893results about How to "Avoid secondary pollution" patented technology

The invention provides a medical waste whole-process supervision method based on an intelligent medical waste monitoring platform, and the method comprises the steps: enabling collected smell data to be matched with pre-established medical waste smell component data, judging the type of medical waste to which a smell source belongs, and determining whether the smell concentration exceeds a preset threshold value or not; if the odor concentration exceeds the standard, microorganism information is obtained according to the relevance between the odor component information and microorganisms, and the microorganism breeding risk is evaluated in combination with temperature and humidity control parameters of the air conditioner; simulating airflow distribution of an air conditioning system, predicting diffusion paths and influence ranges of odor in different areas of a hospital by combining with position layout of an air outlet of the air conditioner, and generating an odor diffusion thermodynamic diagram; and according to the optimized disinfection scheme, the air conditioning system is controlled to enter a disinfection mode, the fresh air introduction proportion and the filtering efficiency grade are adjusted, a disinfectant is sprayed in the key area, and the disinfection effect is monitored in real time.

The invention relates to the technical field of environmental remediation, and discloses a biochemical synergistic remediation method for heavy metal contaminated soil, which comprises the following steps: S1, sampling the heavy metal contaminated soil, and analyzing the type, concentration and occurrence form of heavy metals of the heavy metal contaminated soil; s2, extracting active ingredients of polyphenols, organic acids or alkaloids from the plant materials; s3, applying a plant source activating agent to regulate the chemical form of the heavy metal in the soil and promote the activation of the heavy metal; s4, inoculating a functional microbial agent to enhance the heavy metal immobilization, transformation and phytoremediation capabilities; s5, planting hyperaccumulators, and cooperatively using the plant extract, the plant source activator and the microbial agent; s6, plant residue treatment and soil improvement. Through the synergistic effect of the plant extract, the plant source activator, the microbial agent and the hyperaccumulator, the plant source activator, the microbial agent and the hyperaccumulator can jointly act on the heavy metal contaminated soil from multiple ways, and chelating, activating, degrading and fixing of heavy metal are rapidly achieved.

The invention discloses a method for deeply removing readily oxidizable substances in high-purity electronic-grade phosphoric acid, which deeply removes the readily oxidizable substances in the high-purity electronic-grade phosphoric acid in a mode of combining ozone oxidation and resin adsorption to obtain a high-purity electronic-grade phosphoric acid finished product with extremely low readily oxidizable substance concentration. The specific process mainly comprises the following three steps: S1, introducing ozone gas at a certain temperature to oxidize readily oxidizable substances such as phosphorous acid and hypophosphorous acid in phosphoric acid into phosphoric acid so as to reduce the concentration of the readily oxidizable substances; s2, feeding the phosphoric acid subjected to ozone oxidation into an adsorption reactor to be in contact with an adsorbent, and further removing residual readily oxidizable substances in the phosphoric acid; and S3, filtering the phosphoric acid subjected to adsorption treatment through a filter element for separation, and removing residual small particles and impurities to obtain the electronic-grade phosphoric acid with readily oxidizable substances removed. The method is simple in process, controllable in condition, convenient to operate, safe and environment-friendly, does not need to add an additional solvent, avoids introduction of new impurities, reduces secondary pollution, and is suitable for preparing high-purity electronic-grade phosphoric acid.

The invention discloses a fresh-keeping production device and method for prefabricated vegetables, and relates to the technical field of prefabricated vegetable processing.The fresh-keeping production device comprises a main body, a conveying mechanism is arranged at the bottom end in the main body, a washing mechanism is arranged at the position, above the conveying mechanism, in the main body, and the conveying mechanism comprises a conveying belt and two sets of conveying rollers; the conveying belt is wound around the outer sides of the two sets of conveying rollers, and drainage holes are formed in the surface of the conveying belt. Through the cooperation of reverse operation and reciprocating brushing of the brushing mechanism, pressurized water flow of the flushing mechanism and the bubble effect of the bubble generation mechanism, vegetables are cleaned in multiple directions, various dirt and pesticide residues are effectively removed, the cleaning effect is remarkably improved, it is guaranteed that raw materials of the prefabricated vegetables are clean, preservation is facilitated, and the transmission mechanism reasonably distributes and converts power; and the nozzle of the flushing mechanism performs multi-angle flushing, and water recycling is realized through a backflow box and a filter plate, so that water is saved, secondary pollution of sludge is avoided, the cost is reduced, and the device is environment-friendly.

