KR100948287B1 - Integral 2-phase anaerobic digestion reactor, and anaerobic digestion device thereof - Google Patents

Integral 2-phase anaerobic digestion reactor, and anaerobic digestion device thereof Download PDF

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KR100948287B1
KR100948287B1 KR1020090030936A KR20090030936A KR100948287B1 KR 100948287 B1 KR100948287 B1 KR 100948287B1 KR 1020090030936 A KR1020090030936 A KR 1020090030936A KR 20090030936 A KR20090030936 A KR 20090030936A KR 100948287 B1 KR100948287 B1 KR 100948287B1
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tank
anaerobic digestion
fermentation tank
organic waste
acid fermentation
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KR1020090030936A
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Korean (ko)
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박현건
김현배
송한철
윤희철
이보원
황석환
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주식회사 포스코건설
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • 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

Abstract

PURPOSE: An integrated 2 phase anaerobic digestion tank and an anaerobic digestion device having the same are provided to increase the solubilization rates of non-degradable organic materials by optimizing an anaerobic digestion process. CONSTITUTION: An anaerobic digestion device includes the following: a reservoir(110) storing organic materials; a mixing tank(120) mixing the organic materials transferred from the reservoir; a solubilization tank(130) improving biodegradability of the non-degradable organic materials by maintaining temperature in a predetermined temperature range; and an integrated 2 phase anaerobic digestion tank(140) with an acid fermentation tank and a methane fermentation tank while fermenting the organic materials.

Description

일체형 2상 혐기소화조 및 이를 구비하는 혐기소화 장치{Integral 2-Phase Anaerobic Digestion Reactor, and Anaerobic Digestion Device Thereof}Integrated 2-Phase Anaerobic Digestion Reactor, and Anaerobic Digestion Device Thereof

본 발명은 일체형 2상 혐기소화조 및 이를 구비하는 혐기소화 장치에 관한 것으로, 더욱 상세하게는 에너지 절감 및 바이오 가스의 획득량의 증가가 가능하며, 설치 부지를 줄일 수 있는 일체형 2상 혐기소화조 및 이를 구비하는 혐기소화 장치에 관한 것이다. The present invention relates to an integrated two-phase anaerobic digestion tank and an anaerobic digestion apparatus having the same. More specifically, the integrated two-phase anaerobic digestion tank capable of saving energy and increasing the amount of biogas obtained, and reducing the installation site, and the same It relates to an anaerobic digestion apparatus provided.

유기성 폐기물은 통상 농축슬러지, 축산분뇨, 분뇨, 음식물쓰레기, 음폐수(음식물류 폐기물 폐수) 등으로 주 성분으로 유기물질을 함유하고 있어 최근 들어 폐기처분하여야 할 대상에서 재활용 가능한 물질로 인식되고 있다. Organic wastes usually contain concentrated organic sludge, livestock manure, manure, food waste, food waste (food waste wastewater), etc., and have recently been recognized as a recyclable material to be disposed of.

통상의 유기성 폐기물은 함수율이 78-96%인 고상 내지는 슬러리 형태로 발생되며, 수분을 제외한 슬러지의 고형물 중 유기물질은 보통 50-95%로 다양한 범위 내에 함유하고 있으며, 이로 인한 에너지 회수율(소화효율)은 보통 50% 내외에 달하고 있다. Conventional organic wastes are generated in the form of solids or slurries with a water content of 78-96%, and organic matters in sludge solids other than water are usually contained in various ranges of 50-95%, resulting in energy recovery rate (digestion efficiency). ) Is usually around 50%.

2008년 기준으로 우리나라에서는 유기성 폐기물이 매일 398,303톤씩 발생하고 있으며, 이들 대부분은 재활용되며 잔여폐기물은 해양투기, 소각, 매립을 통해 처리하고 있어, 이는 환경문제나 사회적인 여러가지 문제를 야기시키고 있다. 이에 정부에서는 2011년까지 유기성 폐기물의 해양투기 금지법을 만들어 유기성 폐기물의 육상에서의 재활용 비율을 80%정도까지 높이고자 하고 있는 실정이다.As of 2008, 398,303 tons of organic wastes are generated daily in Korea, most of them are recycled and the remaining wastes are disposed of through ocean dumping, incineration and landfill, which causes environmental and social problems. Accordingly, the government is planning to increase the recycling rate of organic waste on the land by 80% by making the marine dumping law of organic waste by 2011.

