226 results about "Wastewater reuse" patented technology

The invention provides a zero-discharge treatment process for recycling production wastewater, and relates to the technical field of water treatment and recycling, and the zero-discharge treatment process comprises the following steps: S1, oxidizing and degrading COD through ozone and a Fenton reagent, and generating a flocculatable intermediate; s2, intercepting suspended matters by using a gradient aperture filter bed in a grading manner, and monitoring a dynamic membrane resistance coefficient delta Rm in real time to automatically trigger backwashing; s3, coupling an ultrafiltration reverse osmosis membrane to realize that the organic matter rejection rate eta is greater than or equal to 98%, and synchronously regulating and controlling flux and operation pressure by an online spectrometry; s4, regulating and controlling the current density by adopting a rotational flow electric flocculation reactor for directional crystallization to produce industrial salt with Cl <-> less than or equal to 50mg / L; and S5, based on the total dissolved solid recovery rate TR and the comprehensive energy consumption, establishing a multi-target optimization model for real-time parameter adjustment. According to the method, a membrane pollution early warning and backwashing dynamic response mechanism is constructed through cross-scale cooperative regulation and control of delta Rm and the retention rate eta, and a catalytic oxidation effect strengthening and electric crystallization parameter self-tuning technology is combined, so that the problem of cooperative optimization of high-salinity wastewater salt gradient separation and pollutant deep removal is solved.

The invention belongs to the technical field of recycling of oily wastewater in water treatment, and provides a high-oil-content emulsified wastewater treatment process based on electrochemistry. Oil-containing wastewater enters the pretreatment unit, oil slick and suspended substances in water are removed through the pretreatment processes of filtration, air floatation, pH adjustment and the like, and the pH is adjusted to a proper range; the reacted oily wastewater enters an electrochemical device, and proper voltage is applied to an electrode, so that emulsified oil in the water is destabilized, and the purpose of demulsification is achieved; the oily wastewater enters an oil-water separation device, demulsified oil drops are coalesced, grow and float upwards, and recoverable oil is obtained on the upper layer of the device; after long-time operation, the water enters the regeneration unit, so that the electrochemical demulsification unit recovers good demulsification and oil removal effects. According to the invention, the treatment of various high-oil-content emulsified wastewater and the recovery of oil can be realized by regulating and controlling the voltage, and the method is suitable for electro-desalting wastewater, machining wastewater, cold rolling wastewater and the like.

The invention belongs to the technical field of membrane separation, and particularly relates to a method for preparing a high-flux hollow fiber nanofiltration membrane based on interfacial polymerization, the obtained membrane and application. The method comprises the following steps: firstly, carrying out pre-adsorption treatment on a polyethersulfone hollow fiber ultrafiltration base membrane through a polyethyleneimine aqueous solution to form a reactive anchoring layer; then sequentially dipping in an aqueous phase solution containing piperazine, sodium phytate and nanoscale cellulose whiskers and an organic phase solution containing trimesoyl chloride and 5-isocyanate isopeptide acyl chloride for interfacial polymerization; and finally, carrying out heat treatment on the obtained primary composite membrane, and completing a gas-phase cross-linking reaction in a glutaraldehyde steam atmosphere. According to the method, the hollow fiber nanofiltration membrane with high flux, high selectivity, excellent chlorine resistance and pollution resistance is successfully prepared through a multi-stage strengthening process, and the hollow fiber nanofiltration membrane is suitable for the fields of drinking water purification, industrial wastewater reuse, material separation and the like.

The invention discloses a sewage reuse system and method. The system comprises a sewage collection module, a pretreatment module, an advanced treatment module, a water quality monitoring module, an intelligent regulation and control module, a reuse distribution module, a sludge treatment module and a medicament management module, by arranging the sewage collection module, the pretreatment module, the advanced treatment module and the like, graded purification treatment of sewage is achieved, dynamic optimization of the treatment process is achieved in combination with the water quality monitoring module and the intelligent regulation and control module, and the sewage treatment efficiency and the water quality stability are improved. The reuse distribution module realizes multi-path reasonable utilization of standard sewage, the sludge treatment module realizes resource utilization of sludge, and the agent management module guarantees accurate addition and stable supply of agents.

