CN113462604A - Fermentation aid for domestic organic garbage and domestic organic garbage treatment method - Google Patents
Fermentation aid for domestic organic garbage and domestic organic garbage treatment method Download PDFInfo
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Abstract
The invention discloses a method for treating domestic organic garbage as a domestic organic garbage fermentation auxiliary agent, wherein the domestic organic garbage fermentation auxiliary agent comprises a complex enzyme preparation and a complex microbial inoculum, the complex enzyme preparation comprises high-temperature-resistant alkaline protease, cellulase, amylase and a stabilizer, and the complex microbial inoculum comprises bacillus stearothermophilus, bacillus subtilis, high-temperature-resistant pseudomonas flavus, cellulomonas flavigena and water. The invention solves the problem that the domestic organic wet garbage which is put in a residential area in a classified way is easy to deteriorate and affects the environmental sanitation.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a domestic organic garbage fermentation auxiliary agent and a domestic organic garbage treatment method.
Background
The domestic organic wet garbage is animal and plant food residue garbage and kitchen garbage which are discharged by urban residents in daily life and accounts for 50-60% of the total amount of the domestic garbage. With the improvement of city management level in China, first-line cities begin to classify garbage and begin to put organic wet garbage, dry garbage and harmful garbage into management in a classified mode.
The domestic organic wet garbage at the garbage throwing point in a community contains a large amount of organic matters such as carbohydrate, protein, cellulose and the like, and can be rotten and fermented to generate odor when being stored and transported in time, and organisms such as mosquitoes, flies, maggots and the like are bred, so that the environmental sanitation is seriously influenced. In order to ensure the environmental sanitation of the residential area, the measures of regularly throwing garbage are adopted in Shanghai at present, and a lot of inconvenience is caused to residents. On the other hand, the domestic organic wet garbage is easy to generate secondary pollution in the transportation process.
Disclosure of Invention
In order to overcome the defects of the prior art, a method for treating domestic organic garbage by using a domestic organic garbage fermentation auxiliary agent is provided so as to solve the problem that domestic organic wet garbage which is put in a residential area in a classified mode is easy to deteriorate and affect environmental sanitation.
In order to achieve the purpose, the auxiliary fermentation agent for the domestic organic garbage comprises a complex enzyme preparation and a complex microbial inoculum, wherein the complex enzyme preparation comprises high-temperature resistant alkaline protease, cellulase, amylase and a stabilizer, and the complex microbial inoculum comprises bacillus stearothermophilus, bacillus subtilis, high-temperature resistant pseudomonas flavigena, cellulomonas flavigena and water.
Further, the stabilizer is fatty alcohol-polyoxyethylene ether.
Further, the compound enzyme preparation comprises 28.5% of high-temperature resistant alkaline protease, 20% of cellulase, 35% of amylase and 16.5% of stabilizer by weight percent.
Further, the composite microbial inoculum comprises 35% of bacillus stearothermophilus, 26% of bacillus subtilis, 12% of high-temperature-resistant pseudomonas pumila, 8% of cellulomonas flavigena and the balance of water by weight percent.
The invention provides a method for treating domestic organic garbage, which comprises the following steps:
providing a reaction vessel and a domestic organic garbage fermentation auxiliary agent, and putting domestic organic wet garbage into the reaction vessel;
adding water to the complex enzyme preparation of the domestic organic garbage fermentation aid to prepare a first fermentation liquid with the mass fraction of 5%, adding water to the complex enzyme preparation of the domestic organic garbage fermentation aid to prepare a second fermentation liquid with the mass fraction of 10%, and putting the first fermentation liquid and the second fermentation liquid into the reaction vessel in which the domestic organic wet garbage is put;
after the first fermentation liquid and the second fermentation liquid are put into the reaction vessel, the domestic organic wet garbage, the first fermentation liquid and the second fermentation liquid are stirred and mixed uniformly, then high-temperature aerobic fermentation is carried out, and the fermentation temperature of the domestic organic wet garbage is maintained at 80-90 ℃.
Further, the input amount of the first fermentation liquid is 1% of the mass of the domestic organic wet garbage.
Further, the input amount of the second fermentation liquor is 2% of the mass of the domestic organic wet garbage.
Further, before the domestic organic wet garbage is subjected to high-temperature aerobic fermentation, the water content of the domestic organic wet garbage is adjusted to 40% -50%.