일반적인 종래의 유기성 폐기물 재활용방법으로는 사료화, 퇴비화, 액비화, 혐기소화, 호기소화 등의 방법이 있으며, 이중 혐기소화 방법은 하수처리장내 슬러지의 감량화를 위한 목적으로 이루어진다. 한편, 기타 축분 및 음식물쓰레기, 음폐수 등에 대해서는 호기산화 및 해양투기방법이 대부분 이루어지고 있는 실정이다.Conventional organic waste recycling methods include feed, compost, liquefaction, anaerobic digestion, aerobic digestion, etc., double anaerobic digestion method for the purpose of reducing the sludge in the sewage treatment plant. On the other hand, aerobic oxidation and ocean dumping methods are most often performed for other livestock powder, food waste, and effluent water.

혐기소화방식은 가용화 시설없이 대부분 단단소화조 및 재래식 소화조로 이루어져 폐기물의 단계적 분해단계 소요기간이 길고, 난분해 유기물질의 경우 분해기작이 없으며, 분해단계별 미생물이 혼재되어 있어 효율적인 분해단계 진행이 더딘 면이 있다. The anaerobic digestion system consists mostly of single-stage digesters and conventional digesters without solubilization facilities, and it takes a long time for the stage of decomposition of wastes. There is this.

또한 고율 혐기소화방식은 1, 2단소화조로 나뉘어져 펌프 등 이송에 필요한 설비가 추가되며 또한 외부노출 면적이 커져 중온소화의 경우 외부로의 열손실과 직결된다. 한편, 종래 단단 및 재래식 혐기소화방법으로 유기성 폐기물을 처리하는 경우에는 처리시간이 많이 소요되고 많은 부지가 소요되는 단점이 있다. In addition, the high-rate anaerobic digestion system is divided into 1 and 2 stage digesters, and additional equipment necessary for conveying such as pumps is added, and the external exposure area is increased, which is directly related to heat loss to the outside in the case of medium-temperature digestion. On the other hand, when treating the organic waste by the conventional single-stage and conventional anaerobic digestion method has a disadvantage that takes a lot of processing time and a lot of site.

따라서, 본 발명의 목적은, 에너지 절감 및 바이오 가스의 획득량의 증가가 가능하며, 설치 부지를 줄일 수 있는 일체형 2상 혐기소화조 및 이를 구비하는 혐기소화 장치를 제공함에 있다.Accordingly, an object of the present invention is to provide an integrated two-phase anaerobic digestion tank and an anaerobic digestion apparatus having the same, which can reduce energy and increase the amount of biogas obtained, and reduce an installation site.

상기 목적을 달성하기 위한 본 발명에 따른 혐기소화 장치는, 투입되는 유기성 폐기물을 저장하는 저장조; 상기 저장조로부터 이송되는 유기성 폐기물을 혼합하는 혼합조; 상기 혼합조로부터 이송되는 유기성 폐기물 내의 난분해성 유기물질의 생분해도를 향상시키기 위해 유기성 폐기물의 온도를 소정의 온도범위로 유지시키는 가용화조; 및 상기 가용화조로부터 이송되는 유기성 폐기물을 발효시키며, 산 발효조 및 메탄 발효조를 일체로써 구비하는 일체형 2상 혐기소화조를 포함한다. An anaerobic digestion apparatus according to the present invention for achieving the above object, the storage tank for storing the organic waste is injected; A mixing tank for mixing the organic waste conveyed from the storage tank; A solubilization tank for maintaining the temperature of the organic waste in a predetermined temperature range to improve the biodegradability of the hardly decomposable organic material in the organic waste conveyed from the mixing tank; And an integrated two-phase anaerobic digestion tank for fermenting the organic waste conveyed from the solubilization tank and having an acid fermentation tank and a methane fermentation tank as one.