The invention discloses a 2, 4, 5-trifluorophenylacetic acid hydrolysis wastewater reuse device and process, and relates to the technical field of wastewater reuse, the 2, 4, 5-trifluorophenylacetic acid hydrolysis wastewater reuse device comprises a sewage treatment tank, the top of the sewage treatment tank is fixedly provided with a water inlet pipe, the bottom of the sewage treatment tank is fixedly provided with a water outlet pipe, and the inner wall of the sewage treatment tank is slidably provided with a filter plate; a feeding box is fixedly mounted at the top of the sewage treatment tank, and a discharging pipe is arranged at the bottom of the feeding box; the wastewater treatment device is arranged in the sewage treatment tank, the wastewater treatment device comprises a motor, a reciprocating screw rod, stirring blades, a moving frame, an L-shaped rod, a supporting plate, an elastic telescopic rod, an arc-shaped plate, a guide plate, a short rod, a rotating plate and a limiting plate, the motor rotates to drive the reciprocating screw rod to rotate, the reciprocating screw rod rotates to drive the stirring blades to rotate, and the stirring blades can rotate to drive the moving frame to move; the waste residue is prevented from adhering to the inner wall of the sewage treatment tank to reduce the reaction efficiency and affect the wastewater treatment and recovery efficiency.

The invention discloses a method for cooperatively controlling biological pollution of a reverse osmosis membrane by group quenching bacteria and bacteriophages. According to the invention, a QQ-bacteriophage carrying system composed of quorum quenching (QQ) bacteria and lysing bacteriophages is constructed, and the bacteriophages and the QQ bacteria are utilized to synergistically improve the inhibition effect on biofilm formation and biological pollution. In the QQ-bacteriophage carrying system, the bacteriophage can perform targeted lysis on core contaminating bacteria, and the QQ bacteria can degrade quorum sensing molecules, weaken an anti-bacteriophage defense system of the bacteria and promote movement and infection of the bacteriophage in a biological membrane. Therefore, the QQ-bacteriophage carrying system can remarkably improve the biological membrane removal efficiency, recover the membrane flux and prolong the service life of the reverse osmosis membrane. The invention can provide an efficient, green and sustainable biological pollution control solution for the fields of water treatment, seawater desalination, industrial wastewater reuse and the like.

The invention relates to the technical field of rare earth metal separation, and particularly discloses a praseodymium neodymium oxide separation and purification process and a regeneration system. The process comprises the following steps: after H2S is subjected to impurity removal and filtration, carrying out multi-stage counter-current extraction by adopting a P507 / TRPO synergistic extraction organic phase, carrying out graded reverse extraction on praseodymium by HCl, and carrying out reverse extraction on neodymium by HNO3; the regeneration system comprises a wastewater treatment unit and an organic phase regeneration unit, wastewater is recycled through neutralization precipitation, precision filtration and reverse osmosis, and an organic phase is subjected to alkali washing, acid activation and 4A molecular sieve dehydration circulation. The praseodymium-neodymium separation coefficient reaches 2.0-2.2 through synergistic extraction, and the stage number is reduced by 40%; the double regeneration systems reduce the organic phase loss to be less than or equal to 2% and the wastewater reuse rate to be greater than or equal to 92%; the purity of the prepared neodymium oxide is greater than or equal to 99.99% and Fe is less than or equal to 10ppm. According to the method, the extraction efficiency is remarkably improved, the service life of an organic phase is multiplied, the product purity breaks through the limit, near-zero wastewater discharge is closed, the whole process stability is guaranteed, and the resource utilization rate is maximized.

The utility model relates to the technical field of construction wastewater treatment, and discloses a construction wastewater recycling device which comprises a water inlet tank, a through groove is formed in the left side of the water inlet tank, a guide plate is fixedly connected to the bottom of the through groove, a residue filtering mechanism is arranged on the left side of the guide plate, and a supporting frame is fixedly connected to the bottom of the water inlet tank. And the residue filtering mechanism is rotationally connected to the supporting frame, a residue discharging box, a residue discharging plate and a drainage plate are sequentially arranged on a base of the residue filtering mechanism from left to right, and a vibration assembly is connected to the top of the drainage plate. According to the device, through mutual cooperation of a residue filtering mechanism and a vibration assembly, building waste water firstly passes through a second filtering cylinder to separate a water body from building waste residues, the building waste residues fall into a residue discharging box and a residue discharging plate according to the specification of the building waste residues, meanwhile, the waste water is filtered and flows into a water discharging plate, and the vibration assembly is used for driving a movable plate area to generate micro-amplitude vibration; the flowing of wastewater is smoother, and the drainage residence time is reduced.