The invention discloses an oil gas dust removal and purification system capable of intelligently sensing and adjusting air volume and pressure balance. The oil gas dust removal and purification system comprises an intelligent monitoring and control module based on a system architecture, an air volume optimization and dust removal processing module and a pressure management and safe discharge module, and the intelligent monitoring and control module comprises an environmental data acquisition module and an intelligent decision and execution module; the air volume optimization and dust removal treatment module comprises an air volume intelligent adjusting module and an efficient dust removal and filtering module. Compared with the prior art, the system has the advantages that the air volume and the pressure are intelligently adjusted; efficient dust removal and purification are realized; and the safety performance is improved.

The utility model discloses a plastic film residue recycling machine which comprises a machine frame. A transmission mechanism; a picking mechanism; the two ends of the profiling wheel are rotationally connected to the rack, and the profiling wheel is in transmission connection with the picking mechanism; one end of the demolding mechanism is in transmission connection with an output end of the transmission mechanism; the two winding mechanisms are arranged at an acute angle; the winding mechanism comprises a packaging driving shaft, a packaging driven shaft, a packaging belt and two mounting plates; the packaging driving shafts and the packaging driven shafts are parallel and are connected to the two mounting plates in a rotating mode, and one end of one packaging driving shaft is in transmission connection with one end of the demolding mechanism. The packing belt is wound on the packing driving shaft and the packing driven shaft; the two baffles are arranged on the two sides of the two winding mechanisms correspondingly and connected to the two mounting plates located on the same side correspondingly; the two ends of the packaging transmission assembly are connected to the ends of the two packaging driving shafts correspondingly. The plastic film residue recycling machine can package plastic film residues, prevent the plastic film residues from being blown away when wind power is large, and avoid secondary pollution of the plastic film residues to the environment.

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The invention provides a dosing control method, system and equipment for a sewage treatment process and a medium, and the method comprises the following steps: obtaining multi-source heterogeneous data, and processing the multi-source heterogeneous data to construct a high-dimensional state vector; inputting the high-dimensional state vector into a drug demand dynamic prediction model to obtain a predicted concentration sequence; obtaining a target control instruction according to the current high-dimensional state vector and the predicted concentration sequence; the target control instruction is issued to a controller of the target dosing pump, and dosing control is carried out through the controller; the method solves the industrial problems of response lag, excessive or insufficient addition, incapability of coping with sudden change of water quality, high operation cost and the like existing in the traditional artificial experience control or simple PID (Proportion Integration Differentiation) control. According to the method, under the rigid constraint of absolutely ensuring that the effluent quality is stable and reaches the standard, the medicament consumption can be reduced to the greatest extent, the operation cost is reduced, the secondary pollution is avoided, and the automation and intelligence level of the operation of the whole sewage treatment system is improved.

The invention relates to the technical field of hollow part production, and discloses a metal-plastic composite car lamp frame shell integrated injection molding device which comprises an injection molding machine, a movable mold and a fixed mold are installed in the injection molding machine, an external manipulator and an external cooling module are installed outside the injection molding machine, and two fixing holes are symmetrically formed in the outer surface of the movable mold; an injection molding assembly is arranged in the injection molding machine, the injection molding assembly comprises not less than two metal pipes and not less than four extension pipes, and in the cooling process, the metal pipes are cooled from inside to outside based on the physical characteristics of the metal pipes; by means of the cooling mode, the middle of the molding material is cooled and shrunk firstly, the situation that the outer layer is solidified firstly due to the fact that cooling is conducted from the outside to the inside of the cavity traditionally is changed, when the internal material is cooled and shrunk, limitation of the solidified outer layer material is avoided, and therefore the problem that cavities are generated due to inconsistent shrinkage is effectively prevented.

