CN116283372A - Sugarcane water and fertilizer integrated processing method and processing device thereof - Google Patents
Sugarcane water and fertilizer integrated processing method and processing device thereof Download PDFInfo
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- 238000003672 processing method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 title claims abstract description 17
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- 244000000010 microbial pathogen Species 0.000 claims abstract description 10
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- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 238000002161 passivation Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 30
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- 238000012216 screening Methods 0.000 claims description 4
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- 235000013965 Lactobacillus plantarum Nutrition 0.000 claims description 3
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- 230000000644 propagated effect Effects 0.000 description 2
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- 241000283690 Bos taurus Species 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 235000013613 poultry product Nutrition 0.000 description 1
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- 238000004659 sterilization and disinfection Methods 0.000 description 1
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
- C05F17/979—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being gaseous
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
- C05F17/986—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being liquid
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Toxicology (AREA)
- Fertilizers (AREA)
Abstract
The application provides a sugarcane water and fertilizer integrated processing method and a processing device thereof, wherein the sugarcane water and fertilizer integrated processing method comprises the following steps: s10, collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor; s20, carrying out passivation treatment on heavy metals in the waste; s30, removing pathogenic microorganisms and parasitic ova by utilizing ultraviolet rays and ozone; s40, adding the composite microbial inoculum according to the mass ratio of the composite microbial inoculum to the waste of 1:1000 to 1:5000; s50, the mixed solution pretreated in the step S40 is digested in a reactor under the control of temperature and pressure for 2 to 5 days. The technical scheme of the application effectively solves the problem that livestock and poultry raising waste pollutes the environment in the prior art.
Description
Technical Field
The application relates to the technical field of organic water-soluble fertilizer production by waste, in particular to a sugarcane water-fertilizer integrated processing method and a processing device thereof.
Background
With the rapid development of economy, the living standard of masses is increasingly improved, and the demands of people on animal proteins such as pigs, cows, sheep, chickens, ducks and the like are continuously increased. The meat food with the livestock and poultry products as the main food is taken as daily consumer goods on dining tables of people, promotes the development of livestock and poultry breeding industry to be more and more different, and simultaneously promotes the construction of standardized and large-scale livestock and poultry farms. On the other hand, the ecological environment pollution problem caused by the large-scale rapid expansion of the livestock and poultry raising industry is also increasing. The main reason is that a great amount of waste is generated in the livestock and poultry breeding process, and the surrounding ecological environment is greatly influenced. The main points are as follows:
firstly, the livestock and poultry breeding waste contains a large amount of pathogenic microorganisms and parasitic ova, and is also a main medium for breeding mosquitoes and flies. With the continuous increase of the number of livestock and poultry, pathogenic microorganisms and parasitic ova in the environment can be greatly propagated and spread, so that people and livestock contacted with the microorganisms and parasitic ova are infected. Once the pestilence of livestock and poultry is exploded and is not effectively controlled in time, the epidemic situation spread in a large area is easily caused.
Secondly, livestock farms generally adopt a large amount of water to clean the farms, so that water resources are wasted, and a large amount of pollutants are carried in the generated sewage. The related data show that the concentration of NH3-N (ammonia nitrogen content index) in the sewage discharged by livestock and poultry farms can reach 4000mg/L, which is more than 100 times of the sewage discharge standard of enterprises. When sewage is discharged into natural environment, not only can the deterioration of surrounding water quality be accelerated, but also water eutrophication can be caused, nitrogen and phosphorus in the water quality can be increased, and the local aquaculture development and water ecology are seriously threatened.
Disclosure of Invention
The application provides a sugarcane water and fertilizer integrated processing method and a processing device thereof, which are used for solving the problem that livestock and poultry breeding waste pollutes the environment in the prior art.
In order to solve the problems, the application provides a sugarcane water and fertilizer integrated processing method, which comprises the following steps: s10, collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor; s20, carrying out passivation treatment on heavy metals in the waste; s30, removing pathogenic microorganisms and parasitic ova by utilizing ultraviolet rays and ozone; s40, adding the composite microbial inoculum according to the mass ratio of the composite microbial inoculum to the waste of 1:1000 to 1:5000; s50, digesting the mixed solution pretreated in the step S40 in a reactor for 2 to 5 days under the control of temperature and pressure.
Further, in step S50, the method includes the steps of establishing a data transformation matrix, and establishing a comprehensive evaluation model based on the data transformation for screening.
Further, in step S50, pulse air supply is employed.
Further, the pulse air supply is performed every 1 second to 2 seconds, and the air supply is performed for 1 second.
