1648 results about "Rice straw" patented technology

One aspect of the invention relates to a process, comprising treating lignocellulosic biomass according to a first pretreatment protocol, thereby generating a first product mixture; separating the first product mixture into a first plurality of fractions; and treating at least one fraction of said first plurality of fractions according to a second pretreatment protocol, thereby generating a second product mixture. In one embodiment, the lignocellulosic biomass is selected from the group consisting of grass, switch grass, cord grass, rye grass, reed canary grass, miscanthus, sugar-processing residues, sugarcane bagasse, agricultural wastes, rice straw, rice hulls, barley straw, corn cobs, cereal straw, wheat straw, canola straw, oat straw, oat hulls, corn fiber, stover, soybean stover, corn stover, forestry wastes, recycled wood pulp protocol protocol fiber, paper sludge, sawdust, hardwood, softwood, and combinations thereof.

The invention provides a soil improvement type straw compound organic fertilizer and a preparation method of the soil improvement type straw compound organic fertilizer. The soil improvement type straw compound organic fertilizer is prepared from the following raw materials in parts by weight: 30 to 35 parts of rice straw, 25 to 30 parts of animal excrement, 20 to 25 parts of biological charcoal, 10 to 15 parts of soybean meal, 5 to 10 parts of cassava residue, 5 to 10 parts of diatom ooze, 2 to 2.5 parts of plant ash, 2 to 2.5 parts of turfy soil, 2 to 3 parts of zeolite powder, 3 to 4 parts of a microorganism bacterium agent, 2 to 3 parts of sodium benzoate, 2 to 3 parts of ammonium monohydrogen phosphate, 1 to 2 parts of calcium chloride, 1 to 2 parts of amino acid, 1 to 2 parts of starch, 1 to 2 parts of molasses powder and 1 to 2 parts of humic acid. The soil improvement type straw compound organic fertilizer takes plant wastes as raw materials; the quality of soil can be easily improved and the production cost can also be reduced, so that the physicochemical properties of the soil are improved, and the structure of the soil is comprehensively improved, and furthermore, the soil quality has the effects of softness, air permeability, water retention and fertilizer conservation; the aim of producing an environment-friendly high-quality organic fertilizer through preferably selecting heavy metal capable of being passivated, the biological charcoal capable of improving the fertilizer efficiency of the organic fertilizer, and conversion products of organic wastes including the biological humic acid and the like as composting base materials, and optimizing a composting process.

The invention discloses a method for cultivating tea comprising the steps of, tea plantation sun screening, planting deciduous arbor around the tea plantation and between the tea trees, covering the tea plantation through rice straw and planting bean green manure, applying special-purpose fertilizer for organic tea, inoculating beneficial soil organisms and soil creatures including right amount of earthworm, finally carrying out irrigation through mini- sprinkling irrigation system in high temperature dry seasons.

The invention belongs to the field of material science and energy storage and discloses a biomass-based porous carbon material, a preparation method thereof, and an application thereof in a supercapacitor. The method includes the steps of: 1) drying and crushing rice straws; 2) non-carbonizing or pre-carbonizing the crushed rice straws, uniformly mixing the rice straws with an activator water solution and drying the mixture, or non-carbonizing or pre-carbonizing the crushed rice straws and directly mixing the rice straws with a solid activator uniformly to produce a mixed product; and 3) placing the mixed product in a tube furnace to perform carbonizing activation in an inert gas atmosphere at high temperature; 4) washing the carbonized product in an acid solution and an alkali solution, and washing the carbonized product with deionized water to neutral, and drying the washed product to prepare the biomass-based porous carbon material. The porous carbon material has excellent supercapacitor performance and is simple in preparation method.

