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101 results about "Sulfamethoxazole" patented technology

Sulfamethoxazole (SMZ or SMX) is an antibiotic. It is used for bacterial infections such as urinary tract infections, bronchitis, and prostatitis and is effective against both gram negative and positive bacteria such as Listeria monocytogenes and E. coli.

Antibiotic degrading bacterium with salt-tolerant characteristic and capable of degrading sulfamethoxazole at low temperature and application of antibiotic degrading bacterium

The invention relates to the technical field of microbial treatment of antibiotic pollution, and discloses an antibiotic degrading bacterium with salt tolerance and capable of degrading sulfamethoxazole at low temperature and application, the strain degrades SMX in a wide temperature range of 10-40 DEG C, the degradation rate of 20mg / L SMX at 10-35 DEG C within 64 hours is greater than 70%, and the degradation rate of 20mg / L SMX at 20-30 DEG C reaches 100%; at the low temperature of 10 DEG C, low-concentration SMX is obviously degraded, and the SMX with the concentration of 5 mg / L can be completely degraded within 16 hours; the MJ2 can still effectively degrade SMX under the harsh conditions that the temperature is low and SMX serves as the unique carbon and nitrogen source, the degradation rate reaches 100% after 66h at the concentration of 5 mg / L, and it is proved that the MJ2 has the unique oligotrophic adaptability. Salinity tests show that the degradation rate of MJ2 to 20 mg / L SMX within 48 hours under the 0.1-2% NaCl concentration is 100%, the degradation rate is still kept at 50% even under the stress of 3% high salt, and remarkable salt tolerance is also shown. In conclusion, the strain MJ2 integrates wide temperature range adaptability, low-temperature high efficiency, oligotrophic tolerance and high salt stability, and has great application value in sulfonamide antibiotic pollution remediation in a complex environment.
Owner:HUBEI UNIV OF TECH

Sea-land interaction zone groundwater pollution source tracing method based on multi-pollutant fingerprints

The invention discloses a sea-land interaction zone underground water pollution source tracing method based on multi-pollutant fingerprints, and the method comprises the steps: constructing a fingerprint feature library of eight key pollutants including cadmium, arsenic, nitrate nitrogen, ammonium nitrogen, phosphate, total petroleum hydrocarbon, sulfamethoxazole, pH value and the like; statistical characteristic models of four pollution sources of industrial emission, agricultural non-point sources, oil exploitation and aquaculture are established, Z-Score standardization and a similarity calculation method based on a standard normal distribution probability density function are adopted, comprehensive similarity evaluation is performed in combination with a risk weight distribution mechanism, a similarity threshold value of 0.7 is set to perform pollution source identification and sorting, and the pollution sources are identified and sorted according to the similarity threshold value. And correction is performed by considering environmental factors such as tide, season and geology of a sea-land interaction zone. The method can quickly and accurately recognize the groundwater pollution source of the sea-land interaction zone, the traceability accuracy rate reaches 80% or above, and scientific and technical support is provided for prevention and control of groundwater pollution of the sea-land interaction zone and formulation of an environmental protection policy.
Owner:NANKAI UNIV

Monatomic covalent organic framework material with adjustable iron loading capacity, preparation method of monatomic covalent organic framework material and sulfamethoxazole degradation method

The invention discloses a monatomic covalent organic framework material with adjustable iron loading capacity, a preparation method of the monatomic covalent organic framework material and a sulfamethoxazole degradation method. COFs containing bipyridine groups are used as a framework, an anchoring point is provided for iron loading, the iron loading capacity can be regulated and controlled by controlling the adding amount of an iron precursor, and a degradation path is successfully regulated and controlled to be close to 100% high-valence iron; and after calcination, the spinning state of iron is changed, and the PMS utilization rate and the electron transmission efficiency of iron sites are improved, so that the degradation efficiency of new pollutants is remarkably improved. The preparation process has the core advantages of simple equipment, simplicity and convenience in operation, low production cost and the like, and has outstanding environmental compatibility, social and economic values and industrial mass production feasibility while practicing a green synthesis concept.
Owner:GUANGDONG UNIV OF TECH

Process for combined treatment of antibiotic wastewater by using compound microorganism-MBR (Membrane Bioreactor) membrane

