JP4415273B2 - Organic sludge treatment facility - Google Patents

Organic sludge treatment facility Download PDF

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JP4415273B2
JP4415273B2 JP2005371498A JP2005371498A JP4415273B2 JP 4415273 B2 JP4415273 B2 JP 4415273B2 JP 2005371498 A JP2005371498 A JP 2005371498A JP 2005371498 A JP2005371498 A JP 2005371498A JP 4415273 B2 JP4415273 B2 JP 4415273B2
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海昇 菅
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株式会社アーステクノ
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本発明は、有機質汚泥の処理システム及び有機質汚泥の処理施設に係り、特に、大量に持ち込まれる有機質汚泥の処理を行う有機質汚泥の処理施設に関する。 The present invention relates to an organic sludge treatment system and an organic sludge treatment facility , and more particularly, to an organic sludge treatment facility for treating a large amount of organic sludge.

近時の経済、社会生活の高度化は、大量消費と大量投棄を生み出し、それによって環境汚染を生じさせて社会問題となっている。大量投棄により排出される廃棄物には、事業所からのごみ、生産業者が排出する廃棄物、畜産糞尿、食品汚泥、家庭から排出される生ごみ、下水道汚泥等がある。これらのうちで、一般産業廃棄物中での大きな割合を占める食品汚泥については、近時の法改正によりそれらの製造、加工の過程において生じたものは肥料等の原材料として再利用することが数値目標を掲げての国民の使命として位置づけられている。すなわち、処理に要する手間や時間、コストを考えると有機質汚泥(食品製造会社が排出する有機ごみ、外食事業者が排出する生ごみ、畜産糞尿、家庭から排出される生活ごみ、その他の食品汚泥を含む)の処理が重要でかつ早急に実現されなければならない問題である。有機汚泥の処理方法については、文献1、2のように従来から種々の提案がなされている。   The recent sophistication of economy and social life has caused mass consumption and mass dumping, thereby causing environmental pollution and becoming a social problem. Examples of waste discharged by mass dumping include waste from business establishments, waste discharged by producers, livestock manure, food sludge, domestic waste discharged from households, and sewer sludge. Among these, food sludge, which accounts for a large proportion of general industrial waste, is a numerical value that is reused as raw material for fertilizer, etc., as a result of the recent revision of the law, in the process of production and processing It is positioned as the mission of the public with goals. In other words, considering the labor, time, and cost required for processing, organic sludge (organic waste discharged by food manufacturing companies, food waste discharged by dining companies, livestock manure, household waste discharged from households, and other food sludge) Is a problem that must be realized as soon as possible. About the processing method of organic sludge, various proposals are conventionally made like literatures 1 and 2.

特開2002−35795号JP 2002-35795 A 特開2005−74328号JP 2005-74328 A

上記の特許文献1の有機汚泥の処理装置は、処理槽内の脱水室に濾布を張設し、その上方を汚泥脱水処理室、下方を脱水濾液室とし、脱水処理室に送気するとともに濾液室を複数の空気室に区画し、各圧力空気室に高圧送気と濾液排出を行わせることにより濾布を逆洗浄してその目詰まりを防止させるようにしたものである。また、特許文献2では、アンモニアを含む有機汚泥を脱水した脱水ケーキが乾燥される乾燥機から発生する高温の乾燥排ガスを、有機汚泥から分離された分離液のアンモニアストリッピングを行う蒸留塔でのキャリアガスとして用いることにより、乾燥排ガスの凝縮手段とその凝縮液の水処理を不要にして、処理設備をコンパクトにしたものである。しかしながら、これらの従来の技術は、いずれもせいぜい事業者単独の施設内での有機廃棄物の処理についてのものであり、いずれも、種々のしかも大量の有機質汚泥を受け入れて毎日処理し、肥料化するものではなく、例えば20t程度の日々大量に発生する有機質汚泥処理には対応できないものであった。また、設備コスト、稼働コストが高価となり現実には大量処理設備の実用化についての難点があった。   The organic sludge treatment apparatus of Patent Document 1 has a filter cloth stretched in a dehydration chamber in a treatment tank, and a sludge dehydration treatment chamber is provided above and a dehydration filtrate chamber is provided below, and air is supplied to the dehydration treatment chamber. The filtrate chamber is partitioned into a plurality of air chambers, and each pressure air chamber is subjected to high-pressure air supply and filtrate discharge to reversely wash the filter cloth to prevent clogging. Further, in Patent Document 2, a high-temperature dry exhaust gas generated from a dryer in which a dewatered cake obtained by dehydrating organic sludge containing ammonia is dried in a distillation column that performs ammonia stripping of a separated liquid separated from organic sludge. By using it as a carrier gas, the processing equipment is made compact by eliminating the need for condensing means for dry exhaust gas and water treatment of the condensate. However, all of these conventional technologies are related to the treatment of organic waste within the facilities of a single operator. All of these conventional technologies accept various and large amounts of organic sludge and treat them daily. For example, it could not cope with organic sludge treatment that occurs in large quantities every day, for example, about 20 tons. In addition, the equipment cost and the operating cost are expensive, and there has been a difficulty in practical use of mass processing equipment.

本発明は、上記従来の課題に鑑みてなされたものであり、その1つの目的は、簡単な構成で日々大量に発生する有機質系廃棄物を確実に処理し、しかも効率よく短期間に処理し、かつ、これを肥料化することのできる有機質汚泥の処理方法及び有機質汚泥の処理施設を提供することにある。 The present invention has been made in view of the above-described conventional problems, and one object of the present invention is to reliably process organic waste generated in a large amount every day with a simple configuration, and to efficiently process it in a short time. Another object of the present invention is to provide an organic sludge treatment method and an organic sludge treatment facility that can be used as fertilizer.

