22results about How to "Completely degraded" patented technology

The invention discloses a system and a method for degrading organic wastewater through cooperation of hydrodynamic cavitation and plasma. The system comprises a liquid storage tank, an aeration device and a plasma rotary cavitation reactor, the plasma rotary cavitation reactor comprises a reactor shell, and the reactor shell is provided with an organic wastewater inlet and an organic wastewater outlet; the aeration device is communicated with the organic wastewater inlet; and the liquid storage tank is communicated with the aeration device. The plasma discharge technology and the hydrodynamic cavitation technology are fused, active substances such as ozone and hydroxyl radicals are generated through dielectric barrier plasma discharge, degradation of organic wastewater is enhanced in cooperation with the hydrodynamic cavitation technology, and the degradation effect of the wastewater is improved; an upper row of teeth and a lower row of teeth with opposite tooth inclination angles are arranged on the rotor, so that fluid is triggered to circularly flow between a cavitation area and a discharge area, and the gas-liquid mass transfer efficiency is further improved; by arranging the upper jet flow cavitation channel and the lower jet flow cavitation channel which are variable in inner diameter and opposite in direction, the pressure drop value when fluid flows through the channels is changed, and the cavitation effect is enhanced.

The invention discloses a wastewater degradation system and a wastewater degradation method based on cooperation of radial microchannel discharge and cavitation, and belongs to the technical field of organic wastewater treatment. The device comprises a waste liquid pool, a micro-channel discharge cavitation degradation device, an ozone generator, a Venturi tube and a collection pool, the Venturi tube is respectively communicated with the ozone generator, the waste liquid pool and a to-be-degraded wastewater inlet of the micro-channel discharge cavitation degradation device. A dielectric barrier discharge technology and a hydrodynamic cavitation technology are fused, a large number of active substances are generated in the inner and outer cavitation cavities through dielectric barrier discharge, a strong cavitation effect is generated around the rotor in cooperation with rotation of the cavitation rotor, and organic wastewater is degraded; by arranging the radial micro-channel discharge device, the discharge area is increased, the number of active substances such as ozone and hydroxyl radicals in gas and liquid phases is increased, and the inactivation loss of the active substances in the transportation process is reduced; and by arranging rotor cavitation teeth with opposite rotation directions, circular flow of a gas phase and a liquid phase is triggered, and the mass transfer efficiency is improved.

Engineering bacteria for expressing an alpha-glucose phosphate mutase gene, a glucose phosphate mutase gene, a difunctional enzyme glucose phosphate isomerase / mannose 6-phosphate isomerase gene and a mannose 6-phosphate phosphatase gene are used as a whole-cell catalyst, starch or a starch derivative is used as a substrate, phosphate and Mg < 2 + > are added, and the whole-cell engineering bacteria are obtained. A whole-cell catalysis system is constructed, and starch or starch derivatives can be efficiently catalyzed to synthesize D-mannose. According to the method, the D-mannose is prepared through whole-cell catalysis, and the method has the advantages of being low in cost, low in pollution, high in yield and the like and is suitable for industrial production of the D-mannose.

The invention provides a kitchen oil stain cleaning agent and a range hood cleaning method, and relates to the technical field of kitchen cleaning. The kitchen oil stain cleaning agent is prepared from the following raw materials in parts by weight: 30 to 50 parts of sodium silicate, 1 to 10 parts of sodium gluconate, 1 to 10 parts of alpha-sodium olefin sulfonate, 1 to 10 parts of diamine tetraacetic acid disodium salt, 1 to 10 parts of sodium carbonate and 1 to 10 parts of sodium hydroxide. The kitchen oil stain cleaning agent has the advantage of being good in kitchen oil stain cleaning effect. The range hood cleaning method can be matched with a kitchen oil stain cleaning agent to achieve a sufficient cleaning effect on the range hood.

The invention discloses a complex microbial inoculant for degrading 2, 3-dichloropropanol (DCP) as well as a preparation method and application of the complex microbial inoculant. The invention relates to the technical field of biology, and discloses a complex microbial inoculant. The complex microbial inoculant is prepared from a rhodococcus strain DC-20, a rhodococcus bayden strain DC-21, a rhodococcus strain DT-18 and bacillus cereus DBC-6. The complex microbial inoculant can degrade DCP and has good degradation efficiency, and after continuous degradation is conducted for 14 days, the degradation efficiency of DCP of 60 mg / L, the degradation efficiency of DCP of 90 mg / L and the degradation efficiency of DCP of 150 mg / L are 100%, 94.78% and 91.903% respectively. The complex microbial inoculant disclosed by the invention can be used for enhancing the biodegradation of 1, 2, 3-trichloropropane (TCP) so as to realize efficient and thorough removal of the TCP.

