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83results about How to "Increase the amount of film" patented technology
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Auto-lift environment-friendly material platform for planting of submerged plants
PendingCN106718243AHigh activityIncrease in biofilmSustainable biological treatmentReceptacle cultivationPalm fiberTreatment effect
An auto-lift environment-friendly material platform for planting of submerged plants comprises a planting platform and a fixture for fixing the planting platform and is characterized in that the planting platform comprises a frame and a bearing face, a diatomite layer serving as a growth medium and a palm fiber braid upper layer with reserved planting holes are arranged on the bearing face sequentially, the frame is provided with a light sensor for sensing underground light intensity, the light sensor is connected with a control system that controls a lifting device, and the planting platform is automatically liftably arranged on the fixture through the lifting device. The auto-lift environment-friendly material platform for planting of submerged plants is simple in structure and made of environment-friendly material, breaks the manual operation limits, is automatically lifted through the light sensor, allows submerged plants to be planted effectively under poor water transparency, and is low in cost, good in treatment effect and convenient to maintain.
Owner:无锡金利达生态科技股份有限公司
Large biofilm culturing amount MBBR suspended biofilm carrier and preparing method thereof
InactiveCN107758847AImprove hydrophilicityImprove impact resistanceSustainable biological treatmentBiological water/sewage treatmentBiocompatibility TestingVolumetric Mass Density
The invention discloses a large biofilm culturing amount MBBR suspended biofilm carrier and a preparing method thereof. The large biofilm culturing amount MBBR suspended biofilm carrier is prepared from, by weight, 65-75 parts of high density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of chitin and 0.5-2 parts of magnetic powder; the density of the large-biofilm-culturing-amount MBBR suspended biofilm carrier is 0.96-0.98 g / cm<3>. The large-biofilm-culturing-amount MBBR suspended biofilm carrier is high in biofilm culturing speed, the biofilm does not easily shed, the treatment efficiency is high, and the biofilm carrier is applicable to treating low concentration organic matter, ammonia nitrogen and low concentration organic wastewater; the biofilm carrier has very high hydrophilicity and biocompatibility,the carrier itself has very high adsorption strength on biofilm and is beneficial to intercepting and accumulating biomass on the carrier.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Ammonia nitrogen processing method for hide manufacture wastewater
InactiveCN101318739AImprove the efficiency of ammonia nitrogen removalFast regenerationTreatment with aerobic and anaerobic processesBiofilmDenitrifying bacteria
The invention provides an ammonia nitrogen treatment method of tanning waste water. The method comprises the following step that: a biological filter 1 is filled with clinoptilolite and then autotrophic nitrobacteria are fed in the filter 1 to carry out cultivation and biofilm formation (need to be carried out under the conditions of oscillation or ventilation because the nitrobacteria are aerobes); a biological filter 2 is filled with clinoptilolite and then heterotrophic denitrifying bacteria are fed in the filter 2 to carry out the cultivation and the biofilm formation (can be carried out just under a static condition because the denitrifying bacteria are anaerobes); the tanning waste water is fed in the biological filter 1 first so as to carry out oxygen supply treatment for 40 to 60 minutes; and then, waste water discharged from the biological filter 1 is fed into the biological filter 2 to carry out anaerobic treatment for 40 to 60 minutes. The ammonia nitrogen treatment method has the following main advantages that: COD in the secondary effluent of the tanning waste water can be reduced from 100 to 200mg / L to 40 to 80mg / L, while ammonia nitrogen content is reduced from 40 to 200mg / L to 10 to 35mg / L and total nitrogen is reduced by approximately 60 percent; therefore, the secondary effluent meets the requirements of treatment before the secondary effluent is fed into an urban sewage disposal plant; moreover, the ammonia nitrogen treatment method has large biofilm formation quantity, high ammonia nitrogen removing efficiency and lower cost of equipment and operation.
Owner:ZHEJIANG SHUANGLIANG SUNDA ENVIRONMENTAL PROTECTION CO LTD
Porous light-weight carbon-based biological carrier and preparation method thereof
ActiveCN103159330AIncrease the number ofHigh biological capacityBiological water/sewage treatmentFoaming agentAqueous solution
The invention provides a porous light-weight carbon-based biological carrier. The porous light-weight carbon-based biological carrier is a foamed coke powder / polyvinyl alcohol gel mixture which is prepared by performing crosslinking reaction on coke powder, a polyvinyl alcohol solution, a foaming agent solution and a crosslinking agent solution used as raw materials at normal temperature, wherein the weight percent concentration of the polyvinyl alcohol solution is 5-15%; the weight percent concentration of the foaming agent solution is 0.2-2%; the weight percent concentration of the crosslinking agent solution is 0.5-1.5%; the weight ratio of the polyvinyl alcohol water solution to the coke powder is (10-25):1; the weight ratio of the polyvinyl alcohol water solution to the foaming agent solution is (15-45):1; and the weight ratio of the polyvinyl alcohol water solution to the crosslinking agent solution is (20-50):1. The biological carrier is high in film-forming speed and microbial capacity, provides a proper nutrient source for microorganisms and has no harm to the environment. Meanwhile, the invention also provides a preparation method of the porous light-weight carbon-based biological carrier. The preparation method has the advantages of simple process, less required equipment and low preparation cost.
