JP2005270778A - Digestion gas utilizing method and digestion gas utilizing apparatus - Google Patents

Digestion gas utilizing method and digestion gas utilizing apparatus Download PDF

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JP2005270778A
JP2005270778A JP2004086959A JP2004086959A JP2005270778A JP 2005270778 A JP2005270778 A JP 2005270778A JP 2004086959 A JP2004086959 A JP 2004086959A JP 2004086959 A JP2004086959 A JP 2004086959A JP 2005270778 A JP2005270778 A JP 2005270778A
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digestion gas
gas
methane fermentation
heat
digestion
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Minoru Fukuhara
稔 福原
Toshiya Suzuki
俊也 鈴木
Katsuhiko Takeno
勝彦 竹野
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Ebara Corp
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Ebara Corp
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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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/20—Waste processing or separation
    • 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
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digestion gas utilizing method constituted so as to install utilization equipment in the order of higher using temperature of heat energy to effectively utilize a digestion gas and waste heat obtained by methane fermentation, and a digestion gas utilizing apparatus. <P>SOLUTION: In the digestion gas utilizing method for effectively utilizing the digestion gas obtained by methane fermentation, a part of the digestion gas is used as the fuel of power generation equipment and the heat of the exhaust gas from the power generation equipment is recovered by a waste heat boiler not only to obtain high temperature water but also to use the high temperature water and/or residual part of the digestion gas as the heat source of a waste heat utilizing/absorbing refrigerating machine. A part of the high temperature water obtained by the heat recovery in the waste heat boiler can be used for heating in methane fermentation. Further, hot water and cold water obtained from the waste heat utilizing/absorbing refrigerating machine can be used as the dehumidifying heat source of a low temperature dryer used in the drying of digested sludge obtained by methane fermentation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、消化ガスの利用に係り、特に、汚泥処理センター内で発生する消化ガスを有効利用し、乾燥汚泥の製造原価を低減することができる消化ガスの利用方法と利用装置に関する。   The present invention relates to the use of digestion gas, and more particularly to a digestion gas utilization method and utilization apparatus that can effectively utilize digestion gas generated in a sludge treatment center and reduce the production cost of dry sludge.

従来からメタン発酵により得られる消化ガスは、発酵槽の加温等に用いるボイラ設備や発電設備等の燃料とに用いられており、それらの設備への消化ガスの供給は、ガスホルダーから並列に各設備に定格量を供給していた。
また、メタン発酵からの消化汚泥の乾燥設備として主な方式は、回転乾燥機、気流乾燥機、低温乾燥機等が上げられる。これら施設は、回転乾燥機、気流乾燥機では、熱風炉からの熱風により乾燥するため、熱風を生成するガス、油などの燃料を外部から供給する必要があると共に、排ガス処理設備や煙突が必要となる。また、低温乾燥機では、冷凍機を作動させるための熱源となるガス、重油などの燃料が必要となる。 Conventionally, digestion gas obtained by methane fermentation has been used as fuel for boiler equipment and power generation equipment used for heating the fermenter, etc., and the supply of digestion gas to those facilities is done in parallel from the gas holder. The rated amount was supplied to each facility.
Moreover, as a drying system for digested sludge from methane fermentation, a rotary dryer, a flash dryer, a low-temperature dryer, and the like can be given. In these facilities, rotary dryers and air dryers are dried by hot air from a hot stove, so it is necessary to supply gas, oil, and other fuels that generate hot air from the outside, as well as exhaust gas treatment equipment and chimneys. It becomes. In addition, the low-temperature dryer requires a fuel such as gas or heavy oil that becomes a heat source for operating the refrigerator.

