79 results about "Dyeing wastewater" patented technology

This invention discloses a ternary composite adsorbent based on iron-catechol-boric acid, its preparation method, and its application, belonging to the field of dyeing and printing wastewater treatment. The adsorbent of this invention uses tannic acid with a surface rich in catechol groups as a substrate. A stable metal-phenolic network is formed through the coordination of trivalent iron with catechol groups, efficiently capturing anions using metal bridging and electrostatic attraction to form the adsorption core. Boric acid groups are further introduced as specific recognition units, forming specific dynamic covalent bonds with the catechol groups of anionic dyes. Compared with traditional adsorbents, the adsorbent of this invention provides ultra-high adsorption capacity and selectivity through the synergistic effect of multiple mechanisms, including electrostatic adsorption, coordination complexation, hydrogen bonding, and reversible covalent bonding of borate ester bonds. It can achieve efficient desorption of dyes and recycling of materials, and efficiently and rapidly remove anionic dyes from water.

The utility model belongs to wastewater treatment equipment technical field, specifically disclose a kind of printing and dyeing wastewater enhanced treatment device, including shell, partition and flow guide mechanism;Shell is divided into oxidation layer, biological layer and self-cleaning membrane separation layer from top to bottom inside, partition is transversely installed at each layer junction, and partition is arranged with nanometer gradually increasing drainage hole in order;Flow guide mechanism includes the flow guide plate that can automatically retract, and flow guide plate is respectively arranged in oxidation layer and biological layer, and flow guide plate is vertically arranged, and the top of flow guide plate is rotatably connected with shell inner wall, and is equipped with power source, and the bottom of flow guide plate is always with the upper surface of corresponding partition abuts, and the two side walls of flow guide plate are bonded with its opposite shell inner two side walls.Using the technical scheme, utilize partition and flow guide mechanism, control small molecule organic matter in each layer more quickly enter next layer, macromolecular dye stay time is longer, make macromolecular dye degradation more fully, avoid small molecule organic matter be overmineralization.

The utility model discloses intelligent printing and dyeing wastewater pretreatment and recycling equipment, including fixed cylinder, the inside of fixed cylinder is provided with filter mechanism, and filter mechanism includes the sphere of setting in the inside of fixed cylinder, and the even wall between the circumference lateral surface of sphere and outer wall is evenly provided with fixed groove, and the both sides inner wall between fixed groove is detachably connected with adsorption board, and the fixed connection of the even wall between the circumference lateral surface of fixed cylinder and outer wall has fixed pipe, and the circumference lateral surface fixed connection of fixed pipe is in the inside of sphere. The utility model discloses sphere through the fixed pipe to the inside delivery printing and dyeing wastewater of device, and printing and dyeing wastewater passes liquid outlet groove and enters the sphere, and after the processing of adsorption board, the printing and dyeing wastewater after adsorption and filtration is discharged into fixed cylinder, and then the printing and dyeing wastewater after processing gathers together along with the drainage pipe and is discharged from device, and starts motor, and motor drives the rotation of the shaft, and the shaft drives the rotation of sphere.

This invention discloses a wastewater recycling and regeneration treatment device for dyeing and printing wastewater. The invention relates to the field of dyeing and printing wastewater technology. It includes a filter tank, a hydrolysis acidification tank, an aerobic tank, a decolorization tank, and a filter screen, scraping assembly, unblocking assembly, and layered cover inside the filter tank. The invention uses a first motor to rotate and adjust the filter screen via forward and reverse rotation. A moving push plate assembly rotates with a first belt, and a limiting assembly guides the scraping assembly. A scraper on a second belt scrapes away large particles of impurities accumulated on the filter screen surface and pushes them into an extension cavity for collection. Simultaneously, the unblocking assembly, driven by a threaded section of a first output shaft, drives unblocking columns to insert into the filter holes from bottom to top, preventing the accumulation of flexible impurities such as thread ends. Impurity cleaning and filter screen unblocking can be completed without manual intervention, ensuring smooth filtration and improving wastewater filtration efficiency.

