70results about How to "High adsorption properties" patented technology

The invention provides a method and a system for treatment and recycling of feces and waste from livestock and poultry culture. The system comprises a waste water organic matter accumulating system, an anaerobic fermentation system, a sludge return system and a waste water recycling system. The method comprises the following steps: based on the characteristic that active sludge can highly absorb organic matters in waste water, accumulating the organic matters in the waste water from livestock and poultry culture; generating methane by anaerobic fermentation of sludge enriched with high-concentration organic matters together with dried feces so as to realize the recycling of biomass energy; and further treating low-concentration waste water after enrichment of organic matters by using constructed wetland and a sterilization method to meet water quality standards and to realize zero discharge of waste water. In addition, part of sludge in a sedimentation tank and biogas residues generated by anaerobic fermentation are returned and aerated in a regeneration tank to recover the high absorption activity so as to circularly absorb the organic matters in the waste water, thereby realizing recycling of the sludge and the biogas residues. The method and the system realize the treatment and recycling of feces and waste from livestock and poultry culture as well as recycling of biomass in the waste water and zero discharge of the waste water, and have the advantages of simple structure, low investment and operation cost, high treatment efficiency and the like.

The invention relates to a high-cadmium-adsorption filamentous fungus Paecilomyces lilacinus XLA, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, weighing a pot experiment soil sample used for heavy metal restoration and having a content of heavy metal cadmium of 50mg/Kg, adding to sterile water with glass beads, oscillating on a constant temperature shaking table, allowing an obtained solution to stand, taking an obtained supernatant, and carrying out serial dilution; 2, coating a Martin flat containing 60mM of cadmium with different dilution rates of dilutions, allowing the obtained flat to stand for a moment, inverting on a constant temperature culturing box, and culturing; 3, carrying out streaking purification of single colonies growing on the flat, coating the Martin flat with the obtained single colonies, and culturing; 4, carrying out separating screening to obtain the Paecilomyces lilacinus XLA stably resisting cadmium, and preserving on a PDA inclined plane for later use. The Paecilomyces lilacinus XLA is preserved and has a preservation number of CCTCC NO:M2012135. Viable and non-viable organism of the XLA can efficiently adsorb and remove the heavy metal cadmium in heavy metal sewage, so the XLA has the advantages of low cost and simple technology, and has an efficient restoration potential of heavy metal polluted soil and water.

The invention discloses a silver nanoparticle modified carbon nanotube-egg membrane composite surface enhanced Raman scattering (SERS) substrate as well as a preparation method and application thereof. The SERS substrate is composed of a carbon nanotube loaded on an egg membrane and silver nanoparticles modified on the carbon nanotube, wherein the carbon nanotube is 0.5-2mu m long and is 30-50nm in diameter, and sizes of the silver nanoparticles are 5-10nm. The preparation method comprises the following steps: dissolving egg shell in an acetic acid solution to obtain an egg membrane, ultrasonically processing the egg membrane in an ammonium solution to obtain alkalified egg membrane, then dispersing a carbon nanotube processed by carboxylation in de-ionized water and ultrasonically processing to obtain a carbon nanotube solution, and ultrasonically processing the alkalified egg membrane in the carbon nanotube solution to obtain the egg membrane loaded with the carbon nanotube on the surface; and finally, sputtering silver on the egg membrane in a sputtering instrument to obtain a target product. The SERS substrate disclosed by the invention can serve as an active substrate for surface enhanced Raman scattering; and through a laser Raman spectrometer, content of rhodamine or parathion-methyl or polychlorinated biphenyl PCB-3 or bovine serum albumin attached on the substrate is measured.

The invention relates kinds of method for intensifying filter effictiveness with filter-media modification and dynamic casting of medicine in treatment of water and sewage water, the filter-media modification and dynamic casting of medicine intensifying filter effictiveness method. This invention can be through with the steps as follows: (1) before filtering, decline negative electricity in surface of filter media, or increase modified ability of positive electricity in surface of filter media; (2) in procedure of filtering, cast medicine for intensifying filter efficiency continually. The step of (1) can germinate the particle, in surface of which contains the elements such as Iron, Manganese, Calcium, Silicon, Magnesium, Aluminum, and so on. So it increases electric potential to the surface of filter media, improves absorbability of impurity particle and makes this granule be prone to depositing in the surface of filter media. The step of (2) increases electric potential to the surface of colloidal particle in water by casting medicine for intensifying efficiency continually in filtering procedure, so that it can increase absorbability of colloidal particle in the surface of filter media. The organic association with couple of devices can increase absorbability of colloidal particle in the surface of filter media in water, and intensify removal ability of turbidity in water.

