JP2010269207A - Sludge treatment method - Google Patents

Sludge treatment method Download PDF

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JP2010269207A
JP2010269207A JP2009120628A JP2009120628A JP2010269207A JP 2010269207 A JP2010269207 A JP 2010269207A JP 2009120628 A JP2009120628 A JP 2009120628A JP 2009120628 A JP2009120628 A JP 2009120628A JP 2010269207 A JP2010269207 A JP 2010269207A
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sludge
effective
generated
microorganisms
treatment
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Hideki Morishita
日出旗 森下
Arata Morishita
新 森下
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OSAKA SEIBUTSU KANKYO KAGAKU KENKYUSHO KK
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OSAKA SEIBUTSU KANKYO KAGAKU KENKYUSHO KK
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    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing

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  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sludge treatment method, in which sludge and odorous substances are efficiently decomposed at a low cost by means of microorganisms to reduce the quantity of production of excessive sludge. <P>SOLUTION: In the sludge treatment method, the sludge 10 and the odorous substances 11 produced by an activated sludge method of waste water treatment are decomposed to reduce quantity by an effective microorganism 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、汚泥処理方法に関する。   The present invention relates to a sludge treatment method.

従来、各種工場や下水処理場の排水処理は、図３に示すように、汚濁原水が流入する流入槽１と、調整槽２、曝気槽３、沈殿槽４、そして、処理水の放流（排水）設備等を浄化ラインとして設けた活性汚泥法により行なわれている。
そして、沈殿槽４に発生した汚泥を産業廃棄物（余剰汚泥）として特許文献１記載のように乾燥させ焼却して処理していた。 Conventionally, as shown in FIG. 3, wastewater treatment at various factories and sewage treatment plants includes an inflow tank 1 into which contaminated raw water flows, a regulating tank 2, an aeration tank 3, a precipitation tank 4, and a discharge of treated water (drainage ) It is carried out by the activated sludge method with facilities etc. provided as a purification line.
And the sludge which generate | occur | produced in the sedimentation tank 4 was dried and incinerated as industrial waste (excess sludge) as described in patent document 1, and was processed.

特開昭５９−４８１２号公報JP 59-4812

産業廃棄物として処理される汚泥は、例えば大阪府では、産業廃棄物量のうち全体の６８％を占めるような場合もある。その汚泥のほとんどが、下水処理場や各種工場からの活性汚泥法により毎日膨大な量が産出される有機性の汚泥である。
これらの汚泥は、再利用率が最も低い産業廃棄物である。そして、汚泥の処理は、汚泥の脱水、乾燥、焼却、搬送、取引、設備維持等の莫大な費用や時間が必要という問題があった。また、膨大な熱エネルギを必要とするため二酸化炭素等を大量に発生させてしまうという問題があった。また、埋め立て地や焼却施設等の最終処分場の使用残余年数が少なく、処理（処分）費用が増加しているという問題があった。また、汚泥からの悪臭の問題もあった。 For example, in Osaka Prefecture, sludge treated as industrial waste may occupy 68% of the total amount of industrial waste. Most of the sludge is organic sludge that is produced in a huge amount every day by the activated sludge method from sewage treatment plants and various factories.
These sludges are industrial waste with the lowest reuse rate. The sludge treatment has a problem that enormous costs and time are required for sludge dehydration, drying, incineration, transportation, transaction, equipment maintenance, and the like. Moreover, since enormous heat energy was required, there was a problem that carbon dioxide etc. were generated in large quantities. In addition, there is a problem that the remaining disposal years of the final disposal sites such as landfills and incineration facilities are small, and the processing (disposal) costs are increasing. There was also a problem of bad odor from sludge.

