8305 results about "Stover" 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 an organic/inorganic drought resisting compound fertilizer and a preparation method thereof. The preparation method comprises the following special steps of: at first, carrying out harmless treatment on raw materials of an organic fertilizer, such as livestock excrement, crop straws, kitchen garbage, fallen leaves, turf and peat, humic acid and the like, so as to obtain the organic fertilizer; then adding a macromolecule moisture retention material and an inorganic fertilizer at a certain ratio and uniformly stirring; and finally obtaining the organic/inorganic drought resisting compound fertilizer by extruding granulation. The organic/inorganic drought resisting compound fertilizer disclosed by the invention has functions of drought resistance and moisture retention, nutrient slow release and soil fertilization, so that the effects of increasing production and income of the crops are achieved. Furthermore, the organic/inorganic drought resisting compound fertilizer can effectively solve the environment pollution caused by the livestock excrement, straw burning and domestic garbage.

The invention provides an organic fertilizer with livestock and poultry manure and a preparation method thereof. The organic fertilizer comprises cow manure, edible mushroom dregs, pig manure, chicken manure, maize straw powder and an Em (effective microorganisms) stock solution. The specific formula of the organic fertilizer comprises 19.7 percent of edible mushroom dregs, 10 percent of pig manure, 10 percent of chicken manure, 20 percent of maize straw powder, 0.3 percent of Em stock solution, and the balance of cow manure. The preparation method of the organic fertilizer is characterized in that a production technology of the organic fertilizer with the livestock and poultry manure mainly adopts a shallow pool type fermentation technology, namely the cow manure, the pig manure, the chicken manure, the edible mushroom dregs, the maize straw powder and the Em stock solution are poured into a mixer in proportion and are evenly mixed and stirred, the evenly mixed and stirred materials are sent into a shallow layer pool type fermentation pool, and the organic fertilizer fermentation environment temperature is controlled to be above 15 DEG C. Firstly, various raw materials including the livestock and poultry manure, the edible mushroom dregs, the straw powder and a fermentation bactericide are mixed, and then the mixed materials are put into a mixing and stirring machine to be evenly stirred, are sent into the material fermentation pool to be fermented for 8 days and are discharged from the pool to enter a secondary aerobic fermentation procedure. The organic fertilizer has the advantages of low cost and high yield and can improve the quality of crops.

A composite microbial preparation is prepared from hay bacillus (35-45%) lichen bacillus (25-35%) and thermofat bacillus (25-35%) through inclulating, culturing, proportional mixing, and culturing again. A microbial leaven is prepared from said composite microbial preparation through adsorption, press filter, breaking and baking. A microbial fertilizer is prepared from said composite microbial preparation, mud, peet, dung and dropping of chicken and livestock, distiller's grain, powered coal ash, straw or stalk, and city refuse through fermenting.

The invention relates to a charcoal-based organic fertilizer and a preparation method thereof. The charcoal-based organic fertilizer has the advantages of low cost, environment friendliness, good fertilizer efficiency, wide application range, high fertilizer efficiency utilization rate and pest prevention. The preparation method comprises the steps as follows: adding starter cultures to chicken manure and soybean meal respectively for fermentation, after drying, crushing and mixing crop-residue-derived carbon, the treated chicken manure and soybean meal with ground phosphate rock, adding wood vinegar to the mixture with stirring, performing granulation, and obtaining the charcoal-based organic fertilizer after cooling and drying.

The invention discloses a method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws. In the method, a co-production process technique integrated with comprehensive processing of multiple varieties is adopted. The method comprises the following steps: smashing the collected crop straws by a smash machine so as to form straw powder with the particle size of 8-30 meshes; pressing and forming the straw powder material for pyrolysis; and in the process of pyrolysis, preparing straw charcoal and activated carbon on one production line through carbonization and activation processes, and simultaneously, recovering flammable gas and extracting biological oil. By using the method, fixed investment is greatly reduced, economic and social benefits are effectively increased, the problems of stack and incineration of the straws are solved, waste straw resources are further developed and utilized, and the blank in the same industry in China is filled.

The invention discloses a method for producing a biocarbon-based slow-release nitrogen fertilizer, which is characterized by comprising the following steps: thermal cracking or gasifying corn straw, or apple tree waste branch, trunk and wood chip to obtain the biocarbon; mixing the biocarbon and an ammonium nitrate solution, or urea and the ammonium nitrate solution, fully stirring and drying, or adding a binder with 1-3% of total amount and sending to a granulation system for granulation, then drying to obtain the biocarbon-based slow-release nitrogen fertilizer product. The fertilizer has the advantages of simple and easy preparation technology, and low cost. The biocarbon-based slow-release nitrogen fertilizer contains 10-12% of nitrogen, the biocarbon carrier material is stable in soil, and is a good soil amendment and a carbon sequestration agent, soil is applied for improving soil fertilization, the nitrogen element of the nitrogenous fertilizer loaded by the biocarbon has slow-release effect, so that the loss of the nitrogen element can be reduced, the nitrogenous fertilizer utilization rate can be enhanced; the biocarbon can retain in soil for long-term to play the effects of carbon sequestration and carbon emission reduction, the biocarbon is helpful for alleviating climate warming, and biocarbon-based slow-release nitrogen fertilizer is a green fertilizer.