바람직하게는, 상기 가용화조는 상기 유기성 폐기물의 온도를 70℃ ~ 75℃로 유지시키는 것을 특징으로 한다. Preferably, the solubilization tank is characterized in that for maintaining the temperature of the organic waste at 70 ℃ ~ 75 ℃.

또한, 상기 혐기소화조는 산 발효조 및 메탄 발효조를 일체로써 구비하는 일체형 2상 혐기소화조인 것을 특징으로 한다. In addition, the anaerobic digestion tank is characterized in that the integral two-phase anaerobic digestion tank having an acid fermentation tank and a methane fermentation tank integrally.

또한, 상기 산 발효조 및 메탄 발효조는 각각 직립 원통형 발효조로서 상기 혐기소화조 내에서 동심원을 이루는 것을 특징으로 한다. In addition, the acid fermentation tank and the methane fermentation tank is characterized in that the concentric circles in the anaerobic digestion tank respectively as an upright cylindrical fermentation tank.

본 발명에 따르면, 일체형 2상 혐기소화방식에 의해 생분해곤란 물질의 혐기 소화에 있어서, 에너지 절감 및 효율증대가 가능하고, 바이오 가스의 획득량을 증가시킬 수 있으며, 혐기소화 장치의 설치 부지를 줄임으로써 시설비를 획기적으로 감소시킬 수 있게 된다. 아울러, 일체형 2상 혐기소화방식에 의해 난분해성 유기물의 가용화율이 증가되며, 단계별 우점 미생물의 분리성장이 가능하게 된다.According to the present invention, in the anaerobic digestion of biodegradable substances by the integrated two-phase anaerobic digestion method, energy saving and efficiency can be increased, biogas acquisition can be increased, and the site for installing the anaerobic digestion apparatus can be reduced. This can drastically reduce facility costs. In addition, the solubilization rate of the hardly decomposable organic substance is increased by the integrated two-phase anaerobic digestion method, and the separate growth of the dominant microorganisms in stages is possible.

이하에서는 도면을 참조하여 본 발명을 보다 상세하게 설명한다. 도면들 중 동일한 구성요소들은 가능한 한 어느 곳에서든지 동일한 부호들로 나타내고 있음에 유의해야 한다. 또한 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다. Hereinafter, with reference to the drawings will be described the present invention in more detail. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

도 1은 본 발명에 따른 혐기소화 장치의 구성도이다. 도 1을 참조하면, 본 발명에 따른 혐기소화 장치는 저장조(110), 혼합조(120), 가용화조(130), 일체형 2상 혐기소화조(140), 가스정제장치(150), 가스저장조(160), 및 가온장치(170)를 포함한다. 1 is a block diagram of an anaerobic digestion apparatus according to the present invention. Referring to Figure 1, the anaerobic digestion apparatus according to the present invention is a storage tank 110, mixing tank 120, solubilization tank 130, integral two-phase anaerobic digestion tank 140, gas purification device 150, gas storage tank ( 160, and a heating device 170.

저장조(110)에는 투입구를 통해 투입된 함수율 78-96%인 유기성 폐기물이 저장되어 있으며, 내부에는 유기성 폐기물을 혼합조로 이송하는 폐기물 이송펌프가 구비되어 있다. The storage tank 110 stores the organic waste having a water content of 78-96% introduced through the inlet, and is provided with a waste transfer pump for transferring the organic waste to the mixing tank.

혼합조(120)는 저장조(110)로부터 이송된 다양한 유기성 폐기물을 혼합하여 일정한 부하율을 유지하게 하는 장치로써, 혼합된 유기성 폐기물을 가용화조(130)로 이송하는 폐기물 이송펌프가 구비되어 있다. The mixing tank 120 is a device for maintaining a constant load rate by mixing various organic wastes transferred from the storage tank 110, and a waste transfer pump for transferring the mixed organic wastes to the solubilization tank 130 is provided.