The invention relates to the technical field of biological sewage treatment, and particularly discloses a process for combined treatment of antibiotic wastewater by a compound microorganism-MBR (Membrane Bioreactor) membrane. The invention provides a process for combined treatment of antibiotic wastewater by a compound microorganism-MBR (Membrane Biological Reactor) membrane, which comprises the following steps of: performing directional domestication and toxicity screening on activated sludge through COD (Chemical Oxygen Demand) gradient increase and decrease and removal rate control, and constructing a microbial community resistant to sulfamethoxazole impact; further, a compound bacteria solution composed of marine Arfiv bacteria and Rhodopseudomonas faecalis is introduced, so that synergistic degradation of high COD and sulfamethoxazole is realized under a proper pH condition, and the COD removal rate is still kept at a relatively high level when the concentration is increased; and the tail end is matched with MBR membrane separation, and efficient biodegradation and efficient solid-liquid separation are coupled, so that the sulfamethoxazole and COD in the wastewater are efficiently removed under the conditions of low drug consumption and near neutrality.
Owner:NORTHERN ENG DESIGN & RES INST CO LTD

Preparation method of floating type cocatalyst and application of floating type cocatalyst in Fenton reaction

The invention discloses a preparation method of a floating type cocatalyst and application of the floating type cocatalyst in Fenton reaction. Nano tungsten sulfide prepared by a hydrothermal method and graphene oxide prepared by a Harmer method are used as raw materials, and the floating type cocatalyst is synthesized by a simple impregnation method. The prepared cocatalyst (MS-WS2-GO) can effectively promote the circulation rate of Fe < 3 + > / Fe < 2 + >, the cocatalysis Fenton-like system can achieve the removal effect of 90% or above on organic pollutants in water only under the condition that 0.5 mM H2O2 and 20 mg / L FeSO47H2O are added, and the system does not generate iron mud. The MS-WS2-GO / Fenton small-scale test system constructed by the invention is continuously operated for 31 days, and the degradation rate of sulfamethoxazole is still kept to be 100% or above. The preparation process of the floating type cocatalyst is mild in condition, simple and convenient to operate and easy to implement.
Owner:CHINA JILIANG UNIV

Preparation method and application of pyrite carbon nitride composite material

The invention discloses a preparation method and application of a pyrite carbon nitride composite material. Crushed and sieved natural pyrite and carbon nitride obtained through pyrolysis are fully mixed and subjected to ball milling treatment, and the pyrite and carbon nitride composite material is obtained. The characterization of the ball-milled pyrite carbon nitride composite material through XRD, XPS and the like proves that the natural pyrite and the carbon nitride material are successfully compounded. New bonds such as Fe-N and C-S-C bonds are generated in the ball milling process, electron distribution and an electron path of the catalyst are changed, interface electron transfer is enhanced, and the composite material can be uniformly distributed, the specific surface area is increased and more active sites can be exposed in the ball milling process, so that a very good catalytic degradation effect is achieved, sulfamethoxazole of 10 mg / L can be completely catalytically degraded within 5 min, and the service life of the sulfamethoxazole catalyst is prolonged. And the catalyst and persulfate are less in dosage, the preparation process of the catalyst is simple, and the catalyst has the characteristics of low cost and high efficiency.
Owner:XIANGTAN UNIV

Co-loaded peanut shell biochar / peroxyacetic acid water treatment synergistic system and application thereof

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.
Owner:WUHAN TEXTILE UNIV

Hydrophage strain SNF1, fermentation compound and method for removing sulfamethoxazole in wastewater

The invention discloses a hydrogen phagocystis strain SNF1, which belongs to the field of wastewater treatment, the hydrogen phagocystis strain SNF1 is preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.35006, and the preservation date is June 25, 2025; the invention further discloses a fermentation compound, the fermentation compound is used for removing sulfamethoxazole in wastewater, and the compound comprises the hydrogen phagocystis strain SNF1 and microalgae; the invention further discloses a method for removing sulfamethoxazole in wastewater, and the hydrophage strain SNF1 is used in the method.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI +1

