JPS6211914B2 - - Google Patents
Info
- Publication number
- JPS6211914B2 JPS6211914B2 JP8570976A JP8570976A JPS6211914B2 JP S6211914 B2 JPS6211914 B2 JP S6211914B2 JP 8570976 A JP8570976 A JP 8570976A JP 8570976 A JP8570976 A JP 8570976A JP S6211914 B2 JPS6211914 B2 JP S6211914B2
- Authority
- JP
- Japan
- Prior art keywords
- methane
- municipal waste
- gas
- pyrolysis
- anaerobic organisms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 74
- 238000000197 pyrolysis Methods 0.000 claims description 35
- 238000000855 fermentation Methods 0.000 claims description 29
- 230000004151 fermentation Effects 0.000 claims description 29
- 239000002699 waste material Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 9
- 238000002407 reforming Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 37
- 239000000047 product Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- 238000005979 thermal decomposition reaction Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000010801 sewage sludge Substances 0.000 description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010806 kitchen waste Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、都市ごみを処理して、利用可能な有
用な物質に改質してこれを回収する、都市ごみの
改質方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for reforming municipal waste, which processes municipal waste, reforming it into useful substances that can be used, and recovering the same. be.
都市ごみを有用な物質に改質するには、都市ご
みをメタン発酵槽に直接供給してメタン化する方
法、或いは都市ごみを熱分解し、得られた熱分解
生成物のガス、油、チヤーを燃料として利用する
方法などがある。
To reform municipal waste into useful substances, there are two methods: feeding municipal waste directly to a methane fermentation tank for methane conversion, or pyrolyzing municipal waste and converting the resulting pyrolysis products into gas, oil, and charcoal. There are ways to use it as fuel.
例えば、直接メタン化する方法では、一般には
先ず厨芥を主体とした物質群を分別して取り出し
これを下水スラツジと混合してPH調節後メタン発
酵槽に供給し、嫌気性生物の作用により発酵せし
めてメタンを生成するものであるが、発酵に当た
つては発酵槽内温度を適温（中温発酵の場合は約
35℃、高温発酵の場合は50〜55℃付近）に維持す
る必要があり、このために特別の加熱設備を必要
とし、またこの加熱設備も槽内に伝熱管を設けた
方式のものは汚れのために伝熱効果が悪い欠点が
あり、また発酵槽の内部においてはスカムの発生
を防ぐために撹拌することが必要であるが、メタ
ンガスを主体とする爆発性ガスを内臓する発酵槽
内に機械式撹拌気を設けることはガスシールの点
などに困難な問題点があり好ましくないものであ
つた。 For example, in the method of direct methane conversion, generally, a group of substances mainly consisting of kitchen waste is first separated and extracted, mixed with sewage sludge, and after adjusting the pH, supplied to a methane fermentation tank, where it is fermented by the action of anaerobic organisms. Methane is produced, but during fermentation, the temperature inside the fermenter must be kept at an appropriate temperature (in the case of medium-temperature fermentation, approx.
It is necessary to maintain the temperature at 35℃ (or around 50 to 55℃ for high-temperature fermentation), which requires special heating equipment, and if this heating equipment has a heat transfer tube inside the tank, it will be dirty. However, it is necessary to stir the inside of the fermenter to prevent scum from forming inside the fermenter. Providing a type agitation gas was not preferable because it had difficult problems such as gas sealing.
さらに、収集場所と発酵処理場所が離れている
場合には、都市ごみは固形であるため自動車輸送
或いはコンベヤ輸送などの方式を用いなければな
らず都市内交通問題、或いは機械設備の設備スペ
ース、設備費、保守費がかさむ、などの問題が多
い。 Furthermore, if the collection site and the fermentation processing site are far apart, municipal waste is solid and must be transported by car or conveyor, which may cause transportation problems within the city, or the space and equipment for mechanical equipment. There are many problems such as high costs and maintenance costs.
