JP2006116428A - Method and apparatus for treatment of hydrated organic waste - Google Patents

Method and apparatus for treatment of hydrated organic waste Download PDF

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JP2006116428A
JP2006116428A JP2004306990A JP2004306990A JP2006116428A JP 2006116428 A JP2006116428 A JP 2006116428A JP 2004306990 A JP2004306990 A JP 2004306990A JP 2004306990 A JP2004306990 A JP 2004306990A JP 2006116428 A JP2006116428 A JP 2006116428A
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oil
organic waste
solid
separated
waste
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Susumu Shimura
進 志村
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Daido Steel Co Ltd
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Daido Steel 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
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

<P>PROBLEM TO BE SOLVED: To treat large amounts of waste rapidly in a compact space in order to produce large amounts of useful recycle products having wide application. <P>SOLUTION: The apparatus for treatment of hydrated organic waste has a solid-liquid separating unit 1 separating hydrated organic waste into the solid and the liquid portion, a dehydration/drying unit 2 dehydrating and drying the separated solid portion, a carbonizing oven 3 carbonizing the dried solid portion to yield a carbonized product, an oil-separating unit 4 separating oil from the separated liquid portion and a biological membrane filtering unit 5 filtering the oil-free liquid portion to produce reclaimed water. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、生ごみ等の食品廃棄物を含む含水性有機廃棄物を、有用品としてリサイクル可能とする含水性有機廃棄物の処理方法および処理装置に関する。   TECHNICAL FIELD The present invention relates to a method and apparatus for treating hydrous organic waste that makes it possible to recycle hydrous organic waste containing food waste such as garbage into useful products.

食品リサイクル法（食品循環資源の再生利用等の促進に関する法律）が平成１３年に施行されて、平成１８年までに食品廃棄物の２０％をリサイクルすることが義務付けられた。従来、この種の食品廃棄物は、コンポスト化したり、バクテリア式の生ごみ分解装置によって処理していた。なお、特許文献１には、生ごみを破砕冷凍してぺースト状にし、これに食物繊維粉末を混合して脱水乾燥することによってリサイクル可能な有用品とする生ごみ処理方法が開示されている。
特開２００１−１４５８６９ The Food Recycling Law (Act on Promotion of Recycling of Food Recycling Resources) came into force in 2001, and it was obliged to recycle 20% of food waste by 2006. Conventionally, this type of food waste has been composted or treated with a bacteria-type garbage decomposition device. Patent Document 1 discloses a method for treating garbage which is a useful product that can be recycled by crushing and freezing the garbage to form a paste, mixing it with dietary fiber powder, and dehydrating and drying it. .
JP 2001-145869 A

しかし、コンポスト化は処理に数日から数週間という比較的長時間を要するとともに季節によって処理能力が変動し易く、また広い処理スペースを必要とする上に、コンポストの需要が時期的に限定される等の問題がある。生ごみ分解装置も、大規模処理が困難であり、処理品の用途が限られてリサイクル価値が低い等の問題がある。   However, composting takes a relatively long period of time from several days to several weeks, the processing capacity tends to fluctuate depending on the season, and a large processing space is required, and the demand for composting is limited in time. There are problems such as. The garbage decomposing apparatus also has problems such as difficulty in large-scale processing, limited use of processed products, and low recycling value.

そこで、本発明はこのような課題を解決するもので、コンパクトなスペースで、大量の廃棄物を迅速に処理して、広い用途を有する有用なリサイクル製品を生成することができる含水性有機廃棄物の処理方法および処理装置を提供することを目的とする。   Accordingly, the present invention solves such a problem, and a hydrous organic waste that can rapidly process a large amount of waste in a compact space to produce a useful recycled product having a wide range of uses. An object of the present invention is to provide a processing method and a processing apparatus.

上記目的を達成するために、本第１発明の含水性有機廃棄物の処理方法は、含水性有機廃棄物を固体分と液体分に分離し、分離された固体分は脱水乾燥した後、炭化して炭化物とするとともに、分離された液体分は油分を除去した後、生物膜ろ過して再生水とする。   In order to achieve the above object, the method for treating hydrous organic waste according to the first aspect of the present invention separates the hydrous organic waste into a solid component and a liquid component, and the separated solid component is dehydrated and dried, and then carbonized. Thus, the separated liquid is oil-removed and then biofilm filtered to obtain reclaimed water.

