17 results about "Antibiotic degradation" patented technology

The invention belongs to the technical field of environmental pollution treatment and water treatment, and particularly relates to a method for degrading organic pollutants by coupling a nano confinement catalytic membrane with micro-nano bubbles. The method comprises the following steps: adding micro-nano bubble water and an oxidizing agent into an organic pollutant solution, regulating the pH value to prepare a pretreatment mixed solution, and enabling the pretreatment mixed solution to pass through a nano confinement catalytic membrane to catalytically degrade the organic pollutants, the nano confinement catalytic membrane comprises an organic polymer membrane substrate and a catalyst loaded in the organic polymer membrane substrate; the loading capacity of the catalyst is 5 to 30 mg. The problems that antibiotics are difficult to degrade, pollutant concentration is easily caused by membrane separation, a catalyst is difficult to recycle, and membrane flux and catalytic activity are difficult to balance are solved, the method has the advantages of being high in degradation efficiency, stable in membrane flux, easy to recycle the catalyst and wide in application range, and wastewater containing organic pollutants can be efficiently treated.

The application discloses a kind of ultra-high temperature aerobic fermentation composite microbial inoculum for treating organic solid waste, belonging to solid waste biological treatment technical field.The composite microbial inoculum is compounded by functional microbial inoculum group and auxiliary group, the functional microbial inoculum group includes thermophilic side spore mold agent, thermophilic bacillus agent, high-temperature actinomycete agent, fecal alkali-producing bacteria agent, the auxiliary group is composed of modified diatomite, coated fungus bran carbon, oyster shell calcined powder, kitchen waste pretreatment powder, sodium lignosulfonate and sodium gluconate.The composite microbial inoculum is adapted to municipal sludge, livestock and poultry manure, open-air strip-pile type fermentation of kitchen waste mixed solid waste, can be quickly heated to 80 DEG C or more, ultra-high temperature duration is greater than or equal to 7.8 days, roundworm egg inactivation rate is greater than or equal to 99.9%, comprehensive antibiotic degradation rate is greater than or equal to 90.2%, heavy metal comprehensive passivation rate is greater than or equal to 85.5%, effectively control odor emission, can be applied to municipal sludge, livestock and poultry manure, open-air strip-pile type fermentation of kitchen waste mixed solid waste, and has good industrial application value.

This invention discloses an iron-based nano-earthworm hybrid and its application in the degradation of organic solid waste and antibiotics. The iron-based nano-earthworm hybrid is composed of a live earthworm and a nano-iron-based compound coated with mucus secreted by the earthworm. The method for preparing this iron-based nano-earthworm hybrid includes the following steps: S1. Pretreatment of nanomaterials to obtain a suspension for later use; S2. Earthworm mucus induction to obtain domesticated earthworms; S3. In-situ construction of the hybrid to obtain an iron-based nano-earthworm hybrid. This invention constructs a hybrid system by combining nano-ferric oxide with earthworm mucus. The concentration of hydroxyl radicals in the system can be increased by 4-6 times, and the concentration of hydrogen peroxide can be increased by more than 1 time, effectively improving the removal rate of various types of antibiotics. The removal rate of some antibiotics can reach more than 95%, representing a breakthrough improvement in antibiotic degradation efficiency.

This invention discloses an interlayer confined heteroatom-doped carbon material, its preparation method, and its applications. Utilizing the tunable size of LDH crystals, the interlayer confined nanoscale of the carbon material can be precisely controlled by adjusting the synthesis pH. The controllable structure directly enhances reaction kinetics, making the reduction efficiency of Fe³⁺ by the CNS material more than 2.5 times that of traditional carbon materials, while simultaneously significantly improving antibiotic degradation capabilities. The interlayer confined space functions as both a rapid mass transfer channel and a nano-enrichment device, greatly increasing the reactant transport rate and local concentration. Combined with heteroatom doping, it significantly enhances the adsorption and electron transfer capabilities for Fe³⁺, effectively suppressing iron ion hydrolysis and iron sludge formation, simultaneously addressing the three major drawbacks of traditional Fenton processes and bulk carbon-based materials: low utilization of active sites, slow mass transfer, and low iron recycling efficiency. The process is simple and controllable, uses economical raw materials, and the resulting solid material is easy to recycle, making it suitable for the efficient treatment of recalcitrant organic pollutants in rural sewage, industrial wastewater, and other scenarios, demonstrating strong practicality.

