132 results about "Plastic pollution" patented technology

The invention discloses a method for detecting the plastic content of a marine organism. The method is characterized by including the steps: drying, crushing and digesting marine organism digestive tracts or muscular tissues; performing density gradient centrifugation for digestion solution; performing microscopic examination for micro-plastics in obtained centrifugal liquid by a fluorescence microscope and a Fourier transform infrared microscope; counting the number of the micro-plastics. The method is simple to operate, high in accuracy and application safety and applicable to marine organism micro-plastic pollution detection.

The invention relates to a controllable light-biodegradation nanometer antibiotic plastic and its preparation. The invention comprises waste and old vinyon, modified nanometer TiO2, modified amidon, calcium carbonate and photosensitizer. The invention reduces pollution of waste and old vinyon, avoids resource extravagant and can produce new plastic products with antibiosis and degradability.

The present invention is in-situ fibrillation method of recovering waste thermoplastic plastics. Washed and dried waste thermoplastic engineering plastics and waste thermoplastic common plastics are mixed in certain ratio; the mixture is molten, extruded and stretched in selected technological conditions; and the stretched material strips are forced cooled in cooling water tank and pelletized to obtain the in-situ reinforced and toughened plastic alloy with excellent comprehensive performance. The said production process has low cost and high production efficiency, solves the environmental pollution caused by waste plastics and utilizes the resource of waste plastics in high additional value.

The invention discloses a public water dispenser system and a control method thereof. The public water dispenser system comprises a public water dispenser, a cloud server, a management center and a mobile terminal, wherein the public water dispenser is internally provided with a controller, an information transmitting device and a two-dimensional code reader, and the information transmitting device and the two-dimensional code reader are electrically connected with the controller; the information transmitting device is connected to the cloud server through a wireless network, and the mobile terminal comprises a man-machine interface and a camera; the management center and the mobile terminal are connected to the cloud server through a wireless network. Through the cloud server, the public water dispenser system achieves unified management of public water dispensers, and a user can take water from the public water dispensers; therefore, the public water dispenser system can not only guarantee that the user gets healthy water, but also reduce usage of bottled water, thereby reducing plastic pollution.

The invention belongs to the technical field of corrugated board manufacturing, and in particular relates to an environment-friendly corrugated board. The corrugated board comprises two surface paper layers and a core paper layer arranged between the surface paper layers, wherein the core paper layer mainly comprises corrugated cardboards, supporting posts for supporting the two surface paper layers are arranged between the corrugated cardboards, and a buffer layer is laid outside at least one surface paper layer. According to the corrugated board provided by the invention, the supporting posts are filled in the corrugated cardboards so that the corrugated board has pretty good elasticity and compressive strength; and simultaneously, one buffer layer is arranged outside the surface paper layer so that the corrugated board further has better buffer performance, therefore, foamed plastics or other foamed light-weight materials do not need to be filled when a fragile object is packaged so as to reduce plastic pollution and obtain excellent environmental-friendliness effect, thereby meeting the social requirements of sustainable development today.

The invention provides an ultrahigh-melt-index polylactic acid resin, and a preparation method thereof, and belongs to the field of high molecular material. The preparation method is capable of solving problems in the prior art that polylactic acid resin melt index is low, production is difficult, stability is low, production period is long, and technology is complex. The ultrahigh-melt-index polylactic acid resin comprises, by weight, 100 parts of polylactic acid, 0.01 to 1 part of a catalyst, 0 to 0.5 part of an initiator, and 0.1 to 1 part of an anti-oxidant. The ultrahigh-melt-index polylactic acid resin prepared through reaction extrusion can be widely used in the field of disposable non-woven fabric, the material processing performance of obtained products is ensured, plastic pollution is reduced at the same time, and green environment protection requirements are satisfied.

The invention discloses a method for preparing plastic pipes by recovering and recycling waste plastic woven bags, belonging to methods of waste plastic recovering and recycling. In the invention, the problem that waste plastics pollute the environment is solved. The plastic pipes (per 100 Kg) are prepared from the following components: recovered low density polyethylene resin 58.8 Kg, recovered high density polyethylene resin 39.2 Kg, color master batch 1.5 Kg and ordinary plastic antifoaming agent 0.5 Kg. The plastic pipes are prepared by the step of extrusion forming. The method provided by the invention can be used for producing plastic pipes which are used for water delivery.

