JPS618200A - Methane fermentation method - Google Patents
Methane fermentation methodInfo
- Publication number
- JPS618200A JPS618200A JP59128666A JP12866684A JPS618200A JP S618200 A JPS618200 A JP S618200A JP 59128666 A JP59128666 A JP 59128666A JP 12866684 A JP12866684 A JP 12866684A JP S618200 A JPS618200 A JP S618200A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- tank
- methane
- gas
- methane fermentation
- 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.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000000855 fermentation Methods 0.000 title claims abstract description 28
- 230000004151 fermentation Effects 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 32
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 15
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 4
- 229930195729 fatty acid Natural products 0.000 claims abstract description 4
- 239000000194 fatty acid Substances 0.000 claims abstract description 4
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000005416 organic matter Substances 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 14
- 241000894006 Bacteria Species 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 235000005985 organic acids Nutrition 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000696 methanogenic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、メタン醗酵に関与ザる微生物群のうち酸生
成菌とメタン生成菌とを分離し、これらをそれぞれ至適
条件で培養し、酸生成過程において酸生成菌の働きによ
り有機物を分解して低級脂肪酸を得、メタン生成過程に
おいてメタン生成菌の働きにより酸を分解してメタンと
二酸化炭素を得る方法（以下、二相式メタン醗酵法とい
う）に関するものであり、さらに詳しくは、酸生成過程
における水素の発生を可及的に抑えて、つぎのガス生成
過程におけるメタン収率を向上せしめる方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is aimed at separating acid-producing bacteria and methanogenic bacteria from among the microorganisms involved in methane fermentation, culturing them under optimal conditions, and producing acid-producing bacteria. In the process, organic matter is decomposed by the action of acid-producing bacteria to obtain lower fatty acids, and in the methane production process, the acid is decomposed by the action of methanogen-producing bacteria to obtain methane and carbon dioxide (hereinafter referred to as the two-phase methane fermentation method). ), and more specifically, it relates to a method of suppressing the generation of hydrogen during the acid production process as much as possible to improve the methane yield in the next gas production process.
従来技術
メタン醗酵は廃液処理と同時にメタンを回収することの
できるすぐれたエネルギー生産方法である。従来、メタ
ン醗酵は、上記のような微生物の分離を行なわないで醗
酵を行なう方法（以下、単相式メタン醗酵法という）に
よりなされてきたが、この場合醗酵に長時間を要し、大
容量の醗酵槽を必要とするといった欠点があった。BACKGROUND OF THE INVENTION Methane fermentation is an excellent energy production method that can recover methane at the same time as wastewater treatment. Conventionally, methane fermentation has been carried out using the method described above in which fermentation is carried out without separating microorganisms (hereinafter referred to as single-phase methane fermentation method), but in this case, fermentation takes a long time and requires a large capacity. The disadvantage was that it required a fermentation tank.
他方、二相式メタンｌｌ１ａ酵法では、酸生成過程にお
いて酸生成菌の働きによって有機物が分解されて、酢酸
、プロピオン酸、酪酸のような有機酸が生成せられると
ともに、さらにプロピオン酸や酪酸などのような比較的
高分子量の有機酸が水素生成菌の働きによって酢酸に分
解され、水素を発生する。しかしこうして発生した水素
は、つぎのガス生成過程におけるメタン収率を低下させ
るため、水素の発生を抑えることが要望せられている。On the other hand, in the two-phase methane ll1a fermentation method, organic matter is decomposed by the action of acid-producing bacteria during the acid production process, producing organic acids such as acetic acid, propionic acid, and butyric acid, and further producing organic acids such as propionic acid and butyric acid. Relatively high molecular weight organic acids such as are decomposed into acetic acid by the action of hydrogen-producing bacteria, generating hydrogen. However, since the hydrogen generated in this way lowers the methane yield in the next gas generation process, it is desired to suppress the generation of hydrogen.
そして従来からこの要望にこたえるべく種々の水素発生
抑制手段が検討されてきたが、未だ満足な成果を挙げる
に至っていないのが実情である。In order to meet this demand, various means for suppressing hydrogen generation have been studied, but the reality is that no satisfactory results have been achieved yet.
発明の目的
この発明は、上記のような実情に鑑みてなされたもので
あって、ガス生成過程におけるメタン収率を大幅に向上
せしめることのできる二相式メタン醗酵法を提供するこ
とを目的とする。Purpose of the Invention The present invention was made in view of the above-mentioned circumstances, and an object thereof is to provide a two-phase methane fermentation method that can significantly improve the methane yield in the gas generation process. do.
