36results about How to "Effective water retention" patented technology

The invention discloses a lactobacillus fermentum strain LF8005 which is preserved in China Center for Type Culture Collection on November 9, 2020, the address is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M2020704. The invention also provides a lactobacillus fermentum culture and a preparation method thereof, and the lactobacillus fermentum culture has the effects of inhibiting escherichia coli, staphylococcus aureus and candida albicans, scavenging free radicals, resisting oxidation and preventing skin inflammation. The lactobacillus fermentum is separated from a traditional fermented dairy product, the safety of the lactobacillus fermentum is guaranteed, macromolecular active matter such as polysaccharide, glycoprotein and biotin can be secreted, so that the viscosity of fermentation liquor is increased, and the lactobacillus fermentum serves as a natural active component to be added and applied to skin care products. The product is low in irritation, high in safety and not prone to dependence, mainly improves the skin environment and performs prevention and protection on the skin, adapts to the development requirements of current skin care cosmetics and can be safely added and applied to skin care products.

The invention provides a plant fiber vegetation blanket and a method for manufacturing the same. The plant fiber vegetation blanket comprises a polypropylene fiber layer, a plant seed layer, a water retention layer and a plant fiber water locking layer. The polypropylene fiber layer, the plant seed layer, the water retention layer and the plant fiber water locking layer are sequentially connected with one another from bottom to top. The plant fiber vegetation blanket and the method have the advantages that the plant fiber vegetation blanket is simple in structure and low in cost; water locking and protecting effects can be realized by plant fibers, the plant fiber vegetation blanket is breathable, the plant seed layer can be effectively protected, water and air which are required by growth of plants can be provided, the plants can penetrate the water retention layer and the plant fiber water locking layer to grow out of the water retention layer and the plant fiber water locking layer, and accordingly the plant fiber vegetation blanket is applicable to water and soil loss protection, upper slope protection and bank and embankment protection; plant seeds can be kept in dormancy by the aid of a product, namely, the plant fiber vegetation blanket, under appropriate conditions to be stored for a long time, the seeds only need to be awaken by the aid of water when the plant fiber vegetation blanket is used, and accordingly the plant fiber vegetation blanket is simple and is easy to use; the method for manufacturing the plant fiber vegetation blanket is easy and convenient to implement, low in cost and high in production efficiency, and can bring convenience for quickly producing the plant fiber vegetation blanket on a large scale.

The invention discloses a flood irrigation net type composite protective structure which comprises a plurality of anchor rods, an inner-layer net and a wave type outer-layer net. The anchor rods which are uniformly arranged are buried in a side slope, the inner-layer net is parallelly laid along a slope surface of the side slope, the wave type outer-layer net is laid on the upper side of the inner-layer net, a planting substrate layer covers a double-layer type composite plant growing net formed by the inner-layer net and the wave type outer-layer net, a wetting belt net is laid on an outer layer of the double-layer type composite plant growing net, plant growing nets are laid on the wetting belt net at intervals of certain distances, and spaces between the plant growing nets and the wetting belt net are filled with anti-scour water retention layers; water delivery wetting tubular belts are woven to form a net of the wetting belt net. The invention further provides a method for applying the flood irrigation net type composite protective structure to ecologically protecting the high and steep side slope. The flood irrigation net type composite protective structure and the method have the advantages that the problem of poor stability of substrates used in spray seeding technologies for greening side slopes at present and incapability of utilizing the substrates to ecologically protecting existing high and steep side slopes can be solved by the aid of the flood irrigation net type composite protective structure and the method; the substrate layer holding capacity of the slope surface can be enhanced, and the stability of the planting substrate layer can be greatly improved; water can be automatically supplied to greening plants on the side slope by means of flood irrigation in a balanced manner, and accordingly water and energy can be saved.