上記の目的を達成するために、本発明は、搬入される有機質汚泥に対して所定割合で微生物を着床させた粉体を混合させて所要粒径に破砕する破砕混合部12と、破砕混合後の有機質汚泥を切り返し処理を行ないつつ貯留して養生する一次貯留部14と、一次貯留部14での処理後の有機質汚泥を収容し空気を供給しつつ有機質汚泥を発酵処理する発酵処理部16と、を有し、発酵処理部16は、併設された複数の密閉室装置18を含み、該密閉室装置18は、有機質汚泥が投入静置される密閉室181〜188と、密閉室内に投入された有機質汚泥中に加温空気を注入する加温空気注入管32と、有機質汚泥が微生物発酵して発生する蒸気を含む空気を吸引排出する吸引排出部34と、吸引された気体を脱臭させる脱臭部36と、を有し、1つの敷地内に破砕混合部12と一次貯留部14とが前処理部として中央搬送空間22を中間に配した対向位置に配置されるとともに、発酵処理部16の複数の密閉処理室が破砕混合部12と一次貯留部14にそれぞれ隣接並置され、かつ、中央搬送空間22を中間に配した対向位置に配置され、密閉室181〜188は、それぞれ有機質汚泥の搬入日量の少なくとも2倍以上の容積で8個以上が配置されていることを特徴とする有機質汚泥の処理施設から構成される。 In order to achieve the above object, the present invention includes a crushing and mixing unit 12 that mixes a powder in which microorganisms are implanted at a predetermined ratio with respect to organic sludge to be carried in, and crushes the powder to a required particle size. and organic sludge primary reservoir 14 for curing and accumulating while performing crosscut handle post fermentation processing unit 16 for fermentation treatment of organic sludge while supplying air containing the organic sludge after treatment in the primary reservoir 14 When having a fermentation process unit 16 includes a plurality of sealed chambers 18 that are features, the sealed chamber 18 includes a sealed chamber 181 to 1 88 organic sludge is turned stand, the enclosed chamber A heated air injection pipe 32 for injecting heated air into the input organic sludge, a suction / discharge section 34 for sucking and discharging air containing vapor generated by microbial fermentation of the organic sludge, and deodorizing the sucked gas Deodorizing part 36 In one site, the crushing and mixing unit 12 and the primary storage unit 14 are arranged as opposed to the central transport space 22 in the middle as a pretreatment unit, and the plurality of sealed processing chambers of the fermentation processing unit 16 are crushed and mixed. respectively adjacent juxtaposed parts 12 and primary reservoir 14, and are disposed on opposite positions arranged central transfer space 22 to the intermediate, sealed chamber 181-1 88 is at least two times or more carry-date amount of organic sludge, respectively It is composed of a treatment facility for organic sludge characterized in that eight or more are arranged in the volume.

その際、密閉室181〜190内に投入された有機質汚泥中への加温空気温度は、25度〜35度であるとよい。 At that time, the temperature of the heated air into the organic sludge put into the sealed chambers 181 to 190 is preferably 25 degrees to 35 degrees.

本発明の有機質汚泥の処理施設によれば、搬入される有機質汚泥を破砕しつつ微生物を着床させた粉体を混合させる破砕混合部と、破砕混合後の有機質汚泥を貯留して養生する一次貯留部と、空気を供給された有機質汚泥を発酵処理する発酵処理部と、を有し、発酵処理部は、併設された複数の密閉室装置を含み、該密閉室装置は、有機質汚泥が投入静置される密閉室と、密閉室内に投入された有機質汚泥中に加温空気を注入する加温空気注入管と、有機質汚泥が微生物発酵して発生する蒸気を含む空気を吸引排出する吸引排出部と、吸引された気体を脱臭させる脱臭部と、を有し、各密閉室は、有機質汚泥の搬入日量の少なくとも2倍以上の容積であり、破砕混合、一次貯留を含む4日以内の前処理と、2週間の密閉室発酵と、を複数の密閉室について順次、連続して行うことにより、投入日量に対応する有機質汚泥を毎日処理するから、簡単な構成で日々大量に発生する有機質系廃棄物を確実に処理し、しかも効率よく短期間に処理し、かつ、これを肥料化することができる。 According to the organic sludge treatment facility of the present invention, a crushing and mixing unit for mixing the powder on which the microorganisms are implanted while crushing the organic sludge to be carried in, and the primary for storing and curing the organic sludge after crushing and mixing A storage unit and a fermentation processing unit for fermenting organic sludge supplied with air, and the fermentation processing unit includes a plurality of enclosed chamber devices, and the sealed chamber device is charged with organic sludge A closed chamber, a heated air injection pipe for injecting heated air into the organic sludge charged into the sealed chamber, and a suction exhaust for sucking and discharging air containing vapor generated by microbial fermentation of the organic sludge And a deodorizing part for deodorizing the sucked gas, and each sealed chamber has a volume that is at least twice as large as the amount of organic sludge carried in, and within 4 days including crushing mixing and primary storage Multiple pre-treatments and two-week closed-chamber fermentation Since the organic sludge corresponding to the input daily amount is processed every day by carrying out the chamber sequentially and continuously, the organic waste generated in large quantities every day with a simple configuration can be reliably processed and efficiently and in a short period of time. It can be processed and fertilized.

また、密閉室内に投入された有機質汚泥中への加温空気温度は、25度〜35度とすることにより、好気性微生物による処理対象の有機質汚泥の好気性発酵を促し、良好な条件により短時間での発酵作用を行わせることができる。   In addition, the temperature of the heated air into the organic sludge charged into the sealed chamber is set to 25 to 35 degrees to promote the aerobic fermentation of the organic sludge to be treated by the aerobic microorganisms. Fermentation over time can be performed.

また、本発明の有機質汚泥の処理方法によれば、有機質汚泥を破砕しつつ微生物を着床させた粉体を混合させる工程と、混合後の有機質汚泥を貯留して切り返し操作で空気を供給する工程と、空気を供給された有機質汚泥を密閉室内に投入静置し加温空気を室内の底部から連続して吹出して有機質汚泥中に注入する工程と、密閉室内の有機質汚泥が微生物発酵し発熱により室内空気部に蒸散させる工程と、室内空気部への蒸散とともに密閉室内の気体を吸引して換気させる工程と、吸引された気体を脱臭させる工程と、を含み、該密閉室を複数併設して、順次作業により、24時間以内で処理投入量と少なくとも同量相当の有機質汚泥発酵処理を行う構成であるから、簡単な構成で日々大量に発生する有機質系廃棄物を確実に処理し、しかも効率よく短期間に処理し、かつ、これを肥料化することを実現することが可能である。 In addition, according to the organic sludge treatment method of the present invention, the step of mixing the powder on which the microorganisms are implanted while crushing the organic sludge, and storing the organic sludge after mixing and supplying air by a reversing operation The process, the step of introducing the organic sludge supplied with air into the sealed room and allowing it to stand still, then blowing the heated air continuously from the bottom of the room and injecting it into the organic sludge; Including a step of transpiration into the indoor air portion, a step of sucking and ventilating the gas in the sealed chamber together with the transpiration to the indoor air portion, and a step of deodorizing the sucked-in gas. In addition, because it is configured to perform organic sludge fermentation treatment equivalent to at least the same amount as the input of processing within 24 hours by sequential work, organic waste generated in large quantities every day can be reliably processed with a simple configuration, and Rate well treated short time, and this can be achieved that the fertilizer.

