115results about How to "Solve the degradability" patented technology

A method for preparing modified maize straw hydrothermal charcoal by adopting KOH comprises the following steps: smashing the maize straw into powder; taking proper amount of maize straw powder, mixing with a distilled water,and conducting hydrothermal reaction in a reaction kettle so as to prepare the maize straw hydrothermal charcoal; mixing the obtained hydrothermal charcoal and a KOH solution, stirring for a period of time, and then conducting filtering, water washing and stoving so as to obtain the modified maize straw hydrothermal charcoal. The method is simple, and facilitates industrialized production; comparing the effect of the prepared modified hydrothermal charcoal with that of the conventional charcoal or a conventional similar charcoal adsorbent, the adsorptivity on heavy metal is greatly improved, and the stability is considerable.

The invention relates to a composite artificial ligament and a preparation method thereof. The composite artificial ligament has a rodlike structure formed by reeling of a woven net. The woven net has a net structure formed by weaving of threads. The threads in the rodlike structure tangle with each other to loop together so as to form a mesh interleaving structure. The threads are formed by winding of a variety of filament bundles with different degradation properties, and the variety of filament bundles with different degradation properties are respectively formed by spinning or beam spinning of components with different degradation properties, so that the obtained composite artificial ligament has gradient degradation performance. The composite artificial ligament provided by the invention has good mechanical properties, and can promote the attachment of surrounding tissue and the repair and normal growth of ligament tissue. At the same time, part of components in the body can be gradually biodegradable, and significant decline of the ligament's mechanical properties cannot be caused during degradation.

The invention discloses a method for preparing ultra-low molecular weight hyaluronic acid oligosaccharides and a salt thereof through combination of solid-liquid biphasic enzymolysis and ultrafiltration. The method comprises the following steps: degrading hyaluronic acid and a salt thereof by utilizing hyaluronidase produced by bacilli; preparing high-concentration hyaluronic acid enzymatic hydrolysate by adopting the method of combining a solid-liquid biphasic enzymolysis system and an ultrafiltration system, and then performing inactivating, activated carbon adsorption and impurity removal,filtering and spray-drying to obtain the ultra-low molecular weight hyaluronic acid oligosaccharides and the salt thereof with the molecular weight of less than or equal to 3 kDa. The product preparedby the method is high in stability, ultra-low in molecular weight, good in inflammation resistance and percutaneous absorptivity, high in purity, strong in oxidation resistance, does not have cytotoxicity, has the advantages of repairing skin cell damage and the like, and can be widely applied to the fields of cosmetics, food and medicines. According to the method, the process flow is easy to operate; conditions are mild; various alcohols are not used; the energy consumption is relatively low; the method does not have damage to a product structure, does not have environmental pollution, and is suitable for large-scale industrial production.

The invention relates to a preparation method of flurbiprofen axetil. The method comprises the following steps of: preparing 4-bromine-2-fluoroanili from fluoroaniline under the action of 1,3- dibromo-5,5-dimethyl hydantoin; condensing 4-bromine-2-fluoroanili with benzene under the action of a catalyst and sodium nitrite to synthesize 4-bromine-2-fluorobiphenyl; carrying out grignard reaction and acidity reaction on the 4-bromine-2-fluorobiphenyl and 2-bromine sodium propionate under the action of a catalyst to generate 2-(2- fluorine-4-biphenylyl) propionic acid; condensing the 2-(2- fluorine-4-biphenylyl) propionic acid with 1-chloroacetic ethyl acetate to generate a target compound flurbiprofen axetil; and carrying out molecular distillation on the flurbiprofen axetil crude product to obtain a flurbiprofen axetil final product.