Owner:武汉钢铁有限公司
Method of surface modification for environmentally-friendly carbon fibers
ActiveCN103058356AIncreased oxygen-containing functional groupsEasy to handleBiological water/sewage treatmentFiberCarbon fibers
The invention relates to a method of surface modification for environmentally-friendly carbon fibers. The method comprises sequentially immersing carbon fiber protofilament with acetone and nitric acid, and activating in an atmosphere of active gas. The modified carbon fiber obtained by the method is increased in surface oxygen-containing functional groups, improved in biocompatibility, greatly improved in biofilm formation amount and biofilm formation rate, and thus is an excellent biological carrier, and can not only directly purify water quality of rivers and lakes, but also be applied in industrial wastewater treatment and purification of raw water. The modification method of the carbon fiber is simple, environmentally friendly and wide in application prospects, can be used for directly purifying the water quality of the rivers and the lakes, and has important significance for lake eutrophication control, waste water purification, drinking-water safety, cultivation of algae as raw materials of bioenergy, and self restoration of water ecosystem.
Owner:武汉环天禹生物环保科技有限公司
Method for enhancing biofilm culturing performance of graphene oxide modified biological filler
PendingCN111647189AImprove compatibilityImprove the bonding strength of the interfaceCoatingsSilane couplingAqueous ethanol
The invention provides a method for enhancing the biofilm culturing performance of a graphene oxide modified biological filler. The method comprises the following steps of: dissolving a silane coupling agent in an ethanol-water / methanol-water solution to prepare an ethanol aqueous solution of the silane coupling agent; soaking a filler substrate in the ethanol aqueous solution of the silane coupling agent at room temperature, and performing drying; weighing a certain amount of graphene oxide powder, dispersing the graphene oxide powder in deionized water, and carrying out ultrasonic treatmentto obtain a uniform dispersion liquid; and placing the filler substrate in the graphene oxide dispersion liquid, performing dipping and drying, and depositing graphene oxide on the surface of the filler substrate to form a compact layer. The coupling, modification and tackifying effects of two groups in the silane coupling agent are used as a "molecular bridge" to improve the compatibility of graphene oxide and the biological filler, enhance the interface bonding strength and increase the surface energy of the filler substrate, thus acquiring the modified filler with hydraulic impact resistance, high hydrophilicity and high biophilicity, and the biofilm culturing speed, biofilm culturing quantity and other properties are improved.
Owner:北京北控工业环保科技有限公司
Preparation method and application of multi-layer graphene oxide modified microbial carrier
ActiveCN112897705AImprove thermal stabilityEnhanced adsorption functionBiological water/sewage treatmentBiofilmMicroorganism
The invention provides a preparation method and application of a multi-layer graphene oxide modified microbial carrier. According to the method, a silane coupling agent is used for carrying out surface function modification on a polyurethane carrier, and multiple layers of graphene oxide are grafted on the surface of the carrier, so that the specific surface area and the surface structure of the carrier are increased, the microorganism surface attachment process is accelerated, and the biological loading capacity of the carrier is improved; moreover, hydrophilic functional groups are introduced into the polyurethane carrier through the graphene oxide, so that the hydrophilicity of the modified polyurethane biological carrier is improved, and the biocompatibility of the carrier is enhanced. Meanwhile, the preparation method of the multi-layer graphene oxide modified microbial carrier provided by the invention has the characteristics of simple process, low cost, strong thermal stability of the modified carrier and the like, and the prepared modified microbial carrier is beneficial to solving the problem of long biofilm culturing time in a biological immobilization process, the method has a good application prospect in a biological reaction sewage treatment system.
