558 results about "Biological membrane" patented technology

The embodiment of the invention relates to electrochemical enhanced biological integrated intelligent regulation and control equipment for treating organic wastewater. The electrochemical enhanced biological integrated intelligent regulation and control equipment comprises an electrochemical enhanced biodegradation module and an intelligent control system, the electrochemical enhanced biodegradation module comprises a porous membrane electrode assembly, a power supply control system, an electrolyte adding system, a fixed bed biological membrane, an aeration system and a carbon source adding system; the intelligent control system comprises a data acquisition and remote monitoring module and a PLC (Programmable Logic Controller); the data acquisition and remote monitoring module acquires parameters such as COD (Chemical Oxygen Demand), dissolved oxygen concentration, ammonia nitrogen, total nitrogen and conductivity of the electrochemical enhanced biodegradation module and transmits the parameters to the PLC; and the PLC receives the parameters, and automatically adjusts one or more of voltage, current density, aeration rate and carbon source dosage based on a preset model established by a support vector regression and neural network machine learning algorithm. The intelligent regulation and control equipment can keep an optimal treatment state under different wastewater characteristics and load conditions, and has strong adaptability to environment or load fluctuation.

The invention relates to a continuous flow AOA whole-course anaerobic ammonia oxidation self-enrichment enhanced denitrification system and method, and the system comprises a front anoxic tank, an aerobic tank and a rear anoxic tank which are connected in series, and is filled with a biological filler; the monitoring aeration device comprises an ammonia nitrogen detector and an aeration unit which are connected with the aerobic tank; the reflux device is used for communicating a reflux outlet of the rear anoxic tank with water distribution of the front anoxic tank; and the PID control unit is connected with the monitoring aeration device, the backwashing control valve and the reflux device. The method comprises the following steps: sewage flows into the front anoxic tank, the aerobic tank and the rear anoxic tank; regulating and controlling the reflux ratio to domesticate the biological membrane of the aerobic tank; the ammonia nitrogen concentration of effluent of the aerobic tank is detected in real time through an ammonia nitrogen detector, and the PI D control unit dynamically adjusts the aeration rate of the aerobic tank according to the ammonia nitrogen concentration value and a preset target value, so that the aerobic tank and the rear anoxic tank form an anaerobic ammonium oxidation bacteria self-enrichment environment; the backflow device is used for enabling effluent of the rear anoxic tank to flow back to the front anoxic tank according to a preset proportion, so as to form a whole-process anaerobic ammonia oxidation self-enrichment environment.

The invention relates to the technical field of data monitoring analysis, in particular to a background monitoring system based on a beverage dispenser, which comprises a data acquisition module for calculating a dynamic deviation coefficient between a current ratio and a standard ratio; the compensation decision module is used for outputting flow compensation parameters of each channel based on the dynamic deviation coefficient; the regulation and control module adjusts the opening degree of the electromagnetic valve based on the flow compensation parameters; the uniformity extraction module is used for collecting the adjusted vibration frequency spectrum of the mixing bin and extracting a target frequency band energy value as a mixing uniformity index; and the risk prediction module is used for triggering a biological membrane risk prediction model when the mixing uniformity index is lower than a uniformity threshold value. According to the method, the problem of non-uniform mixing is found in time, early warning and optimization adjustment are triggered, and the matching problem and biological membrane generation caused by non-uniform mixing are effectively avoided.

The invention relates to the technical field of water treatment equipment, in particular to an ultrasonic water treatment equipment control method and system based on variable-frequency vibration waves. According to the method, based on preset fluid working condition parameters, ultrasonic frequency conversion vibration wave signals covering multiple frequency bands are dynamically generated, and a vibrator array is driven to generate a composite sound field; a cavitation effect and an activation effect are synchronously excited in a fluid medium through variable-frequency vibration wave signals, so that physical form depolymerization and surface charge distribution change of scale forming substances occur; a shearing effect is formed on a fluid-pipe wall boundary layer, an attached state biological membrane structure is stripped, and the microscopic binding force of a crystallized scale body is loosened; monitoring the dispersion degree of scale-forming substances in the fluid and the state of a boundary layer, and adjusting the frequency band combination and energy distribution of variable-frequency vibration waves to maintain scale inhibition; and continuously optimizing the frequency conversion strategy and the sound field intensity according to the feedback data of the scale inhibition maintenance state. Through intelligent multi-band frequency conversion control of the ultrasonic water treatment equipment, efficient and environment-friendly water treatment and scale prevention effects are realized.

