Macroelement water-soluble fertilizer based on livestock and poultry breeding wastewater and preparation method of macroelement water-soluble fertilizer

Abstract

The invention relates to the technical field of water-soluble fertilizers, in particular to a macroelement water-soluble fertilizer based on livestock and poultry breeding wastewater and a preparation method thereof, and the macroelement water-soluble fertilizer comprises the following raw materials in parts by weight: 50-60 parts of a breeding waste liquid concentrated base solution, 17-20 parts of amido nitrogen, 20-25 parts of potassium polymetaphosphate, 17-20 parts of phosphorus element, 17-20 parts of potassium oxide, 0.5-1 part of trace element boron, 0.5-1 part of trace element copper and 60-65 parts of solvent water. According to the macroelement water-soluble fertilizer disclosed by the invention, a base solution obtained by concentrating culture waste liquid is used as a matrix, the raw materials are coordinated, and the filling agent doped with the modified carbon nanotubes and the modified functional agent are added as blenders, so that the macroelement water-soluble fertilizer is prepared through the synergistic effect of the filling agent and the modified functional agent; the obtained water-soluble fertilizer product has obvious improvement effects on cotton crop disease resistance, seed cotton yield and fiber quality.

Description

Technical Field

[0001] The invention relates to the technical field of water-soluble fertilizers, and in particular to a large-element water-soluble fertilizer based on livestock and poultry breeding wastewater and a preparation method thereof. Background Art

[0002] Harmless treatment and resource utilization of agriculture can promote the sustainable green development of ecological agriculture. This technology is used in the research and development, production and promotion of intelligent equipment and fertilizers, and uses a one-stop, automated and digital production and processing system to achieve zero emissions, high efficiency and safety. It has successfully solved the environmental pollution and high processing costs caused by the large amount of waste containing pathogens, heavy metals, salts and odors generated by breeding companies. It also utilizes livestock and poultry manure as a resource into national standard commercial fertilizers that can enter the market. It not only saves the environmental protection costs of treating breeding waste, but also creates profits through high-value-added fertilizer products to achieve sustainable development. At the same time, it solves the health problems of plants and soil, and creates organic water-soluble fertilizer products that are affordable for grain crops.

[0003] The water-soluble fertilizers produced in the prior art have little effect on improving the disease resistance, seed cotton yield and fiber quality of cotton crops, which affects the growth quality of the plants. At the same time, the products do not significantly improve the quality of cotton under drought and saline-alkali conditions, further limiting the use efficiency of the water-soluble fertilizers. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solution:

[0006] The present invention provides a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater, comprising the following raw materials in parts by weight:

[0007] The base liquid for concentrated aquaculture waste liquid treatment is 50-60 parts, amide nitrogen is 17-20 parts, potassium polymetaphosphate is 20-25 parts, phosphorus is 17-20 parts, potassium oxide is 17-20 parts, trace element boron is 0.5-1 parts, trace element copper is 0.5-1 parts and solvent water is 60-65 parts.

[0008] Preferably, the macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater comprises the following raw materials in parts by weight:

[0009] 55 parts of base liquid for concentrated treatment of aquaculture waste liquid, 18.5 parts of amide nitrogen, 22.5 parts of potassium polymetaphosphate, 18.5 parts of phosphorus, 18.5 parts of potassium oxide, 0.75 parts of trace element boron, 0.75 parts of trace element copper and 62 parts of solvent water.

[0010] Preferably, the phosphorus element is provided by monoammonium phosphate; the amide nitrogen is provided by urea; and the base liquid for concentrated treatment of aquaculture waste liquid comprises the following raw materials in parts by weight:

[0011] 20-25 parts of humic acid, 2-4 parts of L-cysteine, 2-5 parts of calcium nitrate, 2-5 parts of magnesium nitrate and 10-15 parts of 5% chitosan solution.

[0012] Preferably, the water-soluble fertilizer further comprises 8 to 12 parts of a filler of doped modified carbon nanotubes and 5 to 8 parts of a modified functional agent;

[0013] The preparation method of the filler of doped modified carbon nanotubes is as follows:

[0014] S01: preparing a silicic acid solution with a mass fraction of 5-8% and a sodium dodecylbenzene sulfonate solution with a mass fraction of 2-5%; uniformly mixing 2-5 parts of wollastonite, 1-3 parts of the sodium silicate solution and 3-5 parts of the sodium dodecylbenzene sulfonate solution to obtain a first modifier;

[0015] S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 4-6 parts of the pretreated volcanic rock and 3-5 parts of magnesium oxide to 5-8 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier;

[0016] S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive;

[0017] S04: The carbon nanotubes are uniformly stirred in a sufficient amount of a potassium permanganate solution with a mass fraction of 5-8%, and then washed with water, filtered and dried. The dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:5. After the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube modifier.