汚泥再生処理センターで発生した消化汚泥は、助燃材、堆肥などの原料となっているが、前処理として汚泥乾燥機で含水率を調整する必要がある。乾燥機設備の方式は、排ガス処理の不要な低温乾燥機（ヒートポンプバンド乾燥式）が近年多く採用されているが、燃料として重油、ガス等が必要であり、乾燥汚泥の製造原価が高くなる一要因となっている。
また、消化ガスについては、発酵槽の加温や発電等のエネルギーとして利用されるが、発生量の変動が大きく、余剰分は燃焼装置で焼却処分し、排熱は大気放出している。このためバイオマス利用効率は低く、積極的な施設の採用には至って
いない。
特開２００３−２６０４５４号公報 特開２００２−２７６３８７号公報 Digested sludge generated at the sludge recycling treatment center is a raw material such as combustible material and compost, but it is necessary to adjust the moisture content with a sludge dryer as pretreatment. In recent years, low-temperature dryers (heat pump band drying type) that do not require exhaust gas treatment have been adopted as the drying equipment, but heavy oil, gas, etc. are required as fuel, which increases the production cost of dry sludge. It is a factor.
In addition, digestion gas is used as energy for heating the fermenter, generating electricity, etc., but the amount of generated gas varies greatly, the surplus is incinerated with a combustion device, and the exhaust heat is released into the atmosphere. For this reason, biomass utilization efficiency is low, and it has not led to active adoption of facilities.
JP 2003-260454 A JP 2002-276387 A

本発明は、上記従来技術に鑑み、メタン発酵により得られる消化ガスを、熱エネルギーの使用温度が高い順に、発電設備、排熱ボイラ、高温水タンク、排熱吸収式冷凍機等を配置して、消化ガス、排熱を有効に利用することができる消化ガスの利用方法と利用装置を提供することを課題とする。   In view of the above prior art, the present invention arranges digestion gas obtained by methane fermentation in the order of the highest use temperature of heat energy, such as power generation equipment, waste heat boiler, high-temperature water tank, waste heat absorption refrigerator, etc. It is an object of the present invention to provide a digestion gas utilization method and utilization device that can effectively utilize digestion gas and exhaust heat.

上記課題を解決するために、本発明では、メタン発酵により得られる消化ガスを有効利用する消化ガスの利用方法において、該消化ガスの一部を発電設備の燃料として用いたのち、該設備から排出する排ガスを排熱ボイラで熱回収して高温水を得ると共に、該高温水及び／又は前記消化ガスの残部を排熱利用吸収冷凍機の熱源として用いることを特徴とする消化ガスの利用方法としたものである。
前記消化ガスの利用方法において、排熱ボイラで熱回収して得た高温水の一部は、前記メタン発酵の加温用に用いることができ、また、前記排熱利用吸収冷凍機から得られる温水及び冷水を、前記メタン発酵により得られる消化汚泥の乾燥に用いる低温乾燥機の除湿用熱源として用いることができる。 In order to solve the above-mentioned problems, in the present invention, in a digestion gas utilization method for effectively utilizing digestion gas obtained by methane fermentation, a part of the digestion gas is used as fuel for power generation equipment, and then discharged from the equipment. A method for using digestion gas, characterized in that high-temperature water is obtained by recovering heat from the exhaust gas to be recovered with an exhaust heat boiler, and the high-temperature water and / or the remainder of the digestion gas is used as a heat source for an exhaust heat utilization absorption refrigerator. It is a thing.
In the digestion gas utilization method, a part of the high-temperature water obtained by heat recovery with the exhaust heat boiler can be used for heating of the methane fermentation, and is obtained from the exhaust heat utilization absorption refrigerator. Hot water and cold water can be used as a heat source for dehumidification of a low-temperature dryer used for drying digested sludge obtained by the methane fermentation.