A process and system for recovering electrolyte and carbon powder from electrolytic aluminum anode carbon residues are characterized in that the electrolytic aluminum anode carbon residues are crushed, dried, ground and sieved, fine powder is sent to a cyclone combustion furnace for combustion, the electrolyte in the carbon residues is molten and then enters an electrolyte melting pool, and the surface of the electrolyte melting pool can be subjected to residue stirring; the bottom of the molten pool is poured with a high-temperature-resistant material and is provided with multiple holes, the molten electrolyte flows out of the holes and enters a rotary jet granulation device, the molten electrolyte is cut into frits with small particle sizes under the gas cutting action of rotary jet, meanwhile, the molten electrolyte is cooled by airflow, and the molten electrolyte is separated from the molten pool; the small frits are further cooled, so that the surfaces of the small frits are completely solidified, the small frits are discharged through a discharge port, and flue gas generated by combustion enters a tail flue, exchanges heat with a heat exchanger, enters a dust remover system for dust removal, then enters an alkali liquor spray tower and a denitration device, and is finally emptied; according to the method, the electrolytic aluminum carbon residues are subjected to resource recycling, and the electrolyte utilization rate is increased.

The invention discloses an automatic pure water ultrafiltration treatment device, and relates to the technical field of pure water graded filtering and cleaning, the automatic pure water ultrafiltration treatment device comprises a filtering bin, a pure water liquid injection device is mounted on one side of the upper surface of the filtering bin, and a cleaning liquid injection device is mounted on the other side of the upper surface of the filtering bin; compared with the prior art that pure water is pressurized to an ultrafiltration membrane in a fixed mode for ultrafiltration of the pure water, the rotation direction of the motor is automatically recognized and controlled through the sensor, so that the liquid spraying chamber can conduct ultrafiltration at different positions and heights of the ultrafiltration membrane cylinder, and excessive accumulation of the pure water on the surface of the membrane can be avoided; meanwhile, the membrane surface can be cleaned and maintained in time, the service life of the ultrafiltration membrane can be remarkably prolonged, and the replacement cost can be reduced. Compared with fixed pressurization, the automatic adjusting system can be flexibly adjusted according to different water quality, water quantity and treatment requirements. Due to the flexibility, the system can better adapt to various complex and changeable working environments, and the overall treatment effect is improved.

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The utility model provides a photovoltaic panel cleaning trolley, and relates to the field of photovoltaic panel cleaning. The cleaning vehicle comprises a vehicle body, a water spraying device, a sweeping device and a water stain cleaning device, the sweeping device comprises a first mounting frame, a rolling brush and a sweeping motor, and the first mounting frame is mounted in front of the vehicle body; the rolling brush is rotatably mounted on the first mounting frame; the cleaning motor is fixedly mounted on the first mounting frame; the water spraying device comprises a water tank, a self-sucking pump and a nozzle; the water tank and the self-sucking pump are arranged on the vehicle body; the nozzle is arranged on the first mounting frame; the clean water stain device comprises a second mounting frame, a sponge and an extrusion motor, and the second mounting frame is mounted behind the vehicle body and comprises a rear baffle; a pressing plate capable of reciprocating back and forth is mounted on the second mounting frame; the sponge is arranged between the rear baffle and the pressing plate; the extrusion motor is fixedly connected with the second mounting frame, and an output shaft is in transmission connection with the pressing plate. The cleaning vehicle can greatly improve the cleaning effect on the photovoltaic panel, and is low in requirement on water resources, so that the cleaning vehicle is wide in application range and very suitable for northwest regions.

