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45 results about "Oxidative degradation" patented technology

Detection method for evaluating interface oxidative degradation process of carbon capture chemical absorbent

The invention discloses a detection method for evaluating an interface oxidative degradation process of a carbon capture chemical absorbent, belongs to the technical field of absorbent degradation of a carbon capture chemical absorption system, and particularly relates to evaluation of the interface oxidative degradation process. In order to solve the problems that an existing carbon capture chemical absorbent oxidative degradation process evaluation system cannot effectively simulate actual working conditions, cannot reflect an interface oxidative degradation process, is long in experimental period, is discontinuous in detection process and the like, the invention provides a novel detection method. Through the steps of aerosol micro-interface generation, multi-channel oxidative degradation reaction, optical signal real-time dynamic capture and the like, the oxidative degradation reaction process of a chemical absorbent on a micro scale is detected, on one hand, the interface reaction process which cannot be simulated in a volume phase experiment system can be explored; on the other hand, the problems of long experimental period, low detection time resolution and the like in the traditional oxidative degradation reaction process evaluation can be avoided, and a more efficient detection effect is achieved.
Owner:ZHEJIANG UNIV

A dual-targeting oil control peptide co-amorphous assembly, and a preparation method and application thereof

This invention belongs to the fields of biomedicine, beauty, and personal care health technology, and discloses a dual-target oil-controlling peptide co-amorphous assembly, its preparation method, and its application. The method involves adding capryloylglycine and acetyl tetrapeptide-5 to an alcohol solution, heating to dissolve, rotary evaporating, and drying to obtain a co-amorphous compound. This compound is then mixed with a cyclodextrin compound and water, rotary evaporating, and drying to obtain the dual-target oil-controlling peptide co-amorphous assembly. This invention employs a co-amorphous combination with cyclodextrin inclusion to assemble acetyl tetrapeptide-5 and capryloylglycine, solving the problem of their large solubility differences and difficulty in coexistence, and significantly improving the solubility of capryloylglycine. This assembly enables simultaneous transdermal delivery of the two active components through nano-assembly, helping to enhance the stability of acetyl tetrapeptide-5 and reduce its oxidative degradation. The two components synergistically control oil through a dual pathway of inhibiting 5α-reductase and targeting the MC5R receptor, respectively, exhibiting superior bioavailability and efficacy compared to a single component.
Owner:HUIBO BIOTECHNOLOGY (GUANGZHOU) CO LTD

Method for preparing biological carbon fertilizer by quickly decomposing agricultural straws and returning biological carbon fertilizer to field nearby and application of biological carbon fertilizer

The invention belongs to the field of biological carbon fertilizers, and provides a method for preparing a biological carbon fertilizer from agricultural straws through rapid decomposition and returning the biological carbon fertilizer to the field nearby, which comprises the following steps: a, crushing the agricultural straws into crushed materials with the length of not more than 3mm; b, adding water which is 2-3 times of the weight of the crushed material and a composite oxidative degradation agent which accounts for 2-3% of the dry weight of the crushed material into the crushed material, and stirring and mixing for 15-20 minutes to obtain a semi-finished product of the biological carbon fertilizer; and c, directly returning the semi-finished product of the biological carbon fertilizer to the field or storing and decomposing. According to the invention, the agricultural straws can be quickly decomposed and cured, and the treated biological carbon fertilizer contains more than 70% of organic matters and more than 5% of humic acid; and bacteria and insect pests in the straws are killed, the carbon source of the soil is increased, the structure of the soil is improved, and the water and fertilizer retention capability of the soil is enhanced.
Owner:韩东威

Programmable atmosphere carbon dioxide absorbent forced oxidative degradation test system and method

