16 results about "Sulfamethoxazole" patented technology

This application discloses a cobalt-supported peanut shell biochar / peracetic acid synergistic system for water treatment and its application. The synergistic system includes cobalt-supported peanut shell biochar, peracetic acid, and water. The cobalt-supported peanut shell biochar comprises a peanut shell biochar matrix and cobalt-containing substances supported on the matrix. The cobalt-containing substances include metallic cobalt and / or cobalt oxides. The mass ratio of cobalt-supported peanut shell biochar to peracetic acid is (2-132):1. The atomic ratio of cobalt to carbon in the matrix is ​​(0.2-0.3):1. The cobalt-supported peanut shell biochar has a mesoporous structure with a total pore volume of not less than 0.07 cm³ / g and a specific surface area of ​​not less than 100 m². 2 / g. When this synergistic system is used to treat water containing organic pollutants, especially sulfamethoxazole, it can achieve a removal rate of over 90% within 3-5 minutes. The system maintains high activity and good stability over a wide pH range and in the presence of common anions, exhibiting excellent continuous operation performance. The degradation pathway of this synergistic system is environmentally friendly and can effectively reduce the toxicity of the products.

This invention discloses a method and application for preparing metal-doped composite catalysts based on ZIF-67, relating to the field of wastewater treatment technology. This invention constructs a multi-component synergistic system through the coordination of functional groups on the surface of biochar with ZIF-67 and the electronic coupling effect between rare earth metals and Co. Compared with traditional pure chemical support synthesis methods, this reduces costs and improves environmental compatibility. The metal-doped composite catalyst prepared by this invention is a novel heterogeneous catalyst. Through the electrostatic interaction between the biochar support and Co ions, and the metal-metal bonds formed between La / Ce and Co, it significantly enhances the stability of Co ions, effectively avoiding secondary pollution. The metal-doped composite catalyst prepared by this invention can efficiently activate persulfate to generate reactive oxygen species and synergistically remove multiple pollutants from complex water bodies containing sulfamethoxazole, tetracycline, levofloxacin, and other antibiotics such as methylene blue.

This invention belongs to the field of wastewater treatment technology, specifically relating to a method for preparing cobalt ferrite-modified coconut shell biochar and its application. The method includes: activating and pyrolyzing coconut shell powder with KOH to obtain alkaline coconut shell biochar; then loading cobalt ferrite nanoparticles onto the surface of the alkaline coconut shell biochar via a hydrothermal synthesis method; and finally drying to obtain cobalt ferrite-modified coconut shell biochar. This composite material can efficiently activate persulfate to degrade sulfamethoxazole in water and has advantages such as easy magnetic recovery and good cycle stability. The raw materials used in this invention are widely available and inexpensive, and the process is simple, making it significant for the removal of recalcitrant sulfonamide antibiotics.

The present application relates to sewage biological treatment technical field, specifically discloses a kind of process for treating antibiotic wastewater of composite microorganism-MBR membrane joint processing.The present application provides a kind of process for treating antibiotic wastewater of composite microorganism-MBR membrane joint processing, by COD gradient rise and removal rate control, directional acclimation and toxicity screening are carried out to activated sludge, and microbial community that is impacted by sulfamethoxazole is built;Further introduce the composite bacterial liquid of marine afipia felis and rhodopseudomonas coprophila composition, realize the synergistic degradation to high COD and sulfamethoxazole under suitable pH condition, so that COD removal rate still remains stable at higher level when concentration increases;End cooperate MBR membrane separation, high-efficiency biodegradation and high-efficiency solid-liquid separation are coupled to realize the efficient removal of sulfamethoxazole and COD in wastewater under low drug consumption, near neutral conditions.

The application discloses a cobalt-based Fenton-like catalyst and a preparation method and application thereof. The catalyst is prepared by the following steps: taking pyrrole as a monomer, dimethoxymethane as a crosslinking agent, methanesulfonic acid as a polymerization catalyst and a sulfonating agent, polymerizing by Friedel-Crafts alkylation to obtain a methanesulfonyl functionalized super-crosslinked polymer precursor, and then performing ultrasonic-assisted impregnation to load cobalt salt and high-temperature calcination. The active component of the catalyst is Co9S8 and elemental Co dual phases, which are highly dispersed in a porous carbon carrier in nanoscale, and no external sulfur source is needed. The phase controllable transformation is realized by adjusting the amount of the cobalt salt. The catalyst is used for Fenton-like reaction, and can quickly degrade a plurality of refractory organic pollutants such as sertraline, tetracycline, sulfamethoxazole and rhodamine B in the presence of PMS, and the removal rate reaches 100%. The catalyst has the advantages of simple preparation, high activity, good stability and wide application.

The present application belongs to the field of environmental microbiology technology, in particular, the present application relates to a sulfamethoxazole anaerobic degradation strain SA-9 and its application. The present application is collected from the anaerobic sludge near the farm, after enrichment and domestication, a strain capable of efficiently and rapidly anaerobic degradation of sulfamethoxazole (SMX) is obtained after separation and purification, through morphological and molecular biological identification, the strain belongs to Cupidesulfovibrio genus, named Cupidesulfovibrio sp.SA-9. The strain can rapidly degrade SMX under anaerobic conditions, and the degradation half-life is 7.6 d. The strain of the present application can be used as a biological degradation bacteria for the bioremediation of SMX contaminated environment, equipment and facilities.