発明の構成
この発明は、有機物を分解して低級脂肪酸を得る酸生成
過程と、得られた酸を分解してメタンｌと二酸化炭素を
得るガス生成過程とよりなるメタン醗酵において、酸生
成過程で発生した水素をガス生成過程へ導くことを特徴
とするメタン醗酵法である。Structure of the Invention The present invention is directed to a methane fermentation process consisting of an acid generation process in which organic matter is decomposed to obtain lower fatty acids, and a gas generation process in which the resulting acid is decomposed to obtain methane and carbon dioxide. This is a methane fermentation method characterized by introducing the generated hydrogen into a gas production process.
酸生成過程における酸生成槽は完全混合型の撹拌槽であ
る。同過程に供給される有機物含有原料液としては、ア
ルコール蒸留廃液、下水処理汚泥、農産加工廃棄物、都
市ごみ、海藻等の有機系廃液が用いられる。The acid generation tank in the acid generation process is a complete mixing type stirring tank. Organic waste liquids such as alcohol distillation waste liquid, sewage treatment sludge, agricultural processing waste, municipal waste, and seaweed are used as the organic substance-containing raw material liquid supplied to the process.
実施例１
はじめに、二相式メタン醗酵装置の構成について説明す
る。原料液槽（１）は冷却水槽（２）内に配置され、冷
却によって廃水その他の原料液の腐敗を防ぐようになっ
ている。原料液槽（１）の後流側に設置された酸生成槽
（３）は実容積１１を有し、撹拌器（１２）を備え、か
つ醗酵温度およびｌ）Ｈの制御表示装置（１３）を有し
ている。酸生成槽（３）の後流側に設置されたガス生成
槽（４）は、実容積０．７／を有し、ガラス製流動層を
内装し、やはり槽内温度および１）Ｈの表示装置（１４
）を有している。また同種（４）のジャケットに温水を
通すことにより槽内温度を制御することができ、酸ない
しアルカリの添加により槽内ｐＨを制御することができ
る。酸生成槽（３）とガス生成槽（４）の間に設置され
た沈降槽（５）は、酸生成反応液の受槽であって、その
ジャケットに水を通すことにより冷却できるようになっ
ている。酸生成槽（３）゛の頂部からガス生成槽（４）
の底部に、ポンプ（１５）を有するガス導管（１６）が
設けられている。Example 1 First, the configuration of a two-phase methane fermentation apparatus will be explained. The raw material liquid tank (1) is arranged in a cooling water tank (2), and cooling prevents wastewater and other raw material liquids from spoiling. The acid generation tank (3) installed on the downstream side of the raw material liquid tank (1) has an actual volume of 11, is equipped with a stirrer (12), and is equipped with a control display device (13) for fermentation temperature and l)H. have. The gas generation tank (4) installed on the downstream side of the acid generation tank (3) has an actual volume of 0.7/cm, is equipped with a glass fluidized bed, and also displays the temperature inside the tank and 1) H. Equipment (14
)have. Furthermore, the temperature inside the tank can be controlled by passing hot water through the jacket of the same type (4), and the pH inside the tank can be controlled by adding acid or alkali. The sedimentation tank (5) installed between the acid production tank (3) and the gas production tank (4) is a receiving tank for the acid production reaction liquid, and can be cooled by passing water through its jacket. There is. Gas generation tank (4) from the top of acid generation tank (3)
A gas conduit (16) with a pump (15) is provided at the bottom.
有機物含有原料液として廃糖蜜２８０Ｇ／ｌと！尿素１
．４０／／よりなる培地でアルコール蒸留廃液を行なっ
た後アルコールを留去して残った蒸留廃液を用いた。280G/l of blackstrap molasses as raw material liquid containing organic matter! Urea 1
．． After the alcohol distillation waste liquid was prepared using a medium consisting of 40//, the alcohol was distilled off and the remaining distillation waste liquid was used.
