に相当)を前記〔廃油の分解度の検査法〕に従って処理し、各ガスクロマトグラフを図3に示した。
図2及び図3から木ろう、鯨ろう、蜂蜜ろうであってもC18はほとんどなくなっており、本発明の分解処理によって、かなり資化されているのが分る。
【0028】
【発明の効果】
本発明においては、畜糞等の放線菌又は/及び黴類培地に放線菌又は/及び黴類を大量に増殖させた放線菌又は/及び黴類増殖培地に廃油を添加して、油分を分解資化させることができた。
【図面の簡単な説明】
【図1】本発明の実施例1において、廃牛乳の処理前と処理後の脂肪酸組成のガスクロマトグラフを示す図である。
【図2】本発明の実施例2において、木ろう、鯨ろう、蜂蜜ろうの処理前の脂肪酸組成のガスクロマトグラフを示す図である。
【図3】本発明の実施例3において、木ろう、鯨ろう、蜂蜜ろうの処理後の脂肪酸組成のガスクロマトグラフを示す図である。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a treatment agent for waste oil or its inclusions discharged daily from food processing factories, hotels, restaurants, homes, etc., and a method for treating waste oil or its inclusions.
[0002]
[Prior art]
Conventionally, waste oil has been treated by solidifying with an absorbent or the like and incinerating it, or by biologically treating it in a sewage treatment tank.
However, incineration requires high fuel costs, and bioactive treatment requires a long time, and waste oil disposal has been extremely difficult.
In addition, dairy wastes are left in the waste pool for a long time, and the oil floating on the upper surface decays and gives off a strange odor. there were.
[0003]
[Problems to be solved by the invention]
In this invention, it made it the subject to contact waste oil with microorganisms, to assimilate, decompose | disassemble to carbon dioxide gas and water, and to make a residue into compost and to circulate cleanly in nature.
[0004]
[Means for Solving the Problems]
In the present invention, inoculated and cultured actinomycetes or moss in a medium containing one or more of livestock excrement, food waste, sludge, rice husk, straw, bark, paper or other actinomycetes or moss medium material Actinomycetes or moss growth medium was used as a waste oil treatment agent. By spraying this waste oil treating agent on the waste oil surface of the waste pool of the dairy product and immediately starting the decomposition of the waste oil, it is possible to eliminate the off-flavor generated by the oil rot.
Further, in the present invention, inoculation and culture of actinomycetes or / and moss in a medium containing one or more of animal manure, food waste, sludge, rice husk, straw, bark, paper and other actinomycetes or / and moss medium materials Disperse the waste oil treatment agent consisting of the resulting actinomycetes and / or moss growth medium into a waste oil waste pool of a food processing factory such as a tempura factory, decompose the waste oil, and make the remaining treated product compost Can do.
In the present invention, animal dung, food waste, sludge, rice husk, straw, bark, paper, other actinomycetes or / and fungi medium containing at least one actinomycete or / and fungi medium, actinomycetes or Inoculate and cultivate moss, add waste oil to the resulting actinomycetes or / and moss growth medium, mix or absorb, and culture, so that the oil can be contributed by actinomycetes or / and moss. And was able to eliminate waste oil.
[0005]
In general, when waste oil is treated with microorganisms, it is decomposed into a water-soluble polymer organic acid and glycerin by microbial lipase in an aqueous solution, and this is purified by treating with activated sludge.
In contrast, in the present invention, solid-phase actinomycetes or / and moss growth medium and waste oil are contacted, solid-phase actinomycetes or / and moss growth medium and waste oil are mixed, or Impregnating oil, bringing oil into direct contact with actinomycetes or / and mosses, causing actinomycetes or / and moss to decompose and assimilate the oil into carbon dioxide and water. It can be processed with almost no organic acid or glycerin left.
[0006]
The preparation of the actinomycetes or / and moss medium used in the present invention is important, and it is necessary to make the actinomycetes or / and the moss culture medium efficiently decomposed according to the oil quality of the waste oil.
The actinomycete or / and moss medium may be any material as long as actinomycetes or / and moss grow well, but livestock excrement such as chicken dung, cow dung, pig dung, etc., food waste, manure processed products and food factories The sludge etc. are the basis, and the actinomycete or / and moss culture medium is prepared by mixing materials that improve air permeability, such as papers that have been applied to rice cake, bark, and shredder.
[0007]
About 0.5 to 10% quick lime, calcium compounds such as calcium carbonate and / or sodium compounds such as sodium bicarbonate and / or potassium compounds such as potassium phosphate and incineration ash containing various salts are added to this medium and mixed. In addition, the pH of the medium can be maintained and adjusted to 7.2 to 7.8 even during the decomposition of the waste oil.
