CN114315460B - Composite organic silicon fertilizer capable of accelerating biogas formation and production method thereof - Google Patents
Composite organic silicon fertilizer capable of accelerating biogas formation and production method thereof Download PDFInfo
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- CN114315460B CN114315460B CN202111516956.3A CN202111516956A CN114315460B CN 114315460 B CN114315460 B CN 114315460B CN 202111516956 A CN202111516956 A CN 202111516956A CN 114315460 B CN114315460 B CN 114315460B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a compound organic silicon fertilizer capable of accelerating biogas formation and a production method thereof, wherein the silicon fertilizer comprises the following raw materials: the material contains humus silicon powder, tourmaline powder and organic material; wherein, the organic mixture contains livestock manure and straw, and based on dry weight, the ratio of livestock manure to straw is 1:0.5 to 5; the humus-containing silicon powder accounts for 0.5 to 5 weight percent of the mass of the mixed material of the machine, and the tourmaline powder accounts for 0.1 to 0.5 weight percent of the mass of the mixed material of the machine. The method comprises the steps of forming a mixed material by sand removal of livestock and poultry manure and crushed straws according to the proportion of 1:0.5-5 of the weight of solid matters, adding humus-containing silicon powder and tourmaline powder into the mixed material after uniform mixing, placing the mixed material in a methane tank after uniform mixing, and then fermenting according to a methane fermentation basic flow. The method provided by the invention can accelerate biogas formation and can also produce ecological function organic compound fertilizer. The generation rate of the tourmaline particles and the humus-containing silicon powder is increased by 55.4 to 67.2 percent compared with that of the system biogas without adding the tourmaline particles and the humus-containing silicon powder, the generation rate of methane of the biogas is increased by 46.9 to 51.3 percent, and the removal rate of COD is increased by 19.1 to 34.5 percent.
Description
Technical Field
The invention relates to the technical field of ecological agriculture production, in particular to a compound silicon organic fertilizer capable of accelerating biogas formation and a production method thereof.
Background
Silicon is an important nutrient element composed of plant bodies, and is listed by the international soil kingdom as the fourth largest element after nitrogen, phosphorus and potassium. The silicon fertilizer is beneficial to improving photosynthesis and chlorophyll content of crops, straightening stems and leaves and promoting accumulation of organic matters. The silicon fertilizer can increase the mechanical strength of crop stems, improve the lodging resistance by more than 85%, straighten the stems and facilitate close planting. The silicon fertilizer can improve the resistance of crops to plant diseases and insect pests, reduce the occurrence of various plant diseases and insect pests, can form siliconized cells in plants after the crops absorb silicon, thicken the surface cell walls of stems and leaves, increase horny layers, form a firm protective layer, ensure that insects are not easy to bite and are difficult to invade, and particularly strengthen the resistance to rice blast, banded sclerotial blight, bacterial leaf blight, stem rot, seedling rot, leaf spot, smut, sclerotinia, rust, powdery mildew, black spot, downy mildew, gray mold, bacterial wilt, root rot and insect pests such as borer, rice planthopper, aphid, cotton bollworm, drill, white fly, root nematode and the like. The silicon fertilizer can enhance the ventilation in crops, prevent root rot and premature senility, and has important effect on preventing and treating rice root rot. The silicon fertilizer can effectively regulate the opening and closing of leaf pores and inhibit water transpiration, and enhance the stress resistance of crops such as drought resistance, dry hot air resistance, cold resistance, low temperature resistance and the like. The silicon fertilizer can enhance the pollen activity of melon and fruit crops, and the yield can be obviously improved by applying the silicon fertilizer in the flowering period. The silicon fertilizer can reduce the fixation of the phosphate fertilizer in the soil, activate the phosphorus in the soil, promote the absorption of the phosphorus by the root system and improve the utilization rate of the phosphate fertilizer. The absorption and utilization of calcium and magnesium are enhanced, and the balanced absorption of crops to different nutrients such as nitrogen, phosphorus, potassium and the like can be well regulated, so that the fertilizer is called as a plant regulating fertilizer. The silicon fertilizer is a health-care fertilizer, can activate beneficial microorganisms, improve soil, correct soil acidity, improve soil salt groups, promote organic fertilizer decomposition, inhibit soil pathogens (such as mold and other soil-borne pathogens accumulated when being continuously planted for more than 3 years in a plastic greenhouse, seriously affect the yield and quality of fruits and vegetables), and can effectively prevent and control the survival and propagation of mold, resist continuous cropping and reduce heavy metal pollution by applying the silicon fertilizer. The silicon fertilizer is a quality fertilizer, can obviously improve the quality of agricultural products, effectively prevent cracking, shrinking and malformed fruits, increase the hardness of the fruits, ensure that the fruits are right in shape, good in coloring, good in taste, good in commodity, resistant to storage and transportation and long in fresh-keeping period.
