111 results about "Antibiotic degradation" patented technology

The invention discloses a method for preparing a liquid fertilizer and improving crop yield by using tylosin waste liquid, and belongs to the technical field of agricultural waste resource utilization, and the method comprises the following steps: S1, preparing a novel liquid fertilizer: mixing the tylosin waste liquid with an antibiotic degradation agent for reaction, centrifuging, and collecting supernatant; adding nutrient substances and a mixed bacterial agent into the centrifugate for fermentation treatment, and filtering to obtain filtrate, namely the novel liquid fertilizer; s2, taking crop seeds, and soaking the crop seeds in a soaking solution before planting; s3, in the seed bud stage and the seedling stage, leaf surface spraying is conducted; wherein the antibiotic degradation agent is prepared by reacting modified silicon dioxide with sulfhydrylated sodium carboxymethyl cellulose. According to the method, resource utilization of the tylosin waste liquid is achieved, environmental pollution and use of chemical fertilizers are reduced, the agricultural production cost is reduced, and an effective way is provided for agricultural sustainable development.

The invention discloses a Cu2WS4-CuBi2O4 composite material with a photothermal effect and a preparation method and application thereof.The Cu2WS4-CuBi2O4 composite material is supported by CuBi2O4 of a rod-shaped structure, flaky Cu2WS4 is loaded on the surface of the rod-shaped CuBi2O4 through the interface regulation and control effect of a surfactant by adopting a hydrothermal method, and a Z-type heterojunction with the photothermal effect is formed; in an antibiotic degradation system, the Cu2WS4-CuBi2O4 composite material shows good photocatalytic performance and degradation effect under the synergistic effect of a photothermal effect and a PDS advanced oxidation process. The device is simple to prepare, stable in structure, high in repeatability and free of secondary pollution, and can meet laboratory and industrial requirements.

The invention belongs to the technical field of antibiotic degradation, and particularly relates to a preparation method and application of a surface hydroxylation monatomic catalyst with a Co-O-Zn structure. Zinc acetate and cobalt acetate are used as metal sources, dimethylimidazole is used as a ligand, mixing reaction is carried out in a solvent, centrifugal washing, drying and calcining are carried out, the surface hydroxylation monatomic catalyst with a Co-O-Zn structure is prepared, the surface hydroxylation monatomic catalyst has an asymmetric Co-O-Zn configuration, a large number of hydroxyl groups exist on the surface, and the surface hydroxylation monatomic catalyst has the advantages that the surface hydroxylation monatomic catalyst has a good application prospect. The asymmetric coordination structure of Co-O-Zn can optimize the adsorption behavior of an oxidizing agent, effectively adjust the interaction of metal sites and the electronic structure in the catalysis process, significantly enhance the catalytic reaction, and have strong ability to resist the interference of external inorganic ions and organic matters.

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.

The invention belongs to the technical field of microorganisms, and particularly discloses a fluoroquinolone antibiotic efficient degrading bacterium and application thereof. The fluoroquinolone antibiotic degrading bacterium is Kocuria sp. X03, the preservation number of the Kocuria sp. X03 is CCTCC NO: M 2025522, the invention provides the fluoroquinolone antibiotic degrading bacterium Kocuria sp. X03 separated from soil, the Kocuria sp. X03 can efficiently degrade fluoroquinolone antibiotics, an antibiotic degrading strain library is enriched, biotransformation mechanism research and bioremediation application are promoted, and the application prospect is wide. The strain can be used for degrading and eliminating livestock and poultry manure and residual antibiotics in farmland soil, and has certain research and application values.