A fuel which is used for rotary kiln cement clinker firing is composed of raw materials with the following weight percentage: coal 3-80, straw substances 0-90, forest products wastes 0-95 and food industry by-product residues 0-70. The straw substances refer to rice straws, wheat straws, cotton stalks, sesame stalks, soybean straws, corn stalks, sorghum stalks, rice husks, peanut shells, soybean shells and corn sticks, the forest products wastes refer to defective bamboo, wood, tree branches, leaves, shrubs, faggot straws and sawdust and wood wool corner scrap materials in the bamboo and wood-processing industry, the food industry by-product residues refer to bran, wheat skin, squeezing meal cake, bean dregs and wine lees, and the coal refers to bituminite, anthracite and coke coal powder. The flue raw materials which are used for the rotary kiln cement clinker firing have wide selecting range, simple preparation, convenient use and rapid burning speed and are beneficial for protecting atmosphere circumstances.

The invention discloses an environment-friendly light porous simulated soil cultivation medium body and a preparation method thereof. The cultivation medium body is of a continuous integrated porous simulated soil sponge structure and is prepared from 1-10 parts by weight of polyurethane binding body, 1-50 parts by weight of filler, 0.01-50 parts by weight of auxiliary material and 0-5 parts by weight of embedded functional matter. The filler is at least one of organic filler, inorganic filler and organic and inorganic composite filler. The auxiliary material is a mixture of at least two of a surface active agent, a catalyst, a chain extender, a fire retardant and a foaming agent. The embedded functional matter is at least one of plant seeds, a rooting agent, a soil sanitizer, a straw fermenting agent, potash fertilizer, phosphatic fertilizer, nitrogenous fertilizer and compound fertilizer. The prepared simulated soil cultivation medium body is low in weight, high in aperture ratio, good in hydrophilia and water retention performance and excellent in mechanical property, and can be applied to the fields of vertical greening, roof greening, urban landscaping, indoor greening, intelligent greening, slope restoration, gardens and horticulture, ecological remediation, ecological management, soilless culture and the like.

The invention discloses a microbial fertilizer producing by using agricultural wastes and preparation thereof. Main materials are obtained by mixing and smashing 20%-40% oil sally bean dregs, 40%-60% crop straw and 15%-25% poultry excrement, moisture content achieves 60-65%, composite leaven is added according to 150g-200g/T to pile to be cone-shaped, yellow mud is used on the outside for sealing, a plastic film is used for covering in a sealing mode, after stacking, fermentation and digesting, and the composite leaven is composed of bacillus subtilis, bacillus licheniformis, trichoderma harzianum and trichoderma viride according to the mass ratio (W/W) of 1.5:1:1:2.5:4. Auxiliary materials made of 5%-10% mushroom dregs and 6%-10% rice husk ash are evenly mixed with fermented and prepared main materials, arbuscular mycorrhizal fungi agent are added according to 600-1000g/T for compounding, and the microbial fertilizer is prepared after passing a 3mm sieve. Good production and efficiency improvement is obtained through application, and the microbial fertilizer has good application value.

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.

A process for puffing the culture medium of edible fungus, which is prepared from the twigs or the straw or stalk of agricultural crops includes such steps as pulverizing, proportionally mixing it with organic and inorganic auxiliaries, puffing and baking.

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 invention provides a crop straw medium density fiberboard by natural gum. Raw materials of the medium density fiberboard comprise crop straw fiber, a bonding agent, a waterproof and lubricating agent and a flame retardant, wherein the bonding agent is natural gum and comprises plant gum and animal gum; the waterproof and lubricating agent is natural wax, stearic acid or stearate; and the flame retardant is non-toxic and harmless flame retardant. The mixture ratio for all the raw materials by weight percent is: 75 to 93 percent of the crop straw fiber, 1 to 8 percent of the bonding agent (dried), 0.5 to 8 percent of the waterproof and lubricating agent, and 5.5 to 23.5 percent of the flame retardant. All the raw materials are produced into a finished product through mixing, sizing, spreading, prepressing, hot pressing and edge cutting; and microwave is used for auxiliary heating in the hot pressing phase. The crop straw medium density fiberboard by the natural gum can realize complete degradation under natural condition after the medium density fiberboard is abandoned or destroyed without any nonreversible destruction to the environment, so the production and application of the crop straw medium density fiberboard realize complete sustainability and recyclability, and have significant realistic and historic significance.

