50results about How to "Reduce pollution index" patented technology

The invention relates to a line recommendation system and method based on Beidou satellite/GPS (global positioning system) data. The line recommendation system based on Beidou satellite /GPS (global positioning system) data comprises a Beidou/GPS terminal and a server, wherein the Beidou/GPS terminal is used for positioning and sending the Beidou/GPS information of a vehicle; the server is used for receiving the Beidou/GPS information of the vehicle; according to the unique identification of the vehicle, the track data of each vehicle is grouped; according to a truncation rule, the track data record of each vehicle is truncated to generate a plurality of paths; and after the paths are subjected to clustering analysis, a recommendation line is output according to different attributes. When the invention is implemented, the problem of insufficient instantaneity of the freight recommendation line can be solved, a proper freight line can be conveniently selected for a driver according to the practical situation, and the logistics industry efficiency and the use ratio of a freight vehicle can be improved.

The invention discloses a seawater desalinating technique through film integrated method, which comprises the following steps: passing the seawater through self-rinsing filter; predisposing the rinsed seaward into hyperfilter device; boosting the seawater through the boost pump; removing possible micro-particle in the inlet water of counter-osmosis system of the seawater through seawater safety filter; elevating the inlet pressure of the counter-osmosis system of the seawater; desalinating through counter-osmosis system of the seawater; removing micro-particle in the inlet water of counter-osmosis system of the fresh water through fresh water safety filter; elevating the inlet pressure of the counter-osmosis system of the fresh water; desalinating through counter-osmosis system of the fresh water. The invention reduces the adding quantity of the chemicals and rinsing times of reverse osmosis membrane effectively, which improves automatic degree with stable property and small equipment occupying area.

The invention relates to the field of technologies for treating environmental engineering wastewater, in particular to a method and a system for treating desulfurization wastewater in a zero-discharge manner on the basis of electrodialysis. The method and the system have the advantages that electrodialysis concentrated water is regulated and distributed into a bipolar membrane electrodialyzer and a flue evaporating apparatus in membrane treatment phases, acid and alkali can be manufactured by the bipolar membrane electrodialyzer and flow back for pretreatment and membrane treatment, and accordingly the wastewater can be reduced and recycled; electrodialysis fresh water flows back for membrane treatment, accordingly, the reuse rate of the fresh water can be increased, the pretreatment chemical feeding cost and chemical preparation workload can be reduced, and desalting load and tail-end evaporation crystallization load on the system can be integrally relieved; tail-end treatment of the system is effectively regulated, accordingly, the method and the system can cope with different types of variation of water quality and water volumes of power plants, and the integral system can assuredly stably run; zero-discharge effects are realized by the system for treating the desulfurization wastewater, environment-friendly design requirements on treating waste by the aid of waste can be met, and the method and the system have broad application prospects.

The invention discloses a system and a method for treatment and recovery of electronic electroplating wastewater. The system comprises a wastewater recovery and treatment unit and an RO (reverse osmosis) concentrate treatment unit. A grille, an adjusting tank, a coagulation reaction device, a settlement and membrane separation device, an ozone oxidation tank, an ozone digestion tank, a cartridge filter and an RO device are connected to the wastewater recovery and treatment unit sequentially. A hydrolytic acidification tank, a contact oxidation tank and a settling tank are connected to the RO concentrate treatment unit. The electronic electroplating wastewater is treated through the grille, the adjusting tank, the coagulation reaction device, the settlement and membrane separation device, the ozone oxidation tank, the ozone digestion device, the cartridge filter and the RO device. RO fresh water is then reused on an electronic electroplating line. RO condensed water is effectively treated through the hydrolytic acidification tank and the contact oxidation tank and stably meets the primary specification GB8978-1996 of integrated wastewater discharge standard, and discharge requirements DB4426-2001 of discharge limits of water pollutants of Guangdong.