The invention discloses a single-chamber electro-Fenton antibiotic mineralization device and method based on double anodes, in the device, an air cathode, a first anode and a second anode are sequentially arranged in a single chamber, an electrolyte contains antibiotics, the first anode comprises an electrogenesis biological membrane and in-situ synthesized nano FeS, and the second anode comprises an electrogenesis biological membrane and in-situ synthesized nano FeS; the second anode comprises a degradation biological membrane of a typical antibiotic degradation intermediate, and the surface of the air cathode is coated with an aerobic reduction catalyst. The first anode is used for driving Fe (III) / Fe (II) circulation, generation of OH is accelerated, meanwhile, nano FeS is used for protecting cells from being damaged, and therefore the antibiotic degradation efficiency is improved, and generation of intermediates is promoted; the second anode is used for promoting anode biodegradation to be coupled with cathode chemical oxidation, the intermediate is rapidly mineralized, electrons are released to drive the cathode electro-Fenton reaction, and finally thorough mineralization of the antibiotics is achieved. The device and the method provided by the invention can realize high-efficiency green low-carbon treatment of antibiotic wastewater, and have important application prospects in the aspects of environmental protection and resource utilization.

The invention discloses a sewage treatment method based on reinforcement of composite magnetic nanoparticles, and belongs to the technical field of sewage treatment, and the sewage treatment method comprises the following steps: 1, pretreatment: intercepting large-particle-size floating objects in wastewater by using a grid, and stirring by using an adjusting tank to uniformly mix water; in the second step, composite magnetic nanoparticles are added into the pretreated wastewater, and nitrogen and phosphorus adsorption and electric energy collection and storage are achieved at the same time; 3, separation: separating the composite particles through a magnetic separation device, and further purifying the wastewater through a sedimentation tank; 4, regeneration: forming an electric field by utilizing the collected electric energy, desorbing particles by combining with a neutral solution of an antibiotic degradation product, and recycling after cleaning; 5, standard reaching and energy consumption balance are carried out, the wastewater is disinfected, the water quality is monitored, the stirring speed and the power supply proportion are adjusted in a linkage mode, and standard emission and energy consumption self-balance are ensured. The method does not need to depend on microorganisms, particles and energy recycling, the treatment efficiency is high, and the operation cost is low.

The invention belongs to the technical field of agricultural biology, and particularly relates to zearalenone hydrolase ZHRnZ as well as a coding gene, a preparation method and application thereof. The amino acid sequence of the zearalenone hydrolase ZHRnZ provided by the invention is as shown in SEQ ID NO.1, and the nucleotide sequence of the coding gene of the zearalenone hydrolase ZHRnZ is as shown in SEQ ID NO.2. The hydrolase provided by the invention has relatively strong degradation capability on zearalenone, derivatives of zearalenone and macrolide antibiotics, and is high in degradation speed. The method has a huge application prospect in the fields of degradation of feed, food, biomass energy, Chinese herbal medicine mycotoxin and antibiotics.

The invention discloses a method for promoting degradation of penicillin antibiotics in a water body. The method comprises the following steps: S1, detecting water quality; s2, medium adjustment; s3, carrying out catalytic degradation; s4, precipitation reaction; medium adjustment is performed on the water body to be treated by using calcium ions and organic matters, so that an example state in the water body to be treated is good, the calcium ions can be coordinated with carbonyl and carboxyl in penicillin molecules, a hydrolyzed reaction intermediate is stabilized, the hydrolysis rate of penicillin antibiotics is increased, and the yield of penicillin antibiotics is increased. The characteristic functional groups such as amino and sulfydryl in the biological metabolism organic matter can also serve as strong nucleophilic reagents to promote rapid hydrolysis of penicillin antibiotics, and meanwhile, through specific setting of the method, it can be avoided that calcium ions and biological organic metabolism media cause secondary pollution to the to-be-treated water body before degradation.

The application discloses a functional carrier filler, a preparation method and application thereof. The functional carrier filler comprises a polyethylene carrier and a functional layer loaded on the surface of the polyethylene carrier; and the functional layer comprises amino graphene. The application fixes the amino graphene on the surface of the polyethylene carrier, so that the surface of the filler is rich in nitrogen functional groups capable of mediating electron transfer, the electron transfer of microorganisms is promoted, the biodegradation of antibiotics is strengthened, the specific surface area of the carrier is improved, and the biofilm is hung, the functional carrier filler is used as a suspended filler of a moving bed biofilm reactor, and is used in a post-denitrification MBBR process after sewage treatment, so that the denitrification rate is improved, the degradation of antibiotics is promoted, the use of carbon sources is reduced, and energy saving and emission reduction are facilitated.