Preparation method of irisflorentin

PendingCN121801985ABacteriaTransferasesS-Adenosyl-l-methionineBelamcanda chinensis
The invention relates to a method for preparing irisflorentin by utilizing belamcandin, and belongs to the technical field of biology. The method comprises the following steps: carrying out C-5 site and C-3'site methylation reaction by taking white belamcandin as a substrate, taking belamcanda methyl transferase gene BcOMT03 gene encoding protein and belamcanda methyl transferase BcOMT33 gene encoding protein as catalysts and taking S-adenosine-methionine as a methyl donor to generate a corresponding glycosylation product. According to the invention, the functions of the two methyltransferase genes BcOMT03 and BcOMT33 in the blackberry lily are identified and verified for the first time, the effect of the two methyltransferase genes BcOMT03 and BcOMT33 in catalyzing the ibullamcandin to produce the irisflorentin is defined, and the blank of research on the biosynthetic pathway of the characteristic component irisflorentin of the blackberry lily is filled up; important information is provided for research on a biosynthesis mechanism of active ingredients of medicinal plants.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

A method for the degradation of sulfamethoxazole and a method for the purification of wastewater.

This invention discloses a method for degrading sulfamethoxazole and a method for purifying wastewater. The method for degrading sulfamethoxazole involves adding low-valence vanadium oxide and sodium percarbonate to the sulfamethoxazole. The low-valence state refers to vanadium with a valence of +3 or +4. The initial pH of the reaction system is 3–9. The vanadium oxide needs to be acid-washed before use. Vanadium oxide exhibits good catalytic activity towards sodium percarbonate, significantly improving the degradation rate of sulfamethoxazole in a short time. This provides a new solution for the degradation of sulfamethoxazole, fills the gap in the decontamination performance of vanadium-based heterogeneous sodium percarbonate systems, deepens the understanding of reducing agent applications, and can be used for wastewater purification.
Owner:SICHUAN UNIV

Method for removing antibiotics from seawater aquaculture wastewater based on oyster shell composite filler

PendingCN122647014ATrimethoprimSulfanilamide
The present application belongs to the technical field of wastewater treatment, and particularly relates to a seawater breeding wastewater antibiotic removal method based on oyster shell composite filler. Fine gravel, oyster shell and functional mineral are compounded in a fixed volume ratio of 2:1:1, and are laid in a structure with a limited particle size range and homogeneity without stratification. A salinity-directed salt-tolerant domestication process and a tidal intermittent operation mode of 48h hydraulic retention + 24h emptying and reoxygenation are matched, and salt-tolerant functional bacterial flora of Proteobacteria, Paracoccus and Shigella are enriched. The present application can adapt to a wide range of salinity conditions of 10‰-30‰, relieve high salt inhibition and ion competition, simultaneously and efficiently remove three typical antibiotics of conventional pollutants, sulfamethoxazole, trimethoprim and enrofloxacin, and reduce resistance genes. The sulfamethoxazole removal rate can reach 93.94% under the condition of 30‰ high salinity, the system runs stably and has strong adaptability, and has certain engineering application value and large-scale popularization potential in the field of seawater breeding wastewater treatment.
Owner:QINGDAO UNIV

A method for treating wastewater by activating peracetic acid with molybdenum carbide

This invention provides a method for treating wastewater using molybdenum carbide-activated peracetic acid, relating to the field of advanced oxidation water treatment. The method includes the following steps: mixing organic wastewater and peracetic acid in a reactor, adjusting the pH, and then adding molybdenum carbide to initiate the oxidation reaction, rapidly degrading pollutants in the water. The pH of the organic wastewater is preferably weakly alkaline. In this invention, organic pollutants can be oxidized and degraded by active species generated by molybdenum carbide-activated peracetic acid, such as organic free radicals and hydroxyl free radicals. The degradation efficiency of sulfamethoxazole in the organic wastewater is highest at an initial pH of 9, achieving a removal rate of over 95% for different concentrations of sulfamethoxazole within two minutes. It also has a certain removal effect on other organic pollutants such as methylene blue. Molybdenum carbide is a solid powder, making it easily removed from water. This invention requires no additional energy intake, and peracetic acid also disinfects and sterilizes the water.
Owner:YANSHAN UNIV

Method for preparing metal-doped composite catalyst based on zif-67 and applications thereof

PendingCN122352270APtru catalystSulfanilamide
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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Iron-manganese complex graphene carbon catalyst supported on zeolite, preparation and application thereof