The invention relates to a biomass slurry atomization thermal cracking process which comprises the following steps of stirring, mixing, gasifying, gas-solid separating, condensing and oil gathering. Adevice of the invention comprises a screw pump, an on-line grinder, a I-stage on-line filter, a slurry biomass storage tank, a slurry supply pump, a II-stage one-line filter, an atomization spray gun, a thermal cracking reactor, a cyclone separating device, a gas-gas thermal exchanger, a steam-water thermal exchanger and an oil gathering device which are sequentially connected with the output endof a stirring machine through pipes. Biomass comprises crop straws, other plant straws, branches and wooden meals. Because of adopting the slurry atomization reactor, the invention has the advantagesthat the slurry biomass atomization effect is good, the temperature field is stable, the slurry atomization realizes the uniform mixing of gas and material for ensuring the fully thermal cracking, the thermal cracking effect and the utilization ratio of the material are improved, the structure of the device is compact, the investment cost is low, the process adopts the continuous circulating operation, the production efficiency is high and the oil yield is large.

The invention discloses a separated double-layer rotary drum spiral screening device and method and relates to the field of agricultural machinery. The separated double-layer rotary drum spiral screening device consists of an inner-layer screen drum, an outer-layer screen drum, a long material collecting casing, a short material collecting casing, a support and the like, wherein the inner-layer screen drum is coaxially installed in the outer-layer screen drum, the inner-layer screen drum and the outer-layer screen drum are driven by a motor installed on the support. The separated double-layer rotary drum spiral screening method includes the circulating steps of charging, coarse screening, fine screening and discharging. The separated double-layer rotary drum spiral screening device has the advantages of being less prone to blockage, high in screening efficiency, compact in structure, low in vibration, noise and environmental pollution and the like and can be applied to screening of straw and other strip-shaped materials.

The present invention relates to a method for improving saline-alkali soil. Said invention utilizes straws and stalks of crops and plant branch and leaf as base material, and adopts the following steps: soaking the base material in fungous solution, binding it into the column form, making the column-form base material be embedded into the soil vertically according to the network form, utilizing the dialysis produced by said network-shaped base material and soil to prevent the salt content in the underground water from dire4ctly rising to soil surface and concentrating to make soil be salinized. Besides, covering the soil surface with pulverized straws and stalks of crops and plant branch and leaf, making irrigation by using the invented irrigation liquor, ploughing to make soil be loosened so as to attain the goal for improving saline-alkali soil.

The invention relates to a method for preparing an organic agriculture biochar compound fertilizer. The method comprises the following steps: (1) performing high-temperature pyrolysis on air dried crop straws or excrements of poultry and livestock in a charring furnace, and collecting biochar after cooling; (2) mixing the biochar, excrements of poultry and livestock and powdered rock phosphate, adding an EM bacterium solution and water, controlling the moisture content to be 40-50 percent, uniformly stirring and mixing, and pouring the solution into a fermenting tank for performing closed fermentation; (3) drying the fermentation product which is thoroughly decomposed, so that the moisture content of the fermentation product is 20-30 percent; (4) mixing the dried fermentation product, potassium mineral powder and clay, uniformly mixing and crushing; (5) granulating the crushed materials, and drying to obtain the biochar compound fertilizer. Components contained in the biochar compound fertilizer disclosed by the invention are components allowed to be used in national standards of organic products in China, the compound fertilizer is processed in the physical process and can be used in organic farms, and the gap of biochar compound fertilizers in organic agriculture is filled.

The invention discloses a weaned lamb forage and a preparation method thereof. The weaned lamb forage is composed of the following raw materials, by weight, 45-55 parts of corn straw, 30-40 parts of Pennisetum sinese Roxb, 15-25 parts of Black Locust leaf, 5-10 parts of Herba Leonuri, 10-20 parts of sweet potato residue, 10-15 parts of brewer's grain, 20-30 parts of peanut hull powder, 1-2 parts of a starter, 40-50 parts of corn flour, 20-25 parts of wheat bran, 10-15 parts of soybean meal, 4-6 parts of a lyophilized powder additive, 3-5 parts of fried rice flour, 5-8 parts of MaiFan stone, 2-4 parts of mandarin oil, 3-6 parts of sodium alginate, 0.2-0.3 parts of calcium carbonate, 0.3-0.4 parts of potassium hydrogen phosphate and 0.3-0.5 parts of salt. The forage contains all nutrition required by the growth of weaned lambs, guarantees the healthy production of the weaned lambs, provides healthcare values, and raises the growth speed of the weaned lambs.