The utility model relates to sewage treatment technical field, concretely relates to a pipe for printing and dyeing wastewater chroma degradation, set up the water delivery pipe as the square tube, convenient cleaning. And set up the sump for collecting dirt at the bottom of water delivery pipe, is used for collecting the precipitate impurity, avoids the precipitate impurity to adhere in the bottom of drain pipeline and causes the incrustation phenomenon, influences the drainage. Set up the pollution vent on the sump top, and set up the rotary baffle at the pollution vent, the rotary baffle can play the role of blocking the impurity deposition when standing up, avoids the impurity deposition to be washed to the rear by the water flow, will keep the impurity deposition all in the sump. And the rotary baffle horizontally lays down, then can seal the pollution vent, and can open the sump without worrying sewage flow. The rotary baffle's standing up and horizontal laying down control through the slide pin cooperation vertical baffle and horizontal baffle, and vertical baffle and horizontal baffle stop the slide pin to force the pivot not to rotate, and then make the rotary baffle keep standing up or horizontal rotation state, simple structure, convenient operation.

This utility model relates to the field of dyeing and printing wastewater treatment technology, and in particular to an anaerobic tank for treating dyeing and printing wastewater. The technical solution includes: a tank body and a tank cover. Positioning grooves are provided at the four corners of the top of the tank body. Positioning rods are fixedly installed at the four corners of the bottom of the tank cover. A screw hole is provided at the top of the fixing frame, and a screw rod is threaded into the inner wall of the screw hole. A pressure plate is movably installed at the bottom of the screw rod. Two fixing rods are movably installed in the tank body. Stirring rods are fixedly installed in a circular array on the outer side of a section inside the tank body on each of the two fixing rods. A fixing sleeve is embedded in the top of the tank cover. Two springs are fixedly installed at the top of the fixing sleeve, and baffles are fixedly installed at the bottom of the two springs. A pressure relief pipe is embedded in the side of the fixing sleeve. This utility model has the advantages of automatically discharging excess gas inside the tank and preventing external air from entering the tank, thus ensuring reaction quality.

The utility model belongs to wastewater treatment technical field discloses a kind of printing and dyeing wastewater treatment device of integrated heterogeneous fenton catalytic oxidation technology, comprising: fluidized bed reactor, fluidized bed reactor bottom uses cyclone water distributor structure;Micro electrolytic tower, micro electrolytic tower is arranged inside fluidized bed reactor, and micro electrolytic tower is filled with iron-carbon composite filler inside, and ultrasonic auxiliary system is also installed in fluidized bed reactor;Adjusting pool, on-line monitoring instrument is installed in adjusting pool, and water inlet pump is arranged between adjusting pool and fluidized bed reactor, and water inlet pump two ends are respectively with adjusting pool and fluidized bed reactor intercommunication;Oxidant dosing pool, oxidant dosing pool includes inclined plate sedimentation tank, and first water delivery pipe is interconnected between fluidized bed reactor and oxidant dosing pool.The utility model can solve the mass transfer efficiency, catalyst recovery and multistage treatment coordination problem of heterogeneous fenton technology in industrial application by multiple unit synergistic effect.

The application discloses a treatment method of high-concentration printing and dyeing wastewater, which comprises the following steps: uniformly mixing a reaction catalyst with the high-concentration printing and dyeing wastewater, then transferring to a hydrothermal reaction kettle (PTFE lining) to react, and obtaining a transparent aqueous solution and black precipitate at the bottom after the reaction is completed. It is detected that the removal rate of the dye is greater than 99% and the removal rate of the colority is greater than 95% after the hydrothermal reaction. The obtained clear brine solution after the hydrothermal reaction can be returned to preparation of dye liquor or used as a washing solution in a washing process in a textile dyeing and finishing process, and the obtained black solid is a dye-derived carbon material, which can be used in multiple fields such as electrochemical energy storage, catalysis and adsorption. The application essentially provides a method for direct treatment and resource utilization of high-concentration and high-salinity printing and dyeing wastewater, which can realize reuse of brine in wastewater and utilize waste heat of the wastewater, and has important significance for resource utilization of textile printing and dyeing industrial wastewater.

