JP2007238740A - Treating system of organic material - Google Patents

Treating system of organic material Download PDF

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JP2007238740A
JP2007238740A JP2006062348A JP2006062348A JP2007238740A JP 2007238740 A JP2007238740 A JP 2007238740A JP 2006062348 A JP2006062348 A JP 2006062348A JP 2006062348 A JP2006062348 A JP 2006062348A JP 2007238740 A JP2007238740 A JP 2007238740A
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anaerobic gas
concentrator
combustion
gas
organic substance
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Taiji Ishihara
大治 石原
Akira Akiyoshi
亮 秋吉
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Ishikawajima Inspection and Instrumentation Co Ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To treat a large amount of organic materials without increasing the apparatus cost. <P>SOLUTION: A treating system 10 of organic materials comprises a storage part 11 in which an organic material T and an anaerobic gas G generated from the organic material T and a combustion deodorization apparatus 12 for deodorize the anaerobic gas G from the storage part 11 by combustion thereof, wherein there is provided a concentration machine 14 in which, before the anaerobic gas G is introduced into the combustion deodorization apparatus 12, the anaerobic gas G is preliminarily concentrated to be a concentrated anaerobic gas G1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、有機性物質の嫌気ガス、例えば蓄糞を発酵させたときに発生する発酵ガスや、揮発性有機化合物の揮発ガス等が貯蔵される貯蔵部と、この貯蔵部からの嫌気ガスを燃焼して脱臭する燃焼脱臭装置とを備える有機性物質の処理システムに関するものである。   The present invention relates to an anaerobic gas of an organic substance, for example, a fermentation gas generated when fermented feces, a volatile gas of a volatile organic compound or the like is stored, and an anaerobic gas from the storage unit. The present invention relates to an organic substance processing system including a combustion deodorization apparatus that deodorizes by combustion.

この種の有機性物質の処理システムとしては、例えば下記特許文献１に示されるような、堆肥化装置から発生する発酵ガスをディーゼルエンジン等の内燃機関に導入して燃料とともに燃焼させることにより、発酵ガスが含有する臭気成分を高温で熱分解し、同時に、その内燃機関を駆動源として発電を行うようにされた構成が知られている。
特開２００３−１４８１８６号公報 As a processing system for this type of organic substance, for example, as shown in Patent Document 1 below, fermentation gas generated from a composting apparatus is introduced into an internal combustion engine such as a diesel engine and burned together with fuel, thereby allowing fermentation. There is known a configuration in which an odor component contained in gas is thermally decomposed at a high temperature, and at the same time, power generation is performed using the internal combustion engine as a drive source.
JP 2003-148186 A

しかしながら、従来の有機性物質の処理システムでは、堆肥化処理する有機性物質の量が多く大量の発酵ガスが発生する場合には、この大量の発酵ガスを燃焼できる容量を確保するために、多くの内燃機関若しくは大型の内燃機関を設けて燃焼脱臭装置の処理容量を増大させる必要がある。このため、大量の有機性物質を処理できるシステムでは装置コストが上昇するという問題がある。   However, in the conventional organic substance processing system, when the amount of the organic substance to be composted is large and a large amount of fermentation gas is generated, a large amount is required to ensure the capacity to burn this large amount of fermentation gas. Therefore, it is necessary to increase the processing capacity of the combustion deodorizing apparatus by providing an internal combustion engine or a large-sized internal combustion engine. For this reason, there is a problem that the cost of the apparatus increases in a system capable of processing a large amount of organic substances.

この発明は、このような事情を考慮してなされたもので、装置コストを増大させることなく大量の有機性物質を処理することができる有機性物質の処理システムを提供することを目的とする。   The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide an organic material processing system capable of processing a large amount of organic material without increasing the apparatus cost.

上記課題を解決して、このような目的を達成するために、本発明の有機性物質の処理システムは、有機性物質およびこの有機性物質から発生する嫌気ガスが貯蔵される貯蔵部と、この貯蔵部からの嫌気ガスを燃焼して脱臭する燃焼脱臭装置とを備える有機性物質の処理システムであって、前記嫌気ガスを前記燃焼脱臭装置に導入する前に、予めこの嫌気ガスを濃縮して濃縮嫌気ガスにする濃縮機が設けられていることを特徴とする。   In order to solve the above problems and achieve such an object, the organic material processing system of the present invention includes an organic material and a storage unit in which an anaerobic gas generated from the organic material is stored, An organic substance processing system comprising a combustion deodorization device that burns and deodorizes anaerobic gas from a storage unit, wherein the anaerobic gas is concentrated in advance before introducing the anaerobic gas into the combustion deodorization device. It is characterized in that a concentrator for making concentrated anaerobic gas is provided.

この発明では、濃縮機を備えているので、燃焼脱臭装置に嫌気ガスを導入する前に、予めこの嫌気ガスを濃縮してその体積を小さく、かつ濃度を高めておくことが可能になる。したがって、処理する嫌気ガスの量が多くても燃焼脱臭装置の処理容量を増大させることなく、しかも処理効率を低減させないで脱臭処理することができる。   In this invention, since the concentrator is provided, before introducing the anaerobic gas to the combustion deodorizing apparatus, it is possible to concentrate the anaerobic gas in advance to reduce its volume and increase the concentration. Therefore, even if the amount of the anaerobic gas to be processed is large, the deodorizing process can be performed without increasing the processing capacity of the combustion deodorizing apparatus and without reducing the processing efficiency.