The present invention relates to bispore mushroom cultivating technology, and is especially one kind of bispore mushroom cultivating medium and its application. The cultivating medium consists of grass material 45í½55 wt%, dung material 35í½45 wt%, cake fertilizer 1í½8 wt%, urine 0.5í½1.0 wt%, gypsum powder 0.5í½1.5 wt%, calcium superphosphate 0.8í½1.5 wt%, lime powder 0.2í½1.5 wt%, calcium carbonate 0í½2.0 wt% and dichlorovos 0í½0.5 wt%. The grass material including rice straw, wheat straw, cotton seed husk, corn cob and corn stalk, and the dung material including cow dung, house dung and chicken dung account for at least 90 wt%. The cake fertilizer may be soybean cake, soybean powder, cotton seed cake and/or corn powder. The cultivating medium is used for cultivating bispore mushroom in tall stalk crop field and has biological conversion efficiency over 60 % and bispore mushroom yield over 25 kg/sq m.

The invention discloses a pleurotus geesteranus medium and a preparation method thereof. The recipe of the medium comprises (by weight) 60-75% of cotton seed hull or wheat straw or rice straw or corn cob, 7-15% of weed tree sawdust, 8-15% of wheat bran or rice bran, 3-8% of corn flour, 0.5-1.5% of sucrose, 1-1.5% of dried gypsum, 2-2.5% of quicklime, 0.1-0.3% of potassium dihydrogen phosphate and 0.1-0.2% of magnesium sulfate. The preparation method of the medium comprises the following steps: dissolving the quicklime, the dried gypsum, the potassium dihydrogen phosphate and the magnesium sulfate into water; adding the cotton seed hull or the wheat straw or the rice straw or the corn cob and the weed tree sawdust for prewetting; then adding the rice bran, the corn flour, the wheat bran and the sucrose and mixing evenly; and returning the medium having been used for planting the pleurotus geesteranus to field and soil in situ. The technical scheme can cause the pleurotus geesteranus to grow better and avoids the defect of no special medium for the growth of the pleurotus geesteranus in the prior art.

The present invention provides a building material derived from straw, such as rice straw, that has significantly improved fire-resistance properties over traditional cellulose-based materials. In one embodiment, the invention provides a method of fabricating a board from milled rice straw. The milled rice straw is blended with a binder to form a mixture. The mixture is then formed into a mat with sufficient size to achieve a predetermined board thickness and density. The mat is then pressed into the board. In another embodiment, the present invention provides a fire resistant board that includes milled rice straw, a resin binder, and a fire retardant material such as an organic phosphate, zinc borate, aluminum trihydrate, sodium silicate, or even rice hulls.

The invention relates to a decomposition maturing agent for degrading straw. The agent comprises active ingredients, such as candida tropicalis, aspergillus oryzae, trichoderma viride and bacillus subtilis. The decomposition maturing agent can rapidly decompose wheat straw, rice straw, grain straw, sweet potato stems, broad bean stems, rape stalks, weeds, leaves and household garbage of which the fibrous matter content is high so as to prepare an organic fertilizer. The decomposition maturing agent has the advantages of short degradation time and capability of effectively killing diseases and pests and providing nutrients for crops.

The invention relates to a rice seedling raising matrix and a production method thereof, and belongs to a seedling raising matrix and a production method thereof. The matrix is prepared by the following formula and method that: the formula comprises 50 to 70 percent of crushed corn stalk of 40 to 60 meshes, 10 to 30 percent of crushed rice straw of 40 to 60 meshes, 5 to 15 percent of farmyard manure of 40 to 60 meshes and 5 to 15 percent of industrial slag powder of 40 to 60 meshes; and the method comprises material preparation, raw material crushing, fermentation, mixing, drying and stirring. The method for producing the seedling raising matrix by using the raw materials such as straws, farmyard manure, slag and the like thoroughly solves the problems of vegetation destroy caused by taking soil for raising seedlings and difficult soil taking, reduces the production processes of taking soil, sieving soil, regulating acid, stirring fertilizers, stirring drugs and the like, and lightens the labor intensity of rice farmers. The method can be applied in rice seedling raising and vegetable and flower seedling raising production, and is a new effective path for making full use of straw resources and realizing energy conservation, emission reduction and agricultural circular economy.

The present invention relates to a paper pulp prepared by using rice straw and wheat straw as raw material. The breaking length of said paper pulp is 4500-8100 km. and its tearing strength is 180-280 mN. Besides, said invention also provides its preparation method and concrete steps.

