54results about How to "Reasonable reuse" patented technology

The invention discloses a method to prepare leaven of fertilizer and application, which is characterized by the following: allocating raw material with mass ratio at 10-80 wt industrial residue of ferment, 5-30 wt straw, 5-30 wt cake meal, 10-30 wt bran or rice bran, 1.5-2 wt aquacare, 0.5-1 wt NaCl and or amylaceum, and 1-30 wt brown ball Azotobacter (Azotobacter chroococcum), 1-30 wt bacillus megaterium (Bacillus megaterium), 1-30 wt bacillus licheniformis (Bacillus licheniformis), 1-30 wt plant lactobacillus (Lactobacillus plantarum) and 1-30 wt 1-5 strain of saccharomycopsis fibuligera (Saccharomycopsis fibuligera); producing the product.

The invention discloses an industrial method for selectively recycling copper and nickel from copper-nickel mud, belonging to the field of recycling non-ferrous metal resources. The industrial method comprises the following steps of: acid-leaching the copper-nickel mud; filtering leachate; punching the leachate to a sealed tubular slot from a circulating slot under the action of a circulating pump, rotating the solution in the slot at a high speed, and carrying out rotational flow electrolysis to remove the copper; returning electrodeposited solution to the leaching process for continuously carrying out leaching; and gathering the nickel in the copper-nickel mud for preparing nickel sulfate. According to the industrial method provided by the invention, an high-speed rotation electrolytic technology for a solution in an electrolytic cell is combined with other processes to recycle the metal in the solution for being continuously used for other industries, so that the waste material is changed into things of value for realizing recycling the resources; the current density and the current efficiency are high, the reagent consumption is low, the production cost is reduced, and performances of the enterprise are improved. Meanwhile, the solution is circulated in a closed-loop manner, so that no harmful gases are exhausted, and the existing circular economy and environmental protection theories are satisfied.

The invention discloses a method for treating anode mud by swirl electrolysis, belonging to the technical field of nonferrous metals hydrometallurgy and resource regeneration recycling. In the method, the anode mud is used as the raw material, after being leached with nitric acid, the anode mud is filtered by a precise filtering device, then, nitric acid solution containing silver and copper is obtained; the nitric acid solution containing silver and copper is treated by desilverization through two sections of swirl electrolysis, then, silver powder is obtained, after the silver powder is collected, the silver powder is washed with pure water and dried, the desilverized barren liquor sequentially enters into a swirl electrolysis system so as to be treated by electrolysis for copper removal, thus, cathode copper is obtained. The treatment method provided by the invention efficiently recycles metals, turns waste into wealth, and realizes recycling of resources; by the swirl electrolysis technology, metals can be selectively treated by electrolytic deposition, and the silver and the copper can be purified better; the current density and the current efficiency both are higher, reagent consumption is low, the production cost is reduced, and the benefits of enterprises are improved; meanwhile, the solution is circulated in closed loop, emission of harmful gas is avoided, so that the method meets the current concept of circular economy and environment protection.

The invention relates to the field of biological feed preparation, in particular to a feed capable of promoting the growth of hermetia illucens larvae and a preparation method. The feed is prepared from organic garbage, animal waste, waste argil, blood powder and fungus additives; firstly, the organic garbage, the animal waste, the waste argil and the blood powder are mixed by weight and uniformlystirred to prepare a first mixture; secondly, the first mixture is cooked at high temperature and mixed with the fungus additives by weight after being sterilized to prepare a second mixture; thirdly, the second mixture is placed in an aerobic environment for aerobic fermentation; finally, a fermented product is drained and dried to obtain the feed. The problems are solved that an existing hermetia illucens feed is sightly high in production cost based on conventional food, the whole feed is monotonous in nutrient completely based on flour, bran and corn flour, and the effect of prolonging the growth cycle of the hermetia illucens larvae is limited.