ここで、前記貯蔵部は前記有機性物質を発酵させて堆肥化処理するコンポストを備え、このコンポストで発生した前記嫌気ガスを前記燃焼脱臭装置に導入する前に、予めこの嫌気ガスから水分を分離する脱水処理部が設けられてもよい。   Here, the storage unit is provided with compost for fermenting the organic substance and composting, and before introducing the anaerobic gas generated in the compost into the combustion deodorizer, moisture is separated from the anaerobic gas in advance. A dehydration processing unit may be provided.

この場合、燃焼脱臭装置に嫌気ガスを導入する前に、予め脱水処理部でこの嫌気ガスの水分を分離しておくことが可能になるので、嫌気ガスに大量の水分が含まれていた場合においても、この水分に起因して燃焼脱臭装置において不完全燃焼を生じさせたり、この燃焼脱臭装置の寿命を低下させるのを抑制することができる。   In this case, before introducing the anaerobic gas into the combustion deodorization apparatus, it becomes possible to separate the moisture of the anaerobic gas in advance in the dehydration processing unit, so when the anaerobic gas contains a large amount of moisture However, it is possible to suppress the occurrence of incomplete combustion in the combustion deodorization apparatus due to the moisture and the reduction in the life of the combustion deodorization apparatus.

また、前記濃縮機から前記燃焼脱臭装置に前記濃縮嫌気ガスを導入した後、この濃縮機に次の嫌気ガスを導入する前に、予め前記濃縮機に冷却エアを導入するエア導入装置が設けられるとともに、このエア導入装置から前記濃縮機を通過した冷却エアを再度この濃縮機に導入する戻入部が設けられてもよい。   In addition, after introducing the concentrated anaerobic gas from the concentrator to the combustion deodorizer, an air introduction device for introducing cooling air into the concentrator in advance before introducing the next anaerobic gas into the concentrator is provided. In addition, there may be provided a return portion for introducing the cooling air that has passed through the concentrator from the air introduction device into the concentrator again.

この場合、濃縮機から濃縮嫌気ガスを燃焼脱臭装置に導入した後、次の嫌気ガスを濃縮機に導入する前に、予めこの濃縮機を冷却しておくことが可能になり、濃縮機に過度の熱負荷を与えるのが防止され、この濃縮機の寿命低下を防ぐことができる。しかも、この冷却に際してエア導入装置から濃縮機を通過した冷却エアを外部に排出することなく、戻入部を介して再度濃縮機に導入するので、臭気が外部に漏れる等して周囲環境が悪化するのを防ぐことができる。   In this case, after introducing the concentrated anaerobic gas from the concentrator into the combustion deodorizer, it is possible to cool the concentrator in advance before introducing the next anaerobic gas into the concentrator. Thus, it is possible to prevent a decrease in the service life of the concentrator. In addition, the cooling air that has passed through the concentrator from the air introduction device is introduced to the concentrator again through the return section during this cooling, so that the ambient environment deteriorates due to odor leaking to the outside. Can be prevented.

この発明によれば、装置コストを増大させることなく大量の有機性物質を処理することができる。   According to this invention, a large amount of organic substance can be processed without increasing the apparatus cost.

以下、本発明に係る有機性物質の処理システムの第１実施形態を、図１を参照しながら説明する。
有機性物質の処理システム１０は、有機性物質としての蓄糞Ｔおよびこの蓄糞Ｔから発生する嫌気ガスＧが貯蔵される貯蔵部１１と、この貯蔵部１１からの嫌気ガスＧを燃焼して脱臭する燃焼脱臭装置１２とを備えている。 Hereinafter, a first embodiment of an organic substance processing system according to the present invention will be described with reference to FIG.
The organic substance processing system 10 burns the storage part 11 in which the feces T as an organic substance and the anaerobic gas G generated from the feces T are stored, and the anaerobic gas G from the storage part 11. And a combustion deodorizing device 12 for deodorizing.

貯蔵部１１は、蓄糞Ｔが貯蔵される貯糞タンク１１ａと、貯糞タンク１１ａから蓄糞Ｔが導入されるとともに、第１送風ブロワ１１ｄから空気Ａ１が導入され、蓄糞Ｔを発酵させて堆肥化処理する複数のコンポスト１１ｂと、これらのコンポスト１１ｂから発酵ガスとしての嫌気ガスＧが導入されてこの嫌気ガスＧを均質化させるアキュムレータ１１ｃとを備えている。   The storage unit 11 fertilizes the fecal storage T by storing the fecal storage tank 11a in which the fecal storage T is stored, and the fecal storage T introduced from the fecal storage tank 11a and the air A1 from the first blower blower 11d. A plurality of composts 11b to be composted, and an accumulator 11c that introduces anaerobic gas G as a fermentation gas from these composts 11b and homogenizes the anaerobic gas G.

燃焼脱臭装置１２は、後述する濃縮機１４からの濃縮嫌気ガスＧ１を冷却する冷却塔１２ａと、導入された空気Ａ２および冷却後の濃縮嫌気ガスＧ１を燃料とともにディーゼルエンジン等の内燃機関により燃焼させて、濃縮嫌気ガスＧ１の臭気成分を高温で熱分解し、同時に発電を行う燃焼脱臭発電システム１２ｂと、空気Ａ２および冷却後の濃縮嫌気ガスＧ１を燃焼脱臭発電システム１２ｂに導入する分配器１２ｃとを備えている。   The combustion deodorization device 12 burns the cooling tower 12a for cooling the concentrated anaerobic gas G1 from the concentrator 14, which will be described later, and the introduced air A2 and the cooled concentrated anaerobic gas G1 together with fuel by an internal combustion engine such as a diesel engine. A combustion deodorization power generation system 12b that thermally decomposes the odor components of the concentrated anaerobic gas G1 at a high temperature and simultaneously generates power, and a distributor 12c that introduces the air A2 and the cooled concentrated anaerobic gas G1 into the combustion deodorization power generation system 12b. It has.