The invention discloses a processing method for cephalosporin dreg. The processing method comprises the following process steps of: (A) thermal alkaline hydrolysis and separation treatment: uniformly mixing cephalosporin dreg, water and alkali, carrying out constant-temperature alkaline hydrolysis reaction, and carrying out solid-liquid separation at a certain temperature after the constant-temperature alkaline hydrolysis reaction, so as to obtain sediments to be standby; and (B) anaerobic digestion treatment: inoculating anaerobic activated sludge into an anaerobic fermentation tank, mixing the sediments obtained in the step (A) with excess sludge produced by utilizing wastewater biological treatment, injecting the mixture into the fermentation tank, carrying out constant-temperature stirring, and carrying out biogas residue discharging and feeding during fermentation. According to the processing method for the cephalosporin dreg, drug residues in the cephalosporin dreg can be completely removed, the problem that the anaerobic fermentation of single cephalosporin dreg cannot be effectively sustained is solved, and the reduction and innocent treatment to the cephalosporin dreg are realized; and biogas residues produced during the processing process can be used for preparing raw materials of organic fertilizers, the produced sewage gas can be used as clean fuels, and safe and effective disposition and resource utilization to the cephalosporin dreg are realized.

A method for preparing modified wheat straw hydrothermal charcoal by adopting KOH comprises the following steps: smashing the wheat straw into powder; taking proper amount of wheat straw powder, mixing with a distilled water, and conducting hydrothermal reaction in a reaction kettle so as to prepare the wheat straw hydrothermal charcoal; mixing the obtained hydrothermal charcoal and a KOH solution, stirring for a period of time, and then conducting filtering, water washing and stoving so as to obtain the modified wheat straw hydrothermal charcoal. The method is simple, and facilitates industrialized production; comparing the effect of the prepared modified hydrothermal charcoal with that of the conventional charcoal or a conventional similar charcoal adsorbent, the adsorptivity on heavy metal is greatly improved, and the stability is considerable.

The present invention discloses a surface treatment method of a dental implant, wherein a titanium or titanium alloy artificial implant is used. Through partial treatments which comprise sand spraying, acid pickling and coating hydroxyl calcium phosphate with biocompatibility, a specific porous structure is generated on the surface of the artificial dental implant, and the artificial dental implant is also provided with a partial porous hydroxyl calcium phosphate coating. Therefore osteoblast-like cell and bone integration speed can be increased, and furthermore the treatment period in artificial tooth implantation is reduced.

The artificial leather effluent treating process has different treating steps for different kinds of effluent with different COD and DMF concentrations. Effluent with high COD and DMF concentration is first treated in a DMF recovering system to recover DMF, then anaerobic treated and blown to eliminate generated ammonia nitrogen, and finally mixed with other low COD concentration effluent and further treated anaerobic / aerobic + coagulating precipitation process to reach the draining standard. The process has high treating effect, especially on high DMF content effluent.

The invention provides a paclitaxel lipid compound and a micellar compound used in the injection of the paclitaxel lipid compound. The paclitaxel liposome compound is composed of paclitaxel with a therapeutic dose, phospholipid, cholesterol sulfate or / and similar cholesterol derivative, additive and injection water. By means of the lipidization of the paclitaxel, the problem about organic menstruum of an injection and the problem of hypersusceptibility of a surface active agent are solved. A paclitaxel lipid compound injection provided by the invention has the advantages of small side effect, low blood vessel simulation, high drug-loading rate, narrow particle size distribution, capability of filtering and degerming, good pharmaceutical stability, etc.

A method for preparing modified wood chip hydrothermal charcoal by adopting KOH comprises the following steps: smashing wood chips into powder; taking proper amount of wood chip powder, mixing with distilled water, and conducting hydrothermal reaction in a reaction kettle so as to prepare the hydrothermal charcoal; mixing the obtained hydrothermal charcoal and a KOH solution, stirring for a period of time, and then conducting filtering, water washing and stoving so as to obtain the modified wood chip hydrothermal charcoal. The method is simple, and facilitates industrialized production; comparing the effect of the prepared modified hydrothermal charcoal with that of the conventional charcoal or a conventional similar charcoal adsorbent, the adsorptivity on heavy metal is greatly improved, and the stability is considerable.