The invention relates to an intelligent roller friction testing machine of a conveyor belt. The intelligent roller friction testing machine comprises a drive system and a tension system, wherein the drive system is used for driving a roller to rotate, and the tension system is used for regulating the tension of a sample to be detected in real time. The intelligent roller friction testing machine is characterized in that the tension system comprises a tension sensor which is arranged on a linear guide rail and is capable of automatically detecting the tension, and the tension sensor is connected with a direct current motor by a ball screw. The intelligent roller friction testing machine provided by the invention is suitable for roller friction tests of a fabric core flameproof conveyor belt and other flameproof conveyor belts. The testing machine comprises an intelligent testing device which can be used for automatically adjusting a constant tensioning force, automatically increasing the constant tensioning force according to a standard after operating during a certain time, automatically detecting a broken belt, automatically detecting open fire, automatically detecting temperature, printing an operation test curve and reporting data; and moreover, a fully enclosed smoke collecting and discharging device is adopted, so that an environment pollution index is reduced.

The invention provides a pharmaceutical wastewater treating system, and relates to the field of environmental protection. The pharmaceutical wastewater treating system comprises a mixing tank, a settling tank, a multi-stage electrolytic tank, a multi-stage Fenton phase tank, a first heater, a first evaporator, a second heater, a second evaporator, a third heater, a third evaporator, a gas-liquid separator and an intermediate tank. The mixing tank is communicated with the settling tank, the multi-stage electrolytic tank is connected with the multi-stage Fenton phase tank, the multi-stage Fenton phase tank is connected with the first heater, the first evaporator is communicated with the second heater, the second evaporator is communicated with the third heater, the third evaporator is connected with the gas-liquid separator, the intermediate tank is connected with the multi-stage Fenton phase tank, and the intermediate tank is connected with a third circulation pipe through a vacuum pipe. The pharmaceutical wastewater treating system is high in waste treatment efficiency, the pollution index of treated waste water is greatly reduced, and the content of organics and the content of hazardous substance are obviously reduced. The invention further provides a treating method.

The invention discloses a high-salt wastewater treatment reuse system and method. The system comprises a regulating tank, a precipitation tank, a clean water tank, a self-cleaning filter, an ultrafiltration device, a primary reverse osmosis unit and a secondary reverse osmosis unit, wherein the regulating tank is used for balancing the water quality and avoiding the precipitate; the precipitation tank is connected with the regulating tank, and used for precipitating water from the regulating tank; the clean water tank is connected with the precipitation tank, and used for regulating the pH value of upper clean water in the precipitation tank; the self-cleaning filter is connected with the clean water tank, and used for filtering the water from the clean water tank; the ultrafiltration device is connected with the self-cleaning filter, and used for carrying out ultrafiltration on the produced water from the self-cleaning filter; the primary reverse osmosis unit is connected with the ultrafiltration device, and used for carrying out primary reverse osmosis treatment on the produced water from the ultrafiltration device; and the secondary reverse osmosis unit is connected with the primary reverse osmosis unit, and used for carrying out secondary reverse osmosis treatment on the produced water of the primary reverse osmosis unit, thereby obtaining the reused produced water. The system can effectively lower the carbonate hardness and remove partial organic matters and colloids. The system has the advantages of high desalting rate and high recovery rate.