The invention discloses a circulating water blow-off water reuse treatment system, and relates to the field of circulating cooling water treatment, the system comprises: an induced crystallization unit, which is used for carrying out primary treatment on circulating water blow-off water through an induced crystallization fluidized bed reactor to remove hardness ions in water; the ceramic membrane filtering unit is used for carrying out secondary treatment on the primarily treated water by utilizing a ceramic membrane device and removing residual hardness ions, organic matters and suspended matters in the water; and the nanofiltration membrane unit is used for performing tertiary treatment on the water by utilizing a nanofiltration membrane according to the secondary treatment result to remove salt and organic matters in the water. According to the method, induced crystallization, ceramic membrane and nanofiltration membrane technologies are combined to cooperatively treat the circulating water and the blow-down water, so that the operation mode of simplifying the process, reducing the energy consumption and prolonging the backwashing period is realized, the dosage of chemicals and the generation of sludge are reduced, and the water recovery rate is also improved, so that the hardness is removed, and the calcium resource recovery is realized.

A wastewater recycling device for a hydrogen fluoride production line is characterized in that a water outlet of a recycling water tank is connected to a spiral humidifying distributor through a connecting pipeline, the recycling water tank is sequentially provided with a primary reaction tank, a primary sedimentation tank, a secondary reaction tank, a secondary sedimentation tank and a fluorine removal agent adding tank from top to bottom, the primary reaction tank is located at a water inlet of the recycling water tank, and the secondary reaction tank is located at a water outlet of the recycling water tank. The first-stage reaction tank is communicated with the first-stage sedimentation tank, the first-stage sedimentation tank is communicated with the second-stage reaction tank, the second-stage reaction tank is communicated with the second-stage sedimentation tank, and the second-stage sedimentation tank is connected with the spiral humidification distributor through the fluorine removal agent adding tank. The wastewater recycling device for the hydrogen fluoride production line has the beneficial effects that the wastewater recycling device for the hydrogen fluoride production line can realize all recycling of production wastewater of hydrogen fluoride production enterprises, not only solves the problems that gypsum slag is easy to raise dust in the loading process due to high temperature and small granularity and dangerous wastes are avoided, but also realizes zero discharge of the production wastewater of the hydrogen fluoride production enterprises; and the unorganized emission of dust is reduced.

The invention discloses a high-water-permeability anti-pollution reverse osmosis membrane and a preparation method thereof, and belongs to the technical field of water treatment membranes. The reverse osmosis membrane comprises a porous support layer, a polyamide separation layer and a composite anti-pollution functional layer, and the composite anti-pollution functional layer is composed of a polyvinyl alcohol matrix and a nanoscale water channel material uniformly dispersed in the polyvinyl alcohol matrix. Comprising the steps of coating liquid preparation, base membrane pretreatment, composite functional layer construction, cross-linking and curing, a rapid transmission path is provided for water molecules by introducing a nanoscale water channel material, the water flux of the reverse osmosis membrane is greatly improved on the premise that the excellent pollution resistance of a PVA coating and the high selectivity of the membrane are kept, and the service life of the reverse osmosis membrane is prolonged. The technical problem that the membrane flux is severely reduced due to a traditional PVA coating is solved, and the method has wide application prospects in the fields of seawater desalination, brackish water desalination, ultrapure water preparation, wastewater reuse and the like.

The invention discloses a high-weather-resistance resin production process, and belongs to the technical field of high polymer material synthesis. The production process comprises the following steps: preparing an acrylic monomer, an emulsifier and an initiator according to a specific ratio, forming a pre-emulsion, performing staged normal-pressure polymerization, controlling the dropwise adding time and temperature, reacting, and performing condensation reflux and acid-base adsorption to obtain the product. Wastewater recycling needs to collect washing wastewater of the reaction kettle, the wastewater is subjected to multi-stage filtration, flocculent precipitation and precise filtration, the water quality is detected, and qualified water is reused for next-batch production. By optimizing the monomer ratio and the polymerization process, the weather resistance of the acrylic resin is remarkably improved, and the requirements of high-end coatings are met; meanwhile, through systematic wastewater recycling, fresh water consumption and wastewater discharge are greatly reduced, the resource utilization rate is increased, and environmental pollution is reduced. The technical treatment process is closely linked with production, the cost is low, and the method is suitable for large-scale continuous production and has both economic and environmental benefits.

