63 results about "Agro waste" patented technology

The process and system of the invention converts carbonaceous feedstock such as coal, hydrocarbon oil, natural gas, petroleum coke, oil shale, carbonaceous-containing waste oil, carbonaceous-containing medical waste, carbonaceous-containing military waste, carbonaceous-containing industrial waste, carbonaceous-containing medical waste, carbonaceous-containing sewage sludge and municipal solid waste, carbonaceous-containing agricultural waste, carbonaceous-containing biomass, biological and biochemical waste, and mixtures thereof into electrical energy without the production of unwanted greenhouse emissions. The process and system uses a combination of a gasifier, e.g., a kiln, operating in the exit range of at least 700° to about 1600° C. (1300-2900° F.) to convert the carbonaceous feedstock and a greenhouse gas stream into a synthesis gas comprising mostly carbon monoxide and hydrogen without the need for expensive catalysts and or high pressure operations. One portion of the synthesis gas from the gasifier becomes electrochemically oxidized in an electricity-producing fuel cell into an exit gas comprising carbon dioxide and water. The latter is recycled back to the gasifier after a portion of water is condensed out. The second portion of the synthesis gas from the gasifier is converted into useful hydrocarbon products.

The present invention relates to a process and apparatus for processing agricultural waste to make alcohol and/or biodiesel. The agricultural wastes are subjected to anaerobic digestion which produces a biogas stream containing methane, which is subsequently reformed to a syngas containing carbon monoxide and hydrogen. The syngas is converted to an alcohol which may be stored, sold, used, or fed directly to a reactor for production of biodiesel. The solids effluent from the anaerobic digester can be further utilized as slow release, organic certified fertilizer. Additionally, the wastewater from the process is acceptable for immediate reuse in agricultural operations.

This invention relates to a method of manufacturing the fertilizer made from organic wastes such as food wastes, human excrements, animal excrements, slaugterhouse waste, henhouse waste, fish and shellfish wastes, vegetable wastes and agricultural wastes. Various wastes are mixed and crushed into certain sizes, processes for adjusting the water content, put into the treating tank and digested by mixing a calcined lime. The present invention utilizes a dolomite or mixture of calcined lime and dolomite to provide the first treatment material. This first treatment material is mixed with the supplement material such as charcoal, saw dust, loess, zoelite, chaff, or shell powder to give compost fertilizer. It is also mixed with agricultural products such a watermelons or melons which ferment to provide a special fertilizer for the agricultural product. The treatment material can be added to water and mixed with mugwort, medicinal herb, zeolite, loess, and then extracted to provide a liquid fertilizer. As the various organic wastes are changed to organic fertilizer, the acidified soil is improved, the environmental contamination can be prevented, and the high moisturizing and the fine porous of the soil prevent drought and fertilizer loss so as to raise fertilizing efficiency.

The present invention utilizes extracts of the pre-sporulation (preconidial) mycelial stage of entomopathogenic fungi as insect and arthropod attractants and/or pathogens and can be employed to limit the zoonotic diseases they transmit. The fungus can be cultivated on grain, wood, agricultural wastes or other cellulosic material and extracts can be made thereof. More than one fungus and substrate can be used in combination with one or more antimicrobial, antiprotozoal, antiviral, and genetically modified agents that result in reduced spread of contagions and lessens the damage they inflict on animals, and plants.

This invention relates to a simple, convenient, portable mini-distillation apparatus for the production of essential oils and hydrosols, said apparatus is useful to distill essential oils and hydrosols such as rose water, ajowain water from fresh and dried plant material like leaves, flowers, roots and rhizomes by water distillation, water and steam distillations and as an optional, steam distillation can also be performed at atmospheric pressure as well as slightly higher and lower than atmospheric pressure, said apparatus can be heated on brick-clay furnace with small agro-waste, LPG cooking gas, electrically heated stove or kerosene/diesel burner etc. and requires minimum attention during handling; since the apparatus is made of stainless steel and glass, the essential oil distilled is of better quality.

The invention relates garden soil prepared from construction waste recycled products and agricultural wastes and a preparation method thereof. The garden soil is composed of 65-75% of construction waste spoils, 10% of reclaimed gravels, 10% of reclaimed haydite, and 5-15% of plant ash, wherein the reclaimed gravels and the reclaimed haydite are all recycled products prepared by processing construction wastes, and the plant ash is required to be subjected to acid regulating treatment. According to the invention, a large amount of construction waste recycled products and agricultural wastes are utilized, so that the land occupied problem can be solved, and an effect of changing waste material into things of value can be achieved; and the garden soil prepared according to the invention is good in water retention, fertilizer conservation, air permeability and water permeability, and plants cultivated by using the garden soil grow well and are boughy.