The invention discloses a method for co-producing ethanol, cellulose and compound fertilizer by using crop straws as a raw material, which comprises: adding coarsely ground crop straws and acidic aqueous solution of which the pH value is 2 to 4 in mass part ratio of 1:2-3 into a cooking kettle and heating the mixture to 60 to 90 DEG C to cook the mixture for 4 to 8 hours; squeezing reactants to obtain solution, neutralizing the solution, regulating the concentration of the solution to 15 to 25 percent, producing ethanol by the conventional fermentation process, washing the straw residues obtained after squeezing by clean water, using the liquid obtained after the washing in the feeding of next batch of raw material, washing and squeezing the resulting material again, and mixing the obtained straw residue with aqueous solution containing a lignin leaching agent in a mass part ratio of 1:6-8, heating the mixture to 60 to 90 DEG C for cooking the mixture for 4 to 8 hours, filtering the mixture to obtain a coarse product of cellulose, washing and bleaching the coarse product of cellulose, filtering the coarse product of cellulose under compression for dewatering and drying the coarse product of cellulose to obtain a finished product of cellulose, wherein the bleaching liquid is used in the reaction of the next batch of raw material; and concentrating residual liquid obtained after the extraction of ethanol and the filtration of the coarse product of cellulose, drying the concentrate by spray for granulation, and making the compound fertilizer. As the method can extract ethanol and coproduce the cellulose and the compound fertilizer, so the drawbacks of single product production, waster source waste and heavy environmental pollution in the prior art are avoided.

The invention discloses a PVDF antibacterial film doped with nano-zinc oxide and a preparation method. The film is prepared by certain parts, by weight, of nano-zinc oxide, pore-foaming agent, organic solvent and PVDF, the steps are that (1) the weighed pore-foaming agent and nano-zinc oxide are added to the organic solvent for ultrasonic dispersion; (2) the weighed PVDF is added to the organic solvent, and the mixture is heated, stirred, stood and defoamed to obtain a casting film liquid; (3) after the casting film liquid is scrapped into a film, the film is placed into a solidification liquid and soaked until the film falls, and the PVDF antibacterial film doped with the nano-zinc oxide is obtained. The formula is reasonable, the use is convenient, the antibacterial rate of the PVDF antibacterial film doped with the nano-zinc oxide can be improved by more than 60%, the film contamination index is reduced by 80%, and the microbial contamination resistance of the film is remarkably enhanced. The water flux is improved by more than 100%, and the hydrophilia is improved remarkably.

The invention provides an emulsified synthetic fuel and method of manufacture, wherein the emulsified synthetic fuel is in water-in-oil shape, its composition is, 550-800 parts by weight of fuel oil, 200-450 parts by weight of water, and 2-20 parts by weight of addition agent, the addition agent comprises non-ionic surface active agent with a HLB value of 2.5-8, a stabilizer and an anti-oxidizing agent. The invention also discloses the process for preparing the emulsified synthetic fuel.

The invention provides a method for extracting cellulose, lignin and composite fertilizer from cottonseed shell, which comprises the following steps: adding lignin dissolving agent and water into a container according to the proportion of 1-5:1000; adding 10-20 liquid amount of cottonseed shells; heating to 70-90 degrees centigrade and keeping for 6-10 hours; separating out crude fibers, rinsing, refining and drying to obtain the finished fiber product; sending the rinsed solution into the socking container for reuse; acidifying the solution in the first boiling pool, and press filtering to precipitate solid that is lignin; adjusting the pH value of the solution after lignin extraction to neutral, concentrating, drying, granulating to obtain composite fertilizer. Besides the cellulose, the invention can co-produce lignin and composite fertilizer, changes improves the abuses of single product, water resource waste and serious environment pollution existing in the current technologies in our country.

The invention belongs to the field of a chemical industry, and especially relates to an aqueous acrylic acid adhesive and a preparation method thereof. The aqueous acrylic acid adhesive comprises thefollowing components in parts by weight: 15-20 parts of acrylic acid, 10-15 parts of methyl acrylate, 10-15 parts of ethyl acrylate, 10-15 parts of acrylic acid-2-ethylhexyl acrylate, 10-15 parts of methyl methacrylate, 10-15 parts of butyl acrylate, 5-10 parts of dimethylolpropionic acid, 5-10 parts of an emulsifier, 5-8 parts of triethylamine, 3-5 parts of a silane coupling agent, 3-5 parts of ablocking agent, 3-5 parts of an adhesion agent, 3-5 parts of aqueous silicone oil, and 300-500 parts of deionized water. The technology is simple and easy to control, and a polymerization system is stable; the obtained adhesive has the advantages of good mechanical stability, storage stability, and compatibility with a general auxiliary agent, and is suitable for industrial production.