Further, in step S50, the temperature in the reactor is monitored in real time, ensuring a stepwise increase in the temperature inside the reactor.
Further, the temperature stepwise rising process is divided into two stages: the first stage: starting the reaction until the next day, and increasing the temperature from normal temperature to 30 ℃; and a second stage: the temperature was raised from 30 ℃ to 45 ℃ and maintained from day two to day five.
Further, the composite microbial inoculum comprises at least one of active lactobacillus, lactobacillus acidophilus, lactobacillus plantarum, lactobacillus bulgaricus, lactobacillus delbrueckii, saccharomycetes, bacillus subtilis, bacillus polymyxa, bacillus brevis and bacillus anthracis.
According to another aspect of the present application, there is also provided a sugarcane water-fertilizer integrated processing device, the sugarcane water-fertilizer integrated processing device being used for the above-mentioned sugarcane water-fertilizer integrated processing method, the sugarcane water-fertilizer integrated processing device including: the reactor comprises a reactor body and a fluid circulation channel, wherein the reactor body comprises a charging opening, a gas adding opening, a gas exhaust opening and a discharge opening, the charging opening and the gas exhaust opening are positioned at the upper part of the reactor body, the gas adding opening and the gas exhaust opening are both positioned at the lower part of the reactor body, and the fluid circulation channel is arranged in the reactor body.
Further, the fluid circulation channel includes a plurality of fluid cylinders, an upper port of the fluid cylinder having a predetermined distance from an upper inner wall of the reactor body, and a lower port of the fluid cylinder having a predetermined distance from a lower inner wall of the reactor body.
Further, the inner wall of the fluid barrel has a constriction and a plurality of collars spaced apart along the axis of the fluid barrel.
Compared with the prior art, the technical scheme provided by the application has the following advantages:
according to the technical scheme, livestock and poultry waste, livestock and poultry cleaning liquid and other wastes are processed into nutrient substances needed by sugarcane through a series of operations such as heavy metal removal, sterilization and digestion, so that the reutilization of the waste can be realized, the environment pollution caused by the waste is avoided, and the nutrient substances needed by the growth of plants such as sugarcane can be obtained. Namely, the processing method reduces the pollution to the environment and creates value. The technical scheme of the application effectively solves the problem that livestock and poultry raising waste pollutes the environment in the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 shows a schematic process flow diagram of a sugarcane water-fertilizer integrated processing method according to an embodiment of the application;
FIG. 2 shows a schematic structural diagram of a reactor of the sugarcane water-fertilizer integrated processing method of FIG. 1;
fig. 3 shows a schematic view of the internal structure of the reactor of fig. 2.
Wherein the above figures include the following reference numerals:
1. a reactor body; 2. a reactor cover; 3. a feed inlet; 4. an exhaust port; 5. a liquid baffle; 6. a probe sleeve; 7. a jacket; 8. a bracket; 9. a guide cylinder group; 10. a discharge port; 11. a gas distributor; 12. a deflector; 13. flowing out of the sieve holes; 14. necking structure, 15, bulge loop.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
As shown in fig. 1 to 3, the sugarcane water-fertilizer integrated processing method of the embodiment comprises the following steps: s10, collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor; s20, carrying out passivation treatment on heavy metals in the waste; s30, removing pathogenic microorganisms and parasitic ova by utilizing ultraviolet rays and ozone; s40, adding the composite microbial inoculum according to the mass ratio of the composite microbial inoculum to the waste of 1:1000 to 1:5000; s50, digesting the mixed solution pretreated in the step S40 in a reactor for 2 to 5 days under the control of temperature and pressure.
By applying the technical scheme of the embodiment, the wastes of livestock and poultry and the wastes such as livestock and poultry cleaning liquid are processed into nutrient substances required by sugarcane through a series of operations such as removing heavy metals, sterilizing and digesting, so that the reutilization of the wastes can be realized, the environment pollution caused by the wastes is avoided, and the nutrient substances required by the growth of plants such as sugarcane can be obtained. Namely, the processing method of the embodiment reduces the pollution to the environment and creates value. The technical scheme of the embodiment effectively solves the problem that livestock and poultry raising waste pollutes the environment in the prior art.
By detecting heavy metals in livestock and poultry waste, the heavy metals include organic arsenic, copper and the like.
As shown in fig. 1, in the technical solution of the present embodiment, in the step S50, the method includes establishing a data transformation matrix, and establishing a comprehensive evaluation model based on the data transformation for screening. The efficiency can be greatly improved through theoretical screening, the experiment time is reduced, and the cost is saved.