さらに、密閉室内の有機質汚泥中への加温空気温度が25度〜35度であり、微生物発酵は、有機質汚泥内部温度が60℃程度に上昇する一次発酵工程と、その後さらに発酵を促進して85℃程度となる二次発酵工程と、を含むことにより、好気性微生物による処理対象の有機質汚泥の好気性発酵を促し、良好な条件により短時間での発酵作用を行わせることができる。   Furthermore, the temperature of the heated air into the organic sludge in the sealed chamber is 25 to 35 degrees C., and the microbial fermentation promotes the fermentation after the primary fermentation step in which the internal temperature of the organic sludge rises to about 60 ° C. By including the secondary fermentation step at about 85 ° C., the aerobic fermentation of the organic sludge to be treated by the aerobic microorganism can be promoted, and the fermentation action can be performed in a short time under good conditions.

以下、添付図面を参照しつつ本発明を実施するための最良の形態について説明する。本発明の有機質汚泥の処理システム及び有機質汚泥の処理方法は、下水道汚泥、生活生ごみ、家畜糞尿、食品残渣物その他の有機質汚泥の処理手段を提供し、特に、日々排出される大量の有機質廃棄物を簡単な設備で、かつ、比較的に小さなスペースでの設置により、短期間で確実に処理できる有機質汚泥の処理システム及びその方法を提供する。本システム及び方法は、食品生産工場、一般事業所、家庭等から排出される有機質廃棄物、畜産肥育場等から排出される家畜糞尿、その他の有機廃棄物をも対象として処理する。   The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The organic sludge treatment system and the organic sludge treatment method of the present invention provide a means for treating sewage sludge, domestic waste, livestock manure, food residue and other organic sludge, and in particular, a large amount of organic waste discharged daily. Disclosed is an organic sludge treatment system and method capable of reliably treating materials in a short period of time by installing them with simple facilities and in a relatively small space. The present system and method also treats organic waste discharged from food production factories, general business establishments, households, etc., livestock manure discharged from livestock feed farms, and other organic waste.

図1ないし図3は、本発明の実施形態に係る有機質汚泥の処理システム及びそれを実現する装置あるいは設備を示しており、図1において、該有機質汚泥の処理システムは、有機質汚泥を破砕しつつ微生物を着床させた粉体を混合させる破砕混合部12と、破砕混合後の有機質汚泥を貯留して養生する一次貯留部14と、空気を供給された有機質汚泥を発酵処理する発酵処理部16と、を有し、発酵処理部は、併設された複数の密閉室装置18を含む。   1 to 3 show an organic sludge treatment system according to an embodiment of the present invention and an apparatus or facility for realizing the system, and in FIG. 1, the organic sludge treatment system crushes organic sludge. A crushing and mixing unit 12 that mixes the powder on which the microorganisms are implanted, a primary storage unit 14 that stores and cures the organic sludge after crushing and mixing, and a fermentation processing unit 16 that ferments the organic sludge supplied with air. The fermentation processing unit includes a plurality of sealed chamber devices 18 provided side by side.

図1の実施形態では、短壁201、長壁202がそれぞれ対向設置されて長四角形状の敷地に長四角形状の外壁が立設され、壁の上端に屋根203が架設されて処理施設20が形成されている。処理施設20の床部の幅方向中央部には、片端から他方端にわたって横方向に搬送レーン22が設けられ、左右の短壁201には開閉扉201a,201bが設けられ、さらに左短壁201に隣接する長辺壁の一部に出入り口202aが形成されている。   In the embodiment of FIG. 1, the short wall 201 and the long wall 202 are opposed to each other, a long rectangular outer wall is erected on the long rectangular site, and a roof 203 is installed on the upper end of the wall to form the processing facility 20. Has been. A transport lane 22 is provided in the lateral direction from one end to the other end in the center in the width direction of the floor of the processing facility 20, open doors 201a and 201b are provided in the left and right short walls 201, and the left short wall 201 is further provided. An entrance / exit 202a is formed in a part of the long side wall adjacent to.

処理施設20内部は、図1上、左奥から右側に順にストックヤード24、破砕混合部12及び発酵処理部16aがそれぞれ仕切壁W1、W2に仕切られて配置され、処理施設20内部手前側は、破砕混合部12に対向し搬送レーン22を間に挟んで仕切壁W3、W4で仕切られて一次貯留部14が設けられ、さらに、その右側に発酵処理部16bが配置されている。さらに、発酵処理部16a、16bに隣接して袋詰め処理部26が設けられている。   In the processing facility 20, the stock yard 24, the crushing and mixing unit 12, and the fermentation processing unit 16 a are arranged in order from the left rear side to the right side in FIG. The primary storage unit 14 is provided so as to be opposed to the crushing and mixing unit 12 and partitioned by the partition walls W3 and W4 with the conveyance lane 22 therebetween, and the fermentation processing unit 16b is disposed on the right side thereof. Further, a bagging processing unit 26 is provided adjacent to the fermentation processing units 16a and 16b.

ストックヤードに搬入される汚泥は、一般に含水率80%程度である。破砕混合部12は、外部から搬入されてストックヤード24に貯留されている有機質汚泥を破砕しつつ微生物を着床させた粉体を混合させる部位であり、例えばバトルミキサ28からなる混合破砕機が設置されて、そのホッパから、処理すべき有機質汚泥とともに微生物を着床させたパウダを投入し、塊状に固着した汚泥を破砕するとともに、微生物パウダを有機質汚泥に混合させる。混合破砕機を通した微生物を含む汚泥は、例えば5mm粒径程度に粒径が調整される。微生物パウダは、例えばゼオライト、バーミキュライト、オガ粉等を加熱殺菌したものに、バクテリアを培養して得た一次菌体を着床させた液を霧散布して微生物を含むパウダとしたものであり、この微生物パウダを例えば汚泥10に対して重量比1:10程度の割合で投入させ、混合攪拌させる。微生物を含むパウダは、ある程度の湿度を有して調製される。着床される微生物としては、例えばストレプトコッカス、サッカロマイセス、バチルスサブタイル、コリネバクテリウム等がある。   The sludge carried into the stockyard generally has a moisture content of about 80%. The crushing and mixing unit 12 is a part that mixes the powder in which microorganisms are implanted while crushing the organic sludge that is brought in from the outside and stored in the stock yard 24. From the hopper, the powder in which the microorganisms are deposited together with the organic sludge to be treated is introduced from the hopper, the sludge stuck in a lump is crushed, and the microbial powder is mixed with the organic sludge. The particle diameter of the sludge containing microorganisms passed through the mixing crusher is adjusted to about 5 mm particle diameter, for example. Microbial powder is, for example, a powder containing microorganisms by spraying a liquid in which primary cells obtained by culturing bacteria are spray-sprayed on zeolite, vermiculite, sawdust, etc. For example, the microbial powder is added to the sludge 10 at a weight ratio of about 1:10 and mixed and stirred. Powders containing microorganisms are prepared with a certain degree of humidity. Examples of the microorganism to be implanted include Streptococcus, Saccharomyces, Bacillus subtile, and Corynebacterium.

