1687results about How to "Promote enrichment" patented technology

The invention relates to a formaldehyde adsorbent and a preparation method. The formaldehyde adsorbent consists of a basis material, a high molecular organic amine polymer and a polylol polymer, wherein the high molecular organic amine polymer and the polylol polymer account for 1 to 50 percent of the formaldehyde adsorbent, and the balance being the basis material. The preparation method for the formaldehyde adsorbent comprises steps of preparing formaldehyde reagent, preprocessing the basis material, solidifying and forming, and the like. When the formaldehyde adsorbent adsorbs formaldehyde, formaldehyde gas can quickly enrich on the surface of the formaldehyde adsorbent, and carries out chemical reaction to generate substances harmless to human body, so as to achieve the effect of uninterruptedly and thoroughly removing the formaldehyde; the adopted raw materials are nontoxic and harmless; the preparation technology has simple and easily controlled process; and the prepared formaldehyde adsorbent is safe and environment-friendly, and has no secondary pollution.

The invention provides a lipidosome-polymer drug-loaded nanoparticle and a preparation method and application thereof. The lipidosome-polymer drug-loaded nanoparticle comprises a three-layer structure, wherein the innermost layer is the drug-loaded nanoparticles formed by taking an amphiphilic cationic polymer as a carrier-coated chemotherapeutic drug; the intermediate layer is a platelet inhibitor layer adsorbed onto the surface of the drug-loaded nanoparticles; and the outermost layer is a lipid bilayer connected with tumor microenvironment responsiveness polypeptides. The lipidosome-polymer drug-loaded nanoparticle disclosed by the invention is capable of specifically targeting tumor tissues, has tumor microenvironment responsiveness, and can achieve the effects of improving tumor vascular permeability without influencing functions of blood vessels at normal tissue or cell parts, enhancing permeability and retention of the drug-loaded nanoparticles to tumor cells, enhancing the EPR effect, improving enrichment of the drug-loaded nanoparticles at tumor location and realizing high tumor killing efficiency.

The invention discloses a composite soldering material for soldering a titanium alloy and a ceramic or a ceramic matrix composition material and a method for soldering by using the same, and solves the problems that a welding joint obtained by soldering the titanium alloy and the ceramic or the ceramic matrix composition material through the conventional soldering material is easy to crack and has low strength, and the introduction of a ceramic phase in a method of introducing the ceramic phase into the soldering material causes reduction of wettability of a connecting layer for a base metal. The composite soldering material consists of Cu, Ni and a reinforced phase, wherein the reinforced phase is TiB2 powder or SiC powder. The method comprises the following steps of: performing ball milling on the Cu, Ni and TiB2 or SiC powder, uniformly mixing, and coating to-be-welded surfaces of the titanium alloy and the ceramic to obtain to-be-welded parts; and putting the to-be-welded parts into a vacuum brazing furnace for vacuum brazing treatment. In the soldering process, the composite soldering material has good wettability for the ceramic and ceramic materials, and the obtained welding joint has no crack, the shear strength between 16 and 45MPa, and good mechanical properties.

The invention discloses a pyridine-degrading bacterium as well as a composite bacterial agent, a preparation method and uses thereof. The newly-separated Rhodococcus pyridinovora KT-J002 CGMCC No.2789 and Cellulomonas sp KT-J007 CGMCC No.2788 not only can effectually degrade the high concentration pyridine, but also has tolerance or degradation ability for toxic substances such as benzene, phenol, dimethylbenzene, quinoline, cyanide and the like; the composite bacterial agent composed of Rhodococcus pyridinovora KT-J002 CGMCC No.2789, Cellulomonas sp KT-J007 CGMCC No.2788, Paracoccus d enitrificans W12 CGMCC No.1673, Micrococcus luteus ATCC 49442 and Arthrobacter crystallopoietes ATCC 15481 is used for environmental improvement, can effectually degrade the pyridine and is particularly suitable for the biological treatment of coking waste water.