In the embodiment, livestock and poultry cultivation wastes collected from livestock and poultry farms are taken as main raw materials, and are digested and degraded to produce the organic water-soluble fertilizer suitable for sugarcane planting and water-fertilizer integration, and the optimal control scheme of factors such as reaction temperature, pressure, dissolved oxygen concentration and the like in the production process is determined based on a uniform test method. As a test method suitable for multi-factor control and high in precision requirement, the uniform test method can reduce complex and complicated test times to the greatest extent.
The production scheme is designed:
summarizing the prior production experience, the reaction temperature of raw materials such as livestock and poultry raising wastes should be kept at 30-45 ℃; for the airlift reactor, in order to prevent the foreign bacteria pollution caused by the entry of external air, the system pressure should be kept slightly higher than the external atmospheric pressure, and 0.1-0.15MPa is desirable; for bacteria and yeast microorganisms, the sufficient oxygen content in the reaction liquid is ensured, and the concentration of dissolved oxygen is 5-10%.
Reasonable intervals of various indexes of the water-soluble fertilizer at the end of production are shown in the following table:
according to the information, an experimental scheme meeting the production process requirement is designed by combining a uniform design method and a uniform design use table as shown in the following table 1:
table 1: design of experimental scheme for production process
The same reaction raw materials are placed in a reactor and are respectively reacted for 5 days according to the experimental scheme, so that various indexes of the organic water-soluble fertilizer are obtained as shown in the following table 2:
table 2: experimental plan results of production process
Establishing a data transformation matrix:
and comprehensively evaluating the production scheme, and firstly, establishing an evaluation object set and an evaluation index value. The evaluation object set is a production scheme system: f= (F 1 ,F 2 ,F 3 ,F 4 ,F 5 ,F 6 ,F 7 ,F 8 ,F 9 ,F 10 ) Evaluation index value: g= (the amount by which each index exceeds a reasonable interval). On the basis, an evaluation matrix X= (X) ij ) 10×6 sample values, each column of the matrix X is an evaluation index, and 6 items are total; each behavior is different in production scheme and has 10 schemes in terms of evaluation values of evaluation indexes. X is x ij Representing the ith scheme about the jth itemEvaluation value of the price index. In the production experiment, the following sample values can be obtained for the percentage of the absolute value measured by each index exceeding the reasonable interval:
comprehensive evaluation model based on data transformation:
according to the data evaluation model, setting an original matrix as X:
(1) Establishing a weight vector by using a coefficient of variation method:
ω j =(0.2315,0.2064,0.1529,0.0982,0.1973,0.1136)
(2) An ideal scheme is established:
(3) Establishing a relative deviation fuzzy matrix R:
wherein, the liquid crystal display device comprises a liquid crystal display device,the MATLAB software was used to obtain:
(4) Establishing a comprehensive evaluation model:
the evaluation criteria are: if D i >D j The index of the ith scheme is better than the index of the jth scheme.
The method comprises the following steps of:
D 1 =0.6220,D 2 =0.6009,D 3 =0.8545,D 4 =0.6479,D 5 =0.5052,
D 6 =0.5049,D 7 =0.7714,D 8 =0.7429,D 9 =0.7985,D 10 =0.6032。
the ranking of the various schemes according to the evaluation criteria can be known as follows:
F 3 →F 9 →F 7 →F 8 →F 4 →F 1 →F 10 →F 2 →F 5 →F 6
1. specific MATLAB running program:
> m=mean (X); % calculation of mean value of each index
m=(0.0360,0.1000,0.0460,0.1330,0.2300,0.1220)
> s=std (X); % calculation of standard deviation of each index
s=(0.0513,0.1269,0.0433,0.0803,0.2791,0.0852)
> v=s./abs (m); % calculation of coefficient of variation for each index
v=(1.4236,1.2693,0.9404,0.6036,1.2134,0.6985)
W=v/sum (v); % calculation of the weights of the respective indicators
w=(0.2315,0.2064,0.1529,0.0982,0.1973,0.1136)
R=abs (X-ones (10, 1) max (X))/[ ones (10, 1) range (X) ]; % calculation of the relative deviation matrix
>>D=R*w ’ The method comprises the steps of carrying out a first treatment on the surface of the % calculation of comprehensive evaluation value
D=(0.6220,0.6009,0.8545,0.6479,0.5052,0.5049,0.7714,0.7429,0.7985,0.6032)
> F1, t1] =sort (D); % comprehensive evaluation value ranking
F1=(0.5049,0.5052,0.6009,0.6032,0.6220,0.6479,0.7429,0.7714,0.7985,0.8545)
t1=(6,5,2,10,1,4,8,7,9,3)
2. Analysis of results:
for further researching the scientific rationality of the production scheme 3 obtained by the data transformation comprehensive evaluation model, simple analysis and discussion are made for the rationality of weight distribution affecting evaluation and the accuracy of experimental results under corresponding weights:
(1) Rationality analysis:
in order to achieve the aim of innocent treatment of livestock and poultry raising waste, the livestock and poultry raising waste collected from livestock and poultry farms is taken as a main raw material to be digested and degraded to produce the organic water-soluble fertilizer suitable for the integration of sugarcane planting and water-fertilizer. The control of the component content of the raw material and the related factors in the production process has important influence on the production result, and is mainly characterized by pH value, ammonia nitrogen content, organic matter content and phosphorus contentThe sulfur content, COD and other indexes. The result of the production scheme 3 shows that the pH value, the organic matter content, the sulfur content and the COD in the six indexes are all in a reasonable interval, and the ammonia nitrogen content and the phosphorus content slightly exceed the reasonable interval, but can be regulated by changing the nitrogen content and the phosphorus content of the production raw materials. In combination, the various index conditions of the production scheme 3 are better than those of other production schemes. It can be seen that each index weight omega of the production result determined by combining the test and the data transformation comprehensive evaluation model j = (0.2315,0.2064,0.1529,0.0982,0.1973,0.1136) is scientific and reasonable.
(2) Accuracy analysis:
the good and bad ordering of the production scheme obtained based on the data transformation comprehensive evaluation model is as follows: f (F) 3 →F 9 →F 7 →F 8 →F 4 →F 1 →F 10 →F 2 →F 5 →F 6 . For the six indexes, the production schemes capable of simultaneously meeting the maximum indexes within the reasonable interval are scheme 3 and scheme 8, and the four indexes are simultaneously met within the reasonable interval. However, for scheme 8, the sulfur content is too high, exceeding 70% of the upper limit, belonging to a serious superscalar; while the ammonia nitrogen content and the phosphorus content of the scheme 3 exceeding the index range are slightly higher or slightly lower than a reasonable interval, the excess is only 10% and 22%. Thus, in a combined sense, the various indicators of production scheme 3 are indeed the most reasonable of all production schemes. Therefore, the production scheme obtained based on the data transformation comprehensive evaluation model is scientific and reasonable, and the result is relatively accurate.
From the above results, it can be seen that: the production scheme 3 selected by adopting the comprehensive evaluation model of uniform design and data transformation is ideal as the production scheme for producing the organic water-soluble fertilizer suitable for the integration of the water and fertilizer for sugarcane planting. The temperature, pressure and dissolved oxygen concentration during the production process are shown in the following table:
temperature (temperature) | Pressure of | Dissolved oxygen concentration |
35.2 | 0.16 | 6.9 |
As shown in fig. 2 and 3, in the technical solution of the present embodiment, in step S50, pulse air supply is adopted. The pulse type air supply is adopted, so that the contact effect of the liquid and the gas is better, and the liquidity of the liquid is better. In the present embodiment, the pulse gas supply is performed for 1 second every 1 second to 2 seconds.
As shown in fig. 1, in the technical solution of the present embodiment, in step S50, the temperature in the reactor is monitored in real time, so as to ensure that the temperature in the reactor increases stepwise. According to the characteristics of the livestock and poultry waste, the temperature rises stepwise, so that the reaction effect in the livestock and poultry waste is better, the reaction time can be saved.
As shown in fig. 1, in the technical solution of the present embodiment, the temperature step-up process may be divided into two stages: the first stage: the reaction was started until the next day, and the temperature was raised from normal temperature to 30 ℃. And a second stage: the temperature was raised from 30 ℃ to 45 ℃ and maintained from day two to day five. The temperature of the first stage can enable microorganisms to be rapidly propagated, and the temperature of the second stage has a good microorganism fermentation effect.
In the technical scheme of the embodiment, the composite microbial inoculum comprises at least one of active lactobacillus, lactobacillus acidophilus, lactobacillus plantarum, lactobacillus bulgaricus, lactobacillus delbrueckii, saccharomycetes, bacillus subtilis, bacillus polymyxa, bacillus brevis and bacillus anthracis. The activated composite microbial inoculum is prepared by adopting different composite microbial inoculum formulation technologies according to different material characteristics.