また、本発明では、メタン発酵により得られる消化ガスを有効利用する消化ガスの利用装置において、メタン発酵槽と、該メタン発酵槽から得られる消化ガスを燃料とする発電設備と、該発電設備からの排ガスを熱源とする排熱ボイラと、該排熱ボイラからの高温水及び／又は前記の消化ガスを熱源とする排熱利用吸収冷凍機とを有することを特徴とする消化ガスの利用装置としたものである。
前記消化ガスの利用装置において、前記排熱ボイラからの高温水を前記メタン発酵槽の加温に用いる流路を有すると共に、該メタン発酵槽からの消化汚泥を脱水する消化汚泥脱水機と、該脱水汚泥を乾燥するための前記排熱利用吸収冷凍機からの温水と冷水を除湿に用いる低温乾燥機とを有することができる。 Further, in the present invention, in a digestion gas utilization apparatus that effectively utilizes digestion gas obtained by methane fermentation, a methane fermentation tank, a power generation facility using digestion gas obtained from the methane fermentation tank as fuel, and the power generation facility A digester gas utilization apparatus comprising: a waste heat boiler using the exhaust gas as a heat source; and a high-temperature water from the waste heat boiler and / or an exhaust heat utilization absorption refrigerator using the digest gas as a heat source; It is a thing.
In the digestion gas utilization device, the digestion sludge dehydrator dehydrates the digested sludge from the methane fermentation tank, and has a flow path that uses the high-temperature water from the exhaust heat boiler to heat the methane fermentation tank. It can have a low-temperature dryer which uses warm water and cold water from the above-mentioned exhaust heat utilization absorption refrigerator for drying dehydrated sludge for dehumidification.

本発明によれば、次のような効果を奏することができる。
１）消化ガスの利用として、熱エネルギーの使用温度が高い順に、発電設備、排熱ボイラ、高温水タンク、排熱吸収式冷凍機を配置して、損失が最小となる装置構成とすることで、バイオマスの利用効率が大幅に向上した。
２）排熱吸収冷凍機の熱源は、消化ガスの余剰分と高温水タンクの高温水でまかないガス、油等の燃料消費を大幅に減少した。
３）消化汚泥は、低温乾燥機を採用して発電設備からの電力と、排熱吸収式冷凍機の冷温水を使用することで、乾燥汚泥の製造原価を大幅に節約した。
４）バイオマスの普及促進が図れる。 According to the present invention, the following effects can be achieved.
1) For the use of digestion gas, by arranging the power generation equipment, waste heat boiler, high-temperature water tank, waste heat absorption chiller in the order of the highest use temperature of heat energy, it will be a device configuration that minimizes loss The utilization efficiency of biomass has been greatly improved.
2) The heat source of the exhaust heat absorption refrigerator has significantly reduced the consumption of fuel such as gas, oil, etc. that cannot be covered with surplus digestion gas and high temperature water in the high temperature water tank.
3) Digested sludge has greatly reduced the production cost of dried sludge by using a low-temperature dryer and using the power from the power generation facility and the cold / hot water of the exhaust heat absorption refrigerator.
4) Promote the spread of biomass.

以下、本発明を図１を用いて説明する。図１は、本発明の消化ガスの利用装置の一例を示す概略構成図であり、汚泥再生処理センターに搬入された生ごみ、し尿汚泥等は、消化ガス発酵槽に入り消化ガス及び消化汚泥を生成する。消化ガスは、ガスホルダーに入り定格量を貯留する。消化汚泥は、汚泥脱水機で脱水汚泥となり、脱水汚泥ホッパに貯留されて汚泥乾燥機に導入される。
ガスホルダーから出た消化ガスは、発電設備の燃料として消費され、発電電力は所内動力に使用する。発電設備から出た排ガスは、排熱ボイラを通り排熱回収して高温水タンクに高温水として貯える。
高温水は、発酵槽の加温及び排熱利用吸収冷凍機の熱源に使用する。 The present invention will be described below with reference to FIG. FIG. 1 is a schematic configuration diagram showing an example of a digestion gas utilization apparatus according to the present invention. Garbage, human waste sludge, etc. carried into a sludge regeneration treatment center enter a digestion gas fermentation tank, and digestion gas and digested sludge are separated. Generate. Digestion gas enters the gas holder and stores the rated amount. Digested sludge is dewatered by a sludge dewatering machine, stored in a dewatered sludge hopper, and introduced into the sludge dryer.
Digested gas from the gas holder is consumed as fuel for the power generation equipment, and the generated power is used for in-house power. The exhaust gas emitted from the power generation facility passes through the exhaust heat boiler, recovers the exhaust heat, and stores it as high temperature water in a high temperature water tank.
Hot water is used as a heat source for the heating of the fermenter and the absorption refrigerator utilizing exhaust heat.

