JPH01159100A - Methane fermentation treatment of organic waste - Google Patents
Methane fermentation treatment of organic wasteInfo
- Publication number
- JPH01159100A JPH01159100A JP62319766A JP31976687A JPH01159100A JP H01159100 A JPH01159100 A JP H01159100A JP 62319766 A JP62319766 A JP 62319766A JP 31976687 A JP31976687 A JP 31976687A JP H01159100 A JPH01159100 A JP H01159100A
- Authority
- JP
- Japan
- Prior art keywords
- methane fermentation
- nitrogen
- org
- plant
- carbon
- 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 54
- 238000000855 fermentation Methods 0.000 title claims abstract description 29
- 230000004151 fermentation Effects 0.000 title claims abstract description 29
- 239000010815 organic waste Substances 0.000 title claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 9
- 230000001079 digestive effect Effects 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 5
- 235000005985 organic acids Nutrition 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 244000144972 livestock Species 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000012258 culturing Methods 0.000 abstract description 2
- -1 livestock waste Chemical compound 0.000 abstract description 2
- 230000029087 digestion Effects 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 1
- 238000002309 gasification Methods 0.000 abstract 1
- 230000003381 solubilizing effect Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000010802 sludge Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000169203 Eichhornia Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000852 hydrogen donor Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000002904 solvent Substances 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〕
本発明は畜産廃莱物等、窒素を多量に含む有機系廃棄物
のメタン発酵処理法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for methane fermentation treatment of organic waste containing a large amount of nitrogen, such as livestock waste.
１）従来メタン発酵法で畜産廃棄物等、窒素を多量に含
む有機系廃棄物を処理する場合、炭素／窒素比が低下す
ることによって、ガス発生量が低下する問題がある（第
２図参照）。1) When using the conventional methane fermentation method to treat organic waste containing a large amount of nitrogen, such as livestock waste, there is a problem that the amount of gas generated decreases due to a decrease in the carbon/nitrogen ratio (see Figure 2). ).
２）一方メタン発酵後の消化液も、原料中のＢＯＤ成分
のみがガス化され、窒素分は汚泥への転換分を除いてほ
とんど除去されないため、ＢＯＤ濃度に対して非常に窒
素濃度が高い排水となる。2) On the other hand, in the digestive fluid after methane fermentation, only the BOD component in the raw material is gasified, and almost no nitrogen is removed except for the amount converted to sludge, resulting in wastewater with a very high nitrogen concentration compared to the BOD concentration. becomes.
８）現在、水素の汚濁防止の観点から窒素に対しては１
強い排出規制が今後実施される動向にあり、排水の放流
にあたっては高度の脱窒素処理が不可欠となっている。8) Currently, from the perspective of hydrogen pollution prevention, nitrogen is
There is a trend toward stricter emission regulations being implemented in the future, and advanced denitrification treatment is essential when discharging wastewater.
４）実用化されている窒素処理方法としてもっとも確実
かつ使用されている技術は生物学的硝化脱窒法であるが
、この方法で脱窒素を行う場合、水素供与源としてＢＯ
Ｄ成分あるいはメタノール等が必要であり、とくにＢＯ
Ｄが少なく窒素濃度が高い排水を処理する場合には、硝
化に要する多大な曝気動力に加えて。4) The most reliable and used technology for nitrogen treatment in practical use is biological nitrification and denitrification, but when performing denitrification using this method, BO is used as the hydrogen donor source.
Component D or methanol is required, especially BO
When treating wastewater with low D content and high nitrogen concentration, in addition to the large amount of aeration power required for nitrification.
脱窒工程で多量のメタノールが必要となる。A large amount of methanol is required in the denitrification process.
本発明は前述のとおり、ガス発生率が悪く。 As mentioned above, the gas generation rate of the present invention is poor.
かつ発生する消化液の処理に多大なエネルギーと薬品を
必要とする。窒素を多量に含む有機系廃棄物のメタン発
酵処理において、ガス発生量を増加させ、加えて最終的
に処理が必要となる消化液中の窒素量を低減させる方法
について提案するものである。In addition, a large amount of energy and chemicals are required to process the digestive juices generated. This paper proposes a method for increasing the amount of gas generated in the methane fermentation treatment of organic waste containing a large amount of nitrogen, as well as reducing the amount of nitrogen in the digestive fluid that ultimately needs to be treated.
〔問題点を解決するための手段及び作用〕１）メタン発
酵消化液で水生植物を培養し、植物の炭酸同化作用を利
用して空気中の炭酸ガスを植物体を通してメタン発酵の
原料物に添加し、炭素／窒素比の増加すなわち発生ガス
量の増加を図る。[Means and actions for solving the problem] 1) Cultivating aquatic plants with methane fermentation digestive fluid, and adding carbon dioxide gas from the air to the raw material for methane fermentation through the plant body using the carbon assimilation effect of the plants. The aim is to increase the carbon/nitrogen ratio, that is, increase the amount of gas generated.