This invention provides a sulfonamide antibiotic-degrading bacterium, a microbial agent, and their applications. The sulfonamide antibiotic-degrading bacterium, identified as *Klebsiella Michigani*, is deposited at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC No. 39134, on January 22, 2026. This sulfonamide antibiotic-degrading bacterium can be used to degrade various sulfonamide antibiotics in wastewater. This invention isolates, screens, enriches, and domesticates a strain with sulfonamide antibiotic-degrading efficacy from wastewater treatment plant sludge. This strain, identified as *Klebsiella Michigani* by 16S rDNA sequencing, lays a theoretical and strain foundation for the large-scale application of highly efficient sulfonamide antibiotic-degrading bacteria, broadens the spectrum of microbial resources for this type of degradation, and opens up a green and efficient biological treatment pathway to solve the problem of sulfonamide antibiotic residue pollution.

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.

This invention discloses a dual-functional material based on steel slag, its preparation method, and its application, belonging to the field of solid waste resource utilization and environmental pollution control technology. The method uses steel slag, a solid waste from the iron and steel industry, as raw material, and prepares an iron-rich catalyst and a calcium-rich adsorbent through selective leaching. The iron-rich catalyst efficiently activates PMS in a photocatalytic persulfate (PMS) system to degrade tetracycline antibiotics in water; simultaneously, the calcium-rich adsorbent can capture CO2 generated during antibiotic degradation in situ, thus achieving multiple objectives of solid waste resource utilization and pollution and carbon reduction. This invention utilizes widely available and inexpensive raw materials and employs a simple process, effectively improving the high-value-added resource utilization level of steel slag and overcoming the carbon emission problems associated with traditional advanced oxidation technologies, providing a new approach for synergistic technologies of wastewater treatment and carbon reduction.

The application provides a TiO2 / g-C3N4 S-type heterojunction photocatalyst with a close interface, which is constructed based on a one-step in-situ thermal polymerization strategy and is used for deep purification of antibiotic wastewater under visible light driving. In the application, anatase TiO2 nanoparticles and melamine precursors are ground and uniformly mixed at a mass ratio of 4:9, calcined at 550 DEG C for 2h for in-situ thermal polymerization, a chemical bonding close heterojunction interface is constructed, and the defects of a large charge transfer resistance of a traditional physical mixing interface are solved. The composite material has a developed mesoporous structure, and the internal strong electric field and S-type charge transfer mechanism significantly improve the photocatalytic performance. Tetracycline hydrochloride can be completely degraded within 70 min under visible light, the environmental interference resistance is strong, the cycle stability is excellent, and the degradation rate is still more than 83% after 4 cycles. The method is simple in process, conforms to atomic economy, and provides a new scheme for the development of efficient heterojunction photocatalytic materials.

This invention belongs to the field of photocatalysis technology, specifically relating to a microbial-MOF photosensitizing material, its preparation method, and its application. The microbial-MOF photosensitizing material comprises antibiotic-degrading bacteria and a metal-organic framework shell encapsulating the surface of the antibiotic-degrading bacteria. The metal-organic framework in the microbial-MOF photosensitizing material provided by this invention has a porous structure, enabling the encapsulated microorganisms to receive sufficient light, enhancing light absorption capacity, and facilitating rapid carrier migration. Ultimately, this gives the microbial-MOF photosensitizing material superior photoelectrocatalytic activity, lowers the photoelectrocatalytic reaction energy barrier, and increases the kinetics of antibiotic degradation.

This application provides a *Staphylococcus pseudoci* AT8 strain for degrading antibiotics and its application. The *Staphylococcus pseudoci* is a species of Staphylococcus (…). Staphylococcus The *Staphylococcus pseudocarpa* species, having a 16S rDNA sequence as shown in SEQ ID NO:1, is named... Staphylococcus pseudoxylosus AT8, deposited on November 20, 2025 at the Guangdong Provincial Center for Microbial Culture Collection, accession number: GDMCC No: 67323. This application pertains to *Staphylococcus pseudocarpa*. Staphylococcus pseudoxylosus AT8 can achieve a degradation rate of over 90% for trimethoprim and tilmicosin, and over 78% for enrofloxacin. Furthermore, this application enriches the antibiotic-degrading bacterial strain library, promotes the control of new antibiotic pollutants in livestock and poultry manure and farmland soil, and facilitates the resource-based treatment and safe utilization of solid waste, demonstrating broad application prospects.

This invention discloses a method, system, and application for treating antibiotic-containing wastewater. The treatment method includes the following steps: inoculating sludge into a wastewater treatment reactor, then introducing wastewater for treatment; adding N-acylhomoserine lactone during the 149th-212th day of wastewater treatment; the N-acylhomoserine lactone includes C6-HSL and C12-HSL; the concentration of the N-acylhomoserine lactone in the system is 1-2.8 μM. This invention's method for treating antibiotic-containing wastewater, by adding N-acylhomoserine lactone during the wastewater treatment stage, effectively improves the antibiotic degradation rate, methane production, and QS-related gene abundance during the wastewater treatment stage, and can be effectively used to treat antibiotic-containing wastewater.

