234 results about "Pollution" patented technology

The invention discloses a sensor for monitoring metal abrasive particles in oil liquid on line. The sensor is a mutual inductance sensor and comprises an exciting coil and an inducting coil, wherein an oil path through which the oil liquid can pass is arranged in the center of a framework made of a magnetic inert material; the exciting coil and the inducting coil are coaxially wound on the framework; the inducing coil is positioned between the exciting coil and the framework; the axial length of the inducting coil is 1/4-1/2 of that of the exciting coil; and the axial center points of the inducting coil and the exciting coil are superposed. The sensor realizes zero compensation and adjustment by adopting a parallel measurement structure and is simple in structure, high in sensitivity, high in linearity and high in interference resistance. The sensor applied to on-line monitoring for the metal abrasive particles in the oil liquid is convenient to operate, high in instantaneity, high in measurement precision and accurate and reliable in monitored result and can be widely applied to military and civil fields and used for monitoring the pollution degree and the abrasion to the oil liquid of lubricating systems of mechanical equipment such as various air planes, naval vessels and automobiles and monitoring and diagnosing faults of the lubricating systems of the mechanical equipment to avoid safety accidents.

The invention discloses a seafood flavoring and process for preparation. At present, seafood such as little fish, low-value fish and shellfish and the like can not be fully exploited and utilized, and the processing rate is lower than 30%, some of the seafood is directly thrown into sea areas as feedingstuff, which causes resource waste and sea-area pollution. The invention utilizes the method of biological enzymolysis to extract biological proteins and to produce various seafood flavorings by mixing the proteins with relative raw materials, which increases the utilization value of little fish, low-value fish and shellfish. The invention has the advantages of short enzymolysis time, high protein extract rate which can reach 60%, yield over 9.9%, moderate reaction condition, and lower production cost, which is suitable for industrial production.

The invention relates to a method, a system and a device for measuring and calculating the external insulation pollution degree of an electric transmission and transformation device, wherein a spot pollutant accumulation measuring device automatically measures the electrical conductivity of pollutants by utilizing a conduction electrode on the surface of a simulation shed, data is transmitted into a central server for measuring and calculating the pollution degree and is converted into the equivalent salt density, the accumulation amount of external insulation pollutants before and after each rainfall can be measured immediately, and the accumulation amount on the external insulation surface pollutants at a measuring site is predicted according to the pollutant accumulation velocity so as to early warn the pollution flashover risk of the device.

The invention discloses a method and a system for modularized combined treatment of high-difficulty organic waste water, and the treatment system comprises: a primary settling tank, an adjusting tank, a reinforced flocculation tank, a precipitation separation tank, a secondary flocculation settling tank, a buffering water tank, a pH adjusting tank, a primary honeycomb microelectrolytic tank, a flocculation settling tank, a secondary honeycomb microelectrolytic tank, an intermediate tank, a heat exchanger, a microwave catalytic oxidation device, a secondary catalytic oxidation pot, and a re-oxidation filter pipe. The treatment method adopts a combined technical scheme of a multistage honeycomb iron carbon microelectrolytic module, a reinforced flocculation module and a microwave electro-catalytic oxidation module; the invention has the characteristics of high applicability, good treatment effect, and unit modularization; the modules can be combined and cascaded freely according to the waste water condition, and thus different waste water treatment effect requirements and waste water quantity requirements are adapted; the operation cost is low; the sludge amount is low; no secondary pollution is caused; and the method is an environment-friendly high-difficulty waste water treatment method.

The invention discloses a method for ecologically cultivating freshwater shrimps in a paddy. The method includes the following steps that the paddy is fertilized and then raked, a communicated cultivating ditch is excavated in the raked paddy, a field ridge is built around the cultivating ditch with excavated soil, the height of the field ridge ranges from 45 cm to 70 cm, and the width of the field ridge ranges from 60 cm to 90 cm; the cultivating ditch is provided with a water inlet and a drainage opening, the water inlet and the drainage opening are respectively provided with a device preventing the freshwater shrimps from escaping, a pond occupying 5%-8% of the area of the whole paddy is excavated on the water inlet, and the depth of the pond ranges from 80 cm to 110 cm; the paddy is sterilized through calcium oxide; seedlings of a rice variety are inserted into the sterilized paddy, wherein the stalks of the seedlings are thick and strong, the seedlings are resistant to lodging, diseases and fertility and grow in deep water, and the yield is high; the freshwater shrimps are fed after the seedlings turn green; bait is thrown during cultivating according to the freshwater shrimps in different growth stages, and meanwhile water keeps clean. The freshwater shrimps cultivated in the method are natural and free of pollution and are pure green food.

