31 results about "Textile effluents" patented technology

The utility model discloses an environment-friendly textile printing and dyeing wastewater purification device, which belongs to the technical field of textile wastewater purification, and adopts the technical scheme that the environment-friendly textile printing and dyeing wastewater purification device comprises a treatment tank, a water passing frame is arranged on the inner side of the treatment tank, baffles are fixedly connected to the front side and the rear side of the water passing frame, and filter assemblies are arranged on the two sides of the water passing frame; a water passing net is arranged at the bottom of the water passing frame, an isolation plate is fixedly connected to the inner side of the water passing frame, the treatment pond is arranged as a wastewater purification container, the arranged water passing frame can horizontally move along the inner side of the treatment pond, and filtration can be carried out through the filtering assembly while the water passing frame moves; when water flow passes through the filtering assembly, the baffle is pushed along the rotating shaft, floccules and large-size impurities in the water flow can flow into the water passing frame through the circulating groove together, movement of the water passing frame is stopped periodically, the impurities, the floccules and the like can be precipitated in the container net bag, and at the moment, the container net bag can be taken down to be cleaned or replaced.

This invention belongs to the field of multi-stage treatment of textile wastewater, specifically a high-efficiency and energy-saving textile wastewater treatment device. It includes an equalization tank with a wastewater pipe located at the rear end of the equalization tank. Two separation tanks are formed inside the equalization tank and connected by multiple connecting pipes. A rotating stirring platform is located at the bottom inner side of each separation tank, and multiple fan blades are fixed to the outer side of the stirring platform. A dissolved air flotation module is installed at the front end of the equalization tank. This design not only achieves multi-stage treatment of wastewater but also effectively adapts to the treatment process of multiple batches of different textile wastewater. It ensures that the pollution level of the wastewater injected into the treatment equipment is the same each time, allowing subsequent treatment devices to operate smoothly. Furthermore, it controls the wastewater discharge into subsequent equipment at a constant rate, reducing the problem of excessive load on the treatment device when the water volume is high.

The present application relates to water recycling equipment technical field, specifically to a kind of textile water circulation collection equipment;Water collection part, including a plurality of conducting installation in the first liquid warehouse above flow guide structure, flow guide structure is installed with liquid collection warehouse, liquid collection warehouse is installed with waste liquid pipe and effluent pipe on conducting, and effluent pipe water outlet and first liquid warehouse between conducting installation;Inner processing part, including installation in the first liquid warehouse filtrate inner warehouse, and filtrate inner warehouse is installed with gas injection pipe, stirring blade and water pump;Water collection part can gather production wastewater or rainwater and other water resources, can be introduced into first liquid warehouse by flow guide structure and effluent pipe with water resources;While provided with inner processing part can be extracted to second liquid warehouse after water resources are handled, this collection equipment can be recycled by water collection part with inner processing part after the water resources such as textile wastewater of slight pollution and collected rainwater are handled, can improve water resource utilization, applicable to textile industry and other large water demand industry.

The invention discloses a chemical fiber textile wastewater integrated treatment device which comprises a pre-filtering assembly, the pre-filtering assembly is arranged to be of a bent pipe structure with an inverted triangular section, a supporting frame is fixedly installed at the bottom of the pre-filtering assembly, and a guide-in plate and a guide-out assembly are fixedly installed on the outer surface of the pre-filtering assembly. And the leading-in plate and the leading-out assembly are arranged to be of a V-shaped structure matched with the pre-filtering assembly. The invention relates to the technical field of wastewater treatment. According to the integrated treatment device for the chemical fiber textile wastewater, the chemical fiber textile wastewater flows into the V-shaped guide pipe through the guide-in plate, and the arc-shaped inverted triangular section structure guides water flow to flow directionally, so that fibers and flocculent impurities are preliminarily gathered to the bottom due to gravity. Due to the design of an arc-shaped inverted triangular section, directional flow guide of the wastewater is realized, impurities are promoted to gather by utilizing gravity, the interception efficiency of a subsequent hooking and twisting piece is improved, and the continuity and no retention dead angle of wastewater treatment are guaranteed through adaptive connection of the two ends of the V-shaped guide pipe, the guide-in plate and the guide-out assembly.