The invention relates to the technical field of water pollution treatment catalysts, and discloses a poplar / willow catkin-based flexible porous carbon tube loaded iron-zinc composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: crushing, cleaning and drying poplar / willow catkin to obtain pure poplar / willow catkin, pretreating the pure poplar / willow catkin through an ethanol solvothermal method to obtain lignin-removed poplar / willow catkin, dissolving ferric iron salt and divalent zinc salt in a solvent, and stirring to obtain a mixed solution; putting the lignin poplar / willow catkins into the mixed solution, stirring, and adjusting the pH to be alkaline to obtain a turbid liquid; stirring and filtering the turbid liquid, adjusting the pH value to be neutral, carrying out suction filtration, and drying to obtain an iron and zinc loaded poplar / willow catkin tube; and pre-oxidizing and calcining to obtain the poplar / willow catkin-based flexible porous carbon tube loaded iron-zinc composite material. The poplar / willow catkin-based flexible porous carbon tube loaded iron-zinc composite material is easy to separate and recover, can be used as a photo-Fenton catalyst in water pollution degradation, and has excellent water system pollution degradation capability.

The invention provides a microorganism-electro-Fenton device for treating sewage pollutants, the microorganism-electro-Fenton device comprises an anode chamber, a cathode chamber and a cation exchange membrane, the anode chamber contains electrogenesis bacteria liquid of electrogenesis bacteria; an anode carbon rod is inserted into the anode chamber and is filled with an anode graphite carbon felt; a cathode carbon rod is inserted into the cathode chamber, and a cathode graphite carbon felt is arranged on the cathode carbon rod; the cation exchange membrane is arranged between the anode chamber and the cathode chamber, and the cation exchange membrane is a proton exchange membrane; the conventional pollutants in the sewage are decomposed by utilizing electrogenesis bacteria in an anode solution in the anode chamber, chemical energy is converted into electric energy, and electrons and protons are generated; electrons reach the cathode through an external circuit, and protons are transmitted to the cathode chamber through the cation exchange membrane; aeration is conducted in the cathode chamber, oxygen dissolved in the cathode chamber is combined with electrons and protons to generate H2O2, then the H2O2 and Fe < 2 + > are subjected to a Fenton reaction to generate hydroxyl free radicals, and the hydroxyl free radicals mineralize novel pollutants in a cathode solution.

The invention relates to a method for removing halogenated pollutants in water through alternating current pulse electrochemistry. The method comprises the following steps: applying a periodic alternating current pulse, so that the halogenated pollutants in the water are alternately subjected to electrochemical oxidation and electrochemical reduction, and the process is repeated. In the electrochemical oxidation stage, the halogenated pollutants can be oxidized through intermediate species such as direct electron transfer or indirectly generated hydroxyl free radicals or the combination of the two; in the electrochemical reduction stage, the halogenated pollutants can be reduced through direct electron transfer or hydrogen free radicals and other reducing intermediates, or through the combination of the direct electron transfer and the hydrogen free radicals, redox degradation of the halogenated pollutants is achieved. Compared with the prior art, the alternating-current pulse electrochemical method combines the advantages of an oxidation method and a reduction method, and has the characteristics of high reaction rate, more thorough degradation, high dehalogenation rate, no need of additional chemical reagents, high stability and lower electric energy consumption.

The invention discloses a single-crystal magnesium alloy wire for acupoint catgut embedding and weight losing and a preparation method of the single-crystal magnesium alloy wire, the chemical composition expression of the single-crystal magnesium alloy wire is Mg-yM-zR, in the formula, y and z represent the mass fraction of M and the mass fraction of R in magnesium alloy respectively, y is larger than or equal to 1.2 and smaller than or equal to 1.7, z is larger than or equal to 0.3 and smaller than or equal to 0.8, and the balance is Mg; m is one of Sr, Ce and Co, and R is one of Ge, Sm and Dy; the wire is prepared through the processes of smelting and casting, homogenizing treatment, hot extrusion, multi-pass cold drawing, intermediate annealing and zone smelting and directional solidification, and has uniform and controllable degradation rate, excellent mechanical property and biocompatibility; after the catgut embedding slimming agent is embedded into the acupuncture point of a human body, fat metabolism is promoted through mild and lasting physical stimulation and chemical ion regulation, intergranular corrosion and premature fracture caused by a polycrystalline structure are avoided, and the safety and durability of a catgut embedding slimming therapy are improved.