Tourmaline is a relatively common borosilicate-containing mineral. The reserves are abundant in China. The chemical formula of tourmaline is XY3Z6Si6O18 (BO 3) 3W4, and the tourmaline structurally belongs to a trigonal system. Wherein X represents a large cation and mainly comprises elements such as K, ca, na and the like. Tourmaline integrates the performances of various mineral functional materials due to the special structure. Such as spontaneous polarization, piezoelectricity, pyroelectric property, far infrared radiation, and negative ion release, and is widely used in the fields of industry, environmental protection, health care, etc.
In the actual popularization and application of methane, the tourmaline composite methanogenic microbial inoculum material is artificially added to accelerate and stabilize the methane production, so that the methane production has become one of important measures for newly building a methane tank and large-scale methane facilities; however, in the biogas application process, the generated biogas residues are time-consuming and labor-consuming to treat, and the invention provides the functional organic silicon fertilizer.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a compound organic fertilizer capable of accelerating biogas formation and a production method thereof, so as to solve the problems in the technical background.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the compound organic silicon fertilizer capable of accelerating biogas formation is characterized by comprising the following raw materials: the material contains humus silicon powder, tourmaline powder and organic material; wherein, organic compounding contains birds animal manure, straw, and based on dry weight, birds animal manure and straw's proportion is 1:0.5 to 5; the humus-containing silicon powder accounts for 0.5-5 wt% of the mass of the mixed material of the machine, and the tourmaline powder accounts for 0.1-0.5 wt% of the mass of the mixed material of the machine.
In the technical scheme, the silicon powder containing humic acid is obtained by screening silicon ores containing humic acid of plant bodies deposited in Yanghu ancient lakes, wherein SiO is contained in the silicon powder containing humic acid 2 The content is 87-90 wt%, the grain size is 300nm-5 mu m, and the content of humus in the humus-containing silicon powder is 8-12 wt%.
In the technical scheme, the particle size of tourmaline powder is 300nm-20 mu m.
The production method of the compound organic silicon fertilizer capable of accelerating biogas formation based on the above steps comprises the following steps:
s1, selecting a silicon source, wherein the silicon source adopts humus-containing silicon powder, the grain diameter of the humus-containing silicon powder is 300nm-5 mu m, and the content of humus in the humus-containing silicon powder is 8-12 wt%;
s2, tourmaline is selected, the tourmaline is crushed, and the grain diameter of tourmaline powder obtained after crushing is 300nm-20 mu m;
s3, straw treatment: crushing the straw into crushed straw with the length of <1 cm;
s4, after sand removal of livestock manure and crushed straws are mixed according to the proportion of 1:0.5-5 of the weight of solid matters, adding the humus-containing silicon powder in the step S1 and the tourmaline powder in the step S2 into the mixed materials after uniform mixing, placing the mixed materials into a methane tank, fermenting according to a methane fermentation basic process, carrying out solid-liquid separation after fermentation, collecting methane after the separated liquid passes through a liquid anaerobic digestion tank, and carrying out heat drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the methane tank to obtain the composite organic silicon fertilizer.