가용화조(130)는 혼합조(120)로부터 투입되는 유기성 폐기물의 온도를 70℃ ~ 75℃로 1시간 이내의 일정시간동안 가온유지함으로써 난분해성 유기물질의 가용화(액상화)를 유도하여 일체형 2상 혐기소화조(140)내에서의 원활한 가스로의 전이를 유도하는 기능을 수행한다. 즉, 본 발명에 따른 혐기소화 장치에서의 가용화조(130)는 유기성 폐기물 내의 난분해성 유기물질의 생분해도를 향상시키게 된다. The solubilization tank 130 maintains the temperature of the organic waste introduced from the mixing tank 120 at 70 ° C. to 75 ° C. for a predetermined time within 1 hour to induce solubilization (liquidization) of the hardly decomposable organic material. It performs a function of inducing a smooth transition to the gas in the anaerobic digestion tank 140. That is, the solubilization tank 130 in the anaerobic digestion apparatus according to the present invention improves the biodegradability of the hardly decomposable organic material in the organic waste.

한편, 일체형 2상 혐기소화조(140)는 가용화조(130)에 의해 가용화 유도된 유기물질을 1차적으로 산 발효시키고, 2차적으로 메탄 발효시킨다.On the other hand, the integrated two-phase anaerobic digester 140 acid primary fermentation of the solubilization induced organic material by the solubilization tank 130, and secondary fermentation of methane.

즉, 본 발명에서의 일체형 2상 혐기소화조(140)는 도 2에서 보는 바와 같이, 산 발효조(143) 및 메탄 발효조(145)를 일체로써 구비하며, 내통부인 산 발효조(143) 및 외통부인 메탄 발효조(145)는 각각 직립 원통형 발효조로써 일체형 2상 혐기소화조(140)내에서 동심원을 이루는 내외통으로 구성되어 있다.That is, the integrated two-phase anaerobic digester 140 in the present invention is provided with an acid fermentation tank 143 and a methane fermentation tank 145 integrally, as shown in FIG. 2, the acid fermentation tank 143 which is an inner cylinder and the methane that is an outer cylinder. Fermentation tank 145 is an upright cylindrical fermentation tank is composed of an inner and outer cylinder forming a concentric circle in the integrated two-phase anaerobic digestion tank 140, respectively.

아울러, 본 발명에 따른 일체형 2상 혐기소화조(140)는 유입관(144), 교반수단(141), 교반날개(142), 통수구(147) 및 유출구(149)를 구비하고 있으며, 유입관(144)을 통해 유기성 폐기물이 유입되어 산 발효조(143)로 유입되게 된다. In addition, the integrated two-phase anaerobic digester 140 according to the present invention is provided with an inlet pipe 144, a stirring means 141, a stirring blade 142, a water passage 147 and an outlet 149, inlet pipe Organic waste is introduced through 144 to the acid fermentation tank 143.

산 발효조(143)로 유입된 유기성 폐기물은 교반날개(142)가 부착된 교반수단(141)의 회전에 의해 교반되며, 산 발효조(143)에서의 산 발효가 완료된 유기성 폐기물은 산 발효조(143)의 하부에 구비되어 있는 통수구(147)를 통해 메탄 발효조(145)로 이동된다. 메탄 발효조(145)에서의 메탄 발효가 완료된 유기성 폐기물은 유출구(149)를 통해 외부로 배출된다. The organic waste introduced into the acid fermentation tank 143 is agitated by the rotation of the stirring means 141 to which the stirring blade 142 is attached, and the organic waste in which the acid fermentation in the acid fermentation tank 143 is completed is the acid fermentation tank 143. It is moved to the methane fermentation tank 145 through the water passage 147 provided at the bottom of the. The organic waste from which methane fermentation is completed in the methane fermentation tank 145 is discharged to the outside through the outlet 149.

