97results about How to "Good economic viability" patented technology

The invention relates to polymeric coatings on proppants. These coatings have antimicrobial materials incorporated within these coatings. Preferably the antimicrobial materials have low water solubility. These antimicrobial agents are incorporated as particles whose surfaces are modified or these may also be incorporated within porous particles which are then added to the coating formulations. The antimicrobially active agents are incorporated in a fashion so that they can be released from these coatings in the environment of the proppants.

The invention relates to environmental-friendly pigment bismuth yellow and a production method thereof. The production method is characterized by comprising the steps of: firstly placing solid bismuth into a mixed acid solution made of nitric acid and hydrochloric acid for soaking, then taking out for reacting with a nitric acid solution to obtain a bismuth nitrate solution; keeping the nitric acid in an excessive state, then mixing and dissolving ammonium metavanadate or ammonium metavanadate and ammonium molybdate into ammonia water to obtain a vanadium-containing or vanadium and molybdenum-containing ammonia water mixed solution; under the condition of continuously stirring, simultaneously adding the bismuth nitrate solution and the mixed solution into a reactor containing a dispersing agent and a bottom fluid to obtain a light yellow sediment; and washing, drying and pulverizing according to a conventional method, finally, calcining and sieving to obtain the environmental-friendly pigment bismuth yellow with uniform granularity. The invention has the advantages of easy control of process conditions, good product dispersity, fine and uniform granularity, good powder activity, wide source and high utilization ratio of raw materials and better economic feasibility.

Proppants are used in oil and gas extraction, particularly in fracking operations. The invention relates to resin coated proppants. The coatings on proppants have antimicrobial materials incorporated within these coatings. The antimicrobially active agents are incorporated in a concentration less than 20% by weight of the coatings or the active agent from these coatings can be released from these coatings in the environment of the proppants.

The invention discloses a method for waste mixed plastic separation. The method comprises the following steps: crushing waste mixed plastic into mixed plastic particles, adding the obtained mixed plastic particles into a liquid medium I to perform sinking and floating separation, obtaining light-component plastic particles which are smaller than the liquid medium I in density and heavy-component plastic particles which are larger than that of the liquid medium I in density through the sinking and floating separation, adding the heavy-component plastic particles into a liquid medium II to perform surface treatment at a temperature of 70-100 DEG C and performing flotation separation on the heavy-component plastic particles subjected to surface treatment through a floating agent. According to the method, a variety of plastics in waste plastics can be efficiently and selectively separated. The method is simple to operate, is low in cost and meets the industrial application and production.

The invention relates to a method for treating acid waste water of disperse dye, belonging to the technical field of three-waste treatment in the dye industry. The method comprises the steps of: firstly, collecting sulfuric acid or hydrochloric acid waste water from industrial production; neutralizing the pH value of the acid waste water to 5.0-7.0; adding an adsorbent, namely activated carbon, kieselguhr or any mixture of the activated carbon and the kieselguhr to implement adsorption bleaching; filtering and separating the adsorbent; and finally evaporating, concentrating and crystallizing the waste water, thereby obtaining high-quality damp sodium sulfate or sodium chloride which can be reused after being dried. The method has the advantages of environment friendliness, high efficiency, good feasibility and the like.

The invention relates to a business park source-storage-load optimized configuration method comprising the steps as follows: (1) building a controllable air conditioning cold/heat load optimized regulation model; (2) getting a business park photovoltaic power generation system output curve; (3) determining an energy storage system charge and discharge strategy; (4) building a business park source-storage-load optimized configuration model; and (5) calculating the desired charge and discharge power values of an energy storage battery at each moment of time. According to the invention, an air conditioning load is used as virtual energy storage based on the controllability thereof in order to reduce the capacity of a required energy storage system, and the minimum cost for users to purchase electricity from a large grid is taken as an objective function to realize timely consumption of photovoltaic energy to the maximum, so the investment cost on energy storage is reduced, and the electricity charge is saved for users. The method is of high economic feasibility.

