34results about How to "Timely degradation" patented technology

The invention relates to a double-degradable mulching film, comprising an additive type degradable mulching film and compostable degradable mulching films arranged on two sides of the additive type degradable mulching film. The invention also relates to a specific recipe and a manufacturing method. The mulching film and the manufacturing method solve problems that the buried part of the additive type degradable mulching film is slow in degradation, and is not environmentally-protecting, and the compostable degradable mulching film is short in incubation and cannot satisfy heat insulation and soil moisture preservation requirements of crops.

The invention discloses a fast degradation on-site treatment process for kitchen garbage. The process comprises the following steps: domestic garbage and a percolate in the kitchen garbage are sortedand separated, and the separated domestic garbage is crushed into particles with diameter of 10-30 mm; the particles are stirred, and the stirred particles are squeezed and dewatered, so that the water content is 40%-60%; various enzymes are produced by microbial degradation bacteria so as to biodegrade kitchen waste in the squeezed and dewatered particles and produce organic fertilizer for recycling; the sorted and separated percolate, dilution water produced by crushing and liquid produced by squeezing and dewatering are mixed into a mixed solution, electrolysis, air floatation, hydrolytic acidification and biochemical process treatment are performed on the mixed solution for oil-water separation of the mixed solution, so that waste water produced by oil-water separation meets the discharge standard, and oil produced by oil-water separation is recycled. Residual value of the kitchen garbage can be fully utilized, the transportation cost is saved, and the kitchen garbage is rapidly degraded in time.

The invention discloses a method for denitrifying wastewater generated in the process of producing an FCC (fluid catalytic cracking) catalyst. The method comprises the step of adding nitrobacteria and nitrous acid denitrifiers to sewage, wherein the ammonia nitrogen containing sewage treatment temperature is 18-40 DEG C; the dissolved oxygen is 0.2-3mg/L; and the pH value is 7.5-8.5. The method adopts autotrophic bacteria and heterotrophic bacteria which are subjected to combination of superiority to serve as reinforced microorganisms for treating wastewater, adopts different addition modes, can achieve removal of ammonia nitrogen, total nitrogen and CODcr in the same reactor, has a good wastewater treatment effect, truly achieves short-cut nitrification and denitrification or simultaneous nitrification and denitrification of the ammonia-containing wastewater generated by producing the catalyst by being combined with high-efficiency devices, and achieves up-to-standard discharge of pollutants such as ammonia nitrogen and the like in the wastewater.

The invention discloses methane dry fermentation compound bacteria, which comprise 25% to 45% of cellulose decomposing bacteria, 9% to 15% of protein decomposing bacteria, 8% to 15% of fat decomposing bacteria, 8% to 12% of hydrogen-producing acetogenic bacteria, 18% to 31% of sulfate reducing bacteria and 2.5% to 9.5% of methanogenic archaea according to bacterium number percentages. The compound bacteria of microorganisms with a complete methane fermentation function are capable of processing methane dry fermentation raw materials with TS content as 20% to 30% and stable in methane production effect and apt to control methane production.

The invention relates to a polyglycollide PGA-woven urethra scaffold for repairing urethral. The scaffold is prepared by a two-dimensional and triaxial method. The method comprises the steps of: (1) taking 48tex PGA filament, weaving PGA on a core rod of which a gear ratio is 132/28, and setting the engine speed to between 6 and 7; (2) sizing at a temperature of between 90 and 105 DEG C for 5 minutes; and (3) removing a PGA weaving layer from the core rod, soaking the PGA weaving layer in 2.5 to 3 weight percent chitosan serum for 30 minutes, naturally airing the weaving layer, then placing the weaving layer in a freeze drying environment at 50 DEG C below zero for 4 hours, and obtaining the scaffold. The method for preparing the scaffold has the advantages of simpleness and low cost; and the obtained woven urethra scaffold has the apparent morphology of a bionical urethra, and is thoroughly degraded.