본 발명에서의 산 발효조(143) 및 메탄 발효조(145)를 나누되 동시설치하는 일체형 2상 혐기소화조(140)에 의하면, 지방 등 생분해 곤란 물질에 있어서, 에너지 절감 및 효율 증대가 가능하며, 혐기소화과정에서 발생되는 바이오 가스의 획득량을 증대시킴으로써 혐기소화 과정을 최적화할 수 있게 된다. According to the integrated two-phase anaerobic digestion tank 140 in which the acid fermentation tank 143 and the methane fermentation tank 145 in the present invention are divided but installed at the same time, in biodegradable substances such as fat, energy saving and efficiency can be increased, and anaerobic By increasing the amount of biogas produced during the digestion process, the anaerobic digestion process can be optimized.

즉, 본 발명에서와 같은 가용화조(130) 및 일체형 2상 혐기소화조(140)를 구비하는 혐기소화 장치에 의하면, 함수율 78~96%인 유기성 폐기물을 가용화조(130)에서 1차 가온을 하여 생분해도를 높이고, 일체형 2상 혐기소화조(140) 내에서 일체화되어 있는 산 발효조(143) 및 메탄 발효조(145)에 단계적으로 이송함으로써, 유기성 폐기물의 액상화 공정, 산 발효 공정, 메탄 발효 공정을 순차적으로 거치면서 효율적으로 유기성폐기물 안정화를 이루면서 에너지 획득을 최대화 할 수 있게 된다.That is, according to the anaerobic digestion apparatus including the solubilization tank 130 and the integrated two-phase anaerobic digestion tank 140 as in the present invention, the organic waste having a water content of 78 to 96% is first warmed by the solubilization tank 130. By increasing the degree of biodegradation and stepwise transfer to the acid fermentation tank 143 and the methane fermentation tank 145 integrated in the integrated two-phase anaerobic digestion tank 140, the liquefaction process of the organic waste, acid fermentation process, methane fermentation process sequentially Through this process, organic waste can be stabilized efficiently while maximizing energy gain.

한편, 가스정제장치(150)는 에너지화된 바이오 가스 내의 황화수소, 멜캅탄 등 유해물질과 악취물질을 정제처리하는 기능을 수행하며, 가스저장조(160)는 가스정제장치(150)에 의해 정제처리된 바이오 가스를 가온 및 발전시설 등에 연료로 주입하기 위해 일시 저장하는 기능을 수행한다.Meanwhile, the gas purification device 150 performs a function of purifying harmful substances such as hydrogen sulfide and melcaptan and odorous substances in the energized biogas, and the gas storage tank 160 is purified by the gas purification device 150. It performs a function of temporarily storing the biogas is injected into the heating and power generation facilities as fuel.

가온장치(170)는 생산된 바이오 가스를 활용하여 일체형 2상 혐기소화조(140) 내의 온도를 중온소화온도(35℃ ~ 39℃)로 유지하기 위해 소화 내부액을 순환시켜 열교환하도록 한다. The heating device 170 circulates and heat-exchanges the digestive internal liquid in order to maintain the temperature in the integrated two-phase anaerobic digestion tank 140 using the produced biogas at a medium temperature digestion temperature (35 ° C. to 39 ° C.).

이상에서는 본 발명의 바람직한 실시예 및 응용예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예 및 응용예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 안될 것이다.While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

도 1은 본 발명에 따른 혐기소화 장치의 구성도, 및1 is a block diagram of an anaerobic digestion apparatus according to the present invention, and

도 2는 본 발명에 따른 혐기소화 장치 내의 일체형 2상 혐기소화조의 구조를 설명하는 도면이다. 2 is a view for explaining the structure of the integrated two-phase anaerobic digestion tank in the anaerobic digestion apparatus according to the present invention.

