102results about How to "Improve the efficiency of sewage treatment" patented technology

The present invention relates to water treating technology, and is especially one kind of rotary cage type biological suspended stuffing sewage treating method and apparatus. The apparatus includes central shaft, rotary cage, inner and outer vanes, suspended stuffing, bearing and bearing cover plate. The central shaft is connected to the rotary cage to form rotating pair, the bearing is located with the bearing cover plate and screws, the suspended stuffing is filled into the rotary cage, and the inner and outer vanes are screwed to peripheral wall of the rotary cage. The inflowing sewage drives the outer vanes to rotate the rotary cage and mixes with the suspended stuffing and central aerating airflow, the inner vanes of the rotary cage form homogeneous gas, liquid and solid fluid to make sewage well contact with biological membrane on the stuffing and aerating airflow for biodegradation and airflow oxidation decomposition of organic pollutant and purification of sewage.

The invention relates to a multilayer microalgae growth and reproduction device, and belongs to the technical field of microalgae reproduction. The multilayer microalgae growth and reproduction device comprises a shell (4), wherein division plates (5), a charging device and a discharging device are arranged in the shell; liquid level limiting devices (3), light sources (8), stirring devices and microalgae growth and reproduction beds (7) are arranged on the upper portion of each layer of the division plates. According to the multilayer microalgae growth and reproduction device, the floor space is small, microalgae growth and reproduction is not affected by the season and the weather, the illumination intensity can be controlled, the exposed area is large, the algae production efficiency is high, and microalgae industrial production can be achieved.

The invention provides a sewage treatment method by using a flowing microorganism bed and a filtering membrane. The method comprises the following steps: the step 1), discharging the sewage into an anaerobic pool, wherein the anaerobic pool has GPB active carriers and active bioproteins, and the GPB active carriers are 25-72% of the volume of the water body in the anaerobic pool, feeding activated sludge and the active bioproteins into the anaerobic pool, and enabling the GPB active carriers to be flowed in the anaerobic pool by a stirring motor; the step 2), discharging the sewage treated by the anaerobic pool into a sedimentation basin I; the step 3), discharging the sewage passing through the sedimentation basin I into an aerobic pool, wherein the aerobic pool has ACD active carriers and the active bioproteins; feeding the activated sludge and the active bioproteins into the aerobic pool, performing the aeration to the aerobic pool so as to enable the ACD active carriers to be flowed; the step 4) feeding the sewage passing through the aerobic pool into a sedimentation basin II, and discharging; and the step 5), filtering the dyeing sewage discharged from the sedimentation basin II by a porous ceramic membrane.

The invention discloses a water treatment device combining multiple physical methods. The water treatment device is characterized by comprising a water treatment unit (1), wherein the water treatment unit (1) comprises an ultrasonic, ultraviolet and ozone combined reactor (2) and a plasma generator (3), and a water outlet of the ultrasonic, ultraviolet and ozone combined reactor (2) is connected with a water inlet of a Y-shaped reactor (6) through a liquid pump (4) and a liquid flowmeter (5); the top end of the ultrasonic, ultraviolet and ozone combined reactor (2) is communicated with the plasma generator (3) through a second gas circulating pipeline (42). According to the water treatment device combining the multiple physical methods, sewage is treated by comprehensively utilizing methods of ultrasonic, ultraviolet, ozone, plasma, TiO2 catalysis and the like; besides, the problems of large occupied area, high energy consumption, long single treatment time, low utilization rate of active matters in plasma and the like of a wastewater treatment device in the prior art are further solved.

The invention relates to a novel medical sewage treatment device. The novel medical sewage treatment device comprises a bracket, a tank body and a tank cover, wherein a dosing port is formed in the tank cover, a tank body water inlet pipe and a tank body water outlet pipe are separately arranged at the top of the left side of the tank body and the bottom of the right side of the tank body, a first motor is arranged on the bottom wall of the tank body, a plurality of stirring rods are arranged at the top end of an output shaft of the first motor, a filtering chamber is arranged at the left side of the tank body, a filtering chamber water inlet is formed in the top of the left side of the filtering chamber, a filtering chamber water outlet is formed in the bottom of the right side of the filtering chamber, the filtering chamber water outlet communicates with the tank body water inlet pipe, a filter screen is arranged at the filtering chamber water outlet, a second motor is arranged on a top wall, a rotating shaft is connected with the bottom end of an output shaft of the second motor, a plurality of top crushing blades are arranged at the bottom end of the rotating shaft, a precipitating cylinder is further arranged below the filtering chamber, and a cleanout door is further arranged on the bottom wall of the precipitating cylinder. By adopting the structure, the novel medical sewage treatment device has the advantages that fixed foreign bodies in sewage can be effectively filtered, and meanwhile, the efficiency of sewage treatment is also increased.