Provided are a rat-eye bean extract improving blood glucose control and bioactivity, which is produced from rat-eye beans as health food so as to be able to improving storability, portability and potability, and a method of producing the same. The rat-eye bean extract is produced by putting rat-eye beans, which are cleanly washed without foreign materials and are soaked in water for five hours, and water into a steam pot at a volume ratio of 3:1 along with rice straw, fermenting water, which is boiled to steam the rat-eye beans in weak flames for five hours, in a hot-floored room for two to three days, putting the fermented water and a grapefruit juice into the steam pot at a weight ratio of 99:1, and heating a mixture of the fermented water and the grapefruit juice in a closed state at a temperature of 110 to 120° C. for four to five hours.

The invention discloses a composite biological activated carbon and a rapid preparation method thereof, raw materials thereof comprise coconut shell, bamboo, rice hull, sawdust, wheat straw or rice straw, or the raw materials thereof comprise the rice hull, the sawdust, the wheat straw or the rice straw, corn stalk or corn core, the raw materials are smashed to prepare columnar granules, the direct heating method of the spontaneous combustion type granules is adopted for preparing the carbon, a fixed layer is paved at the bottom of a furnace by taking the granules as the raw materials, the fixed layer is ignited by using ignition materials, the feeding is adopted at the upper part of the furnace and the air induction is carried out at the lower part of the furnace for accelerating carbonization of the granules, the air induction is stopped after the carbonization of the granules, the temperature in the furnace is kept at 430-700 DEG C, the spray cooling method is adopted for activatingand cooling the granular carbon, and a finished product is prepared after 20-30 minutes. A plurality of raw materials are mixed, and more pores are naturally formed, thereby expanding the specific surface area of the carbon, greatly increasing effective micropores, leading the absorption performance to be greatly better than the existing activated carbon of single material and reflecting the unique advantages of the composite material.

The invention provides a mixed feed formula for a black goat. The formula comprises the following components: a green fodder including alfalfa, ryegrass, oat grass, mulberry leaves, locust tree leaves and sugarcane top; a coarse fodder including straw, cornstalk and bagasse; a concentrated feed including corn bran, wheat bran, peanut meal, bean cake and rice bran; an animal feed including fish meal, shrimp meal and mealworms powder; a mineral feed including bone meal, shell powder, urea, salt and aginomoto. The feed formula is low in cost, preferred by the black goat, quick for grow, healthy in physique and high in meat factor.

Silicon-containing products, such as silicon, silicon carbide and silicon nitride, containing less than 0.01 weight percent total mineral impurities and selectively determined carbon-to-silicon ratios. The products are derived from plant matter, such as rice hulls and rice straw, containing at least three weight percent silica. Methods are provided for making such high purity silicon-containing products by leaching silica-containing plant matter with aqueous sulfuric acid under controlled temperatures, pressures and reaction times to remove minerals and metals while adjusting the mole ratio of fixed carbon to silica, and then thermally treating under controlled conditions to produce the desired product.

The invention discloses a method for interplanting stropharia rugosannulata in a vineyard. The method comprises the following steps of scarifying soil and drying the soil in the sun before seeding, so that the soil is cured and loosened; seeding at a temperature between 8 DEG C. and 30 DEG C.; soaking straws for 35 6 hours; soaking wheat straws, cornstalks and bean stalks for 48 hours; pre-stacking cultivation materials, wherein the stack width is 2 m, and the stack height is 1.5 m; turning the stacks after three days, and turning the stacks again after another two to three days; seeding when the water content is 75%; first spreading a humus soil layer which is 4-5 cm in thickness when seeding; forming a turtleback ridge-up bed which is 30 cm in height and 1.3 m in width, wherein sidewalks of 40 cm in width are left among the ridges, and a first spreading on the ridges is 8-10 cm in thickness; seeding 50% of strains; not spraying water on the stropharia rugosannulata bed within 20 days after seeding, but spraying on coverings; controlling the temperature of the cultivation materials at 20-30 DEG C.; uncovering films for ventilation when the temperature is higher than 30 DEG C. and spraying water on the coverings for cooling; and covering the ridges with mats or films when the temperature is below 20 DEG C., wherein the relative humidity on the ridge surface is between 90% and 95%; and the preferenpreferencetial temperature for fruiting is 14 to 25 DEG C.