The invention discloses a programmable atmosphere carbon dioxide absorbent forced oxidative degradation test system and method, and the system comprises a gas supply and mixing module which is used for generating simulated flue gas with programmable components and humidity through a multi-path gas source and a mass flow controller; the constant-temperature and constant-pressure reaction module comprises a reaction kettle with heating, stirring and pressure and temperature monitoring functions; the isobaric sampling and re-pressing gas supply module is used for maintaining the system pressure and atmosphere stability through a buffer cavity and a re-pressing branch during sampling; and an integrated control module. The method comprises the following steps: preparing a system, setting parameters, generating a simulated atmosphere, establishing constant-temperature and constant-pressure reaction conditions, and carrying out isobaric sampling and automatic re-pressing compensation. By integrating programmable atmosphere control and a unique isobaric sampling and re-pressing structure, long-term and multi-frequency stable sampling in a simulated real flue gas environment is realized, so that high-fidelity and high-repeatability degradation test data is obtained.
Owner:SHANGHAI UNIV OF ENG SCI

A method for simultaneously repairing water body and sediment by using a microbial electrochemical repairing device

This invention belongs to the field of water environment treatment and restoration technology, specifically involving a method for simultaneous restoration of water bodies and sediments using a microbial electrochemical restoration device. The restoration method provided in this invention differs from traditional methods that enhance the transport of electron acceptors such as oxygen or nitrates into the sediment. Instead, it can sequentially form two reaction zones, aerobic and anaerobic, in the longitudinal section of a device. In the anaerobic zone (sediment), electrons from pollutants are directionally pumped out to the water body driven by the redox potential difference between the sediment and water phases. Therefore, pollutants in the sediment and water body can undergo oxidative degradation and reductive degradation, respectively, thereby achieving simultaneous restoration of water bodies and sediments.
Owner:HARBIN INST OF TECH

Application of indantrione color reagent in determination of polyamide hydrolysis product and method for determining content of polyamide hydrolysis product

PendingCN122505833AInhibition of oxidative degradationavoid interferenceSodium acetatePolyamide
The application relates to the field of polyamide material analysis, and discloses application of an indantrione color developing reagent in determination of polyamide hydrolysis products and a method for determining the content of the polyamide hydrolysis products, wherein the indantrione color developing reagent contains an indantrione-ethylene glycol solution and an acetic acid-sodium acetate buffer solution. The application provided in the application adopts ethylene glycol as a single solvent of the indantrione, effectively inhibits oxidative degradation of the indantrione under high-temperature color developing conditions, and enables uniform color development of oligomers. The application does not add antioxidants, avoids interference with color developing reactions, is accurate and reliable in determination, is simple in preparation due to the single solvent, has a long storage time under light shielding at 4 DEG C, and can not only accurately determine monomers of polyamides and dimers to heptamers of the monomers, but also accurately determine various polyamide hydrolysis products, and has a good linear relationship.
Owner:NANJING TECH UNIV

Carbon dioxide absorbent oxidative degradation analysis device

The utility model discloses a carbon dioxide absorbent oxidative degradation analysis device, which belongs to the technical field of detection devices, and is characterized by comprising a base, a tank body is fixedly connected to the left side of the top of the base, a mixing assembly is fixedly connected to the inside of the tank body, and a detection assembly is fixedly connected to the right side of the top of the tank body; the mixing assembly comprises a storage pipe, and solves the problems that an existing analysis device is inconvenient to increase the contact area of a reagent and air, and in actual detection, due to the limitation of the device structure, the reagent and the air are inconvenient to drive to fully flow, so that the contact area of the air and the reagent in a tank is not good, and the air and the reagent cannot be fully mixed; the problems that in the prior art, a carbon dioxide absorbent and oxygen and other components in air are not fully subjected to an oxidation reaction, the oxidative degradation process of the absorbent in actual use is difficult to truly simulate, the analysis result is affected, and the practicability of the device is reduced are solved.
Owner:CHANGZHOU YIYONG TECH CO LTD

Coordination polymer-based in-vehicle aldehyde substance purification filler and preparation method thereof

