97results about How to "Good effect of hanging film" patented technology

The invention discloses a suspending film method of filler in biological contact oxidation pond, which comprises the following steps: fistedly domesticating activated sludge; adding nutrient solution into domestic activated sludge and armed waste water miscible liquids; mixing evenly; injecting into oxidation pond; aerating; cycle culturing; making microbe adhere on carrier; stewing and settling span; discharging all of sludge water miscible liquids; proceeding waste water culture from low density to high density continually till forming stable shockproof biological film.

The invention provides a retiform biological filling device and relates to a water root position cleaning treatment biological filling device. The retiform biological filling device comprises a filling grid (1), a combination filling unit (2), a rope (3), a float ball (4), a sleeve (5) and a dead lever (6); the combination filling unit (2) is fixedly connected with the grid crunode of the filling grid (1), the upper end of the filling grid (1) is connected with the float ball (4) by the rope (3), the two ends of the filling grid (1) is fixedly connected with the sleeve (5) by fixed boundary lines, when in use, the dead lever (6) is inserted in the sleeve (5), and fixation to the retiform biological filling is realized. The retiform biological filling of the invention has the advantages of simple structure, high specific surface area, convenient processing and transportation, not jamming, not caking, long service life, simple installation, convenient management and maintenance, strong ability of anti impulsion of water flow, and the like, which can be used in root position cleaning treatment of natural water such as riverway, lake and reservoir, and artificial water.

The invention provides a wastewater treatment filling material and a preparation method thereof. The wastewater treatment filling material comprises the following component raw materials by weight percent: 20-70% of iron powder, 2-15% of copper powder, 3-10% of bamboo charcoal powder, 2-15% of kaolin, 2-15% of magnesite powder and 10%-30% of zeolite powder. The preparation method comprises the following steps: respectively smashing and carrying out ball-milling on the component raw materials; then mixing and granulating to form a granular mixture; and finally, preparing a granular filling material by high-temperature sintering or cold pressing. Compared with the prior art, the wastewater treatment filling material prepared by the method provided by the invention has the characteristics that reaction rate is high, wastewater treatment time only needs from several minutes to tens of minutes; treatment amount is large; coagulation effect is good, COD (chemical oxygen demand) removal rateis high, and removal of chroma is better; service life is long, and cost is low; the range of acting on organic pollutants is wide; and operation and management are convenient, and passivation, channeling and wastes are not generated.

The invention particularly relates to a forsterite bio-filter material for sewage treatment and a preparation method of the forsterite bio-filter material. The technical scheme is as follows: the preparation method comprises the following step: uniformly mixing 45-55wt% of forsterite raw ore fine powder, 20-30wt% of talc fine powder, 15-25wt% of magnesium oxide fine powder and 2-6wt% of dravite micropowder as raw materials with additional 2-6wt% of starch to prepare a mixed material; then, putting the mixed material and polystyrene balls in a pelletizer in a volume ratio of the polystyrene balls and the mixed material of (1.5-2.0) to 1; then, adding 10-20wt% of water to prepare particles with the grain size being 5-13mm; and then, roasting the prepared particles for 16-24 hours at 110-150 DEG C, and sintering for 2-4 hours at 1300-1500 DEG C to prepare the forsterite bio-filter material for sewage treatment. The forsterite bio-filter material for sewage treatment is simple in process and wide in source of raw materials and the prepared forsterite bio-filter material for sewage treatment has the characteristics of good flora biofilm culturing effect, high flora survival rate, good decoloring effect and high strength.

The invention relates to a preparation method of modified polyurethane sponge filler for emergency of an MBBR (Moving Bed Biofilm Reactor) process. The preparation method is characterized by comprising the following specific steps: soaking a sponge filler into an acidic potassium permanganate mixed solution; taking out the sponge filler, soaking the taken sponge filler into a hydrochloric acid solution until a brown layer on the surface is washed away, taking out the sponge filler, and performing draining; putting the sponge filler into PBS for soaking, taking out the sponge filler after the solution is neutral, and naturally airing the sponge filler; soaking the air-dried sponge filler into a modifier, taking out the sponge filler, and performing draining; soaking the sponge filler into agelatin protein solution containing diatomite and powdered activated carbon; and taking out the sponge filler, performing washing, and performing natural airing to obtain the modified sponge filler used for sewage treatment. The method has the beneficial effects that through the synergistic mechanism of the adsorption effects of activated carbon and the diatomite attached to the surface of the sponge filler and the oxygenolysis effect of microorganisms, the biofilm culturing speed can be increased, meanwhile, the degradation performance of the sponge filler on pollutants in sewage is effectively improved, and therefore the sewage treatment effect is improved.