The invention provides a preparation method and application of a photocatalytic microorganism-nano material heterozygote. The heterozygote is formed by compounding electroactive bacteria Shewanella oneidensis MR-1 and a nano material CNx with a photoelectric effect, degradation of antibiotics such as tetracycline and the like is accelerated by utilizing photo-induced electrons and holes generated by excitation of the CNx under a natural illumination condition, inhibition of the antibiotics on microbial activity is relieved, the microbial metabolism efficiency is improved, and the degradation rate of antibiotics such as tetracycline and the like is increased. Therefore, nitrogen and phosphorus elements in the wastewater are rapidly induced to form magnesium ammonium phosphate crystals, and synchronous antibiotic degradation and nitrogen and phosphorus resource recovery are realized. The method is easy and convenient to operate, environmentally friendly and high in phosphorus recovery efficiency, the obtained magnesium ammonium phosphate crystals are controllable in grain size and excellent in quality, and the method is suitable for resourceful treatment scenes of antibiotic-containing organic pollutants such as breeding wastewater and has good application and popularization prospects.

The invention discloses a method for strengthening three-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in rice field soil through sulfurized zero-valent iron, and belongs to the technical field of rice field soil pollution remediation. The sulfurized zero-valent iron (S-ZVI) is prepared according to the sulfur-iron ratio of 0.1-0.2; the S-ZVI is mixed with the contaminated soil, and rice is cultivated in cooperation with a specific fertilization and irrigation scheme. According to the method for strengthening the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in the rice field soil through the sulfurized zero-valent iron, by optimizing preparation and application of the sulfurized zero-valent iron, under the synergistic effect of chemical reduction and microbial degradation, the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is expected to be achieved, and the effect of strengthening the rice field soil chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is achieved. And an important means is provided for degradation of antibiotics in rice field soil.

The invention discloses an efficient detoxification and nutrient recovery method for aerobic composting of fungus-enhanced erythromycin fermentation fungus residues, and belongs to the field of solid waste disposal and resource reutilization. The method comprises the following steps: mixing erythromycin fermentation mushroom dregs subjected to high-temperature sterilization treatment with corn straw powder, inoculating trichoderma asperellum, and carrying out aerobic composting fermentation. According to the method, aerobic co-compost of erythromycin fermentation mushroom dregs and crop straws is strengthened by inoculating an antibiotic degrading microbial agent taking trichoderma asperellum as a core, and an organic fertilizer which is high in nutrient content and is non-toxic and harmless is produced, so that an efficient, economical and environment-friendly solution is provided for solving the problem of resource utilization of the erythromycin fermentation mushroom dregs.

The application relates to the technical field of nanomaterials, in particular to a CoMo-BTNT anode, a preparation method and application thereof, wherein the preparation method comprises the following steps: preparing a Ti substrate; preparing a titanium dioxide nanotube array by using the Ti substrate; depositing a Co-Mo oxide layer deposition solution onto the surface of the TNA through a direct current deposition method, and then performing annealing heat treatment to prepare a CoMo-TNA; and preparing the CoMo-BTNT anode by taking the CoMo-TNA as a cathode and a Pt sheet as an anode; the application further provides application of the above CoMo-BTNT anode in antibiotic degradation in water; the application takes the TNA as a base layer, and deposits an active CoMo oxide layer thereon; the CoMo-BTNT anode has good conductivity and electrocatalytic performance, the conductivity of the anode is improved, an effective electrically assisted activated PMS tetracycline degradation system is constructed, and a new solution idea is provided for tetracycline wastewater treatment.