The invention belongs to the technical field of high polymer materials, and particularly relates to an in-vehicle aldehyde substance purification filler based on a coordination polymer and a preparation method. The in-vehicle aldehyde substance purification filler comprises an aldehyde targeting coordination polymer and a carrier with a purification function, and the aldehyde targeting coordination polymer is loaded on the carrier with the purification function. According to the technical scheme, the purification efficiency of the in-vehicle aldehyde substance purification filler based on the coordination polymer is remarkably improved, through precise molecular design of the aldehyde targeted coordination polymer, the specific pore diameter of the aldehyde targeted coordination polymer is highly matched with the molecular size of formaldehyde and acetaldehyde, and selective adsorption of aldehyde substances is achieved. Metal active sites Cu or Zn in the coordination polymer can catalyze aldehyde molecules to be subjected to oxidative degradation reaction, the highest formaldehyde degradation rate within 6 hours reaches 88.6%, the acetaldehyde degradation rate reaches 84.2%, and the equilibrium adsorption capacity reaches 22.5 mg / g and is 2.5 times or above that of a traditional mineral adsorption material.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Composite particle for repairing polluted water body as well as preparation method and application of composite particle

The invention relates to composite particles for repairing polluted water and a preparation method and application of the composite particles, and belongs to the technical field of environmental functional materials and water pollution governing. Through double chemical modification of acrylic acid grafting and glutaraldehyde crosslinking, a sodium alginate / chitosan charcoal carrier is modified into a high-strength pH-responsive intelligent carrier, and the composite particles are used for repairing the polluted water. And then the plant growth-promoting bacteria and sodium percarbonate are compounded and granulated. After being added, the carrier can effectively resist SPC initial oxidation impact, protect the activity of thalli, intelligently release PGPB along with the change of pH, accurately link and deepen the oxidative degradation process, and realize efficient and deep mineralization of pollutants. Experiments show that the microbial protection rate of the material is greater than 95%, the 72-hour phenol mineralization rate reaches 85%, and the material is remarkably superior to that of a traditional method. According to the invention, the problem of compatibility between the oxidant and microorganisms is solved, and a new technology is provided for efficient and green water body remediation.
Owner:JIANGSU ZHONGYI ECOLOGICAL SOIL INST +2

A composite slow-release material for groundwater remediation and a preparation process thereof

The application relates to a composite slow-release material for groundwater remediation and a preparation process thereof, and relates to the technical field of groundwater remediation materials. The preparation raw materials comprise the following components in mass fractions: 20-40 parts of a composite oxidant, 30-50 parts of an inner layer wall material, 10-20 parts of glucose, 40-60 parts of an outer layer wall material and 5-15 parts of a Fenton self-mesoporous titanium dioxide. The preparation process comprises the following steps: preparing the Fenton self-mesoporous titanium dioxide, preparing an inner layer microcapsule and preparing the composite slow-release material. The application has the effect of improving the pollutant degradation performance of the composite slow-release material. The composite slow-release material has good oxidative degradation capacity, can promote the growth and metabolism of microorganisms in groundwater, cooperates with the microorganisms to degrade pollutants, and improves the removal efficiency of the pollutants and the persistence of the remediation effect.
Owner:INST OF GEOGRAPHY HENAN ACAD OF SCI

High-precision acid-resistant photoresist as well as preparation and use methods thereof

The invention relates to the technical field of semiconductors, in particular to a high-precision acid-resistant photoresist and a preparation and use method thereof, and the high-precision acid-resistant photoresist comprises a first resin matrix, a second resin matrix, a solvent system, a photosensitizer, a functional auxiliary agent, a first auxiliary agent, a second auxiliary agent and a third auxiliary agent. According to the high-precision acid-resistant photoresist and the preparation and use methods thereof, by introducing trifluoromethyl styrene and utilizing the chemical stability of a C-F bond, it is ensured that a pattern is kept complete when the photoresist is soaked in hydrofluoric acid, so that the dark etching rate and the etching resistance are improved, meanwhile, the combination of linear phenolic resin and bisphenol A epoxy resin is designed, and the high-precision acid-resistant photoresist is prepared. The resistance to an acid solution is reserved, and interface bonding is enhanced; the hindered phenol antioxidant is added to solve the problem of oxidative degradation, the storage period of the photoresist is prolonged, the surface tension of a coating is reduced through the flatting agent, a chemical bonding bridge of the photoresist-silicon wafer is constructed by utilizing the coupling agent, and the o-quinonediazide photosensitizer is designed to reduce the line width deviation of a developed pattern.
Owner:GUANGDONG ZIXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Method for manufacturing recycled polyolefin film