This invention relates to a method for purifying eutrophic water body by using water plant, particularly duck-weed and polycultured with other water plants. The adsorption, absorbing and biochemical reaction of said water plants are used for removing nitrogen, phosphorus and other pollutants. The plants occupies 70-90% of the surface of the water body. This invention has advantages of: simple operation, low management cost, obvious treatment effect, no secondary pollution, the water plants can be harvested as resource, being of a popularized treatment method for eutrophic water body.

The invention relates to a method for recovery processing sulfur-containing mixed waste gas in the production of viscose, which belongs to the technical field of the treatment of sulfur-containing waste gas in the production of viscose. The invention provides a novel technical route for the existing waste gas treatment situation of the viscose production enterprise, the sulfur-containing waste gas of low concentration is pretreated firstly, then the sulfur-containing waste gas is selectively absorbed by adopting the spraying absorption technology, then the absorption liquid is treated, and finally a product with high cost performance is obtained. The technical route is high in industrialization degree, the mixed waste gas consisting of low-concentration H2S, CS2, vast air and little solid waste in the production process of viscose industry can be effectively treated in time, certain economic benefit and social benefit also can be obtained, the technical feasibility and economical feasibility are good, and the sustainable development requirement of the society can be met.

The invention relates to a preparation method of a liquid fermentation medium for bacillus thuringiensis, which includes mushroom residue preprocessing and culture medium ingredient supplementation. The preparation method disclosed by the invention includes the following steps: strong acid is utilized to degrade the cellulose and pleurotus eryngii mycelium in mushroom residue into sugar and a small amount of protein, phosphorus and trace elements as main nutrient substances contained in residue extract, which can be utilized by the bacillus thuringiensis, meanwhile, nitrogen source and inorganic salt ions are supplemented partially, the bacillus thuringiensis can grow and reproduce under the condition of maintaining appropriate pH, temperature and ventilation, so that insecticidal active substances, such as spores and insecticidal crystal protein, can be produced, and the fermentation medium is concentrated and dried to form an environment-friendly and secondary pollution-free microbial insecticide product. The preparation method not only solves the problem of mushroom residue processing and prevents the mushroom residue from polluting the environment, but also realizes the comprehensive utilization of resources, and meanwhile, the preparation method also greatly reduces the production cost of the microbial insecticide, and turns waste into treasure.

The invention provides a microchannel reaction device which comprises an upper sealing plate, a lower sealing plate and at least one microchannel reactor located between the upper sealing plate and the lower sealing plate. The microchannel reactor comprises a microchannel reaction plate, a first heat exchange channel plate, a second heat exchange channel plate, a third heat exchange channel plate and a fourth heat exchange channel plate, the first heat exchange channel plate and the second heat exchange channel plate are located on the upper surface of microchannel reaction plate, and the third heat exchange channel plate and the fourth heat exchange channel plate are located on the lower surface of the microchannel reaction plate. The microchannel reaction plate comprises an inlet, a preheating channel connected with the inlet, a reaction microchannel and an outlet connected with the reaction microchannel, the preheating channel is located between the first heat exchange channel and the third heat exchange channel, the reaction microchannel is connected with the preheating channel and located between the second heat exchange channel plate and the fourth heat exchange channel plate, and an olefin catalyst is arranged in the reaction microchannel. According to the microchannel reaction device, a microchannel reaction system and a method for preparing olefin, the problems that when olefin is prepared in the prior art, the selectivity of olefin is reduced due to a local hot spot, and the catalyst fails are solved.

The invention relates to a separating method of mixed plastics and belongs to the technical field of waste plastic recovery. The method includes subjecting mixed plastic particles to surface modification by dipping the mixed plastic particles into an aqueous solution containing a wetting agent until an adsorption amount of the wetting agent on surfaces of the mixed plastic particles is not less than 5 g/t, performing solid liquid separation, adding the obtained solid into an eluant, eluting for not more than 20 min, performing solid liquid separation to obtain solid that is eluted mixed plastic particles, and subjecting the eluted mixed plastic particles to floatation to obtain a single plastic with high purity. The method is high in separation efficiency, simple in operation, easily controllable and low in cost and facilitates large-scale industrial application.