This invention proposes a CuO / Co3O4 heterojunction catalyst and its application in the degradation of bisphenol A (BPA), relating to the field of antibiotic degradation technology. Addressing the shortcomings of existing catalysts in terms of insufficient catalytic activity and stability in complex aquatic matrices with high salt and high organic matter content, this invention provides a CuO / Co3O4 heterojunction catalyst. This catalyst combines MOF-derived CuO as the catalyst core with Co3O4, providing a high specific surface area, abundant defects / functional groups, and good mass transfer characteristics. This enhances the catalytic performance for PMS activation while reducing the aggregation of metal oxides within the catalyst structure. Furthermore, MOF-derived carbon can serve as an electron transport channel and interface regulation scaffold, promoting the construction of a stable heterojunction interface and improving recyclability. Accordingly, the interfacial coupling of the copper-based MOF-derived CuO / carbon composite material with Co3O4 ensures high activity while achieving precise control of the PMS activation pathway through interfacial electronic structure regulation.

This invention belongs to the field of photocatalytic material preparation and antibiotic degradation technology, specifically relating to a ZIF-67(C) / g-C3N4 heterojunction photocatalyst, its preparation method, and its application in antibiotic degradation. This invention involves pre-calcining ZIF-67 to generate CN-framework-encapsulated zero-valent cobalt, which is then mixed with melamine and calcined to form the ZIF-67(C) / g-C3N4 heterojunction photocatalyst. This catalyst not only contains CN-framework-encapsulated zero-valent cobalt, Co3O4, and g-C3N4, but also forms a Co3O4 / g-C3N4 p-n heterojunction, exhibiting a synergistic activation effect on PMS, thus enhancing the catalyst's catalytic degradation effect on antibiotics. At a low dosage of 0.2 g / L, this catalyst can essentially completely degrade tylosin in water within 10 minutes.

The present application relates to sewage treatment technical field, especially for a kind of biochar-based constructed wetland and for nitrogen and phosphorus removal and antibiotic degradation method, including constructed wetland pool, wetland plant and water inlet pipeline and water outlet pipeline;Pool is filled with quartz sand, biochar and gravel three layers of substrate from top to bottom in turn;Wetland plant yellow flag iris is planted in quartz sand layer;Water inlet pipeline is connected with the upper water inlet end of pool body, and water outlet pipeline is connected with the lower water outlet end;When operating, wastewater containing sulfamethoxazole is pumped into pool body by peristaltic pump, and sequentially flows through each substrate layer, and hydraulic retention time is 3~7 days;The present application is designed by the three-layer substrate layer structure of "quartz sand-biochar-gravel", improves the removal rate of sulfamethoxazole and total nitrogen, reduces N2O and CH4 greenhouse gas emissions, and inhibits the generation of toxic degradation products.

The application provides a strain degrading antibiotics and a preparation method of immobilized particles of the strain, in particular, the application fixes high-efficiency antibiotic-degrading bacteria through an embedding process, and can improve the activity maintenance ability and the anti-environmental interference ability of the degrading bacteria. The application obtains a strain with excellent colonization ability and extremely high degrading activity through mutagenesis and screening, and the strain is particularly suitable for preparing a bacterial agent immobilized particle.

This invention belongs to the field of novel pollutant removal technology, disclosing a photocatalyst, its preparation method, and its application in antibiotic degradation. The invention first synthesizes a hydroxyl organic amine imine cage, and then prepares a flexible hydroxyl organic amine cationic cage with abundant N sites through a series of structural modifications. The N sites of the molecular cage are used to stabilize a photosensitive metal salt. By reducing the photosensitive metal salt, photosensitive metal nanoclusters are obtained and immobilized in the cavity or framework sites of the molecular cage to obtain a photocatalyst. Due to its small photosensitive metal nanoparticle size, fully exposed catalytic active sites, and good water solubility, this catalyst, utilizing the homogeneous catalyst principle, exhibits advantages such as high degradation efficiency, wide variety of antibiotics in wastewater, and good reusability, making it suitable for the purification treatment of biochemical wastewater in sewage treatment plants.

This invention relates to the field of environmental treatment materials, and more particularly to a graphite composite electrode for antibiotic degradation, its preparation method, and its applications. The preparation method includes: firstly, constructing a micro / nanoporous structure on the surface of a graphite sheet through electrochemical etching; subsequently, in-situ loading of nickel-iron oxide composite nanoparticles onto the porous graphite surface using a liquid-phase reduction method to obtain the graphite composite electrode. The composite electrode provided by this invention features a large specific surface area, abundant active sites, excellent conductivity, and structural stability, which can significantly improve the electrocatalytic degradation efficiency of antibiotics. Experimental results show that this composite electrode exhibits excellent degradation performance for levofloxacin, tetracycline, metronidazole, and sulfonamide antibiotics, and also demonstrates good cycle stability and broad applicability. The preparation process of this invention is simple and low-cost, and it has promising prospects for industrial application.