The present invention provides a self-scaling and self-sterilizing circulating cooling water system, comprising an electrochemical electrolysis device arranged on a pipeline of the circulating water system; the electrochemical electrolysis device is used to convert chloride ion-containing water into H + and oxidizing chlorine species, and then the H-rich + The system of the present invention directly connects the electrochemical electrolysis device to the original circulating cooling water system, and utilizes the action of the electrochemical electrolysis device to generate H-rich + and oxidizing chlorine species in water and input the water into the pipeline for scale inhibition and sterilization of the water, replacing the traditional technical means of adding sulfuric acid, scale inhibitors and bactericides into the circulating water system.

The invention relates to the technical field of ecological management, in particular to mud flat spartina alterniflora harvesting and baling equipment and management system.The mud flat spartina alterniflora harvesting and baling equipment comprises a main body, and a harvesting module, a picking module, a baling module, a power system, an ecological restoration module and a discharging and transporting system are arranged in the main body; the harvesting module and the picking module respectively comprise a harvesting assembly and a picking assembly, and the power system is used for driving the harvesting assembly and the picking assembly. The rotary motor serves as a power source to drive the harvesting assembly, the picking assembly and the conveying assembly to work, the structure is ingenious, and electric energy consumption is reduced; the mudflat spartina alterniflora harvesting and baling treatment system has the advantages of being efficient, environmentally friendly and intelligent, and the efficiency problem in spartina alterniflora removal and treatment can be effectively solved.

The invention belongs to the field of wastewater treatment and industrial automatic control, and particularly relates to an intelligent dosing control method based on water quality online monitoring. The method comprises the following steps: capturing a water body spectrum fingerprint spectrum by using a full-spectrum scanning module to obtain a characteristic signal sequence; a chemical informatics molecular algorithm is introduced for preprocessing and feature enhancement, and molecular fingerprint information is recognized; a convolutional neural network model is constructed to decouple chemical oxygen demand, ammonia nitrogen, total phosphorus and water toxicity indexes from the spectral signals, and multi-parameter parallel inversion is achieved; and based on the inversion index and the spectral dynamic trend, the dosage is calculated through an intelligent decision-making algorithm, and accurate dosing of the medicament is driven. According to the invention, through fusion of full spectrum scanning and deep learning, high-precision anti-interference water quality perception is realized, potential risks can be identified and preventive intervention can be carried out, and the intelligent level and economical efficiency of dosing control are improved.

A respiratory tract treatment atomizer disclosed by the present invention comprises an atomizer main body, the inner wall of the atomizer main body is fixedly connected with a control panel, the mist outlet end of the atomizer main body is fixedly sleeved with a connecting hose, the mist outlet end of the connecting hose is fixedly connected with a mouth-nose mask, and the right side of the atomizer main body is fixedly connected with a fixing plate. A collecting cover is fixedly connected to the inner wall of the fixing plate, a limiting ring is rotatably connected to the inner wall of the collecting cover, a cleaning mechanism is arranged in the limiting ring, a rotary liquid inlet assembly is arranged below the collecting cover, and the cleaning mechanism is driven by a driving mechanism to rotate along the inner wall of the connecting hose. Meanwhile, through auxiliary rotation of the rotary liquid inlet assembly and clean water suction work, clean water can be driven to brush the inner wall of the connecting hose through a water outlet hole and a cleaning brush in the cleaning mechanism, liquid medicine residues on the inner wall of the connecting hose can be completely cleaned through brushing, and the problem that liquid medicine is not completely cleaned is solved.