The utility model provides a printing and dyeing wastewater recycling device, and belongs to the technical field of printing and dyeing wastewater recycling. The printing and dyeing wastewater recycling device comprises a tank body, a cavity is formed in the tank body, a water inlet is formed in the left side of the tank body, a pressure pump is mounted on the surface of the water inlet, an automatic dosing mechanism comprises a sliding rail, a dosing box, a rotating cavity and a passing cavity, and the sliding rail is fixedly mounted at the top of the inner wall of the cavity. The automatic dosing mechanism is arranged, the booster pump is started, waste water is pumped into the tank body, the dosing box is arranged on the side, close to the water inlet, in the tank body, so that the waste water impacts the dosing box, medicine powder neutralized with the waste water is stored in the inner cavity of the dosing box, the dosing box vibrates through the impact force of the waste water, and the medicine powder is fully added into the tank body. And the medicine powder in the inner cavity of the medicine adding box falls into the rotating cavity after passing through the passing cavity and is neutralized with the wastewater, so that manual medicine adding is not needed.

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 utility model discloses a railway tunnel engineering construction period production wastewater filter pressing treatment device which comprises a horizontal flow type adjusting oil separation precipitation drying water tank, the water inlet end of the horizontal flow type adjusting oil separation precipitation drying water tank is communicated with the water outlet end of a primary sedimentation tank, and the water outlet end of the horizontal flow type adjusting oil separation precipitation drying water tank is communicated with a filter pressing device. The filter pressing device is used for carrying out filter pressing filtration on wastewater in the filter chamber, a washing mechanism for carrying out back washing on filter cloth is further arranged in the filter pressing device, the filter pressing device comprises a main beam, the main beam serves as an assembly foundation of the filter pressing device, a thrust plate for providing filter pressing counter force is arranged at the position of the main beam, a feeding port is formed in the thrust plate, and a discharging port is formed in the feeding port. And the feeding hole is connected with each filter chamber in series. The filter pressing treatment device for the production wastewater in the railway tunnel engineering construction period is high in automation degree, low in investment and operation cost, simple to maintain and manage and capable of being repeatedly transferred to be installed and used, and wastewater reuse and sludge recovery are completed at the same time.

The invention relates to the field of environmental engineering and technology, and discloses a coprocessing method for coking wastewater based on MBR (membrane bioreactor) technology, which sequentially comprises the steps of pretreatment, biological enhancement treatment, nitrogen and phosphorus removal treatment, sludge regulation and control treatment, membrane pollution control treatment and circular treatment, and comprises the following steps: introducing coking wastewater into a grating and a grit chamber; performing pretreatment to remove large-particle impurities; in the biological enhancement and nitrogen and phosphorus removal stage, a microbial agent is added to regulate and control the reaction environment so as to improve the pollutant degradation efficiency; accurate management and control of sludge performance and membrane pollution are realized by using an online monitoring technology; finally, sludge, cleaning wastewater and the like generated in all links are collected in a classified mode, the sludge is subjected to resource utilization after stabilization treatment, the cleaning wastewater is reused in the pretreatment stage, and a closed-loop treatment system is formed; through the steps, the problems of incomplete removal of COD (Chemical Oxygen Demand) and ammonia nitrogen, low removal rate of total nitrogen and total phosphorus, sludge bulking, fast membrane pollution and high risk of secondary pollution in the traditional process are effectively solved.