上記構成の醗酵装置において、上記蒸留廃液を原料液槽
（１）に貯え、ついでこれをポンプ（６）によって酸生
成槽（３）に供給し、同種（３）の反応液をポンプ（７
）で吸引して沈降槽（５）に送った。また沈降槽（５）
の上澄液をポンプ（８）でガス生成槽（４）の底部に導
き、頂部が出た液をポンプ（９）によって底部から槽内
に循環させた。そして酸生成槽における有機物負荷を１
０００／／・日に設定し、醗酵温度を３７℃に制御し、
メタン醗酵を行ない、酸生成槽（３）およびガス生成槽
（４）で発生するガスの吊を、それぞれ湿式ガスメータ
（１０）（１１）で測定した。また非測定時にガス導管
（１６）のポンプ（１５）を作動させ、酸生成槽（３）
で発生した水素含有ガスをガス生成槽（４）に底部から
導入させた。また上記水素含有ガスの導入を行なわない
場合についても上記と同じ操作を行なっ、た。これらの
場合の各ガスの測定値を表１にまとめて示す。In the fermentation apparatus configured as described above, the distillation waste liquid is stored in the raw material liquid tank (1), and then it is supplied to the acid generation tank (3) by the pump (6), and the reaction liquid of the same type (3) is pumped (7).
) and sent to the sedimentation tank (5). Also settling tank (5)
The supernatant liquid was led to the bottom of the gas generation tank (4) by a pump (8), and the liquid coming out from the top was circulated from the bottom into the tank by a pump (9). Then, the organic matter load in the acid generation tank was reduced to 1
000//day, and the fermentation temperature was controlled at 37°C.
Methane fermentation was carried out, and the amount of gas generated in the acid production tank (3) and gas production tank (4) was measured using wet gas meters (10) and (11), respectively. Also, when not measuring, the pump (15) of the gas pipe (16) is operated, and the acid generation tank (3)
The hydrogen-containing gas generated was introduced into the gas generation tank (4) from the bottom. The same operation as above was also carried out in the case where the hydrogen-containing gas was not introduced. The measured values of each gas in these cases are summarized in Table 1.
（以下余白）
表 １
比較例
酸生成槽（３）と同一タイプの撹拌槽を用いて、醗酵温
度３７℃で従来法である単相式メタン醗酵法を実施した
。(Margins below) Table 1 Comparative Example A conventional single-phase methane fermentation method was carried out at a fermentation temperature of 37° C. using the same type of stirring tank as the acid production tank (3).
有機物負荷を実施例１の場合の約１／１０である２、２
Ｑ／ｌ・日に設定したところ、ガス生成速度は１．２１
／ｌ・日であり、生成ガスのメタン含量は６０〜６５％
であった。したがって有機物１ｇ当りのメタン発生量は
０．３３〜０．３６１であった。The organic matter load was about 1/10 of that in Example 1.
When set to Q/l/day, the gas generation rate is 1.21
/l day, and the methane content of the produced gas is 60-65%.
Met. Therefore, the amount of methane generated per gram of organic matter was 0.33 to 0.361.
実施例の表１に示す測定結果および比較例の測定結果か
ら明らかなように、酸生成槽で発生した水素含有ガスを
ガス発生槽へ導かない場合は、有機物１ｇ当りのメタン
発生量は０．２８１にすぎず、単相式メタン醗酵法の場
合のメタン発生量より劣るが、上記水素含有ガスをガス
発生槽へ導くと、メタン発生量は０．３７／となり、単
相式メタン醗酵法の場合と遜色ないものとなる。また実
施例の場合の有機物負荷を比較例の場合の有機物負荷の
約１０倍人きくするこ１とができる。As is clear from the measurement results shown in Table 1 of Examples and the measurement results of Comparative Examples, when the hydrogen-containing gas generated in the acid generation tank is not led to the gas generation tank, the amount of methane generated per gram of organic matter is 0. The amount of methane generated is only 281, which is inferior to the amount of methane generated in the single-phase methane fermentation method, but when the above hydrogen-containing gas is led to the gas generation tank, the amount of methane generated is 0.37/, which is lower than the amount of methane generated in the single-phase methane fermentation method. It will be comparable to the case. In addition, the organic matter load in the example can be made about 10 times greater than the organic matter load in the comparative example.
発明の効果
以上の次第で、この発明によるメタン醗酵法によれば、
酸生成過程で発生した水素をガス生成過程へ導くので、
ガス生成過程にお【ノるメタン収率を大幅に向上させる
ことができる。Depending on more than the effects of the invention, the methane fermentation method according to the present invention:
Since the hydrogen generated during the acid generation process is guided to the gas generation process,
It can significantly improve the methane yield during the gas production process.