Owner:PEKING UNIV
MBBR filler and preparation method thereof
ActiveCN111204864AGuaranteed interface strengthImprove interface strengthWater contaminantsTreatment with aerobic and anaerobic processesPolymer scienceActive agent
The invention belongs to the technical field of high polymer materials and water treatment, and discloses an MBBR (Moving Bed Biofilm Reactor) filler which comprises the following components: a hydrophilic substrate, a toughening agent, light calcium carbonate, a density regulator, biological nutritive salt, a biological active agent and a biological enzyme activator. The toughening agent is copolymer grafted maleic anhydride, and meanwhile, hollow glass beads are selected as the density regulator, so that the problems of high density of inorganic filler of a hydrophilic filler agent and interface between the inorganic filler and a base material are solved. The invention also discloses a preparation method of the MBBR filler. Compared with polyethylene fillers, the prepared MBBR filler hasbetter hydrophilicity and biocompatibility. When the MBBR filler is used in an MBBR process, the COD removal rate is more than 85%, the ammonia nitrogen removal rate is more than 95% and the effluentCOD is less than 30mg / L. The MBBR filler is suitable for treatment of various sewage with different carbon / nitrogen and ammonia / nitrogen ratios, and is high in efficiency, high in aging and strong inuniversality.
Owner:安徽环境科技集团股份有限公司 +1
Sintering-free raw material ball filler for rural sewage treatment system, and preparation and maintenance method of sintering-free raw material ball filler
ActiveCN114163176AReduce packing weightHigh specific surface areaSolid waste managementSustainable biological treatmentWater treatment systemFiller - product
The invention discloses a sintering-free raw material ball filler for a rural sewage treatment system as well as a preparation method, a maintenance method and application of the sintering-free raw material ball filler. Comprising 50-60% of fly ash, 10-20% of dewatered sludge, 20-30% of cement, 5-8% of calcium oxide, 1-2% of ammonium acetate, 3-5% of sodium silicate and 0.04-0.06% of triethanolamine. Preparing a raw material ball filler by adopting a sintering-free process; the obtained raw material ball filler is sequentially subjected to normal-temperature curing, high-temperature steam curing and water spraying curing, a filler product with excellent ineffective efficiency is prepared from a finished product, the filler product is applied to a BAF system, and the removal rates of COD and NH3-N in the stable period can be stabilized at 84% and 71% respectively. In a word, the fly ash is used as a main raw material, the cement and the dewatered sludge are added, the calcium oxide is used as an auxiliary exciting agent, the ammonium acetate is used as a pore increasing agent, the specific surface area of the filler is increased, and the raw material ball filler has high porosity, large specific surface area, moderate strength and excellent performance.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Preparation method of maleic anhydride liquid-phase grafted basalt fiber biological carrier
InactiveCN111320256ALarge specific surface areaGood chemical stabilityTreatment with anaerobic digestion processesSustainable biological treatmentEthyl acetateBasalt fiber
The invention belongs to the technical field of sewage / wastewater treatment biofilm carriers, and relates to modification of inorganic basalt fiber carriers, in particular to a surface modification method of micron-sized inorganic basalt fiber carriers for sewage / wastewater treatment. The preparation method comprises the following steps: firstly, soaking basalt fibers pretreated by acetone into adilute alkali solution for etching, then activating groups on the surfaces of the basalt fibers by using a 30% hydrogen peroxide solution, soaking the basalt fibers into an ethyl acetate solution of maleic anhydride, carrying out a grafting reaction by taking concentrated hydrochloric acid as an initiator, and finally, drying to constant weight. According to the basalt fiber carrier prepared by the invention, the surface roughness is remarkably improved, and meanwhile, due to the increase of oxygen-containing functional groups on the surface of the basalt fiber, the basalt fiber carrier has good hydrophilicity and biocompatibility, so that more biomass can be loaded, higher microbial activity can be kept for a long time, and the sewage and wastewater purification effect is remarkably improved. The method disclosed by the invention is simple to operate and easy to popularize, and can be widely applied to the field of sewage and wastewater treatment biofilm carrier fillers.
