32results about How to "Change surface morphology" patented technology

The invention relates to a preparation method of modified biologically-activated filter fillings, comprising the following steps of: (1) cleaning an inorganic carrier with the grain diameter of 3-8 millimetres, sequentially carrying out acid cleaning, alkaline cleaning and drying to obtain dry fillings; (2) adding the dry fillings to a metal salt solution to carry out soaking and ultraphonic, drying and sintering to obtain sintering charges; (3) naturally cooling and drying the sintering charges to obtain dry sintering charges; (4) adding the dry sintering charges to a polymeric hydrogel solution containing trace elements and nutrient salts, carrying out soaking and ultraphonic and reacting in a saturated boric acid solution or a 3% calcium chloride solution so as to obtain crosslinked fillings; and (5) drying and naturally cooling the crosslinked fillings so as to obtain the modified biologically-activated filter fillings. The invention has the advantages of simple process and easy implementation; and in addition, the obtained modified biologically-activated filter fillings can increase the activity and the number of biomembranes, shorten the membrane-forming periods of biological aerated filter fillings and enhance the sewage treatment efficiency and the stability of a biological aerated filter.

The invention discloses a bacterial cellulose fermentation medium made from apple pomace and a method for producing the bacterial cellulose by utilizing the medium, and belongs to the field of biotechnology. The bacterial cellulose fermentation medium comprises cane sugar, beef extract, disodium hydrogen phosphate, citric acid, ethanol and apple pomace hydrolysate. The method comprises the following steps: (1) activating and propagating gluconacetobacter xylinum to obtain gluconacetobacter xylinum seed solution, incubating the gluconacetobacter xylinum seed solution into a bacterial cellulose fermenting medium for fermenting to obtain bacterial cellulose fermenting solution; and (2) treating a bacterial cellulose in the bacterial medium fermenting solution to obtain bacterial cellulose. The method has the advantages of low cost, simple process and the like, is convenient for industrial production, is good in stability and reproducibility, and is suitable for large-scale production, wherein the yield of the fermented bacterial cellulose is more than 15g/L.

A fertilizer provided by the invention is prepared from the following raw materials in parts by weight: 10-18 parts of urea, 5-9 parts of powdered rock phosphate, 3-7 parts of calcium superphosphate,10-18 parts of fermented earthworm dung, 5-9 parts of orange residue, 8-16 parts of peanut shell, 6-12 parts of waste mushroom sticks of lentinula edodes, 5-12 parts of apple pomace hydrolysate, 12-20parts of a sterilized composition, 2-6 parts of a fermentation microbial agent and a right amount of water. Harmful substances are not added from the formulation process to the production process ofthe fertilizer; after the fertilizer is adopted, the problems that cannot be solved by the convertional fertilizer that the water retention, fertility keeping ability and permeability of the soil arereduced, the residual fertilizer in plants pollutes the environment, and the like can be solved; the fertilizer also can accelerate the growth speed of sugar oranges while promoting the increase of fruit granules of the sugar oranges, and achieves the aim of green agriculture.

The invention belongs to the technical field of membranes, and relates to a preparation method of a high-power interception reinforced nano-structure composite membrane. According to the preparation method, an aqueous phase buffer system of interfacial polymerization is changed; adding of one or a combination of more of hydrosulfide radical, sulfite radical, bisulfite radical, bicarbonate radicaland carbonate radical is carried out, enough nanometer bubbles are generated in interfacial polymerization process, the nanometer polymerization structure is enhanced, the membrane surface morphologyis changed, and the nano-structure composite membrane with super high interception rate on inorganic high valence ions is obtained, and at the same time, the water flux attenuation rate of the membrane is minimized, and the pollution resistance and the hydrophilicity are significantly improved. According to the preparation method provided by the invention, through simpler and more convenient operation steps, a high-performance and low-cost preparation process is realized under the condition that raw materials and parameter variables are greatly reduced, and the application range of the composite membrane is greatly widened.

The invention discloses a preparation method of a reduced dye vat yellow 1. The preparation method comprises the following steps: grinding, kneading and extraction. Through pregrinding and segmented shearing actions, the prepared vat yellow 1 has good vibrance and tinting strength, and the quality of the product is obviously improved, so that the use values of the vat yellow 1 is enhanced.

The present invention relates to a method for producing a polymer, polymers and metal-polymer composites produced by the method. The method comprises providing one or more polymerisable monomers and providing a substrate comprising an activated metal surface, the activated metal surface comprising one or more compounds capable of initiating polymerisation of the one or more polymerisable monomers. The method comprises contacting the activated metal surface and the one or more polymerisable monomers to polymerise the one or more polymerisable monomers, thereby producing the polymer.