The invention discloses a medical ultrasonic cleaning machine. The medical ultrasonic cleaning machine comprises an ultrasonic cleaning box. An inner cavity is formed in the ultrasonic cleaning box. Acoustic panels are fixedly arranged on the outer sidewalls of the inner cavity. A semiconductor condensation plate is arranged on the surface of a noise reduction plate. Heating wires are arranged onthe inner sidewalls of the inner cavity. The bottom of the ultrasonic cleaning box is provided with water outlet holes. The right sidewall of the ultrasonic cleaning box is provided with a water inlethole. Fixed rods perpendicular to the sidewalls are arranged on the sidewalls of the ultrasonic cleaning box. The fixed rods are used for supporting a cleaning basket. The two sides of the cleaning basket are provided with a plurality of clamping grooves. A hollowed-out net plate is clamped to the clamping grooves. The top of the ultrasonic cleaning box is provided with a box cover. A hollow cavity is arranged on the inner side of the box cover. The hollow cavity is filled with noise reduction plate. In the ultrasonic process, if a temperature sensor senses that the water temperature in the ultrasonic cleaning box is higher than the set temperature, the semiconductor condensation plate is turned on to reduce the water temperature, and the purpose of controlling the water temperature to beconstant is achieved.

The invention provides a process for uniform spraying of a metal framework. The process includes the following steps that firstly, the surface of the metal framework is cleaned; secondly, the surface of the metal framework is dried; thirdly, at room temperature, protective spraying is conducted through a vacuum spraying machine; fourthly, curing is conducted, wherein baking temperature ranges from 100 DEG C to 160 DEG C, and time ranges from 5 min to 30 min. By the adoption of the process, the thicknesses of sprayed films are uniform, no compressed air exits in paint, no mixture of the paint and the air exists, and the pollution index of the spraying working environment is small.

The invention discloses a sewage treatment system adopting photocatalytic degradation membrane separation and relates to the technical field of membrane separation sewage treatment. The sewage treatment system comprises a double-layered pipe type ceramic membrane, wherein an ultraviolet lamp tube is arranged between inner and outer membranes of the double-layered pipe type ceramic membrane; nano-photocatalysts are arranged on the outer surface of the inner membrane and the inner surface of the outer membrane; the double-layered pipe type ceramic membrane adopts a filtering manner from outsideto inside and treated water is output from an inner cavity of the inner membrane of the double-layered pipe type ceramic membrane; hydrogen peroxide is input into an inner cavity between the inner andouter membranes; under the irradiation of ultraviolet light, the hydrogen peroxide has photo-Fenton reaction under the action of a catalyst to stimulate a lot of hydroxyl free radicals, so that pollutants are degraded. According to the sewage treatment system disclosed by the invention, high-concentration organic wastewater is selectively degraded; the degradation efficiency is high and the degradation is complete; nano-grade catalysts in a reaction liquid system can be recycled, and constant and catalytic properties of the catalysts in a reactor are kept; the system is continuously, effectively and stably operated and the anti-pollution performance and service life of the membrane are improved.

The application provides a fresh air discharging method and apparatus for an air conditioner, an electronic device, and a computer readable medium, and belongs to the technical field of air conditioners. The method comprises the following steps of obtaining a current air pollution index in a preset area after a starting instruction is received, wherein the preset area is an area where the air conditioner is adopted to perform fresh air ventilation; and under the condition that the fact that fresh air is not supplied is recognized, determining a fresh air discharging mode of the air conditioneraccording to the current air pollution index, so as to reduce the current air pollution index by the fresh air in the fresh air discharging mode. According to the method, by obtaining the current airpollution index, the fresh air discharging mode is determined according to the obtained current air pollution index; and the obtained current air pollution index is reduced at a maximum rate.

