34results about How to "Realize full utilization" patented technology

The invention discloses a sewage treatment system which comprises a collection tank, a biogas tank, a residue discharge tank and a biogas liquid collection tank; the biogas tank, which is a closed tank, is connected with the collection tank through a feed opening and has an impervious layer laid at the bottom; excreta, sewage or the like is placed in the methane tank and automatically form a biogas residue layer, a biogas liquid layer and a biogas layer after fermenting in the biogas tank, and a residue discharge opening, a liquid outlet and a gas collecting opening, which are communicated with the biogas residue layer, the biogas liquid layer and the biogas layer respectively, are arranged at the periphery of the biogas tank; the residue discharge tank is communicated with the residue discharge opening through a pipeline; the biogas liquid collection tank is communicated with the biogas tank through the liquid outlet; a biogas liquid purification system is connected with the biogas liquid collection tank. According to the sewage treatment system provided by the invention, biogas, biogas liquid and biogas residue, which are produced through centralized processing of sewage, are utilized effectively, so that all-around utilization of sewage can be realized; meanwhile, water and residue can be separated automatically through reasonable pipeline design, the sewage utilization rate is high, the engineering construction cost is low, the economic benefit is high, and large scale popularization can be performed easily.

The invention discloses a three-blade propulsion and power generation two-purpose wind surf, which mainly comprises a generator set (1) and a wind surf rotating mechanism (9) fixed on a deck (10) of a hull, a wind surf mast (2) rotatably connected with the wind surf rotating mechanism (9) and only rotating toward the design direction, a first propulsion and power generation surf face (3) arrangedon the upper part of the wind surf mast (2) and connected with the wind surf mast (2) through a first propulsion and power generation surf face connecting rod (4), a second propulsion and power generation surf face (5) connected with the wind surf mast (2) through a second propulsion and power generation surf face connecting rod (11), a third propulsion and power generation surf face (8) connected with the wind surf mast (2) through a third propulsion and power generation surf face connecting rod (7), and a wind force and wind direction acquisition and analysis system (6) arranged on the top of the wind surf mast (2). The three-blade propulsion and power generation two-purpose wind surf can make the efficiency of the conventional surf improved by 20 to 40 percent, can operate under the condition of any wind direction in a main propulsion and auxiliary power generation mode, and saves the oil of a main engine or a generator of a ship by over 6 percent.

The invention provides a method for the production of Cordyceps militaris enzyme by enzyme-fermentation coupling. The production technology is based on the metabolic basis of two main combined enzyme preparations coupled with microbial fermentation to produce Cordyceps militaris enzyme, and adopts optimized conditions and reasonable techniques to make Cordyceps militaris The cell wall dissociates and transforms, and the active ingredients are fully released, coupled with microbial co-fermentation, to produce highly active enzymes and specific physiologically active substances, especially to improve the taste and digestibility of Cordyceps militaris, forming high-quality Cordyceps militaris enzymes. The technical invention is to biodegrade the cell wall of Cordyceps militaris through food-grade compound enzymes, coupled with the second-stage fermentation and separation of food-grade Lactobacillus plantarum to obtain liquid Cordyceps militaris enzymes, which can be used in food, beverages, seasonings and Addition of cosmetics and tobacco and wine materials.

The invention relates to a sawtooth oak cup / polylactic acid composite material and a preparation method thereof. The composite material is prepared from sawtooth oak cup, polylactic acid, plasticizing agents and compatibilizers. The composite material comprises the following ingredients in percentage by weight: 10 to 90 parts of polylactic acid, 20 to 80 parts of sawtooth oak cup, 0 to 20 parts of compatibilizers, 0 to 2 parts of plasticizing agents, 0 to 5 parts of antioxidizers and 0 to 5 parts of lubricating agents. The sawtooth oak cup / polylactic acid composite material can be widely usedfor manufacturing disposable plastic products such as environment protection tableware, trays, fruit trays, package containers, packing object foaming filling materials, electric appliance cases, forestry landscape seedling containers and the like, and belongs to a composite material with the actual application value.

The invention relates to the technical field of cotton stalk utilization technology, in particular to a method for separating cellulose, hemicellulose and lignin in cotton stalks. The method comprises the following steps: 1) pretreatment; 2) squeezing dry; 3) steam explosion treatment; 4) washing with water to extract xylose; 5) hydrolyzing the dehydrated solid in the presence of sulfuric acid to obtain a xylose hydrolyzate; 6 ) After the xylose hydrolyzate and washing water pass through the bipolar membrane to recover sulfuric acid, they are combined with the washing solution to recover xylose. In addition, it also includes 7) press filtration, the filtrate obtained is lignin potassium, and the solid material is washed until neutral and used directly for papermaking; 8) the press filter liquid and the washing water of the solid material are concentrated by reverse osmosis membrane and spray-dried to prepare compound fertilizer . The method is simple and has strong operability, and can better realize the separation and complete utilization of cellulose, hemicellulose and lignin in the cotton stalks.

The invention discloses a method for preparing sodium carboxymethylcellulose from residues generated by producing biobutanol from maize straw. A by-product fiber slurry during production of biobutanol from the maize straw is taken as a raw material, and is subjected to pulverization, basification, etherification, washing, centrifugation, drying, pulverization and sieving to prepare the finished sodium carboxymethylcellulose. The residues generated in the process of producing the biobutanol from the maize straw are utilized fully and changed into treasure, so the industrial development of the production of the biobutanol from the maize straw is promoted, and the problems of deficient raw materials and high production cost during the production of the sodium carboxymethylcellulose are solved. The appearance of the prepared sodium carboxymethylcellulose is white or faint yellow powder, the pH value is between 6.0 and 8.5, the moisture content is less than or equal to 10 percent, the degree of substitution is between 0.6 and 1.2, the viscosity is between 35 and 6,500 mPa.s, and the chloride content is less than or equal to 1.2 percent; and the sodium carboxymethylcellulose has excellent performance, and can be applied in the industry such as daily chemical engineering, papermaking, oil exploitation and the like.