The invention has the beneficial effects that the complex enzyme preparation of the domestic organic garbage fermentation auxiliary agent is a biological activator combining a plurality of enzymes and nonionic surface active agents, and the complex enzyme preparation hydrolyzes macromolecular organic matters of the domestic organic wet garbage in the high-temperature aerobic fermentation process to decompose the macromolecular organic matters into micromolecular organic matters capable of being absorbed and utilized by microorganisms. Specifically, the compound enzyme preparation hydrolyzes organic pollutants in the domestic organic wet garbage into monomer and oligomer matrixes with the molecular weight of less than 1000Da, so that the monomer and oligomer matrixes with the molecular weight of less than 1000Da enter microbial cells to participate in metabolic reaction for degradation through mass transfer. The composite microbial inoculum of the domestic organic garbage fermentation auxiliary agent increases the number of dominant microorganisms in the domestic organic wet garbage, and can be rapidly propagated, the temperature is increased, the water is evaporated, the oxygen absorption speed is higher under the hydrolysis coordination of the composite microbial inoculum, and the organic matter decomposition and decomposition speed is greatly accelerated.
The domestic organic garbage fermentation auxiliary agent can rapidly decompose and mature organic matters of the domestic organic wet garbage, so that the volume of the matured domestic organic wet garbage is about 10% of that of the original domestic organic wet garbage. On the other hand, the aged organic nutrient soil can be obtained after the organic matters of the domestic organic wet garbage are decomposed and decomposed. The cured organic nutrient soil can be used as a raw material to produce organic fertilizer, so that the domestic organic wet garbage can be changed into valuable, economic benefit is generated, and the environment is protected.
Detailed Description
The present application will be described in further detail with reference to examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to examples.
The invention provides a domestic organic garbage fermentation auxiliary agent, which comprises a complex enzyme preparation and a complex microbial inoculum.
Specifically, the complex enzyme preparation comprises high-temperature resistant alkaline protease, cellulase, amylase and a stabilizer.
In a preferred embodiment, the stabilizer is fatty alcohol-polyoxyethylene ether.
In a preferred embodiment, the compound enzyme preparation comprises 28.5% of high-temperature resistant alkaline protease, 20% of cellulase, 35% of amylase and 16.5% of stabilizer by weight percent.
The composite microbial inoculum comprises Bacillus stearothermophilus, Bacillus subtilis, high temperature resistant light yellow pseudomonas, cellulomonas flavigena and water.
In a preferred embodiment, the composite microbial inoculum comprises 35% of bacillus stearothermophilus, 26% of bacillus subtilis, 12% of high-temperature-resistant pseudomonas flava, 8% of cellulomonas flavigena and the balance of water by weight percent.
The complex enzyme preparation of the domestic organic garbage fermentation auxiliary agent is a biological activator combining a plurality of enzymes and non-ionic surface active agents, and the complex enzyme preparation hydrolyzes macromolecular organic matters of the domestic organic wet garbage in a high-temperature aerobic fermentation process to decompose the macromolecular organic matters into micromolecular organic matters capable of being absorbed and utilized by microorganisms. Specifically, the compound enzyme preparation hydrolyzes organic pollutants in the domestic organic wet garbage into monomer and oligomer matrixes with the molecular weight of less than 1000Da, so that the monomer and oligomer matrixes with the molecular weight of less than 1000Da enter microbial cells to participate in metabolic reaction for degradation through mass transfer. The composite microbial inoculum of the domestic organic garbage fermentation auxiliary agent increases the number of dominant microorganisms in the domestic organic wet garbage, and can be rapidly propagated, the temperature is increased, the water is evaporated, the oxygen absorption speed is higher under the hydrolysis coordination of the composite microbial inoculum, and the organic matter decomposition and decomposition speed is greatly accelerated.
The domestic organic garbage fermentation auxiliary agent can rapidly decompose and mature organic matters of the domestic organic wet garbage, so that the volume of the matured domestic organic wet garbage is about 10% of that of the original domestic organic wet garbage. On the other hand, the aged organic nutrient soil can be obtained after the organic matters of the domestic organic wet garbage are decomposed and decomposed. The cured organic nutrient soil can be used as a raw material to produce organic fertilizer, so that the domestic organic wet garbage can be changed into valuable, economic benefit is generated, and the environment is protected.