[0008]
As actinomycetes, any of high temperature actinomycetes, medium temperature actinomycetes, and low temperature actinomycetes can be used singly or in combination. For example, the following actinomycetes are exemplified: Streptomyces griseolus IFO 12777, Streptomyces fungicidicus IFO 13344, Streptomyces thermophilus ATCC 19822 etc.), Nocardia genus (Nocardia erythropolia IFO 12682 etc.), Micromonospora genus (Micromonospora purpures ATCC 15835 etc.), Actinomyces genus (Actinomyces griseoruber ATCC 12466 etc.), Actinobifidacho 12 ), Thermoactinomyces genus (Thermoactinomyces glaucus IFO 12530 and the like), Thermomonospora genus (Thermomonospora viridis IFO 12207 and the like) and the like.
As the moss, bacteria of any genus may be used as long as they can decompose oil, but examples include Penicillium genus (Penicillium chrysogenum IFO4626 etc.), Aspergillus genus (Aspergillus niger IFO4407, Aspergillus awamori IFO4033, Aspergillus Candidas IFO4311 etc.) Etc.
[0009]
The inoculum used in the present invention may be only one of actinomycetes and / or moss, but two, three or four species selected from high temperature actinomycetes, medium temperature actinomycetes, and low temperature actinomycetes. The above may be used, and Aspergillus niger or the like may be mixed therewith.
The inoculum or mixed inoculum is suspended in water, sprayed on cow dung medium, and sufficiently grown in culture for about 5 to 15 days with stirring at about 25 to 35 ° C. about 1 to 3 times a day. The proliferated one can be used as an inoculum for the main culture while maintaining the medium.
The inoculum obtained here is used as the inoculum of the first waste oil decomposition treatment medium. However, when the waste oil is continuously decomposed, take a part of the digested medium and use it as the inoculum. You can also.
[0010]
As actinomycetes or / and moss culture medium in the present invention, cow dung, chicken dung, pig dung, food waste, sludge, etc. are basically used, and rice bran, bark, straw, paper, etc. in order to improve the air permeability. A mixture of these is used.
For example, a mixture of 100 L of cow dung with 50 L of rice bran and 50 L of straw is generally acceptable.
The medium inoculated with actinomycetes and / or moss inoculum is occasionally stirred and cultured for about 5 to 15 days. The whole is well dried and contains a large amount of actinomycetes and / or moss. It becomes an excellent waste oil treatment agent.
The actinomycetes and / or moss growth medium obtained here becomes the waste oil treating agent of the present invention. If this waste oil treatment agent is produced in large quantities and then put into a waste oil pool or a waste liquid pool of a food manufacturing plant where waste oil has floated, the dried waste oil treatment agent spreads over the top surface and comes in contact with, absorbs and absorbs waste oil. Fungi and / or moss begin to decompose immediately, and decompose and assimilate the oil.
[0011]
In addition, when there is a large amount of oil such as a waste oil pool, a large amount of dried waste oil treatment agent is added, the waste oil is absorbed, and occasionally stirred with a tiller, etc., so that the oil is removed in about 5 to 15 days. Will be able to be used as compost.
[0012]
Oil that emerged from waste milk etc. immediately starts to spoil and emits a strange odor, but if the waste oil treatment agent of the present invention is sprayed, the dry powdered medium spreads across the surface and contacts and absorbs waste oil, Starting with the decomposition of the oil, the odor disappears and the medium settles, so that the whole can be aerated, mixed with charcoal powder, mixed, the sludge floated, and the wastewater flowed down and separated.
[0013]
When recovering waste oil and processing a large amount of waste oil, another method is taken.
As a device for cultivating actinomycetes and / or moss, a culture tank equipped with an aeration device and a stirrer can be mentioned, but in order to treat a large amount of waste oil, it is covered with a pool and can be equipped with a stirrer. A concrete culture tank is good.
[0014]
Put one or more actinomycetes and / or moss medium material in the culture tank or culture tank, add quick lime or incinerated ash, etc. if necessary, spray water if necessary, and stir well. Prepare by adjusting the water content of the medium to 50-60%.
[0015]
Sprinkle actinomycetes or / and moss as an inoculum that is newly produced or used in circulation, stir about 1 to 3 times a day, and after 5 days, slightly dry, actinomycetes or / And the state that the moss has fully propagated is observed.
[0016]
Examples of the waste oil recovered and processed in the present invention include waste oil from food production such as dairy products and oily foods, waste oil from machine factories, and wax from waste processing plants such as a brazing plant. Can be decomposed.
[0017]
Waste oil is added in an amount of 1 to 30 kg, preferably about 5 to 15 kg, with respect to 100 kg of the bacterial growth medium in a slightly dried state in which actinomycetes and / or mosses are sufficiently propagated.
The added waste oil is immediately absorbed into the actinomycetes or / and moss growth medium as it is or with stirring, and fermentation begins.
During fermentation, it is preferable to stir about 1 to 3 times a day to improve air permeability and promote fermentation.
