40results about How to "Long water retention time" patented technology

The invention discloses a fly ash-based soil water-retaining conditioner and a preparation method thereof, belonging to the technical field of soil water-retaining conditioners. The fly ash-based soilwater-retaining conditioner comprises fly ash clinker and a soil composite mineral type conditioner. The fly ash clinker is prepared from the following components in parts by mass through a calciningprocess, and the mass ratio of fly ash to calcium oxide or calcium carbonate to sodium carbonate to potassium carbonate is 1: (0-1) or (0-1.4): (0-0.5): (0-0.5). Through the water absorption and drainage principle of the generated dicalcium silicate, the effect of keeping moisture in the soil is achieved; the soil composite mineral conditioner is composed of humus soil, humic acid and cured pig manure, and can improve physical, chemical and microbial reactions of soil and increase fertility of the soil.

A forestry water-retaining planting fast-growing method. Before planting, an organic water-retaining basin filled with water-retaining mixture is put down at the bottom of the hole, and rice stalks, white stone powder, calcium, magnesium, phosphorus and organic fertilizer are added to the surface of the water-retaining basin. When planting trees, tree roots It must be 20cm to 30cm away from the surface of the water retention basin, and the soil should be fertilized and stepped on firmly, and then covered with moisturizing grass. Take wheat straw, rice straw, bagasse, banana tree, rice hulls and adhesives, or easily soluble organic raw materials to make organic water retention basins. For every 100 tree seedlings, use 3 kg of water-retaining agent, 1 kg of water-retaining agent, 20 kg Chaff, 200 kg of water, the present invention has wide sources of raw materials, turns waste into treasure, is cheap, saves water resources, saves cost, is easy to operate, does not pollute the environment, has long water retention and heat preservation time, exerts high fertilizer efficiency, and promotes drought and anti-drought resistance of trees It can greatly increase the volume of woodland yield per mu, and its growth rate is more than 50% faster than that of natural planting.

The invention discloses a slow-acting multifunctional compound microorganism fertilizer and a process for producing the same. The slow-acting multifunctional compound microorganism fertilizer comprises, by weight, 15-25 parts of nitrogen, phosphorus and potassium compound fertilizers, 5-10 parts of peony seed cake, 10-20 parts of peony shells / leaves, 10-20 parts of feculae bombycis, 5-10 parts ofmineral palygorskite, 5-10 parts of potassium fulvic acid, 2-5 parts of disease and insect resistant components extracted from traditional Chinese medicinal materials, 1-3 parts of trace elements and5-8 parts of EM (effective microorganism) bacteria. The contents of N+P2O5+K2O in the slow-acting multifunctional compound microorganism fertilizer are higher than or equal to 15-25%, the effective viable bacterial count of the slow-acting multifunctional compound microorganism fertilizer is higher than or equal to 300 hundred million / kg, the moisture content of the slow-acting multifunctional compound microorganism fertilizer is lower than or equal to 30%, and the organic matter content of the slow-acting multifunctional compound microorganism fertilizer is higher than or equal to 20%. The slow-acting multifunctional compound microorganism fertilizer and the process have the advantages that the slow-acting multifunctional compound microorganism fertilizer is in a scientific formula, contains complete nutrients, is lasting in fertilizer efficiency, high in fertilizer utilization rate and free of pollution or public hazards and is antibacterial, green and ecological, multiple effects can be realized by the single slow-acting multifunctional compound microorganism fertilizer, insects can be prevented by the slow-acting multifunctional compound microorganism fertilizer, obvious effects of improving soil environments can be realized by the slow-acting multifunctional compound microorganism fertilizer, the yield of crops can be increased by the slow-acting multifunctional compound microorganism fertilizer, and the quality of the crops can be improved by the slow-acting multifunctional compound microorganism fertilizer.

