134results about How to "High oxygenation efficiency" patented technology

The multifunctional water pumping aerator as one efficient water mixing and aerating apparatus consists of central ascending tube, aerating chamber, air chamber and air releasing pipe. The central ascending tube is one circular tube capable of regulating length automatically based on water level, and its lower part constitutes aerating chamber and air chamber together with a large outside pipe. Via the perforated air releasing pipe installed in the inlet of the aerating chamber, compressed air is filled to the aerating chamber and filled air forms the large rising bubbles in the central ascending tube to drive the upward water flow in the central ascending tube. The multifunctional water pumping aerator is installed floated in water and anchored with bottom anchoring pier, and may be set in reservoir to inhibit the growth of algae, improve bottom ecological environment and inhibit the dissolving and diffusion of phosphorus, ammonia nitrogen, etc. in water.

The invention discloses a sludge dephosphorizing and denitrifying biological disposing method, which comprises the following parts: adsorbing pool, sedimenting pool, regenerating pool, selecting pool, dephosphorizing pool, nitrated pool, denitrifying pool and hydrolytic acidifying pool, wherein the effluent enters in the adsorbing pool firstly to blend with reflux sludge in the selecting pool; the blending liquid is drained from adsorbing pool to sedimenting pool to separate mud from water; the supernatant enters into nitrated pool to denitrify in the denitrifying pool to drain; the sediment part of sludge is proceeded anaerobic hydrolysis in the hydrolytic acidifying pool; the supernatant is inputted into dephosphorizing pool to proceed chemical dephosphorizing; the other part of sediment pool refluxes sludge into selecting pool under anaerobic environment; the composite liquid from selecting pool is input in the regenerating pool; the other part supernatant from dephosphorizing pool is input in the denitrifying pool to accelerate denitrifying action.

The invention relates to improvement on an inverted umbrella-shaped aeration machine of a surface aeration apparatus for sewage treatment. The inverted umbrella-shaped aeration machine is characterized in that a rotary shaft is in a hollow structure, and at least the aeration is carried out in the water through an air distributing tube or a micropore aeration device in a terminal area, so that the inverted umbrella-shaped aeration machine is oxygenated by the swathed air generating whirl through rotation and oxygenates water by more air forcibly injected air, and the injected air is rotated through an impeller to stir and cut bubbles aerated into the water, particularly, the bubbles are cut through a sawtooth to ensure that the bubbles are finer to form micro-bubbles, thereby greatly improving the oxygenate capacity and the dissolved oxygen concentration of the inverted umbrella-shaped aeration machine and the deep oxygenation of the water body.

The invention discloses a process for treating wastewater generated in a solar silicon wafer production process and relates to wastewater treatment in the field of the electronic semiconductor industry. The process comprises the following steps of: pretreating wastewater in a preliminary sedimentation tank; carrying out Fenton and iron-carbon micro-electrolysis combined oxidization reaction on the wastewater in an iron-carbon micro-electrolysis reactor; after the reaction, feeding the wastewater into a coagulation-sedimentation integrated pool, feeding PAC (Poly Aluminium Chloride) and PAM (Poly Acryl Amide) to arouse the coagu-flocculation reaction of the wastewater, and after the reaction, performing sludge-water separation on the wastewater; causing the supernate to flow to a hydrolysis acidification pool, and then causing the wastewater to flow to a contact oxidation tank; causing the mixed liquid to flow to a secondary sedimentation tank for sludge-water separation, while causing the supernate to flow to a deflection sedimentation pool, and feeding PAC for purifying water so that the supernate is up to the stand and can be discharged after sedimentation; finally, performing concentration treatment on sludge. After non-degradable organic wastewater is treated by the process provided by the invention, the BOD5 (Biological Oxygen Demand) / CODcr (Chemical Oxygen Demand) ratio of the wastewater is obviously increased.