A preparing method of an active-carbon/graphene composite is disclosed. The active-carbon/graphene composite is prepared by uniformly mixing raw materials comprising 45-90% by weight of biomass, 5-50% by mass of carbonitride and 5-10% by mass of a transition-metal-containing compound, heating the material mixture at 300-500 DEG C for 2-5 h to obtain a gray block material with a fluffy structure, and heating the block material in a protective gas atmosphere at 600-900 DEG C for 5-60 min. The biomass is any one or a mixture of straw, saccharose residue, saw dust and rice straw. The method utilizing the biomass for directly synthesizing the active-carbon/graphene composite material is simple. Raw materials are simple and easily available. The obtained active-carbon/graphene composite material has the specific capacitance meeting requirements of electrode materials and is suitable for large-scale production and application.

The invention relates to a light-weight reinforced gypsum plaster board and a preparation method thereof. The light-weight reinforced gypsum plaster board is prepared from the following raw materials in parts by weight: 100 parts of a gypsum clinker, 0.1-1 part of modified starch, 0.01-0.1 part of a foaming agent, 2-10 parts of rice straw fiber powder, 0.1-0.6 part of CMC (carboxyl methy cellulose) powder and 50-100 parts of water. By adding the rice straw fiber powder and the CMC powder, the workability of slurry is improved, the problems of low grade and low strength of desulfurization gypsum are solved, and particularly the rice straw fiber powder has an adsorption effect on Cl, so that the wetting bond quality of the gypsum plaster board is greatly improved; meanwhile, the consumption of the desulfurization gypsum and the foaming agent is reduced, and the strength and bond performance of the board are improved; the prepared gypsum plaster board is good in wetting bond performance, the mass per unit area of a 9.5mm waterproof board is 6.4kg/m<2> which is far superior to a national standard requirement that the mass per unit area is not less than 9.5kg/m<2>; and the average value of the transverse breaking load is 216.5N, the minimum value of the transverse breaking load is 202.6, the average value of the longitudinal breaking load is 448.0N, the minimum value of the longitudinal breaking load is 423.8N, and the strength is far higher than a national standard requirement.

The invention provides a film spreading oiling agent used for preventing and controlling plant diseases and insect pests at a basal part of a rice stem and an application. The film spreading oiling agent comprises insecticidal and sterilization active ingredients and an additive. When the preparation is used, the film spreading oiling agent can be directly poured into a paddy field without dilution by using water. After entering the water, the film spreading oiling agent is distributed and spread as an oil film to spread all over the rice field and climb along a rice straw, and can effectively prevent and control rice stem borer and banded sclerotial blight, thus being a novel pesticide formulation with high working efficiency.

The invention discloses a remediation method for cadmium-contaminated soil, and belongs to the field of soil remediation. In the remediation method, wood vinegar and biochar are prepared from rice straw and/or oilseed rape straw; paddy rice is planted in the cadmium-contaminated soil from May to October of each year firstly, and biochar is applied before paddy rice planting, so that paddy rice conforming to the national standard can be prepared in the cadmium-contaminated soil (to be specific, the cadmium content conforms to the national standard); oilseed rape is planted in the cadmium-contaminated soil from the time after the harvest of the paddy rice to May of next year, and wood vinegar is applied in a specific period to remove cadmium in the cadmium-contaminated soil safely and effectively, so that cadmium in the soil is effectively removed. Moreover, the method effectively utilizes the whole year, thereby guaranteeing the harvest of cereal crops while realizing the remediation of contaminated soil.

The invention provides a no-tillage direct seeding and mulching cultivation method of rice in the technical field of agricultural planting. In the cultivation method, Chinese milk vetch serves as green manure in winter, and is mulched on the ground surface as organic green manure before the seeding of the rice; and all rice straws are returned to the field, and are mulched on the ground surface after the rice is harvested; therefore, the permanent no-tillage of a rice field and the direct seeding of the rice are put into practice, and thus the crop rotation of the rice and the green manure are put into practice. When the method is adopted, the growth and development of soil organisms are improved; the diversity of the soil organisms is enriched; the application of fertilizers is reduced; the widespread pollution of a farming land is reduced; labor and force are saved; the agricultural planting efficiency is improved; and the quality of the rice is improved.