PendingJP2026063937APolymer sciencePolyolefin
To provide a method for producing recycled polyolefin film that can manufacture films in which oxidative degradation is suppressed without the addition of antioxidants. [Solution] The process includes manufacturing a polyolefin film by extrusion molding from pellet raw materials including virgin polyolefin pellets and non-melting recycled polyolefin pellets. A method for producing recycled polyolefin film, wherein the ratio (T2 / T1) shown in the following formula (1) is 0.8 or greater. T2 / T1···(1) [In formula (1), T1 represents the oxidation induction time measured under an oxygen atmosphere at 200°C in the state before pelletizing of non-melting recycled polyolefin pellets, and T2 represents the oxidation induction time measured under an oxygen atmosphere at 200°C for non-melting recycled polyolefin pellets.]
Owner:TOPPAN HOLDINGS INC

Controllable order-reducing and targeted functional repairing method for waste reverse osmosis membrane

The invention discloses a controllable order reduction and targeted functional repair method of a waste reverse osmosis membrane, and relates to the technical field of recycling of waste reverse osmosis membranes. Comprising the following steps: immersing the waste reverse osmosis membrane into a compound oxidant solution for oxidative degradation to obtain a regenerated ultramicro filtration porous membrane; at 45-55 DEG C, immersing the regenerated ultramicro filtration porous membrane into a solution containing a first active amino group to obtain a targeted pre-activated porous membrane; the surface of the targeted pre-activated porous membrane is kept dry or wet, the targeted pre-activated porous membrane is immersed in a solution containing second active amido, cleaning is conducted after 5-15 min, and the target functionalized regenerated membrane is obtained. On the basis of a specific group at the damaged structure of the regenerated membrane, targeted positioning repair is performed on the damaged morphology and pore structure, functional groups are given to the surface of the membrane, the permeation selectivity and the anti-pollution performance of the membrane are improved, and the regenerated ultramicro filter membrane with excellent comprehensive performance is obtained.
Owner:HENAN NORMAL UNIV

CoSe nanocrystalline catalytic material and preparation method and application thereof

The invention belongs to the technical field of crystal catalytic material preparation and pollutant degradation, and relates to a CoSe nanocrystalline catalytic material as well as a preparation method and application thereof. The chemical formula of the CoSe nanocrystal is CoSe, the CoSe nanocrystal is formed by assembling Co atoms and Se atoms through covalent bonds, the crystal size is concentrated at 5-20 nm, and Co exists in a mixed valence of + 2 / + 3. The nanocrystal is synthesized in situ through controllable pyrolysis and gas-phase selenylation by combining coordination self-assembly with in-situ phase engineering. The CoSe nanocrystalline material is used as a peroxymonosulfate (PMS) activation catalyst for oxidative degradation of tetracycline.
Owner:DEZHOU UNIV +1

High capacity carbon dioxide absorbent solvent resistant to oxidative degradation

An oxidation resistant absorbent for capturing carbon dioxide from a gas stream. The oxidation resistant absorbent includes an alkanolamine with a weight percent in a range of 10 wt. % to 35 wt. % to a total amount of the oxidation resistant absorbent, a base with a weight percent in a range of 1 wt. % to 15 wt. % to a total amount of the oxidation resistant absorbent, a plurality of nanoparticles with a weight percent in a range of 0.1 wt. % to 3 wt. % to a total amount of the oxidation resistant absorbent, and water.
Owner:SCG INC

