CN104961508A - Process for organically utilizing and treating residues in septic tanks - Google Patents
Process for organically utilizing and treating residues in septic tanks Download PDFInfo
- Publication number
- CN104961508A CN104961508A CN201510344391.3A CN201510344391A CN104961508A CN 104961508 A CN104961508 A CN 104961508A CN 201510344391 A CN201510344391 A CN 201510344391A CN 104961508 A CN104961508 A CN 104961508A
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- Prior art keywords
- septic tank
- waste residue
- tank waste
- fermentation
- organises
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- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 67
- 238000000855 fermentation Methods 0.000 claims description 48
- 239000003895 organic fertilizer Substances 0.000 claims description 37
- 230000004151 fermentation Effects 0.000 claims description 34
- 241000894006 Bacteria Species 0.000 claims description 33
- 239000006041 probiotic Substances 0.000 claims description 27
- 235000018291 probiotics Nutrition 0.000 claims description 27
- 230000000529 probiotic effect Effects 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 16
- 230000000050 nutritive effect Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 11
- 230000003179 granulation Effects 0.000 claims description 11
- 238000010564 aerobic fermentation Methods 0.000 claims description 10
- 239000004615 ingredient Substances 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 18
- 239000003337 fertilizer Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 7
- 235000008935 nutritious Nutrition 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000001580 bacterial effect Effects 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004575 stone 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
Landscapes
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a process for organically utilizing and treating residues in septic tanks. The process includes fermenting the residues in the septic tanks; separating solid and liquid in the fermented residues in the septic tanks from one each other; screening, drying and granulating the solid separated from the liquid to obtain biological-organic fertilizers. The process for organically utilizing and treating the residues in the septic tanks has the advantages that the biological-organic fertilizers can be manufactured from the residues in the septic tanks, excrement can be prevented from polluting living environments and is converted into the biological-organic fertilizers, usage of chemical fertilizers can be reduced, accordingly, resources can be saved, and environmental pollution can be reduced; physical and chemical properties of soil can be improved by the biological-organic fertilizers which are converted from the excrement, accordingly, the lean and hardened soil can be improved, and crops planted by the aid of the biological-organic fertilizers are nutritious and healthful.
Description
Technical field
The present invention relates to sanitation equipment, be specifically related to septic tank waste residue and organise and utilize treatment process.
Background technology
China is populous, human feces high number, but the process of ight soil but becomes the problem of people's headache.At present, people generally take ight soil to be discharged directly into water drain Pai Jin sewage work together with industrial sewage and process, but sewage work is when treating refuse, often cannot industry or the separately process of civilian rubbish, like this through mud that Sewage Plant process obtains, quality, just less than guarantee, cannot be used for agricultural planting, as heavy metals exceeding standard etc.
On the other hand, in the Rural areas of China, chemical fertilizer is the fertilizer often used, but life-time service chemical fertilizer can cause soil barren, harden, the safety of national food can be had influence on for a long time in the past.If the bio-organic fertilizer transformed with ight soil replaces chemical fertilizer to provide comprehensive nutrition for the growth of farm crop and can improve soil, therefore need a kind of technique ight soil being converted into bio-organic fertilizer, so namely protect environment, also can improve soil.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the invention provides a kind of septic tank waste residue and organising and utilize treatment process that septic tank waste residue is changed into bio-organic fertilizer.
The technical solution adopted in the present invention is:
A kind of septic tank waste residue organises and utilizes treatment process, is fermented by septic tank waste residue, is separated by the solid of septic tank waste residue after fermentation with liquid, then the solid obtained carries out sieving, dry, granulation obtains bio-organic fertilizer by being separated.Whole fermenting process be sealing and continual continuously.
Preferably, septic tank waste residue adds probiotic bacterium before fermentation, and stirs, and the amount of added probiotic bacterium is 2/10000ths 4/10,000 of septic tank waste residue amount.Add the growth that probiotic bacterium contributes to probiotics, thus be conducive to the fermentation of septic tank waste residue.
Preferably, described fermentation is aerobic fermentation, the duration of described fermentation is 10-14 days, and when fermenting, the leavening temperature of septic tank waste residue is by normal temperature, through the fermentation calefactions of to two days to 50-60 DEG C, and keep this temperature in after this fermenting process always, during the fermentation, first three sky stirs material every 6-8h, such septic tank waste residue that can make fully contacts with oxygen, and is conducive to the growth of probiotics and the degraded of material.Play the 9th day from the 4th day, stir material every 12h; After 9th day, stir material every 24h.After aerobic fermentation terminates, the material of septic tank waste residue and probiotic bacterium composition do not have completely initial at the beginning of stench peculiar smell, and change the breath with earth into, do not make us uncomfortable smell.