[0018] S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of (5-7):3 and ball-milled at a speed of 1000-1500 r / min for 2 hours. After the ball milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

[0019] Preferably, the stirring temperature of the stirring modification treatment is 55-60° C., the stirring speed is 450-550 r / min, and the stirring time is 1 h.

[0020] Preferably, the formulation comprises the following raw materials in parts by weight:

[0021] 4~6 parts of vermiculite powder, 1~2 parts of calcium stearate, 6~10 parts of dopamine hydrochloride solution, 3~5 parts of hydroxyapatite and 2~3 parts of calcium sulfate whiskers.

[0022] Preferably, the mass fraction of the dopamine hydrochloride solution is 2-5%.

[0023] Preferably, the preparation method of the modified functional agent is:

[0024] S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 350-400w for 1h to obtain irradiated nano-silicon carbide;

[0025] S102: stirring the irradiated nano-silicon carbide and nano-calcium carbonate liquids at a weight ratio of 2:5 at a stirring speed of 550-650 r / min for 1 hour, filtering and drying after the stirring is completed to obtain a modified functional agent;

[0026] The nano calcium carbonate solution comprises 4 to 6 parts by weight of nano calcium carbonate, 1 to 3 parts of silane coupling agent KH550, 2 to 5 parts of sodium alginate solution and 1 to 3 parts of cerium nitrate solution.

[0027] Preferably, the mass fraction of the sodium alginate solution is 2-5%; the mass fraction of the cerium nitrate solution is 3-6%.

[0028] The present invention also provides a method for preparing a large amount of water-soluble fertilizer based on livestock and poultry breeding wastewater, comprising the following steps:

[0029] The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

[0030] The base liquid contains a large number of nutrients needed by crops, which can meet the comprehensive nutritional needs of crops, improve the soil's ability to retain water and fertilizer, and fully activate the soil. The base liquid contains humic acid, which can stimulate the cell division and growth of crops, increase the chlorophyll content, and improve the photosynthesis efficiency, making the crops grow more vigorously, the fruits fuller, and the quality better.

[0031] Water-soluble fertilizers containing amide nitrogen can provide the nitrogen needed by crops, improve the utilization efficiency of nitrogen fertilizers, promote crop growth, reduce nitrogen losses, improve the nitrogen nutritional status of crops, and are environmentally friendly and have good economic benefits.

[0032] Potassium polymetaphosphate contains two important nutrients, phosphorus and potassium. Potassium polymetaphosphate can provide plants with necessary nutrients and promote their healthy growth. Since potassium polymetaphosphate has stable chemical properties and is not easily adsorbed and fixed by the soil, it can provide nutrients to the soil for a long time. At the same time, potassium polymetaphosphate can also neutralize the pH of the soil, improve the structure and aeration of the soil, increase the water retention capacity of the soil, and improve soil fertility and yield. The phosphorus and potassium elements in potassium polymetaphosphate can enhance the disease resistance and insect resistance of plants, thereby reducing the occurrence of diseases and pests in crop growth. In addition, potassium polymetaphosphate can also promote the formation of epidermal cells of plants, increase the stress resistance of crops, and improve their yield and quality. Due to its good chelating function, potassium polymetaphosphate can effectively increase the concentration of effective phosphorus in the soil when applied to the soil, reduce the fixation of phosphorus by the soil, and improve the utilization efficiency of phosphorus. In summary, potassium polymetaphosphate plays an important role in providing plant nutrition, promoting crop growth, improving soil, preventing diseases and pests, and improving crop stress resistance. It is one of the indispensable fertilizers in modern agricultural production.

[0033] Boron can promote the movement of compounds in crop plants, balance the distribution of organic matter in plants, ensure the supply of organic matter to various organs of crops and the normal growth of plants. Boron can regulate the synthesis and movement of organic acids in crop plant cells, improve plant cell activity, ensure normal cell elongation and division, and ensure the normal growth of roots and new shoots. Boron has a promoting effect on the reproductive growth of crop plants. When the boron content of plants is appropriate, it can ensure the robustness of flower organs, ensure the fullness and reproductive capacity of seeds, and increase the fruit setting rate.

[0034] Boron is involved in many physiological activities in crop plants and can improve the crops' ability to resist drought, cold, and diseases and pests. Boron has a special effect on the fertilization process. Its content in pollen is highest in the stigma and ovary, which can stimulate pollen germination and pollen tube elongation, allowing pollination to proceed smoothly. Under the influence of boron, cotton flowers increase before frost, and the seed cotton yield and fiber quality are improved. Boron has the function of controlling water in crops, which can increase the viscosity of crop protoplasm and enhance the ability of colloids to bind water, thereby enhancing the crops' drought and disease resistance. Timely supplementation of boron trace elements can promote the formation of plant vitamin C. The increase of vitamin C can enhance the stress resistance of crops. In summary, boron plays an important role in the growth and development, reproductive process, stress resistance and quality formation of crops.