This utility model relates to the field of dyeing and printing wastewater detection, specifically to an alarm device for excessive concentration of dyeing and printing wastewater. The utility model includes a support frame with a flow-draining mechanism mounted on it. A cooling mechanism is fitted at the top of the flow-draining mechanism, and a detection tube is connected to the end of the flow-draining mechanism. A detection sensor is installed inside the detection tube, and a protective net is fitted around the sensor. A support tube is located at the top of the detection tube, with an alarm mechanism installed at its top. An outlet pipe is connected to the bottom of the detection tube. In use, wastewater from the wastewater tank is drawn in through the flow-draining mechanism. As the wastewater flows past the top of the flow-draining mechanism, it passes through the cooling mechanism, which cools the wastewater. After cooling, the wastewater enters the detection tube. The protective net filters and blocks large impurities in the wastewater, preventing damage to the sensor from collisions with flowing impurities and thus improving the accuracy of the detection results.

The application discloses a kind of magnetic nanocomposite and its application in dye wastewater treatment, belong to water treatment functional material technical field.The magnetic nanocomposite with Fe3O4 Magnetic Nanoparticle as core, successively coats silica layer, graphene nanosheet layer and chitosan crosslinking layer, through the synergistic effect of chitosan liquid ultrasonic modification and graphene nanosheet surface modification, realize efficient adsorption and magnetic separation recovery to dye molecule.The preparation process of the application is mild controllable, environment-friendly, cost moderate, has wide application prospect in printing and dyeing wastewater advanced treatment, industrial dye pollution control field, graphene nanosheet greatly promotes specific surface area and adsorption site, chitosan provides a large number of amino / hydroxyl active groups, three synergies realize high adsorption capacity.Graphene nanosheet is reduced by liquid phase ultrasonic stripping, avoids stacking;Chitosan is modified by ultrasonic and TiO2 is scattered, combination is more firm, material structure is stable, not easy to lose, acid and alkali resistant.

The present application relates to sewage treatment equipment technical field, especially printing and dyeing sewage reuse treatment complete equipment. Including the shell, the shell one side is provided with water injection module and dosing module, the shell is fixedly connected with first baffle, second baffle, deslagging table and third baffle arranged in sequence in, the shell is provided with several groups of aeration pipe, the shell is provided with transmission module, the transmission module is provided with connecting plate, the transmission module is used to drive the connecting plate moves, the connecting plate is fixedly connected with the deslagging plate, the deslagging plate is limit sliding connection with moving plate. The present application is through moving plate in the process of moving with deslagging plate relative to deslagging plate downwardly extends, improves the depth of deslagging plate under the liquid surface, reduces the probability of accumulated light flocculent impurities from the bottom of deslagging plate backflow to the liquid, guarantees the thoroughness of single scraping, improves the overall treatment efficiency of sewage.

The application discloses a microfiber leather printing and dyeing wastewater treatment device and belongs to the technical field of printing and dyeing wastewater treatment. The microfiber leather printing and dyeing wastewater treatment device comprises a bottom plate, a dry waste box is fixedly connected to the top of the bottom plate, a discharge port is formed in the right side of the dry waste box, a lifting primary separation equipment is fixedly connected to the top of the dry waste box, a water inlet is formed in the top of the lifting primary separation equipment, a purification tank is fixedly connected to the left side bottom of the lifting primary separation equipment, and an activated carbon filter layer is movably connected in the purification tank. When the equipment is started, a motor is started, and the rotating shaft one, the reciprocating screw rod, the sliding groove and the aeration equipment are cooperated to make the movable concave plate move up and down reciprocally and make the aeration holes continuously aerate the wastewater in different water layers, so that the overall aeration of the wastewater is more sufficient, the equipment occupies a smaller area, and the cost is reduced.