そして、本実施形態の有機性物質の処理システム１０では、貯蔵部１１と燃焼脱臭装置１２との間に、コンポスト１１ｂで発生した嫌気ガスＧを燃焼脱臭装置１２に導入する前に、予めこの嫌気ガスＧから水分Ｍを分離する脱水処理部としての凝縮器１３と、空気Ａ３および脱水処理後の嫌気ガスＧ等を濃縮機１４に導入する排風ブロワ１５と、空気Ａ３および脱水処理後の嫌気ガスＧ等を濃縮する濃縮機１４とを備えている。   And in the processing system 10 of the organic substance of this embodiment, before introducing the anaerobic gas G which generate | occur | produced in the compost 11b between the storage part 11 and the combustion deodorizing apparatus 12 into the combustion deodorizing apparatus 12, this anaerobic is carried out beforehand. Condenser 13 as a dehydration processing unit that separates moisture M from gas G, exhaust air blower 15 that introduces air A3 and anaerobic gas G after dehydration into the concentrator 14, air A3 and anaerobic after dehydration And a concentrator 14 for concentrating the gas G and the like.

このうち濃縮機１４は円板状とされ、その内部空間全体の体積の１０％がゼオライトハニカムにより形成されたハニカム構造とされ、濃縮機１４の内部に導入された嫌気ガスＧおよび空気Ａ３等はこのハニカム構造部分に案内されて濃縮されるようになっている。   Of these, the concentrator 14 has a disk shape, and has a honeycomb structure in which 10% of the volume of the entire internal space is formed by a zeolite honeycomb. The anaerobic gas G and air A3 introduced into the concentrator 14 are The honeycomb structure is guided and concentrated.

また、濃縮機１４から燃焼脱臭装置１２に濃縮嫌気ガスＧ１を導入した後、この濃縮機１４に次の嫌気ガスＧおよび空気Ａ３を導入する前に予め、濃縮機１４に冷却エアＡ４を導入するエア導入装置１６が設けられている。さらに、このエア導入装置１６から濃縮機１４を通過した冷却エアＡ４を再度この濃縮機１４に導入するための第１戻入部１７が設けられている。
すなわち、前述した排風ブロワ１５は、前記通過した冷却エアＡ４、空気Ａ３および脱水処理後の嫌気ガスＧを濃縮機１４に導入し、濃縮機１４は、前記通過した冷却エアＡ４、空気Ａ３および脱水処理後の嫌気ガスＧを濃縮するようになっている。 Further, after introducing the concentrated anaerobic gas G1 from the concentrator 14 to the combustion deodorizer 12, before introducing the next anaerobic gas G and air A3 into the concentrator 14, the cooling air A4 is introduced into the concentrator 14 in advance. An air introduction device 16 is provided. Further, a first return portion 17 for introducing the cooling air A4 that has passed through the concentrator 14 from the air introduction device 16 into the concentrator 14 is provided.
That is, the above-described exhaust blower 15 introduces the passed cooling air A4, air A3, and the anaerobic gas G after the dehydration process into the concentrator 14, and the concentrator 14 passes the passed cooling air A4, air A3, and The anaerobic gas G after the dehydration process is concentrated.

以上の有機性物質の処理システム１０により嫌気ガスＧを脱臭処理する方法について説明する。
まず、貯糞タンク１１ａに貯蔵された蓄糞Ｔをベルトコンベアで３つのコンポスト１１ｂのそれぞれに導入する。この際、１つのコンポスト１１ｂについて２４時間を１周期として蓄糞Ｔの導入量を経時変化させつつ継続的に導入し、他の２つのコンポスト１１ｂについては導入するタイミングをそれぞれ約８時間ずつずらして、前記１つのコンポスト１１ｂと同様の周期および導入量で蓄糞Ｔを導入する。このようにして各コンポスト１１ｂに蓄糞Ｔを導入する際、同時に、第１送風ブロワ１１ｄにより空気Ａ１を各コンポスト１１ｂに９ｍ３／ｍｉｎの流量で導入する。なお、本実施形態では、各コンポスト１１ｂの内部体積は３６ｍ３とされている。 A method of deodorizing the anaerobic gas G by the organic substance processing system 10 will be described.
First, the feces storage T stored in the feces storage tank 11a is introduced into each of the three composts 11b by a belt conveyor. At this time, 24 hours is set as one cycle for one compost 11b, and the introduction amount of the accumulated feces T is continuously introduced while being changed with time, and the introduction timing is shifted by about 8 hours for each of the other two composts 11b. The accumulated feces T are introduced with the same period and introduction amount as the one compost 11b. In this way, when introducing feces T into each compost 11b, air A1 is simultaneously introduced into each compost 11b at a flow rate of 9 m 3 / min by the first blower blower 11d. In the present embodiment, the internal volume of each compost 11b is 36 m 3 .

そして、各コンポスト１１ｂで蓄糞Ｔを発酵させて堆肥化処理して、この際発生した嫌気ガスＧをアキュムレータ１１ｃに導入して、この嫌気ガスＧを均質化させる。この均質化された嫌気ガスＧが含有する臭気成分としてのＮＨ３の濃度は３０００ｐｐｍとなる。なお、本実施形態のアキュムレータ１１ｃは、その内径が約４ｍ、高さが約５ｍとされている。 Then, the feces T are fermented and composted in each compost 11b, the anaerobic gas G generated at this time is introduced into the accumulator 11c, and the anaerobic gas G is homogenized. The concentration of NH 3 as an odor component contained in the homogenized anaerobic gas G is 3000 ppm. Note that the accumulator 11c of the present embodiment has an inner diameter of about 4 m and a height of about 5 m.