The invention provides a vacuum spray freeze-drying device and method. The vacuum spray freeze-drying device is characterized in that the device comprises a closed container used for containing materials in the vacuum spray freeze-drying process, atomizing nozzles, a vacuum system and a temperature regulating jacket; the atomizing nozzles are used for atomizing and dispersing liquid to be freeze-dried into liquid drops and spraying the liquid drops into the container; the vacuum system is used for forming a vacuum environment in the container in the vacuum spray-freezing pelletizing stage to enable part of components in the liquid drops to be vaporized so as to absorb heat, and then the liquid drops are cooled and frozen to form particles, and the vacuum system is also used for carrying out continuous vacuumizing in the drying stage so as to maintain the vacuum environment; the temperature regulating jacket is used for carrying out refrigeration in the vacuum spray-freezing pelletizing stage to prevent part of components in the particles from being molten, and the temperature regulating jacket is also used for providing sublimation heat for part of the components in the particles in the drying stage. In the fast freezing process of the materials, and no refrigerants are adopted to contact with the materials, so that the risk of material pollution is completely eliminated, and sterility of the freeze-drying process is guaranteed.

The invention discloses a young pike granule compound feed and a production method thereof. The compound feed consists of fish meal, bean pulp, rapeseed dregs, peanut meal, corn gluten meal, cottonseed meal, wheat, corn, flour, rice bran, bran, mixed oil (mixed by fish oil, soya-bean oil and lard oil according to a ratio of 1:1:1), monocalcium phosphate, coated lysine, coated methionine, a rhubarb anthraquinone extract, 35 percent of vitamin C phosphate, a composite enzymic preparation, a potassium sorbate preservative, salt and premix. The feed comprises the following steps: crushing, uniformly stirring, mixing, modulating, granulating and cooling to prepare the young pike granule compound feed. The young pike granule compound feed prepared by the method is comprehensive and balanced in nutrition and high in feed utilization rate, the stress resistance and disease resistance of the fish body can be improved, the water body pollution is reduced, and the rapid and healthy fish growth is promoted.

The invention discloses a method for constructing a multi-stage subsurface flow constructed wetland system, and the method comprises the following steps: (1) selecting a littoral zone with a slope as a wetland pond or digging and backfilling to get a wetland pond with a slope; (2) grading and filling a matrix, namely designing stages according to the pollution load and the height difference of slope, and filling the matrix in each stage of the wetland; (3) arranging drainage holes, water outlet holes and water inlet holes; (4) planting plants, namely planting the plants on each stage of the wetland respectively. The method disclosed by the invention has the following beneficial effects: (1) the system constructed by the method has no influence on the coastal zone structure of a landscape water body. (2) the system constructed by the method has a better purification effect on water flowing into rivers and water contaminated by the landscape water body, especially has an obvious purification effect on pollutants such as SS (Stainless Steel), oil and COD (Chemical Oxygen Demand) and has a good removal effect on heavy metals, TN and TP. (3) the system constructed by the present invention can integrate the purification function with the greening of coastal zones, so that the diversity of landscape is enriched and the overall landscape effect is improved.

The invention discloses a method for preparing a 2-iodine amyl -2-ene-1,4-diketone derivative by adopting visible light catalysis. The method comprises the steps of adding allene, perfluorobutyl iodide, an additive and a photocatalyst as shown in a formula (I) to an organic solvent at the molar ratio of 1:(1-2):(1-2):(0.005-0.1), stirring under the conditions of an oxygen atmosphere, visible light illumination, room temperature and ordinary pressure for 10-20h, carrying out post-treatment on a reaction liquid to obtain a 2-iodine amyl -2-ene-1,4-diketone derivative as shown in a formula (II), wherein the additive is NaI, NH4I or KI; the organic solvent is ethanol, dichloromethane, benzene, methylbenzene, tetrahydrofuran or acetonitrile; the photocatalyst is selected from one of the following components: Ir(ppy)3, Eosin Y, Rose Bengal, [Ir(dF-CF3-ppy)2(dtbbpy)]PF6, [Ir(ppy)2(tbbpy)]PF6, Ru(bpy)3(BF4)2. The method is mild in reaction condition, simple in operation, high in selectivity and good in yield; a substituent group can be expanded; and visible light catalysis is adopted, so that the method has the characteristics of being free of pollution and environment-friendly. The formulas are as shown in the specification.