The invention discloses a textile wastewater treatment device for a loom. The textile wastewater treatment device comprises a base, a treatment bin, a supporting plate, a mounting frame and the like, a driving assembly drives a stirring plate to stir wastewater to be fully mixed with a medicament, and meanwhile, a stirring rod in an adsorption cavity is driven to rotate through a connecting mechanism, so that adsorbent precipitation is prevented, and the harmful gas purification effect is guaranteed; the lifting mechanism enables the mounting frame to drive the filter plate to lift, so that the suction head recycles waste water conveniently, and solid-liquid separation and filter plate cleaning and replacement are realized; the detachable mechanism can be used for quickly dismounting and mounting the supporting plate, so that flocculates can be treated in a centralized manner; the device integrates multiple functions, forms a complete and efficient wastewater treatment process, and effectively solves the problems of single function, poor treatment effect and the like of a traditional device.

The application discloses a textile wastewater treatment device for a textile machine and relates to the technical field of textile wastewater treatment.The device solves the problem that after the wastewater treatment device processes wastewater, the cover plate needs to be disassembled so as to clean the inner side wall of the treatment box, and the treatment box is a device for processing wastewater.Due to the large volume of the treatment box, if the inner side wall of the treatment box is cleaned alone, the labor intensity of workers is increased, and the cleaning is inconvenient.The device comprises a base, a treatment cylinder, a filter plate, a lifting mechanism, a stirring mechanism, a cleaning mechanism, an exhaust mechanism, a limiting mechanism, a connecting mechanism and a pressing mechanism.The upper end of the treatment cylinder is provided with a cover plate, and the inside of the cover plate is slidably connected with a bottom plate.The cooperation between the bottom plate and the cleaning cotton, the upward movement of the bottom plate along with the cover plate, the opening of the second rotary motor, the rotation of the mounting plate and the cleaning cotton and the convenient cleaning of the inner side wall of the treatment cylinder are achieved.

The application discloses a kind of self phthalocyanine copper catalytic textile wastewater efficient treatment and recovery method, belong to textile wastewater treatment technical field.The application utilizes existing phthalocyanine copper in wastewater in-situ activation oxidant, generates with mild oxidation potential and high selectivity singlet oxygen, can realize the broad-spectrum efficient degradation decolorization efficiency of various synthetic dyes at normal temperature and pressure;And avoid the damage of free radical to phthalocyanine copper structure, so that phthalocyanine copper maintains structure stability in the reaction process, and high-purity recovery can be realized by simple filtration and other physical means;In addition, the application does not need additional complex catalyst preparation and functional modification, system reaction is mild, and the treatment process is green and environmentally friendly, easy for engineering implementation and amplification;As described above, the application not only improves the environmental performance and economic benefits of dye wastewater treatment, but also provides a theoretical basis and technical support for industrial pigment / dye wastewater resource treatment, with wide application prospect and industrial popularization value.

The invention relates to a treatment method of textile wastewater. The invention provides a method for treating textile wastewater and a method for recovering Na2SO4 by using the method for treating textile wastewater, wherein the energy consumption is lower, and high Na2SO4 permeability and high dye retention can be obtained. The present invention relates to a method for treating textile wastewater, the method comprising a separation step for treating textile wastewater containing Na2SO4 and an anionic dye by using a nanofiltration membrane, the nanofiltration membrane is an anion-charged nanofiltration membrane, and the anionic dye is contained in an amount of 1.5 mass% or less relative to the Na2SO4 in the supply liquid supplied to the nanofiltration membrane, so that a permeated liquid in which the Na2SO4 selectively permeates and a concentrated liquid in which the anionic dye is concentrated are obtained.