[0018]
The number of days of waste oil decomposition varies depending on the type of waste oil, but the waste oil in dairy factories decomposes fairly quickly, and is almost decomposed in 5-7 days.
In addition, because the waste wax in the brazing plant is solid, it takes two to three weeks to decompose even if mixed well.
[0019]
The same waste oil or another waste oil can be added again to the actinomycetes and / or moss growth medium after the waste oil decomposition treatment, and the decomposition treatment can be performed.
This repeated decomposition treatment can be carried out as long as the ability of actinomycetes and / or moss has the ability, but when used about 5 to 10 times, the waste oil is treated with a new actinomycetes or / and cocoon growth medium. It is good to do.
[0020]
The used actinomycetes and / or cocoon growth medium can be used as excellent compost as it is.
[0021]
[Inspection method for degree of degradation of waste oil]
In the examples, when the degree of reduction of waste oil was examined, the reduction in the amount of various fatty acids that are constituents of the oil was measured.
The waste oil and the culture medium decomposed in the present invention were separately subjected to Soxhlet extractors to extract lipids, saponified lipids, and the ether extracts were subjected to gas chromatographs, respectively.
Next, examples will be described.
[0022]
[Example 1]
A concrete culture tank having a height of 1 m and 1 m × 5 m (all inside) is made indoors, and a stirrer for stirring the medium is attached to the upper side so as to be lowered.
In this culture tank, 100 L of dried cow dung and 50 L of red bean paste and 50 L of red bean paste are mixed, and 3 kg of slaked lime is further mixed and put to a height of 50 cm in the culture tank.
[0023]
Separately, cow dung was inoculated with Streptomyces fungisidecus IFO 13344, cultured for 7 days as a seed fungus, sprayed on the medium in the above culture tank, the whole was thoroughly stirred with a stirrer, and after 7 days 1 Stir twice and culture to obtain actinomycetes growth medium. The actinomycete growth medium obtained here becomes the waste oil treating agent of the present invention as it is.
[0024]
When 20 L of waste milk was poured into the actinomycetous growth medium in the culture tank, the medium absorbed the waste milk. Therefore, the whole was stirred, then stirred twice a day, cultured for 5 days, and decomposed.
[0025]
Here, 5 g of waste milk before treatment and 50 g of medium after decomposition for 5 days (corresponding to 5 g of waste milk treated) were treated according to the above [Method for Degradation of Waste Oil Decomposition], and each gas chromatograph was plotted. It was shown in 1.
As a result, almost no high molecular weight fatty acid was found, and it was found that milk fat was almost assimilated by the decomposition treatment of the present invention.
[0026]
[Example 2]
The actinomycete used for the inoculum is changed to Streptomyces glyceolus IFO12777 and treated in the same manner as in Example 1 to obtain an actinomycete growth medium.
To this medium, 10 kg each of wood wax, whale wax, and honey wax was added separately, stirred well, the whole was stirred, then stirred once a day, cultured for 16 days, and decomposed.
[0027]
Here, 5 g each of wood wax, whale wax, and honey wax before treatment were treated according to the above-mentioned [Inspection Method for Degradation of Waste Oil], and each chromatograph is shown in FIG.
Further, 25 g of each medium decomposed for 16 days (corresponding to 5 g of each wax treated) was treated according to the above [Inspection Method for Degradation of Waste Oil], and each gas chromatograph is shown in FIG.
2 and 3, it can be seen that C 18 is almost lost even in the case of wood wax, whale wax, and honey wax, and is considerably utilized by the decomposition treatment of the present invention.
[0028]
【The invention's effect】
In the present invention, waste oil is added to actinomycetes or / and moss growth medium in which a large amount of actinomycetes or / and mosses are grown on actinomycetes such as livestock dung and / or moss culture media, and the oil is decomposed. I was able to make it.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a gas chromatograph of fatty acid composition before and after treatment of waste milk in Example 1 of the present invention.
FIG. 2 is a diagram showing a gas chromatograph of fatty acid composition before processing wax, wax, and honey wax in Example 2 of the present invention.
FIG. 3 is a diagram showing a gas chromatograph of fatty acid composition after treatment of wood wax, whale wax, and honey wax in Example 3 of the present invention.

Claims (1)

畜糞、もみがら、餡粕を混合した培地にストレプトミセス グリセオルス(Streptomyces griseolus)IFO 12777を接種、培養し、得られた増殖培地を廃油又は廃油含有物と接触させて攪拌しながら培養し、廃油を分解、資化せしめること、を特徴とする廃油の処理方法。 Streptomyces griseolus IFO 12777 was inoculated into a medium mixed with animal manure, rice husk, and straw , cultured, and the resulting growth medium was brought into contact with waste oil or waste oil-containing material, and cultured while stirring. A method for treating waste oil, characterized by decomposing and assimilating .
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