The invention discloses a bullfrog three-dimensional breeding system and an accurate feeding control method, and the bullfrog three-dimensional breeding system is characterized in that the bullfrog three-dimensional breeding system comprises a modular breeding unit, a gradient water level adjusting device and an interlayer isolation water circulation system, the three-step type three-dimensional framework is divided into a bottom layer tadpole pond, a middle layer froglet net cage and a top layer adult frog breeding bin, a control module is installed on each layer, and anti-escape assemblies are installed on the middle layer froglet net cage and the top layer adult frog breeding bin; the gradient water level adjusting device comprises a bionic step and a water level sensor which are arranged and installed, and the water level gradient adjusting and behavior inducing functions are achieved through engineering design. The interlayer isolation water circulation system comprises a distributed sensor, a UV sterilization and biological membrane filtration dual purification assembly and an adjustable air curtain, the adjustable air curtain forms a directional barrier between different layers of the three-dimensional culture system by dynamically regulating and controlling airflow, and independent environmental parameters of each layer are maintained.

A working wire for a biological sensor is disclosed. The working wire includes a substrate comprising cobalt-chromium (Co—Cr) alloy or Nitinol alloy, a platinum layer comprising platinum on the substrate, and a membrane layer comprising a biological membrane applied over the platinum layer.

The invention discloses injectable hydrogel for photo-thermal adjuvant therapy of periodontitis and a preparation method, and belongs to the technical field of high polymer material preparation, the preparation method comprises the following steps: reacting MXene dispersion liquid with epigallocatechin gallate and MgSO4; then sequentially carrying out ultrasonic treatment, centrifugation, washing and freeze-drying to obtain a multifunctional nanosheet MP-Mg; adding the multifunctional nanosheet MP-Mg into an oxidized gellan gum aqueous solution, and carrying out a mixed reaction to obtain a solution A; mixing the quaternary ammonium salt chitosan aqueous solution and the carboxymethyl chitosan aqueous solution in equal volume, and reacting to obtain a solution B; and mixing the solution A and the solution B in equal volume for reaction. The hydrogel prepared by the preparation method disclosed by the invention has injectability, photo-thermal responsiveness, biological membrane penetrability, synergistic antibacterial property and long-acting anti-inflammatory property, and an innovative and practical photo-thermal adjuvant therapy platform is provided for clinical treatment of periodontitis.

The invention provides a nano-drug based on atomic layer deposition and a preparation method of the nano-drug, mesoporous silica is taken as a carrier, bimetallic nanoparticles are precisely deposited through ALD, and chemotherapeutic drugs and antibacterial components are loaded by combining amination and targeted PEG modification, so that the following functions are realized: (1) H2O2 in a tumor microenvironment is catalyzed to generate reactive oxygen species (ROS); removing fusobacterium nucleatum and damaging a biological membrane of the fusobacterium nucleatum; (2) GSH is consumed through Fenton reaction, and tumor drug resistance is reversed; and (3) the drug is released in pH response, and tumor cells are accurately killed. The invention further provides application of the nano-drug based on atomic layer deposition in treatment of related drug-resistant colorectal cancer induced by fusobacterium nucleatum, the process is controllable, the biocompatibility is excellent, the treatment effect on the drug-resistant colorectal cancer is remarkably improved, and the nano-drug has wide clinical application prospects.

The invention discloses a Fe / C loaded membrane module, a PN / A-MABR autotrophic nitrogen removal device, a preparation method and a sewage treatment method, and belongs to the technical field of sewage treatment. According to the invention, the problem that the treatment effect is influenced by NO3 <->-N accumulation in the existing membrane aeration coupling partial nitrification-anaerobic ammonia oxidation process is solved. Comprising a frame and a membrane body attached to the outer portion of the frame, the membrane body comprises a hydrophobic organic membrane layer, an iron-carbon material layer and a biological membrane layer which are sequentially arranged, and the hydrophobic organic membrane layer is attached to the outer portion of the frame. The iron-carbon material is added between the hydrophobic organic membrane layer and the biological membrane layer, the iron-carbon micro-electrolysis process is coupled with the dissimilatory process of nitrate generated by microbial metabolism, the removal of NO3 <->-N generated by anaerobic ammonia oxidation is enhanced, and the total nitrogen removal efficiency is improved.