The invention discloses a foamed concrete vegetation nutrient medium and application thereof; the foamed concrete vegetation nutrient medium is used for a gentle soil slope or an arid area soil slope; the foamed concrete vegetation nutrient medium comprises the following raw materials in parts by mass: 9 to 11 parts of turfy soil or humic acid organic fertilizer, 1.8 to 2.2 parts of plant fibers, 0.45 to 0.55 part of a soil micro-ecological improvement liquid, 0.18 to 0.22 part of a slow-release compound fertilizer, 2.8 to 3.2 parts of low-alkali sulphoaluminate cement, 0.08 to 0.12 part of sulfur powder, 0.25 to 0.35 part of polyvinyl alcohol, 2.8 to 3.2 parts of active silicon dioxide, 0.004 to 0.006 part of hydrogen peroxide, and 60 to 100 parts of water. The foamed concrete vegetation nutrient medium disclosed by the invention can provide sufficient various nutrients for plants; by adding the low-alkali sulphoaluminate cement, the compressive strength is high, the surface erosion resistance is high, and the low-alkali sulphoaluminate cement can be quickly bonded into a solid; hydrogen peroxide is added to form a pore structure and a porous channel through foaming, so that the water storage rate is high, the water retention time is long, long-term survival and growth of plants are facilitated, and the high transpiration / evaporation influence is greatly reduced.

The invention discloses art texture water paint and a preparation method thereof, relating to the technical field of paint. The art texture water paint comprises the following components in parts by weight: 140-160 parts of pure-acrylic elastic emulsion, 400-450 parts of 40-80-mesh goodow, 50-100 parts of 20-40-mesh goodow, 10-30 parts of polyamide wax solution (the weight ratio of polyamide wax to deionized water is 1:1), 0-50 parts of titanium dioxide, 50-100 parts of 325-mesh ground calcium carbonate powder, 2-2.5 parts of methylcellulose ether, 2-6 parts of dispersing agent, 1.5-2.5 parts of antifoaming agent, 5-15 parts of coalescing agent, 1-3 parts of leveling agent, 1.5-3 parts of thickening agent, 1 part of anti-mildew anti-alga agent and 120-200 parts of deionized water. The art texture water paint is prepared by uniformly mixing and stirring the components. The paint disclosed by the invention is green and environment-friendly and has the advantages of good application property, high flexibility, clear texture, good decoration property and good water resistance; and without APEO and the metal compounds such as lead or chromium, the paint avoids harm to the environment and human health.

A combined comprehensive roof rainwater utilization system for landscaping comprises a first rainwater storage tank and a second rainwater storage tank arranged at the upper end of the first rainwater storage tank, and an overflow port is formed in the upper portion of the side wall of the second rainwater storage tank and communicated to the first rainwater storage tank. The combined comprehensive roof rainwater utilization system for landscaping has a water storage function for collecting, storing and utilizing rainwater and is externally provided with a space and a structure for planting green plants, after planted plants grow up, degree of irradiation of sunlight on the rainwater storage tanks can be decreased, and the plants has good decorating effect. Stored rainwater can be widely used for watering plants planted on the outer side, surrounding lawns, flower beds and trees as well as washing surrounding road surfaces, cars and the like.

The invention discloses a composite substrate water retaining agent. The water retaining agent comprises an additive and an adhesive, wherein the additive comprises soluble starch, bamboo charcoal powder or corncob pyrolysis powder; and the adhesive is beta-cyclodextrin and sodium carboxymethyl cellulose. The environment-friendly substrate water retaining agent is prepared from raw materials which are natural, pollution-free, wide in source and easy to degrade, has high water absorbing capacity and water retaining efficiency, can replace an expensive high molecular compound water retaining agent, and solves the problems that culture substrates (such as peat, turf and soil) in agriculture and forestry production and floriculture have low water retaining capacity, the common high molecular compound is low in degradation rate and high in cost, and the like.

