42results about How to "Efficient settlement" patented technology

The invention discloses a wetting agent capable of inhibiting dust flying. The wetting agent comprises 0.05-0.25% of sodium carboxymethyl cellulose, 0.3-1.2% of polyacrylamide, 0.2-0.4% of polyoxyethylene fatty alcohol sodium sulfate, 0.1-0.5% of sodium alpha-alkenylsulfonate, 0.3-1% of corn starch grafted sodium acrylate, 0.08-0.13% of silicone resin polyether emulsion, 0.1-0.5% of dodecyldimethylbetaine, 0.1-0.3% of carboxymethyl chitosan, 0.05-0.1% of dioctyl sodium sulphosuccinate, 0.4-0.6% of ethanediol, 0.2-0.4% of calcium chloride and the balance of water. The sprayed fog drops can quickly capture and wrap the dust particles, thereby increasing the particle settling speed. The sprayed fog drops can be covered on the dust on the coal rock surface and ground surface to prevent secondary flying dust, thereby enhancing the dust removal efficiency.

The invention relates to a method for pre-treating alkali PTA wastewater, in particular to a method for pre-treating high-concentration PTA wastewater by using a combined flocculating agent. The method sequentially comprises the following steps of: adding coagulant aid in an amount which is 0.07 to 0.12 percent of the mass of the treated wastewater into the PTA wastewater at the temperature of about 45 DEG C; adjusting the PTA wastewater by using acid till the pH value is between 3 and 3.5; adding polyacrylamide flocculating agent in an amount which is 0.0001 to 0.0003 percent of the mass of the treated wastewater into the wastewater; and stirring the wastewater, then performing gravity settling, and treating the high-concentration PTA wastewater after the retention time of 0.5 to 1.5 hours. The method has the characteristics of low treatment cost, high settling velocity, compact settling layers, capability of reclaiming a large amount of TA solid, simple operation conditions and the like.

The invention discloses a high-efficiency dust collection device for coal mining. The high-efficiency dust collection device for coal mining comprises a shell body, and dedusting water is stored in the shell body. A fixed bracket is arranged at the bottom of the shell body, and the shell body is fixed on the fixed bracket. An air suction dryer is arranged at the top of the shell body, and a wind suction hood is arranged at the front end of the air suction dryer and a draught fan is arranged in the air suction dryer. The after end of the air suction dryer is communicated with the bottom of theshell body by a conduit pipe. A gas density sensor is arranged in the top end of the shell body and a wind pipe is arranged at the front side of the inner of the shell body top. By the high-efficiencydust collection device for coal mining, the structure is ingenious and reasonably arranged, specifically that firstly, the coal dust in the raise dust is wiped off effectively and the air in work place is cleaned; secondarily, the gas density in work place can be tested and reduced, and the security is improved; thirdly, efficient filtration and sedimentation of coal dust is achieved and the coaldust is convenient to discharge; fourthly, an actuating mechanism in an engine room is ingeniously arranged and the structure is compact and simple.

The invention discloses a high-flux magnetic solid-liquid separation device and a method thereof for purifying a magnetic particulate matter in wastewater. The device comprises an excitation system and a centrifugal sorting system, wherein a main body of the centrifugal sorting system is in the form of an inverted circular truncated cone and further has a sorting cavity which is of a double-layer structure of an inner cavity and an outer cavity; the top of the sorting cavity is provided with a material feeding opening and a purified water outlet; the bottom of the sorting cavity is provided with a magnetic material outlet and a driving device; the inner surface of the side wall of the inner cavity of the sorting cavity is provided with a magnetic medium; the excitation system comprises at least two groups of exciters; the exciters are uniformly distributed on the side surface of the exterior of the outer cavity of the sorting cavity. According to the device, a high-gradient magnetic field, a centrifugal force field and a gravitational field are organically combined; the device is applied to the purification of the magnetic particulate matter in the wastewater; the quick and high-efficiency separation of a superfine solid suspended matter can be realized; further, a method for treating the wastewater by utilizing the device is simple in process and convenient to operate; the industrialized production is realized.