一次貯留部14は、破砕混合後の有機質汚泥を貯留して養生する一次貯留手段であり、例えば、上面が開口し、長四角形状に壁で仕切られた内部に破砕混合後の有機質汚泥を投入し、攪拌羽根その他の切り返し装置を用いて汚泥が腐敗しないように切り返し操作で汚泥中に空気を供給する空気の供給装置を備えている。一次貯留部14で一次貯留し次工程の発酵処理部16に処理対処汚泥を搬入させるまでに待機させるとともに、発酵しやすい状態に混合攪拌後の汚泥を安定させ、養生させる。破砕混合部12、一次貯留部14は、発酵処理前の前処理工程を行いつつ、密閉室181〜188への所要量投入時期を待機する前処理部あるいは前処理工程を構成する。   The primary storage unit 14 is a primary storage means for storing and curing organic sludge after crushing and mixing. For example, the organic sludge after crushing and mixing is introduced into an interior having an upper surface opened and partitioned by a long rectangular wall. In addition, an air supply device for supplying air into the sludge by a reversing operation is provided so that the sludge is not spoiled using a stirring blade or other reversing device. The primary storage unit 14 performs primary storage and waits until the processing treatment sludge is carried into the fermentation processing unit 16 of the next process, and the sludge after mixing and stirring is stabilized and cured in a state that facilitates fermentation. The crushing and mixing unit 12 and the primary storage unit 14 constitute a pre-processing unit or a pre-processing step that waits for a required amount input time to the sealed chambers 181 to 188 while performing a pre-processing step before the fermentation process.

図1において、発酵処理部16は、同じ処理施設20内に配置された複数の密閉室装置18を含む。すなわち、破砕混合部12に壁を挟んでつぎつぎに連続隣接するように第1の密閉室群Cm1が設置されるとともに、搬送レーン22を間に挟んで該密閉室群Cm1に対向して連続隣接する第2密閉室群Cm2が設置されている。第1密閉室群Cm1は、壁W5〜W7を挟んで隣り合うように隣接する4個の密閉室181〜184を有すると共に、第2密閉室群Cm2も同様の併設構成で壁W8〜W10を挟んで隣り合うように隣接する個の密閉室185〜188を有している。それぞれの密閉室181〜188は、搬送レーン22側に開閉ドア30を有し、背面壁Wbと、外壁Wt、並びに天井壁Wcにより、仕切られてある程度の気密を保持した状態に閉鎖されている。 In FIG. 1, the fermentation processing unit 16 includes a plurality of sealed chamber devices 18 arranged in the same processing facility 20. That is, the first sealed chamber group Cm1 is installed so as to be successively adjacent to each other with the wall sandwiched between the crushing and mixing unit 12, and continuously adjacent to the sealed chamber group Cm1 with the transport lane 22 therebetween. A second sealed chamber group Cm2 is installed. The first sealed chamber group Cm1 has four sealed chambers 181 to 184 adjacent to each other across the walls W5 to W7, and the second sealed chamber group Cm2 also includes the walls W8 to W10 with the same side-by-side configuration. There are four adjacent sealed chambers 185 to 188 so as to be adjacent to each other. Each of the sealed chambers 181 to 188 has an opening / closing door 30 on the transfer lane 22 side, and is closed by a back wall Wb, an outer wall Wt, and a ceiling wall Wc so as to be kept airtight to some extent. .

密閉室181〜188は、有機汚泥を投入して静置し、微生物発酵させる密閉閉鎖式の発酵槽であり、実施形態において、該密閉室は、それぞれ大容量の空間を有している。すなわち、各密閉室は、有機質汚泥の搬入日量の少なくとも2倍以上の容積を有して構成されている。例えば、ストックヤード24に搬入される日量が20トンとすると、各密閉室は、例えば85トンあるいはそれ以上の汚泥を収容可能な大きさで構成されている。そして、密閉室へ投入する例えば80トンの処理対象汚泥が前処理工程としての一次貯留部14に4日以内程度で貯留され、各密閉室内へは貯留された例えば80トンの汚泥が一度に各密閉室に投入される。すなわち、日々搬入される汚泥を各密閉室容量以内の所要量まで蓄積し、この間腐敗をしないように管理して所要量の蓄積完了後にいっぺんに1つの密閉室に汚泥を投入し、各密閉室についてこれを順次行っていくものである。これによって、密閉室内での有機質汚泥の発酵管理を簡単に行えると共に、処理を確実に行える。   The sealed chambers 181 to 188 are closed and closed fermenters that are charged with organic sludge and allowed to stand for microbial fermentation. In the embodiment, each sealed chamber has a large capacity space. That is, each sealed chamber has a volume that is at least twice as large as the amount of organic sludge carried in. For example, if the daily amount carried into the stockyard 24 is 20 tons, each sealed chamber is configured to have a size that can accommodate, for example, 85 tons or more of sludge. Then, for example, 80 tons of processing target sludge to be put into the sealed chamber is stored in the primary storage unit 14 as a pretreatment process within about 4 days, and for example, 80 tons of sludge stored in each sealed chamber is stored at a time. It is thrown into the sealed room. That is, the sludge that is brought in every day is accumulated to the required amount within the capacity of each sealed room, and it is managed so as not to be spoiled during this time, and after the accumulation of the required amount is completed, the sludge is put into one sealed room at a time. This is done sequentially. This makes it possible to easily manage the fermentation of organic sludge in a sealed room and to reliably perform the treatment.