The application discloses a kind of dual-wavelength ultraviolet light synergistic ozone micro-nano bubble treatment methyl orange wastewater method, belong to wastewater treatment technical field.The method is first to the micro-nano bubble generator is carried out organic solvent ultrasonic cleaning, deionized water flushing and drying pretreatment, then preparation ozone micro-nano bubble water, finally under the condition of stirring ozone micro-nano bubble water is mixed with methyl orange solution, through UV-222 and UV-254 dual-wavelength ultraviolet lamp irradiation realizes methyl orange degradation.The application combines the synergistic effect of ozone micro-nano bubble and dual-wavelength ultraviolet light, strengthens hydroxyl radical generation and organic matter photolysis, improves methyl orange decolorization and mineralization efficiency, can also photolyze debromination to avoid bromate byproduct, whole process does not need to add reagent, no sludge is generated, equipment system is simple and easy to control, applicable to the treatment of methyl orange azo dye wastewater, with good engineering application value.

The application relates to the technical field of advanced oxidation wastewater treatment, in particular to a supported Br-MnO2 catalyst and a preparation method and application thereof. The application modifies the electronic structure of MnO2 by Br doping, and combines a foamed nickel (NF) carrier and a thermoplastic polyurethane (TPU) binder to construct a supported composite catalyst which is stable in structure and rich in active sites. In the process of activating peroxymonosulfate (PMS) to degrade organic pollutants in printing and dyeing wastewater, the catalyst exhibits excellent catalytic performance and cycle stability. The prepared catalyst has simple process and controllable cost, and the effluent quality of the printing and dyeing wastewater treated by the catalyst can completely meet the reuse standard of the textile dyeing process, and there is no significant difference between the effluent and industrial water in key indexes such as color difference and K / S value, so the catalyst has a wide industrial application prospect.

The present application relates to the field of advanced oxidation wastewater treatment technology, and particularly relates to a supported Ru-gamma-MnO2 catalyst and a preparation method and application thereof. The present application uses foamed nickel as a substrate, and through a thermoplastic polyurethane binder, an active component of Ru-doped gamma-MnO2 is loaded on the surface of the substrate to construct a supported composite catalyst with high catalytic activity and stability. In the process of activating peroxymonosulfate (PMS) to degrade organic pollutants in dyeing and printing wastewater, the catalyst exhibits excellent catalytic activity and stability. The catalyst preparation process is simple, and the cost is low. The effluent quality after treatment can meet the reuse requirements of textile dyeing process, and there is no significant difference in key indicators such as color difference and K / S value compared with industrial water, so the catalyst has a broad industrial application prospect.

The application discloses a kind of textile fabric printing and dyeing wastewater dynamic multistage depth processing system, and the application relates to wastewater treatment technical field, including reaction tank and control module, the sidewall of the reaction tank is provided with aeration assembly, the aeration assembly includes several vice gas pipes arranged in the lower side of reaction tank interior, several aeration holes are formed in the vice gas pipe for gas supply to reaction tank interior, the upper side of the reaction tank is provided with partition assembly, the partition assembly includes partition plate, the partition plate is used to partition the water body in reaction tank, the partition plate can be moved and lifted in the reaction tank, and the directional transfer of water body on both sides of the partition is realized by water pump, so that the effective reaction zone volume of the reaction tank can be dynamically reconstructed according to the actual water inflow, the water body is concentrated and the aeration assembly in the waterless area is closed under small water condition, so as to improve the effective utilization rate of unit aeration gas, and has the advantages of dynamic adjustment of effective reaction process and overall treatment efficiency.

The application relates to a kind of polyether ether ketone hollow fiber loose nanofiltration membrane and its preparation method and application, belong to nanofiltration membrane technical field.Solve the problem that the mechanical strength and flux of existing polyether ether ketone hollow fiber nanofiltration membrane cannot be considered.The method of the present application, first dry polyether ether ketone powder and polyetherimide powder are blended, then melt granulation, then the obtained blended resin particles are extruded, then the obtained blended precursor hollow fiber is heat treated, extracted into selective extractant to extract pore, finally the obtained nascent polyether ether ketone hollow fiber is first cold stretched, then heat stretched, to obtain nanofiltration membrane.The nanofiltration membrane has high strength, high flux and excellent acid, alkali and organic solvent corrosion resistance, the rejection rate of macromolecular weight (>=600Da) dye molecules is more than 95%, and the rejection rate of monovalent salt such as sodium chloride is less than 10%.It is suitable for dye desalination, printing and dyeing wastewater treatment and high value-added dye recovery and other separation processes in harsh environment.