The invention relates to a laser cleaning device and method for a battery blue film, and the device comprises a supporting box body which is used for supporting the device; the multi-station rotating table comprises a rotating disc rotatably arranged on the supporting box body, a driving device used for driving the rotating disc to rotate is arranged in the supporting box body, and a plurality of station grooves are formed in the rotating disc at equal intervals; the lifting frame is arranged on the supporting box body, and the rotating disc is sleeved with the lifting frame; and the laser cleaning device is hoisted on the hoisting frame, is positioned above one of the station grooves, and is used for cleaning the battery in the station groove below the laser cleaning device. The multi-station rotating table is matched with the laser cleaning device, batched automatic cleaning of the battery blue film can be achieved, the automation degree of the cleaning process is greatly improved, manual intervention is reduced, and the production efficiency is improved.

The invention provides air purification equipment, a control method and device thereof and a readable storage medium, and relates to the technical field of air purification. The air purification equipment comprises a base; and the dust collection assembly is arranged on the base, the dust collection assembly comprises a dust collection surface, the dust collection assembly can generate an electric field under the condition of electrification, and the dust collection surface is used for collecting pollutants in air through the electric field.

The invention discloses a water environment treatment material based on composite minerals and aquatic plants and a preparation method and application thereof, and belongs to the technical field of water environment treatment. The water environment treatment material comprises the composite minerals and the aquatic plants, the composite minerals can adsorb and convert heavy metal ions, ammonia nitrogen and organic pollutants, and by combining the absorption of the aquatic plants on nutrient substances and the decomposition effect of microorganisms on the pollutants, the concentration of the pollutants in a water body can be remarkably reduced, and the water quality index is improved; the problems of water eutrophication, heavy metal pollution, organic pollution and the like are effectively solved; the photosynthesis of the aquatic plants can absorb a large amount of carbon dioxide, carbon elements are transferred into the bottom mud for long-term storage, meanwhile, the existence of the complex minerals indirectly promotes the carbon sequestration effect of the aquatic plants, the carbon sequestration capacity of the whole water body ecological system is improved, and finally the multiple purposes of water body pollution treatment, bottom mud remediation, carbon sequestration and sink increase and the like are achieved. The health and the stability of a water body ecological system are improved.

The invention relates to the technical field of carding machines, in particular to a carding machine with a cotton fiber cleaning and collecting function, which comprises a carding machine body, a feeding structure, an adjusting structure, a cleaning structure, a filtering structure, a scraping structure, an air blowing structure, a licker-in, a cylinder and a doffer, the feeding structure and the adjusting structure are used in cooperation so that the size of an inlet can be adjusted conveniently, flexible adjustment can be conducted according to raw materials of different thickness specifications, blocking is avoided, it is ensured that various raw materials are fed smoothly, cotton dust can be cleaned and collected conveniently through the cleaning structure, the cotton dust can be prevented from forming secondary pollution in a workshop, and therefore the cleaning effect is achieved; the clamping block in the filtering structure is clamped with the connecting frame, so that the connecting frame and the dust suction box can be conveniently and quickly disassembled and assembled, the replacement efficiency of the filter screen is improved, cotton dust on the pipe wall can be continuously scraped in the operation process of the dust suction pipe through the scraping structure, a large amount of cotton dust is prevented from being accumulated, and it is guaranteed that the dust suction pipe is always kept smooth; and a good dust collection effect is maintained.

The invention provides a panel glass non-contact defect detection device and a defect detection method, and belongs to the field of glass defect detection.The panel glass non-contact defect detection device is characterized in that two groups of first air floating plates are arranged at the front end and the rear end of a glass conveying path; the second air floating plate is arranged between the two groups of first air floating plates; the detection assembly is arranged above the second air floating plate and detects the defects of the upper and lower surfaces of the glass; the traction assembly pulls the glass to move; the first air floating plate and the second air floating plate drive the glass to suspend, the air hole distribution density of the second air floating plate is larger than that of the first air floating plate, and the distance between the surface of the second air floating plate and the lower surface of the glass is smaller than that between the surface of the first air floating plate and the lower surface of the glass. The precise air floating plate set is arranged between the two common air floating plates, so that the part, passing through the clearance groove, of the glass is more stable in suspension and not prone to deviation, and the accuracy and stability when the detection assembly observes the glass at the position of the clearance groove are guaranteed; sliding blocks of the traction assemblies are adsorbed to the side faces of the glass instead of the upper and lower surfaces.