A kind of epoxidized soybean oil and rosin-cellulose-based polymer blend film and its preparation method and application, maleopimaric anhydride is carried out acid chlorination to obtain MPACl; ethyl cellulose, 4-dimethylaminopyridine, tetrahydrofuran and MPACl is added to the reactor for reaction, the product is precipitated in water, dissolved and reprecipitated with THF, filtered, and vacuum-dried to constant weight to obtain EC-MPA; epoxidized soybean oil and EC-MPA are dissolved in dichloromethane, and poured into In a polytetrafluoroethylene mold, an epoxy soybean oil rosin-cellulose-based polymer blend film was obtained. The blended film prepared by the present invention has high EC molecular weight and high strength, and the rosin structure contains related unsaturated groups, which can realize the function of ultraviolet absorption and fluorescence emission effect, and the characteristics of ESO flexible molecular chains. Cellulose, rosin and The application of epoxidized soybean oil in bio-based polymer anti-stretch film, anti-ultraviolet radiation and fluorescent emission materials provides a way.

The invention discloses a paper hydrophobic modifying agent, its preparation method and its application. A paper hydrophobic modifying agent, its structural formula is: wherein R is rosin or its derivatives. The present invention prepares the paper hydrophobic modifier by the reaction of rosin or its derivatives, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and silane coupling agent, which can The paper is compounded and modified, and through the synergistic effect, the hydrophobic and flame-retardant paper is obtained, and at the same time, it has good mechanical strength.

The preparation method of the thermoplastic starch material based on non-grain woody vegetable oil, the preparation steps are: stirring and heating the fatty acid and its derivatives and controlling the temperature to 140-160 °C, and then setting the carboxyl molar ratio of the fatty acid and its derivatives to be 1.1-1. Add small molecule polyamine dropwise at a ratio of 1.4:1, then add catalyst accounting for 0.25%~2.5% of the total reaction system mass, raise the temperature to 180~220°C, react for 1~4h, and remove unreacted small molecule polyamine by vacuum distillation That is to prepare the aliphatic amide plasticizer; mix the prepared aliphatic amide plasticizer with glycerol and starch according to the mass ratio of (10~50):(10~30):70, collect the materials and seal them at room temperature Store for 12-36 hours, and finally process the product at 100-160°C by kneading method.

The invention relates to a preparation method of a urea-formaldehyde resin from a straw ethanol byproduct, which comprises the following steps: 1. adding a formaldehyde solution, water, a prepressing modifier, a first batch of urea, a first batch of melamine and a first batch of straw ethanol byproduct into a reactor, regulating the pH value, and heating to react; 2. regulating the pH value and controlling the temperature to react to a cloud point; 3. adding a second batch of urea, a second batch of melamine and a second batch of straw ethanol byproduct, regulating the pH value and controlling the temperature to react; 4. adding a third batch of melamine and a third batch of straw ethanol byproduct, regulating the pH value and controlling the temperature to react; and 5. cooling, adding a third batch of urea to react, cooling and discharging. The straw ethanol byproduct used by the method has the advantages of lower ash content and lower sugar content, and the lignin molecule structure maintains multiple phenolic hydroxyl groups, alcoholic hydroxyl groups and replaceable active hydrogen. By using the straw ethanol byproduct instead of part of the urea or phenol to prepare the adhesive, the method can save the petroleum resources and implement waste recovery.

The invention discloses a method for cultivating camellia bonsai by grafting the roots of camellia oleifera, comprising the steps of digging camellia oleifera, selecting roots, grafting, potting, post-potting management and shaping and pruning, and selecting suitable roots of camellia oleifera as grafting rootstocks, The annual or semi-annual high-quality branches of camellia plants are collected as grafted spikes, and grafted by cutting grafting. After grafting and grafting, they are managed in pots, and the grafted camellias are trimmed according to the ideal shape of bonsai. The present invention adopts the grafting carried out by the roots of camellia oleifera, realizes rapid replanting of low-yield camellia oleifera forests, promotes the existing large-area low-yield camellia oleifera forest reconstruction project in China, reduces waste of resources, and realizes full utilization of camellia oleifera low-yield forest resources , with good economic, social and ecological benefits.

The invention discloses a Darrieus propulsion power generating dual-purpose type sail which mainly comprises a generator set (1), a sail rotating mechanism (28), a sail mast (2), a propulsion sail surface, a vertical shaft Darrieus wind power generating blade (19) and a wind force and direction collecting and analyzing system (14), wherein the generator set (1) and the sail rotating mechanism (28) are fixed on a ship deck (29); the sail mast (2) is rotatably connected with the sail rotating mechanism (28) and rotates only towards the design direction; and the propulsion sail surface connected with the sail mast is arranged at the upper part of the sail mast, the vertical shaft Darrieus wind power generating blade (19) is connected with the propulsion sail surface, and the wind force and direction collecting and analyzing system (14) is installed at the top of the sail mast. The invention can improve the efficiency of the conventional sail by 20 percent to 50 percent; and by adopting two energy-saving ways, the Darrieus propulsion power generating dual-purpose type sail can be run under any wind direction condition and save ship host machine or engine oil by more than 6 percent and has greater economy, practicability and social value.