As can be seen from the above, the present embodiment includes the following steps: s10, collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor; s20, carrying out passivation treatment on heavy metals in the waste; s30, removing pathogenic microorganisms and parasitic ova by utilizing ultraviolet rays and ozone; s40, adding the composite microbial inoculum according to the mass ratio of the composite microbial inoculum to the waste of 1:1000 to 1:5000; s50, digesting the mixed solution pretreated in the step S40 in a reactor for 2 to 5 days under the control of temperature and pressure. In the embodiment, livestock and poultry cultivation waste collected from livestock and poultry farms is taken as a main raw material, and is digested and degraded to produce the organic water-soluble fertilizer suitable for sugarcane planting and water-fertilizer integration. The proportion of the water-soluble fertilizer nutrient elements meets the requirements of the sugarcane on the fertilizer in different growth periods, and the water-fertilizer integrated fertigation can be implemented on the sugarcane.
The following is a description of data from three sets of experiments:
experiment 1:
the integrated processing method of the sugarcane water and fertilizer comprises the following steps:
step one: collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor;
step two: passivating and pre-treating residual organic arsenic, copper and other heavy metal ions in the waste by adopting a related method;
step three: removing pathogenic microorganisms and parasitic ova by using ultraviolet rays and ozone;
step four: according to the material characteristics, a reasonable composite microbial agent formula technology is adopted to prepare an activated composite microbial agent, and the mass ratio is 1:1000 kg;
step five: and (3) digesting the pretreated raw material in a liquid state in a bioreactor for 3d under the control of temperature and pressure. The pulse type air supply is adopted in the period, and the air is supplied for 1s every 1s. In the case of a 100L reactor, the amount of gas supplied was 2.0L each time, and the total amount of gas supplied was 60L/min. The temperature in the reactor was monitored in real time to ensure a stepwise rise. The rising process can be divided into two stages:
stage 1: starting the reaction until 1.5 days, and increasing the temperature from normal temperature to 30 ℃;
stage 2: day 1.5 to day 3, the temperature was raised from 30 ℃ to 35.2 ℃ and maintained.
Monitoring the pressure in the reactor in real time, and regulating a pressure control valve through an automatic control system to keep the internal pressure of the reactor constant at 0.16MPa; the dissolved oxygen concentration in the reactor was monitored in real time and the value was controlled to 6.9% by adjusting the amount of supplied gas and the oxygen content of the supplied gas.
Experiment 2:
the integrated processing method of the sugarcane water and fertilizer comprises the following steps:
step one: collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor;
step two: passivating and pre-treating residual organic arsenic, copper and other heavy metal ions in the waste by adopting a related method;
step three: removing pathogenic microorganisms and parasitic ova by using ultraviolet rays and ozone;
step four: according to the material characteristics, a reasonable composite microbial agent formula technology is adopted to prepare an activated composite microbial agent, and the mass ratio is 1:3000 kg;
step five: and (3) digesting the pretreated raw material in a liquid state in a bioreactor for 4d under the control of temperature and pressure. The pulse type air supply is adopted in the period, and the air supply is carried out for 1s every 1.5 s. In the case of a 100L reactor, the amount of gas supplied was 2.5L each time, and the total amount of gas supplied was 60L/min. The temperature in the reactor was monitored in real time to ensure a stepwise rise. The rising process can be divided into two stages:
stage 1: starting the reaction until the 2 nd day, and increasing the temperature from normal temperature to 30 ℃;
stage 2: on days 2 to 4, the temperature was raised from 30 ℃ to 35.2 ℃ and maintained.
Monitoring the pressure in the reactor in real time, and regulating a pressure control valve through an automatic control system to keep the internal pressure of the reactor constant at 0.16MPa; the dissolved oxygen concentration in the reactor was monitored in real time and the value was controlled to 6.9% by adjusting the amount of supplied gas and the oxygen content of the supplied gas.
Experiment 3:
the integrated processing method of the sugarcane water and fertilizer comprises the following steps:
step one: collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor;
step two: passivating and pre-treating residual organic arsenic, copper and other heavy metal ions in the waste by adopting a related method;
step three: removing pathogenic microorganisms and parasitic ova by using ultraviolet rays and ozone;
step four: according to the material characteristics, a reasonable composite microbial agent formula technology is adopted to prepare an activated composite microbial agent, and the mass ratio is 1:5000 kg;
step five: and (3) digesting the pretreated raw material in a liquid state in a bioreactor for 5 days under the control of temperature and pressure. The pulse type air supply is adopted in the period, and the air supply is carried out for 1s every 2 s. In the case of a 100L reactor, the amount of gas supplied per time was 3.0L and the total amount of gas supplied was 60L/min. The temperature in the reactor was monitored in real time to ensure a stepwise rise. The rising process can be divided into two stages:
stage 1: starting the reaction until the 2.5 th day, and increasing the temperature from normal temperature to 30 ℃;
stage 2: from day 2.5 to day 5, the temperature was raised from 30 ℃ to 35.2 ℃ and maintained.