Water-soluble film and package

Provided is a water-soluble film that can balance water solubility and resistance to oxidative degradation. The water-soluble film of the present invention contains a polyvinyl alcohol resin, has a surface in which the proportion of carbonyl groups in the total carbon bonds obtained by X-ray photoelectron spectroscopy is 1 to 5% on at least one side, and has a total dissolution time in water at 10°C of 120 seconds or less.
Owner:KURARAY CO LTD

Aging and heat resistant modified asphalt for road paving

The application provides an anti-aging and heat-resistant modified asphalt for road paving and belongs to the technical field of asphalt materials. The application realizes the improvement of anti-aging and high-temperature resistance through the synergistic effect of multiple components; the application constructs a network structure through the two-step reaction of vinyl silicon grafting and metallocene titanium hydrogenation with SBS as a base body, simultaneously introduces functional additives such as antioxidants and epoxy soybean oil, and forms a physical-chemical dual anti-aging mechanism. The application considers the key performance requirements such as high-temperature stability (SBS network), anti-ultraviolet aging (nano zinc oxide) and anti-oxidative degradation (phosphite) in the proportioning of components. The service life of road asphalt under high temperature is greatly prolonged.
Owner:GUANGDONG METALLURGICAL & ARCHITECTURAL DESIGN INST

A kind of high transparent FDM 3D printing special PLA toughening consumables

PendingCN122344396AAntioxidantEngineering
This invention discloses a high-transparency FDM 3D printing-specific PLA toughening filament, comprising, by weight: 96.7% PLA 101; 3% ATBC; and 0.3% compound antioxidant; wherein the compound antioxidant is prepared by compounding antioxidant 1010 and antioxidant 168 in a 1:1 ratio. A method for preparing the high-transparency FDM 3D printing-specific PLA toughening filament includes the following steps: the raw materials are vacuum dried and then mixed uniformly at 60℃ for 4 hours, directly fed into a single-screw extruder, with five temperature control stages of 180℃ / 190℃ / 200℃ / 205℃ / 215℃, a take-up speed of 100m / min, cooling water temperature of 60℃ in the first stage and 50℃ in the second stage, online diameter adjustment, and winding to obtain a 1.75mm±0.05mm filament. The invention achieves the following results: the oxidative degradation rate of PLA molecular chains is reduced by more than 65%, the average spherulite size is ≤5μm, and the crystallinity is controlled at 18%; the light transmittance of the consumable is ≥92%, the haze is ≤1.5%, the yellowing index ΔE after 72h accelerated aging is ≤1.0, the elongation at break is ≥12% (while also considering toughness), the printed parts have a smooth, hazy surface, the interlayer shear strength is ≥3.2MPa, and the dimensional accuracy is stable, meeting the requirements of high transparency scenarios such as medical models and transparent shells.
Owner:GUANGDONG SANLV TECH CO LTD

Highly oil-resistant PVC protective gloves with thickened cuffs and preparation method of highly oil-resistant PVC protective gloves

The invention discloses a high-oil-resistance cuff-thickened PVC (polyvinyl chloride) protective glove and a preparation method thereof, and relates to the technical field of high-molecular compound composition PVC gloves. The high-oil-resistant cuff-thickened PVC protective gloves are prepared from the following raw materials in parts by mass: 100 parts of PVC paste resin, 10-15 parts of polytetrafluoroethylene, 60-90 parts of an environment-friendly plasticizer, 2-5 parts of a heat stabilizer, 0.5-2 parts of a viscosity reducer, 3-8 parts of a foaming agent, 1-5 parts of color paste, 10-30 parts of filler and 0.5-1.5 parts of an anti-aging agent. Compared with the prior art, the anti-aging agent with a specific structure is introduced, so that the oxidative degradation and photo-oxidative aging trend of a PVC molecular chain is remarkably inhibited. The N-H group of the anti-aging agent efficiently captures free radicals, and the aromatic ring structure absorbs ultraviolet light energy to form a physical barrier, so that the damage of environmental factors (such as oxygen, heat and ultraviolet light) to the material is reduced.
Owner:TAIZHOU DARDEN SECURITY TECH CO LTD