The invention relates to the technical field of photocatalysis, and specifically relates to a graphene-based gamma-FeO2O3 composite material photocatalyst, and a preparation method and use thereof. According to the graphene-based gamma-FeO2O3 composite material photocatalyst, gamma-Fe2O3 particles are attached to the surface of graphene, size distribution of the graphene is 1-50 mu m and the size distribution of the gamma-Fe2O3 particles is 20-500nm. The preparation method mainly comprises the following steps: preparation of graphite oxide; preparation of a graphite oxide iron sulfate hydrate intercalating matter; and preparation of the graphene-based gamma-FeO2O3 composite material photocatalyst. The graphene-based gamma-FeO2O3 composite material photocatalyst prepared by the preparation method disclosed by the invention has high carrier transmission rate, large specific surface area and low energy gap, so that the photocatalyst has extremely high activity of photocatalytic degradation of organic matters. The photocatalytic activity of the photocatalyst disclosed by the invention is over 86% higher than that of pure gamma-FeO2O3 particles. The photocatalyst has good circular stability, can be repeatedly used for many times, and does not cause secondary pollution in the photocatalytic degradation process.

The invention discloses a cleaning fluid applied for automatic biochemical analyzers, comprising: at least one anion surface active agent, at least one nonionic surface active agent, an alkali metal hydroxide, an alkali metal citrate and a buffer agent for stabilizing pH value above 13.0. The cleaning fluid has low protein residual rate, low fatty material residual rate, good in-batch repeatability, low cross pollution and low reactant deposition rate in clinical application after cleaning. And the cleaning fluid will not affect the test result of biochemical analyzers, and has not corrosion on the liquid circuit system and reaction cup of analyzers. All components of the cleaning fluid can be degraded biologically, to avoid potential environment pollution and meet environment protection requirement.

The invention relates to a mercury-containing fumes emission continuous monitoring system and a monitoring method thereof. The monitoring system comprises a sampling device, a reactor, a gas and water separating device, and a mercury concentration measuring device which are sequentially connected through a pipeline; the reactor is connected with a first container containing a divalent mercury adsorption solution through a first peristaltic pump, and is also connected with a second container containing a divalent mercury reduction solution through a second peristaltic pump; and the sampling device, the first peristaltic pump, the second peristaltic pump and the mercury measuring device are separately electrically connected with a control circuit. The monitoring method comprises: firstly, the divalent mercury adsorption solution is pumped into the reactor to adsorb the divalent mercury in the fumes, and the mercury concentration measuring device is used to measure the concentration of zero valent mercury in the fumes; secondly, the divalent mercury reduction solution is pumped into the reactor to reduce the divalent mercury to be zero valent mercury, and the concentration obtained by the mercury measuring device at the same time is the concentration of the mercury in the fumes. The monitoring system of the invention is simple in structure, can prevent environment pollution, is highly reliable, achieves on-line automatic continuous monitoring, and improves operation efficiency and measurement accuracy.

The invention relates to a technology for extracting zinc, lead and silver step by step by processing zinc-leached residues by a full wet process, and belongs to the technical field of zinc-leached residue recycle. The technology comprises the following steps of: preparing sulfuric acid into an appropriate concentration, and performing two-stage acid leaching in an appropriate liquid-solid ratio and at a high temperature to obtain slurry; filtering and separating the slurry to obtain lead-silver residues and a zinc-containing solution; oxidizing, neutralizing and deironing the zinc-containing solution, and depositing zinc by using sodium sulphide; and eluting the lead-silver residues, blending with caustic lye at an appropriate concentration to obtain slurry at a certain concentration, reacting at a certain temperature and in a certain solid-liquid ratio, and filtering and separating to obtain a filter cake and a filtrate, wherein the filtrate is directly added with sodium sulphide for lead deposition and the filter cake returns to a silver cyaniding leaching process. The technology is short in process, simple in operation, low in cost and mild and loose in reaction conditions; an acid solution and an alkali solution at high concentrations are not required; requirements on equipment are low; the extraction rate of metal is higher than that in the conventional method; no additional waste solid, waste liquid and waste gas are discharged; the recycle of the eluate and the filtrate is realized; and environment pollution is avoided from the source.

The invention discloses a water pollution online analysis and quick source tracing method used for strengthening supervision of wastewater discharged by enterprises in the industries of printing and dyeing, coking, electroplating, electronic manufacturing, papermaking, pharmacy, metal manufacturing and the like. According to the method, a multi-channel laser Raman online analysis and multi-channelelectrochemical online analysis combined technology is adopted to perform online analysis and monitoring on multiple types of pollutants possibly occurring in a monitored water area, and the online analyzed and monitored water pollution data is analyzed automatically by utilizing a pre-constructed pollution source database, source tracing software and a data analysis platform so as to realize online water pollution source tracing. By adopting measures such as multiple test channels, a wide-electrochemical potential window three-dimensional bismuth film alloy electrode, a modulation asymmetricsquare wave test method, a surface enhanced Raman accessory and the like, the test rate, the detection capability and the monitoring resolution capability of online analyzing and testing various types of pollutants are ensured.