The invention discloses a tea tree improving fertilizer which consists of the following raw materials in parts by weight: 50-70 parts of composted cow dung, 20-30 parts of nitrogen-phosphorus-potassium fertilizer, 15-20 parts of ground phosphate rock, 10-12 parts of ground potassium rock, 5-7 parts of Chinese wax gourd peel, 2-4 parts of oyster shell powder, 5-7 parts of sweet potato stems, 3-5 parts of herba leonuri, 6-8 parts of fructus cnidii particles, 10-15 parts of soil conditioner, 4-6 parts of EM microbial agent, 1-2 parts of sodium selenite, 2-4 parts of ammonium polyphosphate, 1-3 parts of calcium superphosphate and 2-3 parts of zinc sulfate. With high nutrient content, the fertilizer disclosed by the invention improves the soil fertility and tea quality and has a perfect economic value; meanwhile, activated carbon in the soil conditioner has relatively strong adsorbability and effectively adsorbs pollutants such as heavy metals in the soil so as to effectively green the soil and reduce harm to the plants; and moreover, chitosan is a bioactive macromolecule, and through combination with soy isolate protein, the water absorption and water retention of the soil can be effectively realized, the water content of the soil is guaranteed, and the soil properties are improved comprehensively.

The invention discloses a fertilizer and water retention method in treatment of stony desertification. The method comprises the steps that a stony desertification surface is prefilled with a soil layer with a water retaining agent and a nutritional agent, the soil layer is paved with degradable fiber after being compacted, new soil slurry containing a water retaining agent, a cross-linking agent, compound fertilizer, park soil, turfy soil, plant seeds and water is sprayed into the degradable fiber, and the degradable fiber is paved with a geogrid to be fixed, wherein the new soil slurry is composed of, by weight, 3-20 parts of the water retaining agent, 1-12 parts of the cross-linking agent, 1-20 parts of the compound fertilizer, 5-40 parts of the park soil, 5-35 parts of the turfy soil, 1-20 parts of the plant seeds and an appropriate amount of the water. The fertilizer and water retention method can achieve a good effect on treatment of a stony desertification area by being implemented one time, can effectively achieve the effect of water and fertilizer retention and is easy to implement, conditions needed by plant growth are effectively improved, wide stony desert resources in China are effectively utilized, and the stony desert land treatment cost is saved.

A manufacture method of a concrete prefabricated bridge deck with a plasticizer is characterized by comprising the specific steps: weighing concrete materials (by mass) of 40-50 parts of cement, 3-10parts of silica fume, 5-7 parts of carbide slag, 3-5 parts of steel slag, 30-40 parts of sand, 40-50 parts of crushed stone, 10-20 parts of water, and 3-4 parts of the plasticizer; adding the cement,silica fume, carbide slag, steel slag and water into a mixer, mixing, adding sand, crushed stone and the plasticizer, and continuing to mix well to obtain concrete. The concrete prefabricated bridge deck has a water retention rate of 90.4-93.2%, 28-day shrinkage of 0.102-0.116%, initial setting time of 200-210 min, final setting time of 370-390 min, one-day compressive strength of 20.5-22.4 MPa, 7-day compressive strength of 34.5-36.1 MPa, 28-day compressive strength of 47.5-49.2 MPa, and 14-day tensile strength of 1.86-1.93 MPa. The method provides significantly extended initial and final setting time and evidently improved compressive strength and tensile strength for the prior concrete, with shrinkage evidently reduced.

The invention aims at phenomena of sudden sinking, surging soil, over-high sinking speed, extra sinking, over-large displacement, over-large inclining and the like in the existing open caisson sinking construction process at a saturated water condition in a geological sludge layer, and provides an open caisson sinking construction method that adopts cement powder spraying piles. The method comprises three manners of arranging a waterproof curtain at the periphery of an open caisson, distributing sinking stabilizing piles at cutting edges of the open caisson and arranging a composite foundation at the bottom of the open caisson, so that the stability of inner soil body is ensured, gestures and sinking speed and depth of the open caisson are controlled accurately and the open caisson can be used normally.

The invention discloses organic fertilizer based on soil activity improvement. The organic fertilizer is prepared from the following raw materials: dry chicken manure, grass, pine nut shells, peanut shells, weathered coal, peat, urea, monoammonium phosphate, potassium chloride, Bacillus mucilaginosus agent, Trichoderma harzianum agent, polyvinyl alcohol, a water retaining agent, an EM bacterial agent and an appropriate amount of water, wherein the water retaining agent is prepared from the following raw materials in parts by weight: 70 parts of acrylic acid, 0.5-1 part of an azo-compound, 50-110 parts of sodium hydroxide, 3-5 parts of sodium persulfate, 200-250 parts of acetonitrile and a proper amount of water. The invention further provides a preparation method of the organic fertilizer.Organic fertilizer, secondary and trace elements and microorganisms are combined organically, the formula is reasonable, the organic fertilizer is more comprehensive and balanced in nutrition and good in use effect, and accordingly, the survival rate of crops is increased, and the photosynthesis efficiency is improved; meanwhile, by adding the water retaining agent, pores in the soil are enlargedalong with regular changes of water absorption expansion and water loss shrinkage, and the purposes of water retention, fertilizer retention, heat preservation and improvement of soil activity are achieved.