The present invention is decay promoting ferment and its application in composting agricultural waste to promote the degradation of hemicellulose, cellulose and lignin. The decay promoting ferment is one compound fermented liquid compounded with the fermented liquid of starch decomposing bacteria, pectin decomposing bacteria, hemicellulose decomposing bacteria, cellulose decomposing bacteria and lignin decomposing bacteria, and through filtering off thallus and mixing. It is added into and mixed with the compost material, with the added amount being 0.8-1.5 wt% of the compost material. It can promote the degradation of starch and other easy-to-degrade matters as well as pectin, lignin and cellulose. It has fast fermentation temperature raising and simple use, and can promote composting efficiency and improve compost quality.

The present invention provides a process for the preparation of Vanillin (4-hydroxy-3-methoxy benzaldehyde) by a single-step oxidation of ferulate moiety of rice straw, a renewable agricultural waste. This is a chemical method where vanillin is produced from a renewable resource in a single-step using a green oxidizing reagent and green solvent. Apart from that the water and the inorganic compounds can be recycled.

An agricultural waste digester and biogas generation system. The system includes a digester assembly having a cylindrical body, a hollow interior, a center axis and a plurality of wheel segments within the interior of the digester assembly. A gas conduit extends from the interior of the digester assembly to a power generation device. Also included is a water vessel containing water, and each of the plurality of wheel segments have an acruate, contoured surface area which restrict biogas movement within the digester assembly to produce induced agitation of agricultural waste.

The subject invention provides advantageous systems and processes for anaerobic digestion of organic waste streams, particularly agricultural waste streams. According to this invention, a new process is provided in which a liquid fraction from an organic waste stream comprising soluble compounds is segregated and incubated in a reactor separate from the solids fraction of the organic waste stream. Digestion of waste in both reactors occurs substantially simultaneously and both reactors produce biogas (thus both reactors function essentially like single stage reactors but allow for continuous or intermittent loading). According to one aspect of the invention, at least one cross-flow baffle is provided for use in an anaerobic digester to collect biogas and break up clumped solids in the reactor. In another aspect of the invention, packing media for use in an anaerobic digester is provided.

The invention discloses a preparation method of a hydroxyapatite modified towel gourd vegetable sponge biomorphic heavy metal adsorbent. By utilizing the advantage of a multistage porous structure of towel gourd vegetable sponge, the compound heavy metal adsorbent is obtained by fully changing the structural components of hydroxyapatite by an in-situ synthesis method and is applied to highly efficient adsorption purification treatment of heavy metals in a water environment, such as cadmium. The method can be used for controlling micropollution caused by heavy metals in the water environment and reducing heavy metals in smelting wastewater. The method is characterized by mainly utilizing low-concentration (NH4)2HPO4 and a saturated Ca(OH)2 solution as basic liquids and adopting the in-situ synthesis technology to prepare the compound heavy metal adsorbent with a eucalyptus structure. The hydroxyapatite modified towel gourd vegetable sponge biomorphic compound heavy metal adsorbent with natural plant structure morphology is synthesized by manually controlling the preparation process. The preparation method has the beneficial effects that a cheap and environment-friendly material is provided for heavy metal pollution control; a new method and approach is provided for utilization of the agricultural waste, namely towel gourd vegetable sponge; and the heavy metal adsorbent has the advantages of good adsorption effects, wide range of application, simplicity and stability in material preparation, easier process, and the like.

The invention belongs to a mass production mode of bag cultivation of straw mushrooms by a mushroom bran waste medium of pleurotus eryngii, and relates to the fields of utilization of agricultural wastes and planting of edible fungi. Waste mushroom bran annually produced by the pleurotus eryngii creates a pollution source, and by using the characteristic that partial cellulose of the waste mushroom bran is decomposed by the pleurotus eryngii spawns into mycelium protein, manioc waste is added to the waste mushroom bran to prepare a large amount of low-price and easily-available compost. A traditional straw mushroom production mode is a bed type planting mode, a large amount of manpower is required when fermentation raw materials are loaded onto and unloaded from racks, and refermentation is required, so the traditional straw mushroom production mode is time-consuming, labor-consuming and energy-consuming. The invention provides the mass production mode of straw mushrooms capable of reducing manpower and energy consumption, shortening the mushroom production time, improving the yield and lowering the cost. The mass production mode comprises the following technical process: bagging the piled fermented compost, conducting sterilizing, inoculating and spawn running, after the bags are full of spawns, conducting sterilizing, opening the bags, placing bare mushroom sticks on a culture rack, conducting mushroom production management and conducting centralized collection. The mass production mode of bag cultivation of straw mushrooms by the mushroom bran waste medium of pleurotus eryngii has the advantages that refermentation is not needed, manpower is reduced, energy consumption is reduced, mushroom production is advanced, cost is lowered, and the like.