The invention discloses a composite component for promoting sewage flocculation, which comprises the following raw materials in parts by weight: montmorillonite, 20-30 parts; calcite, 15-25 parts; attapulgite, 30-40 parts; wollastonite , 10-20 parts; borax, 10-20 parts; heavy calcium carbonate, 5-15 parts; talc powder, 5-15 parts; the mixture of mica powder and coal gangue, 6-8 parts; The ratio of parts by weight of gangue is 5-7:1. The composite component of the invention can well play the role of flocculation, effectively remove organic matter and heavy metal ions in the water body, reduce sewage turbidity, and improve sewage treatment efficiency. The preparation method provided by the invention is simple and practical, easy for large-scale preparation, and suitable for popularization.

The invention relates to a system for decentralized sewage and sludge biochemical treatment, which comprises a biochemical filtering bed for biochemical treatment for sewage and a sedimentation regulating tank connected with a sewage source, water distribution tubes are arranged on the surface of the biochemical filtering bed and connected with a water pump in the sedimentation regulating tank via a main water distribution tube, a sludge filtering bed is arranged near the sedimentation regulating tank which is provided with a sludge pump, the sludge pump is connected with the sludge bed via tubes, wherein grading of filler in the basement of biochemical filtering bed is reasonable, the filtering bed is fine in water permeability and microbiological survival environment, high in efficiency of sewage processing, and can avoid blocking and crusting, thereby the filtering bed is beneficial to long-term usage, as the drying stabilizing treatment on the sludge in the sedimentation regulating tank is achieved by the sludge filtering bed, pollution to others water source can be avoided, further as the sludge accumulating to a certain amount in the sludge filtering bed, one-time cleaning can be achieved and resourced utilization can be realized, thereby reducing the processing cost.

The invention discloses a microbial carrier for wrapping a biological coating on a ceramic hollow rod and a preparation method. The ceramic hollow rod is prepared by firing a mixed material containing modified iron tailings, regenerated activated carbon, expanded perlite and gypsum, and a plurality of hollow and porous structures are formed on the ceramic hollow rod; a biological coating is filled in pores of the ceramic hollow rod, and a biological coating is wrapped on the surface of the ceramic hollow rod; and microbial bacteria with a purification effect are attached to or embedded in the pores and the biological coating of the ceramic hollow rod. When the ceramic hollow rod is put into sewage, the bacteria contact with water, resuscitate by using nutrients on the ceramic rod quickly and start to grow by using pollutants in water so as to achieve effects of removing the pollutants from the water and purifying the water. The microbial carrier disclosed by the invention solves the problem that an existing biological belt is short of rigidity and is difficult to store; meanwhile, the amount of microbes attached to a unit area is further improved, and the area for arrangement is reduced; and moreover, the problems that the microbial carrier is low in use efficiency, generates sewage expansion and the like are solved.

The invention relates to a movable type sewage treatment device. The movable type sewage treatment device comprises a movable type platform which is capable of floating on water, wherein the platform is integrally provided with a water quality exchange and detection module and a water treatment device module; the water treatment device module comprises an algae removing module, an aeration module and an ozone purification module; a submerged pump is arranged at the bottom part of the platform; the water quality exchange and detection module comprises a water quality exchange tank and a detection device; a pump body pipeline of the submerged pump stretches into water, and impellers of a pump body is driven to rotate through a motor, so that underlying water is pumped into the platform; a sewage pumping pipeline of the submerged pump is connected with the water quality exchange tank after being connected with the water treatment device module; the water quality exchange tank is internally provided with a water quality detection device and flow splitting and water draining pipelines; the water quality exchange tank is arranged in a main body of the movable type platform, and the flow splitting and water draining pipelines are distributed surrounding the water quality exchange tank, so that water in the water quality exchange tank is drained into the water; the movable type platform is provided with a solar panel for supplying power. The movable type sewage treatment device disclosed by the invention can move freely in inland rivers and lakes and can treat sewage along the way.