The invention relates to the technical field of chromium-containing wastewater treatment, and discloses a chromium-containing coating waste liquid and sludge treatment and wastewater recycling system which comprises a chromium-containing waste liquid storage tank, a tail gas absorption tower, an acidification reduction tank, a neutralization tank, a sludge dewatering machine, a sludge drying machine and a spray cooling tower which are connected through pipelines, the acidification reduction tank is connected with a chemical adding control module and a reducing agent liquid preparation tank, the spray cooling tower is connected with the reducing agent liquid preparation tank through a pipeline, high-temperature cured resin is ground through the grinding pump, the problem that Cr < 6 + > is wrapped in large-particle resin and is difficult to be thoroughly reduced is avoided, and the production efficiency is improved. Meanwhile, the acidification reduction tank is connected with the tail gas absorption tower, SO2 gas released in the acidification process is absorbed, direct emission is avoided, the spray cooling tower and the sludge dewatering machine are connected with the sludge drying machine, and hot steam generated by the sludge drying machine can be subjected to spray cooling through filtrate of the sludge dewatering machine; and meanwhile, the mixed filtrate is recycled.

The invention discloses a method for recycling process water in an APT (ammonium paratungstate) production process, and relates to the field of water recovery in an APT production process, and the method comprises the following steps: S1, recycling wastewater of an alkali extraction system; s2, evaporating strip liquor and recovering ammonia water; s3, chemical treatment of pure ammonium tungstate evaporation ammonia water; s4, ammonium molybdate evaporation ammonia water closed-loop utilization; and S5, recycling ammonia gas in a crystallization section. According to the method, the recovery rate of tungsten and molybdenum in the tail liquid is remarkably increased by optimizing the processes of wastewater reuse of the alkali extraction system, strip liquor evaporation, ammonia water recovery and the like; one part of the tail liquid is recycled in the pulping process, the other part of the tail liquid is subjected to evaporation treatment, zero emission of wastewater is achieved, evaporated condensate water can be recycled to be used for preparing a stripping agent, the utilization rate of water resources is further increased, the production cost is reduced, and meanwhile the environment-friendly requirement is met.

The invention provides an intelligent regulation and control flue gas denitration and desulfurization system, and relates to the field of flue gas denitration and desulfurization. The intelligent regulation and control flue gas denitration and desulfurization system comprises a flue gas inlet, a pretreatment module is arranged at the output end of the flue gas inlet, and a denitration system C and a desulfurization system D are arranged at the two output ends of the pretreatment module. According to the system, flue gas is sequentially treated through the flue gas inlet, the pretreatment module, the denitration system C and the desulfurization system D, data intercommunication and cooperative regulation and control of all links are achieved through the intelligent management and control platform, the system is different from a traditional denitration-desulfurization independent operation mode, the removal efficiency is improved by 5%-10%, and the energy consumption is reduced. Meanwhile, a denitration waste catalyst is recycled through a resource recycling system, desulfurization waste water is subjected to zero-discharge treatment to achieve gypsum high-valued treatment and waste water recycling, the comprehensive utilization rate of solid waste is larger than or equal to 90%, the treatment cost is reduced by 30% compared with a traditional process, and a digital twin engine (the running state of a real-time mirroring physical system supports virtual debugging of process parameters) is adopted.

The invention provides a PTA wastewater treatment method, which comprises: carrying out biodegradation treatment and membrane separation treatment on to-be-treated PTA wastewater, carrying out adsorption treatment through an adsorption resin, and carrying out ultrafiltration and reverse osmosis treatment, wherein the adsorption resin is formed by compounding zeolite and a polymer, and is obtained by the following method: uniformly mixing zeolite, styrene, divinylbenzene, an initiator, a pore-foaming agent and 3-methyl-5-vinylpyridine to obtain an oil phase; uniformly mixing water and a dispersing agent to obtain a water phase; and uniformly mixing the oil phase and the water phase, stirring, and carrying out polymerization reaction to obtain the adsorption resin. According to the PTA wastewater treatment method disclosed by the invention, a physical process and a biochemical process are combined, so that pollutants such as bromide ions can be effectively removed, and the wastewater recycling requirement is met.

The invention discloses a concrete mixing wastewater recycling treatment device, and relates to the technical field of wastewater treatment.The concrete mixing wastewater recycling treatment device comprises a bottom plate, a rotating rod is arranged in a reaction box, stirring blades are arranged on the rotating rod, a filter box is arranged on the side, penetrating out of a treatment box, of the reaction box, and a wastewater pipe is arranged on the outer side wall of the treatment box; one end of the wastewater pipe penetrates into the treatment box and is provided with a water inlet pipe, the flocculation assembly comprises a support arranged on the bottom plate and a flocculation cylinder arranged on the support, a top cover is arranged at the top of the flocculation cylinder, a connecting rod is arranged at the bottom of the top cover, a movable plate slides along a limiting groove, and the movable plate is matched with a rotating frame to rotate around the rotating frame. According to the device, the adjustment of the filtering aperture is realized, the mixing speed of chemicals is higher, subsequently collected solid wastes are directly recycled for concrete production, the waste of resources is avoided, the adjustment of the filtering aperture of the treatment device is realized, and the normal operation of wastewater recycling is ensured.