[0035] Trace element copper, copper is one of the trace nutrients necessary for plant growth and development. It plays an important role in plants and is involved in the formation of a variety of proteins and enzymes. These enzymes are closely related to the normal metabolism and stress resistance of plants. Copper is involved in the photosynthetic electron transfer process. It is a component of plastocyanin in chloroplasts and an activator of certain enzymes in the chlorophyll formation process. An appropriate amount of copper ions can promote plant photosynthesis. Copper also promotes the development of floral organs and is an important component of superoxidase (SOD). In agriculture, copper is also used as a fungicide, which has a preventive and curative effect on fungal and bacterial diseases.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The macro-element water-soluble fertilizer of the present invention uses the base liquid obtained by concentrated treatment of aquaculture waste liquid as the base, and is blended by adding amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, and trace element copper raw materials, and the raw materials are coordinated and coordinated, and the filler and modified functional agent of doped modified carbon nanotubes are added as a blending agent. Through the synergistic effect of the two, the obtained water-soluble fertilizer product has obvious effects on improving the disease resistance, seed cotton yield and fiber quality of cotton crops, and improves the growth quality of plants. At the same time, the product has a significant effect on improving the quality of cotton under drought and saline-alkali conditions;

[0038] 2. The filler of doped modified carbon nanotubes adopts carbon nanotubes and stirs them evenly in a sufficient amount of potassium permanganate solution with a mass fraction of 5-8% to optimize the activity efficiency of the carbon nanotubes. At the same time, after the modified additives are improved, the synergistic effect of the carbon nanotubes and the modified additives is optimized. The modified additives are prepared by mixing the first modifier and the second modifier. The wollastonite, sodium silicate solution and sodium dodecylbenzene sulfonate solution in the first modifier are evenly blended and blended. At the same time, the pretreated volcanic rock, magnesium oxide and 5% sodium lignin sulfonate solution are blended to prepare the second modifier. The modified additives obtained by the coordination of the first modifier and the second modifier are used to improve the carbon nanotubes. Through the high specific surface area structure of the carbon nanotubes, the structural raw materials such as wollastonite and volcanic rock are coordinated and reinforced into the system, so as to further enhance the product's improvement on cotton crop disease resistance, seed cotton yield and fiber quality, improve the growth quality of the plant, and further enhance the product's effect on cotton quality under drought and saline-alkali conditions;

[0039] 3. The carbon nanotube modifier is improved through coordination with the preparation liquid. The preparation liquid is a blend of vermiculite powder, calcium stearate, dopamine hydrochloride solution, hydroxyapatite and calcium sulfate whiskers. The synergistic effect of the preparation liquid on the carbon nanotube modifier is enhanced through the coordination between the raw materials, the vermiculite powder, hydroxyapatite and calcium sulfate whiskers, so that the performance of the product is further improved, and the performance effect of the product is further optimized;

[0040] 4. The modified functional agent adopts nano silicon carbide powder, which is irradiated with protons to stimulate its active efficiency, and then improved by stirring with nano calcium carbonate liquid. The nano calcium carbonate liquid is blended and coordinated with nano calcium carbonate, silane coupling agent KH550, sodium alginate solution and cerium nitrate solution. Through the synergistic effect of the co-formulation between the raw materials and the improvement of the blending between the raw materials, nano silicon carbide powder is assisted by raw materials such as nano calcium carbonate, so that the coordinated effect of the modified functional agent and the filler of the modified carbon nanotubes is further strengthened, the performance effect of the product is more excellent, and the performance effect of the product is further enhanced. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] A macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment includes the following raw materials in parts by weight:

[0043] The base liquid for concentrated aquaculture waste liquid treatment is 50-60 parts, amide nitrogen is 17-20 parts, potassium polymetaphosphate is 20-25 parts, phosphorus is 17-20 parts, potassium oxide is 17-20 parts, trace element boron is 0.5-1 parts, trace element copper is 0.5-1 parts and solvent water is 60-65 parts.

[0044] The macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater of this embodiment includes the following raw materials in parts by weight:

[0045] 55 parts of base liquid for concentrated treatment of aquaculture waste liquid, 18.5 parts of amide nitrogen, 22.5 parts of potassium polymetaphosphate, 18.5 parts of phosphorus, 18.5 parts of potassium oxide, 0.75 parts of trace element boron, 0.75 parts of trace element copper and 62 parts of solvent water.

