1226 results about "Chemical agents" patented technology

The invention relates to the technical field of sewage treatment, and discloses a supervision system and method for a sewage treatment process, and the system comprises a multi-parameter real-time monitoring module, a data fusion and analysis module, an automatic dosing control module and a feedback optimization module. The method is applied to the system. According to the supervision system and method for the sewage treatment process, dynamic and accurate supervision of the sewage treatment process is realized through the synergistic effect of the multi-parameter real-time monitoring module, the data fusion and analysis module, the automatic dosing control module and the closed-loop feedback optimization module; the problems of parameter simplification, control lag, high energy consumption and the like in the prior art are solved, the standard reaching rate of effluent is increased, and meanwhile, the agent cost and the equipment maintenance cost are reduced.

The invention relates to the field of sewage treatment, in particular to a sewage treatment optimization method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring treatment parameters such as inlet water quality data, instantaneous flow, sewage types and outlet water quality requirements, matching corresponding treatment process constraint conditions according to the sewage types, and formulating differentiated treatment strategies according to characteristics of different types of sewage such as industrial wastewater, domestic wastewater and medical wastewater; the method comprises the following steps: determining sewage treatment data by combining instantaneous flow, effluent quality requirements and treatment process constraint conditions, calculating an aeration rate regulation value, sludge reflux and chemical agent dosage, realizing dynamic optimization of treatment parameters, generating a control instruction based on the optimized sewage treatment data, and issuing the control instruction to a sewage treatment system. The sewage treatment efficiency is effectively improved, and multi-target collaborative optimization sewage treatment is realized.

Provided herein are engineered nucleic acids (e.g., expression vectors, including viral vectors, such as lentiviral vectors, adenoviral vectors, AV vectors, herpes viral vectors, and retroviral vectors) that encode OCT4; KLF4; SOX2; or any combination thereof that are useful, for example, in inducing cellular reprogramming, tissue repair, tissue regeneration, organ regeneration, reversing aging, or any combination thereof. Also provided herein are recombinant viruses (e.g., lentiviruses, alphaviruses, vaccinia viruses, adenoviruses, herpes viruses, retroviruses, or AAVs) comprising the engineered nucleic acids (e.g., engineered nucleic acids), engineered cells, compositions comprising the engineered nucleic acids, the recombinant viruses, engineered cells, engineered proteins, chemical agents that are capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, an engineered protein selected from the group consisting of OCT4; KLF4; SOX2; or any combination thereof, an antibody capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, and methods of treating a (e.g., ocular disease), preventing a disease (e.g., ocular disease), regulating (e.g., inducing or inducing and then stopping) cellular reprogramming, regulating tissue repair, regulating tissue regeneration, or any combination thereof).

The invention provides a garlic planting full-process database service system based on agricultural big data, which relates to the technical field of agricultural planting and comprises a planting planning module, a seeding management module, a growth monitoring module, a topdressing irrigation management module, a pest control module and a harvesting decision module. The planting planning module accurately matches varieties and base fertilizer formulas according to soil and yield data; the seeding management and growth monitoring module dynamically optimizes planting measures in combination with real-time data and historical experience; the topdressing irrigation module, the pest control module and the harvesting decision-making module utilize technologies such as image recognition and spectrum detection to realize a precise and scientific management strategy, effectively improve the resource utilization rate, reduce the influence of environmental fluctuation on garlic growth, reduce the use of chemical agents, realize full-process data driving by integrating multi-source data, and improve the management efficiency. Meanwhile, a complete planting file is formed to support strategy iteration, large-scale and efficient development of garlic planting is facilitated, and then the economic benefits of garlic planting are effectively improved.

The invention discloses a gene RhNADP-LIKE for regulating and controlling Chinese rose flower aging, and particularly relates to the technical field of molecular biology and horticultural plant physiology. According to the invention, bottle insertion life phenotype data of 358 parts of core germplasm of tetraploid Chinese rose is screened through genome-wide association analysis (GWAS), and the gene RhNADP-LIKE significantly associated with senescence is identified. The gene accelerates the aging process of petals by regulating the accumulation of reactive oxygen species (ROS). After RhNADP-LIKE expression is inhibited by using a virus-induced gene silencing (VIGS) technology, the blooming period of rosa chinensis flowers is prolonged by about 2 days, and the ROS level is remarkably reduced. The invention provides a molecular target for prolonging the vase life of the Chinese rose, can be applied to gene editing breeding or development of an environment-friendly preservative, reduces the dependence of chemical agents, and improves the economic benefit and sustainable development potential of the cut flower industry.

