152results about How to "Hang film fast" patented technology

The invention discloses an electrochemical biological combined denitrification reactor, which comprises a tank body, an electrode plate, a particle electrode, an aerating apparatus and a constant current transformer. Both ends of the tank body are respectively provided with a water inlet and a water outlet. The electrode plate comprises an anode arranged on the center part of the tank body and a cathode which surrounds the anode to be arranged at the position close to the tank wall; the anode and the cathode are respectively connected with an anode and a cathode of the constant current transformer; the particle electrode is filled between the anode and the cathode; and the aerating apparatus comprises a fine bubble aerator arranged on the bottom of the tank body and an air pump connected with the fine bubble aerator. The device of the invention has compact and simple structure, small occupied area, high current utilization rate and rapid biofilm formation of microbe, can simultaneously remove various pollutants, such as organic matter, ammonia nitrogen and the like, has high denitrification efficiency and low energy consumption, is easy to regulate and control and is a multiple three-dimensional electrode biomembrane sewage treatment device integrating biology with an electric microfield into whole body.

The present invention relates to deep treating process of refinery waste water after initial treatment. Refinery waste water is deeply treated biologically with microbial flora comprising Pseudomonas sp., Zoogloea sp., Plesiomonas sp., Bacillus, Bacillus megaterium and Rhodopseudomonas globiformis in a biological aeration filtering pond and / or a bioreaction pond while controlling the intake water pH value in 6-9. The deep treating process has simple path, high safety, low power consumption, low running cost and other advantages, and the water output can reach the reuse standard stably including CODcr not more than 60 mg / l, oil not more than 2 mg / l, NH3-N not more than 2 mg / l and SS not more than 10 mg / l.

The invention discloses an excellent and efficient carbon fiber biofilm carrier modification method and aims to improve water treatment performance of carbon fibers used as biofilm carrier materials. A basic raw material is the carbon fibers; the modification method mainly comprises steps as follows: firstly, acid oxidation treatment is performed on the carbon fibers, so that surfaces of the carbon fibers are ensured to have sufficient functional groups for preparation for iron carrying; then an organic iron solution is used as a modifying agent, surface modification is performed on the carbon fibers with a liquid phase impregnation method, and an organic-iron-modified carbon fiber biofilm carrier material with the surface containing the iron element is prepared. The preparation method is simple and easy to implement, prepared organic-iron-modified carbon fibers can keep original excellent performance of the carbon fibers, the surface roughness and the hydrophilicity are significantly improved, the film colonization cycle is short, the microbial activity is improved, time required for water treatment is short, removal rates of COD, ammonia nitrogen and total phosphorus are obviously increased, the outgoing water quality is good in stability, and the reuse rate is higher.

The invention discloses a low-consumption nitrification and denitrification coal chemical wastewater advanced treatment device, comprising a catalytic oxidation pond, an oxidation stabilization pond and a rear biochemical BAF pond, wherein the catalytic oxidation pond is filled with ozone-catalytic particles in a static bed form, and a comprehensive dilution tank is provided with a charging hole and a stirrer; the ozone-catalytic particles are prepared from 88.7-91.3 parts of activated aluminium oxide particles, 1.2-1.5 parts of copper oxide, 4-7 parts of polyethylene glycol, 1.5-2 parts of polyvinyl alcohol, 0.8-1 part of titanium dioxide, 0.3-0.5 part of hydroxyl propyl cellulose and 0.2-0.4 part of manganese dioxide; the lower part and the upper part of an aerobic tank in the rear biochemical BAF pond are respectively provided with a lower sieve plate and an upper sieve plate, the lower sieve plate, the upper sieve plate and the side wall of the aerobic tank form an aerobic cavity, and a plurality of aerobic activated sludge particles and a plurality of second masson pines as a filler are arranged in the aerobic cavity. The low-consumption nitrification and denitrification coal chemical wastewater advanced treatment device oxidizes a macromolecular organic matter hard to degrade into a micromolecular organic matter easy to biochemically treat, and the biochemical property of effluent is further improved.

