238 results about "Electroplating wastewater" patented technology

The invention discloses a post-electroplating wastewater treatment system and treatment method with graded recovery, and relates to the technical field of electroplating wastewater treatment.The post-electroplating wastewater treatment system comprises a recovery cylinder, a primary separation unit, a chemical adding unit, a final-stage separation unit and a driving unit, and the recovery cylinder is used for mounting and fixing the primary separation unit, the chemical adding unit, the final-stage separation unit and the driving unit; the primary separation unit is used for separating greasy dirt and precipitated impurities, the chemical adding unit is used for separating suspended solids, the final-stage separation unit is used for separating organic matters and cleaning the inner wall, and when sewage enters the recycling barrel, the driving unit is used for controlling the primary separation unit to separate and recycle the greasy dirt and the precipitated impurities, and the chemical adding unit is used for recycling the suspended solids; organic matter separation and inner wall cleaning are carried out through the final-stage separation unit, and the influence on the separation and recovery efficiency is avoided.

The utility model provides a process system for recycling electroplating comprehensive wastewater, which relates to the technical field of wastewater treatment and is characterized in that a liquid inlet of a primary electrodeionization device is communicated with a primary wastewater treatment unit, and a fresh water outlet of the primary electrodeionization device is communicated with a secondary wastewater treatment unit; a concentrated water outlet of the first-stage electrodeionization device is communicated with the second-stage electrodeionization device; a fresh water outlet of the secondary electrodeionization device is communicated with the primary electrodeionization treatment device, and a concentrated water outlet of the secondary electrodeionization device is communicated with the solid-liquid separation device; a liquid outlet of the solid-liquid separation device is communicated with the evaporation device; the evaporation device comprises a condensed water outlet and a byproduct salt outlet, and the condensed water outlet is communicated with the secondary wastewater treatment unit; a produced water outlet of the secondary wastewater treatment unit is communicated with the produced water collecting tank; a waste liquid outlet of the second-stage wastewater treatment unit is communicated with a second-stage electrodeionization device, so that pollutants such as heavy metal ions and organic matters in wastewater can be removed, and cyclic utilization of water resources and recovery of salt resources are realized.

The invention belongs to the technical field of industrial wastewater purification, and discloses a membrane-free single-tank water electrolysis hydrogen production-electroplating wastewater enrichment coupling method and device, and the method comprises the following steps: injecting a neutral electroplating wastewater mixed solution into a membrane-free single tank; discharging air in the membrane-free single tank, and heating the neutral electroplating wastewater mixed solution to a preset temperature; direct current is firstly introduced into the heated neutral electroplating wastewater mixed solution, so that metal ions in the neutral electroplating wastewater mixed solution migrate to the hydrogen evolution electrode, then the direct current is converted into pulse current, so that the metal ions deposit on the hydrogen evolution electrode, and hydrogen precipitated on the hydrogen evolution electrode is continuously collected; closing the current, taking out the hydrogen evolution electrode and collecting metal ions on the hydrogen evolution electrode; and adding an oxygen evolution catalyst into the membrane-free single tank, starting the magnetic rotor to carry out oxygen evolution reaction, and taking out the oxygen evolution catalyst until bromate in the neutral electroplating wastewater mixed solution is completely reduced. According to the invention, the preparation of high-purity hydrogen and oxygen and the enrichment of metal ions can be realized.

The invention relates to the technical field of electroplating wastewater treatment, and discloses an electroplating wastewater pollution early warning and regulation system based on Internet of Things, comprising: a sensing layer for collecting characteristic parameters of an electroplating wastewater treatment link through distributed sensing nodes, the characteristic parameters including a water quality parameter, an equipment operation parameter and an environmental parameter, a wireless communication module is arranged in the sensing node; the network layer is used for constructing a wireless communication network and transmitting the parameters acquired by the sensing layer to the application layer through a multi-hop relay; and the application layer receives and processes the parameters transmitted by the network layer to realize pollution early warning, pollution risk prediction and regulation and control instruction generation, and the regulation and control instruction is fed back to the execution layer through the network layer. By adopting a channel frequency hopping mechanism, when it is monitored that the interference intensity of a current communication channel exceeds a preset interference threshold value, the standby channel can be automatically switched, instruction transmission of an application layer and an execution layer is not interrupted, and it is guaranteed that data such as water quality parameters and equipment operation parameters collected by a sensing layer are continuously and stably transmitted to the application layer.