The invention discloses a spinning dust collecting device for a spinner. The spinning dust collecting device comprises a supporting frame, a first electric push rod, a dust removal pipe, an induced draft fan, a movable box, a second electric push rod, a push block, an infrared receiver, a first filter net, a second filter net, an infrared transmitter, a high-pressure nozzle, a timer and a PLC. Supporting legs are fixedly welded to the periphery of the bottom of the supporting frame, and the bottoms of the supporting legs on the two adjacent sides are connected through a fixing plate, a plurality of fixing bolt holes are formed in the fixing plate, an electric control box is fixedly arranged on the supporting legs through bolts, a control board is installed on the electric control box, the timer and the PLC are installed inside the electric control box, the inner walls of the two corresponding sides of the supporting frame are connected through a sliding rail, and a servo motor is fixedly arranged on one side of the top of the sliding rail. The spinning dust collecting device is convenient to use, easy to operate and capable of removing dust conveniently, improving the dust removal effect and avoiding secondary pollution.

The invention provides a selenium-enriched mushroom grass culture medium which is prepared by taking selenium-enriched mushroom grass, wood chips, wheat bran, saccharose, gypsum, monopotassium phosphate and magnesium sulfate as the main raw materials. The invention further provides a method for producing shiitake mushrooms through the selenium-enriched mushroom grass culture medium. Accordingly, a traditional shiitake mushroom producing method is changed, a selenium-enriched mushroom grass technology is utilized in shiitake mushroom stick production, therefore, the producing method of selenium-enriched products is changed, the nutritional value of the shiitake mushrooms is increased, the production efficiency is improved, the shiitake mushroom yield and biotransformation rate are high, and meanwhile the production cost is greatly lowered; in addition, the producing method is simple in technology, the produced shiitake mushrooms are high in content of selenium-enriched elements, the product is free of pollution, and the food safety problem is solved from the source.

The invention relates to a stichopus japonicus powder feed and a processing method thereof and belongs to the technical field of feeds and processing methods thereof. The stichopus japonicus powder feed is characterized by comprising the following ingredients by weight percent: 30-50% of degummed kelp dry powder, 10-20% of sargassum thunbergii dry powder, 15-25% of gulfweed dry powder, 8-13% of perforated sea lettuce dry powder, 5-12% of fish powder, 4-8% of yeast powder and 1-3% of complex vitamin. The processing flow comprises the following steps: collecting raw materials, degumming kelp, drying the raw materials, mixing the raw materials, performing coarse crushing, mixing with the fish powder and stirring, performing superfine crushing and packaging. Nutritional ingredients in the stichopus japonicus powder feed are good in stability, the growth speed and cultivation survival rate of stichopus japonicus can be effectively improved, the growth speed obtained by adopting the stichopus japonicus powder feed is faster than that obtained by adopting other types of the feed by 1.5-2.0 times, the survival rate is high, the weight-increasing rate is fast, and the production efficiencyof cultivation of the stichopus japonicus is greatly improved. Simultaneously, the pollution on a cultivation water body is reduced, and the growth speed of the stichopus japonicus is improved.

The invention discloses a pollution-free paddy rice planting method comprising following steps: seed pretreatment: paddy rice seeds are successively subjected to soaking in a soak solution, voltage application in a corona field and mixing to obtain paddy rice seeds for sowing; 2. land preparation: pig dung layer, three different bio-fertilizers and marsh manure layer are successively laminated and embedded in multiple trenches of soil and fermentation on-site is performed to obtain fertile seedling growing bed; 3. seedling growing and self-made nutrient soil: seedling growing holes of a seedling growing tray is filled with the nutrient soil, the paddy rice seeds for sowing are spread in the seedling growing holes, watering and fertilization management are performed to obtain seedlings to be transplanted; 4. transplanting. According to the method of the invention, through pretreatment of paddy rice seeds and land preparation of rice seedling beds, fertile seedling growing beds which can prevent insect disease are obtained to increase the germination rate and seedling emergency rate of paddy rice, improve the quality of rice seedlings and make the seedlings robust and root well developed; the seedlings are provided with strong insect disease-resistant ability; high quality and pollution-free paddy rice is obtained.