In the above technical scheme, in step S4, the livestock manure is one or more mixed manure selected from pig manure, cow manure and sheep manure; when the livestock manure is pig manure, the pig manure and the straw form a mixed material according to the weight ratio of 1:0.5-5 of solid matters; when the livestock manure is cow manure, the cow manure and the straw form a mixed material according to the proportion of 1:1 of the solid matters.
In the technical scheme, in the step S4, the mass of the humus-containing silicon powder is 0.5-5 wt% of the mixed material, and the mass of the tourmaline powder is 0.1-0.5 wt% of the mixed material.
In the technical scheme, the biogas digester in the step S4 is a non-stirring farmer type biogas digester or a stirring large and medium-sized biogas digester.
Compared with the prior art, the invention has the beneficial effects that:
the method provided by the invention not only can improve the biogas production rate, but also can produce the ecological function organic compound fertilizer. The invention adopts the humic-containing silicon dioxide and tourmaline to play a positive role in increasing the biogas yield, and simultaneously the produced compound fertilizer has good effect; the generation rate of the tourmaline particles and the humus-containing silicon powder is increased by 55.4 to 67.2 percent compared with that of the system biogas without adding the tourmaline particles and the humus-containing silicon powder, the generation rate of methane of the biogas is increased by 46.9 to 51.3 percent, and the removal rate of COD is increased by 19.1 to 34.5 percent.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is an SEM image of tourmaline powder;
FIG. 3 is an SEM image of humus-containing silica fume;
FIG. 4 is a graph of analysis of the particle size of silicon humate-containing ores of a silicon plant, wherein the abscissa represents the particle size of the particles, the left ordinate represents the accumulation percentage of not more than a certain particle size, and the right ordinate represents the differential distribution, which represents the percentage of the total volume occupied by different particle sizes;
fig. 5 is an SEM image of silicon humate-containing silicon ore of the silicon plant.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Example 1
The embodiment provides a compound organic silicon fertilizer capable of accelerating biogas formation, which comprises the following raw materials: the material contains humus silicon powder, tourmaline powder and organic material; wherein, organic compounding contains birds animal manure, straw, and based on dry weight, birds animal manure and straw's proportion is 1:0.5 to 5; the humus-containing silicon powder accounts for 0.5-5 wt% of the mass of the mixed material of the machine, and the tourmaline powder accounts for 0.1-0.5 wt% of the mass of the mixed material of the machine.
In this example, the tourmaline powder has a particle size of 300nm to 20. Mu.m, as shown in FIG. 2.
In this example, the humic acid containing silicon powder is obtained from PoYang Hu ancient deposited silicon plants containing humic acid silicon ore are obtained by screening; the obtained silicon powder containing humic acid after screening is shown in figure 3, and SiO in the silicon powder containing humic acid 2 The content is about 90wt%, the grain size is 300nm-5 mu m, and the humus content (the humus content refers to hydrocarbon content and is generally calculated by carbon content) is about 10wt%. Further, siO in the silicon powder containing humic acid 2 The content of the humus in the silicon powder is 87-90 wt%, and the content of the humus in the silicon powder containing the humus is 8-12 wt%.
The Poyang lake paleo-deposited silicon plant contains humic acid silicon ore, as shown in fig. 5, and the chemical components are as follows: siO (SiO) 2 77.01-80.54％、Al 2 O 3 3.03-5.35％、Fe 2 O 3 1.08-3.73%, caO 0.07-0.69%, LOI (loss on ignition) 11.96-16.13%, tiO 2 About 0.69%; the mineral composition is about: 8% of gangue, 3% of clay, 0.5% of pyrite, 0.5% of goethite, 10% of humic substances and SiO 2 78%. In the geological exploration process, a mine of humic acid-containing silicon ore of a silicon plant body deposited in the ancient way of the Poyang lake is randomly selected, and the step-by-step and depth-independent of the ore body are found to have stable SiO through the exploration of a drill bit 2 Ore bodies, at different depths, with SiO particles of 300nm-5um size 2 The silicon ore resources of the silicon implant are rich and stable, the silicon ore containing humic acid at a certain depth is selected for laser granularity analysis, and the particle size distribution is shown in figure 4.