The invention relates to a multifunctional water treatment agent used for treating refractory wastewater. The multifunctional water treatment agent is prepared through the following steps of: (1) modifying through bentonite, namely weighing bentonite, pouring the bentonite into an organic modifier solution with mass percent of 3-5%, stirring for 1-3 hours at room temperature, centrifuging, washing, drying and grinding the bentonite to powder so as to obtain modified bentonite; and (2) loading through potassium ferrate: pouring the modified bentonite prepared by step (1) into a potassium ferrate aqueous solution with the pH of 7-9 to be loaded, and air-drying the solution after saturating to obtain the multifunctional water treatment agent. The multifunctional water treatment agent provided by the invention integrates multiple functions, such as oxidation, adsorption, flocculation, sterilization, and the like, thereby greatly reducing the COD concentration and biotoxicity in the wastewater, improving the biodegradability of the wastewater, reducing the treatment cost and improving the emission standard-reaching rate of the refractory wastewater; and the multifunctional water treatment agent has the characteristics of being good in refractory wastewater treatment effect, free of toxic and harmful substance, low in treatment cost, environmentally-friendly, and the like, thereby being suitable for large scale industrial production.

The invention discloses a multi-metal oxygen-group catalyst for unsymmetrical dimethylhydrazine degradation and a preparation method and application thereof. The catalyst disclosed by the invention is shown as a general formula MO-MnOx-Y, wherein M represents at least two metals in transition metals and / or rare earth metals, Y represents a natural porous carrier, a weight ratio of MO to Y is (0.5-5) to 100, a weight ratio of MnOx to Y is (2-4) to 100, and x is 1-2. The catalyst has the advantages of improving the surface dispersity, activity and stability of active ingredients, being capable of catalyzing hydrogen peroxide to decompose to generate hydroxyl radicals OH and to further break chemical bonds of C-N and N-N of unsymmetrical dimethylhydrazine, being safe and efficient, and causing small secondary pollution. The catalyst provided by the invention is prepared by a precipitation oxidation method. The catalyst provided by the invention is applied to catalytic degradation of high-concentration unsymmetrical dimethylhydrazine waste water, equipment used in a degradation process is simple in structure, ingenious in design and low in operation cost and the safety in a degradation process is high.

The invention provides the preparation of a light-weight asphalt mixture with a photocatalytic degradation function by loading nano titanium dioxide (TiO2) on a light-weight aggregate through a porous performance, and belongs to the technical field of road surface materials, aiming at solving the problems of the TiO2 loaded on an asphalt road surface that the dispersion effect is poor, the doping amount is low, the photocatalytic efficiency is low, the degradation effect is poor and pavement performances are influenced. A preparation method comprises the following steps: taking butyl titanate as a precursor and preparing TiO2 sol with a sol-gel method; impregnating the light-weight aggregate into the sol; enabling the TiO2 to enter a light-weight aggregate gap by adopting a vacuum adsorption method; drying and calcining to prepare the light-weight aggregate loaded with the nano TiO2; then replacing one part of a common aggregate by adopting the loaded type light-weight aggregate, and designing a matching ratio of the asphalt mixture to respectively determine gradation and an optimal asphalt-aggregate ratio of each mixture; testing each pavement performance of the asphalt mixture; testing the effect of the asphalt mixture on an automobile tail gas degradation experiment and combining the experimental result of each pavement performance to determine the optimal doping amount of the light-weight aggregate, and preparing the asphalt mixture to pave an environment-friendly asphalt road surface.

The invention relates to a method for degrading landscaping garbage to produce an organic fertilizer by utilizing high-efficiency mixed bacteria, which comprises the steps: (1) organic matters of the landscaping garbage are sterilized after being crushed; (2) nutrition substrates, lignin and cellulose degradation bacteria are added to the solid phase; (3) the mixture is irradiated for 20 minutes every other 8 hours by adopting low-frequency ultrasonic wave until the fourth to seventh day of the fermentation cultivation after the fermentation cultivation for 24 to 26h; and (4) the sterilization processing is carried out to obtain the finished product organic fertilizer after the thoroughly decomposition for 1 to 3 days. The method has the advantages of simple required equipment, simple andconvenient process, and safety disposal realization of the landscaping garbage. Meanwhile, the method produces the organic fertilizer capable of promoting the growth of crops, solves the difficultiesof difficult degradation and difficult recycle of the current landscaping garbage, and has extremely profound social significance and economic value.