The invention discloses a deep treatment method for sewage of breeding plants. The deep treatment method is mainly characterized by comprising the steps of stirring a flocculating agent of a special formula with sewage to react, treating by virtue of a multi-media filter, carrying out metabolism treatment by virtue of a compound microbial agent in an aeration tank, carrying out high voltage pulse electrocoagulation, carrying out elution and filtration by virtue of ion exchange resin, stirring the treated sewage with a special compound sewage treating agent, standing, filtering, and finally carrying out reverse osmosis concentration by virtue of a high-pressure pump, so as to obtain treated water meeting the emission standard. The deep treatment method has the beneficial effects that the sewage treatment efficiency is high, and the discharged treated water obtained by virtue of the sewage treatment method of an optimized process can meet the national standard; and meanwhile, the process is simple and feasible and strong in operability, has no environmental pollution, can meet the industrial requirements and has relatively good application prospect.

The invention discloses a real-time control sequencing batch membrane bioreactor. The real-time control sequencing batch membrane bioreactor comprises a reaction bin, wherein the reaction bin comprises an inner bin and an outer bin; a microfiltration membrane module is arranged on the side wall of the inner side of the inner bin; a mesoporous aeration pipe is embedded into the lower part of the microfiltration membrane module; a water outlet I in the reaction bin is connected with the microfiltration membrane module by a connecting pipe; a stirrer is arranged in the inner bin; an aeration sand table is arranged below the stirrer and is connected with a gas flowmeter II; a gas flowmeter I is connected with the mesoporous aeration pipe; an air compressor is connected with the gas flowmeter I and the gas flowmeter II; the end where an ORP (Oxidation-Reduction Potential) electrode is located, the end where a DO (Dissolved Oxygen) electrode is located and the end where a pH electrode is located are all immersed into the inner bin. The real-time control sequencing batch membrane bioreactor disclosed by the invention can circularly operate and detect the changes of ORP, DO and pH along with time in the process of treating wastewater by the device; certain reaction stage at which a reaction device is located is judged according to the change; in addition, aerobic-anoxic condition transformation can be realized by adjusting the aeration rate of the reaction device.

The invention belongs to the technical field of sewage treatment, and particularly relates to a municipal sewage oxidation treatment method. A municipal sewage oxidation treatment device utilized in the method includes a main body, a pushing plate, a telescopic air cylinder, a guide pipe, a gas feeding disc, a stirring and mixing unit, a holding chamber and a sediment chamber. The pushing plate isat the upper end of the main body and is driven by the telescopic air cylinder. The inner wall of the guide pipe is spiral. The gas feeding disc is inlaid in the inner wall of the main body and is connected to an external ozone feeding pipe. The stirring and mixing unit is used for introducing ozone fed through the gas feeding disc and a sedimentation agent into sewage and fully mixing and stirring the mixture. The holding chamber is below the stirring and mixing unit to separate the sewage into supernatant liquid and sedimented particles. The sediment chamber is used for receiving particlessedimented in the holding chamber. Municipal sewage is treated in a manner with low energy consumption, is fully purified and disinfected by the device, and is allowed to be easily sedimented, and thesewage treatment efficiency is increased.

The invention provides a ferro-chrome composite oxide, a preparation method thereof and application thereof. The ferro-chrome composite oxide has a general formula of Fe3-xCrxO4, and X-ray powder obtained through Cu-K alpha-ray measurement is diffracted at angles 2theta of 31 degrees, 36 degrees and 63 degrees and displays characteristic peak. When the ferro-chrome composite oxide serving as a catalyst performs sewage treatment, a pH value of the sewage is not required to be regulated, and the ferro-chrome composite oxide has the advantage of high sewage treatment efficiency; the ferro-chrome composite oxide is a solid catalyst and can be recycled, so that the sewage treatment cost can be reduced; and moreover, the preparation method for the ferro-chrome composite oxide is easy to operate.

The invention discloses an environment-friendly energy-saving blowdown apparatus. The environment-friendly energy-saving blowdown apparatus comprises a bottom plate; the top of the bottom plate is fixedly connected with a box body; one side of the box body is fixedly connected with a support frame; the top of the support frame is connected with a gear through a support column via rotating connection; the front surface of the gear is fixedly connected with a first belt pulley; the top of the support frame on one side of the gear is fixedly connected with a motor; the external surface of a motoroutput shaft is sleeved with a second belt pulley; the external surface of the second belt pulley and the external surface of the first belt pulley are connected through a belt via transmission connection; the top of the internal wall of the box body is slidingly connected with a moving rod; the bottom end of the moving rod is fixedly connected with a hairbrush; one side of the moving rod is fixedly connected with a straight tooth plate. The environment-friendly energy-saving blowdown apparatus can be used for complete treatment of sewage; stains on separating leaking plates can be washed using the hairbrush, no artificial washing of stains is needed, and sewage treatment efficiency is increased.