The invention provides a method for extracting and purifying procyanidine from waste grape seeds and discloses a process route with simpler and reasonable effects and low cost. The method comprises the following steps: carrying out water-bath reflux extraction on grape seed powder by using a solvent containing 50% alcohol and 4% citric acid at a ratio of (3:1)-(5:1) at a material-liquid ratio of (1:6)-(1:9) (m / v, the mass-volume rate), cooling, filtering, then carrying out rotary evaporation, and recovering alcohol; using the alcohol for alcohol precipitation, filtering alcohol-precipitation liquid, then concentrating, recovering alcohol, adding distilled water and uniformly mixing; extracting with normal butanol, combining extraction liquid, and cleaning the extraction liquid with saturated salt water; and carrying out rotary concentration and drying on the extraction liquid, and recovering normal butanol, thereby obtaining purpurin powder. The method provided by the invention has the following advantages that waste grape seeds in the wine brewing process are adopted as raw materials, so that not only are the wastes reasonably reutilized, but also the cost is low and the implementation benefit is obvious; alcohol is utilized for extraction, and normal butanol is utilized for extraction treatment, so that the production safety is good; alcohol and normal butanol are recovered, and are recycled, so that the cost is reduced; the product is high in purity and good in yield; and the process is simple and the industrialization is easy.

The invention provides a flue gas condensation and electrostatic treatment device and treatment technology, and belongs to the field of purification treatment of a flue gas. The flue gas is treated by the flue gas condensation and electrostatic treatment device. The device comprises liquid channel layers arranged in multiple layers, so that the flue gas and a cooling medium circulate in different liquid channels respectively and finish heat exchange; the surface of the bottom part of the liquid channel into which the flue gas is introduced is coated with a conductive material; the conductive material is connected with a positive electrode of a power supply system to form an anode plate, so that a strong oxidation environment is formed in the liquid channel after electrification; and the anode plate is matched with a negative electrode of the power supply system to form an adsorption electric field in the liquid channel. According to the flue gas condensation and electrostatic treatment device and treatment technology, pollutants of sulfur oxide, nitric oxide, PM2.5 and the like in the flue gas can be effectively removed; a lot of water is also recycled; and the problem that the environment is polluted since the water is combined with the pollutants to form acidy white smoke after being discharged into atmosphere is solved.

The invention discloses a domestic waste treatment technology. Firstly, domestic waste is filtered, dried, sorted and torn and then subjected to comprehensive sorting, and domestic waste with the length being 40 mm or below, 40-80 mm and 80 mm or above is sorted out. In the waste with the length being 40 mm or below, compostable organic matter enters a reconciliation pond, shell objects enter a gasification and power generation workshop, and waste batteries enter a recycling factory to be recycled. In the domestic waste with the length being 40-80 mm, organic matter enters the reconciliation pond, glass, bricks and residue soil are used for producing bricks for buildings, and shoes serve as raw materials to enter the gasification and power generation workshop. In the waste with the length being 80 mm or above, plastic bags are used for oil refining in the oil refining technology, paper can be sold after being dried, flammable solid fuel and fabric enter the gasification and power generation workshop, and ABB / ABS / PVC materials serve as raw materials and are used for oil refining. According to the technology, secondary pollution is little, waste of land resources is reduced, and the resource recycling rate is greatly increased.

The invention discloses an automatic lossless dismounting recovery method and an automatic lossless dismounting recovery device of a discarded printed circuit board. The method is characterized by comprising the following steps of preparing low-grade overheat vapor by using industrial waste heat through a waste heat boiler, and heating and pulse blowing the discarded printed circuit board at high temperature so as to realize the automatic lossless dismounting of electronic elements and devices on the discarded printed circuit board; guiding the overheat vapor after the working into a heat exchanger, reheating the overheat vapor after the working through the heat exchanger by utilizing the industrial waste heat as a heat source, and recycling the overheat vapor. By adopting the automatic lossless dismounting recovery method and the device, not only can the energy be greatly saved, but also the heat pollution caused by the industrial waste heat can be effectively reduced, the secondary pollution to the environment caused by dismounting the discarded printed circuit board at the high temperature can be avoided, the energy can be reasonably reused, and not only can the national policy of energy conservation and emission reduction be satisfied, but also a positive effect on protecting the environment can be realized.