The invention relates to a rapid film forming method of an efficient denitrifying microbial agent. According to the rapid film forming method, a biological filler is added into an aerobic nitrification reactor, and active sludge is inoculated into the aerobic nitrification reactor; artificial simulated wastewater is added every 1-2 days, the temperature, the dissolved oxygen and the pH value of the reactor are controlled, and high-concentration microorganisms enter the aerobic nitrification reactor from the top portion through an external circulation pipeline and form a solid-liquid flow from top to bottom in the biological filler area; and gas bubbles formed through micro-pore aeration form a gas-stage flow from bottom to top in the biological filler area, the three materials are completely mixed in the biological filler area to form a fluidized state, and the denitrifying microorganisms are attached on the surface of the biological filler or grow to gradually form the microbial aggregate. With the method of the present invention, the defects of long time consumption, poor adhesion, complex operation, low biomass and poor impact load resistance of the film forming of the denitrifying microorganisms can be completely solved, the attachment of the nitrifying bacteria can be improved, the film forming is fast, and the resistance to the external environment change and the impact load resistance can be enhanced.

The invention provides a moveable sewage treating vehicle which comprises a moving device, wherein a first aerobic pond, a secondary aerobic pond and a settling pond which are communicated with each other in turn are arranged on the moving device; a water inlet is formed at the upper end of the first aerobic pond; and a water outlet is formed at the lower end of the settling pond. An efficient flowing and separating biological technology is adopted; the sewage treating vehicle has the characteristics of high film-hanging speed, simpleniss in operation, stable running, excellent treating effect, low running cost, and the like; the sewage dispersed in remote rural areas can be moveably treated; and the construction cost of pipe network can be saved.

The invention relates to a highly effective hollow cancellate spherical suspended filler, which comprises hollow grid spherical plastic (1) and flexible rough weaving fibers (2). The hollow grid spherical plastic (1) is hollow cancellate spherical plastic. The character of the flexible rough weaving fibers (2) is flexible and rough fiber. The flexible rough weaving fibers (2) are enlaced on the hollow grid spherical plastic (1). The filler has simple structure, does not waste most area of the fibers because the fibers are filled in the hollow grid spherical plastic, can enlarge organic membrane amount and the contact area with the sewage at the same time that the cost of the whole suspended filler is not changed, has quick suspended filler membrane forming speed and a great deal of organic membrane, improves the removing efficiency of the system, and has very good removing effect in particular to NH3<-N>.

The invention relates to a method for treating a biological filler from a waste hollow fiber ultrafiltration membrane or a microfiltration membrane as a matrix, wherein a raw material of the biological filler adopts the waste hollow fiber ultrafiltration membrane or the microfiltration membrane, according to the source and the pollution situation of the raw material of the biological filler, different physical or chemical cleaning methods are adopted, and the surface roughness, the initial microbial amount or the hydrophilic property of the raw material of the biological filler can be controlled by a surface hydrophilization modification method or nano material in-situ polymerization modification method, so that the biological filler has a faster film-hanging speed compared with a conventional the biological filler; according to the source and the pollution situation of the raw material of the biological filler, a path of recycling of the waste hollow fiber membrane is realized, and hazard of waste polymers to the environment can be greatly reduced. Through use of the waste hollow fiber membrane for the preparation of the biological filler, the preparation cost of the filler can begreatly reduced, and the preparation cost of the filler is mainly due to the cost of the raw material of the biological filler and energy consumption during the preparation process.

The invention discloses a suspension filler for water treatment. The suspension filler comprises a supporting frame and a carbon filer bundle having two ends fixed on the supporting frame, the carbon fiber bundle comprises an inner-layer carbon fiber bundle and an outer-layer carbon fiber bundle, the supporting frame comprises a first annular frame, a second annular frame and a third annular, and the first, second and third annular frames are arranged in a mutual intersection manner. The inner-layer carbon fiber bundle substantially flutters in the supporting frame, the outer-layer carbon fiber bundle slightly flutters, and microbes and dirty substances in wastewater can be adhered and adsorbed to the suspension filler; the suspension filler for water treatment adopting the first, second and third annular frames to form the supporting frame can fully utilize the power of water flow and airflow to realize buoyancy motion, so the suspension filler for water treatment combines excellent material performances comprising high adsorption performance, high biological endophilicity and the like of the carbon fiber material with the optimized designs of the structure of the supporting frame, the inner-layer carbon fiber bundle and the outer-layer carbon fiber bundle, thereby the comprehensive performances of the obtained suspension filler are very good.