The invention relates to an aerating and oxygenating device. In order to effectively solve the problems that the aerating and oxygenating device is relatively small in oxygenating range, high in energy consumption, low in power efficiency and non-uniform in aeration, the invention adopts the technical scheme as follows: the aerating and oxygenating device comprises a motor, a speed reducer, a centrifugal impeller and a floating body, wherein the motor is connected with the speed reducer; a supporting body inclined downwards is installed on the side surface of the speed reducer; the motor and the speed reducer are suspended on a water surface through the floating body installed at the lower part of the supporting body; the speed reducer is connected with an upper annular disc above the water surface through a fixing component at the lower part; the upper annular disc is connected with a lower annular disc below the water surface through a connecting rod at the lower part; the centrifugal impeller between the upper annular disc and the lower annular disc is installed at the lower end part of a rotating shaft at the lower part of the speed reducer; a plurality of blades are uniformly distributed at the lower part of the upper annular disc in the external circumferential direction; and a flow guiding barrel is arranged in the center of the lower part of the lower annular disc. The aerating and oxygenating device is novel, unique, simple and reasonable in structure, low in cost, uniform in aeration, low in energy consumption, high in power efficiency, convenient to install, maintain, repair and replace and good in using effect.

A method for removing nitrogen and phosphorus by MBBRs (Moving Bed Biofilm Reactors) with sectionalized water inflow belongs to the field of sewage treatment. The MBBRs at first, second and third sections are divided into three sections, a sand disc aerator is arranged at the bottom of each MBBR, a bearing layer is arranged above each sand disc aerator, and a filling area is arranged above each bearing layer; hollow spheres are adopted as fillers, and the specification specific surface area of the hollow sphere ranges from 400m<2> / m<3> to 500m<2> / m<3>; and the filling volume of the fillers ranges from 15% to 45%. According to the method, the improved sectionalized water inflow technology is combined with fluidized bed biofilms, and the technology has the advantages of resisting shock load, strengthening SND (Shortcut Nitrification and Denitrification) denitrification, saving energy and reducing consumption by combination of activated sludge and the fluidized bed biofilms. Therefore, the method is applicable to the field of deep nitrogen and phosphorus removing on domestic sewage and industrial sewage in large, middle and small cities and towns.

The invention discloses an efficient oxygenation system for a confined space. The system comprises an aeration tank, a plurality of flow guiding plates are arranged in the aeration tank in the water flow direction and divide the aeration tank into a plurality of areas, different quantities of aerators are arranged in the areas in a concentrated mode according to the oxygen dissolving requirements of the areas, the aerators are rotary-cutting and mixed-flowing aeration devices, a flow guiding cutter is arranged over a water outlet of each rotary-cutting and mixed-flowing aeration device and arranged outside a corresponding central air inlet pipe, and a buffer distance is formed between each flow guiding cutter and the corresponding water outlet; each flow guiding cutter is an inverted cone with the conicity of 60 degrees to 65 degrees. According to the efficient oxygenation system for the confined space, the problems that in actual engineering, aeration in an aerobic tank is not uniform, the total oxygen dissolving efficiency is low, sludge in the tank is deposited, the aerators are prone to fall off and be blocked and aged, the oxygen utilization efficiency is rapidly lowered, management and maintenance are inconvenient, and the cost is high are solved.

The invention relates to an air-supply-type self-excited oscillation pulse jet aerator, and belongs to the technical field of environment-protecting devices. The invention relates to an improvement of the structure of a self-excited oscillation pulse jet aerator used for processing sewage. With the aerator provided by the invention, problems such as high energy consumption and low air-liquid mixing efficiency of an existing jet aerator are solved, and oxygenation efficiency is improved. The aerator comprises a housing. In the housing, form one side end face to the other side end face of the housing, a water inlet chamber, a nozzle, an air absorption chamber, a self-excited oscillation chamber inlet pipe, a self-excited oscillation chamber, a self-excited oscillation chamber outlet pipe, and a diffusion chamber are sequentially arranged. The inlet of the water inlet chamber is arranged on one side end face of the housing, and communicates with the nozzle. The nozzle communicates with the air absorption chamber. The air absorption chamber communicates with the self-excited oscillation chamber through the self-excited oscillation chamber inlet pipe. The self-excited oscillation chamber communicates with the diffusion chamber through the self-excited oscillation chamber outlet pipe. The outlet of the diffusion chamber is arranged on the other side end face of the housing. An air inlet is arranged on a side wall of the housing, and communicates with the air absorption chamber.