The invention discloses a complex-containing electroplating wastewater treatment method, and belongs to the technical field of sewage treatment engineering, and the complex-containing electroplating wastewater treatment method comprises the following steps: S1, introducing complex-containing electroplating wastewater into an adjusting tank for homogenization and impurity removal; s2, carrying out complex breaking treatment on the homogeneous and impurity-removed complex-containing electroplating wastewater through a multi-source catalytic oxidation complex breaking unit; s3, the pH is adjusted, impurities in the complexed electroplating wastewater are moderately precipitated, then the complexed electroplating wastewater is filtered through a coagulation microfiltration membrane assembly, and a metal liquid phase is obtained; s4, after being fed into a resin recovery unit, eluting, and finally recovering valuable metals through an electro-deposition tank or a resin coupling evaporation concentration unit; s5, feeding the wastewater into a guarantee reaction sedimentation tank for oxidation reaction and coagulation reaction to obtain primarily treated wastewater; and S6, mixing the primarily treated wastewater, and treating the wastewater in an evaporation recycling system to obtain standard wastewater and industrial salt. According to the invention, heavy metal complexes in the electroplating wastewater can be effectively broken, and efficient recovery of heavy metals and reuse of wastewater reaching the standard are realized.

The invention provides an electroplating wastewater dosing feedback regulation method based on online water quality detection, and relates to the technical field of environmental chemical analysis and water quality monitoring, the electroplating wastewater dosing feedback regulation method comprises the following steps: collecting chromium ion concentration parameters, pH value parameters and oxidation-reduction potential parameters of electroplating wastewater, and combining a trained chromium ion reduction model to carry out real-time calculation and analysis; and dynamic correction and closed-loop feedback adjustment of the dosage are realized. Therefore, the accuracy and the response speed of dosing control can be remarkably improved, the problem of excessive dosing or insufficient dosing of the medicament is effectively reduced, and meanwhile, the stability and the standard-reaching rate of wastewater treatment are ensured, so that the economical efficiency and the environmental protection property of wastewater treatment are improved.

The invention relates to the technical field of wastewater treatment, and discloses an electroplating wastewater sodium ion removal method based on ion exchange resin, which comprises the following steps: step 1, pretreating electroplating wastewater; step 2, flocculent precipitation; 3, plate-frame pressure filtration treatment is adopted; step 4, ion exchange treatment; in the step 4, resin which is subjected to polyethylene glycol grafting treatment and has sulfonic acid groups is used as sodium ion selective ion exchange resin. According to the method for removing the sodium ions in the electroplating wastewater based on the ion exchange resin, the PEG grafted resin with the sulfonic acid group is adopted for treating the electroplating wastewater, so that the sodium ions in the wastewater can be more effectively removed, the removal efficiency of the sodium ions is improved, and the service life of the ion exchange resin is prolonged. In addition, a medicament combination form of the modified zeolite and the PAM flocculant is adopted, and a complexing agent with relatively high price is not needed, so that the medicament cost can be greatly reduced.

The invention provides comprehensive treatment equipment for electroplating wastewater, and relates to the technical field of electroplating wastewater treatment, and the comprehensive treatment equipment comprises a treatment sedimentation tank and a movable agent feeding mechanism. The side wall of the treatment sedimentation tank is provided with an outer supporting slideway and a switching assembly; and the movable mechanism comprises a movable frame, an agent feeding structure, a filter plate stirring assembly and a forward moving driving assembly. The filter plate stirring assembly is driven by the forward-moving driving assembly, a rotary stirring mode and a static filtering mode are alternately switched in the moving process, waste water is stirred to drive the floating type throwing assembly to move up and down, and dynamic and uniform throwing of chemicals is achieved. According to the equipment, the mixing effect is optimized through a double stirring mode, purified water and waste residues are separated by the filter plate assembly after precipitation, and precipitates are pushed to be intensively discharged during deslagging. The device solves the problems of non-uniform medicament mixing and low precipitation efficiency in the traditional process, has the advantages of high automation degree, thorough separation, energy conservation and environmental protection, and is suitable for efficient treatment of electroplating wastewater.