The invention discloses an ecological environment material crushing and degrading device and a degrading treatment method, and relates to the technical field of ecological environment material equipment.The device comprises a bottom plate, a degrading barrel and a crushing barrel, the crushing barrel is fixedly connected to the upper portion of the degrading barrel, and the crushing barrel and the degrading barrel are separated through a screen; the rotating shaft penetrates through the crushing barrel and extends to the bottom of the degradation barrel, and the rotating shaft is fixed to the bottom of the degradation barrel; a crushing assembly is mounted in the crushing barrel; a stirring assembly is mounted in the degradation barrel; an oscillation assembly is arranged on the outer wall of the degradation barrel and the outer wall of the crushing barrel and comprises a mounting block, a motor, a rotating plate, an oscillation block, at least two oscillation plates, an elastic rope and a tension rod, the motor applies external force to the oscillation plates under the action of the rotating plate and the tension rod, and the elastic rope is used for transmitting oscillation force between the oscillation plates; and the oscillating force acts on an oscillating block mounted on the outer wall of the crushing barrel to generate an oscillating effect on the crushing barrel. By adopting the device, the degradation efficiency of ecological environment materials can be improved.

The present invention relates to the technical field of mud treatment equipment, and discloses a mud treatment equipment for building pile foundation construction, including a base, which is used as the basic component of the whole device to support and stabilize the whole device; a treatment box, which is arranged at the middle of the top of the base, and is used to assemble and carry various treatment mechanisms and their subordinate structural members; a crushing and separation mechanism, which is arranged at the inner top of the treatment box, and is used to crush and separate the drill cuttings in the input mud liquid. By adding and setting an oxidation decomposition mechanism, compared with traditional chemical treatment methods, high-pressure pulse treatment technology can not only more thoroughly degrade organic matter, reduce the content of organic matter and oil pollutants in the mud liquid, and reduce the cost and complexity of subsequent treatment of the mud liquid, but also no chemical agents need to be added during the pulse treatment process, which reduces the use and treatment costs of chemical agents, and also reduces the pollution of chemicals to the environment.

The present application relates to the technical field of dregs of medicine antibiotic degradation, specifically to a method for antibiotic biological and physical degradation in dregs of medicine, comprising the following steps: step S1, dregs of medicine pretreatment; step S2, strain activation and mixing; step S3, sectional temperature control fermentation; step S4, ultraviolet irradiation; step S5, post-treatment. The present application not only degrades part of antibiotics through early fermentation, but also changes the microstructure of dregs of medicine through microbial metabolism, releases antibiotics from organic matrix, and reduces the energy consumption demand of subsequent irradiation through self-heating. Late ultraviolet-ozone synergistic irradiation not only completely degrades residual antibiotics, but also slightly modifies the organic matter of dregs of medicine using the weak oxidizing property of ozone, thereby improving the nutrient release efficiency when used as organic fertilizer.

The application discloses a ferrous sulfide composite catalyst and a preparation method thereof. The ferrous sulfide composite catalyst comprises a nitrogen-doped carbon layer, and ferrous sulfide nanoparticles are loaded on the nitrogen-doped carbon layer. The preparation method comprises the following steps: mixing iron chloride and ethanol, adding thiourea and o-phenanthroline, stirring, obtaining a precursor dispersion, mixing with melamine, stirring, drying, and obtaining a precursor powder; and calcining the precursor powder, acid washing, and obtaining the ferrous sulfide composite catalyst. The ferrous sulfide composite catalyst has the advantages of excellent catalytic activity, strong stability and the like, can effectively activate an oxidant, a system constructed by the ferrous sulfide composite catalyst can quickly generate a large amount of active species, is favorable for quickly and completely degrading refractory organic pollutants in wastewater, and has high use value and good application prospect. The preparation method also has the advantages of simple process, convenient operation, low cost and the like, and can realize large-scale production and be favorable for industrial application.