The invention belongs to the technical field of printing and dyeing wastewater treatment, and particularly relates to energy-saving and environment-friendly textile wastewater treatment equipment which comprises a purification cylinder, two three-phase separators are fixedly connected to the interior of the purification cylinder; the tops of the two three-phase separators are fixedly connected with gas guide pipes; the top of the purification cylinder is fixedly connected with an overflow pipe; the top surface of the purification cylinder is fixedly connected with a gas-liquid separation tank; the gas guide pipe extends into the gas-liquid separation tank, and activated carbon is arranged in the gas-liquid separation tank; a graphite column is mounted on the bottom surface of the purification cylinder; a plurality of uniformly arranged through holes I are formed in the end surface of the graphite column; a plurality of uniformly arranged through holes II are formed in the side surface of the graphite column, and the graphite column and the through holes I and the through holes II in the surface of the graphite column are arranged, so that the printing and dyeing wastewater entering the purification cylinder is heated, and the temperature in the purification cylinder can still be kept at a temperature suitable for microbial growth in winter; further, the decomposition efficiency of the biological sludge inside is ensured.

This invention proposes the design of a high-performance hybrid magnetic material for removing pollutants from industrial textile wastewater containing methylene blue. This material, a bimetallic oxide modified with plant-derived seeds, was evaluated for its adsorption capacity in synthetic wastewater saturated with methylene blue (concentration 10-140 ppm). Optimization of the various process parameters was carried out in batch mode to determine the optimal protocol for removing the target dye. This invention reveals that the magnetic adsorbent is highly effective against methylene blue, with an approximate removal rate of 100% over a very short period of 15 minutes at pH 6.48. The ease of retrieving this magnetic adsorbent with a simple magnet and its regeneration in several cycles without losing its effectiveness encourages its application on an industrial scale.

The invention relates to the technical field of textile wastewater treatment, in particular to a textile wastewater treatment device which comprises an equipment body used for conducting flocculation treatment on textile wastewater, the equipment body comprises a reaction area, a contact area, a separation area and a sludge area, and two chain type conveying belts are installed at the top of the separation area and close to one end of the sludge area; a plurality of scraping plates are mounted on the outer side between the two chain type conveying belts, scum on the liquid level of the separation area is scraped to the sludge area by the scraping plates, the separation cover is located above the two chain type conveying belts, and a scraping opening is formed in the bottom of the separation cover; according to the multi-shaft drive positioning and fixing device for PCB spot welding, the separation cover can be matched with the moving scraper to scrape away hard particles or hard fibers, grease, colloid and other substances on the outer side of the scraper, the situation that the scraper is abraded by the substances attached to the outer side of the scraper is prevented, and meanwhile it is guaranteed that the scraper can fully scrape away scum.

The invention discloses a textile printing and dyeing wastewater treatment device, and particularly relates to a flocculation treatment process technology of textile sewage, the textile printing and dyeing wastewater treatment device comprises a flocculation tank, a micro-sand polymerization tank and a clarification tank which are sequentially arranged along the flow direction of the sewage, and a baffle plate is arranged between the micro-sand polymerization tank and the clarification tank; a water outlet which is formed by the baffle plates and enters the clarification tank is infinitely close to the tank bottom of the clarification tank, and a sand blocking baffle module which is distributed above the water outlet is fixedly mounted in the clarification tank; the sand blocking baffle module is composed of a plurality of inclined plates distributed in a matrix mode, and first elastic shifting plates are arranged on the inclined plates at intervals. The movable frame horizontally moves back and forth in the sewage flowing direction. According to the device, light floc can be subjected to secondary trapping and sedimentation strengthening near the water outlet, the possibility that the floc is lost along with effluent is reduced on the premise that energy consumption and the dosage of chemicals are not remarkably increased, and the solid-liquid separation efficiency of textile wastewater is improved.

The invention relates to the technical field of textile wastewater treatment, in particular to a textile wastewater reclaimed water zero-discharge recycling treatment system which comprises a pretreatment unit, a low-salt textile wastewater treatment unit and a low-salt textile wastewater treatment unit. The pretreatment unit comprises a grating tank, a pH regulating tank, a coagulation and flocculation tank, a sedimentation tank and a detection device; the low-salt textile wastewater treatment unit comprises a low-salt textile wastewater pool, an anaerobic pool, an aerobic pool, a mud-water separation pool, a reverse osmosis membrane, a primary reuse water storage tank, a sludge pool and sludge dewatering equipment; the high-salt textile wastewater treatment unit comprises a high-salt textile wastewater pool, an ultrafiltration membrane, a high-pressure reverse osmosis membrane, a DTRO membrane, an evaporation crystallizer and a secondary reuse water storage tank. Aiming at quality-divided treatment of the salt content of the textile wastewater, the wastewater with low salt content is filtered by a biological method and a reverse osmosis membrane to obtain reuse water; high-pressure membrane decrement concentration and evaporative crystallization are adopted for wastewater with the high salt content, and zero discharge of sewage is achieved.