The invention discloses a high-activity nitrogen-doped catalyst for efficiently degrading chemical organic wastewater, which is characterized in that a precursor containing nitrogen or rich functional groups is self-polymerized with metal to anchor a large number of metal ions, and a stable coordination environment is provided for the metal ions through rapid self-polymerization, so that the chemical organic wastewater can be efficiently degraded. Therefore, metal aggregation is inhibited, and metal leaching in the using process is prevented. The catalyst provided by the invention can be used for degrading organic wastewater, has the advantages of small catalyst dosage, good catalyst performance and good degradation effect, can completely degrade dye to the highest degree of 100%, can degrade antibiotics to the highest degree of 99%, and is a catalyst with wide application prospects in the field of chemical organic wastewater treatment.

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 present invention provides a titanium-based perovskite material with different microstructures, a preparation method thereof, and an application in photocatalytic degradation of antibiotic pollutants. The microstructure of the titanium-based perovskite material is effectively regulated by adjusting the type of mineralizing agent in the hydrothermal reaction, and nanoparticles, nanosheets, and nanoflower structures with hierarchical structures are obtained. The titanium-based perovskite material with different microstructures of the present invention can quickly achieve enhanced separation of carriers due to its good microstructure and enhanced surface and interface reactions; at the same time, due to the effective regulation of the microscopic surface, it has more active reaction sites and thus exhibits good physicochemical activity, which not only enhances the surface and interface reactions, but also promotes effective adsorption of the surface of antibiotic pollutants. The titanium-based perovskite material with different microstructures of the present invention is used as a catalyst to exhibit high-end photocatalytic activity under visible light irradiation, and shows potential application effects on the removal of highly toxic and low-concentration antibiotic pollutants.

The invention discloses a PDDA modified LaFeO3 / g-C3N5 magnetic composite photocatalyst, a preparation method thereof and application of the PDDA modified LaFeO3 / g-C3N5 magnetic composite photocatalyst in antibiotic degradation, and the preparation method comprises the following steps: (1) dispersing g-C3N5 in water, and adjusting pH to obtain a g-C3N5 suspension; (2) dispersing the LaFeO3 nano material in water, adjusting the pH value, adding a PDDA solution, stirring, separating and drying to obtain PDDA modified LaFeO3 powder; and (3) dispersing the PDDA modified LaFeO3 powder in water, dropwise adding the PDDA modified LaFeO3 powder into the g-C3N5 turbid liquid under a stirring condition, continuously stirring and reacting, and centrifuging and drying to obtain the magnetic composite photocatalyst. According to the invention, the PDDA modified LaFeO3 / g-C3N5 composite material with high catalytic activity, strong magnetic recovery performance and excellent stability is obtained, and effective degradation of antibiotics in wastewater is realized.

The invention belongs to the technical field of livestock and poultry breeding wastewater treatment and agricultural reuse, and particularly relates to an electrochemical enhanced low-pressure ultrafiltration system and method for livestock and poultry breeding tail water reuse, and the electrochemical low-pressure ultrafiltration system comprises a water inlet tank, a constant water level water tank, a gravity-driven low-pressure ultrafiltration membrane assembly, a water collecting device and a constant-voltage driving power supply; the gravity-driven low-pressure ultrafiltration membrane assembly comprises a reactor, and an anode, an ultrafiltration membrane and a cathode pre-filtering layer which are arranged in the reactor, wherein the cathode pre-filtering layer consists of a biological filter cake layer and a cathode. According to the electrochemical enhanced low-pressure ultrafiltration system and the electrochemical enhanced low-pressure ultrafiltration method for recycling livestock and poultry breeding tail water, the electrochemical enhanced gravity-driven low-pressure ultrafiltration system driven by external source constant voltage is adopted according to the characteristics of livestock and poultry breeding waste water tail water; heavy metal reduction, antibiotic degradation, pathogen interception, resistance gene transmission inhibition and membrane pollution control can be synchronously realized under the condition of low energy consumption, nitrogen and phosphorus resources in wastewater are reserved, and safe recycling of agricultural irrigation is guaranteed.