The invention provides a method for treating organic waste gas by combining photocatalysis and microorganisms. Simultaneously, the invention also discloses a device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms and application thereof. The method for treating the organic waste gas by combining the photocatalysis and the microorganisms comprises the steps of physical dust removal, photocatalyst catalytic oxidation, microorganism purification, and the like, and can effectively eliminate total suspended particulate matters in the organic waste gas and volatile organic compounds in waste gas. The device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms is applied to treating industrial organic waste gas, and is particularly applicable to treating the organic waste gas in various industrial organic waste gas emission workshops.

The invention relates to the field of malting and in particular relates to a method for preparing malts with high malt aroma and beer thereof. The method mainly comprises the following steps: selecting wheat, raw material pretreatment, steeping, sprouting, green malt drying, kilning and removing roots. According to the steeping and sprouting process, the sprouting uniformity is improved, lots of amino acids and reducing sugars are generated under the optimum water activity conditions, the degree of a Maillard reaction is controlled through the drying and gradient temperature rise kilning process, specific malt aroma components are generated, and due to sensory evaluation, the malt has pure and strong aroma, is clean and coordinative and does not have burnt taste and other odors. The method is used for improving the content of malt aroma substances in the malt, the defects that the malt prepared in the prior art is not obvious in aroma and partial specific malts have obvious burnt taste except certain malt aroma are overcome, the technical problem that the malt is aromatic but easily burnt is effectively solved, pure and strong malt aroma is presented, the malt can be used for preparing high-malt aroma wort or high-malt aroma beer, and the typical flavor characteristics of the malt aroma of the beer are reflected.

The invention belongs to the technical field of environmental protection, and particularly relates to a multiple combined repairing system and a multiple combined repairing method for arsenious organism in the soil. The repairing system consists of a microwave repairing system, a chemical oxidation system and a plant repairing system; the microwave repairing system is used for heating the to-be-repaired soil, collecting gas generated by volatile organisms and injecting oxidant into the soil so as to enable the arsenious organism to have oxidation reaction under the microwave catalysis, the trivalent arsenic is oxidized into pentavalent arsenic, then the pentavalent arsenic is enriched by planting hyperaccumulator, pteris vittata, and the microwave repairing system and the plant repairing system are alternately operated. The microwave repairing method is combined with the chemical oxidation method to intermittently and alternately repair the soil in combination with plant repair, so that the arsenious organism in the soil can be effectively and further treated.

The invention relates to a pH and oxidation-reduction dual-sensitive layer cross-linking nanoparticle as well as a preparation method and an application thereof. A hydrophilic layer which at least contains PCB (Polycarboxylate Betaine) or PEG (Polyethylene Glycol) is positioned on the surface of the nanoparticle, a hydrophobic nuclei which at least contains a pH-sensitive polymer unit is positioned in the nanoparticle, and an S-S (Disulfide Bond) cross-linking layer which is formed through cross-linking reaction between PDS (Polymethacrylamide Ehtylpyridine Disulfide) units is positioned between the hydrophilic layer and the hydrophobic nuclei. A tumor targeted group can be modified on the hydrophilic layer positioned on the surface of the pH and oxidation-reduction dual-sensitive layer cross-linking nanoparticle, and the gathering of the nanoparticle on a tumor tissue and the endocytosis of the nanoparticle on the tumor cell are accelerated through the specific targeted effect of the nanoparticle on a tumor cell. The pH and oxidation-reduction dual-sensitive layer cross-linking nanoparticle disclosed by the invention has the advantages of good biocompatibility and low toxicity. According to the pH and oxidation-reduction dual-sensitive layer cross-linking nanoparticle, a cross-linked structure is dissociated under the action of glutathione inside the tumor cell, so that the release of a medicine is promoted. The preparation method disclosed by the invention is simple, convenient, good in stability and conveniently operated and popularized.