そのため、汚泥の発生を減量するために、超音波処理やオゾン処理等の物理・化学的な汚泥処理方法が用いられていたが、十分な効果を発揮するためには設備や運営費用等の膨大な処理費用が必要という問題があった。
また、建築資材や農業用肥料等にリサイクル処理する場合でも膨大な熱エネルギや膨大な処理費用が必要になるという問題があった。
つまり、汚泥を単に減量するだけでなく、少ない費用で効率よく汚泥を減量する処理方法が望まれていた。 Therefore, in order to reduce the generation of sludge, physical and chemical sludge treatment methods such as ultrasonic treatment and ozone treatment have been used. There was a problem that a large processing cost was necessary.
In addition, there is a problem that enormous heat energy and enormous processing costs are required even when recycling to building materials and agricultural fertilizers.
That is, there has been a demand for a processing method that not only simply reduces sludge but also efficiently reduces sludge at low cost.

そこで、本発明は、微生物によって、汚泥及び臭気物質を安価に効率よく分解して余剰汚泥の発生量を減少可能な汚泥処理方法の提供を目的とする。   Therefore, an object of the present invention is to provide a sludge treatment method capable of reducing sludge and odorous substances efficiently at low cost and reducing the amount of excess sludge generated by microorganisms.

本発明の汚泥処理方法は、排水処理の活性汚泥法により発生した汚泥及び臭気物質を、有効微生物によって分解・減量する方法である。   The sludge treatment method of the present invention is a method for decomposing and reducing sludge and odorous substances generated by the activated sludge method of wastewater treatment with effective microorganisms.

また、排水処理の活性汚泥法により発生した分解・減量の対象となる汚泥を予め採取し、該汚泥に対する分解・減量作用につき好適性を有する有効微生物を作成又は検索して特定した後に、作成又は特定した該有効微生物を排水処理の上記活性汚泥法に用いられる最終段階の沈殿槽に発生した汚泥に付与し、その後、上記有効微生物が付与された汚泥を上記活性汚泥法に用いられる曝気槽へ返送して、汚泥及び臭気物質を分解・減量する方法である。   In addition, the sludge to be decomposed and reduced by the activated sludge method of wastewater treatment is collected in advance, and after creating or searching for effective microorganisms that are suitable for the decomposition and weight reduction action on the sludge, The identified effective microorganisms are applied to the sludge generated in the final stage sedimentation tank used in the activated sludge method for wastewater treatment, and then the sludge provided with the effective microorganisms is supplied to the aeration tank used in the activated sludge method. It is a method of returning and decomposing and reducing sludge and odorous substances.

また、上記有効微生物が、シュードモナス、プロテアバクテリア、フラボバクテリア、コリネバクテリア、アクチノバクテリア、サイトファーガ、ノカルデイア、アルカリジェネス、クロモバクテリア、ニトロソモナス、ニトロバクター、ゾーグレア、バシルス、アシネトバクター、オセアノバシルス、セルモナダシィ、デルフィア、サーモモナスの内の一種又は二種以上の組合せである。   In addition, the above effective microorganisms are Pseudomonas, Proteabacterium, Flavobacterium, Corynebacterium, Actinobacterium, Cytophaga, Nocardia, Alkaline Genes, Chromobacterium, Nitrosomonas, Nitrobacter, Zoglea, Bacillus, Acinetobacter, Oceanoacillus, Sermonadasi, Delphia , One or a combination of two or more of Thermomonas.

本発明の汚泥処理方法によれば、排水処理により発生した汚泥を、有効微生物により、効率よく分解し、約50％〜90％減量できる。発生した汚泥の輸送費等の最終処分費用を削減できる。言い換えると、従来の活性汚泥法のみ用いた方法に比べて最大で約10倍の処理能力を得ることができる。また、焼却すべき汚泥（余剰汚泥）が減量されることで膨大な熱エネルギが必要なく、省エネ効果や二酸化炭素等の排出量削減効果を得ることができる。また、悪臭の原因となる臭気物質を分解・減量できる。   According to the sludge treatment method of the present invention, sludge generated by wastewater treatment can be efficiently decomposed by effective microorganisms and reduced by about 50% to 90%. Final disposal costs such as transportation costs of generated sludge can be reduced. In other words, it is possible to obtain a processing capacity up to about 10 times that of a method using only the conventional activated sludge method. Further, since the amount of sludge to be incinerated (excess sludge) is reduced, enormous heat energy is not required, and an energy saving effect and an emission reduction effect such as carbon dioxide can be obtained. In addition, odorous substances that cause malodor can be decomposed and reduced.