Owner:SOUTHEAST UNIV
Phenol-containing wastewater treatment method
InactiveCN107673543AImprove biodegradabilityImprove toleranceTreatment using aerobic processesWater contaminantsPolyethylene glycolCatalytic oxidation
The present invention discloses a phenol-containing wastewater treatment method. According to the present invention, the treatment process is based on a special treatment apparatus; the special treatment apparatus comprises a catalytic oxidation pool, an oxidation stabilization pool, a post-biochemical BAF pool, a clear water pool, a dilution comprehensive tank, a pre-treatment first-stage BAF pool, a pre-treatment second-stage BAF pool and an effluent pool, wherein the dilution comprehensive tank, the pre-treatment first-stage BAF pool, the pre-treatment second-stage BAF pool and the effluentpool are sequentially connected through a front-section transmission pipeline, an ozone generator is connected to the interior of the catalytic oxidation pool through a gas pipeline, ozone catalyticparticles comprise active alumina particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol, and a carrier comprises, by weight, high-density polyethylene, a polypropylene resin, slaked lime, Dow powder active carbon, light calcium carbonate, maleic anhydride, dicumyl peroxide, gelatin, chitin and magnetic powder; and with the phenol-containing wastewater treatment method, the difficulty-degraded macromolecule organic matter is oxidized into the easily-biodegradable small molecule organic matter, such that the biodegradability of the effluent is improved.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Black Locust particle/polyvinyl formal composite filler and preparation method thereof
InactiveCN103274519AGood biocompatibilityImprove film formationSustainable biological treatmentBiological water/sewage treatmentPolymer sciencePolyvinyl alcohol
The invention relates to a Black Locust particle / polyvinyl formal composite filler and a preparation method thereof, and belongs to the environmental engineering material field. The composite filler is obtained through compounding polyvinyl formal (PVFM) foam tissues as a matrix with a disperse phase; and the disperse phase comprises Black Locust particles having particle sizes of 60-120 meshes, and the Black Locust particles are obtained through peeling natural Black Locust particle branches, boiling in an alkali, and crushing. The preparation method of the composite filler comprises the following steps: dissolving polyvinyl alcohol in water, adding a surfactant and the Black Locust particles at 40-80DEG C, uniformly stirring, adding an acid for adjusting the pH value to 1-3, adding formaldehyde or paraformaldehyde, and carrying out high speed stirring while reacting for foaming the obtained system until the volume is not expanded; and dumping the obtained system to a foam die, and carrying out heat insulation curing at 50-65DEG C for 10-24h. The composite filler provided by the invention has the advantages of high biocompatibility, superior film hanging performance, and maintenance of many excellent characteristics of the PVFM, such as low density, high specific surface area, high poriness, good elasticity, wear resistance, corrosion resistance and the like.
Owner:ZHENGZHOU UNIV
Preparation method of microbial sewage purification treatment agent
InactiveCN111115849AHigh flocculation activityImprove adsorption capacityWater contaminantsWater/sewage treatment by flocculation/precipitationBiotechnologyCarboxyl radical
The invention discloses a preparation method of a microbial sewage purification treatment agent, and belongs to the technical field of wastewater treatment. According to the invention, a culture medium containing a bacillus natto liquid is prepared from soybean milk, wherein gamma-polyglutamic acid is rich, the gamma-polyglutamic acid can be complexed with metal salt ions in water pollutants to obtain gamma-polyglutamate, the adsorbent has the advantages of biodegradability, good biocompatibility, high water-retaining property and the like, the polypeptide structure of the gamma-polyglutamic acid and carboxyl and amino groups rich in a molecular chain are extremely similar to physiological properties of microorganisms, the gamma-polyglutamic acid is extremely easy to coexist with microorganisms, a space reserved after the gamma-polyglutamic acid is biologically degraded provides a space for subsequent microorganism growth, and the quantity of active microorganisms on the adsorbent is increased, so that the biofilm culturing quantity of the adsorbent microorganisms is increased, and the application prospect is wide.
Owner:王小龙
Biological rotating disc sheet capable of improving biofilm culturing amount
InactiveCN111377539AImprove space utilizationGood decontamination effectTreatment with aerobic and anaerobic processesBiotechnologyBiofilm
The invention discloses a biological rotating disc sheet capable of improving a biofilm culturing amount. The biological rotating disc sheet comprises a disc-shaped framework of a hollow-out structureand a net-shaped disc surface arranged on the disc-shaped framework. Three-dimensional elastic filler is fully distributed on the net-shaped disc face, and the disc-shaped framework is filled with polyurethane sponge filler. According to the biological rotating disc provided by the invention, the biofilm culturing rate of the disc sheet is increased, and the defects that the biofilm culturing amount of an anoxic layer is low, and a biofilm is not easy to be implanted, easy to agglomerate, not easy to be stripped and the like are effectively improved. According to the invention, different fillers are utilized to create a proper environment for aerobic bacteria and anaerobic bacteria on the same disc sheet, so that the growth of biological membranes of an aerobic layer and an anoxic layer is facilitated, the membrane forming rate is greatly improved, and biochemical organic pollutants in water are efficiently treated.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1
Multi-component biological packing for increasing biofilm culturing quantity and preparation method thereof
InactiveCN108163968AEasy to recycleFast film formationSustainable biological treatmentBiological water/sewage treatmentActivated carbonBiofilm
The invention relates to a multi-component biological packing for increasing biofilm culturing quantity and a preparation method thereof. The multi-component biological packing is prepared from the following raw materials in parts by weight: 20-60 parts of polyamide, 30-50 parts of humus, 10-25 parts of polyvinyl alcohol, 80-150 parts of carbon nanofibers, 0.5-1 part of oxalic acid, 10-20 parts oflignin, 10-20 parts of activated carbon and 5-25 parts of diatomite. The preparation method particularly comprises the following steps: uniformly mixing all the raw material components; injecting theobtained mixture into a feed hopper of an injection molding machine; and performing extrusion molding by a packing mould to obtain the multi-component biological packing. The multi-component biological packing for increasing the biofilm culturing quantity is suitable for microbial growth, is quick in biofilm culturing speed and large in bio-film quantity.