Preferably, add liquid probiotic bacterium in septic tank waste residue after fermentation, and stir.Because can heat be produced in the process of fermentation, a part of probiotic bacterium may be killed, and liquid make-up probiotic bacterium, the amount of probiotic bacterium can be increased, septic tank waste residue can be made better to be degraded, add the flowing that liquid probiotic bacterium is conducive to septic tank waste residue in addition, be convenient to transfer.
Preferably, described probiotic bacterium is EM bacterial classification, and described liquid probiotic bacterium is EM bacterium liquid.EM bacterial classification is fermented through special process by single cultures such as bifidocaterium, milk-acid bacteria, photosynthetic bacterium, actinomycetes, effectively compound microbial bacterial classification.
Preferably, carrying out anaerobic fermentation by being separated the solid obtained, after anaerobic fermentation, adding nutritive ingredient and stir, and then sieving.Be mainly psychrophile in anaerobic fermentation process, mesophilic bacteria participates in degraded.Because there being some probiotic bacteriums to be anaerobism probiotic bacteriums, septic tank produced by fermenting waste residues can being made so complete, improve the quality of fermentation.When adding nutritive ingredient, the amount of nutritive ingredient and the composition of nutritive ingredient can being added according to the farm crop planted in different soil and soil, as added nitrogen element, phosphoric etc., and stirring.
Preferably, the time of described anaerobic fermentation is 20-30 days.
Preferably, dry temperature is 60-80 DEG C, and the water content obtaining septic tank waste residue after drying is the 25-30% of its original water content.
Preferably, granulation obtains the particle diameter of bio-organic fertilizer is 3-4mm.
Preferably, in the bio-organic fertilizer that granulation obtains, add probiotic bacterium, the amount adding probiotic bacterium be bio-organic fertilizer gross weight ten thousand/, to be mixed evenly after pack.Because of in the process of granulation, can produce high temperature, except high-temperature strain, in other, the bacterial classification such as temperature all has loss in various degree, in order to ensure the amount of bacterium colony group number in bio-organic fertilizer, and then ensureing the quality of bio-organic fertilizer, adding probiotic bacterium before encapsulation.
Preferably, the bio-organic fertilizer after packaging re-uses after should preserving 10-20 days, and the result of use of such bio-organic fertilizer can be better.
Preferably, the liquid be separated after fermentation being reclaimed, because being also rich in nutrition in liquid, can use as nutritive medium after treatment.
Preferably, collect producing the waste gas produced in bio-organic fertilizer process by the mode of negative pressure, being ammonia because producing the primary waste gases produced in bio-organic fertilizer process, utilizing the characteristic that ammonia is very easily water-soluble, collected with water and prepare the nutritive medium of rich Nitrogen element.
Preferably, described septic tank waste residue organise utilize treatment process by septic tank waste residue organise all-in-one implement, the described septic tank waste residue all-in-one that organises comprises whipping device, aerobic fermentation equipment, solid-liquid separating equipment, anaerobic fermentation equipment, screening plant, drying plant, granulating equipment and packaging facilities, and described whipping device, described aerobic fermentation equipment, described solid-liquid separating equipment, described anaerobic fermentation equipment, described screening plant, described drying plant, described granulating equipment are connected by pipeline successively with described packaging facilities.
Beneficial effect of the present invention is: the invention provides a kind of septic tank waste residue and organise and utilize treatment process, waste residue in septic tank can be produced into bio-organic fertilizer, avoid the pollution of ight soil to living environment, and ight soil is converted into bio-organic fertilizer, decrease the use of chemical fertilizer, not only save resource like this, and decrease the pollution of environment; In addition the bio-organic fertilizer transformed by ight soil can improve the physico-chemical property of soil, soil that is barren, that harden is improved, and the farm crop using this bio-organic fertilizer to plant is more nutritious more healthy.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A kind of septic tank waste residue organises and utilizes treatment process, septic tank waste residue is added in whipping device, then adds the EM bacterial classification of septic tank waste residue weight 2/10000ths, be transported in fermentation unit again after stirring and ferment, this time fermentation is aerobic fermentation, and the duration of fermentation is 10 days.
When fermenting, the leavening temperature of septic tank waste residue is by normal temperature, through the fermentation calefaction of a day to 50 DEG C, and keeps this temperature in fermenting process after this always.In order to ensure that septic tank waste residue fully contacts with oxygen, accelerate the degraded of septic tank waste residue, in the process of fermentation, first three sky stirs material every 6h, played from the 4th day and stir material every 12h on the 9th day, stir material again when fermentation completes.
