CN101948874A - Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters - Google Patents
Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters Download PDFInfo
- Publication number
- CN101948874A CN101948874A CN2010102811173A CN201010281117A CN101948874A CN 101948874 A CN101948874 A CN 101948874A CN 2010102811173 A CN2010102811173 A CN 2010102811173A CN 201010281117 A CN201010281117 A CN 201010281117A CN 101948874 A CN101948874 A CN 101948874A
- Authority
- CN
- China
- Prior art keywords
- material basket
- straw
- stalk
- basket
- methane
- 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
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
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for solving the problems of direct fermentation and suspension of straw for rural household biogas digesters, which comprises the following steps: 1) preparing a material basket: using iron wires or rattan bars to weave the ellipsoidal material basket, wherein the size of meshes of the material basket is smaller than the length of the straw, and the maximum diameter of frames is smaller than the minimum diameter of a feed port; 2) loading 10kg (dry weight) of the straw in each frame; 3) loading the straw after pretreatment into the frames, and putting the frames which are well loaded with the material into the digester from the feed port, wherein the material is required to be relatively loose; and 4) putting 5-6 screen frames loaded with the straw into each digester every time by conforming to the standard of immersing the material basket in biogas slurry in each digester by 20-30cm, and the biogas slurry can be supplemented when being insufficient till achieving the requirements. The method has the following advantages: firstly, the method can well solve the problems of straw floating on liquid level, non-thorough fermentation and blockage of a material inlet and a material outlet when directly taking the straw as the fermentation raw material for the rural household biogas digesters at present; secondly, the method can eliminate the need of carrying out structural transformation on the biogas digesters which are well constructed, and lead the raw materials required for the material basket to be capable of being taken locally in the rural areas; thirdly, the method can lead the material inlet and the material outlet to be convenient, facilitate the management and be easy to popularize.
Description
Technical field
The present invention relates to the stalk marsh gas technical field, relate in particular to a kind of methane-generating pit for farm household stalk direct fermentation suspension way to solve the problem.
Background technology
China's rural area household biogas has reached 3,050 ten thousand families at present, wherein quite a few methane-generating pit is because scale down is cultured by rural households, the member of rural households structure decrease, simple feces of livestock and poultry and human excrement are difficult to satisfy the demand of biogas fermentation raw material, cause the utilising efficiency of a part of methane-generating pit lower, and the output of the annual agricultural crop straw of China estimates to reach every year hundred million tons of 6.5-7, and resource exception is abundant.Compare with other raw materials, the straw biogas utilization has that 1. stalk is widely distributed, and the raw material abundance can thoroughly solve biogas production raw material problem.2. the stalk water ratio is low, and the natural pond slag of generation is solid-state, can directly use as organic fertilizer.Natural pond liquid can be used for the moisture of next batch of fermentation material to be regulated, and does not have the discharging of natural pond liquid fully, is to meet the cleaner production process that recycling economy requires.But 3. stalk long storage, convenient transportation, advantage such as price is more cheap.
But the current domestic methane tank of promoting in the rural area is mainly at feces of livestock and poultry and human excrement, and stalk exists flowability poor with respect to feces of livestock and poultry and human excrement, the input and output material difficulty, and exist liquid level to suspend the halfway problem of fermenting.
At this problem, at present domesticly mainly solve the stalk anaerobic fermentation problem from measures such as the structure of improving biogas generating device and fermentation modes.
There is the problem that difficulty is big, the cost input is high of transforming in the device that is suitable for stalk anaerobic fermentation for the methane-generating pit for farm household of having built up; More suitable for newly-built biogas generating device.
From the mode of stalk fermentation, dried fermentation is the fermentation mode of current techniques comparative maturity, but for buried for the household biogas of subterranean rural area, the input and output material of this method is difficult to, and is not easy to management.
Therefore, existing method has certain restriction aspect the rural area household biogas direct fermentation of solution stalk.
Summary of the invention
Technical problem to be solved by this invention is at the deficiencies in the prior art, and a kind of methane-generating pit for farm household stalk direct fermentation suspension way to solve the problem is provided.
Technical solution of the present invention is as follows:
A kind of methane-generating pit for farm household stalk direct fermentation suspension way to solve the problem may further comprise the steps: the first, and the material basket is prepared, with iron wire or rattan establishment material basket; The second, each frame dress stalk amount dry weight 10kg; The 3rd, pretreated stalk to be packed in the frame, charged material basket drops into the pond from opening for feed, drops into 4-8 the material basket that stalk is housed in each pond at every turn, and described material basket sinks to methane-generating pit, natural pond liquid submergence material basket 20-30cm.