The invention discloses a self-cleaning composite piezoelectric ceramic membrane as well as a preparation method and application thereof, and belongs to the field of composite ceramic membranes. The technical problem that an existing ceramic membrane separation technology is poor in biomembrane pollution resisting effect is solved. According to the preparation method, the barium titanate ceramic membrane is firstly prepared to serve as the base membrane, then the copper oxide one-dimensional nanostructure is loaded on the piezoelectric ceramic substrate, and the base membrane has a large membrane surface area and can be combined with more catalysts, so that more active sites are provided for catalytic reaction; according to the composite membrane, the hydrophilicity, the anti-pollution performance and the piezoelectric catalysis self-cleaning performance of the membrane are remarkably improved, and pollutants in water can be quickly and effectively separated, so that the flux and the anti-pollution performance of the membrane are improved.

The invention provides a recombinant chicken antibacterial peptide aiming at drug-resistant staphylococcus aureus, and belongs to the technical field of veterinarians. The recombinant chicken antibacterial peptide is expressed through genetic engineering recombinant escherichia coli. Three natural chicken antibacterial peptide active regions are fused, and two disulfide bonds are introduced to stabilize the structure of the recombinant chicken antibacterial peptide and enhance the affinity of the recombinant chicken antibacterial peptide to staphylococcus aureus outer membrane protein. The minimum inhibitory concentration of the recombinant chicken antibacterial peptide to the drug-resistant staphylococcus aureus is obviously lower than that of three natural chicken antibacterial peptides, and the formation of a biomembrane of a USA300 strain of the drug-resistant staphylococcus aureus can be thoroughly inhibited when the minimum inhibitory concentration is 8 mu g / mL. The recombinant chicken antibacterial peptide has a good antibacterial effect on different drug-resistant staphylococcus aureus separated from a chicken house, and can effectively solve the infection problem of the drug-resistant staphylococcus aureus in the chicken house.

The invention relates to the technical field of nano-drug presentation systems, in particular to a nanoparticle for synergistically promoting hepatoma ferroptosis based on mesoporous manganese dioxide, salazosulfapyridine and a tumor cell biological membrane as well as a preparation method and application of the nanoparticle. The nanoparticle in the scheme comprises mesoporous manganese dioxide which is modified with a tumor cell membrane on the surface and loaded with salazosulfapyridine. According to the technical scheme, the nanoparticles can effectively induce hepatoma cell ferroptosis through a multi-target strategy. The salazosulfapyridine and the mesoporous manganese dioxide have a synergistic effect to enhance the ferroptosis effect; the tumor cell biological membrane has homologous targeting property, so that the accumulation capacity of the nanoparticles in liver cancer tissues is remarkably improved; the nanoparticle provided by the invention not only can be used for treatment, but also can monitor the change in the treatment process in real time. According to the technical scheme, the technical problem that a nano-drug presentation system for effectively inducing ferroptosis aiming at multiple target spots is lacked in the prior art can be solved, and the technical scheme has important significance in improving the survival rate and the life quality of liver cancer patients.

The invention relates to the field of pharmacy, and discloses a Chinese herbal medicine and marine extract combined antibacterial and anti-inflammatory pharmaceutical composition which comprises the following components in parts by weight: 5-10 parts of baicalin extract; 3 to 7 parts of an andrographolide extract; 2-5 parts of sulfated brown algae polysaccharide; 0.2 to 1 part of sponge extract; wherein the baicalin extract is derived from roots of scutellaria baicalensis and is obtained by extracting with an ethanol-water mixed solvent; the andrographolide extract is derived from the whole herb of andrographis paniculata and is obtained by extracting with an ethanol-water mixed solvent; the sulfated fucoidan is derived from fucoidan and is prepared by enzymolysis and alcohol precipitation methods; the sponge extract is derived from sponge and is obtained by organic solvent extraction, separation and purification. By adopting the technical scheme of synergistically compounding the Chinese herbal medicine active ingredients and the marine extract, the technical effects of destroying a biological membrane barrier and removing stubborn infection lesions in treatment of bacterial vaginitis, candida vaginitis associated biological membrane infection and cervicitis are achieved.