一方都市ごみの処理設備中にはガス、油、チヤ
ーとして回収利用するために熱分解装置が設けら
れている場合がある。このガス、油、チヤーなど
の熱分解生成物は更に精製して有用物質である燃
料として利用される。 On the other hand, some municipal waste processing facilities are equipped with a pyrolysis device for recovering and using the waste as gas, oil, or char. The thermal decomposition products such as gas, oil, and char are further refined and used as fuel, which is a useful substance.
しかし、従来では、熱分解生成物を燃料として
ではなく、これを原料として有用物質を製造する
改質プロセスは複雑であり、設備スペース、設備
費、保守費が大となり経済的に引き合うよう製造
することは困難であつた。例えば、他の種々な化
学物質の原料として有用なメタンを熱分解ガスか
ら製造しようとするときには、触媒を利用する高
温プロセスを用いる以外にはなく、設備は大型で
複雑なものを必要とする欠点があつた。
However, in the past, the reforming process of producing useful substances using pyrolysis products as raw materials instead of using them as fuel was complex, requiring large equipment space, equipment costs, and maintenance costs, making it difficult to manufacture economically. That was difficult. For example, when attempting to produce methane, which is useful as a raw material for various other chemical substances, from pyrolysis gas, the only option is to use a high-temperature process that uses a catalyst, which has the disadvantage of requiring large and complex equipment. It was hot.
発明者らは都市ごみの有用処理における上記の
種々の欠点を改良するために研究を重ね、熱分解
ガスに相当量含まれるH2とCO2ガス及び該生成ガ
スを凝縮して得られる液中の有機酸、アルデヒド
などの炭水化物が何れもメタン菌などの嫌気性生
物の作用によりメタン化することに着目し、都市
ごみを、先ず、扱い易いガス状であり、かつ燃料
精製など、他の改質も行うことができる熱分解ガ
スを含む熱分解生成物となし、これを、嫌気性生
物の作用により生物学的に処理してメタン化して
改質を行う、という技術的思想に想到し、本発明
がなされたのである。 The inventors have conducted extensive research to improve the various drawbacks mentioned above in the useful treatment of municipal waste, and have developed a solution to improve the H 2 and CO 2 gases contained in considerable amounts in pyrolysis gas and the liquid obtained by condensing the generated gas. Focusing on the fact that organic acids, aldehydes, and other carbohydrates are converted to methane by the action of anaerobic organisms such as methane bacteria, we first focused on converting municipal waste into an easily handled gaseous state and using it for other processes such as fuel refining. We came up with the technical idea of creating pyrolysis products containing pyrolysis gas that can also be used to improve the quality of pyrolysis gas, and then biologically processing this through the action of anaerobic organisms to convert it into methane and reform it. The present invention has been made.
本発明は、メタン発酵装置と、熱分解装置とが
併設されているような都市ごみの処理施設では特
に有効である。 The present invention is particularly effective in municipal waste processing facilities where a methane fermentation device and a pyrolysis device are installed together.
本発明は、従来の方法の前述の如き欠点を除
き、中間生成物が扱い易いガス状であり、かつ他
の改質も行える物質であり、特別な化学反応装置
を要さず、また、メタン発酵に対する適温保持の
ため特別に他にエネルギを必要とせず、加温は直
接接触により行つて伝熱効果が良好となり、効率
よく有用なメタンを回収することができ、都市ご
みを利用価値の高い物質に改質する改質方法を提
供することを目的とするものである。 The present invention eliminates the above-mentioned drawbacks of the conventional method; the intermediate product is a gaseous substance that is easy to handle; it is also a material that can be reformed in other ways; it does not require any special chemical reaction equipment; No special energy is required to maintain the appropriate temperature for fermentation, and heating is performed through direct contact, resulting in a good heat transfer effect, making it possible to efficiently recover useful methane, and converting municipal waste into a highly useful material. The purpose is to provide a method for modifying substances.