The invention discloses a compost reinforced laccase-based remediation method for soil polluted by persistent organic matters. According to the soil remediation method, compost and laccase are added into the soil polluted by the persistent organic matter, the synergistic effect of the compost and the laccase is achieved, and therefore the soil remediation efficiency and effect are remarkably improved. The compost not only provides rich organic matters and nutrient substances for the soil and promotes the growth and activity of soil microorganisms, but also enhances the water-retaining property, air permeability and fertilizer-retaining capacity of the soil and provides a good active environment for laccase. Meanwhile, substances such as humic acid in the compost can interact with the laccase, so that the stability and activity of the laccase are improved, and the laccase can more effectively catalyze and oxidize persistent organic pollutants in the soil. The synergistic effect not only accelerates the degradation process of pollutants, but also improves the thoroughness of repair and reduces the risk of possible secondary pollution.

The application belongs to the technical field of building waste liquid treatment, and particularly relates to a regenerative filter device for building waste liquid emission reduction and an implementation method, which comprises a liquid storage tank, a building waste liquid treatment mechanism arranged on the liquid storage tank, and a partition plate arranged at a middle position on the inner side of the liquid storage tank. The application can effectively reduce the interference on liquid treatment by pre-separating the building waste liquid, and create better conditions for subsequent treatment. In addition, when treating the organic components in the waste liquid, the solvent mixing method is adopted, combined with precise heating and sufficient mixing, which can more completely degrade these organic components. The purity and quality of the liquid can be greatly improved, the organic materials can be effectively decomposed and degraded, the efficiency of liquid treatment is improved, and the negative impact on the environment is greatly reduced through active degradation of the organic components.

The invention discloses a nitro wastewater treatment method and system. On one hand, the treatment method comprises the following steps: S1, pretreating the nitro wastewater; s2, adjusting the pH value of the pretreated nitro wastewater to a suitable range, and electrolyzing; s3, oxidizing the electrolyzed nitro wastewater to obtain pretreated wastewater; and S4, deeply purifying the pretreated wastewater to obtain treated wastewater. On the other hand, the method is implemented through a pretreatment device, an electrolysis device, an oxidation reaction device, a reverse osmosis membrane device and an ultraviolet disinfection device. According to the treatment method of the nitro wastewater, the treatment efficiency of the nitro wastewater is remarkably improved through step-by-step treatment of a plurality of steps, so that the finally treated wastewater reaches the discharge standard. The chemical oxygen demand (COD) of the nitro wastewater treated by the method does not exceed 50mg / L, the biological oxygen demand (BOD) of the nitro wastewater does not exceed 20mg / L, the suspended solid (SS) of the nitro wastewater does not exceed 12mg / L, the concentration of nitro compounds does not exceed 10mg / L, and the nitro wastewater meets the emission standard.

The invention discloses a method for producing coarse feed through fermentation by fully utilizing pot-bottom water and waste distiller's grains in two-step ectopic liquor brewing, and belongs to the technical field of fermented feed. In order to realize white spirit vinasse and bottom pot water resource utilization and high-nutritional-value feed production, the invention provides a method for producing coarse feed by fermentation through two-step ectopic white spirit brewing bottom pot water vinasse full utilization, which comprises the following steps: carrying out activation culture on lactobacillus buchneri to obtain a lactobacillus buchneri activated seed solution; activating and culturing aspergillus oryzae to obtain an aspergillus oryzae activated strain; inoculating the lactobacillus buchneri activated seed solution into a pot-bottom water culture medium to obtain lactobacillus buchneri fermentation liquor; inoculating the aspergillus oryzae activated strain into the bottom pot water culture medium to obtain aspergillus oryzae fermentation liquor; uniformly mixing vinasse, calcium carbonate and sesame seed meal to obtain a fermentation substrate; and uniformly mixing the lactobacillus buchneri fermentation liquor, the aspergillus oryzae fermentation liquor and the fermentation substrate, and fermenting to obtain the vinasse roughage. The fermented products of the waste distiller's grains and the pot bottom water are all used as feed, and no waste is generated.

This invention discloses a method for improving the quality of rapeseed meal through segmented solid-state fermentation at medium and high temperatures, belonging to the field of bio-fermentation and animal feed technology. The method uses unsterilized rapeseed meal directly as raw material. In the first stage, *Bacillus subtilis* is inoculated under medium-temperature (40℃) conditions for aerobic solid-state fermentation, utilizing its high protease production characteristics to deeply hydrolyze large protein molecules, generating easily digestible and absorbable peptides. In the second stage, *Bacillus stearothermophilus* is inoculated under high-temperature (55℃) conditions to continue aerobic fermentation. The high-temperature environment inhibits the growth of secondary metabolic flora, making the fermentation process more controllable, increasing the content of total phenols and flavonoids, and simultaneously degrading anti-nutritional factors. The technology disclosed in this invention is simple to operate and easy to scale up, which can broaden the application of rapeseed meal in the field of high-quality protein feed.