The invention relates to a clean and flat open metal curtain wall system, which includes adapters, vertical main keel steel pipes, horizontal horizontal auxiliary keel steel pipes and open curtain wall panels; the upper end surface of each open curtain wall panel is an inclined plane, and its The positioning plate on the top is movably connected with the horizontal auxiliary keel steel pipe and is provided with a card slot; under the open curtain wall panel, there are drainage grooves, drainage holes and inserting plates, and the inserting plates are inserted into the card slots; both sides of the open curtain wall panel The end is provided with a vertical side bend that coincides with the inclined plane and the end face of the gutter. The curtain wall system uses the rain curtain principle to realize step-by-step drainage, and to allow the air between the open curtain wall panels and the main structure and the outside air to circulate freely. The metal curtain wall system has the effect of retaining water and draining water, which increases the practicability of the open metal curtain wall, not only improves the installation efficiency, but also reduces the project cost, and also conforms to the national guidelines and policies of energy conservation and emission reduction.

The invention discloses a strain of Lactobacillus fermentum LF8005, which was deposited in the China Center for Type Culture Collection on November 9, 2020, the address: Wuhan University, Wuhan, China, and the deposit number: CCTCC NO: M2020704. The invention also provides a Lactobacillus fermentum culture and a preparation method thereof, as well as the effects of inhibiting Escherichia coli, Staphylococcus aureus and Candida albicans, removing free radicals and resisting oxidation, and preventing the occurrence of skin inflammation. The Lactobacillus fermentum is separated from traditional fermented dairy products to ensure its safety, and can secrete and produce macromolecular actives such as polysaccharides, glycoproteins, biotin, etc., thereby increasing the viscosity of the fermentation broth, and can be used as a natural active ingredient in skin care products. ; The product has low irritation, high safety, and is not easy to produce dependence. The effect on the skin is mainly to improve the skin environment and prevent and protect it. It adapts to the current development requirements of skin care cosmetics, and can be safely added to skin care products.

The invention discloses a method for conducting cuttage and rapid propagation on mulberries through flower mud. The flower mud is used as cuttage media for cuttage of the mulberries. Experiments show that the flower mud can completely meet the cuttage rooting medium requirement of the mulberries, and water retention can be effectively achieved; besides, permeability is good, rooting is facilitated, a plurality of roots can grow, and the roots are robust; watering is not needed any more before rooting, and labor and time are saved. Compared with a river sand medium mulberry cuttage method, the rooting time is 3-6 days ahead of time through flower mud cuttage, the roots are robust without rotting, and the rooting period is earlier than the budbreak period. Moreover, mulberry seedlings which survive through flower mud cuttage can be directly used for planting in production without seedling hardening. In addition, the seedlings are carried with the flower mud and can be packaged into boxes or binned, the roots cannot be hurt, freshness can be retained, and cost is low. Carrying and transferring are facilitated, selling transportation is facilitated, and the economic value is greatly increased. Hence, by using the flower mud as the cuttage media, the cost is low, the effect is good and it is guaranteed that the mulberry seedlings can develop and grow normally.

The invention discloses a construction method of a low-maintenance ecological wetland, which comprises the following steps: step 1, ecological survey; step 2, constructing an artificial lake; 3, constructing a wetland around the lake; step 4, improving wetland soil; Planting of plants; step 6, constructing hydrological ecology; the construction method of low-maintenance ecological wetland of the present invention is based on the self-regulation ability and self-organization ability of the ecosystem, and through reasonable plant selection and low-maintenance ecological configuration, the survival rate and The purification ability of water body, by maintaining water and soil, preventing water and soil erosion to achieve the purpose of water conservation, reducing human interference and investment, in order to achieve the construction of an ecological wetland system with low maintenance costs.