本発明の汚泥処理方法の説明図である。It is explanatory drawing of the sludge processing method of this invention. 反応槽の一例を示す簡略構成図である。It is a simplified block diagram which shows an example of a reaction tank. 従来の排水処理の活性汚泥法を説明する簡略構成図である。It is a simplified block diagram explaining the activated sludge method of the conventional waste water treatment.

以下、図示の実施の形態に基づき本発明を詳説する。
本発明の汚泥処理方法は、図１に示すように、家庭排水や工場排水等からの汚濁原水20
を活性汚泥法により曝気槽13にて処理し、その後、複数段の沈殿槽14へ流し、最終段階の沈殿槽14にて処理水21と、汚泥10に分離する。その後、無害となった処理水21を放流する。また、発生した汚泥10を、産業廃棄物として処理又はリサイクル処理される余剰汚泥10Ａと、返送用の汚泥10Ｒと、に区分する。そして、返送用の汚泥10Ｒを活性汚泥法の曝気槽13とは別に設けている反応槽15に収容する。 Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
As shown in FIG. 1, the sludge treatment method of the present invention includes raw water 20 from domestic effluent and factory effluent.
Is processed in the aeration tank 13 by the activated sludge method, and then flows into the multi-stage settling tank 14, and is separated into the treated water 21 and the sludge 10 in the final settling tank 14. Thereafter, the treated water 21 that has become harmless is discharged. Further, the generated sludge 10 is classified into surplus sludge 10A that is treated or recycled as industrial waste and return sludge 10R. The return sludge 10R is accommodated in a reaction tank 15 provided separately from the aeration tank 13 of the activated sludge method.

ここで、反応槽15に収容した返送用の汚泥10Ｒに、沈殿槽14で発生した汚泥10の分解・減量・浄化等の処理に最適な有効微生物12を付（投）与する。
付与すべき有効微生物12は予め開発する。つまり、予め採取した分解・減量・浄化等の処理の対象となる活性汚泥法により発生する汚泥10に対して最も良く処理作用・効果を有する好適な有効微生物12を開発する。 Here, the returnable sludge 10R accommodated in the reaction tank 15 is provided with (injected) the optimum effective microorganisms 12 for the treatment such as decomposition, reduction, purification of the sludge 10 generated in the settling tank 14.
The effective microorganism 12 to be imparted is developed in advance. In other words, a suitable effective microorganism 12 having the best treatment action / effect is developed for the sludge 10 generated by the activated sludge method that is a target of treatment such as decomposition, reduction, purification, etc. collected in advance.

有効微生物12を開発するとは、好気的、嫌気的をも勘案して、別途、培養槽等で効率よく培養・育成されたシュードモナス、プロテアバクテリア、フラボバクテリア、コリネバクテリア、アクチノバクテリア、サイトファーガ、ノカルデイア、アルカリジェネス、クロモバクテリア、ニトロソモナス、ニトロバクター、ゾーグレア、バシルス、アシネトバクター、オセアノバシルス、セルモナダシィ、デルフィア、サーモモナス、の内の一種又は二種以上の組合せを作成又は検索して特定することである。   The effective microorganism 12 is developed by taking into consideration aerobic and anaerobic, Pseudomonas, proteabacteria, flavobacteria, corynebacteria, actinobacteria, and cytophaga which are separately cultured and cultivated efficiently in a culture tank. , Nocardia, Alkaline Genes, Chromobacteria, Nitrosomonas, Nitrobacter, Zoglea, Bacillus, Acinetobacter, Oceanovacillus, Sermonadasi, Delphia, Thermomonas, or a combination of two or more. .