Intelligent processing method and device for reclamation mud chemical additive

The present application relates to the technical field of slurry treatment, in particular to an intelligent processing method and device for reclamation slurry chemical additives. The method comprises the following steps: S1. slurry input and pollution detection; S2. slurry pretreatment; S3. selection and preparation of peroxo organic acid; S4. material conveying; S5. oxidative degradation; S6. UV treatment; S7. detection and evaluation; S8. intelligent control system. The present application selects peroxo organic acid to remove reclamation slurry chemical additives, optimizes the use conditions and process parameters of peroxo organic acid, realizes efficient and rapid removal of chemical additives in reclamation slurry, avoids secondary pollution, and protects the marine ecological environment. In combination with a neural network system, multiple parameters in the processing process are modeled, predicted and feedback controlled, so that adaptive adjustment and dynamic optimization of the processing technology are realized.
Owner:SHENZHEN UNIV +3

Method for oxidation removal and heavy metal toxicity inhibition of complex-state chromium in wastewater by iron-based secondary mineral mediated biological Fenton reaction and application of method for oxidation removal and heavy metal toxicity inhibition of complex-state chromium in wastewater by iron-based secondary mineral mediated biological Fenton reaction

ActiveCN122010314ATreatment using aerobic processesBacteriaOver oxidationSecondary mineral
The invention discloses a method for oxidation removal and heavy metal toxicity inhibition of complex chromium in wastewater through iron-based secondary mineral mediated biological Fenton reaction and application. According to the method, Fenton reaction is induced through atmosphere regulation and control biological / mineral action, and oxidative degradation of complex-state chromium and heavy metal toxicity inhibition are achieved. The method comprises the following steps: reducing iron by facultative dissimilatory iron reducing bacteria and iron-based secondary minerals under anaerobic conditions; aeration is carried out, and accumulated ferrous iron and oxygen are utilized to initiate Fenton reaction so as to oxidize the organic complexing agent to realize complex breaking; converting to an anaerobic state, and reducing Cr (VI) generated by excessive oxidation; and circularly executing the aerobic / anaerobic operation until the wastewater reaches the standard. The method realizes advanced treatment of the complex chromium wastewater through a single reactor, and has the advantages of simple process, easily available materials and low operation cost.
Owner:ZHILAN ECOLOGICAL ENVIRONMENT CONSTR CO LTD

A time sequence control type composite pollution remediation material for facility agriculture soil and a preparation method and application thereof

The application discloses a time sequence control type composite pollution repair material for facility agriculture soil and a preparation method and application thereof, and belongs to the technical field of soil repair. The repair material is a three-layer core-shell structure particle, which comprises, from inside to outside, an inner core layer composed of biodegradable polyester wrapping pesticide degrading enzyme and pesticide adsorbent, a middle layer composed of water / ion responsive hydrogel wrapping heavy metal fixing agent and oxidative degradation catalyst, and an outer shell layer composed of brittle degradable polymer wrapping micro / nano plastic surface capping agent. The repair material realizes time sequence and synergistic repair of micro / nano plastic, available Cd and malathion by triggering the release of the outer shell layer through plowing mechanical force, triggering the slow release of the middle layer through irrigation water response, and triggering the release of the inner core layer through rhizosphere microbial enzyme. The material has simple preparation process, convenient application and good application prospect.
Owner:LINYI UNIVERSITY +1