Provided are a modified nanometer bamboo charcoal mask and a manufacturing method thereof. The modified nanometer bamboo charcoal mask comprises an inner mask and an outer mask, wherein the inner mask is provided with a dismounting opening, and a filer layer is arranged in the dismounting opening. The inner mask and the outer mask of the mask and a filer layer base plate are made of an electrets melt-blowing polypropylene fiber non-woven fabrics, the filer layer uses chitosan as a capsule wall material, microcapsules are made from modified nanometer bamboo charcoal powder, beewax is used as an adhesive for arranging the microcapsules on the non-woven fabrics. The modified nanometer bamboo charcoal powder are modified by adopting nanometer titanium dioxide. The modified nanometer bamboo charcoal mask is green, environment-friendly, safe and efficient, has the broad-spectrum antibacterial effect and has good washability due to the fact that the beewax is used as the adhesive to arrange the microcapsules on the non-woven fabrics.

The invention belongs to the field of polymer material processing, and particularly relates to a cellulose nanofibril reinforced polyurethane fiber as well as preparation method and application thereof. The preparation method of the cellulose nanofibril reinforced polyurethane fiber is divided into two steps that: in a first step, thermoplastic solid polyurethane is dissolved in a solvent, a certain concentration of a polyurethane solution is prepared, and cellulose nanofibrils are added to adjust mass ratio of the cellulose nanofibrils and the thermoplastic polyurethane, a polyurethane spinning solution is prepared after vacuum defoaming; in a second step, spinning, curing, draft matio and drying conditions are controlled, and the cellulose nanofibril reinforced polyurethane fiber is prepared by wet spinning. The the cellulose nanofibril reinforced polyurethane fiber not only has good elongation, but also greatly improves tensile strength, and resulting clothes are light and soft, comfortable to wear and have a good hand feeling.

The invention relates to an integrated harmless dead livestock treatment system and a process thereof. The integrated system comprises a drying device, an incinerating device, a pyrolysis device, a dust collection device, a tail gas treatment device and a circulating fan, wherein the air outlet of the incinerating device is connected with the air inlet of the drying device, the drying device is connected with the pyrolysis device and is connected with the dust collection device and the tail gas treatment device in sequence; the air outlet of the pyrolysis device is connected with the incinerating device. The system adopts a water wash and urea/H2O2 wet process as well as the desulfurization and denitration process and biological carbon adsorption process for combined treatment of the dried tail gas, not only is the easily water dissolved component absorbed, the usage of chemical reagent in subsequent treatment steps reduced, the temperature of reaction liquid lower and the work safety improved, and also SO2, H2S, NOx and NH3 gases can be removed simultaneously, ammonium sulfate can be recycled and no secondary pollution is caused.

The invention which belongs to the nanomaterial preparation field concretely relates to a nesting doll-shaped manganese oxide nanocrystalline grain composite particle and a preparation method thereof. The nesting doll-shaped manganese oxide nanocrystalline grain composite particle is characterized in that: the shape of the particle is spherical, the particle size is 0.7-7mum, and the BET specificsurface area is 20-310m<2>/g; and the structure of the particle has a shell-core nesting doll shape, the shell and the core are respectively composed of manganese oxide nanocrystalline grains, and surfaces of the shell and the core are full of mesopores. The nesting doll-shaped manganese oxide nanocrystalline grain composite particle has the advantages of spherical shape, controllable dimension, good fluidity, shell-core nesting doll-shaped structure, realization of a case that surfaces of the shell and the core are full of mesopores, large specific surface area, and no need of a surfactant, convenience and easy implementation, and low cost of the preparation process.

The invention provides preparation and application of a magnetic conductive polymer/sepiolite/humic acid composite microsphere, and belongs to the technical field of preparation of polymer nano composite materials. The preparation method comprises the steps of firstly mixing an aqueous solution of sepiolite with a humic acid aqueous solution, and adjusting the pH value of the mixed solution, so asto prepare a sepiolite/humic acid composite particle aqueous solution, mixing the sepiolite/humic acid composite particle aqueous solution with a magnetic ferroferric oxide cyclohexane solution, conducting shearing at a high speed to prepare a Pickering emulsion, then adding an aniline(pyrrole) monomer, conducting uniform dispersion, then slowly dropwise adding a hydrochloric acid solution in which an oxidizing agent ammonium persulfate is dissolved into the emulsion, collecting a reaction product, and conducting filtering, washing and drying, so as to obtain the magnetic polyaniline(polypyrrole)/sepiolite/humic acid composite microsphere. The preparation method is simple in preparation process and controllable in conditions, and the prepared magnetic polyaniline(polypyrrole)/sepiolite/humic acid composite microsphere has high adsorption characteristics and excellent environmental friendliness, and is suitable for the fields of industrial wastewater treatment and the like.