排熱利用吸収冷凍機は、ガスホルダーから余剰分の消化ガスと高温水タンクからの高温水を熱源とし温水と冷水を作り、それぞれ温水タンク、冷水タンクに貯える。
脱水汚泥ホッパから切り出された脱水汚泥は、低温乾燥機に投入し、乾燥機内で脱水汚泥が温風と均等に接触し乾燥汚泥となる。乾燥機を出た温風は、除湿機に入り冷水タンクより送られた冷水管を通過して減温、除湿される。更に、温水タンクより送られた温水管を通過して昇温され、循環ファンを通り汚泥乾燥機に入る。脱水汚泥は含水率５０％以下の乾燥汚泥となり、乾燥汚泥ホッパに貯える。 The heat absorption absorption refrigerator uses hot digestion gas from the gas holder and hot water from the hot water tank as heat sources to produce hot water and cold water, which are stored in the hot water tank and cold water tank, respectively.
The dewatered sludge cut out from the dewatered sludge hopper is put into a low-temperature dryer, and the dewatered sludge is uniformly contacted with the warm air in the dryer to become dry sludge. The warm air coming out of the dryer passes through the cold water pipe sent from the cold water tank into the dehumidifier and is dehumidified and dehumidified. Further, the temperature is raised through the hot water pipe sent from the hot water tank, passes through the circulation fan, and enters the sludge dryer. The dehydrated sludge becomes dry sludge with a moisture content of 50% or less and is stored in a dry sludge hopper.

次に、本発明の消化ガスの利用装置の全体を示すフロー構成図である図２を用いて、具体的に説明する。
図２の消化ガスの利用装置は、消化ガス製造設備１と、熱電供給設備２と、汚泥乾燥設備３とで構成されており、消化ガス製造設備１は、メタン発酵槽１１、ガスホルダー１２、消化汚泥脱水機１３、脱水汚泥ホッパ１４からなり、熱電供給設備２は、発電設備２１、排熱ボイラ２２、高温水タンク２３、排熱利用吸収冷凍機２４、温水タンク２５、冷水タンク２６からなり、また、汚泥乾燥設備３は、低温乾燥機３１、除湿機３２、循環ファン３３、乾燥汚泥ホッパ３４からなっている。 Next, it demonstrates concretely using FIG. 2 which is a flow block diagram which shows the whole digester gas utilization apparatus of this invention.
The digestion gas utilization apparatus shown in FIG. 2 includes a digestion gas production facility 1, a thermoelectric supply facility 2, and a sludge drying facility 3. The digestion gas production facility 1 includes a methane fermentation tank 11, a gas holder 12, It consists of a digested sludge dewatering machine 13 and a dewatered sludge hopper 14, and the thermoelectric supply equipment 2 consists of a power generation equipment 21, a waste heat boiler 22, a high temperature water tank 23, a waste heat utilization absorption refrigerator 24, a hot water tank 25, and a cold water tank 26. The sludge drying facility 3 includes a low temperature dryer 31, a dehumidifier 32, a circulation fan 33, and a dried sludge hopper 34.