Because can heat be produced in the process of fermentation, temperature in fermentation unit can raise, a part of EM bacterial classification may be killed, for ensureing the amount of EM bacterial classification, septic tank waste residue weight ten thousand/EM bacterium liquid is added in the septic tank waste residue after fermentation, add the flowing that EM bacterium liquid is conducive to septic tank waste residue, convenient transfer.Again septic tank waste residue is carried out solid-liquid separation.
Because in EM bacterial classification, some is anaerobism probiotic bacterium, for the quality making septic tank produced by fermenting waste residues improve fermentation completely, the solid that separation obtains is carried out the anaerobic fermentation of 20 days, the amount of nutritive ingredient and the composition of nutritive ingredient is added according to the farm crop planted in different soils and soil after anaerobic fermentation, as nitrogen element, phosphoric etc., and stir.
Sieve the septic tank waste residue adding nutritive ingredient with 4 object screen clothes, and pulverized by the septic tank waste residue of Large stone, then the water content be dried under the condition of 60 DEG C in septic tank waste residue is 30% of its original water content.And then carry out granulation and make the particle diameter of gained bio-organic fertilizer be 3mm.In the bio-organic fertilizer of gained, add probiotic bacterium again, the amount adding probiotic bacterium be bio-organic fertilizer gross weight ten thousand/, to be mixed evenly after pack.Because producing high temperature in the process of granulation, except high-temperature strain, in other, the bacterial classification such as temperature all has loss in various degree, and in order to ensure the amount of bacterium colony group number in bio-organic fertilizer, ensures the quality of bio-organic fertilizer to add probiotic bacterium before encapsulation.
In order to make the result of use of bio-organic fertilizer better, the bio-organic fertilizer after packaging re-uses after storing 10 days.
In order to make septic tank waste residue maximize the use, in the process that bio-organic fertilizer is produced, quantity discharged drops to minimum, is reclaimed the liquid separated after fermentation, nutritious because containing in its liquid, can be used as nutritive medium after treatment and uses; Collect producing the waste gas produced in bio-organic fertilizer process by the mode of negative pressure in addition, because the primary waste gases produced in production bio-organic fertilizer process is ammonia, utilize the characteristic that ammonia is very easily water-soluble, to be collected with water and for the preparation of the nutritive medium of rich Nitrogen element.
Embodiment 2
On the basis of embodiment 1, septic tank waste residue is added in whipping device, then add the EM bacterial classification of septic tank waste residue weight 3/10000ths, the duration of aerobic fermentation is 12 days, and when fermenting, the leavening temperature of septic tank waste residue is by normal temperature, through the fermentation calefaction of a day to 55 DEG C, during the fermentation, first three sky stirs material every 7h, plays stir material every 12h on the 9th day from the 4th day, after 9th day, stir material every 24h.
For the quality making septic tank produced by fermenting waste residues improve fermentation completely, the solid that separation obtains is carried out the anaerobic fermentation of 25 days.
Sieve the septic tank waste residue adding nutritive ingredient with 6 object screen clothes, pulverized by septic tank waste residue large for particle diameter, then the water content be dried under the condition of 70 DEG C in septic tank waste residue is 27% of its original water content.And then carry out granulation and make the particle diameter of gained bio-organic fertilizer be 3.5mm.
In order to make the result of use of bio-organic fertilizer better, the bio-organic fertilizer after packaging re-uses after storing 15 days.
Embodiment 3
On the basis of embodiment 1, septic tank waste residue is added in whipping device, then add the EM bacterial classification of septic tank waste residue weight 4/10000ths, the duration of aerobic fermentation is 14 days, and when fermenting, the leavening temperature of septic tank waste residue is by normal temperature, through fermentation calefaction two days later to 60 DEG C, during the fermentation, first three sky stirs material every 8h, plays stir material every 12h on the 9th day from the 4th day, after 9th day, stir material every 24h.
For the quality making septic tank produced by fermenting waste residues improve fermentation completely, the solid that separation obtains is carried out the anaerobic fermentation of 30 days.
Sieve the septic tank waste residue adding nutritive ingredient with 6 object screen clothes, pulverized by septic tank waste residue large for particle diameter, then the water content be dried under the condition of 80 DEG C in septic tank waste residue is 25% of its original water content.And then carry out granulation and make the particle diameter of gained bio-organic fertilizer be 4mm.
In order to make the result of use of bio-organic fertilizer better, the bio-organic fertilizer after packaging re-uses after storing 20 days.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (10)
1. a septic tank waste residue organises and utilizes treatment process, it is characterized in that: septic tank waste residue is fermented, the solid of septic tank waste residue after fermentation is separated with liquid, then the solid obtained carries out sieving, dry, granulation obtains bio-organic fertilizer by being separated.
2. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: septic tank waste residue adds probiotic bacterium before fermentation, and stirs, and the amount of added probiotic bacterium is 4/20000 to ten thousand/10000ths of septic tank waste residue amount.
3. septic tank waste residue organises and utilizes treatment process according to claim 2, it is characterized in that: described fermentation is aerobic fermentation, and the duration of described fermentation is 10-14 days.
4. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: add liquid probiotic bacterium in septic tank waste residue after fermentation, and stir.
5. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: carrying out anaerobic fermentation by being separated the solid obtained, adding nutritive ingredient and stirring, and then sieve after anaerobic fermentation.
6. septic tank waste residue organises and utilizes treatment process according to claim 5, it is characterized in that: the time of described anaerobic fermentation is 20-30 days.
7. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: dry temperature is 60-80 DEG C, and the water content obtaining material after drying is the 25-30% of material gross weight.
8. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: the particle diameter that granulation obtains bio-organic fertilizer is 3-4mm.
9. septic tank waste residue organises and utilizes treatment process according to claim 1, it is characterized in that: in the bio-organic fertilizer that granulation obtains, add probiotic bacterium, the amount adding probiotic bacterium be bio-organic fertilizer gross weight ten thousand/, to be mixed evenly after pack.
10. the described septic tank waste residue of enforcement organises and utilizes the all-in-one for the treatment of process, it is characterized in that: comprise whipping device, aerobic fermentation equipment, solid-liquid separating equipment, anaerobic fermentation equipment, screening plant, drying plant, granulating equipment and packaging facilities, described whipping device, described aerobic fermentation equipment, described solid-liquid separating equipment, described anaerobic fermentation equipment, described screening plant, described drying plant, described granulating equipment are connected by pipeline successively with described packaging facilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344391.3A CN104961508B (en) | 2015-06-19 | 2015-06-19 | Septic tank waste residue, which organises, utilizes treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344391.3A CN104961508B (en) | 2015-06-19 | 2015-06-19 | Septic tank waste residue, which organises, utilizes treatment process |
Publications (2)
| Publication Number | Publication Date |
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| CN104961508A true CN104961508A (en) | 2015-10-07 |
| CN104961508B CN104961508B (en) | 2019-02-22 |
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| CN201510344391.3A Active CN104961508B (en) | 2015-06-19 | 2015-06-19 | Septic tank waste residue, which organises, utilizes treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218480A (en) * | 2017-12-25 | 2018-06-29 | 石伟 | A kind of method and its system for handling human excrement |
| CN112607936A (en) * | 2020-11-26 | 2021-04-06 | 苏州聚隆环保科技有限公司 | Sewage treatment process |
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| CN104628436A (en) * | 2015-02-14 | 2015-05-20 | 张仲元 | Method and device for preparing organic fertilizer by utilizing fecal sewage in urban septic tank |
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2015
- 2015-06-19 CN CN201510344391.3A patent/CN104961508B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307332A (en) * | 2008-06-23 | 2008-11-19 | 昆明东燃科技开发有限公司 | Innocent comprehensive approach method for human feces by biotechnology |
| CN202187001U (en) * | 2011-07-12 | 2012-04-11 | 浏阳市天恩生物科技有限公司 | Outdoor system for cycling, fermenting and treating feces and urine from livestock and poultry farm |
| CN102874996A (en) * | 2011-07-12 | 2013-01-16 | 浏阳市天恩生物科技有限公司 | Recovery and reutilization process of excrement and urine in livestock and poultry farm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218480A (en) * | 2017-12-25 | 2018-06-29 | 石伟 | A kind of method and its system for handling human excrement |
| CN112607936A (en) * | 2020-11-26 | 2021-04-06 | 苏州聚隆环保科技有限公司 | Sewage treatment process |
Also Published As
| Publication number | Publication date |
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| CN104961508B (en) | 2019-02-22 |
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Effective date of registration: 20190709 Address after: 810000 Room 242, No. 1, Hutai West Lane, Chengxi District, Xining City, Qinghai Province Patentee after: Shi Yu Address before: 810000 Room 452, Building 5, No. 12, Yuanshu Lane, Chengxi District, Xining City, Qinghai Province Patentee before: Shi Wei |
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Effective date of registration: 20210914 Address after: 810000 room 242, No. 1, Hutai West Lane, Chengxi District, Xining City, Qinghai Province Patentee after: Shi Yu Patentee after: Qinghai Xiaomei Agricultural Technology Co.,Ltd. Address before: 810000 room 242, No. 1, Hutai West Lane, Chengxi District, Xining City, Qinghai Province Patentee before: Shi Yu |