The invention provides a method for producing an environmentally-friendly full-degradable liquid mulch film capable of turning into a fertilizer by using coal humic acid. The process comprises the following steps: finely selecting weathered coal, brown coal, peat or rogued turf, removing impurities, and then adding the coal into a crusher and crushing the coal into coal powder with the grain size of 100-150 meshes; adding raw materials into a reaction kettle in a raw material weight ratio of coal powder to potassium hydroxide to potassium carbonate to water equal to (100-120):(0.2-0.7):(0.2-0.6):(200-320), stirring, heating the mixture, standing for settling, and then taking liquid supernatant, thereby acquiring a potassium humate solution; and enabling raw materials to react in a raw material weight ratio of potassium humate solution to boric acid to potassium silicate to cellulose to cross-linking agent to water to propylene glycol monomethyl etheracetate to ammonium nitrate equal to (10-12):(1.8-2.5):(1.2-1.7):(0.15-0.17):(0.25-0.27):(20-30):(0.2-0.3):(0.1-0.2), thereby generating the environmentally-friendly full-degradable liquid mulch film capable of turning into the fertilizer. The process provided by the invention is used for producing the environmentally-friendly full-degradable liquid mulch film by using coal humic acid. After being used, the liquid mulch film is free from being cleared away and is turned into the fertilizer which is absorbed by crops, thereby solving the 'plastic pollution' problem of plastic mulch films.

The invention relates to a treatment method for micro-plastic pollution in a water body. The method is characterized by comprising the following steps: treating the water body carrying micro-plastic by an electric flocculation method; filtering the product in the step a by a stainless steel filter; and coating the film prepared from a porous material on the surface of the water body generated in the step b, and applying 5-20kV voltage to the upper surface of the film for 1-5 minutes. Compared with the prior art, the method provided by the invention has the beneficial effects that in the method, charges are injected to the water body firstly to sedimentate micro-plastic, then, conglobated micro-plastic is filtered by the stainless steel screen, and absorbing residual micro-plastic is absorbed by the porous material finally, wherein the content of micro-plastic in the water body is greatly reduced. The method is economic and practical, and has good application prospect in treatment of environmental water.

The invention relates to a water-resistant poly(vinyl alcohol) composite film and a preparation method thereof. The water-resistant poly(vinyl alcohol) composite film comprises the following components by weight percent: 75-93% of polyacrylic-acid-modified poly(vinyl alcohol) aqueous solution, 1-10% of glycerol, 1-5% of basic catalyst and 5-10% of hydrophobic agent. The preparation method of the water-resistant poly(vinyl alcohol) composite film comprises the following steps: adding the basic catalyst, glycerol and the hydrophobic agent into the polyacrylic-acid-modified poly(vinyl alcohol) aqueous solution, reacting at the temperature of 50-100 DEG C for 1-5 hours, cooling, standing at room temperature for 24-36 hours to remove air bubbles, forming a film by virtue of blending, and drying the film to obtain the water-resistant modified poly(vinyl alcohol) composite film. The water-resistant poly(vinyl alcohol) composite film obtained in the invention has the advantages of good water resistance, easiness for biodegradation and no 'plastic pollution', and can be used in food packaging films and other packaging industries.

The invention discloses a plastic waste film extrusion device based on a waste plastic secondary utilization technology. The plastic waste film extrusion device comprises a device body; an upper partition plate and a lower partition plate are arranged on the upper portion and the lower portion of an inner cavity of the device body correspondingly; the upper partition plate and the lower partitionplate sequentially separate the inner cavity of the device body into a crushing cavity, a mixing cavity and a discharging cavity from top to bottom; a plurality of fixed blades are evenly arranged onthe side wall of an inner cavity of the crushing cavity; a crushing motor is arranged in the center of the top end face of the device body; a rotating shaft is fixedly connected to a motor shaft of the crushing motor and rotatably connected to the device body through a first bearing; and a plurality of movable blades matched with the fixed blades are evenly arranged on the outer circle surface ofthe rotating shaft. The crushing motor drives the rotating shaft to rotate at a high speed, and thus drives the movable blades to rotate at a high speed to crush cleaned plastic, crushed particles meeting the hole diameter of a filter net directly fall into the mixing cavity through first communicating holes, thus the waste plastic is secondarily utilized, plastic pollution is lowered, the resource utilization rate is increased, the raw material cost is lowered, and production benefits are increased.