The application belongs to the technical field of photocatalytic materials and the field of environmental governance, and discloses a preparation method and application of a heterojunction photocatalytic material for degrading fluoroquinolone antibiotics. The catalytic material is an S-type photocatalytic material, and the heterojunction photocatalytic material can be prepared through a simple hydrothermal method. By controlling the addition amount of NH2-MIL-68(In), Bi2MoO6 / NH2-MIL-68(In) heterojunctions with different component contents are obtained. Experimental results show that when the Bi2MoO6 / NH2-MIL-68(In) (BMN-2) photocatalytic material prepared by the application is applied to photocatalytic degradation of ofloxacin in water, 100% of the ofloxacin can be degraded after visible light irradiation for 90 minutes. In addition, the photocatalyst also has good photocatalytic degradation performance for ofloxacin in actual water. The heterojunction photocatalyst prepared by the application has good visible light response and excellent antibiotic degradation performance, and has good application prospect in the field of photocatalytic degradation of antibiotics.

The invention relates to the technical field of antibiotic degradation materials, in particular to a magnetic catalyst with wide pH adaptability for degrading antibiotics and a preparation method of the magnetic catalyst. The preparation method comprises the following steps: reacting nickel salt with 2-methylimidazole in a solvent to obtain a nickel precursor; the preparation method comprises the following steps: reacting a nickel precursor, cobalt salt, polyvinylpyrrolidone and dimethylimidazole in a solvent, collecting a solid phase, and drying to obtain cobalt-nickel bimetal MOF; and carrying out heat treatment on the cobalt-nickel bimetallic MOF in argon to obtain the cobalt-nickel bimetallic MOF. Precursor powder of Ni and dimethylimidazole is pre-synthesized, then ZIF-67 is attached to the surface of the powder to generate an MOF structure, double metals of Co and Ni are introduced, the integrity of the MOF structure is kept, the material is endowed with magnetism, and the material has high catalytic activity and is easy to separate. Meanwhile, due to the simultaneous existence of Co and Ni, the synergistic effect is achieved, and the catalyst has higher catalytic activity and is universal to various antibiotics in water.

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.

The invention belongs to the technical field of water treatment, and particularly relates to a biological fluidized bed immobilized microorganism wastewater treatment device and method, the biological fluidized bed immobilized microorganism wastewater treatment device is of a tank body structure, and a biological reaction area is arranged in a tank body; the biological reaction area comprises fixed plates and embedded balls, the fixed plates comprise a first fixed plate and a second fixed plate, and the embedded balls are arranged between the first fixed plate and the second fixed plate; the embedded pellets are prepared from polyvinyl alcohol, sodium alginate, nano modified charcoal and antibiotic degrading bacteria. A biological fluidized bed is creatively combined with an immobilized microorganism technology, so that microorganisms can be stably attached to a carrier, the utilization rate of the microorganisms is increased, and the resistance of the microorganisms to a severe environment is enhanced; according to the biological fluidized bed, microbial carrier particles are fluidized in fluid, so that the contact area between microorganisms and a substrate is increased, and the mass transfer efficiency is improved.

The invention relates to the field of antibiotic degradation, and discloses a plant growth condition optimization method based on antibiotic pollutant degradation effect analysis, which comprises the following steps: sampling soil polluted by antibiotic pollutants and carrying out variety concentration detection to determine plants capable of carrying out antibiotic pollutant degradation, namely target degraded plants; and then performing experimental simulation on different types of antibiotic pollutants based on the target degradation plant, evaluating an experimental result, and generating, optimizing and adjusting growth conditions of the target degradation plant according to the degradation rate. According to the method, the antibiotic degradation efficiency of the plants can be improved by optimizing the growth conditions of the plants, such as temperature, illumination and humidity, so that the economic benefits of the plants in antibiotic pollution treatment are increased.

The invention relates to the field of antibiotic degradation, in particular to an aminoglycoside antibiotic degradation microbial inoculum as well as a preparation method and application thereof. The aminoglycoside antibiotic degrading bacterial agent is prepared from the following raw materials: a seed solution of Chryseobacterium (Chryseobacterium sp.) (Chryseobacterium Zn-C) and iron lanthanum modified hydrothermal carbon. The preparation method comprises the following steps: (1) pretreating straws by using a ferric chloride and lanthanum chloride composite solution, and carrying out hydrothermal carbonization; (2) preparing a Chryseobacterium (Chryseobacterium sp.) (Chryseobacterium Zn-C seed solution, and preparing a seed solution of the Chryseobacterium (Chryseobacterium sp.) (Chryseobacterium Zn-C); and (3) compounding the iron-lanthanum modified hydrothermal carbon with the seed solution to form the aminoglycoside antibiotic degrading microbial inoculum. The microbial agent is put into a water body, soil or compost polluted by the aminoglycoside antibiotics to degrade the aminoglycoside antibiotics so as to achieve the pollution remediation effect.