本発明は、都市ごみを熱分解処理し、得られた
熱分解生成物の少なくとも一部を、メタン発酵槽
内に供給し、嫌気性生物の作用によつてメタン化
することを特徴とする都市ごみの改質方法であ
る。
The present invention provides a method for treating urban waste by thermally decomposing municipal waste, supplying at least a part of the obtained thermal decomposition product into a methane fermentation tank, and converting it into methane by the action of anaerobic organisms. This is a method of reforming waste.
本発明の都市ごみを改質する実施例につき図面
を用いて説明する。
An embodiment of the present invention for reforming municipal waste will be described with reference to the drawings.
第１図において、都市ごみ供給路１４より分別
装置１に供給された都市ごみは先ず厨芥を主体と
する物質群とその他の物質群とに分別され
る。物質群は混合槽２において下水スラツジ供
給路１５より供給された下水スラツジと混合しPH
調整後、メタン発酵槽３に供給され、ここで発生
したメタンを主体とする生成ガスは管路１１を経
てガス貯槽に至る。又残渣は脱水装置４によつて
脱水し、種（嫌気性生物）を含んだ水は一部混合
槽２に環流し、残部は排水処理装置１６に送られ
ると共に固形物は熱分解装置５に供給される。 In FIG. 1, municipal waste supplied to the sorting device 1 from the municipal waste supply path 14 is first separated into a material group consisting mainly of kitchen waste and a material group of other materials. The substance group is mixed with the sewage sludge supplied from the sewage sludge supply path 15 in the mixing tank 2, and the PH
After adjustment, the produced gas, which is supplied to the methane fermentation tank 3 and mainly consists of methane, generated here reaches the gas storage tank via the pipe line 11. The residue is dehydrated by the dehydrator 4, part of the water containing seeds (anaerobic organisms) is returned to the mixing tank 2, the remainder is sent to the wastewater treatment equipment 16, and the solids are sent to the pyrolysis equipment 5. Supplied.
一方、紙、プラスチツク、金属などを主体とす
る物質群は磁選機１０によつて鉄分１７を除去
したる後熱分解装置５に供給される。熱分解によ
つて生成された熱分解ガスは管路１２を経てその
一部又は全部をスクラバー６に導き、シアン、フ
エノール、塩化水素、重金属などの如き嫌気性生
物の活動を妨害する有害物質を必要限界まで除去
し、ブロワ７により加圧後加熱装置８によつて加
熱して、メタン発酵槽３内に設けられたエジエク
タ９の高圧部に供給される。エジエクタ９は、生
成ガスの噴流によりメタン発酵槽３内の液に切線
方向の流れ２２を与えるよう配設されているの
で、メタン発酵槽３内の液は撹拌と共に旋回作用
を受け発酵残渣は中心底部に集積され、残渣の抜
出しが容易となる。スクラバー６において凝縮し
た液分は液処理装置１３によつて油分２０を分離
し、かつ嫌気性生物の滑動を妨害する有害物質２
１を除去したる後、残つた炭水化物を含む水分も
メタン発酵槽３内に供給され、発酵を行う。 On the other hand, a group of substances mainly consisting of paper, plastic, metal, etc. is fed to a pyrolysis device 5 after iron 17 is removed by a magnetic separator 10. A part or all of the pyrolysis gas generated by pyrolysis is guided through a pipe 12 to a scrubber 6 to remove harmful substances such as cyanide, phenol, hydrogen chloride, heavy metals, etc. that interfere with the activities of anaerobic organisms. It is removed to the required limit, pressurized by the blower 7, heated by the heating device 8, and supplied to the high pressure section of the ejector 9 provided in the methane fermentation tank 3. The ejector 9 is arranged to give a flow 22 in the tangential direction to the liquid in the methane fermentation tank 3 by a jet of generated gas, so the liquid in the methane fermentation tank 3 is stirred and subjected to a swirling action, and the fermentation residue is centered. It accumulates at the bottom, making it easy to remove the residue. The liquid condensed in the scrubber 6 is separated into oil 20 by a liquid treatment device 13, and harmful substances 2 that obstruct the sliding of anaerobic organisms are removed.