図２のフローを説明すると、汚泥再生処理センターに搬入された生ごみ、し尿汚泥等の発酵原料１５は、メタン発酵槽１１に入り消化ガス及び消化汚泥を生成する。消化ガス１６は、ガスホルダー１２に入り定格量を貯留する。消化汚泥１７は、汚泥脱水機１３で含水率８０％の脱水汚泥となり、脱水汚泥ホッパ１４に貯留する。
ガスホルダー１２から出た消化ガスは、発電設備２１の燃料として消費され、発電電力は所内動力に使用する。
発電設備２１から出た３００〜４００℃の排ガスは、排熱ボイラ２２を通り排熱回収して高温水タンク２３に約９０℃温水として貯える。９０℃温水は、発酵槽１１の加温２７及び排熱利用吸収冷凍機２４の熱源に使用する。排熱利用吸収冷凍機２４は、ガスホルダー１２から余剰分の消化ガス２０と高温水タンク２３からの高温水を熱源として、約４０℃の熱媒液２８と約１０℃の冷媒液２９を作り、それぞれ温水タンク２５、冷水タンク２６に貯える。 The flow of FIG. 2 will be explained. Fermentation raw materials 15 such as garbage and human waste sludge carried into the sludge regeneration treatment center enter the methane fermentation tank 11 to generate digested gas and digested sludge. The digestion gas 16 enters the gas holder 12 and stores the rated amount. The digested sludge 17 is dehydrated sludge having a water content of 80% by the sludge dehydrator 13 and is stored in the dehydrated sludge hopper 14.
Digested gas that has come out of the gas holder 12 is consumed as fuel for the power generation facility 21, and the generated power is used for in-house power.
The exhaust gas at 300 to 400 ° C. from the power generation facility 21 passes through the exhaust heat boiler 22 to recover the exhaust heat and is stored in the high-temperature water tank 23 as hot water at about 90 ° C. The 90 ° C. hot water is used as a heating source 27 for the fermenter 11 and a heat source for the exhaust heat utilization absorption refrigerator 24. The exhaust heat absorption chiller 24 uses the excess digestion gas 20 from the gas holder 12 and the high-temperature water from the high-temperature water tank 23 as heat sources to produce a heating medium liquid 28 at about 40 ° C. and a refrigerant liquid 29 at about 10 ° C. These are stored in the hot water tank 25 and the cold water tank 26, respectively.

脱水汚泥ホッパ１４から切り出された脱水汚泥は、低温乾燥機３１に投入し、乾燥機内で脱水汚泥が約４０℃の温風と均等に接触し乾燥汚泥となる。乾燥機３１を出た温風は、汚泥の水分を含み除湿機３２に入り冷水タンク２６より送られた約１０℃の冷水から通る冷水管３６を通過して、約１５℃（絶対湿度１００％）に減温、除湿される。更に、温水タンク２５より送られた４０℃の温水が通る温水管３５を通過して、約３５℃（絶対湿度３０％程度）に昇温され、循環ファン３３を通り乾燥機３１に入る。脱水汚泥は、含水率５０％以下の乾燥汚泥となり、乾燥汚泥ホッパ３４に貯える。   The dewatered sludge cut out from the dewatered sludge hopper 14 is put into the low-temperature dryer 31, and the dewatered sludge is uniformly contacted with warm air of about 40 ° C. in the dryer to become dry sludge. The warm air leaving the dryer 31 enters the dehumidifier 32 containing the sludge moisture, passes through the cold water pipe 36 passing from the cold water of about 10 ° C. sent from the cold water tank 26, and is about 15 ° C. (100% absolute humidity). ) Is dehumidified and dehumidified. Further, it passes through a hot water pipe 35 through which hot water of 40 ° C. sent from the hot water tank 25 passes, and is heated to about 35 ° C. (about 30% absolute humidity), and enters the dryer 31 through the circulation fan 33. The dewatered sludge becomes dry sludge having a moisture content of 50% or less and is stored in the dry sludge hopper 34.

本発明の消化ガスの利用装置の一例を示す概略構成図。The schematic block diagram which shows an example of the utilization apparatus of the digestion gas of this invention. 本発明の消化ガスの利用装置の全体を示す概略構成図。The schematic block diagram which shows the whole utilization apparatus of the digestion gas of this invention.

符号の説明Explanation of symbols

１：消化ガス製造設備、２：熱電供給設備、３：汚泥乾燥設備、４：助燃材又は堆肥原料、１１：メタン発酵槽、１２：ガスホルダー、１３：消化汚泥脱水機、１４：脱水汚泥ホッパ、１５：発酵原料、１６：消化ガス、１７：消化汚泥、２１：発電設備、２２：排熱ボイラ、２３：高温水タンク、２４：排熱利用吸収冷凍機、２５：温水タンク、２６：冷水タンク、３１：低温乾燥機、３２：除湿機、３３：循環ファン、３４：乾燥汚泥ホッパ   1: Digestion gas manufacturing equipment, 2: Thermoelectric supply equipment, 3: Sludge drying equipment, 4: Combustion material or compost raw material, 11: Methane fermenter, 12: Gas holder, 13: Digested sludge dehydrator, 14: Dehydrated sludge hopper 15: Fermentation raw material, 16: Digestion gas, 17: Digestion sludge, 21: Power generation equipment, 22: Exhaust heat boiler, 23: High temperature water tank, 24: Exhaust heat utilization absorption refrigerator, 25: Hot water tank, 26: Cold water Tank, 31: Low temperature dryer, 32: Dehumidifier, 33: Circulation fan, 34: Dry sludge hopper