２）培養された植物を酸発酵させることによって、植物
体中の炭素源を効率よく分離しメタン発酵に添加するこ
とによって炭素／窒素比率の改善効率を高めるとともに
、その他の部分を別途乾燥焼却あるいはコンポスト化す
ることによって水系から窒素量を分離し、水系の脱窒素
処理の負荷低減を行う。2) By subjecting the cultured plants to acid fermentation, the carbon source in the plant body is efficiently separated and added to the methane fermentation, increasing the efficiency of improving the carbon/nitrogen ratio. Composting separates the amount of nitrogen from the water system, reducing the burden of denitrification processing on the water system.
〔実施例〕
第１図は本発明の一実施例を示したものである。窒素を
多量に含む有機系廃棄物は混合装置１に投入されここで
炭素分に富む有機酸が分離装置７から供給され、炭素／
窒素比の調整および必要に応じて流動性を維持する為に
必要な補給水あるいは雑排水が添加される。[Embodiment] FIG. 1 shows an embodiment of the present invention. Organic waste containing a large amount of nitrogen is fed into a mixing device 1, where a carbon-rich organic acid is supplied from a separator 7, and carbon/
Make-up water or gray water is added as needed to adjust the nitrogen ratio and maintain fluidity as needed.
調整の終った原料は、メタン発酵装置２に投入され、こ
こでメタン発酵により有機物のガス化がおこなわれる。The adjusted raw material is put into the methane fermentation device 2, where the organic matter is gasified by methane fermentation.
なお、メタン発酵装置については一相式あるいは可溶化
工程を組込んだ二相式のいずれも適用可能である。メタ
ン発酵後の消化液は、水性植物培養装置３に流入し、こ
こで太陽光を利用した植物体の培養、すなわち空気中の
炭酸ガスの固定および窒素の吸収が行われる。植物体の
培養は浮遊水生植物（ウォータヒヤシンスｅｔｃ）、着
床式水生植物（ウキイネｅｔｃ）、等の他、礫耕栽培法
で生育可能な植物等を対象とすることができ、これらの
植物体の収穫については各培養方法に応じて公知の手段
を適用することが可能である。As for the methane fermentation apparatus, either a one-phase type or a two-phase type incorporating a solubilization process can be applied. The digestive fluid after methane fermentation flows into the aqueous plant culturing device 3, where plant cultivation using sunlight, that is, fixation of carbon dioxide gas and absorption of nitrogen in the air, is performed. In addition to floating aquatic plants (water hyacinths, etc.), settled aquatic plants (water hyacinths, etc.), plants that can be grown using the gravel cultivation method can be cultivated. For harvesting, it is possible to apply known means depending on each culture method.
培養装置３から収穫された植物体は破砕装置５に送られ
２通性域での加水分解酸発酵が生じやすい粒度に破砕が
行われる。The plants harvested from the culture device 3 are sent to the crusher 5 and are crushed to a particle size that facilitates hydrolytic acid fermentation in the bifacult region.
破砕後の植物体は可溶化装置６に送られここでｔ１１１
体物のおもに炭水化物を主体とする有機物は有機酸に分
解される。The crushed plant body is sent to the solubilizer 6, where it is treated at t111.
Organic substances, mainly carbohydrates, in the body are decomposed into organic acids.
有機酸を含む可溶化された植物体は分離装置７へ送られ
ここで有機酸主体の液成分と、その他の部分とに分離さ
れ、液成分は混合装置１に ４送られ、メタン発酵の原
料有機物に添加される。The solubilized plant matter containing organic acids is sent to a separation device 7, where it is separated into a liquid component consisting mainly of organic acids and other parts, and the liquid component is sent to a mixing device 14, where it is used as a raw material for methane fermentation. Added to organic matter.
この分離操作については圧搾脱水形の脱水機を使用する
ことが適当である。For this separation operation, it is appropriate to use a press dehydrator.
脱水後の残渣は別途乾燥焼却装置９等で水系と分離した
状態で処理されるが、必要に応じてメタン発酵装置２．
脱窒素装置４から発生する汚泥とともに汚泥処理装置８
としてコンポスト処理することも可能である。The residue after dehydration is treated separately from the aqueous system in a drying and incineration device 9, etc., but if necessary, it can be treated in a methane fermentation device 2.
Sludge treatment device 8 along with sludge generated from denitrification device 4
It is also possible to compost the waste.