After removing 1, the remaining water containing carbohydrates is also supplied to the methane fermentation tank 3 and fermented.
熱分解生成ガスのうちメタン発酵槽３に供給さ
れない残部の高温ガスはその顕熱を熱分解装置８
の加熱源として利用後、ガス洗滌装置１８を経て
ガス貯槽１９に至る。熱分解生成ガスを全部発酵
槽３に供給する場合は、加熱装置８の加熱源は生
成ガスの部分燃焼熱を利用する。 The remaining high-temperature gas that is not supplied to the methane fermentation tank 3 out of the pyrolysis product gas is transferred to the pyrolysis device 8 to transfer its sensible heat.
After being used as a heating source, the gas passes through a gas cleaning device 18 and reaches a gas storage tank 19. When all of the pyrolysis product gas is supplied to the fermenter 3, the heat source of the heating device 8 uses the partial combustion heat of the product gas.
熱分解によつて分解されないものは無機残渣２
３として排出される。 Those that are not decomposed by thermal decomposition are inorganic residues 2.
It is discharged as 3.
以上のプロセスにおける熱分解の諸条件は、例
えば次の如くである。 The conditions for thermal decomposition in the above process are, for example, as follows.
被分解物 物質群（紙、プラスチツク主体）
熱分解方式 ２塔循環式流動層熱分解
（空気混入が殆どない無酸素熱分解）
熱分解圧力 大気圧＋1000mmAq
熱分解時間 ２〜３分間
スクラバー洗浄後のガス温度 平均70℃
生成ガス組成（代表例、スクラバー洗浄後）
H2 濃度25.5％
N2 2.3
CH4 18.1
CO 20.5
CO2 22.1
C2H4 5.2
C2H6 2.3
C3Hn 3.6
C4Hn 0.7
他微量成分 微量
本実施例は上記の如く構成され作用するので、
熱分解装置とメタン発酵装置とが併設されている
都市ごみの処理方式において特に有効であり、両
装置が相互に連繁し、両装置の特質の相剰効果が
得られる。 Materials to be decomposed Substance group (mainly paper and plastic) Pyrolysis method Two-column circulating fluidized bed pyrolysis (oxygen-free pyrolysis with almost no air inclusion) Pyrolysis pressure Atmospheric pressure + 1000mmAq Pyrolysis time 2 to 3 minutes After cleaning the scrubber Gas temperature Average 70℃ Produced gas composition (typical example, after scrubber cleaning) H 2 concentration 25.5% N 2 2.3 CH 4 18.1 CO 20.5 CO 2 22.1 C 2 H 4 5.2 C 2 H 6 2.3 C 3 H n 3.6 C 4 H n 0.7 Other trace components Trace amount This example is constructed and operates as described above, so
This method is particularly effective in a municipal waste treatment system in which a pyrolysis device and a methane fermentation device are installed together, and the two devices are connected to each other, so that the mutual effects of the characteristics of both devices can be obtained.
即ち、第１に熱分解生成物であるガスやその凝
縮液を、特に化学反応装置を設けることなくメタ
ンガスに交換することができ、単なる燃料として
の回収のほか化学成品の原料として利用すること
もできるようになる。第２に熱分解ガスは高温で
あり、この高温の生成ガスを直接メタン発酵槽３
内に吹き込んで加熱することにより伝熱効率が向
上しまた伝熱管が省略できる。第３に、熱分解ガ
ス中には若干シアン、フエノール、塩化水素、重
金属などの有害物質が含まれるが、その量がある
限界以下ならばメタン発酵槽内に混入しても嫌気
性生物の馴化作用に依つてメタン化に支障をきた
さないのみならず、シアン、フエノールは生物酸
化により無害化され得るので熱分解生成ガス中に
残存した微量の有害物質の浄化をはかることもで
きる。第４に、高速メタン発酵法においては発酵
槽内のスカムの発生を防ぐための撹拌が必要であ
るが、熱分解生成ガスを槽内に吹き込む際のエジ
エクタ作用により槽内液を駆動して撹拌すること
により機械式の撹拌機を不要とし、またエジエク
タの作用でガスが微細化し、メタン化が容易とな
り、その上旋回流を生ぜしめることにより残渣の
分離が容易となる。第５には既にメタン発酵設備
と熱分解装置が設けられている都市ごみ処理プラ
ントにおいては、本実施例の如く改造することが
容易であることである。 That is, firstly, the gas that is a thermal decomposition product and its condensate can be exchanged into methane gas without the need for a special chemical reaction device, and it can be used not only as a simple fuel but also as a raw material for chemical products. become able to. Second, the pyrolysis gas is high temperature, and this high temperature generated gas is directly transferred to the methane fermentation tank.