The invention relates to a water retention particle preparation method, wherein acrylic acid, acrylamide, ammonia water, ammonium persulfate, N.N-dimethyl bisacrylamide, sodium hyposulfite and water are combined and prepared into the water retention particles. According to the present invention, the whole production process does not require external auxiliary heating while the sodium hyposulfite is used as the self-initiation thermal agent, such that the temperature of the mixed liquid is automatically increased to achieve natural polymerization forming so as to form the product in a short time; the whole implementation process does not require relevant facilities and equipment while the simple facilities such as the corrosion resistance barrel, the disk and the like are utilized so as to substantially reduce the investment risk; the production process is not limited by the production environment, the full-opening type production can be achieved at the room temperature, even at the low temperature, and the efficient and high-quality water retention particles can be produced within 1 h; and the opening type reaction polymerization is performed during the implementation process, such that the reaction heat dispersion is easily achieved, the product cross-linking is uniform, the grafting rate is increased, and the performance is stable.

The invention provides a water-retaining matrix, a preparation method and an application thereof. The water-retaining matrix contains the following components: soil, water-absorbing resin, plant fermentation products, perlite, vermiculite and fiber carriers with the weight ratio of 60-75:0.3-0.4:50-70:5-7:10-12; and the fiber carriers are coco coir and / or polyester fiber. The water-retaining matrix provided by the invention has the characteristics of high water-absorption rate, long water-retaining time, rapidness in curing, rich nutrition, improvement of cold resistance of plants and the like.

The invention belongs to the field of organic chemistry, and relates to preparation of sustained-release organic fertilizers. The organic fertilizer consists of an organic fertilizer body and a water-retention sustained-release carrier, wherein according to the dry weight, the water-retention sustained-release carrier accounts for 2-8 percent of the weight of the organic fertilizer body; the water-retention sustained-release organic fertilizer is a polymer prepared by grafting crylic acid and / or a crylic acid derivative and cellulose-containing tobacco stem slag; and the crylic acid derivative comprises acrylamide or sodium acrylate. The water-retention sustained-release carrier of the organic fertilizer provided by the invention is high in water absorption, long in water retention time, low in cost, environment-friendly and prepared by tobacco waste serving as a raw material; when the water-retention sustained-release carrier is grafted to the crylic acid or the crylic acid derivative thereof to form the polymer, an undesirable water absorption effect is achieved; the organic fertilizer has the advantages of slow release and controlled release and is suitable for fertilization of places which are changeable in climates and are easy to dry.

The invention discloses a concrete water storage and retention type vegetation base material and a preparation method thereof. According to the invention, continuously superposed round integrated holes are formed at the whole body of the vegetation base material; diameters of big holes are 2-15mm; small holes with the diameters of 0.5-3mm are bestrewed at the center and the periphery of each big hole; and holes are mutually communicated to ensure that internal pipelines and cumulative containers for water storage and water drainage for plant growth are formed. The concrete water storage and retention type vegetation base material disclosed by the invention is of a porous structure, longer in water retention time, suitable for long-term survival and growth of plants and capable of beautifying the cities, purifying the air and improving the environment and has the advantages that the water storage and retention rate is about 50% of self weight of the base material; strength and plasticity are endowed; living space conditions of the plants are satisfied; water and soil loss problem does not exist; the water storage and retention mechanism of the vegetation base material is also beneficial to increasing the humidity and purifying the environment; and the whole-body hole structure is adopted to ensure that the base material is capable of absorbing the sound and lowering the noise.

The invention discloses a water-retaining agent, and a preparation method therefor and application thereof. The water-retaining agent comprises the following components: 1-50 parts of free radical polymerization reactant of N,N-dimethylacrylamide and methyl methacrylate, 5-50 parts of calcium hydrophosphate, and 80-120 parts of sodium polyacrylate. The preparation method of the water-retaining agent comprises the following steps: step one, carrying out a polymerization reaction on the N,N-dimethylacrylamide and methyl methacrylate under the effects of a cross-linking agent and a photoinitiator to obtain a polymer; and step two, after the calcium hydrophosphate is modified, carrying out ultrasonic concussion on the modified calcium hydrophosphate with the polymer and the sodium polyacrylate, heating, stirring, drying and crushing to obtain the water-retaining agent. The water-retaining agent is high in water absorption, high in strength, high in water absorption rate, good in saline-alkaline resistance, long in water-retaining time, good in temperature sensitivity, good in stability and low in cost, and is beneficial for popularization and application. The preparation method is short in process, intermediate steps of an experiment do not need postprocessing, and the process is environmentally-friendly and free of pollution.