The invention discloses a heterogeneous Fenton reactor which is characterized in that in the reactor, a sewage tank is used for accommodating sewage to be treated; a disc is rotatably arranged in the sewage tank, at least one third of the disc is immersed in the sewage, a fixing support comprises n fixing rods which are arranged in a radial mode, each fixing rod comprises a first end located in the radial center and a second end opposite to the first end, the fan-shaped cage bodies are fixed between every two adjacent fixing rods, each fan-shaped cage body is of a net-shaped structure, the net-shaped structure is filled with an iron catalyst, and the mesh diameter of the net-shaped structure is smaller than the particle size of the iron catalyst; and a rotating shaft is erected on the sewage tank, the rotating shaft is connected with the radiation center, and the rotating shaft rotates to drive the disc to rotate. The heterogeneous Fenton reactor is large in effective contact area, high in liquid fluidity, free of catalyst loss, free of secondary pollution and low in cost.

The invention discloses a sewage biological reaction tank and an updated volume expansion method thereof. The sewage biological reaction tank comprises an activated sludge aerobic zone and a pretreatment zone, wherein a first anoxic / anaerobic tank and a second anoxic / anaerobic tank are arranged in the pretreatment zone, and the first anoxic / anaerobic tank is communicated with the second anoxic / anaerobic tank through a through hole in the bottom of a first partitioning wall to form an anoxic / anaerobic treatment zone; an MBBR (Moving Bed Biofilm Reactor) treatment tank is respectively arranged at each of two sides of the anoxic / anaerobic treatment zone, the second anoxic / anaerobic tank is communicated with the activated sludge aerobic zone through a through hole in the bottom of a corresponding second partitioning wall, and internal reflowing pipes are arranged on the second partitioning wall corresponding to the two MBBR treatment tanks. The invention further provides an updated volume expansion method. On the premise of keeping the volume of the original biological reaction tank unchangeable, a mud-water mixed solution in a CAST / CASS (Cyclic Activated Sludge System) main reaction region which does not reach a sufficient nitration rate originally needs to be lifted by an internal reflowing flow submersible sewage pump to enter the two added MBBR treatment tanks, thus the sewage treatment efficiency is increased.

The invention discloses an efficient domestic sewage treatment device. The efficient domestic sewage treatment device comprises a base plate, wherein a separation and disinfection cavity and a filtering cavity are formed in the upper end of the base plate; a water inlet pipe is arranged at the upper end of the separation and disinfection cavity; an outlet of the water inlet pipe is formed in a garbage box; the garbage box is fixedly arranged in a rotating body; a first motor provides power for the rotating body and is fixedly arranged on the outer side of the separation and disinfection cavity; a sewage draining exit is formed in the left side bottom of the separation and disinfection cavity; a first water pipe is arranged on the right side of the separation and disinfection cavity; the other end of the first water pipe is arranged on a water inlet pipe of a water pump; a second water pipe is arranged on a water outlet of the water pump and is arranged at a water inlet pipe of a rotating joint; a third rotating shaft is arranged at a water outlet of the rotating joint; a water jet plate is arranged at the lower end of the third rotating shaft; a sand filtering net group is arrangedbelow the water jet plate. The efficient domestic sewage treatment device disclosed by the invention has the advantages of simple structure, solid-liquid separation, good treatment effect and high treatment efficiency.