The invention provides a negative ion spraying dust removal device. A lamp disk is mounted on a lamp pole; a roller group is also arranged on the lamp pole and is arranged above the lamp disk; the lamp disk is suspended through a steel cable; two circles of striker spray heads are arranged between the upper part of the lamp disk and the lower part of the lamp disk and are connected with a high-pressure fog making main unit through fog making pipelines; three circles of insulation electrodes are arranged at the front ends of the striker sprayers; a PM2.5 laser detection module is connected with a relay through a signal amplifier; a booster and the high-pressure fog making main unit are connected with a power supply through the relay; the high-pressure fog making main unit is also connected to the power supply through a temperature and humidity sensor; all lighting lamps are mounted on the lower part of the lamp disk and are connected to the power supply through a light control sensor. The negative ion spraying dust removal device can be used for square lighting and can also adsorb dust in air; meanwhile, a large amount of generated negative ions can kill air germs and decompose harmful gas; the negative ion spraying dust removal device occupies a small space, is high in space utilization rate and has an extremely large popularization value.

The invention provides an electrostatic spraying dust remover comprising a charged spraying device, a water tank, a bottom frame and a dust removing tower. A dust-containing waste gas inlet is formed in the top of the dust removing tower; a charged spraying mounting opening is formed in one side of the upper portion of the dust removing tower, and the bottom of the dust removing tower communicates with the top of the water tank. The charged spraying device comprises a charged shell, a double-fluid pipe, a spraying head, a gas inlet pipe, a water inlet pipe, a water pump and an air compressor. One end of the double-fluid pipe is connected with the gas inlet pipe and the water inlet pipe, and the other end of the double-fluid pipe penetrates through the charged shell to be connected with the spraying head. The spraying head is arranged at the throat of the dust removing tower. The charged shell comprises an insulating ceramic pipe and an electrostatic induction pipe. The electrostatic induction pipe is connected and fixed to the two axial ends of the insulating ceramic pipe and connected with a discharging device. Pollution particles with the small particle sizes, and acid mist electricity in dust-containing waste gas can be efficiently adsorbed and settled through charged double-fluid spray, practicability is higher, and the electrostatic spraying dust remover is easy to erect, cost in cost and wider in applicability.

The invention discloses a method for preparing protein powder from mycelium protein liquid. The method comprises the following steps of (1) firstly, uniformly mixing mycelium protein liquid generatedin each workshop; (2) adding an inorganic flocculant or a low-molecule organic flocculant to the mycelium protein liquid; (3) heating the mycelium protein mixed liquid uniformly mixed in the step (2)to 50-100 DEG C; (4) adding a high molecular organic flocculant to the mixed liquid obtained in the step (3), the performing solid-liquid separation through solid-liquid separation equipment to obtainclear liquid and mycelium concentration dregs; and (5) mixing the protein dregs with corn steep liquid in a certain proportion, then performing drying and performing crushing to obtain the protein powder. The method for preparing the protein powder from mycelium protein liquid has the advantages of being low in energy consumption, high in recovery rate of mycelium protein and the like.

The invention provides a settling separation device. The settling separation device comprises a through groove body, wherein the upper portion of the groove body is a cylindrical body, the lower portion of the groove body is a conical cylinder, a top beam is arranged at the top end of the groove body, a solid discharging hole is arranged at the lower end of the conical cylinder of the groove body, a charging hole and an overflow hole are arranged on the side wall of the cylindrical body of the groove body respectively, a through feeding drum is arranged coaxially inside the groove body, the upper portion of the feeding drum is a frustum, the lower portion of the feeding drum is a cylindrical body, the upper end of the feeding drum is fixed with the top beam of the groove body, the height of the feeding drum is not higher than that of the cylindrical body of the groove body, the charging hole is communicated with the frustum at the upper end of the feeding drum through a charging pipe, two layers of horizontal partition boards are arranged between the cylindrical body of the feeding drum and the cylindrical body of the groove body, inner ends of horizontal partition boards and outer ends of horizontal partition boards are fixed on the cylindrical body of the feeding drum and the cylindrical body of the groove body respectively, a settling pipe which forms a settling channel penetrates through the two layers of partition boards, and an umbrella-shaped device is coaxially arranged inside the feeding drum. The device eliminates a plurality of defects of the prior art, the rapid and effective settling is achieved, and simultaneously, the occupied area is reduced.