The invention discloses an intelligent and quick sharing drinking water system. The drinking water system comprises sharing drinking water equipment and a sharing drinking water mobile phone client, the sharing drinking water equipment and the sharing drinking water mobile phone client are connected, a user places an order on the sharing drinking water mobile phone client, the sharing drinking water equipment collects current location information of a user terminal, and obtains the location information of the sharing drinking water equipment which is closest to the current location and is in anormal state of use, after the user selects the nearest sharing drinking water equipment, the user is provided with detailed installation location of the sharing drinking water equipment, the water quality of the sharing drinking water equipment and the supply situation of paper cups, the sharing drinking mobile phone client scans the two-dimensional code on the sharing drinking water equipment,and the sharing drinking water equipment obtains the operation information of sharing drinking water needed by the user. The intelligent and quick sharing drinking water system is convenient to operate, guarantees the supply of safe and healthy drinking water, improves effectively user experience, is economic and healthy, reduces plastic pollution of bottled water bottles, and is green and environmentally friendly.

The invention discloses a high-barrier all-biodegradable BOPLA film and a preparation method thereof, and relates to the technical field of BOPLA films. The film comprises an upper surface layer, a core layer and a lower surface layer, wherein the upper surface layer is an organic polymer anti-sticking layer and is formed by blending the following components in percentage by weight: 92-95% of polylactic acid slices and 5.0-8.0% of organic polymer anti-sticking master batch; the core layer is a quaternary compound polylactic acid layer and is prepared by blending the following components in percentage by weight: 45 to 80 percent of polylactic acid slices, 3 to 30 percent of polycaprolactone, 3 to 30 percent of polypropylene carbonate and 3 to 30 percent of poly 3-hydroxybutyrate; the lowersurface layer is a barrier layer and is prepared by blending the following components in percentage by weight: 65-75% of polylactic acid slices and 25-35% of polyhydroxybutyrate-hydroxyvaleric acid copolyester. The BOPLA film prepared by the method is excellent in physical and mechanical performance indexes, has high barrier property, can be quickly and completely biodegraded in a specific environment, effectively eliminates white pollution and marine plastic pollution, and is green and environment-friendly.

The invention discloses a method for producing anti-caking edible sodium chloride. The method comprises the following steps: (1) injecting steam condensate generated during evaporation into a deep-well salt mine having a depth of more than 300 m to prepare brine with a sodium chloride content of no less than 295 g/l; (2) reducing the content of magnesium ions in the brine to 0.1-0.2 g/l, reducingthe content of calcium ions to 0.1 g/l or below, and performing sedimentation and filtration to obtain refined brine; and (3) conveying the refined brine to an MVR or ME evaporator for concentration and crystallization crystallize, discharging the refined brine out of the evaporator when the solid-liquid volume ratio of salt slurry reaches 40-60%, dehydrating the salt slurry until a water contentof is no more than 2.2% so as to obtain a wet salt, drying the wet salt at 200-250 DEG C to obtain a dry salt, and subjecting the dry salt to cooling and sieving to obtain the finished anti-caking edible sodium chloride. The method for producing edible sodium chloride in the invention effectively prevents the caking of edible sodium chloride without addition of an anti-caking agent, and the finished product has high purity and does not contain micro-plastic pollution.

The invention discloses a kitchen garbage treatment and comprehensive utilization system and a method thereof. The kitchen garbage treatment and comprehensive utilization system comprises a kitchen garbage grinder, a kitchen garbage liquid collecting system, a solid-liquid separator, a solid packing machine, a sterilizer, an oil-water separator, a grease storage tank and a waste water storage tank. Firstly, the kitchen garbage is ground by the grinder; then, kitchen garbage liquid is input to the kitchen garbage liquid collecting system and then pumped into the solid-liquid separator for solid-liquid separation, so as to separate the kitchen garbage liquid into solid kitchen garbage and liquid kitchen garbage; the solid kitchen garbage is packaged and sterilized and then is secondarily processed to be used as a raw material for producing feed or organic fertilizers; and the liquid kitchen garbage is separated into grease and waste water through the oil-water separator, the grease is collected in the grease storage tank for recycling, and the waste water is discharged into a municipal sewage pipe network. The kitchen garbage treatment and comprehensive utilization system and the method thereof in the invention not only can eliminate the cost of packaging bags and pollution thereof but also reduce the transportation amount of kitchen garbage by 70-90%; and at present, the comprehensive recycling of kitchen garbage resources can be realized, and the environmental pollution caused by untimely garbage transportation and the plastic pollution caused by kitchen garbage packaging can further be eliminated.