The invention discloses a strong coupling cooperative treatment method for urban vein industrial park waste, and relates to the technical field of urban waste treatment. The method comprises the steps of 1, classified collection and pretreatment; 2, waste treatment; 3, waste strong coupling cooperative treatment; 4, information management and monitoring are carried out, effective integration of energy and material flow among different types of waste is achieved through the waste strong coupling cooperative treatment technology, waste heat generated by metal waste smelting or medical waste incineration is used for the anaerobic digestion process, the biomass energy conversion efficiency is improved, and the energy utilization rate is increased. The method has the advantages that the requirements of external energy sources are reduced, internal circulation and efficient utilization of the energy sources are achieved, in addition, building waste, sludge and the like are converted into soil conditioners or renewable resources, plastic cleaning waste water is recycled in the production process or the greening and cleaning link in the park, maximum recycling and cyclic utilization of the resources are embodied, and the sustainable development principle is met.

The utility model discloses a vegetation concrete river channel slope protection structure which comprises a vegetation concrete slope protection face, a water conduction system and a purification module. The purification module can intercept rainwater and spray water flowing down from the vegetation concrete slope protection surface, the rainwater and the spray water are further filtered through the geotechnical cloth filter layer and the pervious concrete partition wall after being precipitated through the sewage collection tank, and therefore the purpose of further purification is achieved. The water can flow into the water body through the water guide pipe; and the water can be sprayed on the vegetation concrete slope protection surface through the spraying pipe, so that water necessary for growth can be provided for the vegetation concrete slope protection surface, and the vegetation concrete slope protection surface can be purified by fully utilizing the purification capacity of the vegetation concrete slope protection surface.

The utility model relates to the field of industrial cleaning equipment, and discloses a quick-discharge rinsing tank which comprises a quick-discharge rinsing tank body, mounting frames are fixedly connected to the upper ends of the front side and the rear side of the quick-discharge rinsing tank body, rinsing spraying pipes are fixedly connected to the mounting frames, a bubbling liquid homogenizing fixing plate is fixedly connected to the bottom of the inner wall of the quick-discharge rinsing tank body through screws, and the bubbling liquid homogenizing fixing plate is fixedly connected to the bottom of the inner wall of the quick-discharge rinsing tank body. A space is reserved between the bubbling liquid-homogenizing fixing plate and the inner wall of the bottom side of the quick-discharging rinsing tank, one side of the quick-discharging rinsing tank is fixedly connected with a resistivity detection pipe, one end of the resistivity detection pipe is a connecting pipe and is communicated with an inner cavity of the quick-discharging rinsing tank, and the other side of the quick-discharging rinsing tank is fixedly connected with a booster water pump; according to the device, automatic product carrying is achieved through the precise butt joint and positioning technology, efficient cleaning and pollution prevention are guaranteed through the bubbling liquid uniformizing and bubbling technology, the cleaning quality is guaranteed through rapid liquid discharging and secondary spraying, and the high-standard cleaning requirement is met.

The invention relates to the technical field of solid waste recycling, in particular to a bean dreg recycling method which comprises the following steps: adding a first compound enzyme into bean dregs and first water to perform enzymolysis, performing ultrasonic treatment and first heating treatment on the prepared first mixture, and performing first centrifugal treatment to prepare first liquid and first solid; adding a second compound enzyme into the first solid and second water for enzymolysis to obtain a second mixture, and carrying out second heating treatment and second centrifugal treatment on the second mixture to obtain a second liquid and a second solid; an oligosaccharide concentrated solution prepared from the first liquid can be used as an additive of a soymilk beverage, and a soybean hydrolysis concentrated solution prepared from the second liquid; the soybean hydrolysis concentrated solution can be used as a freshener; the insoluble fiber polysaccharide prepared from the second solid can be used as a dietary fiber supplement or used for preparing feed. According to the method, recycling and comprehensive utilization of the bean dregs are achieved, secondary pollution is avoided, the application range of recycled products is wide, and the economic value is high.