The application discloses an iron-manganese complex graphene carbon catalyst supported on a zeolite, and a preparation and application thereof, and belongs to the technical field of water treatment. The catalyst is a GC@Mn-Fe3O4 / Zeolite catalyst, which is made of nitrogen-doped graphene carbon, Fe3O4, Mn3O4 and a zeolite, and a preparation method thereof is provided. The GC@Mn-Fe3O4 / Zeolite catalyst prepared in the application can drive the metabolism of microorganisms in water to antibiotics, and effectively removes three mixed antibiotics, i.e., ciprofloxacin, sulfamethoxazole and tetracycline, in water under the condition that no external energy is input, and the removal rate can reach more than 95%. In addition, the iron-manganese complex graphene carbon catalyst is supported on the zeolite, so that the stability of the catalyst is improved, and the catalyst has a good application prospect.
Owner:GUANGZHOU UNIVERSITY

Antibiotic-resistant marine heterotrophic ammonia-assimilating-aerobic denitrifying bacteria and application thereof

A strain of antibiotic-resistant marine heterotrophic ammonia assimilation-aerobic denitrifying bacteria and its application, belongs to the field of water treatment of aquaculture. The seawater antibiotic-resistant high-efficiency nitrogen removal Marinobacter nitratireducens LAN01 can use polyhydroxyalkanoate as the sole carbon source, and can realize heterotrophic ammonia assimilation and aerobic denitrification function under the stress of different concentrations of sulfamethoxazole antibiotics, and simultaneously transform phosphate. The strain has multiple resistances such as high salinity, high alkalinity and antibiotic, and can be used for seawater aquaculture effluent treatment, seawater recirculating aquaculture water treatment, high-salinity wastewater treatment and saline-alkali soil bioremediation, etc. To realize the simultaneous recovery of nitrogen, phosphorus and other nutrients in the seawater aquaculture environment.
Owner:BEIJING UNIV OF TECH

Method for synergistically degrading organic pollutants by low consumption of persulfate through electro-enhanced activation of anode and cathode

The application discloses an electro-enhanced activation persulfate oxidation method for removing organic pollutants with low consumption through cooperation of anode and cathode, uses LaCoO3 modified Ti4O7 active electrochemical film rich in oxygen vacancy as an anode, and uses in-situ grown nano-carbon modified carbon felt as a cathode to construct an anode-cathode cooperative activation persulfate system, achieves 100% removal of sulfamethoxazole within 37.3 seconds, and the energy consumption is only 0.0015 kWh / m 3 ·order. The technology meets the demand of high flux (1061 L / m 2 ·h) for complete degradation of pollutants, and can also realize deep mineralization (89%) of pollutants at slightly lower flux (212.22 L / m 2 ·h). Compared with the prior art, the bipolar activation persulfate system of the application has the characteristics of significantly improving the space-time efficiency by using bipolar multi-active sites, solving the problems of low wastewater treatment capacity, poor mineralization and high energy consumption of the single-pole system, and efficiently treating actual marine aquaculture wastewater and domestic sewage. The application has excellent pollutant removal and mineralization efficiency, wide pH application range, good stability, long service life, and wide application prospect.
Owner:NANKAI UNIV

Carbon-based catalyst as well as preparation method and application thereof

The invention provides a preparation method of a carbon-based catalyst, which comprises the step of pyrolyzing nylon and sodium chloride under an inert gas condition to obtain the carbon-based catalyst. According to the method, the chlorine-doped metal-free carbon-based catalyst is obtained by adding sodium chloride and then carrying out high-temperature pyrolysis in an argon atmosphere for conversion. The catalyst has excellent Fenton-like performance, and the rate constant of activating peroxymonosulfate to degrade phenol is improved by two orders of magnitude compared with a catalyst without sodium chloride conversion. In addition, the catalyst can be used for degrading various pollutants, such as rhodamine B, tetracycline and sulfamethoxazole. The catalyst / peroxymonosulfate system has strong anti-interference ability in different water quality environments, and shows certain resistance and wide pH adaptability to common cations and anions existing in wastewater. The catalyst synthesized by the invention has the advantages of low cost of required raw materials and simple preparation method, has practical application potential, and provides a new thought for realizing waste plastic recycling and high-value conversion.
Owner:UNIV OF SCI & TECH OF CHINA