The invention relates to a charcoal circulation type co-coagulation flotation tank water purification system and method. Mechanical flocculation, dissolved air flotation and an inclined plate settling basin are organically combined so as to form copolymerization dissolved air flotation, and mechanical flocculation and dissolved air flotation are organically combined through a copolymerization dissolved air flotation process, so that the stability of bubble floc is improved. Ozone oxidation and biological activated carbon are organically combined, so that the decomposition ability of powder biological activated carbon on organic matters is greatly improved. Air flotation and ozone oxidation are organically combined, so that an ozone oxidation effect is greatly improved. Mechanical flocculation, copolymerization air flotation, the biological activated carbon and inclined plate settling are organically combined, so that under the conditions of effectively controlling the rotate speed, reducing the hydraulic loss and the like, an aquatic organic matter is removed, and the stable bubble floc is formed. The system provided by the invention is flexible in process and operation manner, can be beneficial for effectively reducing the operation cost, has the advantages of high adaptability to water quality change, high efficiency, convenience in operation and the like, and has a wide application prospect.

The invention discloses an advanced treatment method for coal chemical wastewater, relates to an advanced treatment method for industrial wastewater, and solves the problems of low BOD / COD value of the coal chemical wastewater, long carrier film forming, slow startup process for a reactor and long waiting time before stabilization existing in the conventional advanced treatment method for an aerobic biological film. The method comprises the following steps of: (1) adding a biological filler and active sludge to the reactor; (2) adding the coal chemical wastewater to be treated, methanol production wastewater and KH2PO4 in turn; (3) introducing air into the reactor; and (4) carrying out static settling after aeration so as to finish the advanced treatment on the coal chemical wastewater. The advanced treatment method for coal chemical wastewater lowers the effluent COD, achieves a carrier film biomass of 0.207 to 0.368 gram of TSS / g of filler, enhances BOD / COD ratio, shortens the film forming process in the reactor and realizes stable running of the reactor within a short period of time. The advanced treatment method for coal chemical wastewater is characterized by simple operation and low cost.

The invention discloses a biomembrane denitrification method for nitrogen containing sewage. A biomembrane denitrification reactor has the structure described as follows: a transversal plate (a), a vertical plate (b), a vertical plate (c) and a transversal plate (d) are arranged in a reactor, wherein the transversal plate (a) divides the reactor into an upper part and a lower part, wherein the lower part is a hydrolytic acidification zone and the upper part is an A / O zone. The A / O zone is divided into three parts by the vertical plate (b) and the vertical plate (c), wherein the three parts successively are an aerobic zone (O), a transition zone and an anaerobic zone (A). The lower end of the vertical plate (b) is sealedly connected to the transversal plate (a). A water passing gap is formed between the upper end and the top of the reactor. The upper end of the vertical plate (c) is sealedly connected to the top of the reactor. A water passing gap is formed between the lower end of the vertical plate (c) and the transversal plate (a). The left end of the transversal plate (d) is sealed connected to the bottom of the vertical plate (c), while the right end is connected to a wall of the reactor. The transition zone is filled with sponge iron deoxidant granules. In sewage treatment, sewage is fed from the bottom of the reactor, and successively passes through the hydrolytic acidification zone, the aerobic zone, the transition zone and the anaerobic zone, and is discharged from the upper part. In the reactor, biomembranes in the zones are cultured independently, so that the biomembranes having special functions can be cultured better. The reactor has high biomembrane forming speed and has good denitrification effect.