The invention relates to a polyurethane foam product and a preparation method and application thereof, and belongs to the field of polymer foam materials. The polyurethane foam product is prepared from an NCO-active-group-containing polymer and water, and the polyurethane foam product has a density of 0.08-0.8 g/cm<3> and a resiliency of 55-75%. The NCO-active-group-containing polymer is directlyreacted and foamed with the water, so that the content of allophanate groups in the prepared polyurethane foam product is high, and compared with carbamate groups formed by reacting NCO groups of a traditional polyurethane foam product with polymer polyol, the allophanate groups in the polyurethane foam product have higher polarity. Therefore, the prepared polyurethane foam product has the characteristics of low compression deformation, high resilience, excellent mechanical strength and the like.

The invention relates to a preparation method of a dopamine stabilized Pickering emulsion and application thereof on immobilized enzymes. The preparation method is characterized by that hydrophobic modified SiO2 particles are used as a stabilizer, n-heptane is used as an oil phase, a Tris buffer is used as an aqueous phase, and a high speed homogenizer is used for stirring to obtain a SiO2 particle stabilized Pickering emulsion; dopamine is added into the SiO2 particle stabilized Pickering emulsion, and the obtained emulsion is incubated in a water bath shaker at room temperature to produce ablack Pickering emulsion stabilized by both SiO2 and polydopamine. Enzymes are immobilized in an emulsion aqueous phase to determine the stability and application performance of the Pickering emulsion. The prepared dopamine stabilized Pickering emulsion consists of SiO2 nanometer particles and a polymer coating layer, so that the stability is good, and coating of various enzymes can be realized, thereby making the immobilized enzymes have very good thermal stability, storage stability and reusability; and the Pickering emulsion is low in cost, and the preparation method is easy for operation,so that the Pickering emulsion has very good economic feasibility and practicality.

The present invention relates to a process of electronic management of organic production including cluster formation of farmers, training of farmers according to organic farming standards, providing organic compliance manual, farm diary, organic bulletin to the farmers, on-farm input management, collection and analysis of soil, providing identity card, soil health card and in ‘in soil culture’, providing NADEP and Cow Pat Pit and demonstrations on on-farm management. Further disclosed is a process of implementation of e-traceability. The information about the day to day activities taken up by all the registered farmers in the fields is collected as per the prescribed format of e-traceability by the cluster in charge on monthly basis and further uploaded in the website. Furthermore provided is a process for setting up an Internal Control System (ICS) for internal inspection of assessment of risk and its management is followed by the approval of decision from an approval committee. This invention relates to a process of external inspection from certification body and finally, certificates are provided to the farmers at the end of each conversion year till the three years.

Provided is an eco-friendly poly(propylene carbonate) resin composition for a sheet, which is characterized by using a poly(alkylene carbonate) resin developed by efficiently utilizing carbon dioxide, which is a major contributor to global warming, as a main material, and including appropriate additives, such as, a strength modifier, and a flexibilizer, thereby completely solving environmental hazards controversy of the existing polyvinyl chloride resin products; exhibiting excellent mechanical and thermal properties, processability, post processability (printability, embossing and surface treatment, laminating characteristics) and superior anti-flaming property (low smoke density) and elongation characteristics as compared with the existing polyvinyl chloride resin products; and overcoming an extruding production method which is a small-sized production manner, corresponding to a big defect in thermoplastic plastics emerged as substitutes for polyvinyl chloride resin products and thus applying a calendering process method which is a mass production manner.

A method for producing glycolide provided with: step (1) wherein a GAO composition, which preferably contains a high-boiling-point organic solvent or a solubilizing agent, is supplied into a reactor and heated to a temperature at which a depolymerization reaction of the GAO occurs; step (2) wherein the heating is continued to subject the GAO to the depolymerization reaction, thereby producing glycolide; step (3) wherein glycolide is distilled out of the reactor; step (4) wherein the distillate is introduced into a rectifier and is rectified by means of gas-liquid countercurrent contact; and step (5) wherein glycolide is recovered. A method for purifying crude glycolide provided with: step (i) wherein a crude glycolide composition, which preferably contains a high-boiling-point organic solvent or a solubilizing agent, is supplied into a reactor and heated so that glycolicde is distilled; step (ii) wherein the distillate is introduced into a rectifier and is rectified by means of gas-liquid countercurrent contact; and step (iii) wherein glycolide is recovered. A glycolide producing apparatus and a crude glycolide purifying apparatus, each of which is provided with a reactor and a rectifier.