The invention discloses a weed suppression and insect pest preventing type culture method of cowpea. The method is that the weeds in a cowpea field is treated by suppression after sowing the cowpea; the weeds suppression includes that weed suppression liquid is sprayed to the cowpea field, and then the surface of the cowpea field is covered with a weed suppression mulching film and closed for 4 to 8 days. The method further comprises the steps of 1, preparing the land, namely, selecting the field which is 6 to 8 in pH and is used for planting non-leguminous plants in the past; tilling the soil until reaching the depth of 25 to 35cm 13 to 16 days before sowing the seeds; 2, performing field management, namely, regularly irrigating and topdressing the cowpea field subjected to weed suppression treatment. According to the method, the weed suppression mulching film covering the cowpea filed is manufactured from degradable material, rather than the general synthetic polymer, so that the organic substances in the soil can be increased, the fertilizer effect of the soil is improved, the plastic pollution can be reduced, and the soil structure cannot be damaged.

The invention relates to a degradable polyester and a preparation method thereof, the structural formula of the copolyester is as shown in formula (1), in the formula, R1 is a structural unit of aliphatic dihydric alcohol, R2 is a structural unit of binary acid or ester thereof, x and y are integers, and x: y = 10: 1-1: 10. The invention also relates to a product made of the degradable polyester. The degradable polyester disclosed by the invention can be quickly degraded in both land environment and water environment, so that the product prepared from the degradable polyester can effectively solve the problem of plastic pollution, and particularly can effectively solve the problem of marine plastic pollution.

The invention discloses an electrical equipment transformer with a noise reduction function, which belongs to the technical field of electrical equipment and comprises a transformer body. A protectivecover is fixedly connected to the outer surface of the transformer body, a heat dissipation device is fixedly connected to the right side surface of the inner wall of the protective cover, a filter screen is arranged on the left side surface of the inner wall of the protective cover, and two clamping grooves are formed in each of the upper surface and the lower surface of the filter screen. According to the electrical equipment transformer with a noise reduction function disclosed in the invention, a motor, fan blades, a protective cover, a filter screen, a pull plate and a sliding rod are matched with one another, therefore, the transformer body can be effectively prevented from dust, the use effect of the transformer body is improved, workers can disassemble and maintain the filter screen conveniently, meanwhile, plastic pollution garbage caused by birds or strong wind is prevented from being hung on the transformer body, short circuit of the transformer body is avoided, and therefore normal use of the transformer body is guaranteed.

The invention discloses a method for recycling a photovoltaic module, which starts from the source of the photovoltaic module, and sequentially strips an outer frame, a TPT film layer, an EVA film layer, a battery string, another EVA film layer and glass from the photovoltaic module by detaching the structure of the photovoltaic module, separates the battery string, and completes the recycling ofthe battery string. According to the method for recycling the photovoltaic module, not only solar cells can be recycled, the glass can also be recycled, and meanwhile, soil and environment pollution caused by harmful metal Pb and environment pollution caused by plastic of the TPT film layer and the EVA film layer are avoided.

The invention discloses a processing mould for a bottled product packaging box with an environment-friendly function. The processing mould comprises an upper mould, a plurality of creasing plates comprising outer plates and inner plates, tension springs and a lower mould; the upper mould is annular; a plurality of seams which are uniformly distributed are formed in the lower part of the upper mould, and an annular groove is formed in the circumference of the bottom of the upper mould; a plurality of outer plates and a plurality of inner plates form angular structures; hinge holes are formed inthe positions of angles; the creasing plates are respectively inserted into the the seams; a steel wire penetrates through the hinge holes, surrounds the annular groove and is fixed; the outer platesand the inner plates can rotate along the seams by taking the hinge holes as centres; one end of each tension spring is hinged to the inner plate of the corresponding creasing plate, and the other end of each tension spring is hinged to an inner bump of the upper mould; a cavity is formed in the lower mould; pleated surfaces corresponding to an anti-vibrating pad are formed on the inner wall of the cavity; a pleated edge is formed between two adjacent pleated surfaces; the top surface of the lower mould is conical; the pleated surfaces and the pleated edges extend to the conical top surface;and a mandril of the lower mould and the tension springs are used for demoulding. The bottled product packaging box with the environment-friendly function is made of all paper materials, and has the beneficial effects of environment friendliness and no plastic pollution.

