30 results about "Extended aeration" patented technology

A sequencing batch completely autotrophic ammonia removal (CANON) technology running method belongs to the technical field of high-ammonia-nitrogen wastewater processing. The method comprises the following steps: 1, directly inoculating volcanic CANON biofilter backwash sludge for saving a long starting time; 2, determining the running DO value of the technology, and improving the dissolved oxygen when the DO value is 0-0.5, and most preferably 0.4, to improve the reaction rate; and 3, carrying out appropriate extended aeration to completely remove ammonia nitrogen in a reaction system without influencing the stable running of the system. The running method successfully solves a long starting time problem of the CANON technology, has the advantages of simplicity, obvious effect, and convenience for subsequent technological treatment because of the complete removal of ammonia nitrogen, and is a feasible and effective method for the running of the sequencing batch CANON technology.

The invention discloses a wastewater treatment process for advanced bio-denitrification. According to the process, on the basis of a traditional biological nitrogen and phosphorus removal process, a sludge membrane bioreactor (SMBR) is additionally arranged, so that an advanced bio-denitrification process is formed. The process is characterized by carrying out SMBR extended aeration treatment on part of secondary sedimentation tank returned sludge, building an environment suitable for the growth of nitrobacteria in the SMBR, and returning sludge enriching the nitrobacteria into an aerobic pool, so that the nitration efficiency of a large amount of nitrobacteria with high activity is greatly improved, and the SMBR discharge water is returned into an anaerobic pool so as to be denitrified or recycled in plants. According to the advanced bio-denitrification process, the hydraulic retention time of the aerobic pool can be reduced, the denitrification efficiency of a sewage treatment plant can be improved, and the surplus sludge of a secondary sedimentation tank can be reduced and stabilized. The process provided by the invention not only can be applicable to new sewage treatment plants, but also can be applicable to upgrading and reconstruction of the existing sewage treatment plants.

The invention discloses a penicillin waste water biological enhancement treatment device and method, and belongs to the technical field of waste water treatment and environmental protection. According to the device, the characteristics of multiple sewage treatment devices such as a sequencing batch type reactor, a membrane bioreactor and a moving bed bio-membrane reactor are integrated; the device mainly comprises a hydrolytic acidification area, a moving bed bio-membrane area provided with suspended filler, and a deep treatment area provided with a membrane assembly and suspended filler. The hydrolytic acidification area is used for pretreating waste water, improving biodegradability of the penicillin waste water and degrading a part of pollutants, and the deep treatment area is a main penicillin waste water biological treatment system. According to the penicillin waste water biological enhancement treatment device and method, the treatment efficiency of the penicillin waste water can be effectively improved, the occupied area can be reduced, the effluent quality can be kept stable, the service life of an aerating device and the membrane assembly can be prolonged, maintenance and operating cost can be reduced, and the penicillin waste water biological enhancement treatment device and method are especially suitable for treating the antibiotic waste water with large water quality and amount changes.

A novel, economical, efficient and versatile lagoon aeration system is provided which can be used with existing or new wastewater (sewage) lagoons to increase the lagoons treatment efficiency and capacity, and to allow for a continuous, year round discharge of treated wastewater to environment. The system can be operated in warm and cold climates for treatment of municipal and industrial wastewaters of varying strength and flow rates in a secondary activated sludge treatment process or in a tertiary activated sludge treatment process, or an extended aeration treatment process. The system employs patented (Patent No: U.S. Pat. No. 6,969,052 B2) Air Aspirator-Mixer (AAM) which provides highly efficient wastewater aeration outside the lagoon which facilitates an easy and economical operation and maintenance of the system throughout the year.

