CN110526752B - Method for transforming dry latrine by using compound bacteria - Google Patents
Method for transforming dry latrine by using compound bacteria Download PDFInfo
- Publication number
- CN110526752B CN110526752B CN201910828168.4A CN201910828168A CN110526752B CN 110526752 B CN110526752 B CN 110526752B CN 201910828168 A CN201910828168 A CN 201910828168A CN 110526752 B CN110526752 B CN 110526752B
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- Prior art keywords
- crop straws
- compound bacteria
- straws
- dry latrine
- dry
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
- A47K11/02—Dry closets, e.g. incinerator closets
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/04—Fertilisers from human or animal excrements, e.g. manure from human faecal masses
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- 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
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- 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
The invention discloses a method for improving a dry latrine by using composite bacteria, belonging to the technical field of fermentation engineering. The invention discloses a method for reforming a dry latrine by using composite bacteria, which uses waste crop straws as main raw materials, adds a carbon source and the composite bacteria, and improves the utilization rate of the crop straws; the primary fermentation product is added into a toilet to be directly contacted with human excrement and urine for secondary fermentation, no equipment is needed, the method is simple, the raw material source is wide, the finally prepared organic fertilizer can be put into the farmland again, and the method is economical and beneficial to environmental protection.
Description
Technical Field
The invention relates to the technical field of fermentation engineering, in particular to a method for improving a dry toilet by using composite bacteria.
Background
At present, dry latrines are adopted in northern areas of China, and excrement of the dry latrines has high pollution degree due to low water content and numerous solid impurities, and is more difficult to treat than excrement of water closets and has larger pollution degree to the environment. The fecal treatment method in the prior art comprises the following steps: firstly, carrying out solid-liquid separation on excrement, wherein the step is carried out in solid-liquid separation equipment, the separated solid sundries are sent to a deslagging room, the separated liquid is discharged into an excrement regulating tank, the regulating tank is used for caching the separated excrement liquid, the effluent water is discharged by adopting power, and the excrement liquid in the regulating tank is discharged by a sewage conveying system; and then flocculating and dehydrating the liquid dung conveyed by the regulating reservoir, wherein the step is carried out in a flocculating and dehydrating device, the dehydrated dry excrement mud enters a fertilizer making device for making fertilizer, and the filtered liquid obtained after dehydration can cause eutrophication of a water body, such as green tide and red tide. Namely, the existing fecal treatment method has complex steps, needs to invest a large amount of capital and is not beneficial to environmental protection.
Therefore, the problem to be solved by the technical personnel in the field is to provide a method for modifying a dry latrine by using the composite bacteria.
Disclosure of Invention
In view of the above, the invention provides a method for transforming a dry toilet by using composite bacteria, which is simple, economic, economical and beneficial to environmental protection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for transforming a dry latrine by using compound bacteria comprises the following specific steps:
(1) crushing crop straws;
(2) mixing the crushed crop straws with auxiliary materials according to the proportion of 7-8: 1;
(3) adding a composite microbial inoculum into a mixture of crop straws and auxiliary materials, and adding 1-2kg of the composite microbial inoculum into 1 ton of the mixture;
(4) stacking the mixed substances to 1-1.8m, and fermenting for 18-22 days to obtain a primary fermentation product;
(5) and adding the primary fermentation product below the squatting position of the dry toilet, and performing secondary fermentation on the primary fermentation product and human excrement for 4-6 months to generate the organic fertilizer.
Further, the crop straws in the step (1) are crushed to 3-5 cm.
Further, the crop straws in the step (1) comprise wheat straws, wheat bran, corn straws, corncobs and branch crushed materials.
Further, the auxiliary material in the step (2) is bran or corn flour.
Further, the composite microbial inoculum in the step (3) is prepared from bacillus subtilis, bacillus amyloliquefaciens, bacillus aceticus and saccharomyces cerevisiae according to the weight ratio of 4: 1: 2: 3, and mixing the components in a ratio of 3. The bacillus subtilis, the bacillus amyloliquefaciens and the bacillus aceticus are liquid microbial agents, and the concentration is billion level; the saccharomyces cerevisiae is a solid microbial inoculum, and the concentration per gram is billion.