The invention discloses a treatment method of electroplating wastewater, and belongs to the technical field of electroplating wastewater treatment. The process comprises the following steps: electrically adjusting the pH value of the electroplating wastewater to 2.5-4.0, adding ferrite, adopting a Ti / PbO2 anode and a graphite cathode, controlling the current density to 15-30mA / cm, introducing air, reacting for 40-80 minutes, and adjusting the pH value to 6.0-7.0 after the reaction; introducing the wastewater into a chelating resin column, wherein the chelating resin is an amino phosphonic acid type or iminodiacetic acid type; the method comprises the following steps of: introducing into a built-in filter column, loading two layers of recrystallized silicon carbide honeycomb ceramic membranes in the filter column in parallel, performing cross-flow filtration under the conditions that the operation pressure is 0.8-2.0 MPa, the temperature is 25-40 DEG C and the cross-flow velocity is 1.5-3m / s, and collecting permeate; the permeate liquid is used for backwashing every 8-12 hours of operation. According to the method, heavy metal ions in the electroplating wastewater can be effectively removed, and the treatment efficiency of the electroplating wastewater is improved.

The invention discloses an electroplating wastewater treatment decision-making system based on multi-modal data analysis, relates to the technical field of wastewater treatment, and aims to solve the problems that in the prior art, due to the lack of synchronous acquisition and analysis capability for multi-source heterogeneous data, the system is often difficult to find water quality fluctuation, equipment abnormity, process deviation and the like in time. A processing decision-making platform is taken as a core, and a multi-modal data acquisition and analysis unit, a multi-factor dynamic analysis unit and a resource scheduling analysis unit are linked to form a closed-loop decision-making process of data acquisition-dynamic analysis-resource scheduling; the processing decision platform is used as a center, triggers each unit to execute a task by sending a control signal, receives an analysis signal fed back by each unit, and outputs a final decision (such as parameter adjustment and process regulation and control) according to the signal content; the three units are clear in division of labor, data synchronous verification, medicament dynamic optimization and resource load matching are achieved in sequence, and it is ensured that the processing process is accurate, efficient and stable.

The invention discloses a grafted cellulose-based separation membrane and a preparation method thereof. The separation membrane comprises a membrane substrate containing cellulose and double grafting chains growing on the surfaces of the two sides of the membrane, the double-grafted chain comprises a Block A chain grafted to the membrane substrate and a Block B chain grafted to the end of the Block A chain; the structure of the separation membrane is as follows: a substrate-[Block A]-[Block B], a Block A chain is a block copolymerization chain containing a thiourea group and an amidoxime group, and a Block B chain is a block hydrophobic chain containing a vinyl imidazolium salt graft product. The adsorption capacity of a BlockA chain to heavy metal ions can be improved through thiourea group and amidoxime group bidentate synergistic coordination; the BlockB chain can repel harmful anions through static electricity of the vinyl imidazole onium salt and remove organic matters through hydrophobic-hydrophobic interaction. The preparation method of the separation membrane comprises the steps of double-sided activation of a membrane substrate, initiator fixation and double-sided growth of a Block A chain and a Block B chain, the Zeta potential of the obtained grafted cellulose membrane is larger than or equal to + 40 mV, the water contact angle is larger than or equal to 105 degrees, the carbon yield at 600 DEG C is larger than or equal to 30%, and the separation membrane is suitable for treatment of electroplating wastewater and other complex polluted wastewater.

The present application belongs to the technical field of wastewater treatment, and discloses a method for treating electroplating wastewater by using bioreduction of biogas slurry and combined iron bio-oxidation, which is a secondary combined use technology for removing various heavy metals in electroplating wastewater by iron bio-oxidation, comprising the following steps: (1) collecting fermentation biogas slurry, and performing ultraviolet irradiation sterilization after aeration; (2) adding potassium dichromate solution and fresh nutrient solution to the sludge system, and culturing anaerobic sludge; (3) adding treated biogas slurry to the anaerobic sludge, and repeatedly domesticating chromium-reducing microorganisms; (4) configuring a mixed solution of comprehensive electroplating wastewater and biogas slurry according to a certain proportion; (5) building a primary treatment biological reactor, and reducing Cr(VI) in wastewater by anaerobic biological reduction under the promotion of pyrite; and (6) building a secondary biological reactor filled with straw biomass charcoal, and generating iron oxides under the action of functional bacteria to continue adsorbing Cd, Cu and Ni ions in wastewater.