The invention discloses a preparation method of photo-thermal-MMP dual-response matrix hydrogel and application of the photo-thermal-MMP dual-response matrix hydrogel in diabetic wound repair, and belongs to the technical field of biological medicine. According to the present invention, the Cur (at) ZIF-8 (at) MMPDA / dAMG composite hydrogel is composed of an amnion source photo-crosslinked matrix hydrogel, curcumin-loaded ZIF-8 nanoparticles and MMP2 peptide modified polydopamine, and the Cur (at) ZIF-8 (at) MMPDA / dAMG composite hydrogel is obtained; the ZIF-8 nanoparticles decline in an acid environment to release zinc ions, destroy bacterial cell membranes, enhance the permeability of a biological membrane and cooperatively kill drug-resistant bacteria in combination with a photothermal effect, Cur is loaded through ZIF-8 to form Cur-coated ZIF-8, then a Cur-coated ZIF-8-coated MMPDA / dAMG double-drug-loading system is constructed through an MMPDA medium, and a photothermal antibacterial, anti-inflammatory and regeneration-promoting multi-mode therapy is formed for a wound surface in the acid environment. Therefore, wound healing is accelerated.

The invention discloses a device and process for treating pharmaceutical wastewater through an internal electrolysis method. The device comprises a pretreatment unit, an internal electrolysis reaction unit, a precipitation separation unit, a pH adjusting unit and a control system which are sequentially connected. The internal electrolytic reaction unit comprises a reaction tower body, the top of the reaction tower body is provided with a water inlet, and the bottom is provided with a water outlet; a supporting layer, an iron-carbon micro-electrolysis filler layer, a catalytic oxidation layer and a biological membrane layer are sequentially arranged in the reaction tower body from bottom to top, the iron-carbon micro-electrolysis filler layer comprises an iron-carbon composite filler, and the mass ratio of iron to carbon in the iron-carbon composite filler is (1: 1)-(3: 1). The internal electrolysis reaction unit with a multi-level filling structure is adopted, iron-carbon micro-electrolysis, catalytic oxidation and biodegradation are organically combined to form a synergistic effect, the removal efficiency of refractory organics in the pharmaceutical wastewater is remarkably improved, and the COD removal rate can reach 80% or above.

The invention discloses an application of NSC348884 in preparation of an antibacterial drug, the bacteria of the NSC348884 are gram-negative bacteria or drug-resistant gram-negative bacteria, and the gram-negative bacteria are acinetobacter baumannii, escherichia coli, pseudomonas aeruginosa or klebsiella pneumoniae; based on an antibacterial drug high-throughput screening technology, it is found from 1280 small molecule compounds that the benzimidazole compound NSC348884 has direct bacteriostasis and sterilization effects on gram-negative bacteria and drug-resistant gram-negative bacteria, and no drug resistance is generated after the benzimidazole compound NSC348884 is continuously applied for 14 days. Further research shows that NSC348884 can interfere with lipid synthesis of gram-negative bacterium cell membranes, inhibit formation of biological membranes and induce lipid metabolism disorder, so that bacteriostatic and bactericidal effects are achieved. In addition, the NSC348884 can also enhance the sensitivity of the drug-resistant bacteria to the imipenem and the polymyxin B.

The invention relates to the technical field of water pollution treatment equipment, and discloses glyphosate production sewage treatment equipment based on biological treatment.The glyphosate production sewage treatment equipment based on biological treatment.The glyphosate production sewage treatment equipment based on biological treatment.The glyphosate production sewage treatment equipment based on biological treatmentcomprises a treatment tank, a water distributor fixedly arranged at the top of an inner cavity of the treatment tank and a supporting ring rotationally arranged in the middle of the inner cavity of the treatment tank; a water outlet is formed in one side of the bottom of the treatment tank in a communicating manner, a biological membrane is mounted on the inner side of the supporting ring, and iron particles are mounted in the biological membrane in an embedded manner; the response characteristic that iron particles are embedded in an elastic biological membrane is utilized, local deformation of the biological membrane is induced through attraction of an electromagnet, membrane holes generate a stretching effect, blocking substances such as colloidal substances and flocculates attached to the membrane holes are effectively loosened and stripped, and the blocking substances are effectively removed by combining rotation of the biological membrane and dynamic cleaning of the water spraying assembly. The double blockage removal mechanism of physical deformation and hydraulic scouring is achieved, and compared with a traditional static cleaning mode, the blockage removal efficiency is higher.