Owner:上海凝兰新材料科技有限公司
Kitchen waste sewage treatment system
ActiveCN113651489AEasy to handleSimple processTreatment using aerobic processesWater contaminantsSludgeChloride vinyl
The invention relates to a kitchen waste sewage treatment system, which comprises a pretreatment system and a biochemical treatment system which are connected in sequence, wherein biological rotating disc equipment (BBR equipment) is adopted in the biochemical treatment system, the material of a biological rotating disc comprises a three-dimensional net structure formed by thermoforming cellosilk and latex, and thecellosilk is made of a modified PVDC polymer obtained by copolymerizing vinylidene chloride, 1, 2-dichloroethylene, glycidyl methacrylate and a cationic monomer, and an auxiliary material. According to the invention, the method is simple in technological process, high in effluent standard reaching rate, easy in sludge treatment, efficient, energy-saving, low in operation cost, small in occupied area and very suitable for treating kitchen waste sewage; the biological rotating disc in the BBR equipment forms an anaerobic and anoxic environment inside the disc and an aerobic environment outside the disc, and the anaerobic and anoxic environment inside the disc and the aerobic environment outside the disc arecombined with the anaerobic, anoxic and aerobic environment at the microscopic level of a biological membrane, so that a stronger synchronous nitrification and denitrification effect is exerted, and the operation cost and the retention time of a biochemical pool are saved.
Owner:青海洁神环境科技股份有限公司
Water treatment system
InactiveCN106082438AEfficient integrationReduce energy consumptionSemi-permeable membranesBiological treatment apparatusWater treatment systemOxygen
The invention relates to the field of water treatment, in particular to a water treatment system, which comprises an anaerobic reaction device and an aerobic reaction device, wherein the anaerobic reaction device is in fluid communication with the aerobic reaction device; the anaerobic reaction device comprises an anaerobic reaction tank body and a grid for dividing an internal space of the anaerobic reaction tank body into an isolated area and a filler area which are in fluid communication with each other; a water inlet of the anaerobic reaction device is positioned in the isolated area; a water outlet of the anaerobic reaction device is positioned in the filler area; an anaerobic reaction filler is arranged in the filler area. According to the water treatment system, systems for an A2O water treatment method can be effectively integrated, and in addition, air can float to wash the surface of a filter membrane, so that the effects of greatly reducing the energy consumption and saving an occupied area can be achieved.
Owner:上海立泉环境科技有限公司
Self-oxygenating enhanced biological rotating disc sewage treatment device
PendingCN112320926AHigh film-hanging efficiencyIncrease the amount of filmTreatment using aerobic processesSustainable biological treatmentBiofilmSludge
The invention discloses a self-oxygenating enhanced biological rotating disc sewage treatment device, and relates to the field of sewage treatment devices. The sewage treatment device comprises a sewage treatment device shell, a driving shaft and a biological rotating disc structure; the biological rotating disc structure comprises a biological rotating disc and a plurality of circles of water-carrying self-oxygenating pipes, and the water-carrying self-oxygenating pipes are arranged in a surrounding manner along the driving shaft; the biological rotating disc comprises a middle filler fixingdisc, a driving shaft fixing flange, macro-porous crude fiber biological filler and water-carrying self-oxygenating pipe fixing grooves; and a first sludge collection and return pipe and a second sludge collection and return pipe are transversely arranged on the two sides of the bottom in the sewage treatment device shell. The sewage treatment device has the advantages of high biofilm culturing efficiency, large biofilm culturing quantity and richer flora, the pollutant removal efficiency of the whole biological rotating disc process is improved to a great extent, the whole structure is beneficial to repair and maintenance, the operation is simple, the operation cost is low, and the sewage treatment device has a wide application prospect in the field of rural sewage treatment with low pollutant concentration and small water quantity.