Further, the fermentation process in the step (4) is carried out according to the following steps of 5: 3: 3: and turning over the pile for 2 days.
The composite microbial inoculum can generate heat by itself, the whole fermentation process is natural fermentation without heating, the stacking height is required to be 1-1.8m to meet the fermentation requirement in the stacking process, the expected effect is achieved, the temperature reaches more than 55 ℃ on the third day of stacking, the temperature is kept for 7-10 days, then the temperature is gradually reduced to 45-50 ℃, and the humidity is controlled to be 60-80%. In the fermentation process, according to the temperature change condition in the reactor, the fermentation temperature is controlled according to the following ratio of 5: 3: 3: turning over the pile for 2 days; namely, the pile can be turned from the fifth day, and then the pile can be turned once every 3 days, 3 days and 2 days, so as to replenish water in time.
According to the technical scheme, compared with the prior art, the method for improving the dry latrine by using the compound bacteria is disclosed, waste crop straws are used as main raw materials, and the carbon source and the compound bacteria are added, so that the utilization rate of the crop straws is improved; the primary fermentation product is added into a toilet to be directly contacted with human excrement and urine for secondary fermentation, no equipment is needed, the method is simple, the raw material source is wide, the finally prepared organic fertilizer can be put into the farmland again, and the method is economical and beneficial to environmental protection.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for transforming a dry latrine by using compound bacteria comprises the following specific steps:
(1) pulverizing crop straws such as wheat straw and corn straw to 3-5 cm;
(2) mixing the crushed crop straws with auxiliary materials according to the proportion of 7.5: 1;
(3) adding a composite microbial inoculum into a mixture of crop straws and auxiliary materials, and adding 1.5kg of the composite microbial inoculum into 1 ton of the mixture;
(4) stacking the mixed substances to 1.5m, turning the piles for the first time on day 5, turning the piles for the first time every 3 days, 3 days and 2 days later, supplementing water in time to enable the water content to reach 60-80%, and fermenting for 20 days to obtain a primary fermentation product;
(5) one ton of primary fermentation product is added below the straight-through dry toilet squatting position, and the primary fermentation product and human excrement are subjected to secondary fermentation for 5 months to generate the organic fertilizer.
The generated organic fertilizer is detected, and the result shows that the organic fertilizer completely meets the national standard. Wherein, the organic matter: 386.9 g/kg; quick-acting nitrogen 134.91 mg/kg; 155.50mg/kg of quick-acting phosphorus; quick-acting potassium 6431.17 mg/kg; pH 6.83; the water content is 18 percent; total As 2.1 mg/kg; hg is 0.22 mg/kg; cd; 0.98 mg/kg; cr 12 mg/kg; ascarid egg mortality was not detected; 8 faecal coliform bacteria groups per gram; viable count 7.06X 108。
The technical scheme of the invention can be circulated twice every year, one family can produce about two tons of organic fertilizer, the whole fermentation process does not need to be heated, human excrement and urine are completely contacted with the straws, the bacteria for fermentation simultaneously have the deodorization function, and odor and mosquito and fly breeding are hardly caused.
The dry toilet disclosed by the invention does not need to be covered, does not need to be rainproof and heated, is suitable for four seasons all the year around, and is particularly suitable for rural areas in the north.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A method for reforming a dry latrine by using compound bacteria is characterized by comprising the following specific steps:
(1) crushing crop straws;
(2) mixing the crushed crop straws with auxiliary materials according to the proportion of 7-8: 1; the auxiliary material is bran or corn flour;
(3) adding a composite microbial inoculum into a mixture of crop straws and auxiliary materials, and adding 1-2kg of the composite microbial inoculum into 1 ton of the mixture; the composite microbial inoculum is prepared from bacillus subtilis, bacillus amyloliquefaciens, bacillus aceticus and saccharomyces cerevisiae according to the weight ratio of 4: 1: 2: 3, mixing the components in proportion;
(4) stacking the mixed substances to 1-1.8m, and fermenting for 18-22 days to obtain a primary fermentation product;
(5) and adding the primary fermentation product below the squatting position of the dry toilet, and performing secondary fermentation on the primary fermentation product and human excrement for 4-6 months to generate the organic fertilizer.