[0046] The phosphorus element of this embodiment is provided by monoammonium phosphate; the amide nitrogen is provided by urea; the base liquid for the concentrated treatment of aquaculture waste liquid includes the following raw materials in parts by weight:

[0047] 20-25 parts of humic acid, 2-4 parts of L-cysteine, 2-5 parts of calcium nitrate, 2-5 parts of magnesium nitrate and 10-15 parts of 5% chitosan solution.

[0048] The water-soluble fertilizer of this embodiment also contains 8 to 12 parts of filler doped with modified carbon nanotubes and 5 to 8 parts of modified functional agent;

[0049] The preparation method of the filler of doped modified carbon nanotubes is as follows:

[0050] S01: preparing a silicic acid solution with a mass fraction of 5-8% and a sodium dodecylbenzene sulfonate solution with a mass fraction of 2-5%; uniformly mixing 2-5 parts of wollastonite, 1-3 parts of the sodium silicate solution and 3-5 parts of the sodium dodecylbenzene sulfonate solution to obtain a first modifier;

[0051] S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 4-6 parts of the pretreated volcanic rock and 3-5 parts of magnesium oxide to 5-8 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier;

[0052] S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive;

[0053] S04: The carbon nanotubes are uniformly stirred in a sufficient amount of a potassium permanganate solution with a mass fraction of 5-8%, and then washed with water, filtered and dried. The dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:5. After the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube modifier.

[0054] S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of (5-7):3 and ball-milled at a speed of 1000-1500 r / min for 2 hours. After the ball milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

[0055] The stirring temperature of the stirring modification treatment in this embodiment is 55-60° C., the stirring speed is 450-550 r / min, and the stirring time is 1 h.

[0056] The preparation liquid of this embodiment includes the following raw materials in parts by weight:

[0057] 4~6 parts of vermiculite powder, 1~2 parts of calcium stearate, 6~10 parts of dopamine hydrochloride solution, 3~5 parts of hydroxyapatite and 2~3 parts of calcium sulfate whiskers.

[0058] The mass fraction of the dopamine hydrochloride solution in this embodiment is 2-5%.

[0059] The preparation method of the modified functional agent of this embodiment is:

[0060] S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 350-400w for 1h to obtain irradiated nano-silicon carbide;

[0061] S102: stirring the irradiated nano-silicon carbide and nano-calcium carbonate liquids at a weight ratio of 2:5 at a stirring speed of 550-650 r / min for 1 hour, filtering and drying after the stirring is completed to obtain a modified functional agent;

[0062] The nano calcium carbonate solution comprises 4 to 6 parts by weight of nano calcium carbonate, 1 to 3 parts of silane coupling agent KH550, 2 to 5 parts of sodium alginate solution and 1 to 3 parts of cerium nitrate solution.

[0063] The mass fraction of the sodium alginate solution in this embodiment is 2-5%; the mass fraction of the cerium nitrate solution is 3-6%.

[0064] A method for preparing a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment comprises the following steps:

[0065] The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

[0066] Example 1.

[0067] A macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment includes the following raw materials in parts by weight:

[0068] 50 parts of base liquid for concentrated treatment of aquaculture waste liquid, 17 parts of amide nitrogen, 20 parts of potassium polymetaphosphate, 17 parts of phosphorus, 17 parts of potassium oxide, 0.5 parts of trace element boron, 0.5 parts of trace element copper and 60 parts of solvent water.

[0069] The phosphorus element of this embodiment is provided by monoammonium phosphate; the amide nitrogen is provided by urea; the base liquid for the concentrated treatment of aquaculture waste liquid includes the following raw materials in parts by weight:

[0070] 20 parts of humic acid, 2 parts of L-cysteine, 2 parts of calcium nitrate, 2 parts of magnesium nitrate and 10 parts of 5% chitosan solution.

[0071] The water-soluble fertilizer of this embodiment also contains 8 parts of filler doped with modified carbon nanotubes and 5 parts of modified functional agent;

[0072] The preparation method of the filler of doped modified carbon nanotubes is as follows:

[0073] S01: prepare a 5% by mass silicate solution and a 2% by mass sodium dodecylbenzene sulfonate solution; evenly blend 2 parts of wollastonite, 1 part of sodium silicate solution and 3 parts of sodium dodecylbenzene sulfonate solution to obtain a first modifier;

[0074] S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 4 parts of the pretreated volcanic rock and 3 parts of magnesium oxide to 5 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier;

[0075] S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive;

[0076] S04: The carbon nanotubes are uniformly stirred in a sufficient amount of 5% by mass potassium permanganate solution, then washed with water, filtered and dried, and the dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:5. After the stirring is completed, the carbon nanotube modifier is filtered and dried to obtain a carbon nanotube modifier;

[0077] S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling speed of 1000 / min for 2 hours. After the ball-milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

[0078] The stirring temperature of the stirring modification treatment in this embodiment is 55° C., the stirring speed is 450 r / min, and the stirring time is 1 h.