処理対象となる汚泥10の種類を分析し、その汚泥10に含まれている自然発生的に増殖した微生物に関係なく有効微生物12を開発する。また、処理対象の汚泥や汚濁原水等で馴致した微生物とは関係なく有効微生物12を開発する。つまり、処理対象の汚泥10（沈殿槽に発生する汚泥10）の処理作用・効果につき最も好適性を有する微生物を意図的（人為的）に作成又は意図的に培養・育成した内から検索して特定し、有効微生物（オーダーメイド微生物）12を開発する。汚泥処理場のように様々な成分が複合した汚泥10に対応するように、複数の微生物から成る有効微生物12の組合せ（群）を作成又は特定する。   The type of sludge 10 to be treated is analyzed, and effective microorganisms 12 are developed regardless of the naturally grown microorganisms contained in the sludge 10. Moreover, the effective microorganism 12 is developed irrespective of the microorganism accustomed to the sludge to be treated or the raw polluted water. In other words, search for microorganisms that are most suitable for the treatment action / effect of the sludge 10 to be treated (sludge generated in the sedimentation tank) from intentionally (artificially) created or intentionally cultured / grown. Identify and develop effective microorganisms (custom-made microorganisms) 12. A combination (group) of effective microorganisms 12 composed of a plurality of microorganisms is created or specified so as to correspond to sludge 10 in which various components are combined as in a sludge treatment plant.

そして、開発した有効微生物12を返送用の汚泥10Ｒと共に反応槽15に入れる。有効微生物12によって汚泥10Ｒを反応槽15内で分解・減量・浄化等の処理をする。   Then, the developed effective microorganism 12 is put into the reaction tank 15 together with the sludge 10R for return. The sludge 10R is decomposed, reduced, and purified in the reaction tank 15 by the effective microorganism 12.

反応槽15は、図２の二点鎖線内に示すように、散水噴射式濾過方式であって、吸着物質担体と濾床と反応槽用曝気槽と、循環散水装置と、を備えている。有効微生物12及び汚泥10Ｒを、循環散水装置によって還流させている。
反応槽15に於ては、ｐＨの調整（ｐＨ７付近が望ましい）、空気による酸素の供給、活性剤の投与、温度調整等、有効微生物12の分解活動がより促進されるような環境づくり（条件設定）を必要に応じておこなう。また、有効微生物12を安定供給するのが望ましい。
また、反応槽15へ有効微生物12を自動供給可能なポンプや有効微生物保管槽を設けるも望ましい。 As shown in a two-dot chain line in FIG. 2, the reaction tank 15 is a water spray jet filtration system, and includes an adsorbent carrier, a filter bed, a reaction tank aeration tank, and a circulating water sprinkler. Effective microorganisms 12 and sludge 10R are recirculated by a circulating watering device.
In the reaction tank 15, an environment is created that promotes the decomposition of active microorganisms 12 (conditions such as pH adjustment (preferably around pH 7), oxygen supply by air, administration of activator, temperature adjustment, etc.) Set) if necessary. In addition, it is desirable to stably supply the effective microorganism 12.
It is also desirable to provide a pump capable of automatically supplying the effective microorganisms 12 to the reaction tank 15 and an effective microorganism storage tank.