Described method is characterized in that, being shaped as of material basket is oval spherical, and maximum diameter is less than the feed inlet and outlet diameter.
Described method is characterized in that, material net eye is less than stalk length.
Described method is characterized in that, stalk passes through pre-treatment in advance.
Described method is characterized in that, more reloads basket once every 2 two months.
Described method, 6 cubic metres methane-generating pit input material basket 4-5; 8 cubic metres input material basket 5-6; 10 cubic metres input material basket 7-8.
The invention provides a kind of solution stalk with low cost, simple to operate is suspended in liquid level in biogas fermentation device problem.The present invention based on current with methane-generating pit for farm household, need not existing methane-generating pit is carried out structural transformation, just advanced some simple feeding baskets of establishment and got final product, and can not increase the use cost of peasant household by some bamboo bars, rattan and the iron wire that is easy to obtain in the rural area; The material basket because stalk is packed into has well solved the suspension problem on liquid level simultaneously; Only need tick the material basket and get final product during discharging with the hook of a feature, simple to operate, time saving and energy saving, be suitable for very much having built up buried in subterranean methane-generating pit for farm household.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
8 cubic metre the hydraulic type biomass pool commonly used with the rural area is example, directly as the raw material of biogas fermentation, solves stalk suspension problem in feed liquid with stalk.
1, select reasonable rattan of snappiness or iron wire according to local materials, establishment material basket, the mesh of material basket is less than the length of stalk.
2, the structure of material basket is two semi-round balls, is elliposoidal altogether.
3, when filling with substance is with the material hemisphere of packing into, and on another hemisphere cover, the charge amount of each material basket is 5-10kg, with iron wire two hemisphere is sewed up to get final product.
4, one 8 cubic metres methane-generating pit generally drops into 5-6 material basket according to the gas production rate and the fermentation period of stalk, promptly can satisfy the needs of 4 mouthfuls of people's of a family life with energy.
5, charged material basket is dropped into the methane-generating pit from opening for feed, require liquid level submergence material basket 20-30cm.
6, after stalk fermented 60 days in methane-generating pit, it can be pulled out by discharge port according to the aerogenesis situation.
7, the stalk after will fermenting is poured out from the material basket, checks whether the material basket has damage, continues charging, and the basket that more reloads can reuse continuously.
Embodiment 2
In 6 cubic metres methane-generating pit, drop into 4-5 material basket; All the other steps are identical with embodiment 1, repeat no more.
Embodiment 2
In with 10 cubic metres methane-generating pit, drop into 7-8 material basket; All the other steps are identical with embodiment 1, repeat no more.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (6)
1. a methane-generating pit for farm household stalk direct fermentation suspension way to solve the problem is characterized in that, may further comprise the steps: the first, and the material basket is prepared, with iron wire or rattan establishment material basket; The second, each frame dress stalk amount dry weight 10kg; The 3rd, pretreated stalk to be packed in the frame, charged material basket drops into the pond from opening for feed, drops into 4-8 the material basket that stalk is housed in each pond at every turn, and described material basket sinks to methane-generating pit, natural pond liquid submergence material basket 20-30cm.
2. method according to claim 1 is characterized in that, being shaped as of material basket is oval spherical, and maximum diameter is less than the feed inlet and outlet diameter.
3. method according to claim 1 is characterized in that, material net eye is less than stalk length.
4. method according to claim 1 is characterized in that stalk passes through pre-treatment in advance.。
5. method according to claim 1 is characterized in that, more reloads basket once every 2 two months.