The invention discloses a microporous degradable collagen-chitosan nerve conduit which comprises a cylindrical nerve conduit body. The cross section of the nerve conduit is ring-shaped. A preparation method of the nerve conduit is further disclosed. The method includes 1) weighing I-type collagen and chitosan; 2) placing the I-type collagen and the chitosan into acetum respectively and mixing two types of turbid liquid to prepare I-type collagen-chitosan gel-like turbid liquid; 3) pouring the I-type collagen-chitosan gel-like turbid liquid into a nerve conduit forming mould and conducting injection molding and cooling spraying solidification; 4) preparing the microporous degradable collagen-chitosan nerve conduit; and 5) conducting crosslinking and disinfection treatment on the nerve conduit. By means of the microporous degradable collagen-chitosan nerve conduit and the preparation method, the problem that the existing nerve conduit is not favorable for transportation of nutrient substances, oxygen and metabolite, is non-degradable or has poor biological degradability due to the fact that the wall of the nerve conduit is sealed is solved.

The invention discloses an urban sewage treatment composite material as well as a preparation method and application thereof. The urban sewage treatment composite material is prepared from rice hull, diatomite, polyaluminum chloride and ferment bacteria according to certain weight percentages. The preparation method comprises the following steps: A, uniformly mixing the rice hull and ferment bacteria, and naturally stacking and fermenting for two weeks to obtain a mixed raw material, wherein the fermentation temperature is 65-70 DEG C; B, when in use, uniformly mixing according to a condition that the weight ratio of the mixed raw material to water to brown sugar is equal to 1:0.3:0.01, fermenting for 110-130 minutes for later use, and ensuring that the water temperature of treated sewage is less than 10 DEG C; and C, uniformly mixing the mixed raw material which is fermented for later use with diatomite and polyaluminum chloride according to weight percentages to obtain the composite material. The invention also relates to an application of the composite material in urban sewage treatment. By virtue of the synergistic effects of adsorption, flocculation and biological transformation, the problems that an existing urban sewage treatment system cannot be used for effectively removing some hardly-degradable organic matters and soluble pollutants such as phosphorus and nitrogen can be solved, and thus a condition that effluent can reach the first grade A standard which is superior to the national urban and town sewage discharge standard can be ensured.

The invention discloses a preparation method for collagen-based biomedical materials, which is characterized in that: fresh animal skin and / or tendon and / or sheet-beam are adopt to make collagen fiber dispersion liquid (gel) or freeze-dry the collagen fiber materials via the enzymatic method, then are immersedly treated for 20 to 60 minutes through ethanol alcohol solution with concentration of 35 to 65 percent with 8 to 12g / L 2- sulfonic acid under the temperature of 15 to 40 DEG C, and then are immersedly treated for 4 to 24 hours through solution with 1.0 to 5.5g / L N-hydroxy amber imide and 0.8 to 4.0g / L carbodiimide hydrochloride under the temperature of 15 to 40 DEG C; the collagen raw materials are cleaned and immersed for two times through ethanol with concentration of 80 to 95 percent, each time for 10 to 30 minutes, then are immersed and cleaned for one time through Na2HPO4 solution with concentration of 1.5 to 2.0 percent and NaCl solution with concentration of 5.5 to 6.5 percent respectively, the time is 30 to 60 minutes; then are immersed and cleaned for 2 times through distilled water immersion, each time for 10 to 30 minutes, the materials after being cleaned are freeze-dried, and the collagen-based biomedical materials are obtained.

The invention relates to an easily-degradable alkali-free viscosity reducer for thick oil and a preparation method thereof. The viscosity reducer consists of propylene glycol block polyether, fatty alcohol ammonium sulfate, fatty alcohol, a penetrating agent and water; and in terms of the total mass of the viscosity reducer, the sum of mass percent of propylene glycol block polyether, fatty alcohol ammonium sulfate, fatty alcohol and the penetrating agent is 45 to 60 wt%. The invention also provides the preparation method for the viscosity reducer, and the method comprises the following steps: successively adding propylene glycol block polyether, fatty alcohol ammonium sulfate, fatty alcohol and the penetrating agent into water at a temperature of 50 to 80 DEG C under normal pressure, wherein a mass ratio of the four above-mentioned raw materials to water is 15: 15: 5: 10: 55 to 25: 25: 4: 6: 40; and carrying out continuous stirring for 60 to 90 min at a rotating speed of 60 to 120 r / min while adding the four raw materials so as to obtain the easily-degradable alkali-free viscosity reducer for thick oil. Surfactant used in the viscosity reducer is nonionic and anionic surfactant, the structure of benzene rings is not included in a molecule, and therefore, the characteristics of easy degradability, no toxicity, greenness and environment friendliness are obtained.