The invention discloses a continuous anti-clogging textile wastewater treatment system based on double-bin alternate filtration, and relates to the technical field of textile wastewater treatment, the continuous anti-clogging textile wastewater treatment system specifically comprises a filter bin and communicating pipes, the filter bin is composed of two side sealing cylinders, the two side sealing cylinders are communicated through the communicating pipes installed up and down, and the communicating pipes on the two sides are opened; according to the double-bin alternate filtering system provided by the invention, a complex valve group is replaced by mechanical linkage, timed switching is replaced by dynamic pressure difference triggering, and an interception lamination self-loosening structure is innovatively developed, so that the problems of wastewater fiber interception backflushing cleaning operation, residue discharge through a waste discharge pipe and shutdown maintenance caused by blockage of a traditional single filter element are solved; breakthrough progress is achieved in the aspects of continuity guarantee rate, maintenance cost and fiber impurity adaptability, and an efficient, stable and low-consumption technical path is provided for textile wastewater treatment.

The invention relates to the technical field of wastewater treatment pools, and discloses a textile wastewater treatment pool capable of preventing dirt adhesion, the textile wastewater treatment pool comprises a base and an external controller, the top of the base is provided with a circulation mechanism, and the top of the circulation mechanism is provided with a stirring mechanism; the circulating mechanism comprises a cleaning groove plate fixedly connected to the inner wall of the base, a pool body is fixedly connected to the top end of the base, a feeding valve is fixedly connected to the side wall of the bottom end of the pool body, a discharging valve is fixedly connected to the side wall of the top end of the pool body, and a flocculating agent and sewage can be fully mixed through rotating stirring of a stirring plate; meanwhile, through linkage adjustment of a driving shell and a second connecting rod, angle switching of the stirring plate can be achieved, the stirring plate is matched with lifting and reverse rotation of a second fixing rod, viscous impurities attached to the surface of the stirring plate are removed through impact force of mixed liquid, online cleaning can be completed without disassembly, and the practicability is high. And the maintenance difficulty is greatly reduced.

The application provides a textile wastewater treatment device with good filtering effect, which comprises a main body, a filtering partition and a cleaning mechanism; the main body is provided with a first cavity for storing textile wastewater, an input port and an output port; the filtering partition is arranged in the first cavity, the input end of the filtering partition is arranged on the side close to the input port, the output end of the filtering partition is arranged on the side close to the output port, the cleaning mechanism is arranged on the input end of the filtering partition, and the cleaning mechanism is in sliding connection with the filtering partition. Through the combination of the main body, the filtering partition and the cleaning mechanism, the textile wastewater is injected into the first cavity through the input port, filtered by the filtering partition and then flows out from the output port, the filamentous waste in the textile wastewater is intercepted on the filtering partition, and the cleaning mechanism removes the filamentous waste on the filtering partition, so that the textile wastewater treatment device with good filtering effect can remove the filamentous waste automatically, and has good practicability.

The invention relates to the technical field of wastewater treatment, in particular to a grey cloth wastewater zero discharge treatment device and process, which comprises a treatment cylinder, a filter cylinder, a primary filter unit, a flocculation unit and a drainage pump, according to the invention, the following problems existing in the process of innocent treatment of textile wastewater in the prior art can be solved: a large amount of fiber chips in the wastewater are easy to block the device, so that the wastewater treatment efficiency is influenced; a flocculating agent is directly added, so that floc formed by large-volume impurities is not uniform in density and is difficult to effectively precipitate; according to the device, wastewater can be preliminarily filtered to filter out large-size suspended solids such as textile wool and fiber chippings in the wastewater, regular cleaning can be achieved, and the situation that the primary filtering effect on the wastewater is affected by residual impurities is avoided; according to the invention, the flocculating agent is added into the wastewater and uniformly mixed, so that residual suspended matters and small-size impurities in the wastewater are gathered into large floccules, and the impurities in the wastewater can be conveniently removed.