Waterproof net film for plastic greenhouse

ActiveCN120623611BAdvantages FlexibilityAdvantages Impact ResistanceElastomerPolymer science
This invention discloses a waterproof mesh film for plastic greenhouses, relating to the technical field of high-toughness, UV-resistant polymer compositions. The waterproof mesh film for plastic greenhouses is prepared from raw materials comprising the following parts by weight: 60-80 parts polyolefin resin, 15-35 parts polyolefin elastomer, 10-25 parts filler and reinforcing agent, 0.3-1.5 parts light stabilizer, 0.2-0.8 parts antioxidant, and 0.5-2 parts processing aid. The addition of light stabilizer and antioxidant, and their synergistic effect, effectively prevents the photo-oxidation reaction and thermal oxidative degradation of polymer materials under ultraviolet radiation, significantly improving the UV aging resistance of the waterproof mesh film and reducing problems such as material performance deterioration, discoloration, fading, and decreased waterproof performance caused by long-term outdoor use. The waterproof mesh film of this invention exhibits significant advantages in flexibility and impact resistance, making it less prone to tearing and damage when facing harsh weather, frequent folding, or contact with sharp objects, thus extending its service life.
Owner:CHANGZHOU JINGSHANG HORTICULTURE CO LTD

Preparation and application method of catalyst for oxidative degradation of antibiotic wastewater by room temperature activated peroxyacetic acid

The application discloses a preparation method and application method of a room-temperature activated peracetic acid oxidative degradation antibiotic wastewater catalyst. The preparation method comprises the following steps: taking anhydrous manganese chloride and copper acetate monohydrate, dissolving in water, then adding hexagonal boron nitride powder and cetyltrimethylammonium bromide, stirring to obtain a mixed solution; the mixed solution is moved into a microwave synthesis reaction kettle for a synthesis reaction; after the reaction is completed, the synthesis product is washed, dried and ground to obtain a composite catalyst. The application method comprises the following steps: the hexagonal boron nitride nanosheet modified metal manganese element is used to replace the cupric oxychloride composite catalyst, and is added into a reactor containing antibiotic wastewater to be degraded; after adsorption equilibrium is reached, a peracetic acid solution is added to initiate the degradation reaction of the antibiotic. The catalyst prepared by the application has excellent ability of oxidatively degrading antibiotic wastewater in a room-temperature activated peracetic acid system, has strong environmental interference resistance, and has good reusability.
Owner:QIQIHAR UNIVERSITY

Coated polyethylene anti-dust high-thermal-insulation long-acting flow-droplet-eliminating fog-preventing shed film and preparation method thereof

The present application belongs to the technical field of agricultural film preparation, and particularly relates to a coated polyethylene anti-pesticide dustproof high-heat-preservation long-acting flow-dripping mist-eliminating shed film and a preparation method thereof. The shed film adds dustproof masterbatch and acid-resistant aging-resistant masterbatch in the inner layer, respectively, and the inner layer faces the outside of the shed after the shed is buckled, thereby playing the functions of self-cleaning dustproof and anti-pesticide aging resistance. The water slurry stone heat preservation masterbatch and the acid-resistant aging-resistant masterbatch are added in the secondary inner layer, thereby playing the heat preservation function. The water slurry stone heat preservation masterbatch and the acid-resistant aging-resistant masterbatch are added in the middle layer, thereby mainly playing the function of enhancing the high heat preservation and anti-pesticide aging resistance. The acid-resistant aging-resistant masterbatch and the heat preservation masterbatch are added in the secondary outer layer, thereby mainly playing the functions of enhancing the anti-pesticide aging resistance and heat preservation resistance. The acid-resistant aging-resistant masterbatch is added in the outer layer, thereby playing the functions of enhancing the anti-pesticide resistance and anti-photothermal oxidative degradation. The coating layer is a long-acting flow-dripping mist-eliminating layer, mainly playing the functions of long-acting elimination of the mist in the shed and improvement of the light transmittance, thereby being beneficial to the photosynthesis of crops.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Composite mulching film with high mechanical property, high biodegradation rate and low permeable rate and preparation method thereof