The specific screening process of the silicon powder containing humic acid comprises the following steps:
1. coarse impurity removal:
(1) And (3) adding water and gyratory crushing: adding water into the newly mined silicon plant containing humic acid silicon ore, mixing with the mixture, and then putting the mixture into a gyratory crusher for crushing;
(2) Primary mesh screen separation: separating the gravel sieve with the size larger than 5mm by adopting a vibrating screen;
2. fine impurity removal:
(3) Primary scrubbing and stripping: placing the silicon-implanted body ore with the gravel of 5mm into a scrubbing machine for preliminary scrubbing and stripping, wherein the preliminary scrubbing time is 10-30min;
(4) Secondary mesh screen separation: sieving substances larger than 1mm by a vibrating screen;
3. removing the magnetic-containing substance:
(5) Magnetic separation and iron removal: removing iron from the crude product obtained in the step (4) by adopting a high-gradient magnetic separator to obtain feed liquid containing humic acid silicon; wherein the magnetic field intensity of the magnetic separation is more than 6000 gauss;
4. and (3) dewatering and drying:
(6) And (3) separating water: feeding the feed liquid containing the humic acid silicon into a solid-liquid separation process for solid-liquid separation to obtain the humic acid silicon;
(7) And (3) drying: drying at 120 ℃ to obtain silicon containing humic acid, wherein the silicon containing humic acid is in a hardened or agglomerated form;
wherein, the dewatering and drying can be carried out by adopting centrifugal drying or solid-liquid separation of a mud pressing machine, drying and the like.
5. Dry grinding:
(8) Dry grinding: the dried silicon powder containing humic acid is seriously hardened and crushed and separated by a dry method to obtain the silicon powder containing humic acid. Wherein, in the silicon powder containing humic acid, the carbon content (or humus content) is 8 to 12 weight percent, siO 2 The content is 87-90 wt%, and the rest is possibly Al 2 O 3 ，Fe 2 O 3 Water, organic volatile matters and the like;
referring to fig. 1, the embodiment also provides a method for producing the compound silicon organic fertilizer capable of accelerating biogas, which comprises the following steps:
s1, selecting a silicon source, wherein the silicon source adopts humus-containing silicon powder, the grain diameter of the humus-containing silicon powder is 300nm-5 mu m, and the content of humus in the humus-containing silicon powder is 8-12 wt%;
s2, tourmaline is selected, the tourmaline is crushed, and the grain diameter of tourmaline powder obtained after crushing is 300nm-20 mu m;
s3, straw treatment: crushing the straw into crushed straw with the length of <1 cm;
s4, after sand removal of livestock manure and crushed straws are mixed according to the proportion of 1:0.5-5 of solid weight, adding the humus-containing silicon powder of the step S1 and the tourmaline powder of the step S2 into the mixed materials after uniform mixing, placing the mixed materials into a methane tank, fermenting according to a methane fermentation basic process (comprising aerobic fermentation and hydrolytic acidification), carrying out solid-liquid separation after fermentation, collecting methane after the separated liquid passes through a liquid anaerobic digestion tank (a sealed tank which is sealed absolutely), and carrying out thermal drying on the solid after the solid-liquid separation of the liquid anaerobic digestion tank and the solid biogas residues in the methane tank to obtain the composite organic silicon fertilizer.
And S4, the biogas collected in the step is stored in a gas storage cabinet after passing through a desulfurizing tower.