The invention relates to high-efficiency hydrophilic biological stuffing and device applied to sewage treatment. The biological stuffing is prepared from stuffing, wherein modified activated carbon is cured on the surface of the stuffing, a trace metal catalyst is dipped into the modified activated carbon, and the stuffing is elastic stuffing; the device is used for fixing the biological stuffing. The biological stuffing can be used for treating sewage and repairing a water body through a biological membrane method, and has the advantages of being strong in hydrophilia, large in specific surface area, quick in biofilm formation speed, high in biofilm formation amount, not prone to falling down, capable of improving microbial activity, convenient to install and the like.

The invention relates to a method for treating leachate of a garbage transfer station, which solves the technical problems of low treatment efficiency and the like in the prior art. The method for treating the leachate of the garbage transfer station comprises the following steps: S1, the leachate generated in the garbage transfer station sequentially passes through a grating machine and an regulating tank, wherein the grating machine separates high-concentration suspended matters and pollutants with larger particle sizes in the water body; S2, the leachate treated by the regulating tank enters a biochemical system through a lifting pump, and the biochemical system carries out biochemical reaction treatment on the leachate by adopting a biological contact oxidation method; S3, the leachateprocessed by the biochemical system automatically flows into a sedimentation tank, the sedimentation tank precipitates the leachate, and the precipitated sludge is discharged out of the sedimentationtank; S4, the leachate of the sedimentation tank flows into a coagulation medicine adding tank and a coagulation sedimentation tank in sequence, the water after coagulation sedimentation flows into an active carbon tank, and the percolate is directly discharged after being adsorbed and filtered by the active carbon tank. The method has the advantages that the cost is low, and the emission standard can be reached after treatment.

The invention discloses a bamboo fibrous filler-based integrated sewage treatment device. The bamboo fibrous filler-based integrated sewage treatment device comprises an enclosed housing, wherein the housing is internally divided into an equipment mounting area, a sewage treatment area and a water outlet area in sequence by a first vertical partition and a second vertical partition; the equipment mounting area is used for mounting an aerator; the sewage treatment area is internally divided into a water distribution area, a filler area and an aeration area which are communicated in sequence from top to bottom by a first horizontal grid plate and a second horizontal grid plate; a water distribution device which is externally connected with a water inlet pipe is arranged in the water distribution area; the filler area is filled with a bamboo fibrous filler; an aeration device which is externally connected with the aerator is laid in the aeration area; the water outlet area is communicated with the aeration area and is provided with a water outlet pipe. The bamboo fibrous filler-based integrated sewage treatment device and an application method thereof are low in cost, low in energy consumption, difficult to block, small in floor space, simple in structure and convenient to operate and manage.

The invention discloses water treatment filler capable of removing ammonia nitrogen and total nitrogen in wastewater synchronously. The filler is of a cylindrical embedding-sleeving structure as a whole and is divided into an outer sleeving layer and an inner embedding layer. The outer sleeving layer is formed by foaming and blending outer sleeving layer materials, and the outer sleeving layer materials comprise low-density polyethylene (LDPE), basalt fiber and nano calcium carbonate powder. The inner embedding layer is blended by inner embedding layer materials, and the inner embedding layermaterials comprise polybuthylenesuccinate (PBS) and modified bamboo powder. By the adoption of the embedding-sleeving structure, the outer sleeving layer is provided with a pore structure which can allow microorganisms to gather together and a trichoid structure which extends outwards, under the aerobiotic and high-hydraulic-shearing condition, a surface turbulence environment is formed, and the inner embedding layer is in an alternating oxygen-enriched-microaerobic-anaerobic environment. The water treatment filler can synchronously remove ammonia nitrogen and total nitrogen, the running costof the filler is low, the volume load of unit nitrogen of wastewater treatment facilities can be increased in situ, and the selection contradiction of technological parameters of synchronously removing nitrogen and phosphorous in the running process of an actual technology can be effectively avoided.