A surface aerating machine with reverse umbrella type compoiste blade wheel for filling O2 in water is composed of motor, drive shaft, blade wheel with radial blades and air sucking holes, and radial air-liquid mixing tubes with air inlet communicated to said air sucking hole.

The invention discloses an automatic elevating apparatus and method of an aeration tube of a floating aerator, and belongs to the technical fields of water restoration and water treatment. The apparatus comprises a slide rail fixed on a floating aerator floating body, slidable mechanical arms are arranged at the top feet of the slide rail, the bottom foot of every mechanical arm is provided with a slidable aeration branch tube, a rope of a pulley group mechanism pulls a large fixed pulley fixed above the mechanical arm slide rail, the large fixed pulley coaxially drives a small fixed pulley having a certain ratio relative to the large fixed pulley to rotate, and the small fixed pulley controls the top feet of the X-shaped mechanical arms to move apart or close up, so a case that a rising or descending distance of the aeration branch tubes driven by the X-shaped mechanical arms is almost same to a distance of a weight moving closer to the water level is realized, and a gas conveying flexible tube is synchronously retracted or released by a gas conveying tube telescoping mechanism. The apparatus and the method allow the aeration tubes to be positioned in specific positions above the riverbed, reduce the disturbance to riverbed sediments and improve the oxygen charging efficiency.

The invention provides a novel river aerator, comprising an air inlet pipe, a main connection pipe, an air distribution trunk pipe, a changeable microporous aerator, a clump weight and an indication regulating rod. One end of the air inlet pipe is connected with the air outlet pipe of an oxygenation pump in a fixing part on the bank. The other end of the air inlet pipe is connected with the main connection pipe through a flexible joint. One end of each of the two air distribution main trunk pipes is separately connected with the main connection pipe at the same time through a tee joint. The other end of each of the two air distribution main trunk pipes is separately the dead end. Two air distribution main trunk pipes are separately and evenly provided with a plurality of air distribution holes. A plurality of changeable microporous aerators is correspondingly installed on the plurality of air distribution holes. The two clump weights and the lower parts of the two dead ends of the two air distribution main trunk pipes are separately and relatively connected and fixed. The indication regulating rod is installed on the main connection pipe. The upper end of the indication regulating rod is exposed on the water surface. The novel river aerator is easy to be installed and repaired, which can perfectly adapt the complicate application condition. The problems of low oxygenation transfer efficiency, poor flow pattern, large disturbance to the sludge on the bottom of the river, high failure probability and so on can be solved.

The invention relates to improvement of an aeration rotary brush for water treatment. The aeration rotary brush is characterized in that the section of the blade of the rotary brush is in a triangle or a triangle-like shape; the aeration rotary brush is installed on a hub shaft so that triangle sharp cone enters water firstly when the aeration rotary brush turns into water. When the rotary brush rapidly turns into water, the tip end of the blade rushes into water, thereby greatly reducing resistance when the blade enters into water and operates in water, further reducing operation energy consumption and improving oxygenation dynamic efficiency; and since the resistance generated when the blade enters in water and operates in water is small, the problem that the blade is easy to deform and break after long-term operation under large resistance when entering water is overcome, the long service life of the blade is ensured, oxygenation capability and plug flow velocity can be improved through improving rotation speed, the maximum work water depth of a one-meter aeration rotary brush is as high as 5 meters; and by pits and / or lugs on side surfaces of the blade, plug flow dynamics and oxygenation efficiency both can be improved. Compared with a traditional rotary brush blade with the same specification, the aeration rotary brush provided by the invention has the advantages that the oxygenation capability is improved by 35%, the length per meter reaches 11.1 kgO2 / h, the overall dynamic efficiency is improved by 25% under the same electricity consumption, and dynamic efficiency can reach 3.125 kgO2 / kw.h.