Owner:上海复森环境科技发展有限公司
High nitrogen high concentration organic wastewater purification system
InactiveCN107758995AImprove hydrophilic abilityBiological affinityOrganic-compounds/hydrides/coordination-complexes catalystsWater contaminantsLow-density polyethyleneHigh concentration
The invention discloses a high nitrogen high concentration organic wastewater purification system. The high nitrogen high concentration organic wastewater purification system comprises a catalytic oxidation pool, an oxidation stabilizing pool, an after-biochemistry BAF pool, a clear water pool, a water collecting pool and a filter, and the catalytic oxidation pool is filled with ozone catalyzing particles in a fixed bed mode, and the ozone catalyzing particles are prepared from, by weight, activated aluminum oxide particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol; the after-biochemistry BAF pool further comprises an anaerobic pool and an aerobic pool, and a carrier is prepared from, by weight, 60-70 parts of high density polyethylene, 10-15 parts of polypropylene resin, 6-8 parts of low density polyethylene, 8-10 parts of bamboo charcoal powder, 4-6 parts of wood powder, 2-3 parts of lignin, 2-3 parts of dichloromethane, 1-2 parts of N,N-diethylguanidine, 0.5-1 part of N,N'-ethylenebis (stearamide) and 3-5 parts of maleic anhydride. The high-nitrogen high-concentration organic wastewater purification system is low in running cost, easy to operateand stable to run and achieves the purpose of efficiently degrading organic pollutants.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
A PCB type TVS diode package and a preparation process thereof
PendingCN109037186AImprove bindingAvoid circuit breaker problemsSemiconductor/solid-state device detailsSolid-state devicesEpoxyTriazine
The invention discloses a PCB type TVS diode package and a preparation process thereof, comprising a BT resin PCB board and an epoxy resin, wherein the outer surface of the BT resin PCB board is provided with a TVS tube, and the epoxy resin is arranged on the upper surface of the TVS tube. A BT resin (bismaleimide (BMI) and triazine-based resin) is use as a substrate for that PCB positive and negative sides of the package and the preparation proces of the PCB-type TVS diode, and an etching line is used as a conduction, the substrate replaces a metal frame, and then the process flow is taken asa solid crystal, a bonding line, a stamping die, a cutting, a testing, a braiding and a warehousing; BT resin has a very high adhesion to the external sealant (epoxy resin) when molding, It is much higher than the combination with the metal frame, so that the product has higher air tightness, meanwhile, the expansion coefficient is close when the metal frame is heated and expanded, and the internal stress is smaller, so as to avoid the breakage problem of the metal frame when the metal frame is welded at the client end, and the product has higher reliability and quality.
Owner:SHAOXING IN CONJUNCTION WITH THE ELECTRONICS TECH
Gas-water dual-use filling material plug flow device
ActiveCN104003506ASolve the accumulationStable flowSustainable biological treatmentBiological water/sewage treatmentSuction forceFilling materials
The invention discloses a gas-water dual-use filling material circular plug flow device, which comprises a material conveying tube for conveying a filling material, a power plant for providing a medium, a guiding and conveying member for conveying the medium, and an injection member which is used for guiding the medium in the guiding and conveying member to move in the material conveying tube to generate a pushing force or a suction force, and the guiding and conveying member is communicated with the injection member. The gas-water dual-use filling material circular plug flow device is arranged in an aeration tank and below the water surface, a feed end of the material conveying tube is arranged near a filling material stacking position, and a discharge end of the material conveying tube is arranged at a position in alignment to a principle stacking position; a support frame is arranged in the aeration tank to fix the device, the injection member guides vortex motion of the medium, so that a powerful pushing force or suction force is formed in the material conveying tube to together suck the filling material in the stacking position and sewage in the aeration tank in, the filling material is pushed backwards out by the pushing force formed in the material conveying tube, and the problem of filler stacking can be quickly solved.