The invention relates to the technical field of edible fungus cultivation, in particular to an edible fungus cultivation base material and a preparation method thereof. The edible fungus cultivation base material is prepared from the following raw materials in parts by weight: 10-20 parts of Chinese yam residues, 5-10 parts of pineapple residues, 8-16 parts of fungus residues, 3-8 parts of microcystin, 6-9 parts of agar and 3-5 parts of compound sodium nitrophenolate. According to the edible fungus cultivation base material, the Chinese yam residues, the fungus residues and the pineapple residues are utilized, the raw material consumption of the cultivation base material in a traditional technology is reduced, the preparation cost of the edible fungus cultivation base material is saved, meanwhile, the problems that food processing leftovers are improperly treated, and consequently environmental pollution is caused are solved, waste is turned into wealth, and economic benefits are high;meanwhile, no harmful substance is added in the cultivation base material from the formula to the production process, the obtained base material is scientific and reasonable, the preparation method is simple, and sufficient and reasonable nutrients can be provided for growth of edible fungi.

The invention discloses a research method silicon substrate surface morphology based on a laser control nanostructure. The method comprises the following steps: 1, separately contacting a silicon substrate of a nanostructure by using materials with different thermal conductivities; 2, irradiating the surface of the silicon substrate of the silicon substrate via laser; 3, observing the surface morphology of the silicon substrate, and measuring a draw ratio of a projection on the surface of the silicon substrate; and 4, summarizing the change rule of the surface morphology of the silicon substrate. The research method disclosed by the invention has the following features: firstly, the surface morphology of the silicon substrate of the nanostructure is changed by the thermal conductivity of the contact material; secondly, the silicon substrate of the nanostructure is irradiated by the laser, thereby being clean and environmentally friendly, and generating no pollution; and thirdly, the time necessary for changing the surface morphology of the silicon substrate of the nanostructure is short, and the efficiency is high.

The invention belongs to the technical field of preparation of nanofiltration membrane materials, and particularly relates to a high-flux and inorganic-scaling-resistant medium-desalination nanofiltration membrane and a preparation method thereof. An amine water-phase solution, an oil-phase solution and a dimethylformamide solution are adopted to treat a polymer-based membrane, and through the special component proportion in the amine water-phase solution and the oil-phase solution, compared with a traditional nanofiltration membrane and a reverse osmosis membrane, the prepared high-flux and inorganic-scaling-resistant medium-desalination nanofiltration membrane has higher water yield under the same operation pressure, can moderately desalt, and has improved inorganic scaling resistance.

The invention provides a method for increasing the parasitic yield of Phellodendron sinii Y.C Wu, and relates to the technical field of planting. The method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu comprises the following steps: (1) cultivating hosts, (2) preparing parasitic bud ears of the Phellodendron sinii Y.C Wu, (3) treating branches of the Phellodendron sinii Y.C Wu, and (4) grafting and the like. The method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu is provided for the first time, so that the vacancy of the prior art is made up; parasitic leaves of the Phellodendron sinii Y.C Wu can be used for making tea, parasitic wood can be used as a traditional Chinese medicine, and the parasitic wood has the effects of clearing liver and improving vision and reducing uric acid, and can also be used for dispelling wind and cold, resolving qi and relieving dyspepsia and treating influenza and other symptoms; Through the method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu, the parasitic yield of the Phellodendron sinii Y.C Wu can be increased, and meanwhile damage to the hosts can be reduced.

The invention discloses a polyethylene antibacterial film, which is composed of a polyethylene film, an acrylic film and at least one layer of chitosan-lime essential oil composite film. The inventionalso discloses a preparation method of the polyethylene antibacterial film, and an application of the polyethylene antibacterial film in a package material having antibacterial efficacy and in chilled meat fresh-keeping.

The invention discloses a surface pore filling method for a rock model structural surface. The surface pore filling method comprises the following steps: (1) cleaning and maintaining the model structural surface; (2) filling surface pores of the model structural surface at one time, (2.1) after maintenance, completely moistening the structural surface under the heat-preservation maintenance state, enabling the surface pores to be filled with moisture, then using a dry towel to wipe off the surface moisture, and only enabling the surface pores to retain the moisture, (2.2) filling the pores on the surface, and (2.3) till the coagulation cycle, using the dry towel to slightly wipe off a part of powdered binding material powder on the surface again, covering the surface of the structural surface with a maintenance tool, and enabling the structural surface to be under the water retention state; (3) filling the pores on the model structural surface for the second time: till the filling cycle, repeating the steps (2.1) to the step (2.3), filling the pores which are not completely filled up for the second time, and completing the pore filling of the structural surface. The surface pore filling method disclosed by the invention can effectively fill the pores and promote the roughness coefficient measurement accuracy of the structural surface.