The invention discloses an intelligent sewage purification apparatus. The apparatus comprises a water collecting pool, wherein a water inlet of the water collecting pool is provided with a mechanical grid, a water outlet of the water collecting pool is connected with a water inlet of a sedimentation pool, the sedimentation pool is connected with an anoxic pool, the anoxic pool is connected with a MBR pool, the bottom of the MBR pool is provided with an aerator, oxygen is continuously introduced into the MBR pool through the aerator, a water inlet of the MBR pool is provided with a solenoid valve, the solenoid valve is connected with a solenoid valve controller, a MBR membrane assembly is arranged in the MBR pool, the opening and closing of the solenoid valve is controlled by the solenoid valve controller, and thereby the opening and closing of the water inlet of the MBR pool is controlled. According to the apparatus, two-way vibration adjusting cylinders are arranged between upper and lower position-limiting sliding seats, the two-way vibration adjusting cylinders drive the upper and lower position-limiting sliding seats to continuously approach and move away by movements, and thereby a fiber membrane is continuously folded and stretched, through large-scale folding and stretching vibration, a large amount of filtered impurities accumulated on the surface of the fiber membrane is removed by vibration, and the frequency of disassembling and cleaning of the fiber membrane is reduced.

The invention relates to a combined device for oily sewage treatment and belongs to the field of sewage treatment of oil fields. In order to solve the problem that the existing sewage treatment device is low in utilization ratio and sewage cannot be recycled, the invention provides a combined device capable of recycling. The combined device comprises a grating, an adjusting oil separator, an advection oil separator, a floatation device and an active carbon adsorption filter which are sequentially connected by virtue of a pipeline. The adjusting oil separator and the advection oil separator are externally connected with an oil collecting pond, respectively, the flotation device is externally connected with a dosing device, and a deslagging outlet is externally connected with a sludge drying pond. The combined device can be used for recycling sewage, so that no novel impurities in the treatment process are generated, the sewage production volume is reduced, and meanwhile, the device is simple and low in cost.

The invention discloses a solar energy constructed wetland system. The system comprises a constructed wetland pond, a water inlet pipeline, an aerating device, a water outlet unit, immobilized microbe plates and a solar panel, wherein the constructed wetland pond comprises five layers from top to bottom, namely, a sand soil layer, a sand and rock layer, an immobilized microbe layer, an artificial mixed substrate layer and a gravel layer in sequence; the water inlet pipeline consisting of a water inlet pipe and a water distribution branch pipe is arranged on the gravel layer; the immobilized microbe plates are mounted on the immobilized microbe layer; the aerating device is mounted on the lower sides of the immobilized microbe plates; a steel mesh is arranged between the immobilized microbe layer and the sand and rock layer; the water outlet unit consists of a water outlet hole, a water collecting tank and a water collecting tank drainage pipe; the constructed wetland pond is constructed through adopting a steel-concrete structure; a thermal insulation layer is arranged at the inner part of the pool body of the constructed wetland pond. The system provided by the invention has the advantage that through combining a microbic method and the constructed wetland organically, the constructed wetland sewage treatment efficiency is improved effectively.

The invention discloses a three-phase separator comprising a shell, drop weirs, drop baffles, a water outlet pipe and a sludge return pipe; the shell is of a sharp-bottom barrel structure with the upper end open and the lower end closed, at least one drop weir is fixed to the inner side wall of the opening portion of the shell at intervals, and at least one drop baffle arranged in an inclined state is fixed to the inner side wall of the shell; the drop baffles are located under the drop weirs, sewage entering the shell through the drop weirs falls to the surfaces of the drop baffles, then is reversely folded by a set angle and flows into the bottom of the inner side of the shell, and the water outlet pipe and the sludge return pipe are fixed to the shell; a water inlet of the water outlet pipe is located below a position, behind the drop weirs, of the drop baffles; and the water inlet of the water outlet pipe is not higher than the height of water inside the shell, and asludge inlet of the sludge return pipe is located at the bottom tip of the shell. According to the three-phase separator, the problems of three-phase separation and sludge loss in an efficient denitrification process are solved, the problem of mutual interference of sludge in an anaerobic section, an anoxic section and an aerobic section of a biochemical pool is avoided, and the sewage treatment efficiency is improved.

The invention provides a flow guide disc, a disc tube type membrane element and a processing technology of the flow guide disc and the disc tube type membrane element. The flow guide disc comprises aflow guide disc parent body; a central hole is formed in the center of the flow guide disc parent body; sealing grooves are formed in two flow guide surfaces of the flow guide disc parent body, are coaxial with the central hole, are positioned in the periphery of the central hole, and are used for embedding sealing rings; a plurality of through holes are formed in the bottoms of the sealing grooves, and an injection molding opening is formed in an opening of at least one through hole. According to the above structure, the sealing rings are embedded into the sealing grooves, thermoplastic elastic materials can be injected into the through holes through the injection molding openings, and after the thermoplastic elastic materials are cooled, the two sealing rings embedded into the sealing grooves are connected into an integrated piece through the thermoplastic sealing materials, so that, in the using process of the flow guide disc, the situation that the sealing ring falls off or runs isavoided. The sealing effect of the sealing rings is effectively guaranteed, the service life of disc tube type reverse osmosis membrane is prolonged, and the sewage treatment efficiency is improved.