The invention discloses an oil sludge drying system and a method for drying oil sludge through the system in cooperation with a chemical agent. The system is composed of a drying chamber, a drying bed, a ventilation system, an auxiliary heat system, a liquid accumulation system and a turner, the drying chamber is composed of a ceiling and surrounding walls, and the drying chamber and the drying bed form a closed space; the drying bed is composed of heavy load ground, a heat insulation layer and an impermeable layer, the ventilation system is composed of an air inlet pipe, a drying tank, an airoutlet pipe, an induced draft fan, a burner and a chimney, and the auxiliary heat system is composed of a heat source and a radiator; the liquid accumulation system is composed of a liquid accumulation ditch and a liquid accumulation tank. A solid surfactant, a coagulant, CaO and cement are added to the oil sludge according to a certain proportion for even mixing, the mixture is flat laid and stacked in the drying chamber, and under the condition of forced ventilation, the water content is lowered by 30% or above within 5 days. According to the system and the method, the methods such as low-temperature auxiliary heat, forced ventilation, natural drying and the chemical agent are integrated, and the system has the advantages of being simple in structure, convenient to operate and low in cost and has good application prospects.

A device for applying a coating medium onto a substrate, includes at least one spray valve that has a nozzle opening that can be adjusted with regard to its effective outlet area using a closing mechanism, whereby the substrate can be moved past the spray valve, which can be supplied with the coating medium under pressure via a supply line, whereby the positioning device is assigned a regulator that has at least one target value input for the instantaneously required outflow rate of the coating medium from the spray valve and at least one actual value input for the mass flow rate through a supply section arranged in front of the nozzle opening, and from the deviation between these values, the regulator forms an adjustment signal that moves the positioning device in the direction to offset the deviation.

The present invention relates to an improved method for isolating ingredients from biological material, in particular from sugar beet (Beta vulgaris).

A roofing system including two techniques that confer water tightness to exposed substrates, whether cimentious or not, used on roofs of current buildings. The system increases reliability of the surfaces against the percolation of water. The system includes the process of applying, on exposed porous or non-porous surfaces (1), mud slab, regularized or not, of concrete, wood, metals, etc., on top of baseboards or parapets (2), a high adherence organic resin (4), that is self-leveling, visco-elastic, thermoplastic and hydrophobic, covered by film strips (5) of aluminum laminated with thermoplastic copolymers, thermally welded at its overlaps (7) by a thermal process and fastened in the vertical surfaces of the structures by groups (6) of screws, plastic washers, and expansion shells. The flow of rain water is guided by pipelines (3) of PVC or other equivalent material.

The invention discloses a sensing water depth range-viewfinder and an operation method thereof. The sensing water depth range-viewfinder comprises an indicator light, a humidity sensor, a marker post,a displacement sensor, an annular float and a power supply for supplying power. The indicator light is installed at the top of the marker post; and the humidity sensor is installed at the upper partof the marker post, the humidity sensor comprises a hygristor and an electromagnet used for controlling the displacement sensor, and the electromagnet is activated by output current of the hygristor.The displacement sensor is installed at the lower part of the marker post and extends outwards, the displacement sensor comprises a slide rheostat, a sender unit and an ampere meter, the annular floatis installed at the lower part of the marker post in a sleeving mode, the slide rheostat is connected with the annular float, the annular float pulls the slide rheostat to change a resistance value,the current output by the slide rheostat is converted into depth through the ampere meter, the displacement sensor judges whether the measured depth is more than the height of an automotive chassis ornot, and if the depth is more than the height of the automotive chassis, a danger signal is sent to a vehicle owner by the sender unit. The sensing water depth range-viewfinder and the operation method can accurately detect the depth of a flooded road section, and a flameout accident caused by travelling in water of a vehicle is avoided.