The invention discloses a proportioning optimization method for efficiently balancing a chemical oil displacement system. The proportioning optimization method comprises the following steps: S1, collecting and sorting experiment and field data of the existing chemical oil displacement system; the oil displacement effect can be effectively improved by continuously optimizing the ratio of the chemical agents through experiments and numerical simulation, so that the recovery efficiency of an oil field is improved, the oil-water interface characteristics can be improved, the fluid viscosity can be reduced, the oil fluidity can be improved through the reasonable ratio of the chemical agents, and by analyzing the cost benefits of different ratios, the oil displacement effect can be effectively improved. The chemical agent combination with higher economical efficiency can be selected, the expenditure in the chemical oil displacement process is reduced, the oil displacement effect and cost are comprehensively considered, the resource utilization efficiency of the chemical oil displacement system is improved by optimizing the proportion, and it can be ensured that the selected proportion is not only theoretically effective but also theoretically effective through laboratory verification and on-site small-scale tests. And the method also has practical significance in practical application.

Provided herein are engineered nucleic acids (e.g., expression vectors, including viral vectors, such as lentiviral vectors, adenoviral vectors, AAV vectors, herpes viral vectors, and retroviral vectors) that encode OCT4; KLF4; SOX2; or any combination thereof that are useful, for example, in inducing cellular reprogramming, tissue repair, tissue regeneration, organ regeneration, reversing aging, or any combination thereof. Also provided herein are recombinant viruses (e.g., lentiviruses, alphaviruses, vaccinia viruses, adenoviruses, herpes viruses, retroviruses, or AAVs) comprising the engineered nucleic acids (e.g., engineered nucleic acids), engineered cells, compositions comprising the engineered nucleic acids, the recombinant viruses, engineered cells, engineered proteins, chemical agents that are capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, an engineered protein selected from the group consisting of OCT4; KLF4; SOX2; or any combination thereof, an antibody capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, and methods of treating a (e.g., ocular disease), preventing a disease (e.g., ocular disease), regulating (e.g., inducing or inducing and then stopping) cellular reprogramming, regulating tissue repair, regulating tissue regeneration, or any combination thereof).

The invention provides an intelligent maintenance cleaning device for nanofiltration membrane pollution control and a method thereof, and solves the problems of low maintenance cleaning efficiency, poor adaptability of cleaning parameters and pollution conditions and frequent chemical cleaning of an existing nanofiltration system. Belongs to the technical field of membrane pollution control. According to the invention, the filtering system, the cleaning system and the intelligent decision-making module are integrally designed, so that the closed-loop control of the whole process of real-time monitoring, pollution identification, intelligent decision-making and automatic cleaning of the running state of the nanofiltration membrane is realized. The cleaning effect gating memory neural network model is used as a membrane pollution prediction model, membrane pollution can be accurately predicted, and key cleaning nodes can be identified. The optimal membrane cleaning parameters are generated by adopting a non-dominated sorting genetic algorithm, the usage amount of chemical agents and the cleaning cost are reduced, and the membrane pollution control effect is improved. The invention is applicable to the field of drinking water treatment.

The utility model discloses a thermal hydrolysis cyanide breaking device, which relates to the technical field of wastewater treatment and comprises a cyanide breaking reactor, a wastewater heat exchanger, a pipeline mixer, a steam mixer, an instrument control valve and the like. After being heated by the wastewater heat exchanger, the wastewater enters a cyanide breaking reactor, and steam enters a steam mixer to heat the wastewater to a specified temperature and then enters the cyanide breaking reactor. The characteristic that the cyanide aqueous solution is easy to hydrolyze is utilized, so that the cyanide aqueous solution is hydrolyzed at the temperature of higher than 140 DEG C to produce sodium formate and ammonia, the toxicity of cyanide is eliminated, high-temperature wastewater discharged from the cyanide breaking reactor enters the wastewater heat exchanger to exchange heat with wastewater to be treated, and heat is recovered; the pressure of the reactor is controlled through a wastewater heat exchanger outlet wastewater outlet pipeline pressure regulating valve. The cyanide wastewater treatment device is reasonable in design, only a small amount of sodium hydroxide is needed for adjusting the pH of wastewater, no chemical agent needs to be added in other procedures, the cyanide wastewater treatment efficiency is improved, and the cost is saved.