Monitoring the pressure in the reactor in real time, and regulating a pressure control valve through an automatic control system to keep the internal pressure of the reactor constant at 0.16MPa; the dissolved oxygen concentration in the reactor was monitored in real time and the value was controlled to 6.9% by adjusting the amount of supplied gas and the oxygen content of the supplied gas.
And (3) carrying out related index detection on the organic water-soluble fertilizer which is obtained in the experiment 1-3 and is suitable for the integration of the water and the fertilizer for sugarcane planting, wherein the result is shown in the following table:
as can be seen from the table, the process technology and the equipment for integrating the water and the fertilizer for sugarcane planting disclosed by the invention have the advantages that all indexes of the produced organic water-soluble fertilizer reach the specifications of standards such as NY/T3831-2021 common requirement of organic water-soluble fertilizer, NY 1110-2010 limit requirement of water-soluble fertilizer mercury, arsenic, cadmium, lead and chromium, NY 1107-2010 macroelement water-soluble fertilizer and the like. Each typical physicochemical index specified in the relevant standard is as follows:
the application also provides a sugarcane liquid manure integrated processing device, and sugarcane liquid manure integrated processing device is used for foretell sugarcane liquid manure integrated processing method, and sugarcane liquid manure integrated processing device includes: a reactor. The reactor comprises a reactor body and a fluid circulation channel, wherein the reactor body comprises a charging opening, a gas adding opening, a gas exhaust opening and a discharge opening, the charging opening and the gas exhaust opening are positioned at the upper part of the reactor body, the gas adding opening and the gas exhaust opening are both positioned at the lower part of the reactor body, and the fluid circulation channel is arranged in the reactor body.
As shown in fig. 2 and 3, the fluid circulation channel includes a plurality of fluid cylinders, an upper port of which has a predetermined distance from an upper inner wall of the reactor body, and a lower port of which has a predetermined distance from a lower inner wall of the reactor body. The inner wall of the fluid cylinder has a constriction and a plurality of collars spaced apart along the axis of the fluid cylinder. These designs allow for better fluid and gas contact.
According to the fig. 2-3, the sugarcane water and fertilizer integrated processing device can be obtained: comprises a reactor body 1, a reactor cover 2, a liquid baffle 5, a guide cylinder group 9 and a gas distributor 11. The reactor comprises a reactor body 1 and a reactor cover 2. The outside of the reactor body 1 is wrapped by a jacket 7, and the internal medium can be adjusted according to the requirement to keep the temperature or refrigerate the reactor. The jacket 7 is provided with a bracket 8. The side wall of the reactor body 1 is provided with a probe sleeve 6 which can be used for placing probes of each parameter detector, and the probes are connected to external parameter monitoring equipment to realize real-time monitoring of relevant parameters inside the reactor. The periphery of the bottom of the reactor body 1 is provided with a discharge port 10 which is connected with a gas distributor 11. The reactor cover 2 is provided with a feed inlet 3 and an exhaust outlet 4, and a liquid baffle 5 is arranged between the reactor cover and the liquid level, so that the reaction raw materials can be prevented from being sprayed out along with the gas. In order to enable the reaction raw materials sprayed onto the liquid baffle plate 5 to quickly fall back into the reactor to participate in the reaction, the downward side of the liquid baffle plate is provided with a convex-concave surface, in particular a zigzag structure. The guide cylinder group 9 is composed of five guide cylinders (fluid cylinders), and a guide plate 12 is arranged outside each guide cylinder. The four guide cylinders on the outer ring are provided with annular guide plates, and the central guide cylinder adopts a form of alternately distributing diamond guide plates and the annular guide plates. The guide plates 12 can be matched with annular guide plates on the inner wall of the reactor body 1 to lead the reaction raw materials to baffle downwards between the guide plates 12, prolong the time for dissolving oxygen in the reaction raw materials, strengthen the gas exchange between strain cells and the reaction raw materials, fully mix different components in the reaction raw materials and strengthen the gas-liquid mass transfer. The guide cylinder group 9 adopts a combination mode of matching five guide cylinders to influence the flow direction of reaction raw materials, so that the flow field in the reactor can be changed to obtain vortex flow to strengthen mass transfer while the reaction raw materials are prevented from directly rising from the middle to the top. So that some solid matters in the initial stage of the reaction move together with the reaction raw materials and are decomposed, and the solid matters are prevented from accumulating under the guide plates 12 in the middle of the guide cylinder group 9. Each flow guide plate 12 is distributed with different sizes of outflow sieve holes 13, the section of the outflow sieve holes 13 is in a ladder shape, the upper part is wide, the lower part is narrow, so