The invention discloses an environmental-friendly and multipurpose cleaning device for a building site. The environmental-friendly and multipurpose cleaning device comprises a base, wherein the bottompart of the base is fixedly connected with two U-shaped plates which are in left-right symmetry; the front surfaces of the U-shaped plates are movably connected with plug pins penetrating through theU-shaped plates; the outer surfaces of the plug pins are fixedly connected with rollers located on the inner surfaces of the U-shaped plates; the inner surfaces of the U-shaped plates are fixedly connected with wheel brakes located right above the rollers. According to the environmental-friendly and multipurpose cleaning device disclosed by the invention, by arranging a water pump, a water supplypipeline, a water outlet pipeline and water spray heads, the function of spraying cleaned water can be achieved, and an effect of utilizing a cleaned water resource can be achieved by using the cleaned water to spray dusty ground; through the way, a water resource of the building site is greatly saved, a reasonable reutilization effect of the water resource is achieved, and the effect of greatlyenabling a whole cleaning process to be more environmentally friendly can be achieved.

The invention provides a modified polypropylene recycled material and a preparation method of the modified polypropylene recycled material. 30 to 75 parts of polypropylene recycled materials, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted acrylic acid, 10 to 25 parts of alkali-free glass fibers, 0.2 to 1 part of an antioxidant, and 0.5 to 2 parts of 2,5-dimethyl-2,5-bis(tert butyl peroxy) hexane are mixed, and subjected to extrusion pelletization to manufacture the modified polypropylene recycled material. According to the invention, the polypropylene grafted acrylic acid is added in the polypropylene recycled materials to introduce strong polar reactive groups, so that the material has high polarity and reactivity, and the compatibility of the polypropylene and fibers are greatly improved; furthermore, 2,5-dimethyl-2,5-bis(tert butyl peroxy) hexane is combined to improve the strength, cohesion and dispersion properties of the material, therefore, the modified polypropylene recycled material has good dispersion and compatibility and excellent rigid-tough balance.

The invention discloses a high-yield planting method for purple sweet potatoes. The high-yield planting method comprises the following steps of 1 purple sweet potato vine treating; 2 planting field treating; 3 purple sweet potato vine cutting; 4 field managing; 5 harvesting. According to the high-yield planting method, purple sweet potato vines are fully utilized, one part of the purple sweet potato vines is used for cutting seedling preparation, the other part of the purple sweet potato vines is used as fertilizer components, a new way is supplied to reutilization of the purple sweet potato vines, and the environment is protected; the cost is lower, cultivated purple sweet potatoes are high in yield and good in quality, and the very good economic benefit and popularization value are achieved.

The invention provides a method for producing a cold-resistant plasticizer through industrial byproduct nylon acid, and belongs to the technical fields of comprehensive utilization of the nylon acid and preparation of plasticizers. According to the method, the industrial byproduct nylon acid is used for replacing the expensive long-chain fatty acid to be used as the raw material to react with novel alcohol, namely 2-propyl heptanol, for high-molecular plasticizer to realize the preparation, thus the byproduct can be reasonably recycled, the problem due to pollution of the wastes to the environment can be solved, and the cost can be greatly reduced. The method adopts the process of dealcoholizing firstly and water washing secondly, so that the production process can be simplified, the energy consumption can be saved, and the production period can be shortened. The method is remarkable in economic benefit and social benefit; and the cold-resistant plasticizer has the advantages of being high in compatibility with PVC (Polyvinyl Chloride) and excellent in plasticity and cold resistance, and meets the requirements of product processing and application.