次に、アキュムレータ１１ｃから嫌気ガスＧを凝縮器１３に導入し、この嫌気ガスＧが含有する水分Ｍを２．５ｍ３／ｍｉｎ蒸発させ、ＮＨ３の濃度を１０００ｐｐｍにする。そして、この嫌気ガスＧに空気Ａ３を５．５ｍ３／ｍｉｎ導入して、ＮＨ３の濃度を２００ｐｐｍに希釈する。次に、この希釈化された嫌気ガスＧを排風ブロワ１５により３０ｍ３／ｍｉｎで濃縮機１４に導入し、嫌気ガスＧの体積を１０分の１の３ｍ３／ｍｉｎに圧縮し、かつＮＨ３の濃度を１０倍の２０００ｐｐｍに濃縮して濃縮嫌気ガスＧ１にする。
なお、濃縮嫌気ガスＧ１の酸素の含有率は約１０ｖｏｌ％となる。また、嫌気ガスＧを濃縮機１４に直接導入しないで、空気Ａ３と混ぜ合わせて希釈化した混合ガスを導入することによって、濃縮機１４が腐食するのを抑制している。 Next, the anaerobic gas G is introduced into the condenser 13 from the accumulator 11c, and the water M contained in the anaerobic gas G is evaporated at 2.5 m 3 / min to make the concentration of NH 3 1000 ppm. Then, air A3 is introduced to the anaerobic gas G at 5.5 m 3 / min to dilute the concentration of NH 3 to 200 ppm. Next, the diluted anaerobic gas G is introduced into the concentrator 14 by the exhaust blower 15 at 30 m 3 / min, the volume of the anaerobic gas G is compressed to 3 m 3 / min of 1/10, and NH The concentration of 3 is concentrated 10 times to 2000 ppm to make concentrated anaerobic gas G1.
Note that the oxygen content of the concentrated anaerobic gas G1 is about 10 vol%. In addition, the corroding of the concentrator 14 is suppressed by introducing the mixed gas diluted by mixing with the air A3 without directly introducing the anaerobic gas G into the concentrator 14.

そして、この濃縮嫌気ガスＧ１（３ｍ３／ｍｉｎ）を燃焼脱臭装置１２の冷却塔１２ａに導入して約３０℃に冷却した後に、このガスＧ１を分配器１２ｃを介して１ｍ３／ｍｉｎの空気Ａ２とともに２台の燃焼脱臭発電システム１２ｂそれぞれに２ｍ３／ｍｉｎずつ導入し、各システム１２ｂにおいて、空気Ａ２および濃縮嫌気ガスＧ１を燃料とともにディーゼルエンジン等の内燃機関で燃焼させて、濃縮嫌気ガスＧ１の臭気成分を高温で熱分解し、同時に発電を行う。 Then, after this concentrated anaerobic gas G1 (3 m 3 / min) is introduced into the cooling tower 12a of the combustion deodorizer 12 and cooled to about 30 ° C., this gas G1 is air 1 m 3 / min through the distributor 12c. 2 m 3 / min are introduced into each of the two combustion deodorizing power generation systems 12b together with A2, and in each system 12b, the air A2 and the concentrated anaerobic gas G1 are burned together with fuel in an internal combustion engine such as a diesel engine, and the concentrated anaerobic gas G1 Pyrolysis of odor components at high temperature and power generation at the same time.

なお、分配器１２ｃから燃焼脱臭発電システム１２ｂに導入される濃縮嫌気ガスＧ１および空気Ａ２の混合ガスの酸素の含有率は約１７ｖｏｌ％となり、大気中の空気に含まれる酸素の含有率と同等になる。また、燃焼脱臭発電システム１２ｂの処理容量は本実施形態では約２ｍ３／ｍｉｎとされている。 The oxygen content of the mixed gas of the concentrated anaerobic gas G1 and air A2 introduced from the distributor 12c to the combustion deodorizing power generation system 12b is about 17 vol%, which is equivalent to the oxygen content contained in the air in the atmosphere. Become. In addition, the processing capacity of the combustion deodorizing power generation system 12b is about 2 m 3 / min in this embodiment.

ここで、濃縮機１４から濃縮嫌気ガスＧ１が燃焼脱臭装置１２に導入されると、この濃縮機１４では残存した臭気成分がこの濃縮機１４の脱着ポートに向けて流動する。その際、燃焼脱臭発電システム１２ｂにおける前記燃焼時の排気ガスＧ２（２００℃以上）が濃縮機１４に導入され、この排気ガスＧ２の熱により前記脱着ポートに位置する前記残存した臭気成分が脱着されて取り除かれる。   Here, when the concentrated anaerobic gas G <b> 1 is introduced from the concentrator 14 into the combustion deodorizer 12, the remaining odor components flow toward the desorption port of the concentrator 14. At that time, the exhaust gas G2 (200 ° C. or more) at the time of combustion in the combustion deodorization power generation system 12b is introduced into the concentrator 14, and the residual odor component located at the desorption port is desorbed by the heat of the exhaust gas G2. To be removed.