[0079] The preparation liquid of this embodiment includes the following raw materials in parts by weight:

[0080] 4 parts of vermiculite powder, 1 part of calcium stearate, 6 parts of dopamine hydrochloride solution, 3 parts of hydroxyapatite and 2 parts of calcium sulfate whiskers.

[0081] The mass fraction of the dopamine hydrochloride solution in this embodiment is 2%.

[0082] The preparation method of the modified functional agent of this embodiment is:

[0083] S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 350W for 1 hour to obtain irradiated nano-silicon carbide;

[0084] S102: The irradiated nano-silicon carbide and nano-calcium carbonate liquids are stirred at a weight ratio of 2:5 at a stirring speed of 550 r / min for 1 hour. After the stirring is completed, the mixture is filtered and dried to obtain a modified functional agent;

[0085] The nano calcium carbonate solution comprises 4 parts by weight of nano calcium carbonate, 1 part of silane coupling agent KH550, 2 parts of sodium alginate solution and 1 part of cerium nitrate solution.

[0086] The mass fraction of the sodium alginate solution in this embodiment is 2%; the mass fraction of the cerium nitrate solution is 3%.

[0087] A method for preparing a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment comprises the following steps:

[0088] The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

[0089] Example 2.

[0090] A macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment includes the following raw materials in parts by weight:

[0091] 55 parts of base liquid for concentrated treatment of aquaculture waste liquid, 18.5 parts of amide nitrogen, 22.5 parts of potassium polymetaphosphate, 18.5 parts of phosphorus, 18.5 parts of potassium oxide, 0.75 parts of trace element boron, 0.75 parts of trace element copper and 62 parts of solvent water.

[0092] The phosphorus element of this embodiment is provided by monoammonium phosphate; the amide nitrogen is provided by urea; the base liquid for the concentrated treatment of aquaculture waste liquid includes the following raw materials in parts by weight:

[0093] 22.5 parts of humic acid, 3 parts of L-cysteine, 3.5 parts of calcium nitrate, 3.5 parts of magnesium nitrate and 12.5 parts of 5% chitosan solution.

[0094] The water-soluble fertilizer of this embodiment also contains 10 parts of filler doped with modified carbon nanotubes and 6.5 parts of modified functional agent;

[0095] The preparation method of the filler of doped modified carbon nanotubes is as follows:

[0096] S01: preparing a 6.5% by mass silicate solution and a 3.5% by mass sodium dodecylbenzene sulfonate solution; uniformly blending 3.5 parts of wollastonite, 2 parts of sodium silicate solution and 4 parts of sodium dodecylbenzene sulfonate solution to obtain a first modifier;

[0097] S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 5 parts of the pretreated volcanic rock and 4 parts of magnesium oxide to 6.5 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier;

[0098] S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive;

[0099] S04: The carbon nanotubes are uniformly stirred in a sufficient amount of a 6.5% by mass potassium permanganate solution, then washed with water, filtered and dried, and the dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:5. After the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube modifier;

[0100] S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of 6:3 and ball-milled at a speed of 1250 r / min for 2 h. After the ball-milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

[0101] The stirring temperature of the stirring modification treatment in this embodiment is 57.5° C., the stirring speed is 500 r / min, and the stirring time is 1 h.

[0102] The preparation liquid of this embodiment includes the following raw materials in parts by weight:

[0103] 5 parts of vermiculite powder, 1.5 parts of calcium stearate, 8 parts of dopamine hydrochloride solution, 4 parts of hydroxyapatite and 2.5 parts of calcium sulfate whiskers.

[0104] The mass fraction of the dopamine hydrochloride solution in this embodiment is 3.5%.

[0105] The preparation method of the modified functional agent of this embodiment is:

[0106] S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 3750w for 1h to obtain irradiated nano-silicon carbide;

[0107] S102: The irradiated nano-silicon carbide and nano-calcium carbonate liquids are stirred at a weight ratio of 2:5 at a stirring speed of 600 r / min for 1 hour. After the stirring is completed, the mixture is filtered and dried to obtain a modified functional agent;

[0108] The nano calcium carbonate solution comprises 5 parts by weight of nano calcium carbonate, 2 parts of silane coupling agent KH550, 3.5 parts of sodium alginate solution and 2 parts of cerium nitrate solution.

[0109] The mass fraction of the sodium alginate solution in this embodiment is 3.5%; the mass fraction of the cerium nitrate solution is 4.5%.

[0110] A method for preparing a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment comprises the following steps:

[0111] The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

[0112] Example 3.