And (3) mixing the compound organic silicon fertilizer obtained in the step (S4) with an agricultural fertilizer, granulating, drying at a low temperature after granulating, sieving and bagging. The proportion of the composite organic silicon fertilizer to the agricultural fertilizer is different, so that the fertilizer with different silicon fertilizer contents can be obtained, and the proportion of the composite organic silicon fertilizer to the agricultural fertilizer can be specifically carried out according to the silicon fertilizer requirement.
In the step S4, the livestock manure is one or more mixed manure selected from pig manure, cow manure and sheep manure. The livestock manure is pig manure, and the pig manure and the straws form a mixed material according to the weight ratio of 1:0.5-5 of solid matters. The livestock manure is cow manure, and the cow manure and the straw form a mixed material according to the proportion of 1:1 by weight of solid matters.
Comparative example 1
This embodiment is similar to embodiment 1, except that: the silicon powder containing humic acid is replaced by silicon dioxide.
Comparative example 2
This embodiment is similar to embodiment 1, except that: the silicon powder containing humic acid is replaced by sodium silicate or potassium silicate.
Comparative example 3
This embodiment is similar to embodiment 1, except that: and removing the silicon powder containing humic acid.
Comparative example 4
This embodiment is similar to embodiment 1, except that: and removing the silicon powder containing humic acid and tourmaline powder.
Comparative example 5
This embodiment is similar to embodiment 1, except that: and removing tourmaline powder.
Comparative examples 1 to 5 were produced in a similar manner to example 1, except that the ingredients were different.
Application examples
Application example 1: rural household type pig manure biogas fermentation application
The experiment uses a pig manure type biogas digester of an individual farmer as an application example, and the farmer type biogas Chi Duowei single-stage biogas digester has no stirring and semi-drying modes and belongs to batch fermentation. Respectively setting 5 groups of fermentation experiments, wherein the methane tank additive materials are the compound organic fertilizer formula with high methane yield provided by the embodiment 1 and the comparative examples 1-4, wherein the embodiment 1 is used as an experiment group, the comparative examples 1-3 are used as a control group, and the comparative example 4 is used as a blank group; and collecting the biogas production rate, the methane production rate and the COD removal rate of the 5 groups of fermentation experiments, comparing the experiment group and the control group with a blank group, and counting the biogas production rate improvement rate, the methane production rate improvement rate and the COD removal rate improvement rate of the experiment group and the control group, wherein specific statistical data are shown in table 1.
Take the formulation of example 1 as an example: the single-stage biogas digester is used for crushing tourmaline into 300nm-20 μm, and crushing straw into straw with length of <1cm, wherein the raw material is pig manure: straw 1:3-5 (calculated by the weight of solid matters) of the mixture, adding 30kg of humus-containing silicon powder and 2kg of tourmaline powder into each cubic mixture (the mass of the humus-containing silicon powder is 0.5-5 wt% of the mixture, and the mass of the tourmaline powder is 0.1-0.5 wt% of the mixture), uniformly mixing, and then carrying out biogas fermentation according to a basic process. After fermentation, carrying out solid-liquid separation, collecting methane after passing through a liquid anaerobic digestion tank, and carrying out thermal drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the biogas digester to obtain the composite organic silicon fertilizer.
Taking the formulation of comparative example 1 as an example: the single-stage biogas digester is used for crushing tourmaline into 300nm-20 μm, and crushing straw into straw with length of <1cm, wherein the raw material is pig manure: straw 1:3-5 (calculated by the weight of solid matters) of the mixed material, 30kg of silicon dioxide and 2kg of tourmaline powder (the mass of the silicon dioxide is 0.5-5 wt% of the mixed material, and the mass of the tourmaline powder is 0.1-0.5 wt% of the mixed material) are added into each cubic mixed material, and the mixed materials are uniformly mixed, and then the mixed materials are processed according to the basic flow of methane fermentation. After fermentation, carrying out solid-liquid separation, collecting methane after passing through a liquid anaerobic digestion tank, and carrying out thermal drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the biogas digester to obtain the composite organic silicon fertilizer.