The invention discloses a device and a method for on-line detection of high-voltage switches, which helps to monitor the performances of compression springs of the high-voltage switches under causative conditions in real time, avoids disastrous accidents induced by spring yielding, and is favorable for grading the causative compression springs during the overhaul of the high-voltage switches so asto achieve on-line control on overhaul operation. The method comprises the following steps: (1) designing the complete-energy causativity of the compression springs, and tension or stress values of damage tolerance; (2) using a force measurement or stress sensor to detect the tension or stress of the compression springs under the causative conditions in real time; (3) allowing a system to automatically alarm or isolate high-voltage power grids when the tension or stress values detected in real time is lower than the damage tolerance; and (4) using the detection device to grade the causative compression springs when the high-voltage switches are overhauled and installing the compression springs of the same grade on the high-voltage switches of one high-voltage power grid. The invention hasthe advantage of improving the operation quality of the high-voltage power grids.

Disclosed is a visualized remote control feeder. The feeder mainly comprises a hopper, a stirring mechanism, a discharging mechanism, a water adding system, a gate, a weighing system, cameras, a control system, a driving mechanism and a walking mechanism. The stirring mechanism is arranged in the middle of the hopper, discharging outlets are formed in the two sides of the lower portion of the hopper, the discharging mechanism is arranged at the lower portion of the hopper, the gate is arranged between the stirring mechanism and the discharging mechanism, the walking mechanism is arranged at the lower portion of the machine frame, the driving mechanism provides power for the stirring mechanism, the discharging mechanism and the walking mechanism, the cameras are arranged at the front and back ends of a machine frame, the weighing system is arranged on a machine frame stand column, the weighing system, the cameras and the control system are electrically connected, and the control system comprises a wireless signal transceiving module. By reasonably adopting the feeder hopper, the previous stirrer-conveyor links are omitted, and corollary equipment is omitted, so that the occupied place is saved; unattended remote control is achieved through the weighing system, the cameras and the control system.

The invention provides an alkali-free glass fiber modified polypropylene recycling material and a preparation method of the alkali-free glass fiber modified polypropylene recycling material. The alkali-free glass fiber modified polypropylene recycling material is prepared from the following components by mixing, extruding and granulating: 30 to 75 parts of a polypropylene recycling material, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted maleic anhydride, 10 to 25 parts of alkali-free glass fiber, 0.2 to 1 part of an antioxygen and 0.5 to 2 parts of 2,5-dimethyl-2,5-bi(tert-butylperoxy)hexane. According to the alkali-free glass fiber modified polypropylene recycling material, the polypropylene grafted maleic anhydride is added into the polypropylene recycling material to introduce a strong-polarity reactive group, so that the material has high polarity and reactivity, and the compatibility of the polypropylene and the fibers is extremely improved; meanwhile, the 2,5-dimethyl-2,5-bi(tert-butylperoxy)hexane is combined so that the strength, adhesive force and dispersion performance of the material are improved; good dispersity, compatibility and excellent rigid-tough balance are obtained.

The invention belongs to the technical field of modern agricultural production, particularly relates to a vegetable and fish co-culture device for modern agricultural production, and aims at solving the problems that the labor amount in the harvesting process is large due to the fact that crops need to be pulled out during harvesting and roots of the crops need to be cut off for harvesting, and the economic value is reduced due to the fact that vegetable root hair parts cannot be reasonably reused. According to the scheme, the vegetable and fish co-culture device comprises a planting pool, supporting frames are fixedly installed on the inner walls of the two ends of the planting pool, a plurality of planting plates arranged side by side are fixedly installed between the tops of the two supporting frames, a plurality of planting hole grooves are formed in the tops of the planting plates, and root fixing mechanisms are inserted into the planting hole grooves. According to the vegetable and fish co-culture device, fishes are put into the planting pool, the fishes take root hairs of the crops as supplementary food, and therefore the feed cost is reduced; and excrement generated by thefishes provides nutrients for the crops, so that the purpose of co-culture of the crops and the fishes is achieved, ecological and scientific vegetable and fish co-culture is realized, and the economic value is improved.