The invention relates to the technical field of sewage treatment and discloses a multimedia baffled biological aerated filter. The multimedia baffled biological aerated filter comprises two stage biological aerated filters (1) and a rinsing hole (2), wherein the two stage biological aerated filters (1) are communicated through the rinsing hole (2) on the lower side; packing layers are arranged in the two stage biological aerated filters (1) and are successively a first packing layer (31) and a second packing layer (32) from top to bottom, and microorganisms and / or bio-enzymes are fixed in the first packing layer (31). The invention further discloses an application of the multimedia baffled biological aerated filter. According to the multimedia baffled biological aerated filter disclosed by the invention, down-flow type and up-flow type filters are arranged in a same aerated filter system, so that the device is compact in structure and the occupied area is reduced. The first stage biological aerated filter is mainly used for removing organic matters in sewage and reducing organic load entering into the second stage biological aerated filter, so that nitrification of the second stage biological aerated filter is facilitated. In the second stage aerated biological filter, organic matters in sewage is further removed, and nitrification is carried out under a low organic load.

The present invention relates to the field of water treatment, especially an aerobic biological treatment bioreactor which contains large particle easy-fluidization filling having a specific density of 0.7-0.95, and a void ratio of >=50%, the loading amount of the filling is 50-90% of the reactor's effective volume, and the aeration apparatus includes separate oxygen supply aeration device and fluidization aeration device.

The invention discloses a compound blast and aeration system that is applied in a biological contact oxidation system; the system is arranged under filler, and comprises a liftable tube-type catenaries suspension Millipore aerator and fixed perforation tube-type aeration device; the liftable tube-type catenaries suspension Millipore aeration device is arranged under the filler, and the fixed perforation tube-type aeration device is arranged under the liftable tube-type catenaries suspension Millipore aerator. The advantage of high oxygen utility ratio of the liftable tube-type catenaries suspension Millipore aerator is organically combined with the advantages of high scour intensity and easy regeneration of biomembrane of the fixed perforation tube-type aeration device, so as to lead the whole system to maintain the characteristics of high oxygen transfer rate, strong biomembrane activity, etc. The technology is convenient to implement, and the management and maintain are simpler; and the system has larger development space in the field of a biological contact oxidation aeration system.

The invention relates to a biochemical treatment method for improving polymer-containing sewage matrix of the oil field. Polymer-containing sewage is firstly added with a demulsifier and enters a demulsification buffer tank for demulsification, after a pH regulator is added to effluent of the demulsification buffer tank, the effluent enters a pH regulating tank and enters a floatation tank for floatation after pH is regulated, and a flocculant adding point is arranged at an inlet of the floatation tank; effluent of the floatation tank enters a filter, is filtered and then enters a water buffer tank, a compound biological nutritional agent is added, effluent of the water buffer tank sequentially enters an anaerobic tank and an aerobic tank for treatment and performs mud-water separation through a settling pond, a liquid supernatant of the settling pond is discharged after meeting the standard, a part of sludge at the bottom of the settling pond flows back to the front end of anaerobic tank, the remaining sludge and dross produced during floatation enter a sludge concentration tank and are concentrated and dewatered by a dewatering device. The treatment efficiency is high, the load impact resistance ability is high, the operation is stable and standard discharge after treatment of the polymer-containing sewage of the oil field is realized.

The application discloses an energy-saving water-driven enhanced nitrification secondary treatment type biological turntable. The energy-saving water-driven enhanced nitrification secondary treatment type biological turntable comprises a reaction tank and a high water tank arranged above one side of the water tank, wherein a tank body comprises a middle water truck driving area and biological turntable areas distributed on two sides; a water truck and bio-discs connected coaxially are respectively arranged in the water truck driving area and the biological turntable areas; triangular effluent weir crests, guide plates and water distribution plates are arranged in the biological turntable areas; a plurality of right angle partition plates with are arranged on the circumference of the water truck at equal intervals to form water accumulating grooves; a water outlet tube is arranged in a position, lower than the water truck, of the water truck driving area. According to the energy-saving water-driven enhanced nitrification secondary treatment type biological turntable, the water accumulating grooves of the water truck use the right angle partition plates, the water truck is placed in the middle of the reaction tank, the discs are distributed on two sides, so that stress is more uniform, the torque is shorter, the resistance is smaller, the device rotation performance is improved, the oxygenation efficiency is improved, and the water truck loading padding in the water accumulating groove is driven by fist class treated effluent to complete the rapid nitrification.