Heat transfer efficiency is improved by blowing into the tube and heating, and heat transfer tubes can be omitted. Third, pyrolysis gas contains some harmful substances such as cyanide, phenol, hydrogen chloride, and heavy metals, but if the amount is below a certain limit, anaerobic organisms will not be able to get used to it even if it is mixed into the methane fermentation tank. Not only does this action not interfere with methanation, but also cyanide and phenol can be rendered harmless through biological oxidation, making it possible to purify trace amounts of harmful substances remaining in the gas produced by thermal decomposition. Fourth, in the high-speed methane fermentation method, stirring is required to prevent the generation of scum in the fermenter, but the ejector action when blowing the pyrolysis product gas into the tank drives the liquid in the tank and stirs it. This eliminates the need for a mechanical stirrer, and the action of the ejector makes the gas finer, making it easier to methanize, and furthermore, creating a swirling flow makes it easier to separate the residue. Fifth, in a municipal waste treatment plant that is already equipped with methane fermentation equipment and a pyrolysis device, it is easy to modify it as in this embodiment.
さらに第６には、中間生成物が熱分解ガスであ
つてガス状で取り扱い易く、パイプラインで任意
の場所に容易に輸送ができ、輸送設備が簡単とな
り、第７には、この中間生成物である熱分解生成
物はメタン化のほかに、精製して燃料とする、な
ど他の利用価値の高い物質への改質が可能であ
り、燃料とメタンとの需要の変動に応じて生成量
の比の調整を行うことができる。 Furthermore, sixthly, the intermediate product is a pyrolysis gas, which is gaseous and easy to handle, and can be easily transported to any location by pipeline, making transportation equipment simple; and seventhly, this intermediate product In addition to methanation, the thermal decomposition products can be refined into other substances with high utility value, such as being used as fuel. The ratio can be adjusted.
本発明により、熱分解プロセスとメタン発酵プ
ロセスの特質の相剰効果が得られ、特別な化学反
応装置を設けることなく熱分解生成物をメタン化
して広い用途に供することができ、温度の高い生
成ガスを直接メタン発酵液に供給することによつ
て特別な加熱エネルギー源及びその装置を必要と
することなく発酵部分を適温に保つことができ発
酵を促進せしめ、その上伝熱管などを要さず直接
熱交換を行つているので伝熱効果がよく、中間生
成物の熱分解ガスはガス状なので輸送などの扱い
が容易であり、また、燃料化などの他の有用処理
も行えるのでメタンと燃料との需要に対するバラ
ンスをとることができる、都市ごみの改質方法を
提供することができ、実用上、資源回収上極めて
大なる効果を奏することができる。 According to the present invention, a mutual effect of the characteristics of the pyrolysis process and the methane fermentation process is obtained, and pyrolysis products can be methanized for a wide range of applications without the need for special chemical reaction equipment. By supplying gas directly to the methane fermentation liquid, the fermentation part can be kept at an appropriate temperature without the need for a special heating energy source or equipment, promoting fermentation, and furthermore, there is no need for heat transfer tubes, etc. Since direct heat exchange is performed, the heat transfer effect is good, and the intermediate product pyrolysis gas is gaseous, so it is easy to transport and handle.It can also be used for other useful processes such as turning it into fuel, so it can be used to convert methane into fuel. It is possible to provide a method for reforming municipal waste that can balance the demand for waste, and it can be extremely effective in terms of practical use and resource recovery.