Taking the formulation of comparative example 2 as an example: the single-stage biogas digester is used for crushing tourmaline into 300nm-20 μm, and crushing straw into straw with length of <1cm, wherein the raw material is pig manure: straw 1:3-5 (calculated by the weight of solid matters) of the mixed material, 30kg of sodium silicate and 2kg of tourmaline powder (the mass of the sodium silicate is 0.5-5 wt% of the mixed material and the mass of the tourmaline powder is 0.1-0.5 wt% of the mixed material) are added into each cubic mixed material, and the mixed materials are uniformly mixed, and then the mixed materials are processed according to the basic flow of methane fermentation. After fermentation, carrying out solid-liquid separation, collecting methane after passing through a liquid anaerobic digestion tank, and carrying out thermal drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the biogas digester to obtain the composite organic silicon fertilizer.
Taking the formulation of comparative example 3 as an example: the single-stage biogas digester is used for crushing tourmaline into 300nm-20 μm, and crushing straw into straw with length of <1cm, wherein the raw material is pig manure: straw 1:3-5 (calculated by the weight of solid matters) to form a mixed material, adding 2kg of tourmaline powder (the mass of the tourmaline powder is 0.1-0.5 wt% of the mixed material) into each cubic mixed material, uniformly mixing, and then carrying out the biogas fermentation according to the basic flow of biogas fermentation. After fermentation, carrying out solid-liquid separation, collecting methane after passing through a liquid anaerobic digestion tank, and carrying out thermal drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the biogas digester to obtain the composite organic silicon fertilizer.
Taking the formulation of comparative example 4 as an example: the single-stage biogas digester is used for crushing tourmaline into 300nm-20 μm, and crushing straw into straw with length of <1cm, wherein the raw material is pig manure: straw 1:3-5 (calculated by the weight of solid matters) and then carrying out the basic flow of methane fermentation. After fermentation, carrying out solid-liquid separation, collecting methane after passing through a liquid anaerobic digestion tank, and carrying out thermal drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the biogas digester to obtain the composite organic silicon fertilizer.
TABLE 1
From table 1, it can be seen that: as can be seen from comparative examples 1-3, the artificial addition of tourmaline powder can increase the biogas production rate and the methane production rate; however, the biogas production rate, the methane production rate and the improvement rate of the COD removal rate of the example 1 are remarkably improved compared with the comparative examples 1-3, which shows that the synergistic effect of the humus-containing silicon powder and the tourmaline improves the biogas yield.
In the invention, the addition of tourmaline can promote the fermentation rate of saccharomycetes, so that the reaction efficiency of the process is improved by 50-100 percent; principle of: tourmaline has growth promoting effect on large bacteria (such as lactobacillus and yeast); the humus-containing silicon powder has a promoting effect on the growth of microorganisms and has a catalytic effect on the degradation reaction of organic matters;
in the embodiment, 300nm-20 um tourmaline particles are mixed with livestock manure such as cow manure, pig manure and sheep manure and straws, and the mixture is placed in a methane acidification fermentation tank and a methanation tank, so that tourmaline and slurry are in full contact and action states, the effect on methane fermentation by taking the straws and the livestock manure such as the cow manure, the pig manure and the sheep manure as raw materials can be promoted, the methane-producing bacteria in the methane fermentation process can be effectively and immediately acted, the methane formation of a system can be accelerated by adding the material in the fermentation process, and meanwhile, the removal rate of COD, TS and VS is also obviously improved. In the liquefaction stage of methane, tourmaline can promote the growth of bacteria such as saccharomycetes, lactobacillus, bacillus subtilis and the like, is beneficial to the production of celluloses, amylase, protease and lipase and performs in-vitro enzymolysis on organic substances; in the acidogenic stage, the substances in the first stage are continuously decomposed into small molecular acid compounds while the acidogenic bacteria are further promoted to grow; in the stage of methane production, tourmaline can promote the propagation of methane producing bacteria, catalyze the methane gasification of small molecular acid compounds, and has a large amount of electric protons, thus obviously improving the methane conversion rate.