Method for enhancing removal of high-concentration antibiotics by coupling three-dimensional electrode with sulfur-mediated biological system

The invention discloses a method for enhancing removal of high-concentration antibiotics by a three-dimensional electrode coupled sulfur-mediated biological system. The three-dimensional electrode structure is composed of a two-dimensional electrode and pig manure biochar, when the three-dimensional electrode structure is combined with a sulfur-mediated sewage biological treatment system for use, enrichment of functional microorganisms can be promoted, electron transfer and synergistic metabolism among the functional microorganisms can be improved, efficient synergistic removal of COD-sulfate-ammonia nitrogen-sulfamethoxazole can be promoted, and the effect of removing the COD-sulfate-ammonia nitrogen-sulfamethoxazole can be achieved. And a new technology is provided for treatment of wastewater containing carbon, nitrogen, sulfur and antibiotics. Especially in deep treatment of high-concentration antibiotics and pharmaceutical wastewater, the coupling technology can realize efficient removal of pollutants and long-term stable operation of the system, and a technical path with innovativeness and application potential is provided for treatment of complex refractory wastewater.
Owner:SUN YAT SEN UNIV

Cobalt tungstate catalyst with defects, and preparation method and application thereof

The application discloses a kind of cobalt tungstate catalysts with defects and its preparation method and application, belong to water pollution control technical field.It is specific that: the application is synthesized by hydrothermal method using cobalt source and tungsten source to synthesize cobalt tungstate, mixed with sodium borohydride or directly place cobalt tungstate in (H2 / Ar=10% / 90%) protective atmosphere, by controlling different holding time to prepare a series of cobalt tungstate materials with defects.The cobalt tungstate with defects prepared by the application can activate peroxymonosulfate (PMS) to degrade sulfamethoxazole (SMTZ), the material can efficiently remove SMTZ within 5min under the condition of pH=7, and the removal rate can reach 100%.In addition, the synthesis process of the application is green and environmentally friendly, and the prepared catalyst provides reference for the design of subsequent advanced oxidation technology catalysts applied in wastewater treatment field.
Owner:NORTH CHINA ELECTRIC POWER UNIV

Iron electrolysis coupled phycomycete microbial fuel cell, preparation method and application thereof, and wastewater treatment method

The invention provides an iron electrolysis coupled phycomycete microbial fuel cell, a preparation method and application thereof, and a wastewater treatment method, and belongs to the technical field of wastewater treatment. The IE-MFC comprises an anode chamber, a cathode chamber and an iron electrolysis chamber which are sequentially arranged, the anode chamber and the cathode chamber are separated by a proton exchange membrane, the cathode chamber and the iron electrolysis chamber are separated by a cation exchange membrane, and an anaerobic microbial membrane is fixed on the surface of an anode; and the surface of the cathode is fixed with coleus. An iron electrolysis and phycomycete symbiotic system is introduced, the metabolic activity of microorganisms can be stimulated and strengthened through a micro electric field generated inside, the biological metabolism of phycomycetes and the synergistic effect of the electric field of the phycomycetes decompose sulfamethoxazole, and meanwhile ferrous ions are generated in situ through iron electrolysis; and oxygen generated by photosynthesis of the coleus in the cathode region is triggered to generate hydroxyl free radicals with strong oxidizing property, so that mineralization of refractory intermediate products is realized, and a'biodegradation-micro electric field-iron electrolysis' three-synergistic degradation mechanism is formed.
Owner:CHANGSHA ENVIRONMENTAL PROTECTION COLLEGE

Preparation method and application of carbon-based nano zero-valent iron material capable of being used for microwave activation degradation of organic pollutants