The invention discloses a frontalon tooth healing targeting nano preparation and a preparation process thereof, belongs to the technical field of nano medicines, and aims to solve the problems that the natural regeneration capacity of teeth is limited and the combination of ethnic drugs and modern biotechnology is caused due to the lack of a targeting inhibition means for USAG-1. Comprising an anti-USAG-1 monoclonal antibody, ethnic drug components and a nano-carrier, the anti-USAG-1 monoclonal antibody is connected to the surface of the nano-carrier through covalent bonds, the ethnic drug components are loaded in the nano-carrier through physical action, and the nano-carrier is a polylactic acid-glycolic acid copolymer or chitosan; the anti-USAG-1 monoclonal antibody is used as a targeting ligand, is high in targeting property, can accurately reach a tooth focus, improves the drug utilization rate, enhances the curative effect, integrates multiple ethnic drug components, exerts a synergistic effect, can increase the contact area between the ethnic drug components and a biological membrane, promotes the absorption and transport of the drug, and improves the bioavailability of the drug. And the medicine can better play a treatment role.

The invention relates to the technical field of sewage treatment, in particular to a preparation method of a degradable bactericide for an oil field. According to the invention, a hydroxypropyl guanidine gum-polycaprolactone-ethylenediamine fragment copolymer is taken as a carrier, a methylisothiazolinone quaternary ammonium salt (Q-MIT) bactericide is loaded, and the degradable bactericide for the oil field is obtained by cooperating with a dodecyl ethyl sulfide (TC-SE) bactericide and combining with sodium polyaspartate. A carrier forms a hydrogen bond with a polar group on the surface of a biological membrane through a hydroxypropyl guanidine gum main chain to realize targeted anchoring, a polycaprolactone branched chain encapsulates Q-MIT through a hydrophobic effect, primary amino groups of ethylenediamine are introduced to form a pH sensitive Schiff base bond with Q-MIT, and the primary amino groups and adipic dihydrazide form a thermal response hydrazide bond to construct a dual dynamic covalent bond, so that controlled release of Q-MIT is realized, and the biomembrane is prepared. And moreover, the components of the whole system are connected through degradable chemical bonds, so that the environmental protection property and sustainability of oil field operation are guaranteed.

The invention provides an integrated sewage treatment method and system, a storage medium and electronic equipment. The method comprises the following steps: collecting sewage to be treated; carrying out pretreatment on the sewage to be treated; conveying the pretreated sewage to a bio-membrane reactor and starting bio-membrane treatment; conveying the sewage treated by the biological membrane to a multi-stage membrane assembly, and starting multi-stage membrane treatment; and carrying out post-treatment on the sewage subjected to the multi-stage membrane treatment. According to the integrated sewage treatment method disclosed by the invention, different types of pollutants are efficiently removed by integrating a biological membrane technology and a plurality of membrane filtration technologies, and deep treatment and recycling of sewage are realized.

The invention relates to bacteriostatic bentonite cat litter and a preparation method thereof, and belongs to the technical field of pet supplies. The bacteriostatic bentonite cat litter sequentially comprises a sodium bentonite matrix embedded with a bacteriostatic agent, a metal oxide layer and a biological membrane layer from inside to outside, the sodium bentonite matrix is obtained by mixing and aging bentonite and a sodium modifying agent in a solvent. When the biological membrane is in contact with excrement, the outer-layer biological membrane preferentially blocks liquid permeation, the middle-layer nano ZnO still generates active oxygen in a weak light environment, and the inner-layer Ag < + >-loaded zeolite slowly releases and inhibits bacteria, so that the antibacterial persistence can be improved. The bacteriostatic bentonite cat litter disclosed by the invention is remarkable in deodorization and antibacterial effects, does not stick to hands when being used, does not generate dust, and has relatively strong caking performance.

The invention discloses gene-simplified bacillus subtilis for producing surfactin and application of the gene-simplified bacillus subtilis, and belongs to the technical field of gene engineering. According to the method disclosed by the invention, the variety of non-essential genes is determined by analyzing and identifying the bad performance influencing the fermentation production of the surfactin by the bacillus subtilis. Therefore, on the basis of the bacillus subtilis 168, a phosphopantetheinyl transferase (sfp) gene is firstly integrated, so that the surfactin production capacity of host bacteria is recovered; then, genes (clusters) in five aspects of a biological membrane synthesis pathway, a metabolic by-product pathway, spore generation, a protease system and flagellum generation are simplified. After the strain EX10 is simplified, the fermentation performance is optimized, and the fermentation yield reaches up to 11.2 g / L, which is 2.1 times higher than that of the original strain. Therefore, the genome-simplified strain has a good application prospect as a chassis cell for industrially and efficiently producing surfactin.