[0113] A macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment includes the following raw materials in parts by weight:

[0114] 55 parts of base liquid for concentrated treatment of aquaculture waste liquid, 18.5 parts of amide nitrogen, 22.5 parts of potassium polymetaphosphate, 18.5 parts of phosphorus, 18.5 parts of potassium oxide, 0.75 parts of trace element boron, 0.75 parts of trace element copper and 62 parts of solvent water.

[0115] The phosphorus element of this embodiment is provided by monoammonium phosphate; the amide nitrogen is provided by urea; the base liquid for the concentrated treatment of aquaculture waste liquid includes the following raw materials in parts by weight:

[0116] 22.5 parts of humic acid, 3 parts of L-cysteine, 3.5 parts of calcium nitrate, 3.5 parts of magnesium nitrate and 12.5 parts of 5% chitosan solution.

[0117] The water-soluble fertilizer of this embodiment also contains 10 parts of filler doped with modified carbon nanotubes and 6.5 parts of modified functional agent;

[0118] The preparation method of the filler of doped modified carbon nanotubes is as follows:

[0119] S01: preparing a 6.5% by mass silicate solution and a 3.5% by mass sodium dodecylbenzene sulfonate solution; uniformly blending 3.5 parts of wollastonite, 2 parts of sodium silicate solution and 4 parts of sodium dodecylbenzene sulfonate solution to obtain a first modifier;

[0120] S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 5 parts of the pretreated volcanic rock and 4 parts of magnesium oxide to 6.5 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier;

[0121] S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive;

[0122] S04: The carbon nanotubes are uniformly stirred in a sufficient amount of a 6.5% by mass potassium permanganate solution, then washed with water, filtered and dried, and the dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:5. After the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube modifier;

[0123] S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of 6:3 and ball-milled at a speed of 1250 r / min for 2 h. After the ball-milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

[0124] The stirring temperature of the stirring modification treatment in this embodiment is 57.5° C., the stirring speed is 500 r / min, and the stirring time is 1 h.

[0125] The preparation liquid of this embodiment includes the following raw materials in parts by weight:

[0126] 5 parts of vermiculite powder, 1.5 parts of calcium stearate, 8 parts of dopamine hydrochloride solution, 4 parts of hydroxyapatite and 2.5 parts of calcium sulfate whiskers.

[0127] The mass fraction of the dopamine hydrochloride solution in this embodiment is 3.5%.

[0128] The preparation method of the modified functional agent of this embodiment is:

[0129] S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 375W for 1 hour to obtain irradiated nano-silicon carbide;

[0130] S102: The irradiated nano-silicon carbide and nano-calcium carbonate liquids are stirred at a weight ratio of 2:5 at a stirring speed of 600 r / min for 1 hour. After the stirring is completed, the mixture is filtered and dried to obtain a modified functional agent;

[0131] The nano calcium carbonate solution comprises 5 parts by weight of nano calcium carbonate, 2 parts of silane coupling agent KH550, 3.5 parts of sodium alginate solution and 2 parts of cerium nitrate solution.

[0132] The mass fraction of the sodium alginate solution in this embodiment is 3.5%; the mass fraction of the cerium nitrate solution is 4.5%.

[0133] A method for preparing a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater in this embodiment comprises the following steps:

[0134] The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

[0135] Comparative Example 1.

[0136] The difference from Example 3 is that no filler for doped and modified carbon nanotubes is added.

[0137] Comparative Example 2.

[0138] The difference from Example 3 is that no carbon nanotube modifier is added in the preparation of the filler doped with modified carbon nanotubes.

[0139] Comparative Example 3.

[0140] The difference from Example 3 is that no modifying additive is added in the preparation of the carbon nanotube modifier.

[0141] Comparative Example 4.

[0142] The difference from Example 3 is that the first modifier is not added to the modifying additive.

[0143] Comparative Example 5.

[0144] The difference from Example 3 is that wollastonite and sodium silicate solution are not added to the first modifier.

[0145] Comparative Example 6.

[0146] The difference from Example 3 is that no second modifier is added to the modifying additive.

[0147] Comparative Example 7.

[0148] The difference from Example 3 is that no pretreated volcanic rock or magnesium oxide is added to the second modifier.

[0149] Comparative Example 8.

[0150] The difference from Example 3 is that no mixing liquid is added in the preparation of the filler of doped modified carbon nanotubes.

[0151] Comparative Example 9.

[0152] The difference from Example 3 is that no modifying functional agent is added.

[0153] Comparative Example 10.

[0154] The difference from Example 3 is that no irradiated nano-silicon carbide is added to the modified functional agent.

[0155] Comparative Example 11.

[0156] The difference from Example 3 is that no nano calcium carbonate liquid is added to the modified functional agent.