The invention relates to the technical field of textile wastewater treatment, in particular to a non-woven fabric waste sewage treatment device which comprises a wastewater impurity removal mechanism, a protective energy supply mechanism mounted on the wastewater impurity removal mechanism and a power assisting mechanism mounted in the wastewater impurity removal mechanism and the protective energy supply mechanism. The wastewater impurity removal mechanism comprises a water storage barrel, a built-in vertical pipe is mounted in the water storage barrel, and a liquid inlet pipe and a liquid outlet pipe which are symmetrically distributed are mounted on the two sides of the bottom of the water storage barrel. Sewage generated in the non-woven fabric production process is input into the water storage barrel from the liquid inlet pipe, the driving wheel disc is driven by the motor and the deflection gear, and finally the driving wheel disc can push the zipper and the anti-seepage cushion discs to rotate regularly; and the three soft rubber sticks arranged on the anti-seepage pad can dynamically intercept and remove dirt in the sewage in the water storage cylinder, so that the dirt in the sewage in the pretreatment stage is effectively and efficiently cleaned.

The invention relates to the technical field of textile wastewater recovery, in particular to a textile wastewater recovery system which comprises a sedimentation tank, a motor and a water inlet. An output shaft of the motor penetrates through the top of the sedimentation tank and is rotationally connected with the top of the sedimentation tank; the water inlet is fixedly connected to the top of the sedimentation tank; the cleaning assembly is positioned in the sedimentation tank; the filtering assembly is positioned in the sedimentation tank; one end of the rotating rod is fixedly connected with an output shaft of the motor, and the other end of the rotating rod sequentially penetrates through the cleaning assembly and the filtering assembly from top to bottom; through cooperation of the cleaning assembly, the filtering assembly and the putting assembly, the wastewater passes through the cleaning assembly to primarily clean floating objects in the wastewater, and then the cleaned wastewater is precipitated and filtered through the filtering assembly and the putting assembly, so that water meeting the water quality requirement is obtained; the environment pollution is avoided, and meanwhile, the operation is convenient.

This invention proposes a bio-adsorbent based on black cumin seeds, effective for treating industrial textile wastewater. The black cumin seeds are washed with ultrapure water and air-dried for 12 hours, followed by a further drying step at a temperature of 50 °C for 24 hours. The dried seeds are then ground into a powder with a particle size of 600 µm. The chemical activation of this bioadsorbent is achieved by placing 10% of the powder in a 1M NaOH solution for one hour until the pH reaches 13. Once activated, the black cumin powder is washed several times with ultrapure water until the pH reaches 7, then dried at 50°C for 24 hours. The treatment of textile wastewater is carried out by batch adsorption of the target dye onto the activated black cumin.

The utility model relates to the technical field of textile wastewater, in particular to textile wastewater treatment equipment which comprises a bottom plate, a first device barrel and a second device barrel, a transmission mechanism is arranged between the first device barrel and the second device barrel, a connecting rod is arranged on the outer wall of the first device barrel, and a filtering mechanism is arranged at the other end of the connecting rod. A filtering mechanism is arranged in an inner cavity of the first device barrel, a sieve plate is arranged in the inner cavity, located on the lower side of the filtering mechanism, of the first device barrel, a stirring mechanism is arranged at the bottom end of the sieve plate, and a quartz sand layer and an activated carbon layer are sequentially laid in the second device barrel from top to bottom. By arranging a stirring mechanism, textile fabrics in the filtered textile wastewater are cleaned again, residual textile threads are wound and collected, and powder water is purified through a quartz sand layer and an activated carbon layer and then discharged.