This invention is directed to aragonite and calcite hydrogel biomatrices, optionally seeded with precursor cells and uses thereof in tissue engineering, regeneration and repair, including in inducing or enhancing bone formation, cartilage formation or a combination thereof in a subject, and kits related thereto.

The invention relates to a kind of cold-rolled hot-galvanized complex phase steel. Chemical components of the cold-rolled hot-galvanized complex phase steel comprise, by weight, 0.05-0.13% of C, 0.1-0.5% of Si, 1.5-2.5% of Mn, less than or equal to 0.015% of P, less than or equal to 0.015% of S, 0.1-0.6% of Al, 0.2-0.6% of Cr, 0.1-0.5% of Mo, 0.01-0.06% of Nb, 0.01-0.06% of Ti, and the balance Feand inevitable impurities. The invention further relates to a preparation method of the cold-rolled hot-galvanized complex phase steel. The preparation method comprises the following steps of castingmolten steel into a steel billet; conducting hot rolling on the steel billet to obtain a hot-rolled plate and conducting cold rolling on the hot-rolled plate to obtain a cold-hardened steel strip; conducting continuous galvanizing and annealing process treatment on the cold-hardened steel strip to obtain a finished cold-rolled hot-galvanized complex phase steel product. The bending performance ofthe cold-rolled hot-galvanized complex phase steel is improved on the basis of meeting the requirement for strength.

The invention provides a targeted photothermal black phosphorus nano-preparation, which is prepared from a black phosphorus nano-slice, polyethylene glycol absorbed on the surface of the black phosphorus nano-slice by means of electrostatic attraction, and folic acid connected to the polyethylene glycol by means of an amide bond, wherein one end of the polyethylene glycol is amino, and the other end of the polyethylene glycol is imino; nitrogen atom of the imino and carbonyl carbon atom of the folic acid are connected with each other so as to form the amide bond; the folic acid is exposed at the outermost layer of the nano-preparation. The targeted photothermal black phosphorus nano-preparation is high in stability, good in target recognition ability and excellent in light-heat property, is capable of effectively killing cancer cells, and can be used for performing targeted photothermal treatment on cancers at the cellular level. The invention also provides a preparation method and application of the targeted photothermal black phosphorus nano-preparation.

The invention relates to a subcritical hydrothermal treatment-based efficient recycling treatment process for sludge. According to the treatment process, sludge with the solid content of 10 to 25 percent of a sewage treatment plant is placed into a hydrothermal reaction kettle for 5 to 30 minutes at the subcritical high temperature of 200 to 300 DEG C and under the high pressure of 1.6 to 8.6 MPa, so that intracellular substances in sludge are fully dissolved, solid organic matters are fully dissolved and hydrolyzed and are partially decomposed; the release of bound water and surface water in the sludge facilitates improvement on the dehydration performance of the sludge. The sludge which is subjected to hydrothermal modification is dehydrated to enable the solid content of the dehydrated sludge to be not higher than 60 percent, and then aerobic composting stabilizing treatment is performed. The filtrate which is rich in dissolved organic matters and is obtained by dehydrating the sludge enters a high-speed anaerobic digestion system for fully recovering methane. According to the technology, the hygienization, the recycling and the stabilization of the sludge are realized effectively; the subcritical/supercritical reaction speed is high, the subsequent efficient anaerobic digestion hydraulic retention time is short, and the solid residues generated after hydrothermal modification dehydration are few, so that large-scale urban sludge treatment capacity can be realized by adopting small-capacity reactors in a hydrothermal link, an anaerobic link and an aerobic link of the treatment process.