返送用の汚泥10Ｒと有効微生物12を反応槽15に混入して、所定の時間（期間）経過後に、反応槽15内の有効微生物12が投与された汚泥10Ｒを、再び活性汚泥法の曝気槽13に返送する。返送した有効微生物12入りの汚泥10Ｒを活性汚泥法の曝気槽13内で再び分解・減量・浄化する。また、有効微生物12は、活性汚泥法の曝気槽13内で汚濁原水20を分解・浄化する。そして、沈殿槽14に発生する汚泥10を分解・浄化し、減量する。また、汚泥10に含まれる臭気物質11を分解・減量・浄化する。言い換えると、有効微生物12は、汚濁原水20から余剰汚泥10Ａ（産業廃棄物）となる汚泥10や悪臭の原因物質を分解・減量・浄化する。   Slurry 10R for return and effective microorganisms 12 are mixed into the reaction tank 15, and after a predetermined time (period) has elapsed, the sludge 10R to which the effective microorganisms 12 in the reaction tank 15 have been administered is again aerated by the activated sludge method. Return to 13. The returned sludge 10R containing effective microorganisms 12 is again decomposed, reduced, and purified in the aeration tank 13 of the activated sludge method. The effective microorganisms 12 decompose and purify the contaminated raw water 20 in the aeration tank 13 of the activated sludge method. Then, the sludge 10 generated in the settling tank 14 is decomposed and purified to reduce the amount. In addition, the odorous substance 11 contained in the sludge 10 is decomposed, reduced, and purified. In other words, the effective microorganism 12 decomposes, reduces, and purifies the sludge 10 that becomes surplus sludge 10A (industrial waste) from the polluted raw water 20 and the odor-causing substances.

上述した本発明の汚泥処理方法は、活性汚泥法の曝気槽13から流れ沈殿槽14に発生する汚泥10の一部を返送用の汚泥10Ｒとして、その汚泥10Ｒに有効微生物12を付与し、反応槽15、活性汚泥法の曝気槽13、そして、再び沈殿槽14へと循環（環流）させ、有効微生物12によって返送用の汚泥10Ｒ及び汚濁原水20から余剰汚泥10Ａとなる可能性のある汚泥10を処理すると共に返送された有効微生物12入り返送用の汚泥10Ｒによって曝気槽13内でも有効微生物12を安定して存在させ高い処理能力を維持させる方法である。そして、最終段階の沈殿槽14に発生する汚泥10は減量され、最終的に発生する余剰汚泥10Ａは僅かな量となり、僅かな余剰汚泥10Ａのみが最終処分場へ搬送される。   In the sludge treatment method of the present invention described above, a part of the sludge 10 generated in the flow settling tank 14 from the aeration tank 13 of the activated sludge method is used as the return sludge 10R, and the active microorganisms 12 are imparted to the sludge 10R to react. Circulation (circulation) to tank 15, activated sludge aeration tank 13, and settling tank 14 again, sludge 10 that may become surplus sludge 10A from sludge 10R and raw raw water 20 for return by effective microorganisms 12 In this method, the effective microorganisms 12 are stably present even in the aeration tank 13 by the sludge 10R containing the returned effective microorganisms 12 and returned to maintain the high processing capacity. And the sludge 10 which generate | occur | produces in the sedimentation tank 14 of the last stage is reduced, the surplus sludge 10A finally generated becomes a little quantity, and only a small surplus sludge 10A is conveyed to the final disposal site.

上述した本発明の汚泥処理方法は、活性汚泥法により発生する汚泥10に付着しているような（従来の活性汚泥法で用いる微生物）よりも、分解作用の優れた有効微生物12を返送用の汚泥10Ｒに付与することで大幅に汚泥10の発生を削減する。つまり、最終的に廃棄又はリサイクル処理される余剰汚泥10Ａを減量する。
例えば、従来の活性汚泥法のみで発生した汚泥から生汚泥を返送用の汚泥10Ｒとし、有効微生物12を投与した場合は１日処理90％の減量（容）が可能となる。脱水ケーキでは、水に溶解して有効微生物12で処理すると80％の減量が可能となる。 The sludge treatment method of the present invention described above is used for returning effective microorganisms 12 having an excellent decomposing action as compared to those attached to the sludge 10 generated by the activated sludge method (microorganisms used in the conventional activated sludge method). Giving sludge 10R significantly reduces the generation of sludge 10. That is, the amount of surplus sludge 10A finally discarded or recycled is reduced.
For example, when raw sludge is converted from sludge generated only by the conventional activated sludge method to return sludge 10R, and effective microorganisms 12 are administered, the daily treatment can be reduced by 90% (volume). Dehydrated cake can be reduced by 80% when dissolved in water and treated with effective microorganisms 12.