そして、次の嫌気ガスＧや空気Ａ３が濃縮機１４に導入される前に、予めエア導入装置１６から濃縮機１４に冷却エアＡ４を導入してこの濃縮機１４を冷却させておく。この冷却エアＡ４の導入量は、濃縮機１４から燃焼脱臭装置１２に導入される濃縮嫌気ガスＧ１と同量（４ｍ３／ｍｉｎ）とする。この冷却時に濃縮機１４を通過した冷却エアＡ４は、排風ブロワ１５と凝縮器１３との間に第１戻入部１７を介して戻され、再度、排風ブロワ１５により濃縮機１４に導入され、前記と同様に濃縮された後に燃焼される。これにより、濃縮機１４を通過したことによって臭気成分を含有することになった冷却エアＡ４が外部に流出するのを防ぐことができる。 Then, before the next anaerobic gas G or air A3 is introduced into the concentrator 14, cooling air A4 is introduced into the concentrator 14 from the air introduction device 16 in advance to cool the concentrator 14. The amount of cooling air A4 introduced is the same amount (4 m 3 / min) as the concentrated anaerobic gas G1 introduced from the concentrator 14 to the combustion deodorizer 12. The cooling air A4 that has passed through the concentrator 14 during this cooling is returned between the exhaust air blower 15 and the condenser 13 via the first return section 17, and is again introduced into the concentrator 14 by the exhaust air blower 15. In the same manner as described above, it is burned after being concentrated. Thereby, it is possible to prevent the cooling air A4 that has contained the odor component by passing through the concentrator 14 from flowing out.

以上説明したように、本実施形態による有機性物質の処理システム１０によれば、濃縮機１４を備えているので、燃焼脱臭装置１２に嫌気ガスＧを導入する前に、予めこの嫌気ガスＧを濃縮してその体積を小さくして濃度を高めておくことが可能になる。したがって、処理する蓄糞Ｔや嫌気ガスＧの量が多くても燃焼脱臭装置１２の処理容量を増大させることなく、しかも処理効率を低減させないで脱臭処理することができる。   As described above, according to the organic substance processing system 10 according to the present embodiment, the concentrator 14 is provided. Therefore, before introducing the anaerobic gas G to the combustion deodorizing apparatus 12, the anaerobic gas G is preliminarily introduced. It is possible to concentrate and reduce the volume to increase the concentration. Therefore, even if the amount of stored feces T or anaerobic gas G to be processed is large, the deodorizing process can be performed without increasing the processing capacity of the combustion deodorizing apparatus 12 and without reducing the processing efficiency.

すなわち、排風ブロワ１５から３０ｍ３／ｍｉｎの嫌気ガスＧを濃縮機１４を介さず直接、燃焼脱臭発電システム１２ｂに導入する場合には、本実施形態のように燃焼脱臭発電システム１２ｂの処理容量が２ｍ３／ｍｉｎのとき、このシステム１２ｂを１５台設ける必要があるのに対し、本実施形態では２台設ければ足りることになる。 That is, when the anaerobic gas G of 30 m 3 / min from the exhaust blower 15 is directly introduced into the combustion deodorization power generation system 12b without going through the concentrator 14, the processing capacity of the combustion deodorization power generation system 12b as in this embodiment. Is 2 m 3 / min, it is necessary to provide 15 systems 12b, whereas in the present embodiment, it is sufficient to provide 2 systems 12b.

ここで、嫌気ガスＧの体積を小さくした濃縮嫌気ガスＧ１では酸素の含有率が約１０ｖｏｌ％と少なくなりすぎ、そのまま燃焼脱臭発電システム１２ｂに導入すると不完全燃焼が生ずることになるが、本実施形態では、このシステム１２ｂに導入する前に空気Ａ２を１ｍ３／ｍｉｎ導入して、大気中の空気に含まれる酸素の含有率と同等にしているので、不完全燃焼が発生するのを防ぐことができる。 Here, in the concentrated anaerobic gas G1 in which the volume of the anaerobic gas G is reduced, the oxygen content is too low, about 10 vol%, and incomplete combustion occurs when it is introduced as it is into the combustion deodorizing power generation system 12b. In the embodiment, air A2 is introduced at 1 m 3 / min before being introduced into the system 12b so as to equalize the oxygen content contained in the air in the atmosphere, thereby preventing incomplete combustion from occurring. Can do.

また、本実施形態では、脱水処理部としての凝縮器１３を備えているので、嫌気ガスＧに比較的大量の水分が含有されていた場合においても、燃焼脱臭装置１２にこの嫌気ガスＧを導入する前に、予めこの水分を分離しておくことが可能になり、この水分に起因して燃焼脱臭装置１２において不完全燃焼を生じさせたり、この燃焼脱臭装置１２の寿命を低下させるのを抑制することができる。   Further, in the present embodiment, since the condenser 13 is provided as a dehydration processing unit, even when a relatively large amount of water is contained in the anaerobic gas G, the anaerobic gas G is introduced into the combustion deodorizer 12. This makes it possible to separate the moisture in advance, and to suppress incomplete combustion in the combustion deodorizing device 12 due to the moisture or reducing the life of the combustion deodorizing device 12. can do.

特に本実施形態では、凝縮器１３により嫌気ガスＧから水分を分離した後に、この嫌気ガスＧを濃縮機１４に導入して濃縮するようにしているので、嫌気ガスＧの濃縮効率の向上を図ることが可能になり、この処理システム１０全体での有機性物質の処理効率を向上させることができる。さらに、濃縮機１４が、嫌気ガスＧの含有する水分に起因して破損し易くなり寿命が低下するのを防ぐことができる。   In particular, in the present embodiment, after the moisture is separated from the anaerobic gas G by the condenser 13, the anaerobic gas G is introduced into the concentrator 14 and concentrated, so that the concentration efficiency of the anaerobic gas G is improved. Therefore, the processing efficiency of the organic substance in the entire processing system 10 can be improved. Furthermore, it is possible to prevent the concentrator 14 from being easily damaged due to the moisture contained in the anaerobic gas G and reducing its life.