The invention discloses an absorbable orthopedic instrument material capable of prompting growth of bone tissues and a preparation method thereof. The material is prepared by compounding a medical absorbable high-molecular polymer, a degradable pure magnesium or magnesium alloy which is loaded with BaTiO3 piezoelectric ceramics, can conduct piezoelectric signals and serves as a conductive carrier material, and grapheme for improving the electric polarization effect. When the absorbable orthopedic instrument material is in use, an electric signal produced by the piezoelectric ceramics under the action of an external load can be effectively conducted to organism tissues around an orthopedic instrument by the conductive carrier material to stimulate the growth of early hard tissues at a bone injury position and promote healing of the bone tissues. The BaTiO3 piezoelectric ceramics is loaded on the conductive carrier material through a dual loading technology consisting of electrophoresis-micro-arc oxidation and sol sealing, coating and film forming. Meanwhile, the conductive carrier material and the grapheme can also enhance the polarization effect and stress sensitivity of the piezoelectric ceramics. A bar material or a plate material is prepared firstly by means of a thermal die pressing, extruding or pulling method, and the orthopedic instrument is made by means of polarization and machining.

The invention discloses photo-biodegradable polypropylene fiber in the field of textiles. The photo-biodegradable polypropylene fiber comprises a fiber body, anti-aging agent powder uniformly distributed in the fiber body and photo-biodegradation agent microcapsules uniformly coated on the surface of the fiber body; the photo-biodegradable polypropylene fiber has excellent anti-aging performance when in use; and after being discarded, the photo-biodegradable polypropylene fiber can be degraded under the effect of sunlight and microorganisms in soil. The invention also discloses a preparation method of the photo-biodegradable polypropylene fiber. The method comprises an anti-aging agent preparation step for preparing anti-aging agent powder, a photo-biodegradation agent preparation step for preparing photo-biodegradation agent powder, a photo-biodegradation agent microcapsule preparation step for preparing photo-biodegradation agent microcapsules and a spinning step in which the anti-aging agent and the fiber-level polypropylene slices are subjected to melt blending in a screw extruder, the polypropylene fiber is extruded, and the photo-biodegradation agent microcapsules are uniformly coated on the surface of the polypropylene fiber to obtain the photo-biodegradable polypropylene fiber.

The invention discloses a redox innocent treatment system and method for waste pollutants. A pollutant inlet pipe, a degradation chemical agent adding pipe, a first ozone water adding pipe and a firstprecipitation blow-off pipe are arranged on a reduction reaction chamber in a communicating mode, a first ultrasonic generator is in signal connection with a low-power switch, a medium-power switch and a high-power switch in the first ozone water adding pipe, a second ultrasonic generator in signal connection with a low-power switch, a medium-power switch and a high-power switch in the second ozone water adding pipe, three stirring blades and a balance weight blade are fixedly arranged on a rotating rod, and a cleaning brush is fixedly arranged on an extension plate and used for brushing a filter screen cover. According to the redox innocent treatment system and method for the waste pollutants, the power of the ultrasonic generators can be automatically adjusted according to the flow of ozone water, the stirring blades and the balance weight blade are arranged in the system, liquid mixing can be promoted, the inlet end of a communicating pipe can be prevented from being blocked as well, and the system and method are quite worthy of popularization.

The invention relates to a water treatment agent, in particular to a water treatment agent for a pond. The water treatment agent comprises the following raw materials in parts by weight: 2-3 parts ofrice bran, 2-3 parts of polygonum hydropiper powder, 3-4 parts of wheat bran, 1-2 parts of a brevibacillus laterosporus concentrate, 3-4 parts of melica scabrosa powder, 2-3 parts of amino acid, 5-6 parts of zeolite powder, 2-3 parts of photosynthetic bacteria, 3-5 parts of brown sugar powder and 150-250 parts of drinking water. The preparation method comprises the following steps: sequentially adding the raw materials into drinking water, carrying out mixing, and then carrying out standing for 2-4 hours to obtain the water treatment agent. After the rice bran, the wheat bran and the brown sugar powder are fermented with water, lactic acid viable bacteria are generated, generated metabolites and amino acid small peptides play a role in slowly releasing a carbon source and organic acid, andsimultaneously the pH value of a water body can be reduced; in addition, a carbon source can be supplemented, the bacterial phase of the water body can be stabilized, and nutrition is provided for probiotics; rich nutrient elements are provided for algae, and the algae phase is stabilized; and propagation of miscellaneous bacteria can be effectively inhibited by polygonum hydropipiper.

The invention relates to the technical field of medicines, in particular to a CHMP2B protein targeted inhibitor and application thereof in preparation of medicines for preventing or treating ischemic heart disease. The invention provides an important theoretical basis for the CHMP2B protein targeted inhibitor to treat ischemic heart disease, and provides a new drug solution for the prevention and treatment of ischemic heart disease in the prior art. Meanwhile, a new pharmaceutical application is explored for the known medicine metformin or the medicinal salt thereof, and the treatment range of the medicine is widened.