The invention discloses a sewage processing system. The sewage processing system comprises an anaerobic pond, an aerobic tank, a flocculation basin, a filtering tank, and a disinfecting tank which arecommunicated through pipelines successively; a slag water separator is arranged at a water inlet of the anaerobic pond; an anaerobic biological rotating disc is arranged in the anaerobic pond; an aerobic biological disc is arranged in the aerobic tank; an adhesion foundation bed of the anaerobic biological rotating disc and an adhesion foundation bed of the aerobic biological rotating disc comprise a plurality of fan-shaped discs which are arrangedin annular arrays and are connected successively; a triangular grid structure is adopted by the fan-shaped discs; and the adjacent triangular holecross sections of the triangular grid structures are provided with projections. In applications, sewage is delivered through the slag water separator, the anaerobic pond, the aerobic tank, the flocculation basin, the filtering tank, and the disinfecting tank successively for processing; the processing technology is reasonable and effective; the triangular grid structures are adopted by the anaerobic biological rotating disc and the aerobic biological rotating disc, so that the specific surface area is larger, higher sewage treatment efficiency and better effect are achieved, and the dischargesewage is capable of reaching standards.

A pleasure-boat type movable water quality improving apparatus is composed of a pleasure-boat, an air supplying unit in said boat, and a living things carrier under said boat. Said carrier consists of the cylindrical fillers composed of mass transfer bodies, the pile loop bodies as planting carrier and fixing rings, and two fixing sleeve pipes arranged at both ends of fillers.

The invention discloses a method for promoting a biofilm culturing effect by modifying the surface of polyurethane. According to the method, polyurethane is used as a template material in a layer-by-layer self-assembly process; iron and manganese ions cover the surface of the material through pretreatment of an iron-manganese salt solution, so that the surface of the material has certain surface positive charges; and plasma grafting modification is carried out to generate a large number of active free radicals on the surface of the material, covalent reaction with sodium alginate is carried out, finally, a layer-by-layer self-assembly process is realized under the driving of electrostatic force between a polyanion compound sodium alginate and a polycation compound chitosan, and therefore,a stable layered composite structure is formed on the surface of the material. By chemically modifying the surface of polyurethane, the obtained plasma modified iron and manganese ion-sodium alginate-chitosan layer-by-layer self-assembly material is good in biocompatibility, high in chemical stability, safe, non-toxic, simple to operate, low in cost and easy to obtain. By using the method, the microorganism immobilization efficiency can be effectively improved.

The invention discloses an efficient pulse anaerobic filter which comprises a filter body.Combined packing and an overflow weir which is arranged above the combined packing in a spaced mode are arranged in the filter body, a bell-jar siphoning type pulse generator is arranged on the upper portion of the filter body, an exhaust box of the bell-jar siphoning type pulse generator is located on the overflow weir, a drainage lower opening of the exhaust box is communicated with a water-distribution main pipe which is longitudinally arranged in the filter body, and the water-distribution main pipe penetrates through a combined packing area to be communicated with a mud discharge pipe located at the bottom area of the filter body and multiple perforated water-distribution branch pipes located below the mud discharge pipe.The efficient pulse anaerobic filter is simple in structure, low in construction cost and convenient to maintain.

The invention discloses polyether type polyurethane-graphene oxide foam as well as a preparation method and an application thereof, which belong to the technical field of biological fillers. The polyether type polyurethane foam is used as a carrier of a fixed carrier graphene oxide, and the polyether type polyurethane foam is shaken and subjected to ultraviolet curing in a graphene oxide dispersion liquid to obtain the polyether type polyurethane-graphene oxide foam. The method is simple to operate, low in cost, green and environment-friendly, and provides a new way for immobilization of graphene. The obtained polyether type polyurethane-graphene oxide foam retains the excellent properties of polyether type polyurethane foam and graphene oxide, has good hydrophilicity, water binding capacity and surface charge distribution, has a good biofilm culturing effect, and has a good effect when being used as a biological filler for sewage treatment.