The invention discloses an extended aeration device for treating wastewater, and relates to the technical field of wastewater treatment. The extended aeration device for treating the wastewater comprises a treating pond, wherein a surface of the treating pond is fixedly connected with an air pump through a mounting seat; an air outlet end of the air pump fixedly communicates with a first pipe; theother end of the first pipe fixedly communicates with a timing box; a surface of the timing box fixedly communicates with a second pipe; and the other end of the second pipe penetrates through the bottom of the treating pond and is fixedly connected with the bottom of the treating pond. By arrangement of the timing box, the problem that an existing aeration device for treating wastewater does nothave a timing device is solved; by arrangement of a plurality of cross tubes and longitudinal tubes, the problem that the existing aeration device for treating wastewater cannot aerate accurately issolved; by arrangement of an electric push rod and a second chute, the problem that the exiting aeration device for treating wastewater does not have a delay device is solved; and a third pipe is arranged in each cross tube, and thus, the problem that the aeration rate of the existing aeration device for treating wastewater cannot be adjusted is solved.

The invention discloses an underwater aerator cleaning car based on visual sensors. The underwater aerator cleaning car comprises a movable car, a clamp for clamping an aerator and a cleaning brush for cleaning the aerator, wherein the clamp is fixed on an end cover; the cleaning brush is positioned below the end cover; the clamp is connected with a cleaning motor which is used for driving a rotary table to rotate; the end cover is connected with a lifting mechanism which is used for driving the end cover and the clamp to move up and down; visual sensors used for video measurement of the deviation between the aerator and the clamp are mounted on the end cover; visual sensors used for video measurement of the aerator position are mounted on the cleaning brush; the two groups of visual sensors are both connected with a microprocessor; the microprocessor comprises an image data reading module, a virtual outline custom module, an edge detection module and a detection and control module. The underwater aerator cleaning car is convenient to operate and has the advantages that the service life of the aerator is prolonged, and the wastewater treatment cost is reduced.

The invention relates to a method for treating phenolic wastewater by an activated sludge strengthening method through a complex enzyme preparation. The complex enzyme preparation is non-periodically added into an activated sludge biological treatment unit for treating the phenolic wastewater to activate aboriginal microorganism; therefore, the aboriginal microorganism digests and degrades pollutants in a water body and removes phenols and other toxic organic matters to greatly reduce chemical oxygen demand of the wastewater; and the wastewater can be continuously reused. In an aerobic system for treating the phenolic wastewater by an activated sludge method, when the CODCr of outlet water is obviously risen and color is deepened, 1N complex enzyme preparation is added into a water inlet end of a treatment pool according to 80,000:1 to 40,000:1; the color of the outlet water is thinned rapidly; and CODCr is reduced. The method can be applied to a common activated sludge method, a resting period activated sludge method, an oxidation ditch, a contact oxidation method, a biofilter, a cyclic activated sludge method (CASS), a fully mixed accelerated aeration method, an extended aeration method and a biological turnplate treatment unit. The method has low cost and convenient operation; and equipment has low cost, good treatment effect and large treatment strength and can fully meet the requirement of recycling washing wastewater of a coal gas generating furnace.

The invention relates to disinfection equipment, particularly relates to ultraviolet disinfection equipment for a medical gas terminal, and belongs to the technical field of a medical instrument. According to the technical scheme provided by the invention, the ultraviolet disinfection equipment for the medical gas terminal comprises a transparent breather pipe and an outer disinfection pipe sleeved outside the transparent breather pipe, wherein a plurality of ultraviolet lamp tubes are arranged inside the outer disinfection pipe. A coaxial outer disinfection pipe is arranged on the transparent breather pipe, the ultraviolet lamp tubes are arranged inside the outer disinfection pipe, a medical gas entering the transparent breather pipe is disinfected by virtue of the ultraviolet lamp tubes, and a reflecting layer capable of reflecting an ultraviolet ray is arranged on the inner connecting wall, so that the disinfection effect is enhanced by an extended aeration pipe, and the damage to a human body caused by the sterilization ultraviolet ray is avoided by virtue of a light trap. Thus, sterilization before the gas enters the body of a patient is effectively achieved, and the ultraviolet disinfection equipment is compact in structure, wide in application range, safe and reliable.