The invention discloses a composite mulching film with high mechanical property, high biodegradation rate and low permeable rate and a preparation method of the composite mulching film, and belongs to the technical field of high polymer material modification and environmental degradation plastics. The composite mulching film with the high mechanical property, the high biodegradation rate and the low permeable rate comprises a laminated structure composed of a core layer and an outer layer; the raw materials of the outer layer comprise polyethylene resin as well as an oxygen-promoting degradation agent and a compatilizer which are dispersed in the polyethylene resin; the raw material of the core layer comprises poly (butylene adipate-co-terephthalate) resin. The invention aims to overcome the inherent defect that in the prior art, the biodegradation rate, the mechanical property of a film and the low permeable rate are difficult to consider at the same time, the easily biodegradable PBAT material is used as the core layer, the core layer is preferentially degraded in the degradation process, and high-activity chemical species are continuously generated and provided; the PE layers containing the oxygen-promoting degradation agent are arranged on the two sides of the core layer and serve as the main place of the oxidative degradation reaction.
Owner:DEZHOU ACAD OF AGRI SCI

Photocatalyst based on g-C3N4 surface defect anchoring Ni / Mn Janus diatomic sites as well as preparation method and application

The invention discloses a photocatalyst based on g-C3N4 surface defect anchoring Ni / Mn Janus diatomic sites as well as a preparation method and application thereof, the photocatalyst comprises g-C3N4 with surface defects and Ni and Mn loaded on the g-C3N4, and the Ni and the Mn are anchored at the surface defects of the g-C3N4 and form a Janus structure. The application refers to application in photocatalytic CO2 reduction coupling antibiotic oxidation reaction. The photocatalyst disclosed by the invention can realize an efficient coupling reaction of CO2 reduction and antibiotic oxidation, and under the driving of visible light, efficient reduction of CO2 and oxidative degradation of antibiotics in a water body are realized at the same time. By regulating and controlling the surface electron structure and active site distribution of the catalyst, two reaction paths are synergistically carried out, and the catalytic effect of'one stone and two birds' is achieved.
Owner:HUAIBEI NORMAL UNIVERSITY

Sludge-free advanced treatment system and process for chemical wastewater

The invention discloses a sludge-free chemical wastewater advanced treatment system and a process thereof, and relates to the technical field of wastewater treatment. According to the invention, a full aerobic tank in an MBBR form is adopted at the front end, and biofilm culturing starting is carried out by using an efficient biological carrier and a specific functional microbial agent, so that the number and activity of microorganisms are remarkably improved, and rapid oxidative degradation of organic matters is ensured; and the rear-end iron-carbon micro-electrolysis biological filter tank is combined with an iron-carbon primary battery effect and a biological membrane degradation mechanism, so that the molecular structure of the refractory organic matters can be broken through an electrochemical effect, the biodegradability of the refractory organic matters is improved, a stable environment can be provided for a biological filter membrane, and the biochemistry and the electrochemistry have a synergistic effect, so that the deep removal of pollutants is realized.
Owner:CHONGQING SHIJI ECOLOGICAL ENVIRONMENT TECH CO LTD

A liquid seaweed fertilizer and a method of making the same

The application discloses a kind of liquid fertilizer containing seaweed and a preparation method thereof, and ingredients include, by mass fraction: seaweed enzymatic solution 100 parts, vinasse extract 10-20 parts, calcium bentonite 6-10 parts, kelp fucoidan 4-6 parts, zinc citrate 0.3-0.7 parts.The preparation method of the liquid fertilizer containing seaweed provided by the application pretreats seaweed raw materials with vinasse extract, softens seaweed cell walls with organic acid and amino acid components, and reduces the amount of complex enzyme used;By compounding calcium bentonite with kelp fucoidan to form a slow-release carrier, active substances such as gibberellins and brown algal polyphenols are effectively adsorbed, oxidative degradation loss is reduced, and the field fertilizer efficiency period is extended;Through the synergistic effect of vinasse extract pretreatment and bentonite carrier, the industry problem of low active ingredient retention rate in seaweed acid extraction process is solved, the retention rate of gibberellin in fertilizer and the dissolution rate of seaweed acid are significantly improved, and the growth level of crops is improved.
Owner:XINYANGFENG AGRI TECH CO LTD