The invention relates to a biomembrane carrier material, and specifically relates to a modified alveolar stone doped bioactive polylactic acid-polypropylene composite fiber carrier material and a preparation method thereof. The conventional pure inorganic and organic carriers are mixed to prepare the composite material; the fiber silk made of polymer materials such as polypropylene, polylactic acid, and the like has a better compatibility with microbes and good hydrophilicity. Moreover, the doped modified alveolar stone has a uniform and efficient adsorption performance. The added colloid graphite powder improves the mechanical performance of fiber silk and improves the adsorption performance of carrier on microbes. The fiber bundle is soaked in composite silica gel, after the treatment, the fiber bundle can adhere to a carbon source in fibers, and the growth of microbes is accelerated. The provided composite fiber carrier material has the advantages of light weight, large activated surface area, high bioactivity, and suitability for microbial growth and propagation and is capable of forming a film in a short time. The filling material made of the composite fiber carrier material has the advantages of good fluidity, difficulty in clustering, and aging resistant property, and is capable of improving the water purification efficiency.

A composite elastic filament material used as the biofiller in biomembrane method for treating sewage is prepared from the mother polypropylene particles containing the superfine tourmalinite particles and polypropylene particles through preparing filament, napping, and embossing.

The invention relates to a disposal device of leachates of a garbage transfer station. The device solves the technical problems of low disposal efficiency and the like in the prior art. The disposal device for the leachates of the garbage transfer station comprises an insulating grid machine and an adjusting pool which are sequentially connected, wherein the insulating grid machine separates high-concentration suspended matter and pollutants with larger particle size in water. The device also comprises a biochemical system, a sedimentation pool for precipitating the leachates, a coagulation dosing pool for adding a coagulant into the leachates, a coagulation precipitation unit for carrying out coagulation precipitation on the leachates, and an active carbon pool for adsorbing and filteringthe leachates after coagulation precipitation, wherein the biochemical system is used for carrying out biochemical reaction disposal on the leachates by means of a biological contact oxidation method. The disposal device has the advantages that the cost is low, and the emission standard can be satisfied after disposal.

This invention relates to a suspended microbe carrier that is suitable for microbes. One unit of the suspended microbe carrier is composed of an outer ring, a middle ring, an inner ring and a supporting rod. The supporting rod connects the outer, middle and inner rings. Multiple units are uniformly placed and circumferentially supported by the supporting rods to constitute a porous structure. The polymeric material of the inner ring is spray-coated with anaerobic microbe dry powder and inorganic powder. The polymeric material of the middle ring is spray-coated with anaerobic and aerobic microbe dry powder and inorganic powder. The polymeric material of the inner ring is spray-coated with aerobic microbe dry powder and inorganic powder. The materials of the carrier are suitable for the microbes in wastewater. Besides, the material spatial distribution is suitable for the living habits of different microbes. Therefore, the carrier has a high spatial utility and a good wastewater treatment effect.

The invention discloses an efficient denitrification biological carrier filler and applications of the efficient denitrification biological carrier filler in sewage treatment. The efficient denitrification biological carrier filler comprises a shell and hollow bamboo balls, and specially comprises a hollow plastic spherical shell and a plurality of built-in hollow bamboo ball knitted from phyllostachys pubescens strips, wherein the surface of the phyllostachys pubescens contains a large amount of hydroxyl groups and carboxyl free radicals, and has good hydrophilicity and good bio-affinity so as to rapidly form the active sludge film and provide the firm active sludge film, and when the carbon source is insufficient, the hollow bamboo balls can be decomposed into denitrifying bacteria so as to provide the carbon source. According to the present invention, the efficient denitrification biological carrier filler has the characteristics of rapid film forming and firm formed film of the bamboo filler, the characteristic of high mechanical strength of the plastic filler, further has characteristics of greatly-increased filler surface area, unit volume biomass increasing, greatly-increased active sludge concentration in the reactor, nitrification effect improving, denitrification effect improving, and substantially-increased denitrogenation efficiency of the high concentration nitrogen-containing wastewater.