The invention relates to an unpowered rapid oxygenation rural domestic sewage treatment device and method. The unpowered rapid oxygenation rural domestic sewage treatment device comprises an anaerobic unit and an oxygenation aerobic unit. The oxygenation aerobic unit comprises a gravity aeration system and an aerobic reaction system. The gravity aeration system comprises a reversible water bucket, a piston assembly, an air suction pipe, an air guide pipe and an aeration head. Sewage discharged by the anaerobic unit is discharged into the reversible water bucket from the upper part of the reversible water bucket. The reversible water bucket, the air suction pipe and the air guide pipe are respectively connected with the piston assembly. The aeration head is connected with the air guide pipe, and the aeration head is positioned in the aerobic reaction system. Before the amount of water in the reversible water bucket reaches a preset water amount, a piston is extruded to discharge air. When the amount of water in the reversible water bucket reaches the preset water amount, the reversible water bucket is reversed to discharge the stored sewage, and the piston returns. The device is high in aeration speed, the contact time of gas and sewage is greatly prolonged, and the aeration efficiency is obviously improved. Meanwhile, the device is simple in structure, small in size and convenient to popularize and apply.

The present invention provides for sanitary sewage and industrial waste water pollution through extended aeration and activated sludge and biological treatment. Oxygen guided by suitable blowers, fertile aerobic microorganisms. Within 30 to 40 days, a dense cell mass is responsible for wastewater treatment digestion is formed. Digital timer function with automatic aeration adjusted according to the amount of raw sewage. If you increase or decrease the amount of waste, it can be reset by moving the thorns.

The invention provides an efficient denitrification method by use of an upgraded and modified ICEAS (Intermittent Cyclic Extended Aeration System) process for an urban sewage treatment plant and belongs to the technical field of sewage treatment. The method enables the removal rate of total nitrogen in effluent to be increased by at least 5% based on the original while keeping the removal rate of COD (Chemical Oxygen Demand) and ammonia nitrogen in the effluent basically unchanged, without adding an external carbon source. Relatively low carbon-nitrogen ratio of raw water is a problem that urban sewage plants in China face together; insufficient carbon source at the denitrification stage is a major factor of limiting the total nitrogen removal rate of the urban sewage treatment plants to be low, but external addition of the carbon source to increase the carbon-nitrogen ratio or new addition of a structure to increase the hydraulic retention time of sewage certainly leads to the increase of sewage treatment cost. The efficient denitrification method is characterized in that continuous water feeding is changed into intermittent water feeding, the carbon source in the raw water is utilized efficiently for denitrification instead of only adopting aerobic aeration oxidation, and the operating mode of the system is optimized, and a return pipe from a main reaction region to a pre-reaction region is newly added to comprehensively increase the removal rate of total nitrogen in the effluent. The efficient denitrification method has reference guidance significance for the upgrading and modification of the sewage treatment plants of similar processes.

The invention relates to an aeration sustained-release device, belonging to the technical field of sewage treatment. The aeration sustained-release device comprises a water outlet layer (1), a water outlet pipe (2), an aeration pipe (3), an aeration layer (4), sustained-release devices (5), microorganism attachment umbrella fibers (6), a water inlet layer (7), an air outlet pipe (8), a water inlet pipe (9) and ropes (10), wherein the water outlet pipe (2) is connected with the water outlet layer (1); the aeration pipe (3) is arranged in the water outlet layer (1), and the aeration layer (4) is arranged at the upper side of the water outlet layer (1); the aeration layer (4) is internally provided with the ropes (10), and the sustained-release devices (5) and the microorganism attachment umbrella fibers (6) are installed on the ropes (10); the water inlet layer (7) is arranged at the upper side of the aeration layer (4); the air outlet pipe (8) is connected with the water inlet layer (7); the water inlet pipe (9) is connected with the water inlet layer. The aeration sustained-release device is capable of realizing extended aeration according to the need, thus reducing the energy consumption; furthermore, the aeration sustained-release device convenient and simple to install.