図1ないし図3において、密閉室装置18は、さらに加温空気注入管32と、吸引排出部34と、脱臭部36と、を備えている。加温空気注入管32は、図2、3に示すように、例えばコンクリート製床に複数条(例えば3個)の並列溝38を凹設し、それぞれの溝内に埋め込み状に配設されており、外周に多数の空気噴出孔40を形成した金属管から構成されている。空気噴出孔40からは常温程度、例えば25℃〜35℃程度の加温空気が外部に向けて放散される。したがって、密閉室内に処理すべき有機質汚泥を投入して加温空気を噴出させるから該加温空気は直接に有機質汚泥中に注入される。このとき、加温空気の有機質汚泥中への空気は、密閉室内の有機質汚泥の嵩高さの70%〜90%程度の到達距離となる噴射圧により加温空気が注入管32から噴射される。これによって、微生物発酵による自然な温度上昇が汚泥中水分を蒸発させ、密閉室内の残余空気部42に放出される。   1 to 3, the sealed chamber device 18 further includes a heated air injection pipe 32, a suction / discharge unit 34, and a deodorization unit 36. As shown in FIGS. 2 and 3, the heated air injection pipe 32 has, for example, a plurality of (for example, three) parallel grooves 38 formed in a concrete floor, and is embedded in each groove. It is composed of a metal tube having a large number of air ejection holes 40 formed on the outer periphery. From the air ejection hole 40, warm air of about room temperature, for example, about 25 ° C. to 35 ° C. is diffused toward the outside. Therefore, since the organic sludge to be treated is introduced into the sealed chamber and the heated air is ejected, the heated air is directly injected into the organic sludge. At this time, the heated air is injected from the injection pipe 32 into the organic sludge of the heated air with an injection pressure that reaches a distance of about 70% to 90% of the bulkiness of the organic sludge in the sealed chamber. As a result, the natural temperature rise due to microbial fermentation evaporates the water in the sludge and releases it to the residual air section 42 in the sealed chamber.

図1、2に示すように、密閉室181〜188の背面側に機械室44が設置されており、該機械室44内に各密閉室に対応してブロワ46及びヒータ48を含む加温空気注入駆動装置49が設置され、ヒータ48は対応する密閉室の加温空気注入管32と配管50を介して連通接続されている。それぞれのブロワ46及びヒータ48は、図示しない制御装置に電気的に接続されており、温度センサ56により検出した室内温度と設定室内温度との差が設定範囲となるようにそれぞれの装置をオン、オフさせ、風量調節、温度調節機能を行って、適当な吹出し風量と設定温度に密閉室内温度が調節される。なお、これらの調節は、作業者が手動により行うようにしてもよく、摘み等の調節操作により、加温空気注入管32からの所望の吹出し風量と温度調節により例えば25℃〜35℃で、上記の設定された噴出量あるいは速度で加温空気が加温空気注入管32から汚泥内部に注入させてもよい。   As shown in FIGS. 1 and 2, a machine room 44 is installed on the back side of the sealed chambers 181 to 188, and heated air including a blower 46 and a heater 48 corresponding to each sealed chamber in the machine room 44. An injection driving device 49 is installed, and the heater 48 is connected in communication with the warmed air injection pipe 32 and the pipe 50 in the corresponding sealed chamber. Each blower 46 and heater 48 are electrically connected to a control device (not shown), and each device is turned on so that the difference between the room temperature detected by the temperature sensor 56 and the set room temperature falls within the set range. The closed room temperature is adjusted to an appropriate blown air volume and set temperature by turning off and adjusting the air volume and temperature. These adjustments may be performed manually by an operator, for example, at 25 ° C. to 35 ° C. by adjusting the desired blown air volume and temperature from the heated air injection pipe 32 by adjusting operations such as knobs. The heated air may be injected from the heated air injection pipe 32 into the sludge at the set ejection amount or speed.

吸引排出部34は、有機質汚泥が微生物発酵して発生する蒸気を含む空気を密閉室内から吸引排出する吸引排出手段であり、本実施形態において、各密閉室の背面壁Wbに取付けられた吸引ファン52を含む。さらに、この吸引ファン52に連通して脱臭部36としての脱臭装置が密閉室外部に設けられており、吸引ファンを駆動して吸引排出された密閉室内の高温空気が脱臭装置に送られ、脱臭後の空気は水ジャケット等を配備させた冷却装置で中温程度の温度に冷却されて、ブロワ46に通じる配管により外部からの新鮮空気と共にブロワ側に供給されて加温空気注入管32から再び噴出されて還流するか、あるいは外気放出、その他の適宜の方法で処理される。脱臭装置は、木炭、竹炭、ゼオライト、オガ粉等を複数の層に層分けして充填したタンク内に密閉室の有機質汚泥から発生する蒸気を含む空気を通すことにより、臭気を取りだす。   The suction discharge unit 34 is a suction discharge unit that sucks and discharges air containing vapor generated by microbial fermentation of organic sludge from the sealed chamber. In this embodiment, the suction fan is attached to the back wall Wb of each sealed chamber. 52. Further, a deodorizing device as a deodorizing unit 36 is provided outside the sealed chamber in communication with the suction fan 52, and the high-temperature air in the sealed chamber sucked and discharged by driving the suction fan is sent to the deodorizing device. The latter air is cooled to an intermediate temperature by a cooling device provided with a water jacket or the like, supplied to the blower side along with fresh air from the outside through a pipe leading to the blower 46, and again ejected from the heated air injection pipe 32 Then, it is refluxed, or it is treated by an appropriate method such as release of outside air. The deodorization device takes out odors by passing air containing steam generated from organic sludge in a sealed chamber through a tank filled with charcoal, bamboo charcoal, zeolite, sawdust, etc. in a plurality of layers.

そして、該密閉室装置18のそれぞれの密閉室に前処理が完了する4日以内、すなわち、本実施形態では4日連続で破砕混合工程と一次貯留工程を使用し、その後、14日連続で密閉室181〜188内での発酵処理を行う。有機質汚泥の各密閉室内への搬入後に、密閉室内に投入された有機質汚泥中への加温空気の注入を開始し、これをすべての密閉室について順次、連続して行うことにより、例えば日々搬入される日量20トン程度の大量の有機質汚泥を確実に処理することができる。その結果、毎日20トン程度の有機質汚泥を処理設備内に搬送させて保持させることができ、かつ、これら20トンの汚泥を毎日確実に堆肥化処理することができる。   Then, within 4 days when the pretreatment is completed in each sealed chamber of the sealed chamber device 18, that is, in this embodiment, the crushing and mixing step and the primary storage step are used continuously for 4 days, and then sealed for 14 days continuously. A fermentation process is performed in the chambers 181 to 188. After the organic sludge is brought into each sealed room, injection of warm air into the organic sludge put into the sealed room is started, and this is carried out sequentially and continuously for all the sealed rooms, for example, every day. A large amount of organic sludge with a daily volume of about 20 tons can be reliably treated. As a result, about 20 tons of organic sludge can be transported and held in the processing facility every day, and the 20 tons of sludge can be reliably composted every day.