The invention discloses a preparation method and application of a carbon-based nanoscale zero-valent iron material capable of being used for microwave activation and degradation of organic pollutants, and relates to the technical field of carbon-based nanoscale zero-valent iron preparation. The invention aims to solve the problems that a traditional carbon-based metal organic framework is unstable, and incompletely decomposed toxic by-products are released into water in an adsorption process, so that secondary organic pollution is caused. The method comprises the following steps: adding nitrogen-doped biochar into a ferric chloride solution, uniformly stirring in a nitrogen atmosphere, adding a sodium borohydride aqueous solution, fully stirring, filtering, washing in the nitrogen atmosphere, and finally drying by a freeze dryer to obtain the carbon-based nano zero-valent iron material for degrading organic pollutants under microwave activation. The organic pollutants comprise but are not limited to sulfamethoxazole, bisphenol A, 4-chlorophenol and trichlorophenol. The invention can obtain the preparation method and the application of the carbon-based nano zero-valent iron material capable of being used for microwave activation and degradation of organic pollutants.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Fe-N-C monatomic catalyst with adjustable pyrrole nitrogen proportion and preparation method and application thereof

The invention discloses a Fe-N-C monatomic catalyst with an adjustable pyrrole nitrogen ratio as well as a preparation method and application of the Fe-N-C monatomic catalyst. According to the catalyst, ZIF-8 serves as a precursor, and accurate regulation and control of the proportion of pyrrole nitrogen in the Fe-N-C catalyst are achieved by regulating and controlling the proportion of 1, 10-phenanthroline and 2-methylimidazole in the precursor. By introducing a proper amount of pyrrole nitrogen, the electron density of a Fe active center can be enhanced through a strong electron donating effect of the pyrrole nitrogen, and a strong polarization electric field is induced to be formed, so that the adsorption and activation capability on peroxymonosulfate is remarkably improved, a non-free radical path dominated by singlet oxygen is promoted, and the removal rate of emerging pollutants such as sulfamethoxazole in 30 min exceeds 97%. According to the invention, collaborative optimization of catalytic activity and structural stability is realized, and the catalyst shows excellent catalytic performance and cycling stability in a wide pH range and in an actual water body, and has important actual application value.
Owner:SOUTH CHINA UNIV OF TECH

Preparation method and application of cobalt ferrite alkali modified coconut shell biochar

PendingCN122321864ACobalt ferrite nanoparticlesSulfanilamide
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.
Owner:ZHENGZHOU UNIV

Primer pairs, primer probe compositions, PCR master mixes, kits, and methods for detecting multiple respiratory pathogens

This application relates to the field of biotechnology, and particularly to primer pairs, primer-probe compositions, PCR premixes, kits, and methods for detecting multiple respiratory pathogens. Nucleic acid sequences are shown in primer pairs as indicated by SEQ ID NO: 1-2, 4-5, 7-8, 10-11, 13-14, 16-17, 19-20, 22-23, 25-26, 28-29, 31-32, 34-35, 37-38, and 40-41. For target respiratory pathogens, this application designs specific amplification primer pairs, paired with suitable probes, enabling the simultaneous detection of eight targets. Furthermore, the detection process avoids interference from heme, trimethoprim, sulfamethoxazole, amphotericin B, itraconazole, fluconazole, azithromycin, adrenaline, and lidocaine hydrochloride in the test sample. It exhibits good anti-interference properties and shows no cross-reactivity with *Rhodococcus equi*, *Candida tropicalis*, and *Candida krusei*.
Owner:SANSURE BIOTECH INC

A biochar loaded molybdenite adsorbent, a preparation method and application thereof

The present application relates to the technical field of adsorbent, in particular to a kind of biochar load molybdenite adsorbent, preparation method and application thereof, its preparation method includes the following steps: S1.the preparation of biochar;S2.molybdenite pretreatment;S3.the preparation of biochar load molybdenite;S4.the preparation of adsorbent.The key problem of active component easy to fall off in physical simple mixing is solved by the synergistic effect of modified cleaning solution and modified impregnation solution, the stability of adsorbent is improved, and an internal Mo-Ni synergistic catalytic system is constructed with molybdenite.The synergistic effect of modified cleaning solution, modified impregnation solution and adsorption modifier greatly improves the activation efficiency and pollutant degradation capacity, and enhances the electrostatic adsorption capacity for typical anionic pollutants (such as sulfamethoxazole) in water.
Owner:长春科技学院

Preparation method of modified nano composite material and application of modified nano composite material in degradation of new pollutants