[0157] Comparative Example 12.

[0158] The difference from Example 3 is that no nano calcium carbonate and cerium nitrate solution are added to the nano calcium carbonate solution.

[0159] The test site was conducted in Chengdu, Sichuan, and cotton planting was used for testing. In the experiment, the products of Examples 1-3 and Comparative Examples 1-12 were used for fertilization, ensuring that the fertilizer content of the experimental products was the same, and 100 kg of fertilizer was applied per mu; the products of Examples 1-3 and Comparative Examples 1-12 were tested for performance, and the diseased plant rate of cotton crop wilt = the number of diseased plants / total number of plants × 100 (the total number of plants tested was 1000 plants); the test results are as follows:

[0160]

[0161] It can be seen from Comparative Examples 1 to 12 and Examples 1 to 3 that;

[0162] In the test implementation of the product of Example 3, the cotton has excellent disease resistance, and the seed cotton yield and cotton fiber specific strength performance are excellent. The three can be coordinated and improved. The diseased plant rate can be as low as 0.3%, the seed cotton yield is as high as 511kg / mu, and the cotton fiber specific strength reaches 35.4cN / tex;

[0163] The test site was set up in the drought and saline-alkali land of Inner Mongolia. The saline-alkali land had a salt content of 0.5%. The test method was consistent with the experiment in Chengdu to test the cotton planting performance under drought and saline-alkali conditions.

[0164]

[0165] It can be seen from Comparative Examples 1 to 12 and Example 3 that the product of Example 3 still maintains excellent disease resistance in drought and saline-alkali conditions, and the seed cotton yield and cotton fiber specific strength performance stability are excellent;

[0166] The product does not contain fillers of doped and modified carbon nanotubes and does not contain modified functional agents, so the performance of the product deteriorates significantly. The synergistic effect of the two is the most significant.

[0167] In the preparation of the filler for doped and modified carbon nanotubes, no carbon nanotube modifier is added, no modifying additive is added, no first modifier is added to the modifying additive, no wollastonite and sodium silicate solution are added to the first modifier, no second modifier is added to the modifying additive, no pretreated volcanic rock and magnesium oxide are added to the second modifier, and no mixing liquid is added in the preparation of the filler for doped and modified carbon nanotubes. The performance of the products all tends to deteriorate to varying degrees. The carbon nanotube modifier prepared by using the modifying additive prepared by the specific method of the present invention, and the filler for doped and modified carbon nanotubes obtained by mixing with the mixing liquid, have the most significant performance effect, and other methods are not as obvious as the effect of the present invention; and the inventors of the present invention also found that when no mixing liquid is added in the preparation of the filler for doped and modified carbon nanotubes, the performance of the product also shows a relatively obvious deterioration trend.

[0168] When no irradiated nano silicon carbide is added to the modified functional agent, no nano calcium carbonate liquid is added to the modified functional agent, and no nano calcium carbonate and cerium nitrate solution are added to the nano calcium carbonate liquid, the performance of the product tends to deteriorate. The modified functional agent obtained by the specific method of the present invention has the most significant performance effect of the product.

[0169] Based on the above tests, the present invention further explores the product performance by formulating the liquid;

[0170] Experimental example 1.

[0171] The same as Example 3, the only difference is that no vermiculite powder is added to the prepared liquid.

[0172] Experimental example 2.

[0173] The same as Example 3, except that hydroxyapatite is not added to the prepared solution.

[0174] Experimental Example 3.

[0175] The same as Example 3, the only difference is that calcium stearate is not added to the formulation.

[0176] Experimental Example 4.

[0177] The same as Example 3, the only difference is that no calcium sulfate whiskers are added to the prepared solution.

[0178] Experimental Example 5.

[0179] The same as Example 3, the only difference is that the dopamine hydrochloride solution in the preparation liquid is replaced by water.

[0180] Based on the drought and saline-alkali land test, the performance of Experimental Examples 1-5 is further tested as follows:

[0181]

[0182] It can be seen from Experimental Examples 1-5 that when calcium sulfate whiskers are not added to the prepared liquid, the performance of the product deteriorates significantly. At the same time, when vermiculite powder and hydroxyapatite are not added to the prepared liquid, the performance of the product has a significant deterioration trend. In addition, when dopamine hydrochloride solution in the prepared liquid is replaced by water and calcium stearate is not added to the prepared liquid, the performance of the product has a deterioration trend. The preparation of the prepared liquid of the present invention is unique. The prepared liquid obtained by the specific method of the present invention has the most obvious product performance effect. The effects of other methods are not as significant as those of the present invention.