The invention discloses a comprehensive washing remediation method for heavy metal contaminated soil. The comprehensive washing remediation method comprises the following steps: ploughing and smashing soil, applying acid and alkaline washing agent solid materials, then drawing water when ploughing, washing and dissolving heavy metal out of the soil, and transferring the heavy metal into washing water; guiding the washing water into a sedimentation tank, adding a coagulant, and removing the heavy metal in the washing water through coagulation and sedimentation; draining the washing water into a microorganism and biochar purifying tank, utilizing biochar bags to absorb the heavy metal, and at the same time, enriching the heavy metal through microorganisms on biochar surfaces; and collecting used biochar bags, adding a dilute acid solution into the biochar bags, stirring, and separating the heavy metal absorbed to the biochar surfaces. The invention further discloses a corresponding comprehensive washing remediation system. The technical scheme of the invention greatly increases the absorption rate of the heavy metal, avoids heavy metal secondary pollution, is simple in technical process, is high in automation degree and is low in cost.

The invention relates to a drug target virtual screening method based on interactive fingerprints and machine learning. According to the method, based on traditional molecular docking, the interactive fingerprints of known active and non-active micromolecules and target protein are trained through machine learning to obtain a screening model of targets, and the obtained model is used for virtual screening. The specific targets are specifically trained, the specificity of each kind of targets is fully considered, and the defect of insufficient fitting of a traditional scoring function is avoided; interaction energy of each micromolecule and each residue in a binding pocket is calculated, so that effective binding sites or binding modes can be found; non-linear fitting is carried out through machine learning, and compared with linear fitting, the correlation or coupling effect between all the interaction energy can be better processed; by means of the method, enrichment of active molecules is better promoted.

The invention discloses an immobilized nitrobacteria enrichment culture method and device in a sewage treatment process. A sequencing-batch biomembrane activated sludge process is utilized to perform enrichment culture on nitrobacteria: dewatered sludge is inoculated in an immobilized nitrobacteria culture device, and an enrichment culture solution is added; and in the nitrobacteria enrichment culture process, the biomembrane ammonia nitrogen load is gradually enhanced, and the pH value is controlled. The enrichment culture solution is formed by mixing NH4HCO3 and pretreated municipal sewage, the ammonia nitrogen concentrations are respectively 100, 300, 500, 700 and 1000 mg/L, and the COD (chemical oxygen demand) concentration is 30-60 mg/L. By controlling the immobilized nitrobacteria culture device, the DO in the reaction mixture is 2-6 mg/L, the pH value is 6.5-8.0, the biofilm-formation acclimatization culture temperature is 10-14 DEG C, and the enrichment purification culture temperature is 15-25 DEG C. The device can be used for culturing nitrobacteria at low temperature, and the nitrobacteria content is up to 40-45%. The immobilized nitrobacteria have high low-temperature nitration resistance, and can treat the wastewater of which the ammonia nitrogen concentration is up to 1000 mg/L, so that the ammonia nitrogen in the wastewater is lowered to 1.0 mg/L or below.

The invention belongs to the treatment field of waste water, and provides a method for converting active sludge into autotrophic denitrified sludge based on a mixed type continuous flow reactor. The method which is used for converting the common active sludge into the autotrophic denitrified sludge by the continuous flow reactor specifically comprises two stages. The first stage comprises the steps of: converting anaerobic or anoxic sludge into a nitrosation status by the condition which controls the organic matter concentration (COD (chemical oxygen demand) is less than 20mg/L), the water dissolved oxygen concentration (1-0.5mg/L), and the inflowing ammonia nitrogen concentration (50-450mg/L), and restraining the growth of the other microorganisms step by step by the running condition and the washing characteristic of the continuous flow reactor. When the cumulative percentage of the nitrite is more than 60%, the second stage is started. The second stage comprises the step of: promoting the nitrosation status to be converted into the autotrophic denitrification status by the condition which improves the ammonia nitrogen concentration (450-550mg/L), reduces the dissolved oxygen (0.5mg/L), and keeps a certain PH value (7.5-8.0) to form a system which is coupled nitrosified microorganism to anammox microorganism. The practice proves that the system can stably run for a long term. After entering into the practical running stage of the waste water treatment, the method leads the ammonia nitrogen removing rate and the total nitrogen removing rate to be respectively more than 80% and 70% by the reaction which is remained only by the natural reoxygenation or a small quantity of aeration without aeration.