図面は本発明の実施例を示し、第１図はフロー
チヤート、第２図はメタン発酵槽の平面図であ
る。
１……分別装置、２……混合槽、３……メタン
発酵槽、４……脱水装置、５……熱分解装置、６
……スクラバー、７……ブロワ、８……加熱装
置、９……エジエクタ、１０……磁選機、１１，
１２……管路、１３……液処理装置、１４……都
市ごみ供給路、１５……下水スラツジ供給路、１
６……排水処理装置、１７……鉄分、１８……ガ
ス洗滌装置、１９……ガス貯槽、２０……油分、
２１……有害物質、２２……流れ、２３……無機
残渣。
The drawings show an embodiment of the present invention, and FIG. 1 is a flowchart, and FIG. 2 is a plan view of a methane fermentation tank. 1... Fractionation device, 2... Mixing tank, 3... Methane fermentation tank, 4... Dehydration device, 5... Pyrolysis device, 6
... scrubber, 7 ... blower, 8 ... heating device, 9 ... ejector, 10 ... magnetic separator, 11,
12...Pipe line, 13...Liquid treatment device, 14...Municipal waste supply line, 15...Sewage sludge supply line, 1
6...Wastewater treatment equipment, 17...Iron content, 18...Gas cleaning equipment, 19...Gas storage tank, 20...Oil content,
21...Harmful substance, 22...Flow, 23...Inorganic residue.
Claims (1)
成物の少なくとも一部を、メタン発酵槽内に供給
し、嫌気性生物の作用によつてメタン化すること
を特徴とする都市ごみの改質方法。 ２ 都市ごみを熱分解処理し、得られた熱分解生
成物の少なくとも一部を噴流としてメタン発酵液
に供給して撹拌すると共に、前記熱分解生成物の
少なくとも一部を、嫌気性生物の作用によつてメ
タン化することを特徴とする都市ごみの改質方
法。 ３ 都市ごみを熱分解処理し、得られた熱分解生
成物の少なくとも一部を、嫌気性生物の活動を妨
害する有害物質を除去する除去処理を行つた後嫌
気性生物の作用によつてメタン化することを特徴
とする都市ごみの改質方法。[Claims] 1. A method characterized by pyrolyzing municipal waste, supplying at least a part of the obtained pyrolysis product into a methane fermentation tank, and converting it into methane by the action of anaerobic organisms. A method for reforming municipal waste. 2. Pyrolyzing municipal waste, supplying at least a part of the obtained pyrolysis product as a jet to a methane fermentation liquid and stirring it, and at least part of the pyrolysis product being subjected to the action of anaerobic organisms. A method for reforming municipal waste characterized by converting it into methane. 3 Municipal waste is pyrolyzed and at least a portion of the resulting pyrolysis products are subjected to removal treatment to remove harmful substances that interfere with the activities of anaerobic organisms, and then methane is converted into methane by the action of anaerobic organisms. A method for reforming municipal waste, which is characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8570976A JPS5310608A (en) | 1976-07-19 | 1976-07-19 | Methanization of urban wastes and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8570976A JPS5310608A (en) | 1976-07-19 | 1976-07-19 | Methanization of urban wastes and its apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57019818A Division JPS57150489A (en) | 1982-02-12 | 1982-02-12 | Treatment of municipal waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5310608A JPS5310608A (en) | 1978-01-31 |
| JPS6211914B2 true JPS6211914B2 (en) | 1987-03-16 |
Family
ID=13866346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8570976A Granted JPS5310608A (en) | 1976-07-19 | 1976-07-19 | Methanization of urban wastes and its apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5310608A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5552381A (en) * | 1978-10-11 | 1980-04-16 | Agency Of Ind Science & Technol | Energy recovery from solid municipal wastes |
-
1976
- 1976-07-19 JP JP8570976A patent/JPS5310608A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5310608A (en) | 1978-01-31 |
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