本実施形態では、この処理は、8個の密閉室装置により行うようにしているが、各密閉室は、有機質汚泥のストックヤードへの搬入日量の少なくとも2倍以上の容積であり、破砕混合、一次貯留を含む4日以内の前処理と、2週間の密閉室発酵と、を複数の密閉室について順次、連続して行うことにより、搬入日量に対応する有機質汚泥を毎日処理するものである。前処理の4日は、破砕混合処理及び水分調整時間を確保するための前処理時間として適当な時間であるが、この日数よりも1,2日多い期間であってもよい。2週間程度の密閉室発酵は、2,3日のずれを生じても良い。なお、図1中、56は、密閉室内の温度センサであり、58は破砕混合工程、一次貯留工程等で出る汚泥中の水分を排水桝へ導く樋、60は排水桝である。 In this embodiment, this process is performed by eight sealed chamber devices, but each sealed chamber has a volume that is at least twice the daily amount of organic sludge carried into the stockyard, and is crushed and mixed. In order to process the organic sludge corresponding to the amount of carry-in every day, the pretreatment within 4 days including the primary storage and the fermentation for 2 weeks in the closed room are performed sequentially for a plurality of closed rooms. is there. 4 days pretreatment is the appropriate time as a pretreatment time for securing the crushing mixing process and moisture adjustment time may be one, two days more periods than the number of days. A closed room fermentation of about two weeks may cause a shift of a few days. In FIG. 1, 56 is a temperature sensor in the sealed chamber, 58 is a soot that guides the moisture in the sludge produced in the crushing and mixing step, the primary storage step, etc., and 60 is a drainage soot.

次に、図4をも参照し、本実施形態の有機質汚泥の処理システムの作用について、同有機質汚泥の処理方法とともに説明する。有機質下水汚泥RM1、牛糞RM2、有機質食品工業汚泥RM3、食品残渣RM4がそれぞれ図1の処理施設20のストックヤード24に搬入される(S1)。日々搬入される有機質汚泥の種類は、不定であり、日々ストックヤードへ搬入される汚泥の種類の配合構成も特定は困難である。例えば上記の汚泥中の1種類のみもあるし、4種類すべてが混入する場合もある。また、2種類のみ、あるいは3種類のみの場合もある。これらは、たとえば有機質下水汚泥RM1が80%程度、牛糞RM2が55%程度、有機質食品工業汚泥RM3が83%程度、食品残渣RM4が24%程度の含水率であり、一般に搬入後の有機質汚泥は含水率80〜90%である。それぞれの汚泥は、金属、プラスチック片その他の非有機質物質は予めフィルタ処理等により除去されて例えば30トンの有機質系物質のみがストックヤードに搬入される。   Next, the operation of the organic sludge treatment system according to the present embodiment will be described together with the organic sludge treatment method with reference to FIG. The organic sewage sludge RM1, the cow dung RM2, the organic food industrial sludge RM3, and the food residue RM4 are carried into the stock yard 24 of the treatment facility 20 in FIG. 1 (S1). The type of organic sludge that is brought in every day is indefinite, and it is difficult to specify the composition of the type of sludge that is brought into the stockyard every day. For example, there is only one type in the above sludge, and all four types may be mixed. There may be only two types or only three types. For example, the organic sewage sludge RM1 has a water content of about 80%, the cow dung RM2 is about 55%, the organic food industrial sludge RM3 is about 83%, and the food residue RM4 is about 24%. The water content is 80 to 90%. In each sludge, metals, plastic pieces and other non-organic substances are removed in advance by filtering or the like, and only 30 tons of organic substances are carried into the stockyard.

ストックヤードに搬入された処理対象の有機質汚泥は、例えばタイヤショベルにより隣の破砕混合部12に搬送され、そこに設置されている混合破砕機に微生物パウダとともに投入されて混合、攪拌される(S2)。この際、例えば、微生物パウダを例えば汚泥10に対して重量比1:10程度の割合で投入させ、混合攪拌させる。   The organic sludge to be treated carried into the stockyard is transported to the adjacent crushing and mixing unit 12 by, for example, a tire excavator, and is introduced into the mixing and crushing machine installed there together with the microbial powder and mixed and stirred (S2). ). At this time, for example, microbial powder is added to the sludge 10 at a weight ratio of about 1:10 and mixed and stirred.

混合、攪拌後に例えば粒径5mm程度の粒子状の汚泥が形成され、これを更にタイヤショベル等の搬送手段により、搬送レーン22を挟んだ対向位置の一次貯留部14に移送される。一次貯留部では、例えば1時間に数回程度の割合で切り返し装置が一次貯留部の槽体内を往復作動し(S3)、そこに投入した有機質汚泥への酸素供給による腐敗を防止するとともに、発酵しやすい条件を整えるための養生を行う。これで前処理工程が行われる。この破砕混合及び一次貯留工程を含む前処理工程は、例えば4日間で行われる。   After mixing and stirring, for example, particulate sludge having a particle diameter of about 5 mm is formed, and this is further transferred to the primary storage unit 14 at the opposite position across the transfer lane 22 by a transfer means such as a tire shovel. In the primary storage unit, for example, the reversing device reciprocates within the tank of the primary storage unit at a rate of about several times per hour (S3), preventing corruption due to oxygen supply to the organic sludge charged therein and fermentation. We perform curing to prepare easy-to-use conditions. Thus, the pretreatment process is performed. The pretreatment process including the crushing and mixing and the primary storage process is performed, for example, for 4 days.