The invention belongs to the field of water treatment and particularly relates to a biological membrane reactor. The biological membrane reactor comprises a sewage reaction tank, an aeration pipe and biological membrane filler; the aeration pipe is arranged in the sewage reaction tank and provided with a plurality of air outlet positions, and the biological membrane filler is filled in the sewage reaction tank and connected with the air outlet positions. By connection of the biological membrane filler with the aeration pipe, internal aeration of the biological membrane filler can be realized so as to make the interior of a biological membrane in an aerobic state, activity and proportion of aerobic microorganisms on the biological membrane can be increased beneficially, membrane forming time of sewage microorganisms on the surface of the filler is further shortened, and sewage degradation efficiency is improved. According to experiments, compared with a traditional biological membrane reactor under same conditions, the biological membrane reactor has advantages that membrane forming time is shortened by 17 days, biological membrane thickness is increased by 10.42% after maturity, effluent TN is smaller than 10mg / L, COD is smaller than 50mg / L, and BOD is smaller than 10mg / L.

The invention discloses a water source quality improving apparatus which includes water lifting-aerating apparatus, distributing system. The water lifting-aerating apparatus connects an active carbon absorbing apparatus which loads active carbon by distributing system. The water lifting-aerating apparatus lifts the lower water body to the surface by compressing air to form water body cycle mixing and transport and distribute to the active carbon area. The contamination is removed by active carbon adsorption. The water lifting-aerating apparatus charges oxygen to the water body at the same time. The distributing system collects and distributes the offgas of the water lifting-aerating apparatus to the active carbon area to float the active carbon in order to make the water body flow through the active carbon area and fully contact with it. The invention is used for charging oxygen into water body and removing contamination with a high concentration and reducing the chroma and smell in the composite reservoir or upper or lower water layer of lake. It solves the problem of water quality restoration in suit, which is polluted with a high strength or burstiness in water source reservoir.

The invention discloses a system for efficiently carrying out oxygenation in finite space. The system comprises an aeration tank, wherein a plurality of guide plates are arranged in the aeration tank and divide the aeration tank into a plurality of areas; and different quantities of aerators are arranged in the plurality of areas respectively in a concentrated manner according to the oxygen dissolution requirements of the areas. The system is designed aiming at some defects of existing aeration systems in the actual operational processes and can be applied to aerobic biological treatment units of various industrial wastewater and domestic sewage. The problems of nonuniformity of aeration in aerobic tanks, low overall oxygen dissolution efficiency, accumulation of sludge in tanks, easiness in falloff, blockage and aging of the aerators, quickness in reduction of the oxygen utilization efficiency, inconvenience in management and maintenance, high cost, and the like in actual engineering are solved by adopting the system.

The invention belongs to the field of water treatment and particularly relates to a membrane bio-filler, a preparation method thereof and a membrane bioreactor. The membrane bio-filler is prepared from, by weight, 25-30 parts of sludge biochar, 30-35 parts of walnut shell biochar, 15-20 parts of quick lime, 20-25 parts of Portland cement, and 0.3-0.5 part of aluminum powder. The variety and content of raw materials for preparing the membrane bio-filler are optimized such that the membrane bio-filler having high strength, good bio-affinity and many surface wrinkles and ducts is acquired; by applying the membrane bio-filler to the membrane bioreactor, it is possible for microorganisms in wastewater to stably bond and quickly reproduce on the surface of the membrane bioreactor, and it is also possible to keep high transmission efficiency between the bio-filler and oxygen in the membrane bioreactor, time for forming biofilm of the microorganisms in the wastewater onto the surface of the bio-filler is shortened, the proportion and activity of aerobic microorganisms in the biological membrane attaching to the surface of the bio-filler are increased, and accordingly wastewater degrading efficiency of the membrane bioreactor is improved.