水生植物培養装置３で処理された消化液は脱窒素装置４
で最終的な処理が行われ処理水として放流される。Digestive fluid treated in the aquatic plant cultivation device 3 is denitrified by the denitrification device 4.
The final treatment is carried out in the water and the water is discharged as treated water.
１）メタン発酵処理におけるガス発生率の増加。 1) Increase in gas generation rate during methane fermentation treatment.
すなわち、プロセスエネルギー効率の改善を図ることが
できる。That is, it is possible to improve process energy efficiency.
２）後段水処理とくに生物学的硝化、脱窒素における負
荷低減およびランニングコストノ低減を達成できる。2) It is possible to achieve a reduction in load and running cost in post-stage water treatment, especially biological nitrification and denitrification.
第１図は本発明の一実施例を示すフロー図。
第２図はメタン発酵原料中のＯ／Ｎ比とガス発生量の関
係を示す線図である。FIG. 1 is a flow diagram showing one embodiment of the present invention. FIG. 2 is a diagram showing the relationship between the O/N ratio in the raw material for methane fermentation and the amount of gas generated.
Claims (1)
ンガスを回収するに際し、メタン発酵後の消化液で水生
植物を培養し、生育した植物を通性域で酸発酵させたの
ち有機酸に富む液成分を分離し、分離物をメタン発酵処
理物に混合することによって炭素／窒素比を調整し、液
成分以外のその他の部分は別途処理することを特徴とす
る有機系廃棄物のメタン発酵処理法。When recovering methane gas from organic waste containing a large amount of nitrogen using the methane fermentation method, aquatic plants are cultured using the digestive fluid after methane fermentation, and the grown plants are acid-fermented in a facultative zone to become rich in organic acids. Methane fermentation treatment of organic waste characterized by separating the liquid component and adjusting the carbon/nitrogen ratio by mixing the separated product with the methane fermentation product, and treating other parts other than the liquid component separately. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62319766A JPH01159100A (en) | 1987-12-17 | 1987-12-17 | Methane fermentation treatment of organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62319766A JPH01159100A (en) | 1987-12-17 | 1987-12-17 | Methane fermentation treatment of organic waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159100A true JPH01159100A (en) | 1989-06-22 |
Family
ID=18113943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62319766A Pending JPH01159100A (en) | 1987-12-17 | 1987-12-17 | Methane fermentation treatment of organic waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006167705A (en) * | 2004-11-22 | 2006-06-29 | Tsukishima Kikai Co Ltd | Biomass treatment method in sewage treatment plant |
-
1987
- 1987-12-17 JP JP62319766A patent/JPH01159100A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006167705A (en) * | 2004-11-22 | 2006-06-29 | Tsukishima Kikai Co Ltd | Biomass treatment method in sewage treatment plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4022665A (en) | Two phase anaerobic digestion | |
| US4318993A (en) | Two phase anaerobic digester system | |
| US4134830A (en) | Method of purifying waste water | |
| MXPA04009789A (en) | Methods and apparatus for treating animal manure. | |
| KR101565503B1 (en) | Method for Liquid Fertilizer of livestock excretions using the Selective aeration | |
| CN111793656A (en) | Treatment method of agricultural organic waste | |
| KR20230128330A (en) | Methods of producing medium chain fatty acids | |
| JP2006280362A (en) | System for treating biomass | |
| JP4543504B2 (en) | Dry methane fermentation method for organic waste | |
| KR101033618B1 (en) | Apparatus for recycling of organic waste | |
| KR100311987B1 (en) | Combined treatment method for treating garbage and sludge in sewage | |
| CN107399891B (en) | Livestock and poultry manure recycling process and method | |
| JP3676952B2 (en) | Resource recovery from organic waste | |
| JPH01159100A (en) | Methane fermentation treatment of organic waste | |
| JP3970163B2 (en) | Organic waste treatment method and apparatus | |
| JP3745978B2 (en) | Method and apparatus for mixing and recycling food waste and wood waste | |
| KR19990007534A (en) | Combined treatment of food waste and sewage sludge | |
| JP2511326B2 (en) | Method for treating organic wastewater with photosynthetic microorganisms | |
| JP2000263018A (en) | Treatment apparatus for organic waste | |
| CN112547758A (en) | Combined process for harmlessly treating vegetable leaf/fruit and vegetable garbage and recycling | |
| JP2002316130A (en) | Method and apparatus for treating organic solid waste | |
| Viswanath et al. | Anaerobic digestion of silk industry wastes | |
| JPS59109296A (en) | Anaerobic digestion treatment | |
| JP2004298688A (en) | Method for treating organic waste, biogas system and method for producing methane fermentation residual liquid concentrate | |
| JP3800990B2 (en) | Anaerobic digestion method and apparatus of organic sludge |