さらに、エア導入装置１６が設けられているので、濃縮機１４から濃縮嫌気ガスＧ１を燃焼脱臭装置１２に導入した後、次の嫌気ガスＧを貯蔵部１１から濃縮機１４に導入する前に、予めこの濃縮機１４を冷却しておくことが可能になり、濃縮機１４に過度の熱負荷を与えるのが防止され、この濃縮機１４の寿命低下を防ぐことができる。
また、エア導入装置１６から濃縮機１４を通過した冷却エアＡ４を再度この濃縮機１４に導入するための第１戻入部１７が設けられ、前記通過した冷却エアＡ４を外部に排出させないので、臭気が外部に漏れる等して周囲環境が悪化するのを防ぐことができる。 Furthermore, since the air introduction device 16 is provided, after introducing the concentrated anaerobic gas G1 from the concentrator 14 to the combustion deodorizer 12, before introducing the next anaerobic gas G from the storage unit 11 to the concentrator 14, This concentrator 14 can be cooled in advance, and an excessive heat load is prevented from being applied to the concentrator 14, thereby preventing a decrease in the life of the concentrator 14.
In addition, a first reversing portion 17 is provided for reintroducing the cooling air A4 that has passed through the concentrator 14 from the air introduction device 16 into the concentrator 14, and the passing cooling air A4 is not discharged to the outside. Can prevent the surrounding environment from deteriorating due to leakage to the outside.

次に、本発明に係る有機性物質の処理システムの第２実施形態を、図２を参照しながら説明するが、前記第１実施形態と同様の部位には同一符号を付してその説明は省略し、異なる点についてのみ説明する。   Next, a second embodiment of the organic substance processing system according to the present invention will be described with reference to FIG. 2. The same reference numerals are given to the same parts as those in the first embodiment, and the description thereof will be omitted. Omitted and only the differences will be described.

本実施形態に係る有機性物質の処理システム２０における排風ブロワ１５は、アキュムレータ１１ｃにより均質化された嫌気ガスＧと、エア導入装置１６から濃縮機１４を通過した冷却エアＡ４とを脱水処理部としての除湿機２１に導入するように設けられている。そして、除湿機２１には、除湿機２１に空気Ａ５を導入する第２送風ブロワ２３と、この空気Ａ５を加熱するヒータ２４とが設けられており、除湿機２１に付着した臭気成分を脱着させて取り除けるようになっている。また、除湿機２１において嫌気ガスＧおよび冷却エアＡ４の混合ガスから分離した水分Ｍをアキュムレータ１１ｃと排風ブロワ１５との間に導入して、前記混合ガスの熱により蒸発させるようにした第２戻入部２２が設けられている。   The exhaust blower 15 in the organic substance processing system 20 according to the present embodiment is configured to dehydrate the anaerobic gas G homogenized by the accumulator 11c and the cooling air A4 that has passed through the concentrator 14 from the air introduction device 16. It is provided so as to be introduced into the dehumidifier 21. The dehumidifier 21 is provided with a second blower blower 23 that introduces air A5 into the dehumidifier 21 and a heater 24 that heats the air A5, and desorbs odor components adhering to the dehumidifier 21. Can be removed. In addition, the moisture M separated from the mixed gas of the anaerobic gas G and the cooling air A4 in the dehumidifier 21 is introduced between the accumulator 11c and the exhaust air blower 15, and is evaporated by the heat of the mixed gas. A retraction part 22 is provided.

以上の有機性物質の処理システム２０により嫌気ガスＧを脱臭処理する方法について説明する。
前記均質化された嫌気ガスＧおよび濃縮機１４を通過した冷却エアＡ４からなる混合ガスを排風ブロワ１５により４０ｍ３／ｍｉｎで除湿機２１に導入する。この混合ガスでは、ＮＨ３の濃度が３０００ｐｐｍとされるとともに、含水率が８５％とされる。また、除湿機２１には第２送風ブロワ２３から９ｍ３／ｍｉｎの空気Ａ５が導入される。 A method for deodorizing the anaerobic gas G by the organic substance processing system 20 will be described.
A mixed gas composed of the homogenized anaerobic gas G and the cooling air A4 that has passed through the concentrator 14 is introduced into the dehumidifier 21 by the exhaust blower 15 at 40 m 3 / min. In this mixed gas, the concentration of NH 3 is 3000 ppm and the water content is 85%. In addition, 9 m 3 / min of air A5 is introduced into the dehumidifier 21 from the second blower blower 23.

そして、除湿機２１を通過した前記混合ガスは、ＮＨ３の濃度が２００ｐｐｍとされるとともに含水率が４０％とされ、さらに濃縮機１４に導入されて、体積が１０分の１の４ｍ３／ｍｉｎに圧縮されるとともにＮＨ３の濃度が１０倍の２０００ｐｐｍに濃縮される。次に、この濃縮嫌気ガスＧ１を分配器１２ｃを介して２ｍ３／ｍｉｎの空気Ａ２とともに３台の燃焼臭気脱臭システム１２ｂそれぞれに２ｍ３／ｍｉｎずつ導入し、各システム１２ｂにおいて、前記実施形態と同様に脱臭処理する。 The mixed gas that has passed through the dehumidifier 21 has an NH 3 concentration of 200 ppm and a moisture content of 40%, and is further introduced into the concentrator 14 to have a volume of 1/10 4 m 3 / While being compressed to min, the concentration of NH 3 is concentrated 10 times to 2000 ppm. Next, this concentrated anaerobic gas G1 is introduced into each of the three combustion odor deodorizing systems 12b together with the air A2 of 2 m 3 / min via the distributor 12c, and 2 m 3 / min is introduced into each system 12b. Similarly, deodorization treatment is performed.