The invention discloses a continuous Fenton oxidation treatment method for medium-low-concentration DMAC (dimethylacetamide) wastewater, which comprises the following steps: continuously feeding the medium-low-concentration DMAC wastewater, acid, a ferrous sulfate solution and hydrogen peroxide into a reaction kettle, and carrying out Fenton oxidation in the reaction kettle; continuously feeding the material subjected to Fenton oxidation into a neutralization kettle, and continuously introducing a sodium hydroxide solution into the neutralization kettle at the same time, so that ferrous sulfate reacts with sodium hydroxide to form ferric hydroxide precipitate; and materials reacted in the neutralization kettle enter a precipitation kettle for standing. The method is simple and easy to implement and high in treatment efficiency, the removal rate of DMAC in the wastewater from the precipitation kettle can reach 95% or above, the treated wastewater can be directly subjected to common aerobic or anaerobic biochemical treatment, and the biochemical effect is good.

The invention relates to the technical field of slurry treatment equipment, and discloses slurry treatment equipment for building pile foundation construction, which comprises a base as a basic component of a whole device and used for supporting and stabilizing the whole device; the treatment box is arranged in the middle of the top end of the base and used for assembling and bearing the treatment mechanisms and the subordinate structural parts of the treatment mechanisms; and the grinding and separating mechanism is arranged at the top of the inner side of the treatment box and used for grinding and separating the drilling slag input into the mud liquid. By adding and arranging the oxygenolysis mechanism, compared with a traditional chemical treatment method and a high-voltage pulse treatment technology, organic matter can be degraded more thoroughly, the content of organic matter and oil contamination pollutants in slurry can be reduced, the cost and complexity of follow-up treatment of the slurry can be reduced, chemical agents do not need to be added in the pulse treatment process, and the treatment cost is reduced. The use and treatment cost of chemical agents is reduced, and meanwhile, the pollution of the chemical agents to the environment is also reduced.

The invention discloses preparation and application of a self-modified iron-based material for removing heavy metal pollutants and organic pollutants. After acidophilic bacteria with stable iron oxidation capacity are subjected to enlarged culture and centrifugal collection in a culture medium, a large number of thalli are obtained. Adding the thalli into a culture medium to synthesize an iron-containing secondary mineral, and performing pyrolysis to form a modified iron-based material; or adding the thalli into an iron-containing culture medium added with aluminum ions with different concentrations to synthesize the aluminum ion modified iron-based biological materials with different morphologies and sizes. The product is synthesized by using bacteria at normal temperature, drives the self-modification process of an iron-based material under a pyrolysis condition or an aluminum ion environment, is green and environment-friendly, can realize controllable synthesis of the product, is suitable for treating different types of wastewater containing heavy metal pollutants and organic pollutants and has high treatment efficiency, the removal rate of Cr (VI) reaches 90% or above, and the product can be widely applied to the treatment of wastewater containing heavy metal pollutants and organic pollutants. The removal rate of organic pollutants reaches 100%, and the material can be recycled and has a wide application prospect.

The utility model discloses flax oil cake production and degradation equipment which comprises a cylinder, a filter tank is fixedly connected in the cylinder, a detachable cylinder cover is fixedly connected at the upper end of the cylinder, a crushing block is arranged in the cylinder and located above the filter tank, the upper end of the crushing block is fixedly connected with symmetrical limiting rods penetrating through the cylinder cover, and the cylinder cover is fixedly connected with the lower end of the cylinder. The other end of the limiting rod is fixedly connected with a fixing plate, a double-shaft motor is fixedly connected to the middle of the upper end of the barrel cover, the output end of the double-shaft motor is fixedly connected with a first rotating shaft and a second rotating shaft which penetrate through the barrel cover, and the other end of the first rotating shaft is fixedly connected with a rotating rod penetrating through the crushing block and the filtering groove; by adopting the crushing block, the limiting block, the reset spring, the bevel gear, the filter tank and the rotating plate, the flax oil cake degradation efficiency can be greatly improved by crushing the flax oil cake, and the flax oil cake can be more fully mixed with a degradation agent, so that the cake is thoroughly degraded, the production quality is improved, and the flax oil cake degradation device is convenient to use.