The invention relates to the technical field of wastewater treatment, in particular to electroplating wastewater treatment equipment and method.The electroplating wastewater treatment equipment comprises a concrete bottom plate prefabricated on the ground, a plurality of bottom beams are fixedly installed on the concrete bottom plate through bolts, and a plurality of stand columns are fixedly installed on the bottom beams through bolts; two limiting strips are arranged on the same side face of the stand column. A limiting groove is formed between the two limiting strips, an assembly plate body is clamped in the limiting groove, each limiting strip comprises a fixed part fixed to the corresponding stand column and a rotating part arranged at the lower end, each rotating part is rotationally connected to the corresponding fixed part and abuts against the assembly plate body in the corresponding limiting groove, and the length of each rotating part is the same as the height of the assembly plate body; and when the rotating part does not limit the lowermost assembly plate body any more, the corresponding assembly plate body is taken out from the position corresponding to the lowermost rotating part, and the upper assembly plate body is pushed to move downwards. The assembly plate has the effect that the assembly plate body is convenient to replace.

The utility model provides a low-concentration electroplating wastewater two-stage treatment device driven by a source heat pump, which belongs to the field of electroplating wastewater treatment and can operate at medium and low temperature without special equipment through a tower top, a hot air inlet pipeline, a heat source pump, an electroplating wastewater inlet pipeline, a pressure nozzle and a waste gas outlet pipeline. The requirement for sealing performance is low, consumables are few, the requirement for materials is not high, simplicity and convenience are achieved, and the operation cost is low; the device can be used for directly observing the whole evaporation and separation process of the evaporation and separation tower body part, so that unfavorable conditions occurring in the heat and mass transfer process can be conveniently found in time and adjusted and optimized in time; the device treats electroplating wastewater by using air as a separation carrier, and the separation carrier is convenient to obtain and is basically not limited by the environment; the device adopts the visual polyacrylate material tower body which is high in transparency, low in price and easy to machine, and the internal temperature of the tower body is lower than that of the tower top part, so that the problems of softening and deformation of organic glass caused by high temperature and the like are effectively avoided.

The application discloses an environment-friendly electroplating wastewater treatment device and relates to the technical field of wastewater treatment. The device comprises a filter box, a sealing cover is hingedly connected to the top of the filter box, a filter frame for filtering electroplating wastewater is arranged in the filter box, a stirring rod for mixing wastewater and reagents is arranged in the filter box, and a pressing plate for extruding impurities on the filter frame is slidably arranged through the sealing cover. The environment-friendly electroplating wastewater treatment device has the advantages that solid impurities in wastewater can be filtered out before the wastewater reacts with reagents through the arrangement of the filter frame; when the filter frame is full of impurities, the impurities can be compacted through the cooperation of the driving element and the pressing plate, the remaining liquid in the filter frame can be extruded, the occupied space of the impurities can be reduced, the impurities can be prevented from overflowing, the treatment of the wastewater can continue, and the treatment efficiency of the wastewater is effectively improved.

The utility model provides a kind of electroplating wastewater hexavalent chromium reduction automatic dosing control device, including pH adjusting pool, reduction reaction pool, sampling pump, video recognition system, control assembly, dosing pump and dosing tank;Reduction reaction pool is connected after pH adjusting pool;Sampling pump is connected with reduction reaction pool by sampling pipeline, and video recognition system is connected after sampling pump, and video recognition system is reconnected to reduction reaction pool by reflux pipeline after video recognition system;Video recognition system is connected with control assembly, and control assembly is connected with dosing device, so that control assembly controls dosing device according to video recognition system signal.The utility model uses video recognition system to replace ORP controller, without accurate control wastewater pH value.

The invention discloses a bismuth-based nanofiber photocatalytic material as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic materials. The material is prepared by taking bismuth as a matrix and introducing vanadium, halogen or molybdenum elements through an electrostatic spinning and staged calcining process. The obtained material is of a three-dimensional nanofiber membrane structure, has a high specific surface area and excellent visible light response characteristics, can synchronously and efficiently photocatalytically degrade organic pollutants in electroplating wastewater and reduce and fix heavy metal ions, is easy to separate and recover, has good cycle stability, and is suitable for industrial production. And an efficient and green technical scheme is provided for deep treatment of the electroplating wastewater.