The invention relates to the technical field of agricultural planting, in particular to a method for preventing and treating watermelon fusarium wilt by using a green bactericide, which comprises the following steps: preparing the green bactericide which comprises the following components in percentage by mass: 18-25% of composite plant source active component consisting of water lettuce extract, enteromorpha polysaccharide and field horsetail flavone; 20%-30% of an antagonistic bacterium compound preparation, wherein the antagonistic bacterium compound preparation comprises bacillus pumilus and trichoderma; 38%-45% of a nano-carrier, wherein a chitosan-sodium alginate compound is used as an embedding material; and the balance of auxiliary components. Applying the green bactericide to watermelon plants; through component optimization and a synergistic effect, compared with the prior art, the composition has the remarkable advantages that the safety is high, all the components are from natural plants or microorganisms, no chemical pesticide residue exists, the composition is healthy to human bodies and environmentally friendly, and the problems of drug resistance and soil pollution caused by chemical agents can be avoided.

The embodiment of the invention provides a dust suppression robot and a control method thereof, and relates to the field of dust suppression. The medicament box is fixed on the movable chassis and is used for accommodating a dust suppressant; the operation pipeline is fixed to the movable chassis and communicates with the agent box, and the operation pipeline is provided with a spraying opening used for spraying the dust suppressant; the agent pump is arranged on the operation pipeline and used for driving the dust suppressant to be sprayed out from the spraying opening; wherein the spraying opening comprises a sedimentation spraying opening which is arranged on the side of the operation pipeline and is used for spraying the dust suppressant into the air; the film forming nozzle is arranged at the end, facing the ground, of the operation pipeline and used for spraying a dust suppressant to the ground. The dust suppression robot can be applied to strong wind scenes and has good dust suppression capacity.

The application relates to a modified separation membrane in the technical field of membrane materials, a preparation method and application thereof. The modified separation membrane comprises a base film and a nanostructure layer on the upper surface of the base film and the membrane hole surface close to one side of the upper surface of the base film; wherein the pore size of the base film is 120-400 mu m; the nanostructure layer is composed of microparticles with a size of 100-1000 nm; the preparation method comprises 3D printing of the separation membrane; and the upper surface of the separation membrane and the membrane hole surface close to one side of the upper surface of the separation membrane are subjected to plasma treatment. The modified separation membrane preparation method combines the 3D printing technology and the membrane separation technology, improves the traditional membrane preparation process, finds a more optimal membrane replacement process, and the modification method is free of chemical agents, has the advantages of being more convenient and fast to operate, high in separation efficiency, low in processing cost, green and pollution-free, and the like, and has important significance in the aspects of membrane separation technology improvement and application of oily wastewater treatment.

Provided herein are engineered nucleic acids (e.g., expression vectors, including viral vectors, such as lentiviral vectors, adenoviral vectors, AAV vectors, herpes viral vectors, and retroviral vectors) that encode OCT4; KLF4; SOX2; or any combination thereof that are useful, for example, in inducing cellular reprogramming, tissue repair, tissue regeneration, organ regeneration, reversing aging, or any combination thereof in the central nervous system or ex vivo. Also provided herein are recombinant viruses (e.g., lentiviruses, alphaviruses, vaccinia viruses, adenoviruses, herpes viruses, retroviruses, or AAVs) comprising the engineered nucleic acids (e.g., engineered nucleic acids), engineered cells, compositions comprising the engineered nucleic acids, the recombinant viruses, engineered cells, engineered proteins, chemical agents that are capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, an engineered protein selected from the group consisting of OCT4; KLF4; SOX2; or any combination thereof, an antibody capable of activating expression of OCT4; KLF4; SOX2; or any combination thereof, and methods of treating a disease (e.g., a neurological disease), preventing a disease (e.g., neurological disease), regulating (e.g., inducing or inducing and then stopping) cellular reprogramming, regulating tissue repair, regulating tissue regeneration, or any combination thereof.