The invention discloses a natural polysaccharide-based medical antibacterial hydrocolloid dressing. The natural polysaccharide-based medical antibacterial hydrocolloid dressing consists of a back lining support layer, a hydrocolloid layer and a stripping layer, wherein the hydrocolloid layer consists of a thermoplasticity elasticity body, natural polysaccharide and a cross-linking agent. The hydrocolloid dressing has favorable comfortable degree and adhesion strength to skin, the extensibility is 1.5N / cm-3N / cm, the permanent deformation is smaller than or equal to 1%, the extensibility of thedressing is close to extensibility of normal skin, and favorable comfortable degree can be provided. The stripping strength is 4N / cm-5N / cm, the imbibing multiplying power of the hydrocolloid is greater than or equal to 18 times, the water retention time is greater than or equal to 48 hours, the water vapor transmission is 20g.m<-2>.24h<-1>, and the dressing has favorable antibiotic action on common staphylococcus aureus and escherichia coli. Besides, the dressing is high in biocompatibility, can effectively prevent infection of wounds, and besides, can be used for infected wounds.

The invention discloses a method for in-situ soil improvement and arbor planting at a relocation site, which includes a step of digging a tree hole, and then using on-site construction waste and crushed stones to crush and screen, and lay a large-diameter permeable layer; the screened out Lay a small-particle permeable layer with a small particle size; then lay an adsorption layer; lay an original soil layer on the adsorption layer; lay a mud-resistant layer on the original soil layer; replant trees; backfill improved soil on the edge of the soil ball; According to local conditions, the present invention selects the common construction waste and gravel in the relocation place to lay the water seepage layer, and at the same time, lays the adsorption layer for the possible pollution in the relocation place. The construction process is simple, the cost is low, the effect is good, and it is easy to popularize.

The invention discloses a composite polymer water-absorbing resin containing nitrogen and potassium and a preparation method thereof, which comprises the following steps: adding a certain amount of reaction medium, dispersant and Calcium carbonate, warm up and mix. Another certain amount of nitrogen-containing monomer and 3-sulfonate propyl methacrylate potassium salt, cross-linking agent and initiator were dissolved in distilled water, then added to the reaction vessel, and polymerized for several hours. After the reaction, the product is filtered, washed, and dried to obtain a polymer water-absorbent resin. The preparation process of the invention is simple and suitable for industrialized production. The prepared polymer water-absorbing resin has high water-absorbing rate, long water-retaining time, and simultaneously contains nitrogen and potassium elements required for plant growth. The invention has good application prospects in land desertification control, soil water conservation, vegetation transplantation and the like.

The invention relates to the field of water retaining agents, and specifically relates to a spherical honeycomb water retaining agent and a preparation method thereof. The spherical honeycomb water retaining agent is prepared from the following raw materials in percentage by weight: 30 to 50 percent of acrylic acid, 15 to 25 percent of sodium hydroxide, 1 to 10 percent of acrylamide, 0.1 to 5 percent of cross-linking agent, 0.1 to 5 percent of initiator, 0.5 to 2 percent of assistant and the balance of water. The preparation method of the spherical honeycomb water retaining agent comprises thefollowing steps: S1, mixing sodium hydroxide with the water in percentage, and releasing heat, thus obtaining a mixture; S2, stirring and mixing acrylic acid, acrylamide, the cross-linking agent andthe initiator in percentage by weight, thus obtaining the other mixture; S3, mixing the mixture with the other mixture, thus obtaining to-be-reacted feed liquid; S4, enabling the to-be-reacted feed liquid to enter a reaction container; S5, synthesizing; S6, cleaning; S7, drying, thus obtaining the spherical honeycomb water retaining agent. Compared with the prior art, the water absorption speed isrelatively quickened by a honeycomb structure of the spherical honeycomb water retaining agent, balance is achieved, and the drought control cost is reduced.