本第２発明の含水性有機廃棄物の処理装置は、含水性有機廃棄物を固体分と液体分に分離する固液分離装置（１）と、分離された固体分を脱水乾燥する脱水乾燥装置（２）と、乾燥した固体分を炭化する炭化炉（３）と、分離された上記液体分から油分を除去する油分分離装置（４）と、油分が除去された上記液体分をろ過する生物膜ろ過装置（５）とを具備している。   The treatment apparatus for hydrous organic waste according to the second aspect of the invention comprises a solid-liquid separation device (1) for separating hydrous organic waste into a solid content and a liquid content, and a dehydration drying device for dehydrating and drying the separated solid content. (2), a carbonization furnace (3) for carbonizing the dried solid content, an oil content separation device (4) for removing the oil content from the separated liquid content, and a biofilm for filtering the liquid content from which the oil content has been removed And a filtration device (5).

本第１発明および本第２発明においては、コンパクトなスペースで、大量の廃棄物を迅速に処理することが可能であり、炭化物と再生水という、広い用途を有する有用なリサイクル製品を生成することができる。   In the first invention and the second invention, it is possible to quickly process a large amount of waste in a compact space, and it is possible to produce useful recycled products having a wide range of uses such as carbide and recycled water. it can.

本第３発明の含水性有機廃棄物の処理装置では、脱水乾燥装置（２）から排出された廃水分を油分分離装置（４）に供給する供給路（２１）と、油分分離装置（４）から排出された油分を炭化炉（３）へ供給する供給路（４１）とをさらに設ける。本第３発明においては、脱水乾燥装置や油分分離装置から排出される廃水分や油分を、処理装置外へ排出することなく当該装置内で全て処理することができる。   In the water-containing organic waste processing apparatus of the third invention, a supply path (21) for supplying waste water discharged from the dehydration drying apparatus (2) to the oil separator (4), and an oil separator (4) And a supply passage (41) for supplying the oil discharged from the fuel to the carbonization furnace (3). In the third aspect of the invention, waste water and oil discharged from the dehydration drying device and oil separation device can be all processed in the device without being discharged out of the processing device.

なお、上記カッコ内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

以上のように、本発明の含水性有機廃棄物の処理方法および処理装置によれば、コンパクトなスペースで、大量の廃棄物を迅速に処理して、広い用途を有する有用なリサイクル製品を生成することができる。   As described above, according to the method and apparatus for treating hydrous organic waste according to the present invention, a large amount of waste can be quickly treated in a compact space to produce a useful recycled product having a wide range of uses. be able to.

図１には含水性有機廃棄物として食品廃棄物たる厨芥類を処理する場合の処理手順と装置構成の一例を示す。図１において、厨芥類は、スクリーンや遠心脱水機を備える固液分離装置１に投入されて厨芥固形物と厨芥廃水に分離される。厨芥固形物は遠心脱水および熱風乾燥等による脱水・乾燥装置２に搬入されて乾燥厨芥とされる。なお、脱水・乾燥装置２で生じる廃水分は供給路２１によって上記厨芥廃水に合流させられる。乾燥厨芥には供給路４１を経て、後述する油分分離装置４からの油分が加えられ、これらは、例えば内熱式ないし外熱式のロータリキルン等で構成される炭化炉３へ投入されて、炭化物とされる。この炭化物は土壌改良材、融雪材、脱臭材あるいはバイオマス燃料等として広い用途があり、高いリサイクル価値がある。この場合、例えば水分８０％で１Ｋｇの厨芥類を最終的に６０ｇ程度の炭化物にできるから、減量減容によって搬送負担等が軽減される。   FIG. 1 shows an example of a processing procedure and an apparatus configuration when processing food waste, which is a food waste, as a hydrous organic waste. In FIG. 1, moss is put into a solid-liquid separator 1 equipped with a screen and a centrifugal dehydrator and separated into cocoon solids and cocoon waste water. The solid matter is brought into a dehydration / drying device 2 by centrifugal dehydration, hot air drying, or the like to be dried. The waste water generated in the dehydration / drying apparatus 2 is joined to the dredged waste water through the supply path 21. Oil from the oil separator 4 to be described later is added to the drying trough through the supply path 41, and these are put into the carbonization furnace 3 constituted by, for example, an internal heat type or an external heat type rotary kiln, Carbide. This carbide has a wide range of uses as a soil improving material, snow melting material, deodorizing material or biomass fuel, and has high recycling value. In this case, for example, 1 kg of moss with 80% moisture can be finally converted to about 60 g of carbide, so that the burden of transportation and the like is reduced by reducing the volume.