Claims (4)

투입되는 유기성 폐기물을 저장하는 저장조;A storage tank for storing the injected organic waste; 상기 저장조로부터 이송되는 유기성 폐기물을 혼합하는 혼합조;A mixing tank for mixing the organic waste conveyed from the storage tank; 상기 혼합조로부터 이송되는 유기성 폐기물 내의 난분해성 유기물질의 생분해도를 향상시키기 위해 유기성 폐기물의 온도를 소정의 온도범위로 유지시키는 가용화조; 및A solubilization tank for maintaining the temperature of the organic waste in a predetermined temperature range to improve the biodegradability of the hardly decomposable organic material in the organic waste conveyed from the mixing tank; And 상기 가용화조로부터 이송되는 유기성 폐기물을 발효시키며, 산 발효조 및 메탄 발효조를 일체로써 구비하는 일체형 2상 혐기소화조An integrated two-phase anaerobic digestion tank fermenting the organic waste conveyed from the solubilization tank and integrally equipped with an acid fermentation tank and a methane fermentation tank. 를 포함하며,Including; 상기 일체형 2상 혐기소화조는 상기 산 발효조 내부의 상기 유기성 폐기물을 교반하는 교반날개를 구비하고, 상기 산 발효조로 유입된 유기성 폐기물은 상기 교반날개가 부착된 교반수단의 회전에 의해 교반되고, The integrated two-phase anaerobic digestion tank is provided with a stirring blade for stirring the organic waste inside the acid fermentation tank, the organic waste introduced into the acid fermentation tank is stirred by the rotation of the stirring means with the stirring blade, 상기 산 발효조에서의 산 발효가 완료된 상기 유기성 폐기물은 산 발효조의 하부에 구비되어 있는 통수구를 통해 상기 메탄 발효조로 이동되며,The organic wastes in which the acid fermentation is completed in the acid fermentation tank are transferred to the methane fermentation tank through a channel provided at the bottom of the acid fermentation tank. 상기 가용화조는 상기 유기성 폐기물의 온도를 70℃ ~ 75℃로 유지시키는 것을 특징으로 하는 혐기소화 장치.The solubilization tank is anaerobic digestion apparatus characterized in that to maintain the temperature of the organic waste at 70 ℃ ~ 75 ℃. 삭제delete 제1항에 있어서,The method of claim 1, 상기 산 발효조 및 메탄 발효조는 각각 직립 원통형 발효조로서 상기 혐기소화조 내에서 동심원을 이루는 것을 특징으로 하는 혐기소화 장치.The acid fermentation tank and the methane fermentation tank is an anaerobic digestion apparatus, characterized in that the concentric circles in the anaerobic digestion tank, respectively. 외부로부터 유입된 유기성 폐기물의 산발효가 수행되는 산 발효조; 및An acid fermentation tank in which acid fermentation of organic waste introduced from the outside is performed; And 상기 산 발효조와 동심원을 이루며, 상기 산 발효조에서 산발효된 유기성 폐기물의 메탄발효가 수행되는 매탄 발효조The methane fermentation tank is concentric with the acid fermentation tank and methane fermentation of the organic waste acid fermented in the acid fermentation tank is performed. 를 포함하며, Including; 상기 산 발효조의 하부에는 상기 메탄 발효조와 연결된 통수구가 형성되어 있고,The lower portion of the acid fermentation tank is formed with a water outlet connected to the methane fermentation tank, 상기 산 발효조는 내부의 상기 유기성 폐기물을 교반하는 교반날개를 구비하며, 상기 산 발효조로 유입된 유기성 폐기물은 상기 교반날개가 부착된 교반수단의 회전에 의해 교반되고, The acid fermentation tank has a stirring blade for stirring the organic waste inside, the organic waste introduced into the acid fermentation tank is stirred by the rotation of the stirring means with the stirring blade, 상기 산 발효조에서의 산 발효가 완료된 상기 유기성 폐기물은 상기 통수구를 통해 상기 메탄 발효조로 이동되는 것인 일체형 2상 혐기소화조.The organic waste of the acid fermentation is completed in the acid fermentation tank is an integral two-phase anaerobic digestion tank is moved to the methane fermentation tank through the passage.
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KR101195844B1 (en) 2010-11-23 2012-10-30 새한환경기술(주) Bio-Gas facilities
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