The invention discloses an atmospheric dust-haze treatment material including the components of bio-extraction sugar, bio-extraction acid, a biosurfactant, an osmosis auxiliary and a bactericide. Theaction principle is that after the formation of dust-haze, the composition of dust-haze is sprayed with the atmospheric dust-haze treatment material to form fog drops and rapidly absorb dust-haze andin the process of sedimentation, the chemical package and coagulation and sedimentation effect are performed between the dust-haze removal components in the fog drops (particles) and the dust and haze, thus forming a stable and safe combined substance. The material mainly includes plant extractions so that the dust-haze is free of causing secondary pollution of soil and water after settling to theground. The atmospheric dust-haze treatment material achieves high-effective treatment on the atmospheric dust-haze at high speed and low cost, thus solving problems due to severe dust-haze and improving people life and social environment.

The invention discloses a method for in-situ precipitation and separation of arsenic in copper electrolyte. In a copper electrolytic refining process, the current density is controlled to be 400-600 A / m2; reaction is performed adopting a way that liquid is fed from bottom and discharged from the top or the liquid is fed between parallel polar plates; and moreover, BiAsO4 seed crystals are added after the reaction is performed for at least 4 hours so as to from in-situ induction of arsenic-containing crystalline precipitates in the copper electrolyte. according to the method disclosed by the invention, by utilizing the characteristic that substances containing arsenic, stibium and bismuth in the copper electrolyte can easily react with one another and on the premise of guaranteeing normal running of an electrolysis process, the formation and growth of arsenic-containing crystalline precipitates are induced by a synergistic effect of relevant parameters (current density, circulation wayof the electrolyte, the distance between an anode plate and an electrolyte inlet, and the concentration of the seed crystal) during electrolytic refining, thereby realizing high-efficiency sedimentation of the precipitates in the electrolyte and in-situ separation between the precipitates and muddy substances such as anode mud.

The embodiment of the invention discloses a water quality detection device which comprises a detection cylinder detachably communicated with a water inlet pipe, a detection box for separating and detecting water impurities, a water quality probe and an impurity probe, one end, far away from the water inlet pipe, of the detection cylinder is communicated with a drainage pipe; and astirring unit is arranged in the detection cylinder; the water quality probe is arranged in the detection cylinder; the detection box comprises a box body and a plurality of V-shaped plates; an inlet hole and an outlet hole are respectively formed in two sides of the box body; the drainage pipe horizontally and transversely penetrates through the box body; the inlet hole is communicated with the drainage pipe through a transition pipe; a plurality of V-shaped plates are stacked, the V-shaped plates are parallel to the drainage pipe, openings of the V-shaped plates face downwards, water flows through the V-shaped plates, and gaps between the edges of the two sides of every two adjacent V-shaped plates form impurity outlets; the impurity probe is arranged at the bottom of the box body and located below the opening. According to the water quality detection device disclosed by the embodiment of the invention, detection on water quality and impurities in water can be efficiently completed.

The invention provides a spraying linkage integrated dust falling system used for a coal mine underground fully mechanized coal mining face. A power supply starting valve is opened, so that a coal cutter starts coal cutting work; a signal integrator I controls a solenoid valve I, a variable-frequency power supply switch, a water pressure sensor and a flow sensor to be started; the signal integrator I adjusts the water volume and the pressure required by a coal cutter internal-external spraying device by adjusting the variable-frequency power supply switch, so that good water mist is formed bythe coal cutter internal-external spraying device to efficiently conduct dust falling; and a coal cutter coal cutting signal is transmitted to a signal integrator II, under the condition of simultaneously having the coal cutter coal cutting signal and a hydraulic sensor signal, five spraying devices controlled by a solenoid valve II are started simultaneously, the solenoid valve I is automaticallyclosed after being opened for 2 min, meanwhile, the solenoid valve II next to the wind feeding side is started to conduct all-direction water mist covering on produced dust. The spraying linkage integrated dust falling system can effectively conduct real-time water mist covering on sources producing the dust, dust drifting caused by not-timely spraying is avoided, and meanwhile, the water mist utilization rate is increased.