The utility model provides a wastewater purification device for a textile mill, which comprises a purification box, support legs and a water outlet pipe are arranged at the bottom of the purification box, a top cover is detachably arranged at the top of the purification box, a herringbone water inlet pipe is arranged on the top cover, and two water outlet ends of the water inlet pipe are respectively provided with a first control valve. A plurality of springs, a mounting plate, a filter cartridge, a vibration motor, a discharge pipe, a second control valve, a guide hose and a blanking pipe are vertically arranged on the top wall of the purification box. According to the wastewater purification device for the textile mill, disclosed by the utility model, not only can the basic requirements of filtering textile wastewater and removing large-particle impurities in the textile wastewater be met, but also the scraping structure can be cleaned by a worker under the condition that the device does not need to stop working; therefore, the influence on the overall efficiency of filtering and purifying the textile wastewater is avoided.

This invention relates to the field of textile wastewater treatment technology and discloses a wastewater recycling and treatment device for fabric antibacterial treatment. It includes a wastewater recycling and treatment room, which is internally divided into a reaction zone, a flotation contact zone, and a separation zone by partitions. Filter screens are installed on the partitions. A stirring mechanism is installed inside the reaction zone, comprising a motor fixed to the top of the wastewater recycling and treatment room. The output end of the motor is connected to a rotating shaft, and a stirring rod is fixedly connected to the rotating shaft. By setting up a three-stage treatment structure of reaction zone, flotation contact zone, and separation zone, graded treatment of antibacterial wastewater is achieved. The stirring mechanism in the reaction zone ensures thorough mixing of the antibacterial agent and wastewater, promoting particulate matter adhesion. In the flotation contact zone, electrode plates electrolyze to generate microbubbles, carrying suspended solids to the surface. In the separation zone, a circulating belt and a baffle plate separate scum from the clean water, resulting in high treatment efficiency and good effluent quality.

This invention introduces an innovative method for synthesizing nano zeolite from sludge generated during textile wastewater treatment. The process involves the ፀቨር[6ጠ extraction of silica and alumina from the sludge, which is often considered a waste product. By converting this waste into nano zeolite, the invention not only addresses the pressing issue of textile waste disposal but also creates a valuable material with diverse applications. Nano zeolite possesses unique properties such as high surface area and ion exchange capabilities, making ቪ suitable for environmental remediation, including water purification and soil enhancement. Additionally, its applications extend to industrial processes, such as catalysis and adsorption. This dual benefit of waste valorization and product development highlights the potential of sustainable practices in the textile industry.

This invention relates to the technical field of textile dyeing wastewater treatment equipment, and discloses an improved textile dyeing wastewater treatment device and its usage method, including a device shell with several support legs fixedly connected to the bottom of the shell. In this invention, the rotation of gear two drives the rotation of several auxiliary shafts two on the conveying shaft, which in turn drives the rotation of the transmission filter screen. Simultaneously, the rotation of the stirring rod causes the wastewater inside the inner cylinder to rotate along the inner wall of the inner cylinder. When the textile wastewater passes through the transmission filter screen on the auxiliary shaft one, the flocs in the wastewater adhere to the surface of the transmission filter screen. At this time, the rotation of the transmission filter screen transports the flocs inside the inner cylinder to the flocculation chamber. This design is beneficial in two ways: firstly, it helps to reduce the large amount of flocs inside the inner cylinder in a timely manner; secondly, it facilitates the transfer of already flocculated flocs to the flocculation chamber, thereby preventing excessive stirring force of the stirring rod from causing the flocs to break and hindering the separation of impurities.

The invention discloses a textile wastewater safe discharge treatment device based on membrane separation, which is applied to the field of sewage treatment, and is characterized in that a filtering process is set into three stages of pretreatment, main treatment and post-treatment, and the pretreatment is used for filtering impurities such as fiber scraps, dye particles and undissolved chemicals in wastewater; a plurality of membrane materials are adopted for main filtration and can be flexibly combined, fluctuating water quality components are detected in real time by utilizing a water quality sensor, so that a treatment path is dynamically configured and optimized, the adaptability of a membrane separation assembly is effectively improved, and compared with an existing immobilized filtration process, differentiated and precise treatment of wastewater can be realized; an online cleaning structure is arranged in the pretreatment stage, ultrasonic vibration and magnetic adsorption technologies are used for cleaning impurities, ultrasonic vibration can effectively prevent an impurity layer from being compacted on a filter screen, the filter screen is prevented from being blocked, the impurities can be rapidly discharged through magnetic adsorption, the solid-liquid separation speed is high, and the solid-liquid separation efficiency is high.