The invention discloses a method for deep denitriding of waste water in a low carbon nitrogen ratio through denitrification. The method comprises the following steps: (1) performing denitriding by utilizing corn cores as an additional carbon source and a biomembrane carrier in a first section reactor A; (2) performing further denitriding by utilizing bamboo charcoal as a fixed bed to load microorganisms in a second section reactor B; (3) setting water inlet points respectively on the two sections of the reactors for raw water, and the water inlet points can be shifted in proportion according to different qualities of the raw water. The method has the following advantages that (1) an organic matter can be slowly released, secondary pollution cannot be generated, and the COD exceeding of effluent cannot be caused; (2) the method has a better removing effect on nitrate nitrogen in the waste water in the low carbon nitrogen ratio and besides can remove ammonia nitrogen in the waste water; (3) secondary pollution cannot be generated, and the standing time of the nitrate nitrogen can be prolonged, so that the quality of the effluent is improved; (4) the denitriding effect of the waste water can be improved, and the removing rate of the nitrate nitrogen is more than 80%, so that the effluent is steady; (5) the technology is simple, easy to operate, low in cost, small in floor space, short in standing time and free from power consumption, and the method has a good application prospect.

The invention belongs to the technical field of water quality improvement and particularly provides a method for removing nitrate nitrogen in water, an electrode biofilm culturing method, an electrode and a device. The method for removing nitrate nitrogen in water comprises the following steps that 1, magnetic powder is added into sludge for domestication, so that microbes attach to the surface of the magnetic powder to form activated magnetic powder sludge; 2, the activated magnetic powder sludge is added into a magnetic electrode reactor provided with a magnetized cathode; 3, air is led to the activated magnetic powder sludge in the magnetic electrode reactor for reaction, and the cathode of the magnetic electrode reactor forms the electrode biofilm under the attraction of current impact and the magnetic electrode. By improving the adsorption capacity between the electrode and the microbes, the microbe biofilm culturing rate and biofilm culturing amount on the surface of the electrode are increased, and thus the nitrate removal rate can be improved.

The invention discloses a material for denitrification with an autotrophic and heterotrophic synergistic biological denitrification method, and a preparation method and an application thereof, and relates to the technical field of microbiological water treatment. The invention aims to solve problems in a conventional autotrophic or heterotrophic denitrification technology. The material for denitrification with the autotrophic and heterotrophic synergistic biological denitrification method provided by the invention comprises a sulfur-containing substance, agricultural and forestry waste organicmatters and a mineral adhesive; a modified material is prepared through a special heat treatment process; and the prepared material makes up the defects of autotrophic denitrification and heterotrophic denitrification, can guarantee long-term stable operation of a denitrification system and has high denitrification efficiency.

The invention relates to a brassica juncea pickling waste water treatment device and method. The brassica juncea pickling waste water treatment device comprises a grille (1), a sewage collecting tank (2), a sewage pump (3), an iron-carbon microelectrolysis tank (4), a bio-contact oxidizing tank (5) and a sedimentation tank (6), wherein waste water generated in a brassica juncea pickling process flows into the sewage collecting tank (2) via the grille (1), the sewage pump (3) is arranged in the sewage collecting tank (2), the sewage is pumped by the sewage pump (3) into the iron-carbon microelectrolysis tank (4), the waste water flows by the iron-carbon microelectrolysis tank (4) in a zigzag stream manner to be treated and then flows into the bio-contact oxidizing tank (5), after being treated by the bio-contact oxidizing tank (5), the waste water enters the sedimentation tank (6), and supernatant in the sedimentation tank (6) reaches the standard and is discharged.

The invention belongs to the field of biological filler, and discloses honeycomb-shaped biological filler suitable for microbiological treatment of wastewater as well as a preparation method and application thereof. The honeycomb-shaped biological filler is prepared from the following preparation raw materials in percentage by mass: 7.1 to 33 percent of a mineral material, 7 to 28 percent of a microporous material, 2 to 10 percent of a pore forming agent and 30 to 60 percent of an inorganic gel material. The pore forming agent can be removed during a preparation process through roasting, coarse pores can be formed, a microporous structure of filler is formed by micro pores brought by the microporous material per se and fine pores formed through accumulation of inorganic particulate matters, an appropriate habitat for microorganism reproduction and growth is formed by enriched hierarchial pore channel structures, sufficient specific surface area and pore walls for supplying trace mineral elements to microorganisms, biofilm forming of the microorganisms on the filler is promoted, conditions are created for matter and energy exchange between the microorganisms and wastewater, and therunning efficiency of the biological filler is increased.