The invention discloses a technological method for recycling germanium mud through reaction sedimentation. The method comprises the following steps: collecting germanium-containing waste liquid generated in a germanium machining process into a collecting tank to be stored, then placing the germanium-containing waste liquid in the collecting tank into a reaction sedimentation tank through a pipeline, adding alkali liquor into the reaction sedimentation tank to adjust the PH value of the waste liquid, then adding a coagulant and a flocculating agent into the reaction sedimentation tank, stirringthe mixture to be uniform through a stirrer, and carrying out reaction sedimentation; and after reaction sedimentation is completed, pumping out supernatant liquid in the reaction sedimentation tankthrough a water pump, and delivering lower-layer turbid liquid in the reaction sedimentation tank to a filter press through a centrifugal pump to be subjected to filter pressing so as to obtain the germanium mud. According to the technological method, rapid sedimentation of the germanium mud is achieved through the method of adding chemical agents, the germanium mud is converted into high-grade germanium powder through filter pressing, baking and grinding, efficient recycling of the germanium mud is achieved, and the problem that an existing low-concentration germanium-containing waste liquidgermanium mud recycling treatment method is low in recycling efficiency and recycling rate is solved.

The invention discloses a dust smoke removal device for a round baler. The dust smoke removal device comprises a baling tank, a seal chamber, baling rollers, a dust-collection filter tank, a dedustingbox, a dust guide pipe, a water pump, a water tank, a water guide pipe, a sewage pipe, a motor, a dust suction head, fan blades, a rotating shaft, a partition plate, a clear water chamber, a sewage chamber, a filter screen, spraying pipes, spraying heads, a layering plate and an exhaust pipe. The seal chamber is connectedly mounted on one side of the baling tank, the baling rollers are mounted inthe baling tank and the seal chamber, and the dust-collection filter tank is mounted on one side, away from the seal chamber, of the inner wall of the baling tank. The motor is mounted in the dust-collection filter tank. The dust smoke removal device for the round baler has advantages that dust in the baling tank is sucked into the dedusting box through the fan blades, dedusting is realized through clear water spraying, structural simplicity and great dedusting effects are realized, and a baling operating environment is improved; dedusting water is filtered and recycled, so that water resources can be saved; due to gathering of dust sediment, convenience in clearing is achieved.

The invention provides a spraying linkage integrated dust falling system used for a coal mine underground fully mechanized coal mining face. A power supply starting valve is opened, so that a coal cutter starts coal cutting work; a signal integrator I controls a solenoid valve I, a variable-frequency power supply switch, a water pressure sensor and a flow sensor to be started; the signal integrator I adjusts the water volume and the pressure required by a coal cutter internal-external spraying device by adjusting the variable-frequency power supply switch, so that good water mist is formed bythe coal cutter internal-external spraying device to efficiently conduct dust falling; and a coal cutter coal cutting signal is transmitted to a signal integrator II, under the condition of simultaneously having the coal cutter coal cutting signal and a hydraulic sensor signal, five spraying devices controlled by a solenoid valve II are started simultaneously, the solenoid valve I is automaticallyclosed after being opened for 2 min, meanwhile, the solenoid valve II next to the wind feeding side is started to conduct all-direction water mist covering on produced dust. The spraying linkage integrated dust falling system can effectively conduct real-time water mist covering on sources producing the dust, dust drifting caused by not-timely spraying is avoided, and meanwhile, the water mist utilization rate is increased.

The invention relates to a binary chelating polymer molecular brush cationic dye trapping agent and a preparation method and application thereof. The water-soluble binary chelating polymer molecular brush cationic dye trapping agent is characterized by being prepared from polymer main chain such as polyhydroxyethyl acrylamide, anionic macromolecule side chain precursor polymer polymethylacrylic acid tert-butyl ester containing carboxyl at tail end, functional macromolecule side chain precursor polymer poly-N-vinyl amino formamide containing carboxyl, a dimethylformamide solvent, a catalyst (N-hydroxy succinimide), 1-ethyl-3-(3-dimethylamino propyl)carbodiimide iodomethane, potassium hydroxide, and ethylene glycol diethyl ether diamine tetraacetic dianhydride; the water-soluble binary chelating polymer molecular brush cationic dye trapping agent is used for treating the drained dye wastewater or art coating wastewater in the dye synthesizing or dyeing and finishing process. The binary chelating polymer molecular brush cationic dye trapping agent has the advantages that the trapping ability is strong, the precipitation speed is quick, the complex heavy metal ion can be treated, the cationic dye molecules and the complex heavy metal ions can be trapped in several seconds, and can be quickly grown into large precipitation particles, the purpose of separating dyes is realized, the operation is simple and convenient, the treatment cost is low, the suitability is strong, and the like.