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.

This utility model relates to the field of wastewater treatment technology and discloses a dual-cathode coupled electrocatalytic antibiotic wastewater treatment device. The device includes a first electrolytic cell, a second electrolytic cell, a wastewater container, a purification container, and a power supply. The first electrolytic cell is equipped with an MMO electrode and a CB-PTFE / GF cracked electrode electrically connected to the power supply. The second electrolytic cell is equipped with a BDD electrode and a FeOCl / GF composite electrode electrically connected to the power supply. The first electrolytic cell has a first inlet and a first outlet connected to the wastewater container. The second electrolytic cell has a second outlet and a second inlet connected to the purification container. The first outlet is connected to the second inlet. This device is simple, produces no secondary pollution, requires no auxiliary devices, and can efficiently degrade antibiotic wastewater, achieving a removal rate of up to 80% for oxytetracycline, levofloxacin, and sulfamethoxazole.

This invention discloses an iron-modified algal-based biochar-microalgae hybrid system, its preparation method, and its application, belonging to the field of water pollution control and treatment technology. The hybrid system comprises iron-modified algal-based biochar and microalgae culture. The preparation method of the iron-modified algal-based biochar includes the following steps: mixing and grinding microalgae powder and an iron source to obtain a precursor mixture, followed by pyrolysis and cooling to obtain the iron-modified algal-based biochar. This hybrid system can simultaneously and efficiently remove antibiotics (sulfamethoxazole) and heavy metals (Cr(VI)) from wastewater, with removal rates reaching 100% and 99.88%, respectively. It possesses multiple synergistic mechanisms including adsorption, reduction, biodegradation, and accumulation, making it suitable for the efficient and sustainable remediation of water bodies polluted by antibiotics and heavy metals.

This invention belongs to the field of fluorescence sensor technology, and discloses a fluorescent probe, a paper-based fluorescent sensor, its preparation method, and its application. γ-cyclodextrin and KOH are dissolved in a mixed solvent, and a methanol solution of polyethylene glycol is added. After sonication and standing at room temperature, γ-CD-MOF is obtained. Eu-MOF is loaded onto γ-CD-MOF to prepare γ-CD-MOF@Eu-MOF, i.e., the fluorescent probe. γ-CD-MOF@Eu-MOF exhibits high selectivity for sulfamethoxazoles (SAs), with detection limits as low as 25.5 nmol / L, 36.7 nmol / L, and 39.8 nmol / L for sulfamethoxypyrimidine, sulfadiazine, and sulfa-5-methoxypyrimidine, respectively. Based on the paper-based sensor of γ-CD-MOF@Eu-MOF, an SVM model for the fluorescence recognition and quantitative analysis of SAs was established using machine learning, realizing the visualization and portable detection of SAs.

The application discloses a detection kit for simultaneously determining the concentrations of 12 kinds of antibiotic drugs in trace serum and application, the 12 kinds of antibiotics including vancomycin, meropenem, imipenem, cilastatin, trimethoprim, linezolid, voriconazole, piperacillin, cefoperazone, sulfamethoxazole, cefepime and ceftazidime; the detection kit comprises pretreatment reagents and a liquid chromatography mobile phase; the pretreatment reagents comprise a protein precipitant and purified water; the protein precipitant comprises 50v / v% of methanol and 50v / v% of acetonitrile; the liquid chromatography mobile phase comprises phase A and phase B, the phase A comprises 0.02% of formic acid and 99.98% of water, and the phase B comprises 100% of acetonitrile. The method of the application only needs 10 muL of human serum sample, and can complete the detection within 4 min, can quantitatively determine 12 kinds of antibiotics with significant structural differences, and is simple, rapid, sensitive, accurate and specific.

This invention discloses a photoelectrocatalytic material of TiO2 nanotubes supported by a multi-metal oxide, its preparation method, and its application, belonging to the field of advanced oxidation treatment technology. The method includes pretreatment, substrate material preparation, precursor solution preparation, hydrothermal reaction, and post-treatment steps. The photoelectrocatalytic material of TiO2 nanotubes supported by a multi-metal oxide is prepared according to the method of this invention. The application is the degradation of sulfamethoxazole using the photoelectrocatalytic material of TiO2 nanotubes supported by a multi-metal oxide. The photoelectrocatalytic material prepared by this invention exhibits highly efficient degradation performance of sulfamethoxazole under visible light conditions. Furthermore, the preparation method is safe, simple, and efficient, showing potential for environmental remediation applications.

The present application discloses a sulfamethoxazole-nitrate nitrogen double-effect degradation strain, which is Burkholderia Stardust46, preserved in China General Microbiological Culture Collection Center on July 22, 2025, named as Burkholderia sp. Stardust46, and the preservation number is CGMCC No: 35337. The present application also discloses the application of the sulfamethoxazole-nitrate nitrogen double-effect degradation strain in degrading sulfamethoxazole and nitrate nitrogen in wastewater. The strain of the present application has strong tolerance to SMX and nitrate nitrogen, can grow efficiently under the stress conditions of SMX with a concentration of 40 mg / L and nitrate nitrogen with a concentration of 200 mg / L, and maintain high efficient aerobic denitrification, and has good tolerance to high-concentration antibiotic impact.