The invention relates to the technical field of solar water heaters, and discloses a water tank for a solar water heater, which comprises a water tank shell and at least a heating water tank, whereinthe water tank shell is sleeved outside each heating water tank, a horizontal table surface is formed on the upper end surface of the water tank shell, all the heating water tanks are communicated, and each heating water tank is provided with a cold water inlet and a hot water outlet. The horizontal table surface is formed on the upper end surface of the water tank shell of the water tank for thesolar water heater, an on table basin can be arranged on the horizontal table surface, a terminal water mouth is arranged above the on table basin, the terminal water mouth is communicated with the hot water outlet of the heating water tank, and the whole water tank for the solar water heater can be used as a washing table; the horizontal table surface on the upper end surface of the water tank shell can also be used as a table surface for placing other objects, so that the occupied space of the water tanks for the solar water heater can be reasonably utilized, and indoor space can be effectively saved. The invention also provides a solar water heater.

The invention discloses a method for preparing triethyl phosphate .The method comprises the following steps that phosphorus trichloride and absolute ethyl alcohol are adopted as raw materials, methylbenzene is adopted as a solvent, a synthetic reaction is carried out under the action of an acid absorbent, the product is subjected to filtering and vacuum distillation, and refined triethyl phosphate is obtained .Compared with the prior art, 90% or above of a byproduct hydrogen chloride can be removed under the micro-negative pressure condition, the product conversion rate is high, the quality is stable, the quantity of adopted acid absorbent can be reduced, cost can be reduced, recycled hydrogen chloride can be used for other fields, environmental pollution is reduced, and effective resources are reasonably reused; the method for preparing triethyl phosphate is simple, operate is convenient, productivity is high, and the obtained product is high in purity and yield.

The invention relates to a treatment method of a chromium-containing waste catalyst. The treatment method comprises the steps that oxygen-enriched calcination is conducted on the waste chromium-based fluorination catalyst, so that organic matter materials and carbon are decomposed and removed, a calcination product is cooled and then ground to be powder until the particle size of the powder is 100 mesh or above, excessive acid liquid is added according to the mass ratio of 1:(1-10), stirring is conducted, filtration is conducted while the liquid is hot, alkali liquid is added into the obtained filtrate and fully stirred to regulate the PH value of the filtrate, a catalyst carrier is taken as a carrier for soaking and adsorbing, separation is conducted after full mixing is conducted, the obtained insoluble substance is washed with deionized water multiple times and then subjected to drying and tabletting or extrusion moulding, and a target precursor is obtained; the target precursor is activated with anhydrous hydrogen fluoride, and a fluorination catalyst is obtained. According to the treatment method, the waste catalyst is treated and then used for preparing the original catalyst, the product hydrates chromium oxide at high purity, the waste materials are changed into things of value, the product can be directly sold, harmful substances are controlled in the whole process, pollution of chromium in the waste catalyst to the environment is reduced, and on the other hand, the catalyst using cost in production is reduced.

The invention discloses a vegetable seed direct sowing hole fertilizer and relates to the technical field of seed fertilizers. The vegetable seed direct sowing hole fertilizer is prepared by using the following raw materials in parts by weight: 35 to 45 parts of pine needle mulch, 20 to 25 parts of mushroom residue, 15 to 20 parts of furfural residue, 10 to 15 parts of corn steep liquor sprayed soybean residue, 10 to 15 parts of tea seed cake powder, 8 to 13 parts of sugar beet residue, 6 to 11 parts of worm cast, 6 to 11 parts of maize alcohol lees, 5 to 9 parts of fermented brewer grain, 4 to 7 parts of Eucommla ulmoides leaves, 4 to 7 parts of camphor tree leaves, 3 to 5 parts of volcanic ash, 3 to 5 parts of urea humate, 3 to 5 parts of pregelatinized starch, 2 to 3 parts of super fine magnesia, 2 to 3 parts of unprocessed rehmannia root, 2 to 3 parts of soda ash, 1 to 2 parts of turpentine oil, 1 to 2 parts of Chinese prickly ash residue, 1 to 2 parts of polyferric sulfate and 0.5 to 1 part of bone charcoal powder. The hole fertilizer disclosed by the invention can provide fertility for seed germination and seedling emergence, the fertilizer effect is long, the fertilization times are reduced, and the harmful ova and germs in soil around seeds can be effectively prevented from jeopardizing the seeds; simultaneously, pollution is not caused to the soil but the effects of loosening the soil and increasing the fertility of the soil can be obtained.

