61 results about "Arundo donax" patented technology

A method of producing a virtually fireproof plywood from perennial grasses such as Arundo donax Ligneous, various bamboo strains, or a blend thereof, by first weaving the stalks of these plants into a mat and then layering these mats and binding each layer with any one of several commercial resins mixed with potash for the purpose of enhancing the board's fire retardant quality. The result is the formation of a finished product with structural board attributes and an exceptionally high flash point in relation to other manufactured board products made from forest materials.

The present invention provides methods for the micropropagation of reed grasses, particularly Arundo donax. In addition, the present invention provides methods for the macropropagation of bamboo and reed grasses, which utilize a unique float bed system and apparatus. The advantages of the present invention are that desirable plant clones can be obtained for planting in plantations and the methods are much more cost and labor efficient than traditional propagation techniques.

The invention discloses a green agricultural compound Chinese herbal medicine bactericide which is prepared from the following Chinese herbal medicines: schisandra chinensis, eucommia ulmoides, alpinia oxyphylla, bighead atractylodes rhizome, bletilla striata, radix scutellariae, radix stemonae, semen strychni, sophora flavescens, arundo donax, radix ophiopogonis, dandelion, liquorice, rheum officinale, radix lithospermi, clove, cortex magnoliae officinalis, fructus forsythiae and coptis chinensis; the bactericide is prepared by extracting the Chinese herbal medicines by alcohol; the bactericide is mainly used for controlling various diseases of various crops caused by fungi, so that the disease resistance and the immunologic function of the crops can be improved. After the green agricultural compound Chinese herbal medicine bactericide is used, the defects that the environment is polluted by the chemical pesticide and the drug resistance is easily caused can be overcome, and the problems that the biological pesticide is small in sterilization range and slow in pesticide effect can be solved; the green agricultural compound Chinese herbal medicine bactericide can be used for controlling various fungal and bacterial diseases of plants, does not cause drug resistance after being used for a long time, and is less in environmental pollution and harmless to people and livestock.

The invention provides a preparing and application method of an Arundo donax biological charcoal serving as a nitrogenous fertilizer synergist. The preparing and application method comprises the steps of: harvesting mature-stage Arundo donax, shearing into small segments of 2-5cm, and air-drying for later use; heating the Arundo donax segments to 350-650 DEG C at a heating rate of 1-20 DEG C/min under the protection of inert gas at a flow rate of 200-500mL/min for charring for 1-6h; after charring is finished, cooling to room temperature under the protection of inert gas; crushing prepared biological charcoal into particles of 1-5mm, sealing, and storing in a drying place for later use; and applying the crushed biological charcoal to agricultural soil at a ratio of 0.1-8%, and sufficiently mixing to be uniform, wherein the soil moisture content is kept at 60-80%. The preparing and application method is simple in operation, low in cost and significant in effect, and is suitable for the situation of China; and by using the method, the nitrogenous fertilizer absorption of the crop is promoted, the nitrogenous fertilizer loss is reduced and the nitrogenous fertilizer utilization efficiency of the crop is improved.

The invention relates to a method for regenerating plant fromarundo donax linn callus. The method comprises the following steps of (1) inducing callus: inoculating arundo donax linn tissue into culture medium containing1.0-5.0mg/l of 2,4-D (2,4-dichlorophenoxyacetic acid), carrying out dark cultivation for 3 days after inoculating, and then cultivating under the condition that the light period is 16 hours of illumination and 8 hours of darkness, and the illumination intensity is 2000Lx; (2) succesive transfer culture of callus: inoculating the callus into the culture medium containing 5.0mg/l of 2,4-D; (3) regenerating the callus plant: taking MS culture medium as a basic culture medium, and adding 0.5mg/L of IBA (indolebutyric acid) and 5.0mg/L of 6-BA (6-benzylaminopurine); (4) sprouting cultivation; (5) rooting cultivation: inoculating the plant into the MS culture medium in which 0-0.5mg/L of NAA (naphthylacetic acid) is added to root after sprouting; and (6) transplanting. A method for regenerating the plant from arundo donax linn callus is built by the invention; and expanding propagation of excellent arundo donax linn is facilitated.