The invention relates to the technical field of distilled water preparation, and concretely relates to a production apparatus for preparing distilled water by applying a reverse osmosis desalination technology. The apparatus comprises a raw water tank, an activated carbon filter, a high pressure pump, a distilled water machine and a distilled water tank, and also comprises a 5mum filter, a 1mum filter, a secondary reverse osmosis device and a 0.2mum filter, and the raw water tank, the activated carbon filter, the 5mum filter, the 1mum filter, the high pressure pump, the secondary reverse osmosis device, the distilled water machine and the distilled water tank are sequentially connected. The apparatus can effectively remove pollutants in water and can guarantee the water output of the distilled water machine.

The embodiment of the invention provides a steel structure spraying method with a purification function. The steel structure spraying method with the purification function comprises the steps that workpieces to be sprayed are placed onto spraying stations, a spraying chamber is moved to a preset position corresponding to the first spraying station, and the spraying chamber is sealed by closing a sealing door, so that an airtight space is formed in the spraying chamber; a waste gas outlet of an exhaust unit of the spraying chamber is connected with a waste gas inlet of a purification unit corresponding to the first spraying station, and an air valve is opened; the purification unit and the exhaust unit are started, and an air supply unit is opened; the workpiece to be sprayed is sprayed with paint in the airtight space till spraying of the workpiece to be sprayed is completed, and waste gas generated in the spraying process is delivered into the purification unit from the spraying chamber through the air supply unit and the exhaust unit and exhausted into the atmosphere after being purified through the purification unit; and the spraying chamber is moved to a preset position corresponding to the spraying station next to the first spraying station, and the steps are executed repeatedly till spraying of the workpiece to be sprayed on the spraying station next to the first spraying station is completed.

The invention relates to a distilled water preparation technology field, concretely a production device for preparing distilled water by an ion exchange technology, comprising: a sand filtration cylinder, an activated carbon filter, an ultraviolet sterilization device, a water inlet pump, a distilled water machine and a distilled water storage cylinder, and further comprising a water softener, an ion exchanger, a 5mum fine filter and a 1mum fine filter, wherein the sand filtration cylinder, the water softener, the ion exchanger, the activated carbon filter, the 5mum fine filter, the 1mum fine filter, the ultraviolet sterilization device, the water inlet pump, the distilled water machine and the distilled water storage cylinder are connected in order; and regenerants are 30% hydrochloric acid and a 30% of regenerant diluted from 99% sheet-shaped solid sodium hydroxide with water. The device provided by the invention can effectively remove pollutants in water and guarantees the water yield of the distilled water machine.

An integrated autonomous air purification device for taking in polluted air, carrying it through the inside of the purification device where it passes through a set of filtering elements (1) that trap the dust particles contained in the air; ultraviolet-light lamps (2) that transform NO_X and CO gases in the air into harmless compounds; an activated carbon filter (4) that traps and eliminates the volatile organic compounds and inorganic acidic gases; second filtering elements (5) that carry out a second filtering; and an extraction hood (6) configured to direct the air coming out of the second filtering elements (5) to at least one nozzle (7) that expels the air to the outside of the purification device.

The invention relates to a method for partially replacing water used for fermentation production of tylosin with production wastewater of vitamin B12, belonging to a recycling method. According to themethod, production wastewater of vitamin B12 after pretreatment, adsorption treatment, ceramic membrane filtration treatment and ultrafiltration treatment is directly reused in fermentation production of tylosin as water used for production. For the method, the treated production wastewater of vitamin B12 is directly reused in fermentation production of tylosin, thus the zero discharge of the wastewater of vitamin B12 is realized, the environmental pollution index and environmental protection treatment cost are reduced, a reliable basis is provided for the clean industrial production of vitamin B12, meanwhile, the water used for fermentation production of tylosin also can be reduced, thus the production cost of tylosin is reduced, and a guarantee is provided for the sustainable development of tylosin. In the method, the treatment process of the wastewater of vitamin B12 is simple, and the cost is low.