なお、本発明は設計変更自由であって、例えば、図１に於て、汚濁原水20を加圧浮上装置や電解装置等を用いた後に曝気槽13にて処理しているが、曝気槽13と、最終段階の沈殿槽14との間の工程に加圧浮上装置や電解装置等を用いるも自由である。   In the present invention, the design can be freely changed. For example, in FIG. 1, the raw polluted water 20 is treated in the aeration tank 13 after using a pressurized flotation device or an electrolysis apparatus. It is also possible to use a pressure levitation device, an electrolysis device, or the like in the process between the final stage precipitation tank 14 and the like.

以上のように、本発明は、排水処理の活性汚泥法により発生した汚泥10及び臭気物質11を、有効微生物12によって分解・減量するので、従来大量に発生した汚泥10を著しく減少できる。従って、産業廃棄物（余剰汚泥10Ａ）処理のための装置が不要となる。最終的に発生する余剰汚泥10Ａの脱水、乾燥、焼却、取引等の最終処理費用（経費）を大幅に削減できる。薬液を使用しないと共に有効微生物12は浄化後に自己分解して自然消滅するので、二次公害の虞れがなく周囲（環境）への安全性を向上できる。大型で高価な設備を増加することなく、広い設置空間を要さないため、大幅なコスト削減を可能にする。小規模な設備と有効微生物12を追加するだけで、浄化能力を容易に強化（実質的な増設）することができる。また、処理設備からの悪臭を軽減できる。   As described above, according to the present invention, since the sludge 10 and the odorous substance 11 generated by the activated sludge method for wastewater treatment are decomposed and reduced by the effective microorganisms 12, the sludge 10 that has conventionally been generated in large quantities can be significantly reduced. Therefore, an apparatus for treating industrial waste (excess sludge 10A) becomes unnecessary. The final treatment costs (expenses) such as dewatering, drying, incineration, and trading of the excess sludge 10A that is finally generated can be greatly reduced. Since the effective microorganisms 12 self-decomposes and disappears spontaneously after purification without using a chemical solution, there is no risk of secondary pollution, and safety to the environment (environment) can be improved. It does not require a large and expensive facility and does not require a large installation space, enabling a significant cost reduction. The purification capacity can be easily enhanced (substantial expansion) by simply adding small-scale equipment and effective microorganisms 12. Moreover, the bad smell from a processing facility can be reduced.