The present invention discloses a composite microbial deodorant and a preparation method thereof. The composite microbial deodorant contains Rhodop seudanonas palustris, Candida utilis, Lactobacillus acidophilus, Streptomyces griseus and Bacillus subtilis, wherein the Rhodop seudanonas palustris, the Candida utilis, and the Lactobacillus acidophilus are subjected to mixed fermentation in a light-transmitting temperature-controllable fermentation tank, the Streptomyces griseus and the Bacillus subtilis are subjected to mixed fermentation in an aerating sterile air temperature-controlled fermentation tank, and the two fermented bacterial agents are mixed and added with essence, citric acid and glacial acetic acid to prepare the composite microbial deodorant. The composite microbial deodorant of the present invention has characteristics of simple preparation process and no secondary pollution, and provides good odor removing effects for toilets, farms and other occasions.

The invention discloses a rapid and high efficiency chlorogenic acid and galuteolin in honeysuckle flower extraction method and a HPLC quantitative analysis method, and which comprise the following steps: superhigh pressure extraction and quantitative analysis. Superhigh pressure extraction comprises the steps as follows: firstly crushing dried honeysuckle flower and filtering by a sieve with 60-80 meshes, adding water or ethanol, methanol and n butanol organic solvent into the honeysuckle flower powder according to 1:10-1:100 solid liquid ratio, mixing and sealing, immersing at normal temperature, placing the mixture into a high pressure container, leaching with pressure at 20-60 DEG C. for 1-5 min, relieving pressure, carrying out centrifugation of extract product and obtaining the honeysuckle flower extract. Quantitative analysis: after centrifugation, diluting 2ml of the obtained supernatant to 10 ml with distilled water in a volumetric flask, refrigerating for standby. The chlorogenic acid and galuteolin in honeysuckle flower are extracted by a superhigh pressure technology and are carried out by a content determination, and the invention has the characteristics of high recovery rate, short extraction time, small solvent amount, simple operation, accuracy, good repeatability, no pollution, safety, low energy consumption, etc.

The invention relates to the field of organic high-molecular compounds. In order to solve the problem of deficiency in long residual action and environment friendliness in the existing oil-based fluorine-containing low-surface-energy anti-doodling paint, the invention provides a water-based anti-doodling paint and a preparation method thereof. The preparation method comprises the following steps: adding a pigment, a filler and a dispersing agent into a toning cylinder, mixing, adding into a grinder, and grinding until the fineness is less than 20 mu m to obtain a color paste; and adding deionized water, the color paste, a fluorine-silicon-modified polyurethane core-shell emulsion, a preservative and a mildew preventive into a dispersion cylinder, mixing, sequentially adding a film forming assistant, a defoaming agent a thickener, mixing, and discharging to obtain the water-based anti-doodling paint. The film formed by the paint has the characteristics of excellent weather resistance, excellent ultraviolet resistance, excellent wear resistance, low surface energy, excellent pollution resistance, excellent doodling resistance, low VOC (volatile organic compound) emission, environment friendliness and no toxicity.

The invention discloses a microbial dust suppressant and its application. The microbial dust suppressant consists of 2.0wt%-3.0wt% of microbial powder, 29.0wt%-30.0wt% of calcium source and 67.0wt%-69.0wt% of ionized water Composition, described microorganism is bacillus lysinus, and described calcium source is calcium chloride. The microbial dust suppressant is evenly sprayed on the sandy soil surface under the condition of the ambient temperature of 2°C≤T≤20°C, uses microorganisms to capture carbon dioxide in the environment and converts it into carbonate, and reacts with an external calcium source to form a gelling effect The carbonate minerals have successfully consolidated loose sand particles into a whole and have certain mechanical properties. Compared with traditional methods, this method has significant dust suppression effect, low cost, convenient construction, no secondary pollution, and good ecological compatibility.

The invention provides a ceramic floor tile with diatom mud and a method for manufacturing the ceramic floor tile. The ceramic floor tile comprises a base layer, a surface layer and an adhesion layer. The adhesion layer is arranged between the base layer and the surface layer, and the base layer is made of the diatom mud, feldspar, kaolin, quartz, clay, porcelain clay, moire stone, marble, broken iron, polystyrene and polyacrylate; the surface layer is made of the diatom mud, Kunshan stone, carborundum disc stone, colorants, pebble, glass cloth, plastic particles, polyurethane, ethylene-ethylic acid ethylene copolymers, silicon dioxide and aluminum oxide. The ceramic floor tile and the method have the advantages that the ceramic floor tile is made of nontoxic and pollution-free raw materials, and the diatom mud which is a main material is easy to obtain, is natural and pollution-free and has diversified sterilization, disinfection and waterproof merits; the ceramic floor tile is made of the easily available materials, processing and manufacturing processes are simple, and the ceramic floor tile manufactured by the aid of the method is high in smoothness and quality.