The invention discloses a copper mine waste oxidized ore hillock ecological restoration method. The method comprises the first step of land preparation, the second step of first layer grating laying, the third step of ecological bag slope protection, the fourth step of lime layer spraying, the fifth step of physical isolation layer laying, the sixth step of ecological bar erecting, the seventh step of second layer grating laying, the eighth step of soil matrix improvement layer spraying, the ninth step of seed layer spray-sowing, the tenth step of straw curtain covering and fixing and the eleventh step of water intercepting and drainage facility arranging. By means of the ecological restoration method, acid can be effectively isolated and controlled, and the effect of heavy metal and other pollutants on the surroundings can be controlled from a source.

The invention discloses a processing craft with rice straw or corn or sorghum straw to produce industrial alcohol, which comprises the following steps: pressing the rice straw and straw to brick; disposing with 60Co-gama ray of 0.5-2.0X106Gy or electron-beam accelerator; grinding with mechanical; screening through 200 order sieve; leaching with hot water; stripping lignin with alcohol; degrading enzyme; separating 1-2 mu m cord hole film; synchronous-saccharifying saccharomyces cerevisiae and pichia; dispersing and yeasting; dewatering and separating the alcohol; getting the product.

The invention discloses a method for increasing enzymolysis efficiency of rice straws through choline and amino acid ionic liquid pretreatment, which comprises the following steps: firstly, performing pretreatment on the rice straws at certain temperature for a certain period of time by taking choline and amino acid ionic liquid as a solvent; then filtering and separating to obtain residues; drying the residues to obtain the pretreated rice straws. The residues of the rice straws are used as substrates, and enzymolysis is performed on the substrates by utilizing cellulase and xylanase to finally obtain sugar liquor taking glucose and xylose as main components. The method for increasing the enzymolysis efficiency of the rice straws through the choline and amino acid ionic liquid pretreatment not only is capable of effectively increasing the enzymolysis efficiency of the rice straws and increasing the yield of reducing sugar (the glucose and the xylose) which can be fermented, but also is capable of overcoming the defects that a traditional ionic liquid pretreatment process environment is not friendly and the like.

A process for preparing SiO2 nano-particles from rice husk ash includes such steps as dispersing the rice husk ash in the solution of hydrochloric acid, stirring, filtering to obtain filtered dregs, washing with deionized water, filtering, dispersing the filtered dregs in NaOH solution, boiling, filtering, using boiling water to flush the filtered dregs, collecting filtrate, dripping HCl to become gel, constant-temp drying, and high-energy ball grinding.

A magnesium concrete is composed of the magnesium cement grout prepared from light burnt magnesium oxide, magnesium chloride and water and the modifying filler composed of the phosphogypsum and/or the ash of rice husk, rice straw and wheat straw. It has low cost.

The invention discloses a method for controlling weeds in a tea garden, which comprises the following steps: first, plowing is carried out on the ground between tea plant rows in winter to remove root systems of the weeds such as nutgrass flatsedge, alligator alternanthera, greenbrier, chinaroot greenbrier, cogongrass, smartweed, lygodium and the like; a high-quality organic fertilizer is applied in spring: a certain amount of rape seed cake fertilizer is broadcast; the ground is covered with rice straws in spring: after the rape seed cake fertilizer is broadcast, all tea plant rows in the garden are immediately evenly covered with a certain amount of the rice straws; the high-quality organic fertilizer is applied in summer: a proper amount of the rape seed cake fertilizer is broadcast at a certain time; and the ground is covered with the rice straws in summer: after the rape seed cake fertilizer is broadcast, all tea plant rows are immediately evenly covered with a certain amount of the rice straws. The method enriches biodiversity of the tea garden, improves the ecological condition of the tea garden, increases tea yield, improves the quality of tea leaves; in addition, the method has the advantage of simple operation, is easy to be accepted by tea growers and has great popularization and application prospect.