The invention discloses an automatic treatment device and method for metal workpiece surface polishing and application. According to the automatic environment-friendly electrochemical polishing device, the workpieces are automatically transferred through the automatic conveying device, automatic connection of all the procedures is achieved, and the automatic environment-friendly electrochemical polishing process of the metal workpieces such as the pure magnesium workpieces is achieved; and compared with the prior art, only water is used as a cleaning medium in the whole process, and toxic and harmful chemical agents are not needed. The environmental pollution risk is greatly reduced, and the environmental protection requirement is met. The environment-friendly polishing solution is adopted for electrochemical polishing, core components of the polishing solution are biodegradable non-toxic reagents such as ethyl alcohol and glycerinum, waste liquid treatment is simple, zero liquid discharge can be achieved, and the difficulty and cost of waste water treatment are remarkably reduced. According to the invention, the process flow is simplified, the consumption of chemicals and pollution emission are reduced, and the process efficiency is improved. According to the invention, whole-process monitoring and automatic operation from pretreatment to post-treatment are realized, the production efficiency and consistency are improved, and the method is suitable for industrial large-scale application.

The present invention discloses a chemical agent dispensing device for groundwater remediation, comprising: an outer cylinder for drilling, a medicine storage device for storing chemicals is arranged inside the outer cylinder, a medicine injection cylinder for mixing the chemicals with water is slidably inserted into the outer cylinder, a drainage device for introducing part of the groundwater into the medicine injection cylinder is arranged inside the outer cylinder, and a medicine discharging device for discharging the chemicals in the medicine injection cylinder into the groundwater is arranged on the medicine injection cylinder; in the present invention, the rotating blades in the medicine discharging device automatically adjust the rotation speed of the screw rod according to the groundwater flow rate, so as to realize the automatic adjustment of the discharging speed of the chemicals in the medicine injection cylinder into the groundwater. When the groundwater flow rate is fast, the discharging speed of the chemicals is increased; when the flow rate is slow, the discharging speed of the chemicals is decreased, so that the chemical agent dosage precisely matches the actual situation of the groundwater, significantly improving the utilization efficiency of the chemical agent and the remediation effect. Moreover, its structure is mainly composed of a screw rod, rotating blades, etc., and it works relying on the groundwater flow and mechanical transmission, reducing the probability of failure and the maintenance cost.

The present invention provides an anti-aging, whitening, freckle-removing, moisturizing skin care water and a preparation process thereof. A preparation process for an anti-aging, whitening, freckle-removing, moisturizing skin care water comprises the following steps: supercritical CO2 extraction of oat-yarrow extract; ultrasonic-enzymatic hydrolysis-assisted reflux extraction and concentration; adding oxidized resveratrol, salidroside and ellagic acid; adding purified water to dissolve and adding sodium alginate and glycerol; adding p-anisic acid and aromatic alcohol and homogenizing and mixing. The present invention is a skin care water prepared by first extracting extracts of bletilla striata, wormwood leaf, peony bark, oat and yarrow, and then adding oxidized resveratrol, salidroside, ellagic acid, sodium alginate, glycerol, p-anisic acid and aromatic alcohol. The skin care water not only has the effects of anti-aging, whitening, freckle removal and moisturizing, but also because its raw materials are all natural plant ingredients and no chemical agents are added, therefore, it will not irritate the skin and has no side effects, and can be used for a long time.

The invention discloses a method for regulating and controlling soft rot resistance of sweet potatoes by utilizing an IbHD2C gene and application of the method, and belongs to the technical field of gene engineering. The invention discloses an application of an IbHD2C gene (the nucleotide sequence is shown as SEQ ID NO.3) and an encoding protein (the amino acid sequence is shown as SEQ ID NO.4) thereof in regulation and control of soft rot resistance. Experiments prove that the resistance of sweet potatoes to soft rot can be remarkably improved by interfering the IbHD2C gene, and the resistance is reduced by overexpressing the gene. The invention provides a new target for disease-resistant breeding of sweet potatoes, solves the problems of dependence on chemical agents and lack of disease-resistant varieties in the prior art, and has the advantages of high efficiency, environmental protection and sustainability.