図面は二相式メタン醗酵装置の概略図である。
（１）・・・原料液槽、（３）・・・酸生成槽、（４）
・・・ガス生成槽、（５）・・・沈降槽、（１６）・・
・ガス導管。
以 上The drawing is a schematic diagram of a two-phase methane fermentation apparatus. (1)... Raw material liquid tank, (3)... Acid generation tank, (4)
...Gas generation tank, (5)...Sedimentation tank, (16)...
・Gas conduit. that's all
Claims (1)
、得られた酸を分解してメタンと二酸化炭素を得るガス
生成過程とよりなるメタン醗酵において、酸生成過程で
発生した水素をガス生成過程へ導くことを特徴とするメ
タン醗酵法。(1) In methane fermentation, which consists of an acid generation process that decomposes organic matter to obtain lower fatty acids, and a gas generation process that decomposes the resulting acid to produce methane and carbon dioxide, the hydrogen generated during the acid generation process is A methane fermentation method characterized by leading to the production process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59128666A JPS618200A (en) | 1984-06-21 | 1984-06-21 | Methane fermentation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59128666A JPS618200A (en) | 1984-06-21 | 1984-06-21 | Methane fermentation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS618200A true JPS618200A (en) | 1986-01-14 |
Family
ID=14990435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59128666A Pending JPS618200A (en) | 1984-06-21 | 1984-06-21 | Methane fermentation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618200A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245443A (en) * | 2004-02-05 | 2005-09-15 | Tokyo Gas Co Ltd | Method for producing methane, method for treating sea weed, apparatus for producing methane and apparatus for treating sea weed |
| JP2013126665A (en) * | 2013-02-21 | 2013-06-27 | Swing Corp | Apparatus and method for treating organic wastewater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56108593A (en) * | 1980-01-31 | 1981-08-28 | Matsushita Electric Works Ltd | Methane fermentation apparatus |
-
1984
- 1984-06-21 JP JP59128666A patent/JPS618200A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56108593A (en) * | 1980-01-31 | 1981-08-28 | Matsushita Electric Works Ltd | Methane fermentation apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245443A (en) * | 2004-02-05 | 2005-09-15 | Tokyo Gas Co Ltd | Method for producing methane, method for treating sea weed, apparatus for producing methane and apparatus for treating sea weed |
| JP2013126665A (en) * | 2013-02-21 | 2013-06-27 | Swing Corp | Apparatus and method for treating organic wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mizuno et al. | Enhancement of hydrogen production from glucose by nitrogen gas sparging | |
| Singhania et al. | Biological upgrading of volatile fatty acids, key intermediates for the valorization of biowaste through dark anaerobic fermentation | |
| JP2016532441A (en) | Method and system for producing hydrogen, methane, volatile fatty acids, and alcohols from organic matter | |
| CA2926577A1 (en) | Biohydrogen production method and reactor | |
| JPS59120297A (en) | Method and apparatus for continuous anaerobic decomposition of organic compound | |
| Pol et al. | Cultivation of well adapted pelletized methanogenic sludge | |
| JPS618200A (en) | Methane fermentation method | |
| JPS6291293A (en) | Treatment of waste water based on anaerobic treatment | |
| Reis et al. | Sulfate reduction in acidogenic phase anaerobic digestion | |
| JPH0218915B2 (en) | ||
| US4687668A (en) | Continuous microbiological production of acetic acid and vinegar | |
| JPH0538499A (en) | Treatment of waste water in production of beet sugar | |
| KR950008042B1 (en) | Methane fermentation method | |
| KR20050105302A (en) | Treatment method of petro-chemical wastewater comprising terephthalic acid | |
| US5418166A (en) | Process and device for the biological treatment of effluents from wine cellars | |
| JPS618199A (en) | Methane fermentation method | |
| JP2001149983A (en) | Bio gas generator | |
| Edwards et al. | Continuous culture of Pseudomonas fluorescens with sodium maleate as a carbon source | |
| CN218860712U (en) | Anaerobic fermentation system | |
| CN202643681U (en) | System for producing organic alcohol through gas-phase substrate fermentation | |
| JPH0231898A (en) | Method for anaerobically digesting sewage sludge | |
| Madamwar et al. | Effect of mixture of surfactants and adsorbents on anaerobic digestion of water hyacinth-cattle dung | |
| JP2008080336A (en) | Method and apparatus for generating biogas | |
| Karekar | Investigating the use of selected homoacetogens: a unique bacterial group capable of fixing carbon dioxide into acetic acid with hydrogen as an electron donor | |
| Bhadra et al. | Methanogenesis from volatile fatty acids in downflow stationary fixed‐film reactor |