The invention relates to a straw-degrading composite microbial inoculum which is prepared by mixing a microbial inoculum No.I and a microbial inoculum No.II, wherein the microbial inoculum No.I comprises phanerochete chrysosporium, cacillus and streptomycete; and the microbial inoculum No.II comprises trichoderma, penicillium, aspergillus and actinomycete. The application method of the high-efficiency straw-degrading composite microbial inoculum in pretreatment of ethanol production comprises the following steps: soaking crushed straws in ammonia water to carry out cleaning treatment; adding a nutrient solution to prepare a fermentation substrate; spraying the high-efficiency straw-degrading composite microbial inoculum, and carrying out fermentation treatment for two days; and filtering,and washing with water to neutral, thus obtaining the pretreatment product for ethanol production. The invention has the following advantages: the treatment of soaking straws in ammonia water is beneficial to removing lignin, increasing the enzyme contact area of celluloses and hemicelluloses and improving the pretreatment efficiency; and by combining the microbial inoculum and the fermentation process to degrade straws, different microbes can secrete complementary enzymes in the degradation process, so that the substrate can be thoroughly degraded, thereby improving the biomass resource utilization rate. Besides, the invention is simple in process and convenient to implement, and can not do harm to the environment.

The invention discloses a special halogen-free flame-retardant master batch for polypropylene and a preparation method for the halogen-free flame retardant master batch. Components of the master batch comprise, in mass percent, 75-90% of phosphorus-nitrogen halogen-free flame retardant, 8-22% of carrier and 0.1-5% of modified ethylene bis-fatty acid amide. By the aid of the master batch, quality instability of materials due to non-uniform mixing of powder and granules is effectively avoided, easiness in generation of chippings or powder during granule cutting is avoided, production efficiency is improved, and production cost is lowered. Adopting a continuous banburying-extrusion production process leads production efficiency to be high. The master batch effectively solves the problems of easiness in moisture absorption, degradation and foaming of halogen-free flame retardant, so that storage time of the phosphorus-nitrogen halogen-free flame retardant is prolonged, and processability of the phosphorus-nitrogen halogen-free flame retardant is improved. Besides, the special halogen-free flame-retardant master batch for the polypropylene has the advantages of easiness in dispersion, high flame-retardant efficiency and low production cost, and has less influence on physical and mechanical properties, heat resistance, processability and surface color of composite materials than a special traditional halogen-free flame-retardant master batch for polypropylene.

The invention relates to a Beta-TCP porous material and a preparation method thereof. Natural plant fiber or polyurethane sponge is used as a pore creating material. A three-dimensional-net-shaped skeleton green body is prepared by immersing the pore creating material into a slurry made from Beta-TCP which is doped with a trace element Zn. The Beta-TCP porous material is obtained by drying and sintering the three-dimensional-net-shaped skeleton green body. The Beta-TCP material which is doped with the Zn better satisfies the need for material degradation and osseous tissue creeping growth. In the invention, the addition of the trace element Zn into the Beta-TCP porous material improves the ALP activity and promotes the degrading of the Beta-TCP porous material in the case of low porosity, thereby greatly improving the pressive strength and the degrading capability of the Beta-TCP porous material and solving the problem that the mechanical property and the biodegradation property of a Beta-TCP porous biological ceramics embedded material are not matched. The Beta-TCP porous material has good degradation property and good mechanical property, is expectable to improve the defects of bone defect repairing and rebuilding materials, and can be widely and clinically used.