The invention discloses a preparation method and an application method of a silicon dioxide cluster-based novel settling agent. Silicon dioxide clusters serve as settling agent main bodies, and metalions and the silicon dioxide clusters are combined by utilizing the strong interaction between the silicon dioxide clusters and the metal ions, so that a metal ion modified settling agent is obtained,and the content of metal ion residues such as aluminum ions in the treated water body can be reduced; the settling agent provided by the invention can be selectively combined with blue-green algae, so the influence on other aquatic organisms is greatly reduced; the density of the final settling material can be adjusted by adjusting the polymerization degree or grain size of the silicon dioxide clusters in the settling agent and the metal content, the prepared settling material can float on the water surface and also can sink into the water bottom, and different salvage treatment requirementscan be met; and the settling agent provided by the invention is faintly acidic, so the living environment of the blue-green algae can be broken by a mode of reducing the pH value of the water body while the blue-green algae are settled, and the growth of the blue-green algae can be inhibited.

The invention relates to a water-soluble binary chelic polymer molecular brush anionic dye catcher as well as a preparation method and application thereof. The water-soluble binary chelic polymer molecular brush anionic dye catcher is characterized by being prepared from polyhydroxyethyl acrylamide as a main chain of a polymer, carboxyl-containing poly(methacryloyloxyethyltrimethyl ammonium chloride) at the tail end of a cationic polymer side chain precursor polymer, carboxyl-containing poly(N-vinylformamide) at the tail end of a functional polymer side chain precursor polymer, water, a catalyst, namely N-hydroxysuccinimide, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide methiodide, potassium hydroxide and ethylene glycol bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid and is applied totreatment of dye wastewater and artistic coating wastewater discharged in dye synthesis or dyeing and finishing processes. The water-soluble binary chelic polymer molecular brush anionic dye catcher has the advantages of high catching capacity, high sedimentation speed, simplicity and convenience in operation, low treatment cost, high adaptability and capability of treating complex heavy metal ions, catching anionic dye molecules and complex heavy metal ions within several seconds, realizing rapid growth to form large sedimented particles and achieving the aim of separating a dye.

The invention relates to a water-soluble binary chelic polymer molecular brush anionic dye catcher as well as a preparation method and application thereof. The water-soluble binary chelic polymer molecular brush anionic dye catcher is characterized by being prepared from polyhydroxyethyl acrylamide as a main chain of a polymer, carboxyl-containing poly(methacryloyloxyethyltrimethyl ammonium chloride) at the tail end of a cationic polymer side chain precursor polymer, carboxyl-containing poly(N-vinylformamide) at the tail end of a functional polymer side chain precursor polymer, water, a catalyst, namely N-hydroxysuccinimide, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide methiodide, potassium hydroxide and ethylene glycol bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid and is applied totreatment of dye wastewater and artistic coating wastewater discharged in dye synthesis or dyeing and finishing processes. The water-soluble binary chelic polymer molecular brush anionic dye catcher has the advantages of high catching capacity, high sedimentation speed, simplicity and convenience in operation, low treatment cost, high adaptability and capability of treating complex heavy metal ions, catching anionic dye molecules and complex heavy metal ions within several seconds, realizing rapid growth to form large sedimented particles and achieving the aim of separating a dye.