The invention relates to a plant fiber / waste FPR composite material and a preparation method thereof. The preparation method comprises the following steps: dispersing 50-80% of plant fibers and 5-20% of PVA fibers in water in percentages by weight and uniformly stirring, then adding 10-30% of waste FPR powder wetted by a wetting agent in percentages by weight, and uniformly stirring to obtain a fluid to be treated; and carrying out papermaking and molding on the fluid to be treated to obtain wet paper sheets, and squeezing and drying to obtain the plant fiber / waste FPR composite material. According to the preparation method disclosed by the invention, the waste FPR and the plant fibers serve as main materials, PVA fibers serve as adhesives, so that the plant fibers and the waste FPR are combined well, and the strength property of the material is improved effectively; the wetting agent facilitates dispersion of the waste FPR in a system, properties of the various components are played fully, the composite material with good properties is prepared by a wet-method papermaking technology, and reasonable reusing of resources is realized; and the preparation method is simple and feasible, and the recycling rate is high and can reach 100%.

The invention relates to a fulling process of a woolen sweater, belongs to the technical field of fulling finishing and aims to solve the problem that a fulling treatment consumes a great number of reagents. According to the technical scheme, the fulling process comprises the following steps: carrying out cleaning treatment, fulling treatment and dehydration drying; soaking a woolen sweater into acleaning solution for 8-12 minutes at 18-25 DEG C, and removing the cleaning solution so as to obtain a moistened woolen sweater; soaking the moistened woolen sweater and a finished product woolen sweater into clean water, carrying out ultrasonic treatment, soaking the moistened woolen sweater into a fulling liquid, and carrying out fulling treatment for 25-35 minutes at 28-40 DEG C so as to obtain a finished product moistened woolen sweater; carrying out ultrasonic treatment on the finished product woolen sweater and a moistened woolen sweater of a next batch, dehydrating the finished product woolen sweater after ultrasonic treatment, and drying at 70-80 DEG C. The fulling process has effects of being small in reagent consumption and environmentally friendly and pollution-free, and is applied to fulling finishing on woolen sweaters.

The invention provides an enhanced modified polypropylene reclaimed material and a preparation method thereof. The enhanced modified polypropylene reclaimed material is prepared by mixing, extruding and granulating 30 to 75 parts of polypropylene reclaimed material, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted maleic anhydride, 10 to 25 parts of medium-alkali glass fibers, 0.2 to 1 part of antioxidant and 0.5 to 2 parts of bis(tert-butyl peroxy)diisopropyl benzene. By introducing the polypropylene grafted maleic anhydride into the polypropylene reclaimed material, a group with high polarity and reactiveness is introduced, so that the material is high in polarity and reactiveness, and the compatibility of the polypropylene and fibers is greatly improved; and meanwhile, the cross-linking degree of the material is increased by virtue of the bis(tert-butylperoxy)diisopropyl benzene, the dispersity and compatibility are excellent, the rigidness and flexibility balance is excellent, and the enhanced modified polypropylene reclaimed material can be used for producing a product with high requirement on the balance of the rigidness and flexibility.

The invention relates to a method for continuously synthesizing cyclohexanecarboxylic acid in the field of fine chemical synthesis. The method comprises the following steps: 1) mixing benzoic acid anda solvent cyclohexanecarboxylic acid, and preheating; 2) preparing an emulsion; 3) preparing a mixture; and 4) carrying out gas-liquid separation. Waste heat in a cyclohexanecarboxylic acid product is used for heating an auger with a jacket, the heated auger is fed back and preheated to slowly mix and preheat solid benzoic acid and the solvent cyclohexanecarboxylic acid, the preheating temperature of the solid benzoic acid and the solvent cyclohexanecarboxylic acid is 80-135 DEG C, and the raw materials are preheated through heat generated by reaction, so that the activity of the raw materials is improved, the synthesis reaction is facilitated, and the synthesis reaction period is shortened; and the heat in the synthesis reaction is reasonably recycled, so that the maximization of enterprise benefits is facilitated, and the current national environmental protection requirements are met.