Claims (5)

メタン発酵により得られる消化ガスを有効利用する消化ガスの利用方法において、該消化ガスの一部を発電設備の燃料として用いたのち、該設備から排出する排ガスを排熱ボイラで熱回収して高温水を得ると共に、該高温水及び／又は前記消化ガスの残部を排熱利用吸収冷凍機の熱源として用いることを特徴とする消化ガスの利用方法。   In a method of using digestion gas that effectively uses digestion gas obtained by methane fermentation, after using a part of the digestion gas as fuel for power generation equipment, the exhaust gas discharged from the equipment is recovered by heat with a heat exhaust boiler, A method for using digestion gas, wherein water is obtained and the high-temperature water and / or the remainder of the digestion gas are used as a heat source for an exhaust heat utilization absorption refrigerator. 前記排熱ボイラで熱回収して得た高温水の一部は、前記メタン発酵の加温用に用いることを特徴とする請求項１記載の消化ガスの利用方法。   The method for using digestion gas according to claim 1, wherein a part of the high-temperature water obtained by heat recovery with the exhaust heat boiler is used for heating of the methane fermentation. 請求項１又は２記載の消化ガスの利用方法において、前記排熱利用吸収冷凍機から得られる温水及び冷水を、前記メタン発酵により得られる消化汚泥の乾燥に用いる低温乾燥機の除湿用熱源として用いることを特徴とする消化ガスの利用方法。   3. The digestion gas utilization method according to claim 1 or 2, wherein hot water and cold water obtained from the exhaust heat utilization absorption refrigerator are used as a heat source for dehumidification of a low temperature dryer used for drying digested sludge obtained by the methane fermentation. A method of using digestive gas, characterized by that. メタン発酵により得られる消化ガスを有効利用する消化ガスの利用装置において、メタン発酵槽と、該メタン発酵槽から得られる消化ガスを燃料とする発電設備と、該発電設備からの排ガスを熱源とする排熱ボイラと、該排熱ボイラからの高温水及び／又は前記の消化ガスを熱源とする排熱利用吸収冷凍機とを有することを特徴とする消化ガスの利用装置。   In a digestion gas utilization apparatus that effectively utilizes digestion gas obtained by methane fermentation, a methane fermentation tank, a power generation facility that uses digestion gas obtained from the methane fermentation tank as fuel, and exhaust gas from the power generation facility as a heat source A digestion gas utilization apparatus comprising: an exhaust heat boiler; and an exhaust heat utilization absorption refrigerator that uses high-temperature water from the exhaust heat boiler and / or the digestion gas as a heat source. 請求項４記載の消化ガスの利用装置において、前記排熱ボイラからの高温水を前記メタン発酵槽の加温に用いる流路を有すると共に、該メタン発酵槽からの消化汚泥を脱水する消化汚泥脱水機と、該脱水汚泥を乾燥するための前記排熱利用吸収冷凍機からの温水と冷水を除湿に用いる低温乾燥機とを有することを特徴とする消化ガスの利用装置。   The digestion gas utilization apparatus of Claim 4 WHEREIN: While having a flow path which uses the high temperature water from the said waste heat boiler for the heating of the said methane fermentation tank, the digested sludge dehydration which dehydrates the digested sludge from this methane fermentation tank And a low-temperature dryer for dehumidifying hot water and cold water from the exhaust heat utilization absorption refrigerator for drying the dewatered sludge.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105044A (en) * 2012-11-12 2013-05-15 黄陈超 Biogas heating dryer
CN104438289A (en) * 2014-11-21 2015-03-25 广东源盛生态环保科技有限公司 Zero waste emission power generation method
JP2015131263A (en) * 2014-01-10 2015-07-23 月島機械株式会社 Organic waste processor, dryer for use in organic waste processor, and processing method of organic waste
CN111438160A (en) * 2020-03-20 2020-07-24 蔚复来(浙江)科技股份有限公司 Fermentation device and method for circularly dehumidifying
CN111872048A (en) * 2020-07-30 2020-11-03 山东大学 Wet garbage humidifying fermentation power generation system and process