The invention relates to the technical field of sewage treatment and particularly relates to a solar photo-catalytic sewage degradation system. The system comprises a base plate, at least one photo-catalytic film layer arranged on the upper surface of the base plate, and a conveying pipeline for conveying sewage, wherein the conveying pipeline is provided with a water distributor spray nozzle for spraying the sewage on the photo-catalytic film layer. By arranging the photo-catalytic film layer on the base plate, a photo-catalytic degradation reactor is formed to absorb solar energy to generate micro-current so that organic macromolecular substances in the sewage can be degraded in a photo-catalytic manner, and thus the aim of sewage treatment is realized; the system disclosed by the invention is free of energy consumption, high in sewage treatment efficiency and low in emission of BOD and COD.

The utility model relates to a pulse type fluidized bed sewage treatment device which comprises an anaerobic reactor, an anoxic fluidized bed system and an aerobic fluidized bed system which are sequentially connected in series;the anoxic fluidized bed system comprises a first fluidized bed reactor and a second fluidized bed reactor; a first upper isobaric liquid chamber, a first lower isobaric liquid chamber, a second upper isobaric liquid chamber and a second lower isobaric liquid chamber are respectively arranged at the upper ends and the lower ends of the first fluidized bed reactor and the second fluidized bed reactor; a first motor pump and a second motor pump which are opposite in output direction are arranged on two pipelines connected between the top end of the first upper isobaric liquid chamber and the top end of the second upper isobaric liquid chamber respectively, and the bottom end of the first lower isobaric liquid chamber is communicated with the bottom end of the second lower isobaric liquid chamber through a first return pipe. The structure of the aerobic fluidized bed system is similar to that of the anoxic fluidized bed system. The pulsating liquid speed and the flow speed of liquid in the fluidized bed are changed in a reciprocating mode, the liquid-solid phase relative speed and transmission strength are effectively increased, and then the sewage treatment efficiency is improved.

The invention discloses high-efficiency and low-energy-consumption sewage treatment equipment. The high-efficiency and low-energy-consumption sewage treatment equipment comprises an inlet, a mixing chamber, a reaction tank and an outlet which are communicated in sequence. The mixing chamber is inclined by a certain angle, and the included angle formed between the horizontal edge and the vertical edge of the mixing chamber is 20-30 degrees. A plurality of baffle plates arranged in a staggered mode are arranged inside the mixing chamber to form a bent channel. A reaction layer is arranged inside the reaction tank. A lens layer is arranged at the lower portion of the reaction tank. The height of the lens layer is one tenth that of the reaction tank. Reflection layers are arranged on the outer surface of a tank cover and the outer surfaces of four tank walls of the reaction tank. A black light absorbing layer is arranged on the inner surface of the tank bottom. The lens layer is located above the tank bottom. The high-efficiency and low-energy-consumption sewage treatment equipment is simple and reasonable in structure, and the reaction tank absorbs solar light by means of the special structure, so that the liquid inside the reaction tank achieves circulative convection, the sewage processing efficiency of the high-efficiency and low-energy-consumption sewage treatment equipment is improved, and energy consumption of the high-efficiency and low-energy-consumption sewage treatment equipment is lowered.

The invention discloses an ecologicalization system based on an EBR process and a sewage treatment method based on surface water III emission, and the effluent quality can stably reach the III-class water quality standard of Environmental Quality Standard for Surface Water (GB3838-2002) according to the ecologicalization system based on the EBR process and the sewage treatment method based on surface water III emission. The system and the method are suitable for sewage treatment projects with high standard discharge requirements, the ecologicalization system based on the EBR process comprisesa pretreatment unit, an EBR biochemical treatment unit and a post-treatment unit, and a plant system used for forming up-and-down flow guide of sewage, a root system bionic filler and an aeration device are arranged in the EBR biochemical treatment unit. Therefore, the EBR biochemical treatment unit is used for improving the sewage treatment efficiency, the contact efficiency of organic pollutantsand microorganisms and the utilization rate of dissolved oxygen are improved, and further, the effluent quality can stably reach the III-class water quality standard of Environmental Quality Standardfor Surface Water (GB3838-2002).