A short-distance nitrification-denitrification biomembrane denitrogenation method for nitrogen containing sewage is disclosed. A biomembrane reactor having the following structure is adopted, wherein a cross plate a, a vertical plate b, a vertical plate c and a cross plate d are disposed in the reactor, the cross plate a separates the reactor into an upper part and a lower part, the lower part is a hydrolysis acidifying zone and the upper part is an A / O zone; the A / O zone is divided into three parts which are an aerobic zone O, a transition zone and an anaerobic zone A in order through the vertical plate b and the vertical plate c, the lower end of the vertical plate b is hermetically connected to the cross plate a, a water opening is between the upper end of the vertical plate b and the top of the reactor, the upper end of the vertical plate c is hermetically connected to the top of the reactor, a water opening is between the lower end of the vertical plate c and the cross plate a, the left end of the cross plate d is hermetically connected to the bottom of the vertical plate c, the right end of the cross plate d is hermetically connected to the wall of the reactor, and the transition zone is filled with palladium-copper loaded activated carbon catalyst particles. During sewage treatment, water is fed from the bottom of the reactor, passes through the hydrolysis acidifying zone, the aerobic zone, the transition zone and the anaerobic zone in order and discharged from the upper part. Biomembranes in each zone of the reactor are cultured separately, biomembranes with specific performance can be formed, film hanging is rapid and denitrogenation effects are good.

The invention relates to the field of sewage treatment, and provides a suspended filler ball for treating sewage by a biofilm method and a preparation method thereof. The method comprises the following steps: cutting loofah sponge into small sections, firstly immersing the loofah sponge into a nano calcium silicate dispersion solution for deposition and adsorption, then immersing the loofah spongeinto a sodium alginate solution for cross-linking film formation, and finally loading the loofah sponge into hollow filler balls, thereby preparing the suspended filler balls for biofilm process sewage treatment. Compared with a traditional method, the surfaces of the loofah sponge fiber yarns are loaded with the calcium silicate nanoparticles, so that the specific surface area of the loofah sponge is increased, the sodium alginate and Ca<2+> of the nanoparticles are crosslinked to form a film, and the calcium silicate nanoparticles can be effectively prevented from being agglomerated or falling off. When the filler ball prepared by the invention is used for sewage treatment, a good sewage purification effect can be kept after long-time use.

The invention belongs to the technical field of environmental protection and particularly relates to a recycling device of leachates of a garbage transfer station. The device solves the technical problems of low disposal efficiency and the like in the prior art. The recycling device of the leachates of the garbage transfer station comprises a grid machine, an adjusting tank, a UASB reactor, a facultative oxygen tank, an aerobic unit, a sedimentation tank and a biological active carbon system which are sequentially arranged. The device has the advantages of being low in cost, environmentally friendly and capable of further utilizing resources.

The invention belongs to the technical field of wastewater treatment and discloses a method and a device for improving wastewater treatment biological film forming efficiency, aiming to solve the problems of low film forming efficiency, high cost and low applicability in the prior art. The device comprises a magnetic stirrer, a three-neck flask is arranged on the magnetic stirrer, a bacterial solution is fed into an ultrafiltration cross-flow filter device from a lower sample inlet of the ultrafiltration cross-flow filter device through a bacterial solution feeding port and a first peristaltic pump pipeline, and a sample outlet of the ultrafiltration cross-flow filter device is connected with an excretion feeding head of a reactor through a second peristaltic pump. The method and the device have the advantages that different quick film forming means are selected according to the content of homoserine lipid materials under same conditions, high film forming efficiency, low cost and high applicability are realized, effective film forming is realized to the greatest extent, integral film forming time is shortened, and the risk of adopting a packing process is minimized.