The invention relates to the microorganism agent for degrading hogwash garbage and the preparation craft, which is formed by mixing seven active germ powders in certain matching. The seven germs are as following: Bacillus subtilis E4, H11, Bacillus licheniformis A2, I1, Bacillus cereus F3, F6 and Bacillus stearothermophilus H13. The invention resolves the problems of bad degrading result and complicated preparation of the hametz due to overfull germ sorts existing in the import microorganism agent degrading the oil component in the garbage, and adopts bacillocin as the strain to obtain the germ powder through the crafts of seed culturing, fermentation culturing and sponging drying. The invention has the advantages of small sorts of germ, simple fermenting process, high concentration of germ in the germ powder and good degrading result, and can achieve minimization treatment, innocent treatment and treatment of being turned into resources, therefore can not only improve the environment sanitary of the city, but also lay a solid foundation for large-scale commercial process. The invention also has an advantage of good economic benefit.

The invention relates to instant waxberry and mulberry solid drink and a preparation method thereof. The instant waxberry and mulberry solid drink is characterized by comprising the following raw materials in percentage by mass: 10-15% of maltodextrin, 5-7% of sucrose, 0.3-0.4% of aspartame, 1.5-2.5% of citric acid and 0.3-0.4% of isoascorbic acid. The preparation method comprises the following steps: adding the raw materials to raw waxberry and mulberry juice; milling by a colloid mill; homogenizing under high pressure; and spray-drying. The instant waxberry and mulberry solid drink obtainedby the preparation method has the advantages of stable sensory properties such as taste, color, fragrance and the like, long product shelf life, richness in amino acid and mineral substances, good instant solubility and good water-mixing property, and is convenient for package and transportation, thus being worthy of being popularized; and the preparation method has the advantages of simple and easy process and low cost, and can help solve the problems of the waxberry juice drink such as easy degradation and discoloration of anthocyanin and subsequent sedimentation.

The invention discloses a method for harmless treatment of waste incineration fly ash through a hydrothermal technology. The method comprises the following steps of (1) adding a hydroxyapatite precursor liquid into fly ash, and then performing first-step hydrothermal reaction under normal pressure at 40 to 50 DEG C to stabilize heavy metals in the fly ash; and (2) adding magnetic hydroxyapatite powder and hydrogen peroxide into a mixture obtained by the reaction of the step (1), and then performing second-step microwave hydrothermal reaction under a high pressure at 20 to 150 DEG C to furtherstabilize the heavy metals in the fly ash and degrade polyaromatic hydrocarbons. According to the method, stabilization of the heavy metals and degradation and detoxification of the polyaromatic hydrocarbons in the waste incineration fly ash can be realized efficiently and synchronously; the leaching toxicity of the heavy metals is lower than identification standards for hazardous wastes and can meet domestic waste landfill pollution control standards; the heavy metals are actually stabilized in the fly ash rather than being transferred to a hydrothermal waste liquid on a large scale; the toxic equivalent degradation rate of sixteen polyaromatic hydrocarbons is up to 95.06 percent; and secondary pollution is prevented.

The invention discloses a method for manufacturing bamboo / wood-based lining plastic doors and windows. The method comprises a step of: filling a lining material in a cavity of a polyvinyl chloride (PVC) section; and a method for preparing the lining material comprises the following steps of: preparing materials, wherein the lining material consists of the following components in percentage by mass: 45 to 55 percent of regenerated resin, 40 to 50 percent of plant fiber powder, 1 to 5 percent of plant fiber powder surface treating agent, 1 to 5 percent of lubricant and 1 to 5 percent of flexibilizer; uniformly stirring the components, and performing extrusion molding through a mold to obtain a blank material; and finishing the surface of the blank material, so that the finished blank material is fitted with the cavity of the PVC section. The bamboo / wood-based lining plastic doors and windows manufactured by the method have the characteristics of low cost, environment friendliness, high heat preservation and the like.

The invention relates to a method for efficiently separating zhongshengmycin from fermentation liquor. The core process method comprises the following steps of: filtering the fermentation liquor by a ceramic membrane, and performing cation resin exchange adsorption separation on low-unit ceramic clear liquid of the ceramic clear liquid, wherein the elution yield is 90-95%; independently concentrating and spray-drying the analytical liquid, or mixing with high-unit concentrated mother liquor of the ceramic clear liquid according to a ratio of 1: 1-1: 3, concentrating and spray-drying, wherein the content of the obtained zhongshengmycin raw drug is 25-65%, the total yield is improved by 16-20% compared with the raw drug, and the color and purity of the raw drug are greatly improved compared with 12-24% granular products in the market. According to the method disclosed by the invention, the problems of low separation efficiency of the low-unit mother liquor of the zhongshengmycin and high degradation rate in the production process are solved, the raw drugs with different mass ratios are obtained, the production yield is improved, and the production cost is effectively reduced.