Owner:ZHEJIANG LIANCHI WATER EQUIP
Preparation and application of a composite filler applied to a combined three-effect ecological floating bed
ActiveCN108017154BNo pollution in the processEasy to prepareWater contaminantsBiological water/sewage treatmentEnvironmental engineeringMicrobial Biofilms
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
Coal gas generation furnace phenol-containing wastewater treatment method
InactiveCN107673542AImprove hydrophilic abilityBiological affinityTreatment using aerobic processesWater contaminantsPolyvinyl alcoholPolyethylene glycol
The invention discloses a coal gas generation furnace phenol-containing wastewater treatment method. According to the present invention, the treatment process is based on a special treatment apparatus; the special treatment apparatus comprises a catalytic oxidation pool, an oxidation stabilization pool, a post-biochemical BAF pool, a clear water pool, a dilution comprehensive tank, a pretreatmentfirst-stage BAF pool, a pretreatment second-stage BAF pool and an effluent pool, wherein the catalytic oxidation pool, the oxidation stabilization pool, the post-biochemical BAF pool and the clear water pool are sequentially connected through a rear-section transmission pipeline, ozone catalytic particles comprise active alumina particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol, and a carrier comprises, by weight, high-density polyethylene, a polypropylene resin, slaked lime, Dow powder active carbon, light calcium carbonate, maleic anhydride, gelatin, chitin, ferroferric oxide magnetic powder and manganese-zinc ferrite; and with the coal gas generation furnace phenol-containing wastewater treatment method, the pollutant conversion speed and the pollutantconversion efficiency in the wastewater can be improved, the adsorption force can be generated, and the adsorption on the surface of the filler can be increased.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Modified suspended biological filler, preparation method thereof and sewage treatment method
ActiveCN113735260ALow densityImprove hydrophilicityWater contaminantsTreatment with aerobic and anaerobic processesBiocompatibilityMaterials science
The invention discloses a modified suspended biological filler, which is prepared from 98-99 parts by weight of high density polyethylene, 0.1-0.8 part by weight of calcium carbonate, 0.1-0.8 part by weight of talcum powder, 0.05-0.2 part by weight of ethoxylated alkylamine antistatic agent and 0.05-0.2 part by weight of magnetic powder, and is prepared by the following steps: mixing and stirring the raw materials according to a designed ratio, and carrying out injection molding and extrusion molding. According to the modified suspended biological filler disclosed by the invention, the surface of the modified filler is positively charged, the roughness is increased, the hydrophilicity and the biocompatibility are enhanced, the filler is used in an A2O process, the MBBR biofilm culturing time is short, the biofilm culturing amount is high, and the TN removal rate is remarkably improved.
Owner:TSINGHUA UNIV
Biochemical denitrification and dephosphorization treatment device
InactiveCN107758991AImprove biodegradabilityHigh feasibilityWater treatment compoundsMultistage water/sewage treatmentLow-density polyethylenePolyvinyl alcohol
The invention discloses a biochemical denitrification and dephosphorization treatment device. The device comprises a catalytic oxidation tank. The catalytic oxidation tank is filled with ozone catalytic particles in the form of a fixed bed. The ozone catalytic particles are composed of, according to parts by weight, active alumina particles, copper oxide, titanium dioxide, polyethylene glycol andpolyvinyl alcohol. 60-70 parts of high-density polyethylene, 10-15 parts of polypropylene resin, 6-8 parts of low-density polyethylene, 2-3 parts of dichloromethane, 1-2 parts of diethylhydrazine sulfate, 0.5-1 part of N,N'-ethylene bisstearamide, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of magnetic powder and 0.5-1 part pentaerythritol stearate are placed in a mixer, stirred at a high speed, slowly heated to 120 DEGC, stirred at a low speed and cooled to 40 DEG C, and then 5-10 parts of bamboo charcoal powder, 4-6 parts of wood powderand 5-8 parts of lignin are added and evenly stirred until room temperature. The biochemical denitrification and dephosphorization treatment device achieves COD removal, decolorization, deodorizationand degradation of toxic pollutants for wastewater in a process of catalytic oxidation treatment of coal chemical wastewater.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Sputtering device
ActiveCN109563615AGuaranteed uniformityRealize space savingVacuum evaporation coatingSputtering coatingVacuum chamberMaterials science
A sputtering device according to the present invention is a device which uses a sputtering method to form a film on a to-be-processed substrate, the sputtering device being provided with: a vacuum chamber; a target provided on the surface of a cathode that is provided in the vacuum chamber; a substrate holding part which is provided in the vacuum chamber to face the target and on which a to-be-processed substrate is installed; and a swinging part that allows the substrate holding part to swing relative to the target. A swinging region of the to-be-processed substrate in the substrate holding part is set smaller than an erosion region of the target.