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.

The application belongs to the technical field of water treatment and specifically relates to a kind of biological fluidized bed immobilized microorganism wastewater treatment device and method, which is a tank structure, and a biological reaction zone is arranged in the tank; the biological reaction zone comprises a fixed plate and embedded beads, the fixed plate comprises a first fixed plate and a second fixed plate, and the embedded beads are arranged between the first fixed plate and the second fixed plate; the embedded beads are composed of polyvinyl alcohol, sodium alginate, nano-modified biochar and antibiotic-degrading bacteria. The application creatively combines the biological fluidized bed with the immobilized microorganism technology, so that the microorganisms can be stably attached to the carrier, which not only improves the utilization rate of the microorganisms, but also enhances their resistance to harsh environments; the biological fluidized bed makes the microorganism carrier particles in a fluidized state in the fluid, increases the contact area between the microorganisms and the substrate, and thus improves the mass transfer efficiency.

The present application relates to the field of antibiotic degradation, and discloses a plant growth condition optimization method based on antibiotic pollutant degradation effect analysis, comprising the following steps: through sampling soil contaminated by antibiotic pollutants and detecting the types and concentrations, determining plants that can degrade antibiotic pollutants, i.e., target degradation plants, then based on the target degradation plants, performing experimental simulation on different types of antibiotic pollutants, and evaluating the experimental results, generating and adjusting the growth conditions of the target degradation plants according to the degradation rate optimization. The present application can optimize the growth conditions of plants, such as temperature, illumination, humidity, etc., improve the degradation efficiency of plants on antibiotics, and thus increase the economic benefits of plants in antibiotic pollution control.

The application discloses a PDDA modified LaFeO3 / g-C3N5 magnetic composite photocatalyst, a preparation method thereof and application of the photocatalyst in antibiotic degradation, and comprises the following steps: (1) dispersing g-C3N5 in water and adjusting pH to obtain a g-C3N5 suspension; (2) dispersing LaFeO3 nanomaterial in water and adjusting pH, adding a PDDA solution and stirring, and then separating and drying to obtain PDDA modified LaFeO3 powder; (3) dispersing the PDDA modified LaFeO3 powder in water, and under stirring conditions, dropping the powder into the g-C3N5 suspension, continuing to stir and react, and then centrifuging and drying to obtain the magnetic composite photocatalyst. The PDDA modified LaFeO3 / g-C3N5 composite material obtained in the application has high catalytic activity, strong magnetic recovery performance and excellent stability, and realizes effective degradation of antibiotics in wastewater.

The present invention relates to the technical field of sewage treatment, and specifically relates to a method for treating antibiotic pollution in basin water bodies, comprising the following steps: S1. Applying an oxidant to the extracted basin water body and applying a direct current electric field to obtain a once-treated water body; S2. Applying activated microspheres and performing ultraviolet light irradiation treatment to obtain reclaimed water; S3. Reclaiming the reclaimed water into the basin water body in intervals and applying activated microspheres with corresponding diameters and masses to the reclaimed water in each interval; The treatment method of the present invention first realizes the directional oxidation of antibiotic molecules through the coupling effect of the direct current electric field and the oxidant. After the reaction is completed, the pH is adjusted to promote the coprecipitation of antibiotic degradation products and metal ions, and colloidal pollutants are removed synchronously; Then, activated microspheres and ultraviolet light irradiation treatment are applied to realize the mineralization of antibiotics. When recharging, it is recharged in intervals to enhance the treatment effect of antibiotics in the basin water body.