This invention provides an automatic filter media filling system, comprising a filter media feeding and cleaning module, a filter media spraying module, and a wastewater sand removal and reuse module. The filter media feeding and cleaning module includes a filter media feeding device, a filter media rinsing and adding device, a raw water tank, and a delivery pump. The filter media rinsing and adding device includes a filter media temporary storage device, a filter media rinsing device, and a jet sand suction device. The filter media spraying module includes a filter media nozzle, a rotating device, and a filter media filling information acquisition device. The outlet of the raw water tank is connected to the inlet of the delivery pump, the outlet of the delivery pump is connected to the working fluid inlet of the jet sand suction device, and the mixing outlet of the jet sand suction device is connected to the filter media nozzle. The automatic filter media filling system provided by this invention can achieve automatic cleaning and filling of filter media, improving filling efficiency and quality, reducing labor intensity and labor costs, while simultaneously enabling wastewater reuse and reducing water resource waste.

This invention belongs to the field of wastewater treatment technology, specifically relating to a method for treating wastewater from industrialized aquaculture. This invention combines physical, biological, and chemical treatment methods, enabling efficient wastewater treatment in a short time, reducing the footprint and operating costs of treatment equipment, and exhibiting high economic efficiency and practicality. The combined use of Spirulina with Bacillus licheniformis, Bacillus subtilis, and Micrococcus luteus forms a stable algae-bacteria symbiotic system in the aquatic environment, accelerating the removal of nitrogen and phosphorus from the aquaculture wastewater and effectively reducing the chemical oxygen demand (COD). After treatment using this method, the wastewater reuse rate is no less than 80%, and the treated wastewater quality meets national discharge standards.

This invention provides a photocatalytic treatment device and method for treating yellow water. The photocatalytic treatment device includes, in sequence, an ammonia stripping and collection chamber, a reaction crystallization chamber, a columnar adsorption chamber, a photocatalytic reaction chamber, an anoxic conversion chamber, and an aerobic separation chamber. The treatment device first adds a denitrification aid during aeration, improving stripping efficiency. The stripped ammonia is recovered and reused, avoiding secondary pollution. Second, a mixed packing material of biochar and magnesium oxide is used to recover nutrients such as nitrogen and phosphorus from urine through physical adsorption and chemical precipitation. Finally, the treatment device provided by this invention has a simple structure, is easy to install and operate, and simultaneously achieves wastewater reuse, reaching the goal of zero wastewater discharge and conserving water resources.

The application discloses a kind of red mud gradient depth purification-rare earth-radioactivity synergistic target purification method, by " hierarchical pretreatment and microwave modification→three-stage gradient dealkalization→rare earth-radioactivity synergistic target purification→full quantization recycling" four-stage integrated process, realize red mud harmless and high-value utilization.The three-stage gradient dealkalization uses microwave-CO2-biological synergic system, after dealkalization pH≤8.0, Na2O content<1%;Rare earth-radioactivity purification is extracted by HDES and coupled with multi-ligand magnetic material system, light rare earth recovery rate≥95%, middle heavy / rare earth recovery rate≥90%, U / Th removal rate≥95%;Full quantization recycling realizes red mud total utilization rate≥98.5%, wastewater reuse rate≥95%, every ton of red mud fixed CO2≥0.2 tons.The application is suitable for various high-alkali, containing radioactive and rare earth red mud treatment, with environmental benefits and economic benefits.