The invention discloses a plant polysaccharide aerogel heating non-combustion flavor smoke generating material and a preparation method thereof. The flavor smoke generating material is composed of a plant polysaccharide aerogel flavor smoke section core material and a paper tube wrapping the plant polysaccharide aerogel flavor smoke section core material, the plant polysaccharide aerogel flavoredsmoke section core material is prepared by mixing 30-50 parts by weight of plant raw material particles, 10-50 parts by weight of a smoke generating agent, 5-10 parts by weight of essence and fragrance, 1-10 parts by weight of an aerogel framework material and 30-100 parts by weight of water and then carrying out sol-gel and vacuum freeze drying. The material is prepared in a vacuum freeze dryingmode, the interior of the material is loose and porous, and the plant raw material particles, the smoke agent and the essence and flavor mixed material are evenly distributed in the aerogel frameworkmaterial. When the flavor smoke section is heated, heat can be uniformly diffused to the periphery in the material of the flavor smoke section, so that smoke and fragrance are slowly released more uniformly, and the overall stability is better.

The invention discloses a method for preparing a dye adsorbent from waste bricks and an application of the adsorbent in adsorption of dye contaminants from polluted water. The method at least comprises the step of soaking waste brick granules with an acidic solution. According to the method and the application, the specific surface area of the waste bricks treated by the method is remarkably increased, and the adsorption capacity is remarkably higher than that of unmodified waste brick powder; meanwhile, an isoelectric point of a waste brick granule raw material is lowered, and the acid-pickled waste brick granules easily show electronegativity in wastewater, so that the adsorption characteristic to cationic dyes is improved; the method has the advantages that wastes are treated with wastes, equipment and processes are simple, environmentally friendly and the like, thereby being applicable to treatment of cationic and acidic dye wastewater and having a relatively large popularization prospect.

The invention discloses a flame-retardant cable material. The flame-retardant cable material comprises the following raw materials in parts by weight: 60-85 parts of polypropylene, 10-35 parts of SEBSresin, 2-8 parts of LDPE, 5-15 parts of maleic anhydride grafted polypropylene, 0.2-1.0 part of pentaerythritol stearate, 1-6 parts of magnesium stearate, 20-35 parts of light calcium carbonate, 15-25 parts of magnesium hydroxide, 5-10 parts of modified hydrotalcite, and 10-20 parts of modified ammonium polyphosphate. The prepared cable material has good mechanical properties and flame-retardantproperties through synergistic reinforcement and flame retardancy.

The invention provides an environment-friendly bamboo charcoal mask and a manufacturing method thereof. The mask comprises an inner mask body and an outer mask body, the inner mask body is provided with a detachment opening, a filtering layer is arranged in the detachment opening, the inner mask body, the outer mask body and the filtering layer are all made of electret melt-blown polypropylene fiber non-woven fabrics, chitosan serves as a capsule wall material of the filtering layer, nanometer bamboo charcoal powder serves as a core material to be made into micro capsules, and the microcapsules are arranged on the non-woven fabrics through beewax serving as adhesive agents. The chitosan, the bamboo charcoal powder and the beewax are all natural materials, the obtained product is environmentally friendly, safe and efficient and has a broad-spectrum antibacterial function, the microcapsules are arranged on the non-woven fabrics through the beewax serving as the adhesive agents, and good washability is achieved.

The invention discloses a hollow-structure nano tungsten oxide wire prepared through in-situ growth of graphene oxide. The hollow-structure nano tungsten oxide wire is prepared by mixing a certain amount of graphene oxide, a precursor compound containing tungsten, absolute ethyl alcohol and deionized water. Compared with a conventional high-pressure reaction kettle preparation method adopting a polytetrafluoroethylene lining, the hollow-structure nano tungsten oxide wire disclosed by the invention has the advantages that the energy consumption is lower, the cost is lower, industrial production investment is low, the product cost is low, and industrial batch production can be conveniently realized.

The invention provides a fast detecting method of a vitamin K1 used for preventing coupling hemorrhage after vaccine injection.The method comprises the specific operation steps of preparing electrodes, utilizing the electrodes to carry out testing, setting up a standard curve and preparing and measuring samples.The modified electrode and the unmodified glassy carbon electrode are adopted to carry out the electrochemical reaction of the vitamin K1, it is found through comparison that the current response of the modified electrode to the vitamin K1 is far larger than that of the unmodified glassy carbon electrode, it shows that the response of nanometer titanium oxide to the vitamin K1 has a certain sensibilization effect, due to the porous structure of the nanometer titanium oxide membrane electrode, the specific area is increased, accordingly, the adsorption characteristic is enhanced, and more vitamin K1 can be enriched.According to the method of using the modified electrode to detect the vitamin K1 in serum, the serum does not need to be subjected to complex pretreatment, it only takes 100 s to detect each sample, detecting is convenient and fast, and the requirement for detecting a large number of the serum samples can be fully met.