The invention discloses a method for promoting degradation of penicillin antibiotics in a water body. The method comprises the following steps: S1, detecting water quality; s2, medium adjustment; s3, carrying out catalytic degradation; s4, precipitation reaction; medium adjustment is performed on the water body to be treated by using calcium ions and organic matters, so that an example state in the water body to be treated is good, the calcium ions can be coordinated with carbonyl and carboxyl in penicillin molecules, a hydrolyzed reaction intermediate is stabilized, the hydrolysis rate of penicillin antibiotics is increased, and the yield of penicillin antibiotics is increased. The characteristic functional groups such as amino and sulfydryl in the biological metabolism organic matter can also serve as strong nucleophilic reagents to promote rapid hydrolysis of penicillin antibiotics, and meanwhile, through specific setting of the method, it can be avoided that calcium ions and biological organic metabolism media cause secondary pollution to the to-be-treated water body before degradation.

The present invention discloses a pollution-proof isolation type disposable sputum suction tube and a method of using the same, and relates to the technical field of medical auxiliary equipment, including a sputum suction mechanism, a fixing mechanism is arranged at one end of the outer wall of the sputum suction mechanism, the sputum suction mechanism includes a protective tube, both sides of the inner wall of the protective tube are provided with a card slot, the inner surface wall of the protective tube is movably embedded with an isolation tube, and both sides of the outer wall of the isolation tube are provided with a card block. When the sleeve is pulled out of the patient's mouth, it will enter the isolation tube, and the outer wall of the sleeve is provided with a slide groove, and the slide groove will be engaged with the limit block of the inner surface wall of the isolation tube, so the sleeve will drive the isolation tube to slide in the protective tube during the upward sliding process, and when the protective tube slides upward, under the action of the connecting rod, it will drive the isolation cover to be closed, and when the sleeve completely enters the protective tube, the isolation cover will be completely closed, so that the mucus attached to the surface of the sleeve will not leak out, thereby preventing the mucus from dripping on the patient's body or bed, and further improving the sealing of the device.

The invention provides a lithium slag-based cat litter and a preparation method thereof. The preparation method of the lithium slag-based cat litter comprises the following steps: obtaining a lithium slag raw material; calcining the lithium slag raw material, and cooling to obtain modified lithium slag; carrying out wet ball milling on the modified lithium slag, a siliceous auxiliary material and an additive, sieving, and drying the undersize material to obtain a powder material; adding plant fiber powder into the powder, and uniformly mixing to obtain mixed powder; feeding the mixed powder into a disc granulator, spraying a first solution, and granulating through the granulator to obtain a blank body; and drying the blank body to obtain the lithium slag based cat litter. Wherein the lithium slag raw material comprises lepidolite slag or lepidolite; the first solution comprises a binder, a bactericide and deionized water. In the invention, the lithium slag is used as a raw material to prepare the lithium slag-based cat litter, so that large-amount doping of the lithium slag, namely high-added-value recycling, can be realized.

The invention provides a zero discharge method based on combination of membrane process salt separation and evaporative crystallization, which comprises the following steps: pretreating wastewater to obtain impurity-removed wastewater; separating salt and other dissolved substances in the impurity-removed wastewater by using a membrane-method salt separation technology to form separated wastewater, and evaporating water in the separated wastewater by using an evaporative crystallization technology to realize zero discharge of the wastewater. According to the method, a membrane separation technology and an evaporative crystallization technology are combined, so that industrial wastewater is efficiently treated in an environment-friendly manner, zero discharge of the wastewater is realized, and meanwhile, salt and other dissolved substances in the wastewater are recycled, so that economic benefits and environmental protection benefits are improved.