The invention discloses a method for cultivating pleurotus eryngii via bottles in a greenhouse by using mushroom grasses, belonging to the method for cultivating edible mushrooms by using mushroom grasses in mushroom production. With the adoption of the method, six kinds of mushroom grass seeds comprising miscanthus floridulus, neyraudiareynediana, arundo donax linn, grassiness, dicranopteris pedata, and Jujuncao are combined with auxiliary materials comprising bran, corn starch and lime; and the method of cultivating pleurotus eryngii via bottles in the greenhouse by using mushroom grasses is implemented by six formulas. According to the method, the fresh grasses such as grassiness, Jujuncao, miscanthus floridulus, neyraudiareynediana, arundo donax linn and dicranopteris pedata are directly used as the raw materials, the processes of drying and water are eliminated, so that the production cost is saved, and the method has the following advantages of being high in yield and short in production period, and improving the economic benefit. Compared with the cultivation by using cottonseed hulls in the prior art, the method has the advantages that the product quality can be improved. Compared with the cultivation by using dry mushroom grasses in the prior art, the method has the advantages that the costs spent on drying and storing mushroom grasses can be saved. Compared with the cultivating by using plastic thin films, the method has the advantages that the mechanical operation is facilitated, the yield is high and the production period is short and the like.

[Object] To provide a solid fuel suitable for thermal power generation by making use of the residue left after beneficial seeds, grains or bulbs are collected.

[Solution] A solid fuel which comprises a composition containing 70 wt % or more, on dry basis, of dried Arundo donax, Leucaena leucocephala, Saccharum officinarum, Manihot esculenta, straw, seaweed, seagrass or algae and which is hot compression molded.

The present invention relates generally to a process for recovering hemicellulose from Arundo donax comprising extracting a hemicellulose containing fraction from an Arundo donax biomass, purifying the hemicellulose containing fraction to remove lignin and other extractives, concentrating the purified hemicellulose containing fraction, and hydrolyzing the concentrated and purified hemicellulose containing fraction to yield 5 and 6 carbon sugars.

The invention belongs to the field of sewage treatment, and particularly relates to a composite vertical flow artificial wetland deep purification livestock and poultry culture waste water treatment device, a method and application thereof. A device realizing serial connection of downstream undercurrent, horizontal undercurrent and upstream undercurrent is built; a composite vertical flow artificial wetland deep purification livestock and poultry culture waste water treatment method is formed through wet land pool body filling material layer material selection and wetland plant selection and matching; the result shows that zeolite and arundo donax var versicolor composite vertical flow artificial wetland has the obvious effects on livestock and poultry culture waste water denitrification and antibiotic and resistance gene removal. The method has the advantages that the denitrification capacity of anaerobic ammonia oxidation and the like of the artificial wetland is enhanced; the wastewater contaminant removing rate is effectively improved. Compared with conventional undercurrent artificial wetland, the method has the advantages that the total nitrogen removal rate is improved by 30 percent or more; the waste water antibiotic concentration can be obviously reduced; the average removal rate of tetracycline reaches 80 percent or higher; the resistance gene concentration in the waste water is reduced by about one order of magnitude.

The invention discloses a system and method for preparing bio oil, activated carbon and combustible gas through arundo donax Linn. polygeneration. The system comprises a pretreatment system, a pyrolysis furnace, a waste heat boiler, an air preheater and an oil and water separation system; the pretreatment system comprises a drying device which comprises a feed inlet and a discharge hole, the pyrolysis furnace comprises a feed inlet, an oil gas outlet, a superheated steam inlet and an activated carbon outlet, the waste heat boiler comprises an oil gas inlet, an oil gas outlet and a condensate outlet, the air preheater comprises an oil gas inlet, a combustible gas outlet and a condensate outlet, and the oil and water separation system comprises a condensate inlet and a bio oil outlet. According to the system and method for preparing the bio oil, activated carbon and combustible gas through arundo donax Linn. polygeneration, arundo donax Linn. is subjected to pyrolysis, after pyroysis is completed and heat preservation is conducted, biochar is activated again, and activated carbon is obtained; high-temperature oil gas produced through pyrolysis is recycled through waste heat to produce the bio oil and combustible gas, and energy consumption of the system is greatly reduced.