This invention relates to the field of wastewater treatment technology. It provides a denitrification treatment device for dyeing and printing wastewater, comprising: a treatment tank, with a drain outlet fixedly installed at the bottom of the treatment tank, and an inlet fixedly penetrating the surface of the treatment tank. The device utilizes a moving inclined filter plate to transport flocculent material via a conveying mechanism, while water leaks through the surface of the inclined filter plate and then flows back into the treatment tank along the arc surface of the inclined water conveying plate. This achieves the effect of separating and transporting the flocculent material generated during the reaction inside the treatment tank, while also enabling the secondary use of the water separated during the reaction, reducing the consumption of fresh water resources. This technical solution solves the problem in existing technologies where pollutants are not effectively removed after treating flocculent material in wastewater, thus affecting the purity of the final discharge from the equipment.

The utility model discloses a textile printing and dyeing sewage flocculus removing device, including sewage pool, one side of sewage pool is equipped with mobile device, is equipped with moving frame on mobile device, is equipped with drive cylinder on moving frame, is equipped with drive frame with the output of drive cylinder, is equipped with rotating shaft on drive frame, is equipped with mounting device and filter screen box on rotating shaft, is equipped with drive motor on drive frame, is equipped with first gear on drive motor, is equipped with second gear on rotating shaft, adjust the height of filter screen box through drive cylinder, drive motor drives first gear rotation, first gear drives second gear and rotating shaft rotation, and then drives mounting frame and filter screen box to overturn a certain angle, and moves in cooperation mobile device in sewage pool, salvages the flocculus in sewage pool, and it is convenient to clean up.

This invention discloses a method for treating dyeing and printing wastewater based on an nZVI / AGS coupling process, comprising the following steps: wastewater pre-activation and interface optimization, wherein the dyeing and printing wastewater is introduced into a pre-activation tank; nZVI gradient functionalization modification: nZVI is treated using a "core-shell" approach, with nZVI as the core, and conductive polymer polypyrrole and biochar nanosheets are sequentially coated on it; AGS gradient structure directional cultivation: AGS is cultivated using a "dual substrate-magnetic field induced" cultivation method, wherein sodium acetate and glucose are selected as composite carbon sources in a sequencing batch reactor, with a mass ratio of 3:1, and the C:N:P ratio is controlled at 100:5:1, and magnetic nano-iron oxide particles at a concentration of 20-30 mg / L are added; gradient coupling synergistic degradation: the modified nZVI and the optimized cultured AGS are fed into a three-stage gradient coupling reactor, and the wastewater treated by gradient coupling synergistic degradation enters a photocatalysis-membrane filtration coupling unit for further treatment.

This utility model discloses a chemical addition structure for treating dyeing and printing wastewater, relating to the technical field of equipment for dyeing and printing wastewater treatment. It includes a pipe body with an inlet at one end and a drain at the other. A flow-disrupting structure is detachably connected to the inner cavity of the pipe body. This flow-disrupting structure includes a filter frame and a guide plate. One end of the filter frame is open, and the outer wall of the filter frame has evenly distributed mesh holes. The inner wall of the filter frame has a guide plate. This chemical addition structure for dyeing and printing wastewater treatment allows for the independent removal of the internal flow-disrupting structure. After use, any deposits on the inner wall can be cleaned to prevent clogging. The internal flow-disrupting structure can also be used as a spare part, saving maintenance time and achieving convenient cleaning and sustainable use.

The utility model relates to sewage treatment system technical field, specifically disclose a kind of printing and dyeing sewage total antimony adsorption device, including the sewage pipe of setting up drain pipe, filter component consisting of lower filter plate and upper filter plate is vertically movable in drain pipe, filter component is moved to terminal position upwards, and upper filter plate is driven to converge with lower filter plate. The printing and dyeing sewage total antimony adsorption device provided by the utility model, by filter component retarding dirt in sewage before sewage enters treatment pond, improve the treatment adsorption efficiency of total antimony to sewage in treatment pond, and when filter component is moved to the liquid level of upper opening upwards, the dirt retained will float up oil stain, and then realize dirt and oil stain separate from sewage, and in the process of mutual convergence of multiple upper filter plates and approach to lower filter plate, residual sewage in dirt is squeezed out, finally, artificial cleaning dirt is used to guarantee the neatness of filter component, and then improve and guarantee the filtration efficiency of dirt.