The invention discloses an organic loss-controlled fertilizer prepared by mushroom dreg, which is prepared from, by weight, 30-40 parts of mushroom dreg, 20-30 parts of biological carbon powder, 15-20parts of organic amino acid powder, 8-12 parts of organic humic acid, 5-10 parts of sodium silicate, 10-15 parts of potassium fulvic acid, 4-8 parts of sodium carbonate dodecylbenzene, 3-6 parts of bio-enzyme, and 2-5 parts of chelating zinc. The fertilizer takes mushroom dreg as the main raw material, the reasonable reuse of the resource is realized; the biological carbon powder, the organic amino acid powder, and the organic humic acid are used as ingredients; the waste straw is recycled into wealth, thus the environment pollution is solved, rich organic matters are provided for the soil, the soil acidity or alkalinity is improved, the exchange of soil cation and anion is increased to promote the crops absorption; the fertilizer belongs to environment-friendly fertilizer.

The present invention discloses a method for producing microbial phytase. The present invention utilizes vinegar residue as a solid culture medium, and microbial strains can be inoculated to produce microbial phytase, then microbial phytase can be obtained after being fermented. The present invention has the following production technical processes: firstly, the vinegar residue culture medium is put into a container, then the water content of the culture medium is adjusted; secondly, the disinfection is carried on; thirdly, the inoculation is carried on under the condition of asepsis; fourthly, ferment is carried on. The method for producing microbial phytase in the present invention selects the waste -vinegar residue in vinegar production, thus changing waste into valuable, making the microbial phytase manufacturing cost greatly reduced, and resulting the reasonable reuse of the vinegar residue.

The invention discloses a network frequency collaboration method and device based on macro-micro sector service absorption, and the method comprises the steps: determining the macro-micro type of a station; calculating a first inflection point value of the business volume bearing capacity of each frequency band, and further calculating the business volume bearing capacity of the whole sector after frequency coordination; judging whether the service volume bearing capacity of the whole sector is greater than or equal to the current service volume of the station sector after frequency coordination; if yes, carrying out the frequency dechirping processing; if not, according to the macro-micro type of the station, calculating the total value of the absorption service volume of the peripheral sectors by adopting a peripheral opposite sector absorption mode or a peripheral sampling point proportion pre-estimation absorption capability mode; and determining a frequency coordination scheme according to the business volume bearing capability of the whole sector after frequency coordination, the current business volume of the station sector and the total value of the business volume absorbed by the peripheral sectors. According to the scheme, different absorption modes are formulated according to absorption characteristics of macro and micro sectors, and scientific frequency collaboration is realized.

The invention discloses a modified polypropylene recovery material and a preparation method thereof. The modified polypropylene recovery material is prepared from the following components in parts byweight: 30-75 parts of polypropylene recovery material, 10-30 parts of high-density polyethylene, 5-15 parts of polyethylene grafted acrylic acid, 10-25 parts of alkali-free glass fiber, 0.01-0.02 part of antioxidant and 0.5-2 parts of 2,5-dimethyl-2,5-di(tert-butylperoxyl)hexane. The modified polypropylene recovery material and the preparation method disclosed by the invention have the beneficialeffects that the polyethylene grafted acrylic acid is added into the polypropylene recovery material to introduce strongly-polar reactive groups and commonly acts with the 2,5-dimethyl-2,5-di(tert-butylperoxyl)hexane, so that the strength, the adhesiveness and the dispersing property and the like of the material are improved. The modified polypropylene recovery material can be used for manufacturing products such as a step body of an automobile door with higher requirement for the rigid and tough balance; wastes of a washing machine tub are reasonably reused, so that the resource is saved andthe environment is protected.