The invention discloses an SBR treatment apparatus for enhancing nitrogen and phosphorus removal, and a method thereof. The apparatus comprises a sewage inlet device (3), an SBR reaction tank, an overflow device and a water outlet device (4) along a water flow direction; and the SBR reaction tank comprises a pre-reaction tank (1) and a main reaction tank (2). The treatment method comprises the following steps: (1) water inlet aeration of sewage in the pre-reaction tank; (2) prolongation of the aeration of the sewage in the main reaction tank; (3) standing precipitation of the sewage in the main reaction tank; and (4) decanting and discharging of a supernatant obtained after the precipitation. The main body device of the device has only one sequencing batch reactor, and has no secondary settling tank, sludge return system, regulating tank or primary settling tank, so the device has the advantages of compact arrangement, small occupied area and low cost; and the method adopting static precipitation has the advantages of good water outlet effect, alternative proceeding of an anaerobic/anoxic process and an aerobic process, short sludge age, high activity, and very good nitrogen and phosphorus removal effect.

The invention provides an aeration device; the aeration device comprises an aeration head and an aeration connecting part, wherein the aeration connecting part is connected with an external aeration pipe; the aeration head comprises a main body part, a bottom bracket and a first joint part; the first joint part is combined with the aeration connecting part; an aeration micro-hole is arranged on the main body part; and the aeration connecting part comprises a second joint part combined with the first joint part and a connection part connected with the external aeration pipe. The aeration device disclosed by the invention is simple and steady in structure, steady to operate and high in aeration efficiency; oxygen conveyed by the external aeration pipe enters the main body part of the aeration head through the aeration connecting part and then enters sewage through the aeration micro-hole; by means of the opposite acting force generated when oxygen rushes out of the micro-hole, the aeration device vibrates slightly; therefore, the micro-hole is prevented from being blocked; and the service life of the aeration device is prolonged.

The invention provides a blade aeration double-linkage treatment device of a solvent sewage treatment device, relates to the technical field of aeration devices, and solves the problem that blade typestirring and mixing cannot be synchronously realized when switching between an aeration state and a non-aeration state is realized so as to improve the aeration efficiency, the problem that multi-directional expansion of the aeration range cannot be realized through structural improvement, the problem that the reciprocating motion of the aeration main body part cannot be realized in a linkage manner to achieve the purposes of moving and stirring, changing the aeration position and expanding the aeration range. A blade aeration double-linkage treatment device of a solvent sewage treatment device comprises a frame body, and an aeration structure is arranged on the frame body. And when the incomplete gear rotates for a circle, the gear rotates for 60 degrees, so that on one hand, the incomplete gear is matched with the gear to realize the switching between an aeration state and a non-aeration state while realizing the rotary stirring of the blade B, and on the other hand, the aeration time can be prolonged through the meshing interval between the incomplete gear and the gear.

The invention discloses a novel underwater oxygenation aeration device. The novel underwater oxygenation aeration device comprises an aeration device shell and a micro-pore membrane, wherein the micro-pore membrane and the upper end of the aeration device shell are in sealed connection; an air inlet pipe is arranged at the lower part of the aeration device shell; the air inlet pipe upwards extends into the aeration device shell; the upper end part of the air inlet pipe is provided with an air inlet hole and two supporting rods; and a hollow cone-frustum-shaped shielding plate is arranged on the two supporting rods. With the adoption of the manner, the novel underwater oxygenation aeration device is simple in structure, and sludge can be delayed to block the air inlet pipe, so that the service life of the aeration device is prolonged.

A wastewater treatment system consisting of a single tank extended aeration activated sludge process with a continuously operating clarifier skimming device which is capable of producing a clear odorless effluent which meets applicable state discharge standards.