The invention discloses a preparation method of a modified nano composite material and application of the modified nano composite material in degradation of new pollutants, and belongs to the field of new pollutant treatment. According to the preparation method disclosed by the invention, LaFeO3 is doped into MIL-88A to synthesize heterojunction MIL-88A-LaFeO3, and citric acid is added, so that the photocatalytic performance of the material is improved. The photo-Fenton degradation efficiency of the MIL-88A-coated LaFeO3 prepared by the preparation method disclosed by the invention on acetamiprid reaches 99.9% within 180 minutes, and the photo-Fenton degradation efficiency of the MIL-88A-coated LaFeO3 prepared by the preparation method disclosed by the invention on sulfamethoxazole reaches 100% within 180 minutes. The photo-Fenton degradation efficiency of the composite material modified by citric acid on acetamiprid reaches 100% within 75 min, and the composite material shows more excellent photocatalytic activity. The preparation method disclosed by the invention is simple in material and low in cost, and the prepared material is high in degradation rate, has broad spectrum and is applied to degradation of various types of neonicotinoid pesticides and antibiotics in a water body.
Owner:JIANGNAN UNIV

Preparation method and application of dual-ligand Fe-MOF thin film material loaded on carbon cloth

The invention provides a preparation method and application of a dual-ligand Fe-MOF thin film material loaded on carbon cloth. The preparation method comprises the following steps: S1, carrying out ultrasonic cleaning on a carbon cloth substrate by using diluted hydrochloric acid, acetone and deionized water in sequence, carrying out vacuum drying on the cleaned carbon cloth, then carrying out plasma treatment on the dried carbon cloth, and carrying out sealed storage after treatment; s2, the carbon cloth substrate subjected to plasma treatment is put into a DMF solution containing terephthalic acid, 2-aminoterephthalic acid and ferric iron salt, a reaction is conducted at a certain temperature for a certain time, and the double-ligand Fe-MOF thin film material generated on the carbon cloth substrate is obtained. And taking out the carbon cloth loaded with the thin film material, washing with purified water and ethanol, and drying overnight. The preparation method is simple, stable and efficient, and the film material has a large specific surface area and fast reaction kinetics and can be used as a modified electrode to realize efficient detection of sulfamethoxazole antibiotics.
Owner:HAINAN UNIV

Method for treating sulfamethoxazole wastewater by using anaerobic membrane bioreactor

The invention discloses a method for treating sulfamethoxazole wastewater by using an anaerobic membrane bioreactor. The method comprises the following steps: utilizing an anaerobic membrane bioreactor, externally connecting an air pump to maintain sufficient mixing of sludge and water, internally arranging a flat membrane component, inoculating anaerobic sludge into the reactor, pumping SMX wastewater from the bottom of the reactor, and upwards flowing through the reactor under an anaerobic condition, organic matters in the wastewater are jointly degraded through anaerobic metabolism of microorganisms and adsorption of a biological membrane, and a carbon-sulfur conversion reaction is carried out, so that COD (Chemical Oxygen Demand), sulfate and SMX in the wastewater are efficiently removed. The method is simple and convenient to operate, controllable in process and suitable for treatment of SMX wastewater with different concentrations, and a feasible technical scheme is provided for industrial treatment of antibiotic wastewater.
Owner:NANJING UNIV OF SCI & TECH

Microbial regeneration method of biochar for adsorbing sulfamethoxazole

The invention discloses a microbial regeneration method of biochar for adsorbing sulfamethoxazole, which comprises the following steps: 1) mixing a bacillus cereus KB-2 bacterial solution and the biochar for adsorbing sulfamethoxazole in a culture medium solution containing a carbon source, and degrading to remove sulfamethoxazole adsorbed on the biochar; and (2) separating the biochar from which the sulfamethoxazole is degraded and removed from a bacillus cereus bacterial liquid to realize the regeneration of the biochar, and the preservation number of bacillus cereus KB-2 is CCTCC (China Center For Type Culture Collection) 20251830. According to the invention, the sulfamethoxazole adsorbed on the biochar is removed by adopting a microbial degradation method, so that the high adsorption performance of the biochar on the sulfamethoxazole can be kept for a long time, and meanwhile, the sulfamethoxazole pollutants can be thoroughly eliminated. According to the regeneration method, the biochar can be recycled for a long time and can be efficiently used for repairing organic pollution of soil or water, the consumption of a biochar material is expected to be reduced, the material use cost and the environment repairing cost are reduced, and meanwhile secondary pollution is reduced.
Owner:ZHEJIANG UNIV