The complex enzyme preparation of the domestic organic garbage fermentation auxiliary agent can rapidly decompose macromolecular organic matters in sludge in the domestic organic wet garbage into micromolecular organic matters convenient for microorganisms to absorb and utilize, stimulate the microorganisms in a reactor to grow and reproduce, and strengthen the decomposition function of the microorganisms; quickly decompose various organic matters in the garbage.
The compound enzyme preparation of the domestic organic garbage fermentation auxiliary agent has the following other functions: the intermediate product generated by combining with organic macromolecules in the domestic organic wet garbage is replaced and adsorbed by clay ions, so that the double-layer structure of clay minerals is broken, the water adsorption capability of clay particles is weakened, the thickness of a water film on the surfaces of the clay particles is correspondingly reduced under the action of a surfactant, the structure of the clay is changed, and the water discharge and evaporation are facilitated.
The composite microbial inoculum of the domestic organic garbage fermentation auxiliary agent is the microbes needed by garbage decomposition, and because the domestic organic wet garbage contains a small amount of microbes, fewer dominant bacteria and slow natural growth and increment speed, after the microbial inoculum is added, the number of the dominant microbes is increased, the dominant microbes are quickly propagated, the temperature is raised, the water evaporation and the oxygen absorption speed are faster under the hydrolysis coordination of a composite enzyme preparation, and the decomposition and decomposition speed of organic matters is greatly accelerated.
The invention provides a method for treating domestic organic garbage, which comprises the following steps:
s1: providing a reaction vessel and a domestic organic garbage fermentation auxiliary agent, and putting the domestic organic wet garbage into the reaction vessel.
S2: adding water into the complex enzyme preparation of the domestic organic garbage fermentation auxiliary agent to prepare a first fermentation liquid with the mass fraction of 5%, adding water into the complex enzyme preparation of the domestic organic garbage fermentation auxiliary agent to prepare a second fermentation liquid with the mass fraction of 10%, and putting the first fermentation liquid and the second fermentation liquid into the reaction container filled with the domestic organic wet garbage.
Specifically, in preparation of the first fermentation solution, 5 parts by mass of the complex enzyme preparation was added to 95 parts by mass of water to prepare the first fermentation solution.
When preparing the second fermentation liquid, 10 parts by mass of the complex enzyme preparation is put into 90 parts by mass of water to prepare the second fermentation liquid.
When the first fermentation liquid is added into the domestic organic wet garbage, the adding amount of the first fermentation liquid is 1% of the mass of the domestic organic wet garbage.
When the second fermentation liquor is added into the domestic organic wet garbage, the adding amount of the second fermentation liquor is 2% of the mass of the domestic organic wet garbage.
S3: after the first fermentation liquid and the second fermentation liquid are put into the reaction container, the domestic organic wet garbage, the first fermentation liquid and the second fermentation liquid are stirred and mixed uniformly, then high-temperature aerobic fermentation is carried out, and the fermentation temperature of the domestic organic wet garbage is maintained at 80-90 ℃.
After the first fermentation liquid and the second fermentation liquid are put into the reaction container, the water content of the domestic organic wet garbage is adjusted to 40% -50%.
After the domestic organic wet garbage is visually observed to present gaps similar to sawdust samples, the prepared first fermentation liquid and second fermentation liquid are poured.
The first fermentation liquid and the second fermentation liquid are added and stirred and mixed uniformly by a stirrer in the reaction vessel for high-temperature aerobic fermentation. And during the fermentation period, maintaining the fermentation temperature of the domestic organic wet garbage in the reaction container at 80-90 ℃.
In this example, the reaction vessel is equipped with a stirrer, auxiliary heating, forced exhaust, and the like. The domestic organic wet garbage thrown into the reaction container is kitchen garbage in a residential area. The volume of the reaction vessel was 1000L.
The following table shows experimental data obtained in comparative experiments conducted for several days (8/10/2020 to 8/17/2020) using the fermentation aid for domestic organic waste and the reaction vessel of this example. Among them, the fermentation test of the domestic organic wet garbage without the addition of the domestic organic garbage fermentation auxiliary agent was carried out on 10/8/2020 and 14/8/2020, and the fermentation test of the domestic organic wet garbage with the addition of the domestic organic garbage fermentation auxiliary agent was carried out in the remaining time.