2. The method for improving the dry latrine by using the compound bacteria as claimed in claim 1, wherein the crop straws in the step (1) are crushed to 3-5 cm.
3. The method for improving the dry latrine by using the compound bacteria as claimed in claim 1, wherein the crop straws in the step (1) comprise wheat straws, wheat bran, corn straws, corncobs and branch crumbs.
4. The method for improving the dry latrine by utilizing the compound bacteria as claimed in claim 1, wherein the fermentation process in the step (4) is as follows: 3: 3: and turning over the pile for 2 days.
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| CN201910828168.4A CN110526752B (en) | 2019-09-03 | 2019-09-03 | Method for transforming dry latrine by using compound bacteria |
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| CN201910828168.4A CN110526752B (en) | 2019-09-03 | 2019-09-03 | Method for transforming dry latrine by using compound bacteria |
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| CN110526752A CN110526752A (en) | 2019-12-03 |
| CN110526752B true CN110526752B (en) | 2022-03-18 |
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| CN111348947A (en) * | 2020-03-13 | 2020-06-30 | 湖南海尚生态科技有限公司 | Two-stage fermentation method for producing organic fertilizer in waterless ecological dry toilet and organic fertilizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053432A (en) * | 2013-01-07 | 2013-04-24 | 湖南省微生物研究所 | Fermenting bed bioactive padding and preparation and application methods thereof |
| CN103740611A (en) * | 2013-12-19 | 2014-04-23 | 山西省农业科学院生物技术研究中心 | Compound microorganism agent, application of compound microorganism agent in degradation of humic acid and application method of compound microorganism agent |
| CN106497836A (en) * | 2016-10-26 | 2017-03-15 | 北京大伟嘉生物技术股份有限公司 | A kind of complex micro organism fungicide of fermented stalk and its preparation method and application |
| CN107867939A (en) * | 2017-12-01 | 2018-04-03 | 厦门康浩科技有限公司 | A kind of livestock and poultry feces give up outer fermentation bed |
| CN108794174A (en) * | 2018-07-02 | 2018-11-13 | 山东博华高效生态农业科技有限公司 | A kind of waste deodorant and its application method |
| CN110169366A (en) * | 2019-06-10 | 2019-08-27 | 刘坚 | Its Zero-emission pig-raising method of a kind of pig raising system of zero-emission and application |
-
2019
- 2019-09-03 CN CN201910828168.4A patent/CN110526752B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053432A (en) * | 2013-01-07 | 2013-04-24 | 湖南省微生物研究所 | Fermenting bed bioactive padding and preparation and application methods thereof |
| CN103740611A (en) * | 2013-12-19 | 2014-04-23 | 山西省农业科学院生物技术研究中心 | Compound microorganism agent, application of compound microorganism agent in degradation of humic acid and application method of compound microorganism agent |
| CN106497836A (en) * | 2016-10-26 | 2017-03-15 | 北京大伟嘉生物技术股份有限公司 | A kind of complex micro organism fungicide of fermented stalk and its preparation method and application |
| CN107867939A (en) * | 2017-12-01 | 2018-04-03 | 厦门康浩科技有限公司 | A kind of livestock and poultry feces give up outer fermentation bed |
| CN108794174A (en) * | 2018-07-02 | 2018-11-13 | 山东博华高效生态农业科技有限公司 | A kind of waste deodorant and its application method |
| CN110169366A (en) * | 2019-06-10 | 2019-08-27 | 刘坚 | Its Zero-emission pig-raising method of a kind of pig raising system of zero-emission and application |
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Inventor after: Li Xiaoming Inventor after: Li Xiaoyu Inventor after: He Xiaoguang Inventor after: Guo Xinrong Inventor after: Wang Wenquan Inventor after: Ma Zhitao Inventor before: Li Xiaoming Inventor before: Guo Xinrong Inventor before: Li Xiaoyu Inventor before: Huang Minlang |
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