The invention discloses a composition of plant direct gene transformation, transforming method and appliance, which is characterized by the following: making the component include goal gene and free nucleic acid component of adjusted and controlled element, transforming buffer liquid and transforming assistance component; co-culturing; soaking; surface-daubing; injecting; dripping; spraying; transforming with dip flower method or through genetic gun bombardment, supersonic wave and electric shock method. This component can be used to receptor plant cell direct transformation of fertilized ovum, suspended cell, protoplast, single-layer cell and diachyma cell and can be used to seed, receptor plant pollen, pistil, flower pillar, pollen pipe and ovary, which possesses impotent meaning for plant genetic seeding, variety improvement and gene functional analysis.

The invention belongs to the technical field of biodegradable polymer materials, and especially relates to a special strengthening, toughening and transmittance increasing master batch for an ultrathin fully-biodegradable mulch film. The master batch is mainly prepared from poly(butylene adipate / terephthalate), polylactic acid, a strengthening, toughening and reflection reducing agent and a stability assistant. A preparation method of the master batch is simple and is easy to operate, and the obtained special master batch can be completely degraded and has a good dispersibility. A proper amount of the master batch is added in order to blow the ultrathin biodegradable mulch film with the thickness being 6 [mu]m or less, the film can be easily opened during the blow producing of the ultrathin mulch film, the processing stability and the processing efficiency are improved, and the produced mulch film has enhanced mechanical properties, improved light transmittance, reduced haze and remarkably improved weather resistance. The master batch combines strengthening, toughening, transmittance increasing and lubricating functions, is simple to use, improves the processing performances of the ultrathin fully-biodegradable mulch film, and reduces the use cost of the fully-biodegradable mulch film.

The invention relates to a deep treatment system of membraneless industrial organic wastewater and is suitable for secondary bio-chemical effluent with the water quality COD being less than 300mg / L and the total salt being less than 1%. ''Membraneless'' indicates that physical separation membrane including an MBR system is not necessary in the technology. The invention comprises three treatment units: a wastewater property improvement unit, an ozone catalytic oxidation unit and a biological aerated filter unit. A wastewater modifier is added into the wastewater property improvement pool, so as to reduce the secondary bio-chemical effluent suspension and simultaneously provide a nano-scale catalyst for ozone oxidation. The ozone catalytic oxidation system can be used to reduce COD and chroma, raise the biodegradability of wastewater and decrease the service power of ozone by the utilization of the nano-scale catalyst. Ozone catalytic oxidation effluent enters into the biological aerated filter processing system and pollutants are further reduced by the utilization of the ceramsite surface biomembrane in the biological aerated filter. The treatment technology provided by the invention is efficient, is simple to operate, has strong adaptability and is a potential deep treatment technology of industrial organic wastewater.

The invention discloses a resource and energy utilization method of garbage leachate. The resource and energy utilization method of the garbage leachate comprises the following steps of (1) placing the leachate in a reaction tank with a stirrer, adjusting a pH value to be 6-7, conducting stirring, adding an oxidizing agent, carrying out an oxidation reaction, then adding a heavy metal ion sediment curing agent, carrying out a curing reaction, and filtering out sediment to obtain a mixture of an organic acid and an organic acid salt; (2) adding a functional catalyst element compound into the mixture obtained in the step (1), conducting stirring, and carrying out a reaction to obtain an organic acid salt catalytic oxidation promoter; and (3) using the organic acid salt catalytic oxidation promoter obtained in the step (2) for clean combustion of domestic garbage or for clean combustion of dewatered sludge of a garbage incineration power plant or for clean combustion of domestic garbage, mixed with sludge, of the garbage incineration power plant or for clean combustion of fire coal. The method is simple and easy to implement, the problems that leachate and concentrate of the leachate are hard to degrade, and the like can be effectively solved, and resource and energy utilization of the leachate is achieved.