The application discloses a kind of printing and dyeing wastewater fiber residue separation recovery and comprehensive utilization device, belong to printing and dyeing wastewater recycling technical field, including base, the upper surface of the base is provided with water inlet homogenization mechanism, gradient separation mechanism and drum filter mechanism, cleaning purification mechanism is arranged on the side wall of the base;In the application, cyclonic flow and drum filter structure can be used to efficiently intercept all particle size fiber residues, improve the total recovery rate of fiber, the removal capacity of micro-fine fiber is greatly improved, the suspended solids content of effluent is stable and up to standard, efficient fiber separation can effectively protect subsequent biochemical treatment, extend the maintenance cycle and service life of various supporting equipment, reduce the operation and maintenance burden of the whole sewage treatment line, the filter cake on the surface of filter screen and the embedded fiber in the pore can be removed simultaneously by using vibration force, the recovery effect of filter screen flux is excellent, the number of shutdown maintenance and manual disassembly cleaning operation is greatly reduced, which not only reduces labor cost, but also avoids economic loss caused by shutdown.

This invention discloses a method and system for the synergistic degradation of COD and new pollutants in industrial wastewater based on catalytic reduction-oxidation. The method includes: adjusting the pH of dyeing and printing wastewater containing perfluorinated compounds (PFCs) to alkaline; adding a reducing agent (sulfite) and a catalyst (alkali metal iodide); then carrying out a catalytic reaction under ultraviolet light irradiation and stirring; adding an oxidizing agent (persulfate PMS) and a catalyst (ferrous sulfate) to the effluent after catalytic reduction; and carrying out a catalytic oxidation reaction under light-proof and stirring conditions. The ferrous sulfate activates the PMS to generate sulfate radicals, completely mineralizing the short-chain fluorine-containing intermediates generated in the reduction stage into CO2 and F. ‑ Simultaneously, it degrades residual organic matter. The method of this invention can efficiently and thoroughly degrade perfluorinated compounds in actual dyeing and printing wastewater, and has strong anti-interference ability, low operating cost, and no secondary pollution.

The utility model relates to wastewater treatment technical field, concretely relates to a dye wastewater treatment system. The color water tank on different production line is communicated on the discharge pipeline through parallel connection, and the discharge pipeline is communicated with the mixed pipeline through the medicament adding pipeline, and the alkali tank and the decoloring agent tank are sequentially communicated from one end close to the discharge pipeline to the other end on the medicament adding pipeline, and the alkali tank and the decoloring agent tank are equipped with the metering pump on the branch line communicated with the medicament adding pipeline. The discharge pipeline is equipped with the drainage pump for conveying the liquid in the color water tank and the flow meter for monitoring the drainage capacity. The utility model discloses aiming at the problem that the wastewater after the dye is replaced cannot be effectively degraded in the sterilization cabinet leak detection color water of the capacity injection workshop, and the system can effectively remove the dye in the wastewater through the addition of alkali and decoloring agent and multistage mixing treatment, restores the color of the wastewater of sewage station total discharge port, biochemical treatment section and sedimentation tank to normal, and ensures that the wastewater reaches the standard discharge.

The utility model relates to wastewater waste heat recovery technical field discloses a kind of printing and dyeing wastewater waste heat recovery unit, including cold water pool, the cold water pool is connected with heat exchanger two and is provided with electromagnetic flowmeter on pipeline, the left end of the front side of heat exchanger two is connected with heat exchanger one by hot gas pipe, the right end of the back side of heat exchanger one is connected with the right end of the front side of heat exchanger two with cold gas pipe, the right side of heat exchanger one is fixedly connected with blowdown pipe, the right side of heat exchanger two is connected with energy storage tank by pipeline and is provided with pressure reducing valve on pipeline, the left side of heat exchanger one is connected with ultrasonic wave filter by pipeline and is provided with water pump and three-way valve one on pipeline.In the utility model, after the double filtration of pretreatment filtration and ultrasonic wave filter, the corrosivity of wastewater is significantly reduced, in addition, ceramic anticorrosive coating is sprayed in pipeline, further improve the service life of unit.