The application relates to the technical field of sampling devices, and specifically discloses a sampling device for electroplating wastewater, which comprises an adjusting tank, water outlets are communicated with the upper, middle and lower liquid surfaces of the adjusting tank, water valves are arranged at the ends of the water outlets close to the upper, middle and lower liquid surfaces of the adjusting tank, sampling pipes are communicated with the ends of the water outlets away from the adjusting tank, sampling valves are arranged on the sampling pipes, sampling boxes are arranged at the ends of the sampling pipes away from the water outlets, sampling mechanisms are arranged in the sampling boxes, the water valve at the upper liquid surface of the adjusting tank is opened, the sampling valve is opened, the electroplating wastewater can flow into the sampling pipes through the water outlets, the sampling mechanisms can respectively sample the electroplating wastewater at the upper, middle and lower liquid surfaces of the adjusting tank, and the samples can be stored in the sampling boxes, and then the sampling of the middle and lower liquid surfaces is sequentially carried out after the sampling is completed, so that the electroplating wastewater in the adjusting tank is subjected to layered sampling, the accuracy and comprehensiveness of the samples are improved, and the process control accuracy is improved.

The application belongs to the technical field of electroplating wastewater treatment, and particularly relates to a method and device for treating electroplating wastewater by electrolysis-oxidation coordination. The electroplating wastewater is adjusted and matched to obtain pretreated wastewater, and the electroplating wastewater contains heavy metal elements; the pretreated wastewater is separated by a charged nanofiltration membrane to obtain complex heavy metal wastewater and ionic heavy metal wastewater; the complex heavy metal wastewater is treated by ozone oxidation to obtain oxidized wastewater, and the oxidized wastewater is treated by first diaphragm electrolysis to recover heavy metals; and the ionic heavy metal wastewater is treated by second diaphragm electrolysis to recover heavy metals. The application realizes efficient separation and resource recovery of copper and nickel in the electroplating wastewater, and combines electroplating wastewater treatment and resource recovery, thus having a wide application prospect.

The utility model relates to the technical field of electroplating wastewater recovery, in particular to a wastewater recovery device for electroplating equipment, which comprises a plate-and-frame filter press, a water inlet pipe, a first water outlet pipe, an activated carbon filter box and an activated carbon adsorption plate, the water inlet pipe is arranged on the plate-and-frame filter press, and the side surface of the plate-and-frame filter press is communicated with the activated carbon filter box through the first water outlet pipe; an activated carbon adsorption plate is arranged in the activated carbon filter box. The electroplating equipment wastewater recovery device integrates multi-stage treatment means of carrying out primary solid-liquid separation by the plate-and-frame filter press, adsorbing organic pollutants and part of heavy metals by the activated carbon filter box, removing residual heavy metals by the ion exchange tank and the like, and provides an integrated, efficient and economical solution; according to the method, heavy metal ions and organic pollutants in the electroplating wastewater can be more effectively removed, the treatment period is shortened, and the use amount of chemical agents is reduced, so that the treatment cost is reduced, and meanwhile, the environmental friendliness of the treatment process and effective recycling of resources are ensured.

The present application relates to the technical field of wastewater treatment, and specifically discloses a recycling device for treating electroplating wastewater, comprising a stirring mechanism, a dosage regulating mechanism, a buffer mechanism, a separation mechanism, and a post-processing mechanism. When the electroplating wastewater in the liquid storage tank enters the treatment tank, the dosage regulating mechanism will detect the metal ion concentration in the electroplating wastewater, and add an appropriate amount of precipitant according to the size of the metal ion concentration. At this time, the stirring mechanism stirs the electroplating wastewater in the stirring zone, so that the precipitant generates precipitation. The precipitation located at the bottom of the stirring zone will enter the buffer zone, and after being buffered by the buffer mechanism, it reaches the static zone, forming a distribution of upper clear liquid and lower precipitate. The separation mechanism filters the upper clear liquid and pushes the precipitate out of the treatment tank from the bottom of the treatment tank, thereby realizing the separation of the upper clear liquid and the lower precipitate, thereby realizing the recovery of metal ions in the electroplating wastewater and improving the quality of wastewater treatment.

This utility model discloses a device for efficiently removing COD from electroplating wastewater, relating to the field of electroplating wastewater treatment technology. It includes a base with a reaction tank fixedly connected to the top. The beneficial effects of this utility model are as follows: Oxidizing agents or coagulants from the storage tank can be input into the spray tank via a delivery pipe and a pump. While the stirring rollers rotate, the oxidizing agents or coagulants are continuously sprayed into the reaction tank through the spray tank, causing the wastewater to react uniformly. This destabilizes and coagulates the tiny suspended particles, colloids, and some dissolved organic matter in the wastewater into larger flocs. Through the coordinated operation of the air inlet pipe, jet nozzle, and air pump, the reaction tank is continuously injected with air. The air bubbles adsorb the coagulated flocs, and the upward force of the gas causes the flocs to float on the wastewater surface. Finally, a scraper removes the flocs into the storage tank.