また、排水処理の活性汚泥法により発生した分解・減量の対象となる汚泥10を予め採取し、汚泥10に対する分解・減量作用につき好適性を有する有効微生物12を作成又は検索して特定した後に、作成又は特定した有効微生物12を排水処理の活性汚泥法に用いられる最終段階の沈殿槽14に発生した汚泥10に付与し、その後、有効微生物12が付与された汚泥10Ｒを活性汚泥法に用いられる曝気槽13へ返送して、汚泥10及び臭気物質11を分解・減量するので、従来大量に発生した汚泥10を著しく減少できる。従って、産業廃棄物（余剰汚泥10Ａ）処理のための装置が不要となる。最終的に発生する余剰汚泥10Ａの脱水、乾燥、焼却、取引等の最終処理費用（経費）を大幅に削減できる。薬液を使用しないと共に有効微生物12は浄化後に自己分解して自然消滅するので、二次公害の虞れがなく周囲（環境）への安全性を向上できる。大型で高価な設備を増加することなく、広い設置空間を要さないため、大幅なコスト削減を可能にする。小規模な設備と有効微生物12を追加するだけで、浄化能力を容易に強化（実質的な増設）することができる。汚れの種類や工場に応じて意図的（人為的）に有効微生物12を作成又は特定するため無駄がなく従来よりもはるかに効率の高い分解・減量・浄化率を確保することができる。また。速い処理（分解・減量・浄化）速度を得ることができる。汚泥10及び臭気物質11や未分解物の発生を大幅に削減できると共に、既存設備への適応が容易にでき、施設や工場ごとの複雑な成分に対応して汚泥10を減量できる。有効微生物12を投与するので安定した分解効率を保持できる。最適化な有効微生物12を用いることで従来の活性汚泥法のみと比較した場合に10倍近くの処理能力を得ることができる。二酸化炭素の排出量削減や省エネ化に貢献できる。また、処理設備からの悪臭を軽減できる。   In addition, after collecting in advance the sludge 10 that is the target of decomposition and weight loss generated by the activated sludge method of wastewater treatment, and creating or searching for effective microorganisms 12 that are suitable for the decomposition and weight loss action on the sludge 10, The prepared or specified effective microorganisms 12 are applied to the sludge 10 generated in the final stage sedimentation tank 14 used in the activated sludge method for wastewater treatment, and then the sludge 10R to which the effective microorganisms 12 are applied is used in the activated sludge method. Since it returns to the aeration tank 13 and the sludge 10 and the odorous substance 11 are decomposed and reduced, it is possible to significantly reduce the sludge 10 that has conventionally been generated in large quantities. Therefore, an apparatus for treating industrial waste (excess sludge 10A) becomes unnecessary. The final treatment costs (expenses) such as dewatering, drying, incineration, and trading of the excess sludge 10A that is finally generated can be greatly reduced. Since the effective microorganisms 12 self-decomposes and disappears spontaneously after purification without using a chemical solution, there is no risk of secondary pollution, and safety to the environment (environment) can be improved. It does not require a large and expensive facility and does not require a large installation space, enabling a significant cost reduction. The purification capacity can be easily enhanced (substantial expansion) by simply adding small-scale equipment and effective microorganisms 12. Since the effective microorganisms 12 are intentionally (artificially) created or specified according to the type of dirt and the factory, there is no waste and it is possible to ensure a decomposition, weight reduction, and purification rate that is much more efficient than before. Also. Fast processing (decomposition, weight loss, purification) speed can be obtained. The generation of sludge 10, odorous substances 11 and undegraded products can be greatly reduced, and adaptation to existing equipment can be facilitated, and sludge 10 can be reduced in accordance with complex components for each facility or factory. Stable degradation efficiency can be maintained because the effective microorganism 12 is administered. By using the optimized effective microorganism 12, it is possible to obtain a treatment capacity nearly 10 times that of the conventional activated sludge method alone. It can contribute to reduction of carbon dioxide emissions and energy saving. Moreover, the bad smell from a processing facility can be reduced.

また、有効微生物12が、シュードモナス、プロテアバクテリア、フラボバクテリア、コリネバクテリア、アクチノバクテリア、サイトファーガ、ノカルデイア、アルカリジェネス、クロモバクテリア、ニトロソモナス、ニトロバクター、ゾーグレア、バシルス、アシネトバクター、オセアノバシルス、セルモナダシィ、デルフィア、サーモモナスの内の一種又は二種以上の組合せであるので、より汚泥10の減量化に最適な有効微生物12を迅速に特定できる。処理すべき汚泥10に含まれている微生物とは関係なく減量・分解に最適な有効微生物12を得ることができる。様々な工場や施設の廃水から発生する汚泥10に各々最適な有効微生物12をその施設や工場単位で開発でき、各工場や施設ごとの独自の問題（油分の除去や悪臭等）と共に最終的に発生する余剰汚泥10Ａ（産業廃棄物）の発生量の問題に迅速に対応できる。   In addition, effective microorganisms 12 are Pseudomonas, Proteabacterium, Flavobacterium, Corynebacterium, Actinobacteria, Cytophaga, Nocardia, Alkaline Genes, Chromobacterium, Nitrosomonas, Nitrobacter, Zoglea, Bacillus, Acinetobacter, Oceanovacilus, Sermonadasi, Delphia Since the thermomonas are one kind or a combination of two or more kinds, the effective microorganisms 12 most suitable for reducing the sludge can be quickly identified. Regardless of the microorganisms contained in the sludge 10 to be treated, the effective microorganisms 12 that are optimal for weight reduction and decomposition can be obtained. Effective microbes 12 that are optimal for each sludge generated from wastewater from various factories and facilities can be developed for each facility and plant unit, and finally each plant and facility has its own problems (oil removal, bad odor, etc.) It can quickly cope with the problem of the amount of surplus sludge 10A (industrial waste) generated.