The invention relates to a water soluble binary anionic polymeric molecular brush dye capturing settling agent and a preparation method and an application thereof. The water soluble binary anionic polymeric molecular brush dye capturing settling agent is characterized by being prepared from a polymeric main chain polyethoxy acrylamide, carboxyl-containing tert-butyl polymethacrylate at the tail end of an anionic high molecular side chain precursor polymer, carboxyl-containing N-vinyl formamide at the tail end of a functional high molecular side chain precursor polymer, a dimethylformamide solvent and catalysts: N-hydroxy succinimide (NHS), 1-ethyl-3-(3-dimethylamino propyl) carbodiimide iodomethane, potassium hydroxide and carbon disulfide. The water soluble binary anionic polymeric molecular brush dye capturing settling agent is used for treating dye waste water and art dye wastewater discharged in a dye synthesizing or dyeing and finishing process. The water soluble binary anionic polymeric molecular brush dye capturing settling agent is high in capturing ability and high in settling speed, can treat heavy metal ions, can capture cationic dye molecules and heavy metal ions withinseveral seconds, and quickly generates grown settling particles, so as to achieve the aim of quickly separating the dye. The water soluble binary anionic polymeric molecular brush dye capturing settling agent has the advantages of being simple to operate, low in treatment cost, high in adaptability and the like.

The invention discloses a waste heat boiler system for an electric furnace. The waste heat boiler system comprises a multi-section heating surface, wherein the heating surface is modularized, and theheated surface and a steam drum form a steam-water system loop through a rising pipe and a falling pipe. According to the waste heat boiler system for the electric furnace, the problem that the settling efficiency of waste gas dust of the electric furnace is low is solved, and efficient settlement of the flue gas dust of the electric furnace is achieved; meanwhile, normal electric furnace smeltingproduction is not affected, on-line replacement of the heating surface of a waste heat boiler for the electric furnace is achieved, and the problem of on-line replacement of the heating surface is solved; and heat in the waste gas generated by electric furnace smelting is utilized more efficiently, generated steam is used for workshop production, heating, power generation and the like, and the gain value is achieved.

The invention provides a negative ion spray dedusting device, the lamp panel of which is installed on the lamp pole, and the roller group is also installed on the lamp pole, and the roller group is arranged above the lamp panel, and the lamp panel is suspended by a steel cable; There are two rings of striker nozzles between the upper part of the lamp panel and the lower part of the lamp panel. The striker nozzles are connected to the high-pressure fog-making host through the fog-making pipeline; the front end of the striker nozzle is provided with three rings of insulating electrodes; a PM2.5 laser detection module The signal amplifier is connected to the relay, the booster and the high-voltage fog-making host are connected to the power supply through the relay, and the high-voltage fog-making host is also connected to the power supply through a temperature and humidity sensor. And connect to the power supply through the light control sensor. The present invention can be used as square lighting, and can also absorb dust in the air. At the same time, a large amount of negative ions generated can kill airborne germs and decompose harmful gases. It occupies a small area and has a high space utilization rate, so it has high promotional value.

The invention provides an air purification device for indoor formaldehyde removal. A settling chamber, a purification chamber and an air supply channel which are distributed from bottom to top are arranged in a box body, a first filter plate is separated between the settling chamber and the purification chamber, and an air feeder is separated between the purification chamber and the air supply channel; an exhaust fan is arranged on the side surface of the settling chamber, a Lorentz settling assembly is arranged in the settling chamber, and Lorentz force of the Lorentz settling assembly is perpendicular to a rotating shaft of the exhaust fan; a second filter plate is arranged in the purification chamber, the second filter plate is of a net-shaped filter structure woven by warps and wefts, each warp comprises a first thread main body and a photocatalyst thread wound outside the first thread main body, each weft comprises a second thread main body and a metal silver thread wound outside the second thread main body, and an ultraviolet light activation module is arranged on one side of the second filter plate; and a charged particle generator is arranged in the air supply channel. Most harmful substances can be settled, the burden of the filter plates is reduced, the working performance of the second filter plate can be maintained without replacement, and the air purification device is convenient to use and environmentally friendly.

The invention relates to a binary chelating polymer molecular brush cationic dye trapping agent and a preparation method and application thereof. The water-soluble binary chelating polymer molecular brush cationic dye trapping agent is characterized by being prepared from polymer main chain such as polyhydroxyethyl acrylamide, anionic macromolecule side chain precursor polymer polymethylacrylic acid tert-butyl ester containing carboxyl at tail end, functional macromolecule side chain precursor polymer poly-N-vinyl amino formamide containing carboxyl, a dimethylformamide solvent, a catalyst (N-hydroxy succinimide), 1-ethyl-3-(3-dimethylamino propyl)carbodiimide iodomethane, potassium hydroxide, and ethylene glycol diethyl ether diamine tetraacetic dianhydride; the water-soluble binary chelating polymer molecular brush cationic dye trapping agent is used for treating the drained dye wastewater or art coating wastewater in the dye synthesizing or dyeing and finishing process. The binary chelating polymer molecular brush cationic dye trapping agent has the advantages that the trapping ability is strong, the precipitation speed is quick, the complex heavy metal ion can be treated, the cationic dye molecules and the complex heavy metal ions can be trapped in several seconds, and can be quickly grown into large precipitation particles, the purpose of separating dyes is realized, the operation is simple and convenient, the treatment cost is low, the suitability is strong, and the like.