The invention discloses a compound microbial agent for preventing and treating fusarium wilt of cotton and application of the compound microbial agent, and belongs to the technical field of biological prevention and treatment of plant diseases. The prepared compound microbial agent is obtained by mixed culture of clostridium butyricum JBH-BD1 fermentation centrifugate, enterococcus faecium JBHBIO-BSC1, glucose and bacillus subtilis JBH-BK8, the preparation method is simple, and industrialized production, popularization and application are facilitated. The compound microbial agent has an obvious inhibition effect on cotton fusarium wilt caused by fusarium oxysporum, and the bacteriostasis rate reaches 66.7%. The harm of the cotton fusarium wilt to cotton is effectively reduced by utilizing a biotechnology, meanwhile, compared with a chemical agent, the problems of environmental pollution and the like are effectively avoided, and the application prospect is very wide.

The invention relates to the technical field of pipelines, in particular to a self-cleaning drainage pipeline which comprises a pipeline body and is characterized in that the pipeline body comprises a self-cleaning section, self-cleaning protruding strips are arranged on the inner wall of the self-cleaning section, and the self-cleaning protruding strips are arranged in a continuous spiral surrounding mode along the inner wall of the self-cleaning section. The self-cleaning device has the beneficial effects that water scale can be inhibited to a certain degree, existing water scale can be removed, no additional auxiliary device or chemical agent is needed, self-cleaning is achieved only through the pipeline structure, shutdown operation is not needed, the drainage process is not interrupted, waste of waste pipelines is avoided, and corrosion and pollution risks are avoided; the green and environment-friendly production concept is met.

The wastewater treatment system comprises a water inlet unit, a reactor, a separation unit and a circulation unit which are sequentially connected to form a closed-loop system, the water inlet unit is further connected with a chemical dosing unit, the water inlet unit is used for conveying wastewater to the reactor, and the chemical dosing unit is used for adding alkali into the wastewater to adjust the pH value and providing required magnesium ions; a fluidization reaction zone and a separation zone are arranged in the reactor, and the fluidization reaction zone promotes generation and growth of struvite particles through particle collision and aggregation; the separation zone enables generated particles to partially fall back to the fluidization reaction zone for continuous reaction through preliminary solid-liquid separation; the separation unit is used for receiving the wastewater in the separation area, further removing residual particles, and enabling the small particles to flow back to the reactor through the circulation unit for recycling. By optimizing the particle generation, separation and backflow processes in wastewater treatment, the formation of target large particles is promoted, the resource recycling is facilitated, meanwhile, the consumption of chemical agents is reduced, and the cost is reduced.

The invention relates to a synergistic composition for preventing and treating celery root rot. The tannic acid and fludioxonil in the synergistic composition disclosed by the invention show a relatively good synergistic effect in a compounding mass ratio range of (1: 50)-(50: 1). According to the synergistic composition disclosed by the invention, tannic acid with weak bacteriostatic activity on celery root rot and fludioxonil with excellent bacteriostatic activity are compounded for use, so that a remarkable synergistic effect is achieved, the prevention and treatment effect is far higher than that of a single agent, and the synergistic effect is achieved by reducing pesticide. Besides, according to the synergistic composition disclosed by the invention, the plant source tannic acid and the chemical bactericide fludioxonil are compounded for use, and the use amount of chemical agents is reduced, so that the resistance risk of the chemical bactericide is reduced, pesticide residues and ecological environment pollution are reduced, and the synergistic composition has a good application prospect.

The invention provides a metal part buried injection molding method which comprises the following steps: a metal part providing step: providing a metal part with the thickness of 0.5-0.7 mm; a roughness increasing step: corroding the surface of the metal piece by using a chemical agent so as to increase the roughness of the surface of the metal piece; a high-temperature pretreatment step: putting the metal piece after the roughness is increased into a heating device, and heating the metal piece to 130-140 DEG C; in the mold entering step, the heated metal part is embedded into a mold and continues to be heated, and the temperature of the metal part is kept at 130-140 DEG C; a buried injection step: carrying out injection molding on the metal piece at 130-140 DEG C to combine the plastic with the metal piece to form a finished product; and a pretreatment deformation step: taking out the finished product from the mold, drying the finished product, clamping the dried finished product on a jig, heating the finished product to enable the finished product to be in an environment of 110-130 DEG C, maintaining for 3-4 hours, and then cooling at normal temperature.