Owner:ULVAC INC
Petrochemical wastewater discharge treatment device
InactiveCN107759001AImprove hydrophilic abilityImprove performanceTreatment using aerobic processesWater treatment compoundsLow-density polyethyleneCatalytic oxidation
The invention discloses a petrochemical waste water discharge treatment device. The device comprises an ozone generator, wherein the ozone generator is connected to the inside of a catalytic oxidationtank through a gas pipeline, a water inlet hole, a water outlet hole and a return hole are formed in a clean water tank, the water inlet hole of the clean water tank is connected to a post-biochemical BAF tank by a transmission pipeline, the water outlet hole of the clean water tank is connected to one end of a backwash pump, and a carrier is composed of, according to parts by weight, high-density polyethylene, polypropylene resin, low-density polyethylene, bamboo charcoal powder, wood powder, lignin, methylene chloride, diethyl sulfonium sulfate, N,N'-ethylene bisstearamide and maleic anhydride; the carrier includes a hollow short pipe, a first concentric ring and a second concentric ring, wherein the first concentric ring and the second concentric ring are sequentially and concentrically disposed on the outside of the hollow short pipe. The device has an ammonia nitrogen removal rate over 92% and a COD removal rate over 78% and can better treat low-concentration wastewater.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
Combined filter material biological aerated filter system
PendingCN112079438ASolve the blockageSolve the troublesome problem of inspection and maintenanceWater treatment parameter controlWater treatment compoundsAeration systemFilter system
The invention relates to the field of sewage treatment, in particular to a combined filter material biological aerated filter system, which comprises a filter body, an aeration system and a carbon source storage tank, and is characterized in that the filter body internally comprises a non-aeration area and an aeration area, and a retaining wall is arranged between the aeration area and the non-aeration area; a plurality of layers of filter material frames are fixed in the aeration area and the non-aeration area, and filter materials are filled in the filter material frames to form a filler layer; one side, close to the non-aeration area, of the filter tank body is communicated with a water inlet pipe, and one side, close to the aeration area, of the filter tank body is communicated with awater outlet pipe; the aeration system comprises air supply equipment and an aeration pipe arranged in the aeration area, and the air supply equipment is communicated with the aeration pipe through anair guide pipe; and a carbon source storage tank is communicated with the water inlet pipe through a carbon source feeding pipe. The system can improve the water quality treatment efficiency and effect, reduce the operation management difficulty, reduce the operation cost, simplify the structure in the pool and improve the maintenance efficiency, and has lower requirements on water inlet SS.
Owner:杭州余杭净水有限公司 +1
High-tower humic acid type compound fertilizer and preparation method thereof
PendingCN113845386APlay a protective effectImprove the slow-release synergistic effectAnimal corpse fertilisersAlkali orthophosphate fertiliserSoil sciencePhosphate
The invention discloses a high-tower humic acid type compound fertilizer. The high-tower humic acid type compound fertilizer comprises a basic fertilizer and a coating liquid coating the basic fertilizer, wherein the basic fertilizer comprises humic acid, improved pond sludge, ammonium phosphorus nitrate, monoammonium phosphate, potassium dihydrogen phosphate, potassium chloride and zinc chloride, and the coating liquid comprises a microbial liquid, alginic acid and polyethylene glycol. According to the invention, the basic fertilizer is coated with the coating liquid, so that direct contact between the basic fertilizer and soil and crop root systems can be avoided, water is gradually dissolved in the coating, the fertilizer particles in the coating are gradually released, diffused to a soil solution and continuously absorbed and utilized by crops, the leaching loss of basic fertilizer nutrients, the volatilization loss of ammonia, the fixation of phosphorus and the like are reduced, and the fertilizer utilization rate is improved. The invention also provides a preparation method of the high-tower humic acid type compound fertilizer.
Owner:拉多美科技集团股份有限公司
Integrated denitrification and decarbonization aeration biological filtration pool
InactiveCN107673472AImprove hydrophilic abilityImprove performanceTreatment with aerobic and anaerobic processesSustainable biological treatmentFiltrationOxygen
The present invention discloses an integrated denitrification and decarbonization aeration biological filtration pool, wherein an anaerobic carrier and an aerobic carrier respectively comprise a hollow short pipe, a first concentric ring and a second concentric ring, the first concentric ring and the second concentric ring are sequentially and concentrically arranged at the outer side of the hollow short pipe, an aerobic pool is vertically provided with an aeration cylinder embedded into the center positions of an upper sieve plate and a lower sieve plate, an aeration head is positioned at thebottom portion of the aeration cylinder, an oxygen pipe for oxygen transmission is positioned in the aeration cylinder and is connected to the aeration head, an aerobic biological filler is positioned between the side wall of the aerobic pool and the aeration cylinder, and a carrier comprises, by weight, high-density polyethylene, slaked lime, Dow powder active carbon, light calcium carbonate, maleic anhydride, dicumyl peroxide, gelatin, chitin, ferroferric oxide magnetic powder and manganese-zinc ferrite. According to the present invention, with the integrated denitrification and decarbonization aeration biological filtration pool, the high BOD5 / TN ratio can be maintained, the smooth denitrification nitrogen removal performing can be ensured, and the TN removal rate can reach 80.6%.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
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