Composite panels and pulp, and paper products of the pulp, are produced from Arundo donax. In the fabrication of the composite panels, Arundo donax is comminuted to a suitable size, combined with a binder, and consolidated into panels that meet standards for construction and/or furniture grade panels. The Arundo donax particulates may be combined with wood particulates to produce a mixed furnish that can be used in the preparation of composite panels. Comminuted Arundo donax is treated, in conventional pulping processes, to produce a high tensile strength pulp that can be used in the production of paper. The pulp has a lighter color than wood pulp, and thereby uses less bleaching chemicals to achieve a desired whiteness. The pulp can be combined with wood pulp to produce a variety of products.

The invention discloses a method for treating domestic sewage through artificial wetland. The method includes following steps: S5, guiding upper-layer domestic sewage in a sewage tank into artificialwetland; S6, guiding the domestic sewage after being treated in upper-layer artificial wetland into middle-layer artificial wetland and bottom-layer artificial wetland, wherein aquatic plants plantedin the middle-layer artificial wetland and the bottom-layer artificial wetland are arranged as follows: taking reed, arundo donax var versicolor, cattail and aquatic iris as emergent aquatic plants ina stabilization pond shoreside shallow area, taking water hyacinth as a main floating-leaved plant and cold-season cress as a main floating bed plant, and total plant coverage is greater than 20%. Compared with conventional technology, the method has the advantages that sewage is pretreated through process steps of filtering, aerating and precipitating, impurities and high salt in the sewage canbe separated effectively, and impact of production sewage on artificial wetland ecological environment is prevented; organic matter decomposed by the aquatic plants can provide a carbon source for wetland denitrification.

The invention discloses an arundo donax resource utilization method for repairing extremely heavy metal contaminated soil. For the characteristics of low arundo donax utilization rate and low economic value of a traditional arundo donax resource utilization method, the roots and stem leaves of arundo donax are firstly separated and then carbonized respectively, according to different characteristics of the arundo donax, the arundo donax is made into a finished arundo donax root activated carbon product of an indoor adsorbent for civil use and a finished arundo donax stem leaf activated carbon product for industrial use separately, thereby significantly increasing the economic value of the arundo donax; a recycling mechanism is established, and recycled activated carbon is used for comprehensive utilization of non-ferrous metal metallurgy enterprises.

The invention discloses a method for cultivating triploid arundo donax. The method the steps of S1, using the high-resistance and fast-growing arundo donax as a source plant of polyploid culture; S2,sterilizing and sowing source plant seeds in a solid medium, conducting light culture, and finally obtaining protocorm; S3, preparing protoplast by using protocorm obtained in S2, conducting cell fusion, obtaining homologous double diploid cells, culturing into callus using the medium, inducing the tetraploid callus to differentiate, and obtaining the tetraploid arundo donax seedlings; S4, conventionally hardening the tetraploid seedlings, and cultivating for flowering; S5, when the tetraploid arundo donax is flowered, using the tetraploid arundo donax as a female plant, using a diploid arundodonax as a male plant, conducting sexual hybridization, and after the hybridization, obtaining the seeds which are triploid arundo donax; S6, conducting non-symbiotic germination and cultivation, bulb induction, seedling differentiation and transplanting on the triploid arundo donax seeds. The arundo donax has strong resistance to stress.

The invention discloses a perennial plant rooting agent preparation method. A perennial plant rooting agent is prepared from 1% brown sugar water, silkworm excrement, herba portulacae extract liquid,rapeseed cake powder, rice bran, citronella leaf powder, rosemary leaf powder, cassava residue powder, ginger extract liquid, artemisia apiacea extract liquid, cortaderia selloana extract liquid, couch grass extract liquid, wormwood extract liquid, solidago canadensis extract liquid, arundo donax var versicolor extract liquid, bamboo shoot shell powder, cottonseed meal, wheat straw powder and ricestraw powder. A product avoids environmental pollution and is simple in preparation. Synergistic effects among components are achieved, active nutrients are sufficient, cutting seedling root systemsgrow well, plants are robust, the occurrence rate of bacterial leaf rot, leaf spot disease and ear root rot is decreased, and cold resistance of crops is improved.

Provided are plant hormone-based growth-enhancing compositions, which comprise at least one auxin, at least one cytokinin, and at least one polyaspartic acid, and which optionally comprise at least one seaweed concentrate and at least one surfactant. Also provided are methods of propagating grass plants, including those of family Poaceae, such as the sterile grass plantArundo donax, by treating the mature or immature stems of these plants with growth-enhancing compositions to stimulate the development of roots and shoots from meristematic tissues.