This invention discloses a polyethersulfone hollow fiber nanofiltration membrane for dye / salt separation, its preparation method, and its application, belonging to the field of membrane separation technology. This invention proposes a polyethersulfone hollow fiber nanofiltration membrane for efficient dye / salt separation, its preparation method, and its application. Polyethersulfone and diphenylmethane diisocyanate are dissolved in an organic solvent to prepare a spinning solution. Using a wet spinning process, the spinning solution is extruded and then sequentially immersed in a pure water coagulation bath and a compound-containing aqueous solution coagulation bath for phase inversion. During coagulation, the diisocyanate reacts with water to generate CO2, forming a porous structure in the fiber. Upon entering the compound coagulation bath, the residual isocyanate groups undergo a condensation reaction with one end of the compound, constructing a polyurea functional layer containing functional groups in situ on the fiber surface and the inner wall of the pores. This invention transforms byproducts from traditional wet spinning into functional components, simultaneously achieving the construction and functional modification of the porous structure within the membrane in a one-step process. The resulting nanofiltration membrane possesses both hydrophilicity and strong negative charge, exhibiting a high rejection rate for dye molecules while maintaining a low rejection rate for inorganic salts, thus enabling highly efficient and selective separation of dyes and salts. This preparation process is simple and highly controllable, showing promising prospects for industrial application in textile wastewater treatment and resource recycling.

This invention belongs to the field of wastewater treatment technology, and specifically relates to a device for treating and reusing textile dyeing and printing wastewater. It includes a base and an RO reverse osmosis filter fixedly mounted on top of the base. One end of the RO reverse osmosis filter is fixedly equipped with an inlet pipe. The device also includes: a wastewater detection mechanism mounted on the wall of the inlet pipe, used to detect the salt content, calcium and magnesium content, and flow rate of the wastewater; a scale inhibitor addition mechanism mounted on the top of the base and on the wall of the inlet pipe; and a pressurization mechanism mounted on the wall of the inlet pipe. This invention achieves precise control of scale inhibitor dosage through multi-parameter water quality detection, adaptive adjustment of the injection angle based on flow rate, and multi-stage dispersion enhancement of agent mixing, comprehensively improving scale inhibition effect and mixing uniformity. This effectively protects the spiral wound RO membrane, improves desalination efficiency, and ensures the long-term stable and efficient operation of the textile dyeing and printing wastewater treatment and reuse device.

The present application relates to the related field of textile wastewater filtering equipment, in particular to a textile wastewater filtering and purifying equipment and a purifying method, the filtering and purifying equipment comprising a mechanical hand, a decontamination tank and a jacking cylinder, the decontamination tank being provided with a liquid inlet and a liquid outlet, the mechanical hand clamping a decontamination assembly, the decontamination assembly comprising a main plate, a first limiting piece, two groups of second limiting pieces, two groups of side plate sets and eight decontamination fiber plates, each group of side plate set comprising an inner plate and an outer plate, and the main plate being fixedly connected with four limiting horizontal shafts. In the present application, a plurality of decontamination fiber plates capable of reciprocating stirring in the textile wastewater are used to adsorb dye impurities in the textile wastewater, and after the dye impurities in the textile wastewater in the decontamination tank are removed, the plurality of outer plates and inner plates move towards the main plate, thereby extruding the plurality of decontamination fiber plates and removing the dye impurities in the decontamination fiber plates, so as to ensure that the plurality of decontamination fiber plates can be used repeatedly.

A textile wastewater treatment device comprises a first treatment box, a second treatment box is installed in the first treatment box, a containing space for storing liquid is formed between the first treatment box and the second treatment box, an aeration device is installed at the bottom in the containing space, and the aeration device conducts aeration treatment on sewage in the containing space. Therefore, a textile mill can perform simple filtration treatment before treatment of home textile wastewater, volume gravity of transported wastewater is reduced, transportation is convenient, subsequent treatment procedures are reduced, meanwhile, microorganisms in sewage are prevented from being fermented and smelly in a short time to generate odor, and aggravation of subsequent wastewater treatment procedures is avoided.