The invention relates to degradable bio-based polyester as well as a preparation method, a degradation method and application thereof. The structural formula of the degradable bio-based polyester is shown in a formula (1) defined in the description. In the formula (1), -O-R1-O- is a structural unit of dihydric alcohol with the carbon atom number of 2-20, -R2- is a structural unit of binary acid with the carbon atom number of 3-20 and a cyclic structure or an ester thereof, x, y and m are all integers, x is equal to 1-10, y is equal to 1-10, and m is equal to 20-100; and the molar ratio to -R2- is 1: 1 to 1: 9. The degradable bio-based polyester disclosed by the invention is excellent in mechanical property and thermal property, not only can be hydrolyzed and hydrolyzed under enzyme catalysis, but also can be degraded under the initiation of amine, and can be applied to plastic products to solve the problem of plastic pollution.

The invention provides a degradation method for polyethylene plastics. The degradation method comprises the following concrete steps: S1, screening and cleaning collected plastic raw materials, and carrying out mechanical damage to reduce the volume of the raw materials; S2, soaking the pretreated raw materials in a soaking solution for 24-72 hours and maintaining a soaking temperature to be 37-60DEG C; S3, washing the soaked raw materials and adding the soaked raw materials into a fermentation tank for fermentation and degradation; and S4, collecting degraded mixed liquid for secondary extraction and recycling. The method of the invention allows the plastics to be conveniently and repeatedly recycled; after the waste plastics are recycled, the recycled plastics can be made into productsagain and can also be used for preparing gasoline and diesel oil; so environmental and social problems brought by plastic pollution can be effectively solved.

The invention discloses an environment-friendly mulching film prepared from, by weight, 2-15 parts of polyvinyl acetate or polyvinyl alcohol or vinyl acetate and 85-98 parts of water. The environment-friendly mulching film replaces a traditional plastic mulching film which is difficult to degrade and recycle, can also achieve the moisture and heat preservation effect on soil, and avoids plastic pollution. In addition, after solidification layers remaining on the surface of sandy soil and soil enter sandy soil and soil, the granular structure and the breathability can be improved, and sandy soil and soil improvement and plant growth are facilitated.

The invention relates to a biodegradable vinasse protein film as well as a preparation method and application thereof, and the vinasse protein film is obtained by processing vinasse protein modified by protein through a film forming technology, the vinasse protein modified by the protein comprises vinasse protein, a plasticizer, a cross-linking agent, a chain extender, a dihydric alcohol oligomer and a water repellent agent. The invention further provides a preparation method and application of the biodegradable vinasse protein film. By modifying the vinasse isolated protein, the vinasse protein not only has the machinability of traditional plastics, but also improves the water resistance and mechanical strength of the vinasse protein film, so that the vinasse protein film better conforms to the characteristics of a film packaging material, is used for replacing a traditional non-degradable plastic film, and helps to solve the pollution problem of the traditional plastics; meanwhile, the application range of the vinasse is also expanded.

The invention discloses a bottled product packaging box with an environment-friendly function. The bottled product packaging box with the environment-friendly function comprises an outer box body; anti-vibrating pads of a bottled product are mounted at the bottom of the outer box body; the bottled product packaging box with the environment-friendly function is characterized in that the top surfaces and the side surfaces of the anti-vibrating pads are formed by overturning and folding circular paper boards; each top surface is a circular plane; and each side surface is a circumferential surfacewhich is formed by connecting a plurality of pleated surfaces. The diameter of each circular plane is 5 to 10 centimeters, and the height of each circular plane is 1 to 1.5 centimeters. An annular paper board ring sleeves the anti-vibrating pads; the annular paper board ring is tightly arranged outside the anti-vibrating pads in the sleeving manner; and the height of the annular paper board ringis close to those of the anti-vibrating pads. The annular paper board ring is bonded with the anti-vibrating pad through glue. A large anti-vibrating pad and a small anti-vibrating pad are arranged; the small anti-vibrating pad is sleeved by the large anti-vibrating pad; the small anti-vibrating pad is bonded with the large anti-vibrating pad through the glue; and the supporting strength of the central part of the large anti-vibrating pad can be improved by the small anti-vibrating pad. The bottled product packaging box with the environment-friendly function has the beneficial effects of simple structure, low cost, environment friendliness and no plastic pollution, and is made of all paper materials.