The application discloses a method for in-situ reduction synthesis of a plasma heterojunction material and application of the plasma heterojunction material in piezoelectric-photocatalytic degradation of dye wastewater. 12 The heterojunction catalyst can realize high-efficiency catalytic conversion through electronic mechanical coupling and solar-induced photogenerated carriers. When the material is applied to MB dye degradation, high piezoelectric-photocatalytic activity is exhibited. Compared with a piezoelectric or photocatalytic method alone, piezoelectric-photocatalysis is a high-efficiency environmental purification technology. In addition, the metal titanium template is first recycled for synthesis of the Bi / BTO catalyst, which is beneficial to commercial-scale application and industrial production.

This invention relates to the field of dyeing and printing wastewater pollution control equipment, specifically to a dye recovery and oxidation degradation device for dyeing and printing wastewater. The device includes an oxidation tank and a separation cylinder. The separation cylinder is horizontally positioned below the oxidation tank. Inside the separation cylinder are a movable cover and a pressure plate capable of horizontal sealing and sliding. A filter press chamber is formed between the pressure plate and the movable cover, and this chamber is connected to the bottom of the oxidation tank. A core tube is connected to the side of the movable cover away from the pressure plate, and a sealing plate is provided on the top side of the movable cover that moves laterally with it. By integrating the oxidation tank and the separation cylinder, the sludge pit at the bottom of the oxidation tank is directly connected to the feed pipe of the separation cylinder, eliminating the need for additional auxiliary equipment such as sludge lifting pumps and conveying pipelines. A hydraulic cylinder drives the movable cover to move laterally, creating a filtration and squeezing effect, simultaneously completing the sedimentation, cake pressing, and water filtration processes. Furthermore, the volume of the drainage cavity formed by the sleeve and core tube continuously increases, creating a negative pressure suction effect, which helps the filter plate quickly discharge water, ensuring efficient filtrate collection.

The utility model relates to a cloth printing and dyeing wastewater treatment device, when needing to treat cloth printing and dyeing wastewater in actual production use process, first coagulant is put into the seepage pipe, subsequently the wastewater is washed to the seepage pipe through the liquid washing subassembly, makes the coagulant particle in the seepage pipe inside under the washing of wastewater and opens, and is discharged to the mixing jar through the seepage mouth, simultaneously operating the rotating component, makes the rotating component drive the stirring piece through the seepage pipe and mixes again to the wastewater and coagulant, subsequently the wastewater in the mixing jar enters the inside of the sedimentation tank through the feed port and deposits, thereby can make the wastewater and coagulant mix first, then deposit in the sedimentation tank, make the particulate matter in the sedimentation tank better deposit, reduce the influence to the inside of the sedimentation tank when the wastewater and coagulant mix.

This invention discloses a wastewater treatment device and method for tension-free dyeing of knitted fabrics, relating to the technical field of wastewater treatment equipment. The invention includes a housing with multiple inspection windows on its outer side and a water treatment mechanism in the middle for treating the dyeing wastewater. The water treatment mechanism includes a fiber filtration assembly, comprising a receiving cylinder fixedly installed on the upper part of the housing. This application achieves efficient interception of large particulate impurities such as fibers and lint in the dyeing wastewater through the fiber filtration assembly. The wastewater enters the screening cylinder evenly through a hollow rotating shaft and drainage holes, and is thrown against the inner wall of the screening cylinder under centrifugal force. Impurities are intercepted by the filter holes, while clean water passes through the cylinder wall and is discharged. Simultaneously, the hollow rotating shaft drives the spiral conveyor blades to rotate continuously, pushing the fiber impurities intercepted on the inner wall of the screening cylinder towards the slag discharge cylinder and automatically discharging them to the collection component, avoiding clogging problems caused by impurity accumulation.