固液分離装置１で厨芥固形物から分離された厨芥廃水およびこれに合流した脱水・乾燥装置２からの廃水分は、例えば活性酵素を用いたグリストラップ型の油分分離装置４に流入させられて、ここで油分が分離除去される。分離された油分は上述のように乾燥厨芥に加えられる。油分が除去された厨芥廃水は、例えば移動床式や固定床式の生物膜ろ過装置５へ流入させられて、ここでＳＳ、ＢＯＤ、ＣＯＤ等が除去低減され、再利用可能な再生水（中水）として排出される。   The waste water separated from the solid matter in the solid-liquid separation device 1 and the waste water from the dehydration / drying device 2 merged therewith are introduced into a grease trap type oil separation device 4 using an active enzyme, for example. Here, the oil is separated and removed. The separated oil is added to the dry cake as described above. The dredged waste water from which the oil has been removed is allowed to flow into, for example, a moving bed type or fixed bed type biofilm filtration device 5 where SS, BOD, COD, etc. are removed and reduced, and reusable recycled water (medium water) ).

このような処理により、運転や生成物の性状が安定した状態で、季節変動を受けることなく、省スペースで、厨芥類を総合的に高付加価値製品にリサイクルすることができる。なお、本発明は上記実施形態で説明した厨芥類等の食品廃棄物のみならず、広く含水性有機廃棄物の処理に適用できるものである。   By such treatment, it is possible to comprehensively recycle moss into high value-added products in a space-saving manner without being subject to seasonal fluctuations in a state where operation and product properties are stable. Note that the present invention can be widely applied to the treatment of not only food waste such as moss described in the above embodiment but also water-containing organic waste.

本発明の一実施形態における、厨芥類を処理する場合の処理手順と装置構成の一例を示す系統図である。It is a systematic diagram which shows an example of the process sequence in the case of processing moss, and an apparatus structure in one Embodiment of this invention.

符号の説明Explanation of symbols

１…固液分離装置、２…脱水乾燥装置、３…炭化炉、４…油分分離装置、５…生物膜ろ過装置。 DESCRIPTION OF SYMBOLS 1 ... Solid-liquid separation apparatus, 2 ... Dehydration drying apparatus, 3 ... Carbonization furnace, 4 ... Oil content separation apparatus, 5 ... Biofilm filtration apparatus.

Claims (3)

含水性有機廃棄物を固体分と液体分に分離し、分離された固体分は脱水乾燥した後、炭化して炭化物とするとともに、分離された液体分は油分を除去した後、生物膜ろ過して再生水とすることを特徴とする含水性有機廃棄物の処理方法。 The hydrous organic waste is separated into a solid component and a liquid component, and the separated solid component is dehydrated and dried, then carbonized to form a carbide, and the separated liquid component is filtered through a biofilm after removing the oil component. A method for treating hydrous organic waste, characterized by using recycled water. 含水性有機廃棄物を固体分と液体分に分離する固液分離装置と、分離された固体分を脱水乾燥する脱水乾燥装置と、乾燥した固体分を炭化する炭化炉と、分離された液体分から油分を除去する油分分離装置と、油分が除去された液体分をろ過する生物膜ろ過装置とを具備する含水性有機廃棄物の処理装置。 A solid-liquid separation device that separates hydrous organic waste into a solid component and a liquid component, a dehydration drying device that dehydrates and drys the separated solid component, a carbonization furnace that carbonizes the dried solid component, and a separated liquid component. An apparatus for treating hydrous organic waste comprising an oil separation device for removing oil and a biofilm filtration device for filtering a liquid from which oil has been removed. 脱水乾燥装置から排出された廃水分を油分分離装置に供給する供給路と、油分分離装置から排出された油分を炭化炉へ供給する供給路とをさらに設けた請求項２に記載の含水性有機廃棄物の処理装置。 The hydrous organic material according to claim 2, further comprising: a supply path for supplying waste water discharged from the dehydration drying apparatus to the oil separation apparatus; and a supply path for supplying oil discharged from the oil separation apparatus to the carbonization furnace. Waste treatment equipment.
JP2004306990A 2004-10-21 2004-10-21 Method and apparatus for treatment of hydrated organic waste Pending JP2006116428A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105107829A (en) * 2015-09-22 2015-12-02 哈尔滨工业大学 Automatic degradable garbage treatment system and method for space station
CN111112284A (en) * 2019-12-16 2020-05-08 杭州临江环境能源有限公司 Device and method capable of comprehensively treating perishable garbage
CN112620317A (en) * 2021-01-05 2021-04-09 深圳茂元环保科技有限公司 Kitchen waste treatment and fermentation process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105107829A (en) * 2015-09-22 2015-12-02 哈尔滨工业大学 Automatic degradable garbage treatment system and method for space station
CN111112284A (en) * 2019-12-16 2020-05-08 杭州临江环境能源有限公司 Device and method capable of comprehensively treating perishable garbage
CN111112284B (en) * 2019-12-16 2021-12-14 杭州临江环境能源有限公司 Device and method capable of comprehensively treating perishable garbage
CN112620317A (en) * 2021-01-05 2021-04-09 深圳茂元环保科技有限公司 Kitchen waste treatment and fermentation process

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