83results about How to "Increase the amount of film" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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%.