that the cross-sectional area is continuously reduced when the reaction raw material flows through the outflow sieve holes 13, the pressure is also continuously increased, and the reaction raw material escapes due to the sudden increase of the cross-sectional area after leaving the outflow sieve holes 13, so that the flow field effect is increased. The middle part of the guide cylinder is provided with the necking structure 14, and the gas phase and the liquid phase flow into the front half part of the necking structure 14 under high pressure, pass through the narrow throat and then escape from the rear half part, so that the flow velocity of the gas phase and the liquid phase is obviously improved, and the gas phase and the liquid phase are promoted to be fully mixed. Convex rings 15 are oppositely arranged at intervals in the guide cylinder to serve as compression surfaces, so that the pressure distribution near the area can be increased, the nearby reaction raw materials can quickly overflow to the upper side, and the circulation of the reaction raw materials is enhanced. The gas distributor 11 adopts a disc-type gas distributor 11, five round holes are formed in the upper surface of the disc-type gas distributor 11, the five round holes correspond to the five guide cylinders respectively, and only small holes are formed in the round holes, so that the ascending section and the descending section in the reactor can be clearly distinguished without disorder. The gas distributor 11 may be connected to an air pump for supplying the reactor. A pressure control system can be arranged between the gas distributor 11 and the air pump, and the pressure in the reactor is kept constant by adjusting a pressure control valve through an automatic control system while monitoring the pressure in the reactor in real time. The reactor is a pressure vessel, the reactor body comprises a sealing head, and the reactor cover can be a blind flange of a manhole or a manhole on the sealing head or a blind flange of a larger hole which is convenient for feeding and setting.
In the production process, in order to accelerate the air flow in the fluid cylinder, so that the air flow is better mixed with the reaction raw materials, a necking structure is additionally arranged in the middle of the fluid cylinder. The specific parameters of the necking structure are determined as follows:
1. calculating the area ratio:
let the flow of the air flow in the fluid cylinder be isentropic flow and reach sound velocity at the throat, mach number to which the air flow is accelerated at the outlet of the fluid cylinder be Ma e . The area ratio of the outlet section to the throat section of the fluid cartridge is then:
wherein A is e Is the outlet cross-sectional area; a is that t Is the throat area; gamma is the adiabatic index.
The gas introduced during the production of the present application is sterile air, γ=1.4, so:
thus, the area ratio of the outlet section of the device to the throat section can be obtained.
2. Checking working conditions:
the present application need not beThe airflow is accelerated to supersonic speed, and the airflow always flows at subsonic speed in the device, and belongs to working conditionsWherein (1)>p b For downstream back pressure of the device, p 0 Is the total upstream pressure of the device, i.e., the upstream-downstream pressure ratio within the fluid cartridge. />For the third characteristic pressure ratio, the third characteristic pressure ratio can be obtained by checking a complete gas isentropic flow function table by a given area ratio or by calculating the third characteristic pressure ratio by the following mode:
substituting γ=1.4, then:
substituting the area ratio into the above equation to obtain Mach number Ma t . From the Mach number, the characteristic pressure p of the corresponding device can be obtained 3 Then, the pneumatic function formula can be used for obtaining:
because the invention is influenced by the pressure control system in the production process, the internal pressure of the reactor is always kept between 0.1 and 0.15MPa, namely: downstream back pressure p of the device b =0.1 to 0.15MPa. Let the upstream total pressure of the device be p 0 Then:
if the pressure ratio of the device obtained by the area ratio is proved to meet the above formula, the device meets the requirements.
Taking a 100L reaction apparatus as an example:
the fermentation liquor needs to be continuously adjusted from the upper part of the reactor in the fermentation process, so that the feeding of operators is facilitated, and a lower height-diameter ratio is adopted. And because a plurality of convex rings are oppositely arranged at intervals in the guide cylinder, and the middle part is provided with a necking structure, energy loss is generated when the gas phase and the liquid phase flow through the places. An excessively high aspect ratio will greatly reduce the velocity of the gas-liquid two phases at the end of the rising section, thus setting the aspect ratio of the reactor to 5.
The application adopts pulse type air supply, and the gas phase and the liquid phase rise rapidly in the rising section and slowly descend between the guide plates in the descending section. Therefore, the flow rate of the gas-liquid two-phase in the ascending section is increased, and the flow rate in the descending section is reduced, so that the gas-liquid mass transfer effect can be better enhanced. Smaller guide cylinder diameters and lower ascending and descending area ratios are then used.