The utility model relates to the technical field of biological detection, and discloses a bioluminescence detector which comprises a bottom plate, a reagent rack and a luminescence detection module, the reagent rack and the luminescence detection module are arranged on the bottom plate, the reagent rack is connected with a kit in a sliding manner, a light filtering assembly is arranged above the kit, the light filtering assembly is provided with a plurality of light filters for selecting light waves, and the light filtering assembly is connected with the luminescence detection module. The luminous detection module detects an optical signal in the kit through the optical filter; the whole structure is compact, optical signals of non-target wavelengths can be removed and background light interference can be reduced by using the optical filters, so that the purity of the detection signals is improved, the light emitting detection module can detect the optical signals of the target wavelengths in a more targeted manner, and the accuracy of the detection result is enhanced; the appropriate filtering wave band can be selected according to different types of chemical agent reactions to meet different detection requirements, the application range of the detector is expanded, and the detector can be suitable for various bioluminescence reactions.

The application provides a Chinese medicine compound preparation for preventing and treating respiratory tract infection of livestock and poultry, a preparation method and application, and relates to the technical field of animal medicine. The Chinese medicine compound preparation is composed of 10 Chinese medicines, i.e. honeysuckle, forsythia, inula flower, platycodon grandiflorum, euphorbia helioscopia, xiaochangqing, fresh eucalyptus globulus, fried stemona, cat's claw and augustifolia, follows the principle of Chinese medicine syndrome differentiation and treatment, is reasonably matched, and the medicines are coordinated with each other to increase the efficacy. The Chinese medicine compound preparation can significantly reduce the levels of TNF-alpha and IL-6 in serum, increase the level of IFN-gamma, obviously alleviate the clinical symptoms of livestock and poultry respiratory tract infection, reduce the mortality, has a good treatment effect on the related diseases of livestock and poultry respiratory tract infection, can improve the drug resistance of antibiotic drugs, reduce the drug residues of chemical agents in livestock and poultry, and guarantees the health of livestock and poultry and the safety of animal source food.

The invention discloses a pickling line wastewater treatment device and treatment method, and relates to the technical field of pickling line wastewater treatment. The pickling line wastewater treatment device comprises a water injection tank, a medicament storage tank system, an adjusting tank, a neutralization reaction tank, a coagulative precipitation tank, a sludge concentration tank, sludge dewatering equipment, a water collecting tank, a water purifying tank and a sludge storage bin which are communicated in sequence, the filter frame is located in the shell, and sludge enters the filter frame through the conveying pipeline; the rotating assembly is used for driving the filtering frame to rotate, so that the sludge is dehydrated under the action of centrifugal force; the extrusion filter plate is arranged on the inner side of the filter frame and is used for extruding the sludge. The extrusion filter plate capable of reciprocating is arranged in the rotatable filter frame, so that the dehydration efficiency and the solid content of a mud cake can be remarkably improved by utilizing the synergistic effect of dynamic centrifugal force and intermittent mechanical pressure.

The invention discloses a low-molecular-weight active polymer, an O / W type emulsion and a preparation method and application of the O / W type emulsion, and belongs to the technical field of flotation chemical agents. The preparation method of the low-molecular-weight active polymer comprises the following steps: mixing and dissolving acrylamide, acrylic acid, an active hydrophobic monomer and water according to a set ratio, heating to 30-40 DEG C in an inert atmosphere, keeping the temperature for 30-40 minutes, then adding a redox initiating system into a reaction system, and continuously stirring and reacting for 4-5 hours at a constant temperature in the inert atmosphere to obtain a reaction product. The O / W type emulsion comprises the following components in parts by weight: 10 to 30 parts of hydrocarbon oil collecting agent, 0.1 to 0.5 part of low molecular weight active polymer and 69.5 to 89.9 parts of water. The low-molecular-weight active polymer has an amphiphilic structure, and the stability of the emulsion is improved through dual effects. And after being mixed with a hydrocarbon oil collecting agent, the oil collecting agent can be stored for more than 50 days for a long time.