The invention relates to an advanced wastewater treatment process where the hydrostatic and hydrodynamic principle is applied. The process includes the steps that wastewater is fed into an acid-base regulation pond to be subjected to acid-base regulation treatment, the wastewater where acid-base regulation is performed is conveyed into a coagulation pond to be subjected to coagulation treatment, and the wastewater where coagulation is performed is pre-treated through a suction filtration device of a flow guiding groove and then is fed into a biochemical pond to be subjected to biochemical treatment. Before acid-base regulation treatment, the process further includes advection deslagging sand setting mud setting treatment for treating particle matter and suspended matter, advanced treatment is performed after biochemical treatment and sequentially comprises forward sedimentation treatment and reverse sedimentation treatment, and residues obtained after advanced treatment are subjected to residue treatment. The advantages of energy conservation, environmental protection, high wastewater treatment efficiency and cyclic utilization are achieved through the process. The process is extremely low in running cost which is only 60-70% that of a traditional treatment method and is 1 / 5 of membrane treatment cost, the quality of treated water is not inferior to the quality of water treated by a membrane, and the reuse rate of the treated water is higher than that of the water treated by the membrane.

The invention discloses a method for treating leachate through evaporation and membrane filtration, which comprises the following steps: performing steps of filtration and pretreatment, evaporation and concentration, deep treatment and ammonia nitrogen removal: enabling the leachate to sequentially pass through a mechanical cleaning prefilter, a mechanical recompression evaporator, an ozone catalytic oxidation device and a hollow fiber membrane ammonia nitrogen removal device, and treating the leachate into discharge liquid and ammonia water which can reach the discharge standard. The leachate can be effectively treated, meanwhile, the treatment effect is good, and large-scale treatment is carried out.

The invention relates to the field of catalyst recovery, and discloses a valuable metal enrichment method of a waste FCC (Fluid Catalytic Cracking) catalyst. The method comprises the following steps: 1) crushing the waste FCC catalyst to obtain a crushed material; 2) mixing the crushed material with water to obtain slurry; 3) carrying out magnetization treatment on the slurry to obtain magnetized slurry; (4) carrying out sedimentation treatment on the magnetized slurry; and 5) separating to obtain a settling layer enriched with valuable metals after settling treatment, and the crushing treatment enables the Dv (90) value of the crushed material to be 25 [mu] m or less. The method is simple in process, low in production energy consumption and cost, high in regional adaptability, safe and environmentally friendly.

The invention relates to a c and a preparation method thereof and applications thereof. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent is characterized by beingprepared from poly hydroxyethyl acrylamide as a polymer main chain, poly methacrylatoethyl trimethyl ammonium chloride as a cationic polymer with a side chain terminal end containing a carboxyl group,poly(tert-butylmethacrylate) as a cationic polymer side chain precursor polymer with a terminal end containing a carboxyl group, poly N-vinylformamide as a functional polymer side chain precursor polymer with a terminal end containing a carboxyl group, a dimethylformamide (DMF) solvent, a catalyst, 1-ethyl 3-(3-dimethylaminopropyl)carbodiimide iodomethane salt, potassium hydroxide, 1,2-cyclohexanediamine tetraacetic dianhydride and carbon disulfide, and can be used to treat dye wastewater and art coating wastewater discharged by the process of dye synthesis or dyeing and finishing. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent has the advantages of simple operation, low processing cost, strong adaptability, good trapping ability, quick sedimentationspeed, capability to treat complexed heavy metal ions and capture cationic dyes, anionic dyes, and the complexed heavy metal ions in a few seconds.