The invention provides a magnetic separation device facilitating separation of sundries in sewage. The magnetic separation device mainly comprises a separating cavity, a power supply device and a control device, wherein the separating cavity comprises a reaction frame body, a rotating shaft, a fixed plate, iron mandrels, separators, a mixer and a collecting tank; annular slides are formed on the fixed plate; the four iron mandrels are arranged in the centers of the four annular slides respectively; the separators are in sliding connection with the annular slides through movable sleeves; each separator comprises a guide rod, an air blowing device and a fixed rod, and the guide rod is arranged on the corresponding movable sleeve in a penetrating manner; the mixer is located below the separators, and electric telescopic rods are arranged at the left end and the right end of the mixer; the collecting tank is of an inverted trapezoidal structure and located below the mixer, a boss is arranged in the horizontal middle of the collecting tank, a mud scraping device is arranged in the boss in a penetrating manner, and a collecting box is arranged below the collecting tank. The magnetic separation device is reasonable in structure and good in flocculation effect, floccular pollutants and magnetic seeds are effectively treated and recovered, and the treatment cost is reduced.

The present invention relates to water treating technology, and is especially one kind of rotary cage type biological suspended stuffing sewage treating method and apparatus. The apparatus includes central shaft, rotary cage, inner and outer vanes, suspended stuffing, bearing and bearing cover plate. The central shaft is connected to the rotary cage to form rotating pair, the bearing is located with the bearing cover plate and screws, the suspended stuffing is filled into the rotary cage, and the inner and outer vanes are screwed to peripheral wall of the rotary cage. The inflowing sewage drives the outer vanes to rotate the rotary cage and mixes with the suspended stuffing and central aerating airflow, the inner vanes of the rotary cage form homogeneous gas, liquid and solid fluid to make sewage well contact with biological membrane on the stuffing and aerating airflow for biodegradation and airflow oxidation decomposition of organic pollutant and purification of sewage.

The invention discloses super-efficient dissolved air sewage treatment equipment. The equipment includes an air floatation tank, two vertical plates are symmetrically, vertically and fixedly connectedto the upper end of the air floatation tank, the two vertical plates are symmetrically penetrated by sliding rods and are connected to the horizontal direction in a sliding mode, semicircular platesare fixedly connected to opposite ends of the two sliding rods, toothed plates are fixedly connected to the corresponding ends of the two semicircular plates, two toothed plates are symmetrically arranged relative to the sliding rods, one toothed plate is connected to an incomplete gear in a meshed mode, the incomplete gear is connected to a No.1 variable frequency motor through a flat key, and afixed cylinder is fixedly connected to the lower end of the toothed plate located on the lower side. The sewage treatment equipment has the advantages that: the No.1 variable frequency motor drives arotating cylinder and other assemblies to reciprocate in the horizontal direction through the incomplete gear and the two toothed plates, and a No.2 variable frequency motor drives the rotating cylinder to rotate circumferentially through a gear set, so that nano bubbles form a spiral shape, the adsorption effect with impurities in sewage is improved in the rotating environment, and the sewage treatment efficiency is high.

The invention discloses a device and method for treating high-salinity sewage. The device comprises a regulating tank, a vertical three-phase fluidized bed, a biological aerated filter tank and a middle water tank, wherein the vertical three-phase fluidized bed comprises a reaction cylinder, a guide cylinder, a first aeration mechanism and a water discharge mechanism, and the first aeration mechanism comprises a first aeration fan, a plurality of aeration discs and a first aeration pipe. The device is characterized in that the sewage is treated through the vertical three-phase fluidized bed and the biological aerated filter tank, and salt-tolerant strains matched with the salinity in a reaction cavity and the biological aerated filter tank are cultured respectively to promote biochemical reaction. The device has the advantages that the salt-tolerant strains which are matched with the salinity in the vertical three-phase fluidized bed and the biological aerated filter tank are respectively cultured in the vertical three-phase fluidized bed and the biological aerated filter tank to allow the cultured salt-tolerant strains to match with sewage treatment so as to increase the sewage treatment efficiency; an aerobic zone is formed in the guide cylinder and an anaerobic zone and a facultative anaerobic zone are formed outside the guide cylinder to allow suspension filler to circulate in and out the guide cylinder to promote the alternate reaction of nitration and denitrification.