The invention belongs to the field of environmental protection and discloses a method for preparing a corundum microporous aerator pipe. The corundum microporous aerator pipe is prepared by mixing, curing, extruding, airing and solidifying and sintering corundum powder, kaolin, a pore-forming agent, an adhesive, a cross-linking agent and water which are used as raw materials sequentially, wherein the cross-linking agent is N-hydroxymethyl acrylamide and the using amount of the cross-linking agent is 10 to 20 percent of the mass of the adhesive. The corundum microporous aerator pipe prepared by the method has the advantages of high aeration density and oxygenation efficiency, high strength, long service life and length of more than 1 meter.

The self-closed perforated aeration pipe has hole or cut in the pipe wall and is made of material comprising acetic acid-ethyl acetate copolymer, polyolefin, compatibilizing agent, chemical cross-linking agent, inorganic mineral stuffing and additive. Under non-working state, the self-closed perforated aeration pipe has its hole or cut closed by the elasticity to avoid permeation. Under work state, active gas is introduced into the pipe to make the hole or cut opened to reach the designed air outlet amount. The present invention can avoid the micro hole jamming, and has high oxygen inflating efficiency, long service period and low production cost.

The present invention relates to an integrative composite structure of marine internal and external circulation three-phase biological fluidized beds. The integrative composite structure is composed of an external circulation three-phase biological fluidized bed (TBFB), an inner circulation three-phase biological fluidized bed (also called airlift inner circulation suspended filler fluidized bed, ACFB), suspended fillers and an air pump, wherein the external circulation three-phase biological fluidized bed is composed of a main bed and an auxiliary bed connected with the main bed by virtue of an upper communicating pipe and a lower communicating pipe, and a sewage inlet is arranged on the bottom of the main bed; the inner circulation three-phase biological fluidized bed comprises a main bed and an auxiliary bed which are embedded together, the main bed is embedded in the auxiliary bed, a settling bed is arranged above the auxiliary bed or a settling bar is arranged in the auxiliary bed to serve as a water outlet, a solid-liquid separating hopper is arranged below the auxiliary bed, the main beds of the outer circulation three-phase biological fluidized bed and the inner circulation three-phase biological fluidized bed are connected with the air pump to be supplied with power by the air pump, the auxiliary beds are combined into a whole, and the suspended fillers containing biological species are filled in the structure. The integrative composite structure provided by the invention has the advantages of being compact in structure, high in efficiency, low in energy consumption and capable of being industrialized, having nitrification and denitrification functions and the like.

The invention discloses an improved integrated oxidation ditch which is characterized in that an A2O process, an annular oxidation ditch and a secondary sedimentation tank are combined fully.The oxidation ditch achieves the intermittent aerobic and anoxic process, the center of a round reaction tank is provided with a radial flow type sedimentation tank, an anaerobic reaction tank is added to an air inlet of the oxidation ditch and is subject to combined construction together with the oxidation ditch, sludge flows back to the anaerobic reaction tank, and micropores are adopted for aeration so as to overcome the shortcomings that an ordinary oxidation ditch is small in water depth, low in aeration power efficiency and high in energy consumption.The improved integrated oxidation ditch has the advantages that the oxidation ditch is stable in treatment effect, good in nitrogen and phosphorus removal effect, stable in outlet water quality and resistant to impact load, the space occupied by a treatment facility is small, per ton water investment is saved, and the running cost is low; and the improved integrated oxidation ditch is suitable for small and medium sewage treatment plants having the nitrogen and phosphorus removal requirements.