The invention relates to a method for manufacturing fireproof density plates by using mulberry branches, which comprises the following steps of: crushing the mulberry branches, mixing the crushed mulberry branches with magnesium-oxygen cement, pearlite, talcum powder or quartz powder according to the mass ratio of 1-2:5-8:0.1:0.3, adding a coagulating agent, stirring and beating to form slurry, quickly placing the slurry into a roll squeezer for rolling, solidifying for sizing, demoulding, cutting according to a target specification, leveling up for maintaining for 5-8 days, placing in water to soak for 6-10 hours, taking out, drying in the sun or by air, cutting according to target specification, classifying and checking. In the invention, the mulberry branches as agricultural wastes are sufficiently utilized to produce the fireproof density plates, coal is not burnt in the production process, and soot and sewage are not discharged, thereby the purposes of comprehensively utilizing resources, turning waste into wealth and protecting the ecology and the environment are achieved.

The invention belongs to the technical field of soil remediation, and particularly relates to a remediation method for heavy metal-contaminated soil. The remediation method comprises the following steps: a) sequentially subjecting the heavy metal-contaminated soil to leaching with an orange peel leaching solution, washing with water and leaching with an FeCl3 solution, or leaching the heavy metal-contaminated soil by using a compound solution of the orange peel leaching solution and the FeCl3 solution; and b) mixing the leached soil with orange peel biochar to obtain repaired soil, wherein the orange peel leaching solution is a liquid-phase product obtained by ultrasonic extraction of a mixture of orange peel powder, acid liquor and a surfactant, and the orange peel biochar is a product obtained by carbonizing solid residues generated by the ultrasonic extraction. According to the method provided by the invention, resource utilization of agricultural wastes is realized, the content of heavy metals in the soil and environmental risks are reduced, the cost of eluting agents is low, the preparation process of the eluting agents is green and environment-friendly, operability is high, efficient combination of an eluting method and a stabilizing method is realized, and the defects of a single remediation method are overcome.

The invention provides a technology for preparing rare-earth tailings amelioration inocula by culturing plant growth-promoting bacteria with piggery wastewater as a raw material. The technology is characterized in that the agricultural waste piggery wastewater is used as a raw material for culturing plant growth-promoting bacteria; and bacillus amyloliquefaciens H47 collected in the China Center for Type Culture Collection on June 24, 2013 with the collection No. of CCTCC M 2013283, commercial bacillus licheniformis and commercial Bacillus pumilus are used as the plant growth-promoting bacteria for preparation of the rare-earth tailings amelioration inocula. The piggery wastewater is used as the raw material for culturing the plant growth-promoting bacteria for preparation of the rare-earth tailings amelioration inocula. By the utilization of the plant growth-promoting bacteria for ammonium decomposition, soil fertility is increased. The product also can be used as a water-retaining agent, thus promoting formation of a soil aggregate structure and preventing soil hardening, destroying soil capillarity and avoiding soil moisture evaporation. By using the piggery wastewater as the raw material for culturing the plant growth-promoting bacteria, the sources are wide and price is low, and bacterial strain propagation speed is fast. In addition, the product also can be used as a fertilizer, providing various nutrients for plants. The technology is simple, has low production cost, and is easy for promotion. By the technology, piggery wastewater is reasonably utilized, thus changing waste into valuable things.

The invention discloses a method for cultivating living pigs with organic feed. According to the invention, agricultural waste is utilized to produce organic biological feed through microbial fermentation. The raw materials are fermented, and in particular microorganisms are added, thereby enriching nutrients in the raw materials and decomposing macromolecular proteins or fats which are unfavorable for absorption, and therefore the feed conversion utilization rate is improved, the nutrient absorption rate is improved, growth of the pigs is promoted, the reproduction rate is increased and the cost of feed is reduced. With use of the organic feed of the present invention for raising pigs, the cultivating quality is improved, residues of antibiotics are reduced, the fed living pigs reach thequality of organic meat, and the production value is improved.