次に、一次貯留部14に約80トンの汚泥が蓄積され、5日目に発酵処理部16の例えば85トンの容量の密閉室に80トンの汚泥を一度に投入する。そして、この処理を各密閉室181〜188について、順次行う。各密閉室への汚泥の投入時に同時に、加温空気注入駆動装置49を駆動させて25℃〜35℃程度の加温空気を処理対象汚泥中に注入する。注入後、約7日後程度の時期に一次発酵(S4)により有機質汚泥は好気性発酵し、汚泥中温度は約65℃程度に上昇する。さらに、その後7日目程度で二次発酵(S5)を生じ、汚泥中温度は、約80〜85℃に達する。この間、加温空気注入管32からは上記の常温程度の温風が吹出され、さらに、吸引排出部34及び脱臭部36を介して密閉室内の残余空気部42から発酵による蒸気を含む空気が吸引排出される一方、吸引空気を脱臭して外部等へ排気される。吸引排出部34の吸引ファン52はセンサ56による残余空気部42の検出温度に連動して作動するように制御装置を介して制御されており、常に最適の設定発酵条件を保持するようになっている。   Next, about 80 tons of sludge is accumulated in the primary storage unit 14, and on the fifth day, 80 tons of sludge is put into a sealed chamber of the fermentation processing unit 16 having a capacity of, for example, 85 tons at a time. And this process is sequentially performed about each sealed chamber 181-188. Simultaneously with the introduction of the sludge into each sealed chamber, the heated air injection driving device 49 is driven to inject the heated air of about 25 ° C. to 35 ° C. into the treatment target sludge. After the injection, the organic sludge undergoes aerobic fermentation by primary fermentation (S4) about 7 days later, and the sludge temperature rises to about 65 ° C. Furthermore, secondary fermentation (S5) is produced in about the seventh day thereafter, and the temperature in the sludge reaches about 80 to 85 ° C. During this time, warm air of about the above-mentioned normal temperature is blown out from the heated air inlet tube 32, and further, air containing steam from fermentation is sucked from the remaining air portion 42 in the sealed chamber through the suction discharge portion 34 and the deodorizing portion 36. On the other hand, the suction air is deodorized and exhausted to the outside. The suction fan 52 of the suction / discharge section 34 is controlled via a control device so as to operate in conjunction with the temperature detected by the sensor 56 in the residual air section 42, and always maintains the optimum set fermentation conditions. Yes.

そして、各密閉室は、有機質汚泥の搬入日量の少なくとも2倍以上の容積であり、破砕混合、一次貯留を含む4日以内の前処理と、2週間程度の密閉室発酵と、を複数の密閉室について順次、連続して行うことにより、搬入日量に対応する有機質汚泥を毎日処理することができる。また、有機質汚泥中への加温空気の注入を開始し、これをすべての密閉室について順次、連続して行うことにより、24時間以内で処理投入量と少なくとも同量相当の肥料原料を製造する(S6)ことができる。汚泥の発酵完了時には、堆肥化汚泥の体積は約3分の1の20t程度に減容する。そして、第1の密閉室181からすべての完成後の堆肥化汚泥を排出し、袋詰め処理部26の作業スペースに搬送されて袋詰めされ(S7)、製品出荷可能状態とされる(S8)。このとき、例えば含水率が20%〜30%程度に調整されている。 Each sealed chamber has a volume that is at least twice as large as the amount of organic sludge carried in, and includes a pretreatment within 4 days including crushing mixing and primary storage, and a closed chamber fermentation for about 2 weeks. By performing sequentially and continuously on the sealed chamber, the organic sludge corresponding to the daily carry-in amount can be treated every day. In addition, by starting the injection of warm air into the organic sludge and performing this sequentially and continuously for all sealed chambers, a fertilizer raw material equivalent to at least the same amount as the treatment input is produced within 24 hours. (S6). When the sludge fermentation is completed, the volume of composted sludge is reduced to about 1/3 of 20t. Then, all the composted sludge after completion is discharged from the first sealed chamber 181, transported to the working space of the bagging processing section 26 and packed in a bag (S 7), and a product can be shipped (S 8). . At this time, for example, the moisture content is adjusted to about 20% to 30%.

図5は、これらの処理工程表であり、第1室から第8室についてそれぞれ4日の前処理と、14日の発酵処理を行って計80トンの汚泥が処理される。図において、4日間の前処理後、80トンの汚泥を密閉室181〜188に充填し、同時に加温空気32注入駆動を開始させた後、約2週間で発酵完了し、コンポストを得る。第1室は5日から18日が発酵使用され、第2室は、9日から22日、第3室は、13日から26日、以下同様に4日の前処理と14日の発酵処理のローテーションが繰り返されて、8室すべてが使用され、その間、日々20トンの汚泥が処理される。さらに、作業スペースで、3日程度の間隔で袋詰め製品化された10トンの堆肥化製品が完成していく。 FIG. 5 is a table of these process steps, and the first to eighth chambers are each subjected to 4 days of pretreatment and 14 days of fermentation treatment to process a total of 80 tons of sludge. In the figure, after pretreatment for 4 days, 80 tons of sludge is filled in the sealed chambers 181 to 188, and simultaneously, the heating air 32 injection driving is started, and then the fermentation is completed in about 2 weeks to obtain compost. The first room is fermented from the 5th to the 18th, the second room is the 9th to the 22nd, the third room is the 13th to the 26th, and so on. Rotation is repeated and all 8 rooms are used, while 20 tons of sludge is processed daily. In addition, 10 tons of composted products made into bag products at intervals of about 3 days will be completed in the work space.

以下、順次、これを繰り返すことにより、敷地内に隣接した密閉スペースを作るだけの極めて簡単な設備により汚泥の大量処理が可能である。すなわち、20tの汚泥を毎日投入し、毎日、発酵処理後の減容後20t程度の汚泥堆肥化物を処理製造する。つまり、順次作業により、24時間以内で処理投入量と少なくとも同量相当の有機質汚泥発酵処理を行うものである。処理後の堆肥化汚泥は有価物として取引の対象となり、利益をもたらす。上記した実施形態では密閉室及びこれを含む密閉室装置は8個設けているが、それ以上の個数を設置させてもよい。また、密閉室の4個づつの対向配置に限らず、単に直列状に配置させた構成としても良い。 Hereinafter, by repeating this step by step, it is possible to process a large amount of sludge with a very simple facility that simply creates a sealed space adjacent to the site. That is, 20t of sludge is introduced every day, and about 20t of sludge compost is processed and produced every day after volume reduction after fermentation treatment. That is, the organic sludge fermentation process corresponding to at least the same amount as the process input amount is performed within 24 hours by sequential work. The composted sludge after treatment becomes a target for trading as a valuable resource and brings profits. In the above-described embodiment, eight sealed chambers and eight sealed chamber devices including the sealed chamber are provided, but a larger number may be installed. Moreover, it is good also as a structure which is not only limited to four opposing arrangements of sealed chambers but simply arranged in series.

は、上記の処理システム並びに方法により、製造したコンポストの分析結果の一例を示している。 FIG. 6 shows an example of an analysis result of compost produced by the above processing system and method.