Application example 2: large and medium-sized cow dung methane tank fermentation application
The experiment takes a large and medium-sized cow dung methane tank as an application example, and the large and medium-sized cow dung methane tank is a multi-stage methane tank, and belongs to continuous fermentation. The multi-stage biogas digester method can crush tourmaline into 500 μm-20 μm, and crush straw into straw with length less than 1cm, and the raw material is cow dung: straw 1:0.5-3 (calculated by the weight of solid matters) of the mixture, 30kg of humus-containing silicon powder and 2kg of tourmaline powder (the mass of the humus-containing silicon powder is 0.5-5 wt% of the mixture, and the mass of the tourmaline powder is 0.1-0.5 wt% of the mixture) are added into each cubic mixture, and the mixture is uniformly mixed and placed into a methane tank, and then the methane tank is subjected to methane fermentation according to the basic process. After the humus-containing silica powder and tourmaline powder are added, the methane generation rate of the biogas is increased by 67.2 percent, the methane generation rate of the biogas is increased by 51.3 percent, and the COD removal rate is increased by 34.5 percent compared with the system biogas without adding the humus-containing silica powder and tourmaline powder.
Application example 3
The special silicon fertilizer for paddy rice obtained in example 1 and comparative examples 1 to 5 was used for experiments on paddy rice.
The planting process is carried out according to the conventional planting process (due to perennial rice planting, siO in soil 2 Content average below 600g/kg, silicon fertilizer implementation was required), 7 zones were set for the experiment, 6 of which were the experimental groups: sowing the special silicon fertilizer for rice obtained in the example 1 and the comparative examples 1-5; control groups are listed: and broadcasting the existing agricultural fertilizer in the market. Through experimental observation, the invention adopts the original soil SiO 2 Content (g/kg), lodging index (%), chaff SiO 2 The inventive relationship was evaluated in the data field of content (g/kg) and yield (kg/mu). The larger the lodging index is, the more easily the stalks lodge, and the lodging index 200 is taken as a lodging-resistant critical value. The fertilizer applied by the sowing is 350 Kg/mu. Specific data are shown in table 2:
TABLE 2
From table 2, it can be seen that: example 1 is compared with comparative examples 1-2, the rice in example 1 has good growth vigor, strong lodging resistance and high yield; this demonstrates that the invention adopts the characteristic of natural silicon powder containing humic acid, not common silicon dioxide or sodium silicateRatio of; siO in natural silicon powder containing humic acid 2 The content is about 90wt%, the grain diameter is 300nm-5 mu m, the humus content is about 10wt%, the silicon particles are effective silicon particles which can be used by rice, and the silicon requirements of crops in a long time can be met. Compared with the existing silicon fertilizer with large granularity, which is difficult to dissolve in paddy fields and insufficient absorption of rice, the silicon fertilizer of the invention has the advantages of small granularity within 300nm-5 mu m, rich hydroxyl on the surface, easy dissolution in paddy fields after broadcasting, effective absorption by rice and good effect.
Example 1 is compared with comparative examples 3 to 5, and the rice in example 1 has good growth vigor, strong lodging resistance and high yield, which shows that the silicon powder containing humus and tourmaline act on the rice cooperatively. In this embodiment, tourmaline functions: the root hair of the plant can be massaged, and the root hair can be developed and worked continuously; small molecular groups are hydrated for water molecular groups of soil, so that the water molecular groups are beneficial to root system absorption; the fertilizer activation in the soil and the curing effect of the organic fertilizer are beneficial to the absorption of root systems; activating chemical microelements in soil, which is beneficial to the absorption of root systems; it can inactivate harmful bacteria and protect beneficial bacteria from propagating; is beneficial to the transformation of humic substances in soil; is beneficial to the formation of microorganisms in the soil and the propagation of coelenterates and acronymphs of the soil; is beneficial to the degradation of ammonia nitrogen compounds and the absorption of root systems; is beneficial to the degradation of pesticide residues in soil and the degradation of novel pesticides; improving the air environment of soil and soil surface, and being beneficial to the growth of plants.