6. method according to claim 1 is characterized in that, 6 cubic metres methane-generating pit input material basket 4-5; 8 cubic metres input material basket 5-6; 10 cubic metres input material basket 7-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102811173A CN101948874A (en) | 2010-09-15 | 2010-09-15 | Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102811173A CN101948874A (en) | 2010-09-15 | 2010-09-15 | Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101948874A true CN101948874A (en) | 2011-01-19 |
Family
ID=43452501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102811173A Pending CN101948874A (en) | 2010-09-15 | 2010-09-15 | Method for solving problems of direct fermentation and suspension of straw for rural household biogas digesters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101948874A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020102673A1 (en) * | 1998-08-07 | 2002-08-01 | The Regents Of The University Of California | Biogasification of solid waste with an anaerobic-phased solids-digester system |
| CN2535414Y (en) * | 2002-04-12 | 2003-02-12 | 中国农业大学 | Straw solid state fermenting alcoho reactor |
| CN101270331A (en) * | 2008-05-04 | 2008-09-24 | 周升阳 | Non-pressure biogas generating pit |
| CN101423795A (en) * | 2007-11-02 | 2009-05-06 | 黄世明 | Overlap-combination structure of decomposition pool and biomass pool |
| CN101775411A (en) * | 2009-01-14 | 2010-07-14 | 房苏清 | Technology for producing methane by bagged straw |
-
2010
- 2010-09-15 CN CN2010102811173A patent/CN101948874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020102673A1 (en) * | 1998-08-07 | 2002-08-01 | The Regents Of The University Of California | Biogasification of solid waste with an anaerobic-phased solids-digester system |
| CN2535414Y (en) * | 2002-04-12 | 2003-02-12 | 中国农业大学 | Straw solid state fermenting alcoho reactor |
| CN101423795A (en) * | 2007-11-02 | 2009-05-06 | 黄世明 | Overlap-combination structure of decomposition pool and biomass pool |
| CN101270331A (en) * | 2008-05-04 | 2008-09-24 | 周升阳 | Non-pressure biogas generating pit |
| CN101775411A (en) * | 2009-01-14 | 2010-07-14 | 房苏清 | Technology for producing methane by bagged straw |
Non-Patent Citations (3)
| Title |
|---|
| 《中国沼气》 20040628 熊承永等 户用沼气池的秸秆利用新方法 第22卷, 第02期 * |
| 姜森林: "新建沼气池发酵原料配比及快速启动技术", 《农业技术与装备》, no. 20, 28 October 2009 (2009-10-28) * |
| 郑雷: "关于新建沼气池原料配比及快速启动技术的几项要点", 《农业工程技术(新能源产业)》, no. 04, 25 April 2010 (2010-04-25) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Murphy et al. | Biogas from crop digestion | |
| CN106220262B (en) | A kind of method of digestion process fowl and animal excrement and stalk | |
| CN102851318B (en) | Resource utilization method for combined production of biogas and cultivation matrix through utilizing tobacco stalk fermentation | |
| CN103601182B (en) | Preparation method of straw anaerobic fermentation residue active carbon for processing cadmium-containing waste water | |
| CN103088070A (en) | Method for producing biogas by combined solid state fermentation of crop straws and excrements of livestocks | |
| CN103898164B (en) | Method for improving biogas yield and producing composite function organic fertilizer | |
| CN104762201A (en) | CSTR fermentation device-based methane recycling system | |
| CN102092913A (en) | Process for improving mesophilic anaerobic digestion effect by mixed fermentation of sludge and maize straws | |
| CN102674651A (en) | Feces treatment system and feces treatment method with methane project as link | |
| CN112744991A (en) | Method for producing biogas through high-load anaerobic fermentation by fully-quantitatively collecting breeding manure | |
| CN102492728B (en) | Rancidity-prone waste biogas utilization method based on in-subarea inoculation and quick start | |
| CN106434765A (en) | Straw biogas pretreatment method by yellow corn silage | |
| CN101497893A (en) | Pure stalk fermentation biogas preparation process and apparatus based on composite strain degradation | |
| CN101717792A (en) | Method for preparing biomass energy with water hyacinth and water lettuce | |
| CN103588374A (en) | Method for recycling pig manure soaking in biogas slurry to prepare methane and using pig manure comprehensively | |
| CN201411454Y (en) | Reflux type anaerobic digestor for producing marsh gas by utilizing straws | |
| CN101928730A (en) | Pretreatment method for straw biogas utilization | |
| CN104878045A (en) | Method for producing methane through two-phase mixing anaerobic fermentation of steam-exploded straw and cow dung | |
| CN203613189U (en) | Multiple material anaerobic dry fermentation system using straw as main raw material | |
| CN101696426A (en) | Composite material of marsh gas and method for preparing same | |
| CN201933083U (en) | Forage aerobic acidizing biogas tank | |
| CN105755056A (en) | Method for generating methane jointly through bundled straw and livestock and poultry manure | |
| CN204661706U (en) | Based on the Methane Resources treatment system of CSTR fermentation unit | |
| CN204125315U (en) | A kind of plant biogas fermentation device | |
| CN208562367U (en) | Mixed material high concentration anaerobic reactor by different level |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110119 |