Continuation table
As can be seen from the above table, the domestic organic wet garbage has the advantages of fast fermentation temperature rise and fast oxygen absorption under the action of the domestic organic garbage fermentation auxiliary agent, greatly quickening the decomposition and decomposition speed of organic matters, and shortening the decomposition and fermentation time to one fourth of the fermentation time of the domestic organic wet garbage added with the domestic organic garbage fermentation auxiliary agent.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. The household organic garbage fermentation auxiliary agent is characterized by comprising a complex enzyme preparation and a complex microbial inoculum, wherein the complex enzyme preparation comprises high-temperature resistant alkaline protease, cellulase, amylase and a stabilizer, and the complex microbial inoculum comprises bacillus stearothermophilus, bacillus subtilis, high-temperature resistant pseudomonas flavigena, cellulomonas flavigena and water.
2. The auxiliary fermentation agent for household organic garbage as claimed in claim 1, wherein the stabilizer is fatty alcohol-polyoxyethylene ether.
3. The auxiliary fermentation agent for domestic organic garbage according to claim 1, wherein the composite enzyme preparation comprises 28.5% of high temperature resistant alkaline protease, 20% of cellulase, 35% of amylase and 16.5% of stabilizer by mass percentage.
4. The auxiliary fermentation agent for household organic garbage as claimed in claim 1, wherein the composite microbial inoculum comprises 35% of Bacillus stearothermophilus, 26% of Bacillus subtilis, 12% of high temperature resistant Pseudomonas flava, 8% of Cellulomonas flavus and the balance of water by weight percentage.
5. The method for treating the household organic garbage is characterized by comprising the following steps:
providing a reaction vessel and the domestic organic waste fermentation aid according to any one of claims 1 to 4, and putting the domestic organic wet waste into the reaction vessel;
adding water to the complex enzyme preparation of the domestic organic garbage fermentation aid to prepare a first fermentation liquid with the mass fraction of 5%, adding water to the complex enzyme preparation of the domestic organic garbage fermentation aid to prepare a second fermentation liquid with the mass fraction of 10%, and putting the first fermentation liquid and the second fermentation liquid into the reaction vessel in which the domestic organic wet garbage is put;
after the first fermentation liquid and the second fermentation liquid are put into the reaction vessel, the domestic organic wet garbage, the first fermentation liquid and the second fermentation liquid are stirred and mixed uniformly, then high-temperature aerobic fermentation is carried out, and the fermentation temperature of the domestic organic wet garbage is maintained at 80-90 ℃.
6. The method according to claim 5, wherein the amount of the first fermentation solution added is 1% by mass of the wet domestic organic waste.
7. The method according to claim 5, wherein the amount of the second fermentation solution added is 2% by mass of the wet domestic organic waste.
8. The method for treating domestic organic waste according to claim 5, wherein the moisture content of said wet domestic organic waste is adjusted to 40% -50% before said wet domestic organic waste is subjected to high-temperature aerobic fermentation.
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| CN111392875A (en) * | 2020-03-25 | 2020-07-10 | 北京邦源环保科技股份有限公司 | Microbial compound enzyme for purifying river and lake sludge and application thereof |
| CN112481152A (en) * | 2020-11-05 | 2021-03-12 | 上海应用技术大学 | Microbial agent-enzyme preparation compound and method for degrading kitchen garbage by using same |
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2021
- 2021-07-22 CN CN202110828868.0A patent/CN113462604A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408177A (en) * | 2011-08-19 | 2012-04-11 | 广州珠水环境科技有限公司 | Biological complex enzyme for sludge recycling and use method thereof |
| CN104289493A (en) * | 2013-07-15 | 2015-01-21 | 深圳市绿微康生物工程有限公司 | Harmless minimization bio-treatment method for organic waste |
| CN105087411A (en) * | 2014-05-12 | 2015-11-25 | 中国科学院过程工程研究所 | Bacterial complex for high-temperature composting of municipal solid wastes and production method thereof |
| CN107216188A (en) * | 2017-05-10 | 2017-09-29 | 广宁县奥茵环境工程科技有限公司 | A kind of sludge aerobic compost Biostimulation agent and application method |
| CN111392875A (en) * | 2020-03-25 | 2020-07-10 | 北京邦源环保科技股份有限公司 | Microbial compound enzyme for purifying river and lake sludge and application thereof |
| CN112481152A (en) * | 2020-11-05 | 2021-03-12 | 上海应用技术大学 | Microbial agent-enzyme preparation compound and method for degrading kitchen garbage by using same |
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