Since the aspect ratio of the reactor is 5, the internal cross-sectional area of the reactor should be 0.1075m 2 The height is 0.925m. To achieve the above object, the rising section area/falling section area=0.6. Thus the total cross-sectional area of the guide cylinder group is 0.04m 2 The cross-sectional area of the descending section is 0.0675m 2 . Thus, the radius of the individual guide cylinder should be 0.05m. Namely: outlet cross-sectional area A of known necking structure e About 0.008m 2 The downstream back pressure of the device is 0.1-0.15 MPa. The gas flow is accelerated to Mach 0.8 at the lowest and Mach 0.9 at the highest in the necking structure, and the total pressure at the inlet of the device is 0.1MPa. Then:
when the airflow is accelerated to mach 0.8 in the fluid cartridge, there are:
available device throat area A t Minimum should be 0.0077m 2 。
through the checking and calculation, the method has the advantages of high accuracy,it can be seen that the flow condition of the air flow in the device meets the condition +.>
When the airflow is accelerated to mach 0.9 in the fluid cartridge, there are:
available device throat area A t Maximum of 0.0079m 2 。
through the checking and calculation, the method has the advantages of high accuracy,it can be seen that the flow condition of the air flow in the device meets the condition +.>
As described above, the necking structure provided by the present invention has a throat area ranging from 0.0077m to 0.0079m 2 Between them.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the 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 (10)
1. The sugarcane water and fertilizer integrated processing method is characterized by comprising the following steps of:
s10, collecting livestock and poultry breeding waste from a livestock and poultry farm and putting the livestock and poultry breeding waste into a reactor;
s20, carrying out passivation treatment on heavy metals in the waste;
s30, removing pathogenic microorganisms and parasitic ova by utilizing ultraviolet rays and ozone;
s40, adding the composite microbial inoculum according to the mass ratio of the composite microbial inoculum to the waste of 1:1000 to 1:5000;
s50, digesting the mixed solution pretreated in the step S40 in a reactor for 2 to 5 days under the control of temperature and pressure.
2. The method according to claim 1, wherein in the step S50, the method comprises creating a data transformation matrix, and creating a comprehensive evaluation model based on the data transformation for screening.
3. The method according to claim 1, wherein in step S50, pulse gas supply is used.
4. A sugarcane water-fertilizer integrated processing method according to claim 3, wherein the pulse gas supply is performed for 1 second every 1 second to 2 seconds.
5. The method according to claim 1, wherein in step S50, the temperature in the reactor is monitored in real time to ensure a stepwise increase in the temperature in the reactor.
6. The integrated processing method of sugarcane water and fertilizer according to claim 5, wherein the temperature step-up process is divided into two stages:
the first stage: starting the reaction until the next day, and increasing the temperature from normal temperature to 30 ℃;
and a second stage: the temperature was raised from 30 ℃ to 45 ℃ and maintained from day two to day five.
7. The sugarcane water-fertilizer integrated processing method according to claim 1, wherein the composite microbial inoculum comprises at least one of active lactobacillus, lactobacillus acidophilus, lactobacillus plantarum, lactobacillus bulgaricus, lactobacillus delbrueckii, saccharomycetes, bacillus subtilis, bacillus polymyxa, bacillus brevis and bacillus anthracis.
8. A sugar cane water-fertilizer integrated processing device, characterized in that the sugar cane water-fertilizer integrated processing device is used for the sugar cane water-fertilizer integrated processing method of any one of claims 1 to 7, the sugar cane water-fertilizer integrated processing device comprising:
the reactor comprises a reactor body and a fluid circulation channel, wherein the reactor body comprises a charging port, a gas adding port, a gas exhaust port and a discharge port, the charging port and the gas exhaust port are positioned on the upper part of the reactor body, the gas adding port and the discharge port are both positioned on the lower part of the reactor body, and the fluid circulation channel is arranged in the reactor body.
9. The sugarcane water-fertilizer integrated processing apparatus according to claim 8, wherein the fluid circulation channel comprises a plurality of fluid cylinders, an upper port of the fluid cylinders having a predetermined distance from an upper inner wall of the reactor body, and a lower port of the fluid cylinders having a predetermined distance from a lower inner wall of the reactor body.
10. The sugarcane water and fertilizer integrated processing apparatus according to claim 9, wherein the inner wall of the fluid barrel has a constriction and a plurality of collars, the constriction and the plurality of collars being spaced apart along the axis of the fluid barrel.
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