The invention provides plant salt containing sea salt. The plant salt is characterized in that the plant salt contains sea salt, the content of NaCl is 78-82%, the content of lead ions is smaller than or equal to 0.03 mg/kg, the content of mercury ions is smaller than or equal to 0.05 mg/kg, and the content of copper ions is smaller than or equal to 0.05 mg/kg. The invention further provides a method for preparing the plant salt through the process of removing heavy metal ions through an extended aeration method. The method is characterized by including the step of preparing refined bittern, wherein filtering is conducted and includes mechanical filtration and nanofiltration, nanofiltration temperature is 20-25 DEG C, and pressure is controlled to be 0.2-1.2 MPa. In the implementation process, the filtering process is advanced, the service life of a nanofiltration membrane is prolonged, the nanofiltration membrane is now replaced after being used 8-10 times instead of existing 2-5 times, and filtration production cost is greatly saved.

Aiming at the defects that an aeration device in the prior art affects forklift operation and is short in service life, the invention provides an aeration system for organic fertilizer composting, and belongs to the technical field of organic fertilizer production equipment.The aeration system for organic fertilizer composting comprises an air passage, an air supply mechanism, a temperature detection mechanism and a control mechanism which are formed in the ground, and the air passage is gradually narrowed from one end to the other end; a cover plate is arranged at the upper end of the air channel, the upper end face of the cover plate is flush with the ground, air holes are distributed in the cover plate, and the wider end of the air channel is connected with an air inlet pipe. The air supply mechanism comprises a heightening frame, an air blower is installed on the heightening frame, a corrugated pipe is arranged between an air outlet of the air blower and the upper end of the air inlet pipe, the corrugated pipe is arranged in a bent mode, the middle position of the corrugated pipe is lower than the two ends of the corrugated pipe, and a radiator is connected to the corrugated pipe. According to the invention, the air passage positioned underground is arranged and is matched with the cover plate, so that the operation of the forklift is not influenced, and meanwhile, the influence of water vapor in reflux gas on the air blower can be reduced, so that the service life of the aeration system can be prolonged.

The invention relates to a single-H operated power takeoff control system capable of canceling traveling power take-off. The single-H operated power takeoff control system comprises a gas storage cylinder which is communicated with a gas inlet of a power takeoff and a neutral position cylinder after sequentially passing through a power take-off electromagnetic valve and a high-gear shielding valve; a gas outlet of the power takeoff is communicated with a rod port of a power takeoff control cylinder; a gas outlet of the neutral position cylinder is connected with a single-H valve in a rear auxiliary box single-H control system by a gas circuit; and the coil of the power take-off electromagnetic valve is connected in series with a power take-off switch. When the single-H operated power takeoff control system is in use, gas simultaneously enters the power takeoff and the neutral position cylinder to implement synchronization of power take-off and stop and the high-gear shielding valve can prevent the phenomenon of asynchronism of power take-off and stop at the high gear and the phenomenon of extended aeration caused by the fault of the power take-off electromagnetic valve so as to finally avoid sudden hoisting in the traveling process. By the design, not only synchronization of power take-off and stop can be implemented, but also the sudden hoisting phenomenon can be avoided when a vehicle travels and safety is higher.

The invention provides a novel IFBR-UASB-ICEAS (Improved Fluidized Bed Reactor-Upflow Anaerobic Sludge Bed-Intermittent Cyclic Extended Aeration System) process for treating industrial wastewater. The process comprises a regulating reservoir, an improved Fenton fluidized bed, a degassing neutralization tank, a coagulative precipitation tank, an upflow anaerobic sludge bed and an ICEAS reactor; the units are connected sequentially through a water pipe, so as to treat the industrial wastewater. The process is optimized, the line is clear and concise, the overall removal rate of COD (Chemical Oxygen Demand) is larger than or equal to 95%, the removal rate of organic featured pollutants is larger than or equal to 95%, the operation management is convenient, the process is stable, and the investment operating cost is low.