The invention discloses a wax mold cleaning wastewater recycling process, which belongs to the technical field of wastewater treatment. The invention comprises the following steps: collecting the wax mold cleaning wastewater in a first water collection tank, then injecting it into a cooling tower through a water pump for cooling, injecting sewage in the cooling tower into an air flotation machine, separating wax and water through the air flotation machine to obtain floating wax and pre-treated wastewater, and the pre-treated wastewater enters a second collecting tank; adding caustic soda flakes and slaked lime to the second collecting tank to adjust pH, then adding an enhanced water treatment agent, stirring and mixing for 30-60 minutes, standing for 1-2 hours, and then transporting the precipitate to a filter press through a pipeline, and returning the clear liquid to a production line for reuse. The wax mold cleaning wastewater recycling process provided by the invention effectively treats the wastewater, has a high resource utilization rate, does not generate secondary waste liquid, saves production costs and management expenses, and has high application value in enterprises.

The utility model discloses a wastewater recycling device of an environment-friendly scouring and bleaching machine, and relates to the technical field of wastewater treatment. Comprising a fixing box, a water inlet pipe and a water outlet pipe are arranged on the outer side of the fixing box, a stirring piece and a filtering piece are arranged in the fixing box, and the water outlet pipe is communicated with the filtering piece; and the heat dissipation mechanism is arranged in the fixed box and used for absorbing heat of the waste water, and the heat dissipation mechanism comprises a supporting piece and a heat exchange piece. Through the arrangement of the flow guide piece, the supporting piece and the heat exchange piece, the fixing barrel, the first flow guide pipe, the second flow guide pipe, the fixing rod, the connecting disc, the first heat exchange pipe, the communicating hole, the second heat exchange pipe and the second guide plate are matched, so that the waste water is quickly cooled in the using process, and the waste water is prevented from being damaged in the waste water treatment process. The wastewater can be treated after the water temperature of the wastewater is reduced, so that the wastewater treatment time is shortened, and the wastewater treatment efficiency is improved.

The present invention discloses an intelligent decision-making optimization system and method for artificial intelligence, including a data acquisition module, a control module and an output module. The data acquisition module is used to obtain relevant information on wastewater treatment ponds and product production; the control module is used to control the basic requirements of wastewater treatment through the parameter information of the data acquisition module and make real-time decisions on the specific treatment methods of the wastewater treatment ponds; the output module is used to implement the content of the treatment methods of the control module. By grasping the treatment process of the wastewater treatment ponds in real time, the present invention takes into account the actual production situation of its own factory when selecting the treatment process, designs an energy-efficient treatment plan according to the characteristics of the wastewater, enables the enterprise to solve the wastewater treatment problem through wastewater reuse while taking into account the treatment quality and treatment speed, effectively controls environmental pollution, and has the characteristics of strong planning and decision-making ability and high accuracy of water quality control.

The utility model provides a device for treating circulating water of a power plant through electrochemical pretreatment-electrolysis coupling, and belongs to the field of electrochemical treatment of wastewater. Comprising a raw water tank, a simulated cooling tower, a sand filter tower, an electrochemical scale inhibition device, an oxidation polarization device, a buffer tank, an electric carbon filter device, an electric adsorption device and an electrolytic sterilization device which are connected in sequence. Ions in the circulating water of the power plant are separated and concentrated through electrochemical pretreatment, part of pretreated wastewater is reused for a circulating water system, and a generated oxidizing agent can be used for disinfection and sterilization of the circulating water. According to the utility model, the circulating water can be partially recycled, the discharge of the circulating water is reduced, and the output of the recycled water and the oxidizing agent can be dynamically regulated according to the quality and quantity of the circulating water, so that the dynamic balance of the water resource utilization of the circulating water system is achieved, and the oxidizing agent can be produced without any additional chemical agent and reused for the disinfection and sterilization of the circulating water.

The utility model relates to the technical field of production of chicken drops, in particular to a high-temperature and high-pressure sterilization device for chicken drops, which comprises a base, a sterilization tank and a hot water tank are mounted at the top of the base, and a drainage pipe for draining waste water is arranged at the bottom of the sterilization tank; the filtering mechanism comprises a filtering box which is fixedly connected to the end, away from the sterilization tank, of the drainage pipe, a filtering net is arranged in the filtering box, and an arc-shaped baffle is fixedly connected to the interior of the filtering box. The waste heat in the waste water is collected and utilized, the heated water body is supplemented into the hot water tank, heat waste is avoided, when the waste water in the sterilization tank is discharged, impurities in the waste water are filtered through the filter screen in the filter tank, residues of the impurities in the waste water are reduced, and follow-up waste water reutilization is facilitated.