１ 従来の流入槽
２ 従来の調整槽
３ 従来の曝気槽
４ 従来の沈殿槽
10 汚泥
10Ａ 余剰汚泥
10Ｒ （返送用の）汚泥
11 臭気物質
12 有効微生物
13 曝気槽
14 沈殿槽
15 反応槽
DESCRIPTION OF SYMBOLS 1 Conventional inflow tank 2 Conventional adjustment tank 3 Conventional aeration tank 4 Conventional precipitation tank
10 Sludge
10A Surplus sludge
10R sludge (for return)
11 Odorous substances
12 Effective microorganisms
13 Aeration tank
14 Sedimentation tank
15 reactor

Claims (3)

排水処理の活性汚泥法により発生した汚泥（10）及び臭気物質（11）を、有効微生物（12）によって分解・減量することを特徴とする汚泥処理方法。   A sludge treatment method characterized by decomposing and reducing sludge (10) and odorous substances (11) generated by the activated sludge process of wastewater treatment with effective microorganisms (12). 排水処理の活性汚泥法により発生した分解・減量の対象となる汚泥（10）を予め採取し、該汚泥（10）に対する分解・減量作用につき好適性を有する有効微生物（12）を作成又は検索して特定した後に、作成又は特定した該有効微生物（12）を排水処理の上記活性汚泥法に用いられる最終段階の沈殿槽（14）に発生した汚泥（10）に付与し、その後、上記有効微生物（12）が付与された汚泥（10Ｒ）を上記活性汚泥法に用いられる曝気槽（13）へ返送して、汚泥（10）及び臭気物質（11）を分解・減量することを特徴とする汚泥処理方法。   Collect in advance the sludge (10) that is subject to decomposition and weight loss generated by the activated sludge method of wastewater treatment, and create or search for effective microorganisms (12) that are suitable for the decomposition and weight loss action on the sludge (10). Then, the produced or identified effective microorganism (12) is applied to the sludge (10) generated in the final stage sedimentation tank (14) used in the activated sludge method for wastewater treatment, and then the effective microorganism Sludge (10R) provided with (12) is returned to the aeration tank (13) used in the activated sludge process, and sludge (10) and odorous substance (11) are decomposed and reduced. Processing method. 上記有効微生物（12）が、シュードモナス、プロテアバクテリア、フラボバクテリア、コリネバクテリア、アクチノバクテリア、サイトファーガ、ノカルデイア、アルカリジェネス、クロモバクテリア、ニトロソモナス、ニトロバクター、ゾーグレア、バシルス、アシネトバクター、オセアノバシルス、セルモナダシィ、デルフィア、サーモモナスの内の一種又は二種以上の組合せである請求項１又は２記載の汚泥処理方法。   The effective microorganism (12) is Pseudomonas, Proteabacterium, Flavobacterium, Corynebacterium, Actinobacteria, Cytophaga, Nocardia, Alkaline Genes, Chromobacterium, Nitrosomonas, Nitrobacter, Zoglea, Bacillus, Acinetobacter, Oceanovacils, Sermonadasi, The sludge treatment method according to claim 1 or 2, which is one or a combination of two or more of Delphia and Thermomonas.
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CN112857921A (en) * 2021-03-04 2021-05-28 天津科技大学 Method for evaluating odor reduction effect of microbial agent pretreatment on dried sludge finished product in two-stage method

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