The invention provides a water purification system, belonging to the field of water treatment. The water purification system comprises an oxygenation device and a microbial carrier device, wherein the oxygenation device comprises an air compressor, a magnetic assisted cyclone gas dispersion pipe and a gas inlet pipe connected between the air compressor and magnetic assisted cyclone gas dispersion pipe; the microbial carrier device comprises a floating barrel, a basalt fiber carrier and a concrete precast block; the upper and lower ends of the basalt fiber carrier are respectively connected with a floating ball and the concrete precast block; and the basalt fiber carrier is suspended in water. Sewage forms abundant gas bubble flow after passing through the magnetic assisted cyclone gas dispersion pipe, and submarine aboriginal microbes are attached to the basalt fiber carrier and perform massive reproduction. The water purification system can increase the dissolved oxygen concentration in the water body and the aboriginal microbial biomass in water. The microbubbles are utilized to oxidize the sediment and reduce the endogenous pollution, and the microbes on the carrier are utilized to degrade the pollutants in the water body, thereby implementing efficient and quick purification of the pollutants in the closed water body.

The invention discloses an integrated sewage treatment device based on a tidal aerated biological filter. The integrated sewage treatment device comprises a sedimentation tank, the aerated biologicalfilter, an anaerobic filter and a respiratory filter which are sequentially connected by pipes. A water inlet pipe is arranged at the upper part of the sedimentation tank, a produced water pipe is arranged at the bottom of the respiratory filter, a main filter layer and a drainage layer are arranged in the aerated biological filter sequentially from top to bottom, the main filter layer is filled with a primary filter material, the drainage layer is filled with a secondary filter material, and the particle diameter of the secondary filter material is greater than that of the primary filter material. The bottom of the drainage layer is provided with a water outlet, the water outlet is connected with a tidal drainage device, and the tidal drainage device is connected with the anaerobic filter. The integrated sewage treatment device has the advantages that the sedimentation tank is arranged at the front end of the water inlet pipe to remove most of sediments so as to ensure the water inletcondition of the filter; and the tidal aerated biological filter, the anaerobic filter and the respiratory filter constitute an aerobic-anaerobic-aerobic process combination, which has a good effecton the removal of ammonia nitrogen and other pollutants. The entire device is small in size, high in load, and low in operating energy consumption.

A biological rotary disk apparatus (rotary biomembrane apparatus) with filter cavity for biochemical reaction and solid-liquid separation is composed of a rotary tubular axle with bearings and bearing holders at its both ends and drive unit. A filter cavity formed by filtering membrane made of porous material is installed onto said rotary tubular axle with holes to make the axle pass through the filter cavity.

The invention discloses a method for efficiently treating black and odorous water bodies, and mainly aims at the problems of slow effect and high investment in existing black and odorous water bodies, and proposes a method for efficiently treating black and odorous water bodies with less investment and quick results. The method The method includes the following steps: taking out part of the black and smelly water, adding medicament to the taken out black and smelly water, controlling the uniform distribution of the medicament in the taken out black and smelly water to form drug-containing sewage; performing desliming treatment on the drug-containing sewage to remove the sewage in the black and smelly water mud to form deslimed clear water; aerate the deslimed clear water to form aerated clear water; release the aerated clear water into black and odorous water. The invention has the advantages of large amount of treated water, small occupied area and low investment cost.

The invention discloses an environment-friendly medical wastewater treatment device which structurally comprises an integral treatment cylinder, support blocks, a wastewater inlet tube, a feeding repairing window, a sealing cover, a residual sludge discharge tube, a partition plate, a reclaimed water discharge tube, a precipitate discharge tube, a contact oxidation chamber I, activated sludge, a contact oxidation chamber II, a water submergible oxygen charge aerator, a biological membrane net, a mixing reaction chamber, a coagulant, an on-line pH value tester, a precipitate filtering chamber, a backwash tube and a disinfectant supply tube, wherein the support blocks are uniformly arranged below the integral treatment cylinder at equal intervals and are perpendicularly connected with the integral treatment cylinder via electric welding. Due to adoption of the water submergible oxygen charge aerator, underwater oxygen supply and aeration are adopted, the aeration noise is reduced, relatively sufficient aeration is achieved, the oxygen supply efficiency is improved, sufficient oxygen is supplied to bio-membrane treatment, deep treatment on medical wastewater is achieved, the quality of effluent of medical wastewater is improved, and the practicability of the medical wastewater treatment device is improved.