[0183] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0184] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater, characterized in that: It includes the following raw materials in parts by weight: The base liquid for concentrated aquaculture waste liquid treatment is 50-60 parts, amide nitrogen is 17-20 parts, potassium polymetaphosphate is 20-25 parts, phosphorus is 17-20 parts, potassium oxide is 17-20 parts, trace element boron is 0.5-1 parts, trace element copper is 0.5-1 parts and solvent water is 60-65 parts.

2. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 1, characterized in that: The macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater comprises the following raw materials in parts by weight: 55 parts of base liquid for concentrated treatment of aquaculture waste liquid, 18.5 parts of amide nitrogen, 22.5 parts of potassium polymetaphosphate, 18.5 parts of phosphorus, 18.5 parts of potassium oxide, 0.75 parts of trace element boron, 0.75 parts of trace element copper and 62 parts of solvent water.

3. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 1, characterized in that: The phosphorus element is provided by monoammonium phosphate; the amide nitrogen is provided by urea; the base liquid for concentrated treatment of aquaculture waste liquid includes the following raw materials in parts by weight: 20-25 parts of humic acid, 2-4 parts of L-cysteine, 2-5 parts of calcium nitrate, 2-5 parts of magnesium nitrate and 10-15 parts of 5% chitosan solution.

4. The water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 1, characterized in that: The water-soluble fertilizer is further added with 8 to 12 parts of a filler of doped modified carbon nanotubes and 5 to 8 parts of a modified functional agent; The preparation method of the filler of doped modified carbon nanotubes is as follows: S01: preparing a sodium silicate solution with a mass fraction of 5-8% and a sodium dodecylbenzene sulfonate solution with a mass fraction of 2-5%; uniformly mixing 2-5 parts of wollastonite, 1-3 parts of the sodium silicate solution and 3-5 parts of the sodium dodecylbenzene sulfonate solution to obtain a first modifier; S02: treating the volcanic rock with a sufficient amount of 5% by mass hydrochloric acid solution, then washing, filtering, and drying to obtain pretreated volcanic rock; adding 4-6 parts of the pretreated volcanic rock and 3-5 parts of magnesium oxide to 5-8 parts of 5% by mass sodium lignin sulfonate solution and stirring to obtain a second modifier; S03: The first modifier and the second modifier are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h to obtain a modified additive; S04: The carbon nanotubes are uniformly stirred in a sufficient amount of a potassium permanganate solution with a mass fraction of 5-8%, and then washed with water, filtered and dried. The dried carbon nanotubes and the modified additive are stirred and modified in a weight ratio of 2:

5. After the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube modifier. S05: The carbon nanotube modifier and the formulation liquid are mixed in a weight ratio of (5-7):3 and ball-milled at a speed of 1000-1500 r / min for 2 hours. After the ball milling is completed, the mixture is washed with water, filtered and dried to obtain a filler doped with modified carbon nanotubes.

5. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 4, characterized in that: The stirring temperature of the stirring modification treatment is 55-60° C., the stirring speed is 450-550 r / min, and the stirring time is 1 hour.

6. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 4, characterized in that: The formulation comprises the following raw materials in parts by weight: 4~6 parts of vermiculite powder, 1~2 parts of calcium stearate, 6~10 parts of dopamine hydrochloride solution, 3~5 parts of hydroxyapatite and 2~3 parts of calcium sulfate whiskers.

7. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 6, characterized in that: The mass fraction of the dopamine hydrochloride solution is 2-5%.

8. The water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 4, characterized in that: The preparation method of the modified functional agent is: S101: irradiating the nano-silicon carbide powder in a proton irradiation box at an irradiation power of 350-400w for 1h to obtain irradiated nano-silicon carbide; S102: stirring the irradiated nano-silicon carbide and nano-calcium carbonate liquids at a weight ratio of 2:5 at a stirring speed of 550-650 r / min for 1 hour, filtering and drying after the stirring is completed to obtain a modified functional agent; The nano calcium carbonate solution comprises 4 to 6 parts by weight of nano calcium carbonate, 1 to 3 parts of silane coupling agent KH550, 2 to 5 parts of sodium alginate solution and 1 to 3 parts of cerium nitrate solution.

9. A water-soluble fertilizer of a large number of elements based on livestock and poultry breeding wastewater according to claim 8, characterized in that: The mass fraction of the sodium alginate solution is 2-5%; the mass fraction of the cerium nitrate solution is 3-6%.

10. A method for preparing a macro-element water-soluble fertilizer based on livestock and poultry breeding wastewater according to any one of claims 1 to 9, characterized in that: The following steps are involved: The base liquid for concentrated aquaculture waste liquid treatment, amide nitrogen, potassium polymetaphosphate, phosphorus, potassium oxide, trace element boron, trace element copper and solvent water are weighed according to weight parts, and then the raw materials are evenly mixed to obtain the macro-element water-soluble fertilizer of the present invention.

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