The invention provides a production method for interplanting stropharia rugoso-annulata in an orchard. The method specifically comprises the steps of selecting soil to construct a cultivation field, wherein the soil is the orchard soil which is meta acid soil and fertile, rich in humus, sufficient in sun exposure, good in draining performance and brings an environment with 30% of sunlight and 70% of shallow; selecting fresh and dried rice straws without molding and rotting as a culture material; soaking the rice straws through lime water for 2 days before seeding; pre-piling to ferment at high temperature weather; spreading the pile to radiate heat; then putting into use for culturing; draining of pre-wetted materials in case of low temperature; pre-piling for 1 days until the materials are soft; transferring on a bed for culturing; the water content of the culture material is kept in 70 to 75%. With the adoption of the method, stropharia rugoso-annulata can be interplanted in the orchard; the method can be used as a main measure for treating the straws; the waste after planting can be directly returned to the field to improve the soil as well as increase the fertility; meanwhile, the land utilization rate can be increased; a good project for increasing both production and income is created for the village.

The invention relates to a multifunctional bio-charcoal and a preparation method thereof. According to the technical scheme, the preparation method comprises the steps of dipping biomass into 1-15wt% caustic alkali solution for 1-50h, washing with water to be neutral, and drying to obtain treated biomass; then charring the treated biomass in a tube furnace in mixed gas at 300-900 DEG for 1-130h to obtain the multifunctional bio-charcoal. The biomass is one of rice straw, wheat straw, sawdust, wood, green grass, fruit peel and animal tissue waste; the biomass contains 30-60wt% of volatile organic carbon of charcoal, 10-40wt% of fixed carbon, 1-30wt% of ash and 10-60wt% of water. The preparation method disclosed by the invention has the characteristics of low production cost, high yield, simple process, controllable production process and environment friendliness, and the prepared multifunctional bio-charcoal has a good adsorption effect on heavy metals and high stability and can be used for repairing water bodies, solid matrixes and soil which are polluted by heavy metals.

The invention provides a fertilizer special for a tea tree. The fertilizer special for the tea tree is prepared from the following raw materials in percentage by weight: 60 to 79 parts of egg chicken manure, 11 to 29 parts of hot pepper dreg, 2 to 5 parts of zeolite powder, 0.05 to 0.1 part of decomposing agent, 50 to 65 parts of furfural dreg and 0.45 to 0.9 part of plant powder, wherein the hotpepper dregs may be any one or more of chrysanthemum dreg, peanut dreg, rapeseed dreg and corn germ dreg; the decomposing agent is Aspergillus oryzae; the granular size of the zeolite powder is 100 to 200 meshes; the plant powder is formed by crushing any one or more of core straw, wheat straw, rice straw, sweet potato rattan, horsebean straw, rape stalk, weed and leaf; and the granular size of the plant powder is 80 to 120 meshes. The fertilizer special for the tea tree has a simple process, is convenient to prepare, inhibits diseases and insect pests, improves soil environment and pH value,increases the nitrogen content of the fertilizer, and contributes to growth of crops.

The invention discloses a plant fiber cement-based block material and a preparation method thereof, which relate to a building block material. The building block material comprises the following components in percentage by weight: 55.7 to 63 percent of cement, 15 to 22.1 percent of medium sand, 10 to 20 percent of fly ash, 4 to 8 percent of plant fibers, 0.6 to 0.8 percent of urea formaldehyde resin adhesive powder, 0.2 to 0.5 percent of early strength agent and the balance of high-efficiency water reducer and water. The preparation method comprises: weighing the components of the block material by weight percentage; adding the weighed rice straw fibers, which are like thin threads, together with the weighed urea formaldehyde resin adhesive powder into a mixer for mixing; adding the weighed cement, medium sand and fly ash into the mixture, continuously mixing the mixture, adding 2/3 of total water and mixing; adding the high-efficiency water reducer, the early strength agent and 1/3 of total water, discharging the materials, filling the materials into a mold for casting, and curing; and obtaining filling blocks for use in a densely-ribbed composite wall structure.