本実施形態の有機質汚泥の処理方法は、有機質汚泥を破砕しつつ微生物を着床させた粉体を混合させる工程と、混合後の有機質汚泥を貯留して切り返し操作で空気を供給する工程と、空気を供給された有機質汚泥を密閉室内に投入静置し加温空気を室内の底部から連続して吹出して有機質汚泥中に注入する工程と、密閉室内の有機質汚泥が微生物発酵し発熱により室内空気部に蒸散させる工程と、室空気部への蒸散とともに密閉室内の気体を吸引して換気させる工程と、吸引された気体を脱臭させる工程と、を含み、該密閉室を複数併設して、順次作業により、24時間以内で処理投入量と少なくとも同量相当の有機質汚泥発酵処理を行うものである。 The organic sludge treatment method of the present embodiment includes a step of mixing the powder on which microorganisms are implanted while crushing the organic sludge, a step of storing the organic sludge after mixing and supplying air by a reversing operation, The process of injecting organic sludge supplied with air into the sealed room and allowing it to stand still and blowing heated air continuously from the bottom of the room and injecting it into the organic sludge; Including a step of transpiration to a part, a step of sucking and ventilating a gas in a sealed chamber together with transpiration to a room air portion, and a step of deodorizing the sucked gas. Depending on the work, an organic sludge fermentation treatment equivalent to at least the same amount as the input amount of treatment is performed within 24 hours.

このとき、密閉室内の有機質汚泥中への加温空気温度が25度〜35度であり、微生物発酵は、有機質汚泥内部温度が60℃程度に上昇する一次発酵工程と、その後さらに発酵を促進して85℃程度となる二次発酵工程と、を含むようにすることもできる。  At this time, the temperature of the heated air into the organic sludge in the sealed room is 25 to 35 degrees, and the microbial fermentation promotes the fermentation after the primary fermentation step in which the internal temperature of the organic sludge rises to about 60 ° C. And a secondary fermentation step of about 85 ° C.

以上説明した本発明の有機質汚泥の処理施設は、上記した実施形態のみに限定されるものではなく、特許請求の範囲に記載した本発明の本質を逸脱しない範囲において、任意の改変を行ってもよい。 The organic sludge treatment facility of the present invention described above is not limited to the above-described embodiment, and any modification may be made without departing from the essence of the present invention described in the claims. Good.

本発明の有機質汚泥の処理施設は、下水道汚泥、生活生ごみ、家畜糞尿、食品残渣物、食品生産工場、一般事業所等から排出される有機質廃棄物、その他の有機廃棄物を簡単な設備で有効に大量処理できる。 The treatment facility for organic sludge according to the present invention is a simple facility that treats organic waste discharged from sewage sludge, domestic waste, livestock manure, food residues, food production factories, general offices, and other organic waste. It can handle large volumes effectively.

本発明の実施形態に係る有機質汚泥の処理施設の全体構成平面説明図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory plan view of the entire configuration of an organic sludge treatment facility according to an embodiment of the present invention. 図1の処理施設における密閉室の一部省略拡大平面説明図である。FIG. 2 is a partially omitted enlarged plan explanatory view of a sealed chamber in the processing facility of FIG. 1. 図1の有機質汚泥の処理施設の処理施設の拡大縦断面説明図である。It is an expansion longitudinal cross-section explanatory drawing of the processing facility of the processing facility of the organic sludge of FIG. 図1の処理施設による処理方法を示すフローチャート図である。It is a flowchart figure which shows the processing method by the processing facility of FIG. 図1の処理施設による処理工程の表を示す図である。It is a figure which shows the table | surface of the processing process by the processing facility of FIG. 図1の処理施設により製造したコンポストの成分表の図である。It is a figure of the component table | surface of the compost manufactured by the processing facility of FIG.

12 破砕混合部
14 一次貯留部
16 発酵処理部
18 密閉室装置
32 加温空気注入管
34 吸引排出部
36 脱臭部
Cm1 第1密閉室群、Cm2 第2密閉室群
181〜190 密閉室
12 Crushing and mixing unit 14 Primary storage unit
DESCRIPTION OF SYMBOLS 16 Fermentation process part 18 Sealed chamber apparatus 32 Heated air injection pipe 34 Suction discharge part 36 Deodorizing part Cm1 1st sealed room group, Cm2 2nd sealed room group 181-190 Sealed room

Claims (2)

搬入される有機質汚泥に対して所定割合で微生物を着床させた粉体を混合させて所要粒径に破砕する破砕混合部と、
破砕混合後の有機質汚泥を切り返し処理を行ないつつ貯留して養生する一次貯留部と、
一次貯留部での処理後の有機質汚泥を収容し空気を供給しつつ有機質汚泥を発酵処理する発酵処理部と、を有し、
発酵処理部は、併設された複数の密閉室装置を含み、
該密閉室装置は、有機質汚泥が投入静置される密閉室と、
密閉室内に投入された有機質汚泥中に加温空気を注入する加温空気注入管と、
有機質汚泥が微生物発酵して発生する蒸気を含む空気を吸引排出する吸引排出部と、
吸引された気体を脱臭させる脱臭部と、を有し、
1つの敷地内に破砕混合部と一次貯留部とが前処理部として中央搬送空間を中間に配した対向位置に配置されるとともに、発酵処理部の複数の密閉処理室が破砕混合部と一次貯留部にそれぞれ隣接並置され、かつ、中央搬送空間を中間に配した対向位置に配置され、
密閉室は、それぞれ有機質汚泥の搬入日量の少なくとも2倍以上の容積で8個以上が配置されていることを特徴とする有機質汚泥の処理施設
A crushing and mixing unit that mixes a powder in which microorganisms have been implanted at a predetermined ratio with respect to the organic sludge to be carried, and crushes to a required particle size ;
A primary storage unit that stores and cures the sludge after the crushing and mixing process ,
A fermentation treatment unit for fermenting organic sludge while containing organic sludge after treatment in the primary storage unit and supplying air;
The fermentation processing unit includes a plurality of sealed chamber devices attached thereto,
The sealed chamber apparatus includes a sealed chamber into which organic sludge is charged and left stationary;
A heated air injection pipe for injecting heated air into the organic sludge thrown into the sealed chamber;
A suction discharge unit for sucking and discharging air containing steam generated by microbial fermentation of organic sludge;
A deodorizing part for deodorizing the sucked gas,
In one site, the crushing and mixing unit and the primary storage unit are arranged at opposite positions with the central conveyance space in the middle as a pretreatment unit, and a plurality of sealed processing chambers of the fermentation processing unit and the crushing and mixing unit and primary storage Arranged adjacent to each other, and arranged at the opposite position with the central conveyance space in the middle,
An organic sludge treatment facility characterized in that eight or more sealed chambers are arranged with a volume at least twice the daily amount of organic sludge carried in.
密閉室内に投入された有機質汚泥中への加温空気温度は、25度〜35度であることを特徴とする請求項1記載の有機質汚泥の処理施設The treatment facility for organic sludge according to claim 1, wherein the temperature of the heated air into the organic sludge charged into the sealed chamber is 25 to 35 degrees.
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