The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (6)
1. The compound organic silicon fertilizer capable of accelerating biogas formation is characterized by comprising the following raw materials: the material contains humus silicon powder, tourmaline powder and organic material; wherein, organic compounding contains birds animal manure, straw, and based on dry weight, birds animal manure and straw's proportion is 1: 0.5-5; the humus-containing silicon powder occupies 0.5-5wt% of the mixing mass of the machine, and the tourmaline powder occupies 0.1-0.5wt% of the mixing mass of the machine;
the silicon powder containing humic acid is obtained by screening humic acid-containing silicon ores of plant silicon bodies deposited in the ancient of Poyang lakes, wherein the content of SiO2 in the silicon powder containing humic acid is 87-90 wt%, the particle size is 300nm-5 mu m, and the content of humus in the silicon powder containing humic acid is 8-12 wt%.
2. The compound organic silicon fertilizer capable of accelerating biogas formation according to claim 1, wherein the tourmaline powder has a particle size of 300nm-20 μm.
3. A method for producing a compound organic silicon fertilizer capable of accelerating biogas formation based on the method of claim 2, which is characterized by comprising the following steps:
s1, selecting a silicon source, wherein the silicon source adopts humus-containing silicon powder, the grain diameter of the humus-containing silicon powder is 300nm-5 mu m, and the content of humus in the humus-containing silicon powder is 8-12 wt%;
s2, tourmaline is selected, the tourmaline is crushed, and the grain diameter of tourmaline powder obtained after crushing is 300nm-20 mu m;
s3, straw treatment: crushing the straw into crushed straw with the length of <1 cm;
s4, after sand removal of livestock manure and crushed straws are mixed according to the proportion of 1:0.5-5 of the weight of solid matters, adding the humus-containing silicon powder in the step S1 and the tourmaline powder in the step S2 into the mixed materials after uniform mixing, placing the mixed materials into a methane tank, fermenting according to a methane fermentation basic process, carrying out solid-liquid separation after fermentation, collecting methane after the separated liquid passes through a liquid anaerobic digestion tank, and carrying out heat drying on the solid after the solid-liquid separation in the liquid anaerobic digestion tank and the solid biogas residues in the methane tank to obtain the composite organic silicon fertilizer.
4. The method for producing the compound organic silicon fertilizer capable of accelerating biogas formation according to claim 3, wherein in the step S4, the livestock manure is one or more mixed manure selected from pig manure, cow manure and sheep manure;
when the livestock manure is pig manure, the pig manure and the straw form a mixed material according to the weight ratio of 1:0.5-5 of solid matters; when the livestock manure is cow manure, the cow manure and the straw form a mixed material according to the proportion of 1:1 of the solid matters.
5. The method for producing the compound organic silicon fertilizer capable of accelerating biogas formation according to claim 3, wherein in the step S4, the mass of the humus-containing silicon powder is 0.5-5wt% of the mixed material, and the mass of the tourmaline powder is 0.1-0.5wt% of the mixed material.
6. The method for producing a compound organic silicon fertilizer capable of accelerating biogas formation according to claim 3, wherein the biogas digester in the step S4 is a non-stirring household biogas digester or a stirring large and medium biogas digester.
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| CN103910567B (en) * | 2014-02-10 | 2016-03-16 | 镇江贝思特有机活性肥料有限公司 | A kind of special rice organic-inorganic compound fertilizer material |
| CN103898164B (en) * | 2014-04-01 | 2017-04-12 | 江西理工大学 | Method for improving biogas yield and producing composite function organic fertilizer |
| CN103911397B (en) * | 2014-04-01 | 2016-08-17 | 江西理工大学 | A kind of tourmaline goods are for the method improving biogas yield |
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