The invention relates to the technical field of sewage treatment, particularly discloses an iron oxide red wastewater treatment system and treatment method based on anaerobic ammonia oxidation coupled AI prediction, and solves the problems of insufficient prediction capability and high operation cost in the prior art. The system comprises a sewage treatment module and an AI control module, wherein the sewage treatment module adopts an integrated biofilm process anaerobic ammonia oxidation system, is equipped with a sensing equipment group to detect water quality parameters, and controls the equipment group to execute instructions; the AI control module receives water quality data through a real-time data interface, generates feature data in combination with a production plan and a scheduling table, predicts water quality by using a GRU-QR model and outputs an advanced control instruction, and then dynamically optimizes the model and triggers compensation control according to actually measured data to form double closed-loop control. The system has the advantages of stable effluent ammonia nitrogen, high efficiency, improvement of regulation and control precision, reduction of medicament dosage and the like, and can effectively reduce the cost and realize high-intelligence control.

The invention provides a reciprocating type membrane aeration bio-membrane reactor, which comprises a membrane box, the top of which is provided with an action wheel; the membrane assembly is arranged in the membrane box; the guide rail plate is used for being arranged on a membrane pool, an arc-shaped guide rail groove matched with the action wheel is formed in the guide rail plate in the length direction of the guide rail plate, and the arc-shaped guide rail groove is bent downwards; the buoyancy assembly is arranged at the bottom of the membrane box; the power assembly is used for being arranged on the membrane pool and connected with the membrane box, and the power assembly is used for driving the membrane box to reciprocate in the length direction of the arc-shaped guide rail groove. According to the reciprocating type membrane aeration bio-membrane reactor, the energy consumption can be reduced, and the mass transfer effect and the membrane area utilization rate can be improved.

The invention provides a pear vinegar production wastewater treatment process, which comprises a primary treatment box, the top of the primary treatment box is rotatably provided with a top plate, the bottom of the primary treatment box is fixedly provided with six groups of partition plates in equidistant circle center symmetry, the tops of the partition plates are rotatably provided with a first turntable, and a filter assembly is arranged between the first turntable and the top plate; the filtering assembly comprises a filtering frame, the filtering frame is located on the circle center axis of the primary treatment box, the bottom of the filtering frame is fixedly connected with the first rotating disc, and the top of the filtering frame penetrates out of the top plate. Compared with the prior art, through cooperation of the driving assembly and transmission, filtered wastewater is fed into different cavities for waiting, secondary pollution can be avoided, and the filtering efficiency is improved; the biological membrane filter cartridges are alternately fed into the biological treatment box, and the corresponding biological membrane filter cartridges are switched every time the chambers are switched, so that the situation that one biological membrane filter cartridge is used for a long time is avoided, the treatment efficiency is improved, the intermediate waiting time is shortened, and meanwhile, impurities accumulated in the primary treatment box are conveniently cleaned.

The utility model relates to an initial rainwater treatment device for a rainwater and sewage diversion system, which comprises a rainwater collection unit and a rainwater treatment unit, the rainwater collection unit comprises a rainwater drainage pipeline, a primary rainwater drainage pipeline and a middle and later rainwater drainage pipeline; the rainwater treatment unit comprises a land water boundary, a water collecting area, a water collecting area retaining wall, a main treatment area, a main treatment area retaining wall, a precipitation separation area, a water outlet dam and a main water body; the primary rainwater drainage pipeline is communicated with the water collecting area through the land-water boundary; the middle and later stage rainwater drainage pipeline is directly communicated with the main water body; the rainwater treatment system has the advantages that pollutants in initial rainwater can be effectively removed through the cyclone separator and the biological membrane treatment system according to the water quality characteristics of the initial rainwater of the rainwater and sewage diversion and collection system, so that polluted initial rainwater and pollution-free later rainwater can be treated in a differentiated manner; and treatment and diversion of polluted rainwater and pollution-free rainwater are realized.