The invention discloses a management method for improving cold resistance and drought resistance of macadamia nuts and increasing flowering quantity, which combines a four-stage dynamic management mode of soil improvement, cold resistance induction, drought resistance and tip control and flowering phase quality improvement, applies an organic fertilizer, a water-retaining agent and a composite slow-release fertilizer, induces root development, slowly releases the fertility of a chemical fertilizer, prolongs the action time of the chemical fertilizer, and improves the yield of the macadamia nuts. Brassinolide and potassium fulvate are compounded to activate cold-resistant gene expression of macadamia nut plants and improve cell membrane stability, so that cold resistance of the macadamia nut plants is improved, melatonin and methyl jasmonate perform double shoot control, an ABA signal channel of the plants is triggered, drought resistance of the plants is improved, flower bud differentiation is promoted, and growth of the macadamia nut plants is promoted. The synergistic effect of alginate oligosaccharide and gamma-aminobutyric acid enhances the elongation ability of a pollen tube, chemical agent stimulation is replaced by biological agent stimulation, the utilization rate of chemical agents is reduced, then the negative influence of the chemical agents on soil is reduced, and finally the fruit setting rate and the sustainable utilization of the soil are improved.

The invention relates to the technical field of wastewater treatment, and discloses a wastewater treatment device for petroleum additive production, which comprises a bracket, a treatment tank fixedly connected to the inner wall of the bracket, a cylinder fixedly connected to the inner wall of the bracket, a motor fixedly connected to the inner wall of the bracket, and a flocculant tank fixedly connected to the inner wall of the treatment tank. According to the device, a flocculating agent can be indirectly discharged, the effect of effectively gathering and removing pollutants such as solid particles and oil in wastewater can be improved, better conditions are created for further purification of subsequent water quality, the efficiency of a subsequent wastewater treatment method can be improved, and the device is suitable for popularization and application. The energy consumption and the use of chemical agents are reduced, the fusion of the flocculating agent and the wastewater can be accelerated, the mixing speed of the flocculating agent and the wastewater is accelerated, the utilization rate of the flocculating agent is improved, and the production cost is reduced.

The invention provides a reverse osmosis optimal dosing system and method based on ultraviolet sterilization, and the method comprises the following steps: firstly, the system monitors the influent microorganism load and water quality in real time, dynamically calculates the required ultraviolet dosage, and precisely adjusts the power of an ultraviolet sterilizer; secondly, according to the residual microorganism risk and the water inlet flow after ultraviolet treatment, the feeding amount of an oxidizing bactericide (such as sodium hypochlorite) is accurately adjusted according to a PID control strategy combining feedforward and feedback; meanwhile, according to the oxidation-reduction potential of the sterilized water body, a reducing agent (such as sodium hydrogen sulfite) is intelligently added to protect the reverse osmosis membrane. And finally, efficient cooperation of ultraviolet physical sterilization and chemical sterilization is achieved, on the premise that strict control over microbial pollution is guaranteed, the consumption and operation cost of chemical agents are remarkably reduced, generation of by-products is reduced, the service life of a reverse osmosis membrane is prolonged, and the intelligent level of system operation and the overall economic benefits are improved.

The invention relates to the technical field of contaminated soil restoration, and particularly discloses organic contaminated soil restoration equipment which comprises a supporting frame, a rotating shaft is installed at the bottom of the supporting frame, a plurality of rotating circular knives are installed on the rotating shaft at equal intervals, and a plurality of cutting edges are arranged on the outer edges of the rotating circular knives at equal angles. Soil forming assemblies are arranged on the two sides of the rotating circular cutter, each soil forming assembly comprises a circular plate fixed to the rotating shaft, the central axis of each circular plate deviates by a preset distance in the radial direction of the rotating shaft relative to the central axis of the rotating shaft, and the peripheral side of each circular plate is slidably sleeved with a lantern ring; according to the organic contaminated soil remediation equipment, a chemical agent solution horizontally permeates into soil, so that the chemical agent solution at all positions in the soil permeates uniformly, and the remediation effect on the organic contaminated soil is improved.