以上説明したように本実施形態による有機性物質の処理システム２０によれば、前記第１実施形態で奏効される作用効果に加え、除湿機２１で前記混合ガスから分離された水分Ｍを、第２戻入部２２を介してアキュムレータ１１ｃと排風ブロワ１５との間に導入して蒸発させることが可能になるので、臭気が外部に漏れる等して周囲環境が悪化するのを確実に防ぐことができる。   As described above, according to the organic substance processing system 20 according to the present embodiment, in addition to the effects obtained in the first embodiment, the moisture M separated from the mixed gas by the dehumidifier 21 2 Since it can be introduced between the accumulator 11c and the exhaust air blower 15 via the reversing part 22 and evaporated, it is possible to reliably prevent the surrounding environment from deteriorating due to leakage of odor to the outside. it can.

次に、本発明に係る有機性物質の処理システムの第３実施形態を、図３を参照しながら説明するが、前記第１実施形態と同様の部位には同一符号を付してその説明は省略し、異なる点についてのみ説明する。   Next, a third embodiment of the organic substance processing system according to the present invention will be described with reference to FIG. 3. The same reference numerals are given to the same parts as those in the first embodiment, and the description thereof will be omitted. Omitted and only the differences will be described.

本実施形態に係る有機性物質の処理システム３０は、ＶＯＣ含有の環境芳香族やケトン系等の揮発性有機化合物から発生する揮発ガスを脱臭処理するものである。具体的には、貯蔵部１１は、揮発性有機化合物および揮発ガスを貯蔵し、この貯蔵部１１からの揮発ガス（濃度２０〜３０ｐｐｍ）Ｇを排風ブロワ１５により３０ｍ３／ｍｉｎで濃縮機１４に導入する。そして、揮発ガスＧの体積を１０分の１の３ｍ３／ｍｉｎまで圧縮するとともに濃度を１０倍の２００〜３００ｐｐｍまで濃縮する。 The organic substance processing system 30 according to the present embodiment performs a deodorizing process on volatile gases generated from VOC-containing volatile organic compounds such as environmental aromatics and ketones. Specifically, the storage unit 11 stores a volatile organic compound and a volatile gas, and concentrates the volatile gas (concentration 20 to 30 ppm) G from the storage unit 11 at 30 m 3 / min by the exhaust blower 15. To introduce. Then, the volume of the volatile gas G is compressed to 1/10 of 3 m 3 / min and the concentration is concentrated 10 times to 200 to 300 ppm.

次に、この濃縮嫌気ガスＧ１を冷却塔１２ａに導入して約３０℃まで冷却した後に、流量１ｍ３／ｍｉｎの空気Ａ２とともに分配器１２ｃに導入し、その後、２台の燃焼脱臭システム１２ｂそれぞれに２ｍ３／ｍｉｎずつ濃縮嫌気ガスＧ１と空気Ａ２との混合ガスを導入して脱臭処理する。そして、排気ガスＧ２の一部は、前記各実施形態と同様に、濃縮機１４に導入してその内部に付着した臭気成分を脱着させて取り除き、残りは外部に排出する。
このような構成においても、装置コストを増大させることなく大量の有機性物質を処理することができる。なお、本実施形態では、嫌気ガスＧに水分は殆ど含有されていないので、前記第１、第２実施形態のように脱水処理部は設けられていない。 Next, the concentrated anaerobic gas G1 is introduced into the cooling tower 12a, cooled to about 30 ° C., and then introduced into the distributor 12c together with the air A2 having a flow rate of 1 m 3 / min, and then each of the two combustion deodorizing systems 12b. The mixed gas of the concentrated anaerobic gas G1 and air A2 is introduced at a rate of 2 m 3 / min, and deodorized. A part of the exhaust gas G2 is introduced into the concentrator 14 and deodorized and removed from the interior of the concentrator 14, and the rest is discharged to the outside, as in the above embodiments.
Even in such a configuration, a large amount of an organic substance can be processed without increasing the apparatus cost. In this embodiment, since the anaerobic gas G contains almost no moisture, the dehydration processing unit is not provided as in the first and second embodiments.

なお、本発明の技術的範囲は前記実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。
例えば、前記各実施形態では、濃縮機１４に残存した臭気成分を脱着するのに、燃焼脱臭発電システム１２ｂからの排気ガスＧ２を濃縮機１４に導入したが、これに代えて、加熱した空気を導入するようにしてもよい。 The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in each of the above-described embodiments, the exhaust gas G2 from the combustion deodorizing power generation system 12b is introduced into the concentrator 14 in order to desorb the odor components remaining in the concentrator 14, but instead of this, heated air is used. You may make it introduce.

また、前記第１、第２実施形態では、脱水処理部（凝縮器１３、除湿機２１）により嫌気ガスＧから水分Ｍを分離した後に、このガスＧを濃縮機１４に導入したが、これに代えて、嫌気ガスＧから水分Ｍを分離する前に濃縮機１４により濃縮嫌気ガスＧ１とし、その後、この濃縮嫌気ガスＧ１から水分Ｍを分離した後に、このガスＧ１を燃焼脱臭装置１２に導入するようにしてもよい。
さらに、前記実施形態では、燃焼脱臭装置１２が燃焼脱臭発電システム１２ｂを有する構成を示したが、これに代えて、例えば蓄熱槽等の自己発電しない燃焼脱臭装置を採用してもよい。 In the first and second embodiments, after the moisture M is separated from the anaerobic gas G by the dehydration processing unit (the condenser 13 and the dehumidifier 21), the gas G is introduced into the concentrator 14. Instead, before the moisture M is separated from the anaerobic gas G, the concentrated anaerobic gas G1 is obtained by the concentrator 14, and after the moisture M is separated from the concentrated anaerobic gas G1, the gas G1 is introduced into the combustion deodorizer 12. You may do it.
Furthermore, in the said embodiment, although the combustion deodorizing apparatus 12 showed the structure which has the combustion deodorizing electric power generation system 12b, it may replace with this and may employ | adopt the combustion deodorizing apparatus which does not generate electric power, such as a heat storage tank, for example.