The invention relates to the technical field of modified starch and application thereof and particularly relates to modified starch for dried-fruit film forming, a preparation method therefor and an application of the modified starch. A preparation process of the modified starch comprises the steps of regulating the pH of native starch slurry to be alkaline, then, carrying out heating, then, adding 2-4 parts of oxidant, carrying out an oxidation reaction, then, adding 3-5 parts of vinyl acetate as an esterification reagent, and controlling esterification time to be 2 to 4 hours. The prepared modified starch is low and stable in viscosity, transparent in paste, low in retrogradation, high in film forming property and good in film forming performance and is applicable to dried-fruit film forming; and dried-fruit film forming slurry prepared by using the modified starch disclosed by the invention can form a layer of uniform, dense and tightly-bonded starch film on the surface of each dried fruit, dried fruits can be effectively prevented from becoming mildewed, meanwhile, the effects of increasing quantity, increasing weight and improving brittleness are achieved, and the economic value of the dried fruits is increased.

The invention discloses a microbial aquatic plant with a composite bacterial agent, a preparation method and an ecological restoration system for a microbial aquatic plant with a composite bacterial agent, including a microbial aquatic plant and a microbial film, the microbial film is attached to the bionic aquatic plant leaves, and the microbial aquatic plant It includes bionic water grass leaves and grass stalks, the grass stems are covered with bionic water grass leaves, and a microbial film is attached to the bionic water grass leaves. The microbial waterweed of the composite bacterial agent of the present invention can be placed in the river course to be treated when the microbial waterweed is placed in the river course that needs to be treated, which saves a long time for film formation and can directly carry out efficient river course treatment work. The ecological restoration system of the present invention has the following beneficial effects: the gauze has the function of buffering and filtering, when the ecological restoration system is placed in the water channel, the water flows through the ecological restoration system to filter out some impurities, and this layer of gauze can prevent the water flow It acts as a buffer to prevent excessive water flow from affecting the biofilm on the compound microbial microbial aquatic plants.

The invention provides a biochar based spiral magnetic bio-membrane reactor. The biochar based spiral magnetic bio-membrane reactor is composed of a spiral U-shaped groove track and a magnetic biochar filler filled into the spiral U-shaped groove track. The spiral U-shaped groove track is ascending, the angle formed by the plane where the spiral U-shaped groove track is located and a horizontal plane is 8-15 degrees, the periphery of the projection of the spiral U-shaped groove track on the horizontal plane is round, the diameter of the circle is 4-6 times of the width of the spiral U-shaped groove track, the specific value of the length to the width of the spiral U-shaped groove track is greater than 20, and the depth is 8-12 cm. The magnetic biochar filler is prepared by the steps of ferrous ion absorption with biochar, standing and oxidation, strong alkali reaction and the like. When the biochar based spiral magnetic bio-membrane reactor works, sewage spirally flows down from the upper portion, and pollutants in the sewage are degraded under the effect of a biological film on the surface of the filler. In the whole treatment process, aeration is not needed, and almost no kinetic energy consumption is produced.

The invention relates to an integrated biological oxidation and ammonia removal device and an integrated biological oxidation and ammonia removal method. The device includes a first biological oxidation reaction chamber for carrying out an ammonia gas biological oxidation reaction, and a filler support layer disposed in the middle of the first biological oxidation reaction chamber. A microbial biofilm culturing packing is disposed on the filler support layer. The microbial biofilm culturing packing is a permeable and breathable molding module made of a high polymer material. The shape and size of the module are adapted to the central accommodation space of the first biological oxidation reaction chamber. And microbial activated sludge is contained in the microbial biofilm culturing packing. The device has the advantages of long service life up to 15 years or more and high ammonia treatment efficiency up to 80% or more.

The invention provides multifunctional ecological restoration equipment, and belongs to the field of ecological restoration and treatment. The ecological restoration equipment comprises floating assemblies, functional modules and connecting assemblies, wherein the functional modules are detachably connected with the floating assemblies and/or the connecting assemblies; the floating assemblies comprise floating pieces, and the floating pieces are detachably connected through the connecting assemblies to form the floating assemblies. The functional modules can be selected from one or more of a planting assembly, a habitat assembly, a purification assembly, a landscape assembly and a power assembly. The functional assemblies can comprise planting units, buoyancy adjusting units and purifyingunits. The ecological restoration equipment is designed in a nature-imitated mode, installation and construction are convenient, manual intervention is reduced according to the concept of system treatment, and ecological restoration of the water body is achieved. The invention further relates to an ecological restoration method using the multifunctional ecological restoration equipment.