The invention discloses a household hot water system utilizing ultraviolet-high-energy wave composite sterilization and a sterilization method thereof, and relates to the technical field of hot water sterilization. Through the cooperative technology of integrating ultraviolet rays and the high-energy wave cavitation effect, the purposes of efficiently removing legionella and biological membranes and reducing energy consumption are achieved, and the safety and economical efficiency of a household hot water system are guaranteed. The system comprises a water heater, a sterilization chamber and a PLC (Programmable Logic Controller), a water inlet of the water heater is communicated with a municipal water supply system, a water outlet is communicated with a water inlet of the sterilization chamber, and a circulating water outlet of the sterilization chamber is communicated with a circulating water inlet of the water heater; a circulating pump is arranged between the circulating water outlet of the sterilizing chamber and the circulating water inlet of the water heater; a high-energy wave sterilization device and a UVC lamp tube are arranged in the sterilization chamber; the PLC is connected with the circulating pump, the high-energy wave sterilization device and the UVC lamp tube; the PLC can control the circulating pump, the high-energy wave sterilization device or the UVC lamp tube to start and stop according to the sterilization mode. The invention also provides a sterilization method based on the system.

The utility model discloses a sewage treatment mechanism and a sewage treatment device, the sewage treatment mechanism comprises a support frame, and a biological membrane treatment assembly, an MABR membrane purification assembly and a suspension assembly which are respectively arranged on the support frame, and the suspension assembly is used for enabling the sewage treatment mechanism to suspend in water; the MABR membrane purification assembly comprises a first MABR aeration membrane and a second MABR aeration membrane, a first air hole with a first aperture is formed in the first MABR aeration membrane, a second air hole with a second aperture is formed in the second MABR aeration membrane, and the first aperture is larger than the second aperture; the utility model further discloses a sewage treatment device comprising the sewage treatment mechanism. The sewage treatment mechanism disclosed by the utility model can form synchronous nitrification and denitrification effects, can degrade pollutants such as COD (Chemical Oxygen Demand), total nitrogen and the like under the synchronous action of the biological membrane, and can suspend the whole structure in water without being influenced by the change of the liquid level of the water, so that the use efficiency of the two membrane components is greatly improved.

The invention relates to the field of adsorption materials, in particular to a discrete carbon-based biological base material for targeted treatment of high-concentration organic wastewater and a preparation process thereof.The discrete carbon-based biological base material is prepared from, by weight, 65-70 parts of activated carbon fibers, 8-10 parts of PLA fibers, 5-7 parts of sodium lignin sulfonate, 5-8 parts of ferroferric oxide magnetic particles and 8-10 parts of a carbon nitride catalyst; biPO4 is doped in the carbon nitride catalyst. According to the discrete carbon-based biological base material, the activated carbon fibers rapidly adsorb organic matters in high-concentration wastewater, the PLA releases a carbon source and accelerates formation of a biological membrane, and the biological membrane is degraded by taking the adsorbed organic matters as a substrate; the carbon nitride catalyst generates active oxygen under visible light to oxidize small molecular acid, and ferroferric oxide magnetic particles catalyze the reaction to break refractory toxins (such as antibiotics); after the reaction, the magnetic field recovers the material, sodium lignin sulfonate protects ferroferric oxide magnetic particles from corrosion, and regeneration performance is provided.

The invention discloses a lung organ chip based on a stretchable biological membrane and a preparation method of the lung organ chip, and belongs to the field of biomedicine and pharmacology. The chip comprises a top cell culture layer, a bottom vacuum negative pressure layer and a stretchable porous membrane layer, the top cell culture layer comprises a cell culture chamber, a fluid micro-channel and a fluid micro-channel outlet / inlet, and the cell culture chamber, the fluid micro-channel and the fluid micro-channel outlet / inlet are communicated with one another; the bottom vacuum negative-pressure layer comprises a vacuum negative-pressure chamber, a gas micro-channel and a gas micro-channel outlet / inlet, and the vacuum negative-pressure chamber, the gas micro-channel and the gas micro-channel outlet / inlet are communicated with one another; the stretchable porous film layer is a deformable single-layer elastic film, and a plurality of through round holes simulating the alveolar structure are formed in the middle of the stretchable porous film layer. The method has the characteristics of low cost, easiness in manufacturing, easiness in operation and the like, and application and popularization of the lung organ chip are facilitated.