The utility model discloses an electroplating wastewater treatment pond, which relates to the technical field of electroplating wastewater treatment and comprises a wastewater pond and a movable stirring mechanism, and the stirring mechanism comprises a scraping frame, a rotating shaft, a stirring rod, a portal frame, an air blower and a medicament barrel; the scraping frame is positioned in the wastewater pool and is attached to the inner wall of the wastewater pool; the number of the rotating shafts is two, and the two ends of each rotating shaft are of an open hollow structure. The two rotating shafts are vertically arranged in the scraping frame, the stirring rods are longitudinally arranged on the outer walls of the rotating shafts, the stirring rods on the two rotating shafts are arranged in a staggered mode, and the upper ends of the rotating shafts penetrate through the portal frame and are rotationally connected with the portal frame; the air blower and the medicament barrel are both located above the portal frame, and a filter pipe is arranged at the output end of the air blower; the reaction speed of the additive and pollutants in the electroplating wastewater is increased, the reaction liquid contact surface in the tank body is effectively increased, the treatment efficiency of the electroplating wastewater is improved, and dirt and impurities attached to the inner wall of the wastewater tank are easy to treat.

The application relates to the technical field of electroplating wastewater treatment, and particularly discloses a pretreatment device applied to an electroplating wastewater treatment equipment, which comprises a supporting mechanism, a wastewater treatment mechanism, a water pumping mechanism and a screw rod driving mechanism are arranged on the supporting mechanism respectively; the water pumping mechanism and the screw rod driving mechanism are arranged on the two sides of the wastewater treatment mechanism respectively. The electroplating wastewater can be accommodated in the treatment tank in the wastewater treatment mechanism, the wastewater can be injected into the treatment tank through a water inlet interface, and the medicament can be injected into the treatment tank through a feeding interface, so that the heavy metal ions are removed and the acid-base solution is added; the rotation of the stirring shaft driven by the stirring motor can make the stirring blades stir the mixed solution of the wastewater and the medicament, so that the reaction effect is improved; after the stirring is completed, the precipitation and the layered treatment of the treated water are carried out through standing.

The application relates to the technical field of wastewater treatment, in particular to a plating wastewater treatment equipment and a treatment method, which comprises a concrete bottom plate prefabricated on the ground, a plurality of bottom beams are fixedly installed on the concrete bottom plate through bolts, a plurality of stand columns are fixedly installed on the bottom beams through bolts, and two limiting strips are arranged on the same side of the stand columns; a limiting groove is formed between the two limiting strips, an assembly plate body is clamped in the limiting groove, the limiting strip comprises a fixed part fixed on the stand column and a rotating part arranged at the lower end, the rotating part is rotationally connected to the fixed part, the rotating part abuts against the assembly plate body in the limiting groove, the length of the rotating part is the same as the height of the assembly plate body, when the rotating part no longer limits the lowermost assembly plate body, the corresponding assembly plate body is taken out from the position corresponding to the lowermost rotating part, and the upper assembly plate body is pushed to move downwards. The application has the effect of conveniently replacing the assembly plate body.

The application provides a metal recovery device in electroplating wastewater, and relates to the technical field of electroplating wastewater treatment.The metal recovery device comprises a recovery tank, at least one storage cylinder assembly and two barrier agitation structures.The recovery tank is respectively provided with an inlet end and an outlet end on both sides, and a recovery discharge part is arranged at the center of the bottom wall.Two symmetrical material guiding slopes are arranged on the inner bottom wall.The barrier agitation structures are slidably arranged on the upper frame body, and are driven by an agitation driving assembly to move synchronously and reversely.The barrier agitation structures trigger flocculating agent feeding and agitate waste liquid synchronously when moving below the storage cylinder assembly.The bottom of the barrier agitation structures contacts with the material guiding slopes to form a barrier when moving to both ends of the recovery tank.The metal recovery device realizes linkage of intermittent flocculating agent feeding and waste liquid agitation through reciprocating movement of the barrier agitation structures, and automatically blocks metal precipitates when discharging liquid, so that the metal recovery rate and the precipitate collection efficiency are effectively improved, and the structure is compact and convenient to operate.