装置コストを増大させることなく大量の有機性物質を処理することができる有機性物質の処理システムを提供する。   An organic material processing system capable of processing a large amount of an organic material without increasing an apparatus cost is provided.

本発明に係る第１実施形態において、有機性物質の処理システムを示すブロック図である。1 is a block diagram showing an organic substance processing system in a first embodiment according to the present invention. FIG. 本発明に係る第２実施形態において、有機性物質の処理システムを示すブロック図である。In 2nd Embodiment which concerns on this invention, it is a block diagram which shows the processing system of an organic substance. 本発明に係る第３実施形態において、有機性物質の処理システムを示すブロック図である。In 3rd Embodiment which concerns on this invention, it is a block diagram which shows the processing system of an organic substance.

符号の説明Explanation of symbols

１０、２０、３０ 有機性物質の処理システム
１１ 貯蔵部
１１ｂ コンポスト
１２ 燃焼脱臭装置
１３ 凝縮器（脱水処理部）
１４ 濃縮機
１６ エア導入装置
１７ 第１戻入部（戻入部）
２１ 除湿機（脱水処理部）
Ａ４ 冷却エア
Ｇ 嫌気ガス
Ｇ１ 濃縮嫌気ガス
Ｔ 蓄糞（有機性物質）
10, 20, 30 Processing System for Organic Substances 11 Storage Unit 11b Compost 12 Combustion Deodorizer 13 Condenser (Dehydration Processing Unit)
14 Concentrator 16 Air introduction device 17 First return part (return part)
21 Dehumidifier (Dehydration Processing Department)
A4 Cooling air G Anaerobic gas G1 Concentrated anaerobic gas T Feces (organic substance)

Claims (3)

有機性物質およびこの有機性物質から発生する嫌気ガスが貯蔵される貯蔵部と、この貯蔵部からの嫌気ガスを燃焼して脱臭する燃焼脱臭装置とを備える有機性物質の処理システムであって、
前記嫌気ガスを前記燃焼脱臭装置に導入する前に、予めこの嫌気ガスを濃縮して濃縮嫌気ガスにする濃縮機が設けられていることを特徴とする有機性物質の処理システム。 An organic substance treatment system comprising: a storage part for storing an organic substance and anaerobic gas generated from the organic substance; and a combustion deodorization device for deodorizing by burning the anaerobic gas from the storage part,
Before introducing the anaerobic gas into the combustion deodorizing apparatus, a concentrator for concentrating the anaerobic gas to make the concentrated anaerobic gas is provided in advance. 請求項１記載の有機性物質の処理システムにおいて、
前記貯蔵部は前記有機性物質を発酵させて堆肥化処理するコンポストを備え、このコンポストで発生した前記嫌気ガスを前記燃焼脱臭装置に導入する前に、予めこの嫌気ガスから水分を分離する脱水処理部が設けられていることを特徴とする有機性物質の処理システム。 In the organic substance processing system according to claim 1,
The storage unit is provided with compost for fermenting the organic substance and composting, and before introducing the anaerobic gas generated in the compost into the combustion deodorization apparatus, dehydration processing for separating moisture from the anaerobic gas in advance. Organic substance processing system, characterized in that a part is provided. 請求項１または２に記載の有機性物質の処理システムにおいて、
前記濃縮機から前記燃焼脱臭装置に前記濃縮嫌気ガスを導入した後、この濃縮機に次の嫌気ガスを導入する前に、予め前記濃縮機に冷却エアを導入するエア導入装置が設けられるとともに、このエア導入装置から前記濃縮機を通過した冷却エアを再度この濃縮機に導入する戻入部が設けられていることを特徴とする有機性物質の処理システム。

The organic substance processing system according to claim 1 or 2,
After introducing the concentrated anaerobic gas from the concentrator to the combustion deodorizer and before introducing the next anaerobic gas to the concentrator, an air introducing device for introducing cooling air into the concentrator is provided in advance. An organic substance processing system comprising a return section for introducing cooling air that has passed through the concentrator from the air introduction device into the concentrator again.

JP2006062348A 2006-03-08 2006-03-08 Treating system of organic material Pending JP2007238740A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295872A (en) * 1976-02-06 1977-08-11 Yamatake Honeywell Co Ltd Apparatus for breeding cattles and treating excretions
JPS5647810B2 (en) * 1977-06-22 1981-11-12
JPH05309228A (en) * 1990-12-13 1993-11-22 Tokyo Metropolis Method for burning and deodorizing digestion gas and device therefor
JPH06102132B2 (en) * 1990-11-08 1994-12-14 株式会社神戸製鋼所 Solvent concentration recovery device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295872A (en) * 1976-02-06 1977-08-11 Yamatake Honeywell Co Ltd Apparatus for breeding cattles and treating excretions
JPS5647810B2 (en) * 1977-06-22 1981-11-12
JPH06102132B2 (en) * 1990-11-08 1994-12-14 株式会社神戸製鋼所 Solvent concentration recovery device
JPH05309228A (en) * 1990-12-13 1993-11-22 Tokyo Metropolis Method for burning and deodorizing digestion gas and device therefor

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