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565199A (en) * 1979-06-26 1981-01-20 Fuji Electric Co Ltd Dehydration of sludge by freezing and thawing method
JPS57156091A (en) * 1981-03-23 1982-09-27 Kurita Water Ind Ltd Treating device for organic waste
JPH04270870A (en) * 1991-02-25 1992-09-28 Ebara Corp Absorption type refrigerating device utilizing waste heat
JPH05288327A (en) * 1992-04-07 1993-11-02 Kumagai Gumi Co Ltd Energy recycling device
JPH0824899A (en) * 1994-07-20 1996-01-30 Ohbayashi Corp Organic waste treatment
JPH0854156A (en) * 1993-12-27 1996-02-27 Ebara Corp Cooling and heating device utilizing exhaust heat of engine and operating method thereof
JPH09299994A (en) * 1996-05-13 1997-11-25 Oohiro:Kk Methane fermentation treatment of poultry manure
JP2001276772A (en) * 2000-03-30 2001-10-09 Kawasaki Heavy Ind Ltd Comprehensive organic waste disposal method and device therefor
JP2003023887A (en) * 2001-07-19 2003-01-28 Kubota Corp Method for circulating type protected cultivation
JP2003062421A (en) * 2001-08-23 2003-03-04 Mitsubishi Heavy Ind Ltd Biological desulfurization equipment
JP2003285034A (en) * 2002-03-28 2003-10-07 Takuma Co Ltd Organic type waste treatment system and organic type waste treatment method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565199A (en) * 1979-06-26 1981-01-20 Fuji Electric Co Ltd Dehydration of sludge by freezing and thawing method
JPS57156091A (en) * 1981-03-23 1982-09-27 Kurita Water Ind Ltd Treating device for organic waste
JPH04270870A (en) * 1991-02-25 1992-09-28 Ebara Corp Absorption type refrigerating device utilizing waste heat
JPH05288327A (en) * 1992-04-07 1993-11-02 Kumagai Gumi Co Ltd Energy recycling device
JPH0854156A (en) * 1993-12-27 1996-02-27 Ebara Corp Cooling and heating device utilizing exhaust heat of engine and operating method thereof
JPH0824899A (en) * 1994-07-20 1996-01-30 Ohbayashi Corp Organic waste treatment
JPH09299994A (en) * 1996-05-13 1997-11-25 Oohiro:Kk Methane fermentation treatment of poultry manure
JP2001276772A (en) * 2000-03-30 2001-10-09 Kawasaki Heavy Ind Ltd Comprehensive organic waste disposal method and device therefor
JP2003023887A (en) * 2001-07-19 2003-01-28 Kubota Corp Method for circulating type protected cultivation
JP2003062421A (en) * 2001-08-23 2003-03-04 Mitsubishi Heavy Ind Ltd Biological desulfurization equipment
JP2003285034A (en) * 2002-03-28 2003-10-07 Takuma Co Ltd Organic type waste treatment system and organic type waste treatment method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105044A (en) * 2012-11-12 2013-05-15 黄陈超 Biogas heating dryer
JP2015131263A (en) * 2014-01-10 2015-07-23 月島機械株式会社 Organic waste processor, dryer for use in organic waste processor, and processing method of organic waste
CN104438289A (en) * 2014-11-21 2015-03-25 广东源盛生态环保科技有限公司 Zero waste emission power generation method
CN111438160A (en) * 2020-03-20 2020-07-24 蔚复来(浙江)科技股份有限公司 Fermentation device and method for circularly dehumidifying
CN111872048A (en) * 2020-07-30 2020-11-03 山东大学 Wet garbage humidifying fermentation power generation system and process

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