This invention discloses a nitrogen-sulfur co-doped multi-chamber carbon-supported copper nanocluster composite material and its preparation method. By integrating polyether F127, 2,6-diaminopyridine, sodium dodecylbenzenesulfonate, fulvic acid, and copper acetate (II), a semi-open and surface-fully embedded copper cluster multi-chamber carbon was successfully constructed. The surface of this multi-chamber carbon is rich in -NH2 and -SO3. ‑ With abundant active groups, it not only boasts a large specific surface area and ample adsorption sites, but also exhibits excellent anti-interference and wide pH adaptability. As an environmentally friendly material, it can simultaneously and efficiently adsorb and remove Cu²⁺ from electroplating wastewater. + Ni² + Pb² + Cd² + It contains heavy metals and organic complexing agents such as ethylenediaminetetraacetic acid (EDTA) and hydroxyethylidene diphosphonic acid (HEDDI). After electroplating wastewater treatment, it achieves convenient solid-liquid separation and recovery through centrifugation and filtration. After acid washing and alcohol washing regeneration, it exhibits excellent cycle stability. With its superior purification efficiency and recycling advantages, it has shown promising development potential in the field of electroplating wastewater treatment.

The utility model relates to the technical field of wastewater treatment equipment, in particular to electroplating wastewater treatment equipment which comprises a cage lifting grating, an adjusting box, a cyanide breaking reaction tank and a comprehensive adjusting tank, a lifting cage grating is placed on the inner wall of the adjusting box through a hook, one side of the adjusting box is connected with a cyanide breaking reaction tank through a water pump and a water pipe, and one side of the cyanide breaking reaction tank is connected with a comprehensive adjusting tank through a water pump and a water pipe. According to the electroplating wastewater treatment equipment, it is ensured that the SDI value can meet the water inlet requirement of the DTRO filter through the multi-medium filter, a reducing agent and an antisludging agent are added into the pipeline mixer, it is ensured that no residual chlorine enters the DTRO filter, it is ensured that no particulate matter larger than 5 micrometers enters the DTRO filter through the security filter, wastewater is fed into the DTRO filter through the plunger pump, and COD, COD and the DTRO filter are subjected to chemical vapor deposition. Pollutants such as heavy metals are separated and removed under the action of the semipermeable membrane, so that the electroplating wastewater treatment equipment performs automatic treatment.

The utility model discloses a waste liquid treatment device and relates to the technical field of electroplating wastewater treatment. The waste liquid treatment device comprises a waste liquid tank, a resin device, an acid tank and an alkali tank. The waste liquid tank is used for accommodating waste liquid; the resin device is provided with a containing cavity, the containing cavity is filled with ion exchange resin, the waste liquid tank is connected with the resin device through a first pipeline, and when a first valve of the first pipeline is opened, waste liquid can flow into the containing cavity. The acid tank is used for containing an acid solution, the acid tank is connected with the resin device through a second pipeline, and when a second valve of the second pipeline is opened, the acid solution can flow into the containing cavity; the alkali tank is used for containing an alkali solution, the alkali tank is connected with the resin device through a third pipeline, and when a third valve of the third pipeline is opened, the alkali solution can flow into the containing cavity. By adopting the technology provided by the utility model, the treatment efficiency can be effectively improved, and the generation of solid wastes can be avoided.

The application discloses the technical field of electroplating wastewater treatment high-value metal recovery system for electroplating wastewater, including electrolytic cell and electrolytic mechanism, electrolytic cell is connected with infusion tube, infusion tube is connected with electronic flowmeter, electrolytic cell top is detachably connected with cover body, cover body is provided with observation ring groove, cover body is fixedly connected with camera unit; The inside lower side of the electrolytic cell is provided with a sedimentation plate and a stirring unit, the sedimentation plate is in sliding fit with the inner side wall of the electrolytic cell, the bottom of the electrolytic cell is fixedly connected with a first weighing sensor, and the detection end of the first weighing sensor is in abutment with the bottom of the sedimentation plate; The electrolytic mechanism includes a controller, a driving unit, an adjusting unit and an electrolytic unit. The application reduces the generation of concentration polarization and activation polarization phenomenon in the process of electroplating wastewater metal treatment and recovery, recovers the wastewater metal in an efficient state, estimates the treatment and recovery effect of the wastewater metal, and improves the qualified rate of wastewater metal treatment and recovery.