94 results about "Air stripping" patented technology

The invention discloses a method for removing bromine ions in a salt water body. The method comprises the steps of pretreatment before electrolytic oxidation, primary precise directional electrolysis, primary split-pole separated air real-time air stripping, secondary precise directional electrolysis, secondary split-pole separated air real-time air stripping, deep removal of bromine ions Br <-> by a reverse osmosis membrane, separation of bromine carrier airflow containing Br2 and the like. According to the method, the problems of environmental friendliness, economical efficiency, relatively good adaptability, directivity of a bromine ion Br <-> removal standard and how to deeply remove the bromine ion Br <-> in the prior art can be solved, and the Br <-> in the salt water body can be reduced to 10 ppm or below; the unit operation in the process path is basically conventional operation or universal operation, and has a good engineering feasibility foundation and an economic feasibility foundation.

The utility model discloses a graded depressurization and negative pressure stripping ozone reaction system, and belongs to the technical field of sewage treatment systems. The device comprises a first-stage catalytic oxidation tank, a second-stage ozone release tank and a third-stage negative pressure release and air stripping tank which are sequentially connected through pipelines, catalysts are arranged in the first-stage catalytic oxidation tank and the second-stage ozone release tank, and an aeration disc is arranged at the bottom of the third-stage negative pressure release and air stripping tank; and tail gas of the first-stage catalytic oxidation tank and the second-stage ozone release tank is controlled to be discharged by an electromagnetic valve, and enters an aeration disc in the third-stage negative pressure release and air stripping tank through a one-way valve. The tank body pressures of the first-stage catalytic oxidation tank, the second-stage ozone release tank and the third-stage negative pressure release and stripping tank are sequentially reduced. According to the utility model, ozone dissolved gas water releases ozone in batches in a graded pressure reduction manner, so that the ozone is efficiently utilized; air stripping is carried out under the negative pressure condition of the three-stage reaction tank, the denitrification effect is enhanced, front-end ozone tail gas is secondarily utilized, the ozone utilization rate is increased, and the COD removal effect is enhanced.

The utility model discloses a kind of activated carbon adsorption devices for sewage treatment, comprising: air stripping pump, carbon washer, water delivery pipe and water distributor. Air stripping pump includes air inlet pipe, air distribution pipe and lift pipe, the air distribution pipe is sleeved on the outside of the lift pipe, the air inlet pipe is connected with the air distribution pipe;Carbon washer includes backwash chamber and hole cover, the upper end of the lift pipe is located in the backwash chamber, the upper portion of the backwash chamber is equipped with carbon lifting port and exhaust port, lower portion is equipped with carbon discharge port and blowdown port, the hole cover is matched with the carbon lifting port;Water delivery pipe is sleeved on the outside of the air distribution pipe, water inlet pipe is connected on its outside;Water distributor is connected with the lower end of the water delivery pipe.One set of device completes activated carbon backwash and two kinds of operation of lifting, realizes activated carbon adsorption filter reuse function.

The utility model provides a drainage pipeline inverted siphon device capable of automatically dredging and discharging sludge. The drainage pipeline inverted siphon device comprises a water inlet well, a water outlet well, a water inlet well sludge hopper, a water outlet well sludge hopper, an inverted siphon pipe, a water inlet well lifting device, a water outlet well lifting device, an air compression device, a sludge discharging air pipe, an air flushing pipe, an inclined tee joint and a spray head. The top of the water inlet well sludge hopper is communicated with the top of the water outlet well sludge hopper through an inverted siphon. The device has the following advantages: 1, sludge deposited at the bottom of the sludge bucket is lifted to the ground by using an air stripping method and can be pulled away by a sewage suction truck; 2, sludge deposited at the bottom of the inverted siphon is flushed into a sludge hopper of a water outlet well through compressed air, and then the sludge is discharged out of the system through an air stripping method; 3, the same set of air compression device can be adopted as an air source for desilting and sludge discharging, and the energy-saving effect is achieved; the sludge monitor in the water outlet well is used for monitoring the sludge thickness, automatic dredging and sludge discharging are started according to a signal, time and labor are saved, and management is convenient.

The invention provides a novel freshwater fish factory recirculating aquaculture system, which comprises a culture pond, a vertical flow precipitator, a microfilter pond, a biochemical air floatation pond, a sand cylinder filter, a nano denitrification system and a multi-stage air stripping system, the culture pond is respectively connected with the vertical flow precipitator and the microfilter pond, the vertical flow precipitator is connected with the microfilter pond, the biochemical air floatation pond is connected with the sand cylinder filter, the nano denitrification system is connected with the biochemical air floatation pond, and the multi-stage air stripping system is connected with the sand cylinder filter. The biochemical air floatation tank is connected with the microfilter tank through a pipeline, the biochemical air floatation tank comprises an air floatation bin, a pump bin, a biochemical bin and a denitrification bin, and the pump bin is respectively connected with the sand cylinder filter, the nano denitrification system and the multi-stage air stripping system through pipelines; and circulating pumps are arranged on pipelines for connecting the pump bin with the sand cylinder filter, the nano denitrification system and the multi-stage air stripping system. According to the invention, the multi-stage cooperative treatment system is constructed and the denitrification system is introduced, so that the total nitrogen removal rate of the culture system is increased to 96%, which is increased by 140% compared with that of the traditional system, the water supplementing amount of the system is reduced, the daily water supplementing amount is reduced to less than 3%, and the water saving rate of the total amount of circulating water exceeds 70%.

The application discloses a sewage collection system for dispersed emission sources 2 O processing linkage system and processing method, the linkage system comprises: sewage pretreatment and pipe network collection system, A 2 O processing system and discharge system. The application solves the sewage collection problem caused by complex terrain in the sewage collection range by adopting negative pressure collection technology, improves the sewage collection efficiency, creatively applies the air stripping technology, the Venturi technology and the siphon technology to the sewage process, and only needs a self-priming pump to realize the sewage collection and A 2 O process of sewage lifting, sludge and water backflow and oxygenation; the Venturi jet device directly performs jet aeration on the aerobic tower, reduces the dependence on high-energy consumption mechanical aeration blower, avoids resource waste and material loss; meanwhile, the water flow and dissolved oxygen distribution of the reaction tank are optimized, natural circulation is formed between the aerobic tower and the anoxic tower through the density difference, no additional power is needed, the energy consumption is reduced, the denitrification and phosphorus removal process is promoted, and the treatment efficiency is significantly improved.

The utility model discloses a system for indoor continuous culture of gynura mongolica. The system comprises a culture container, an imitated natural light source, a temperature control device, a heat exchange tube, a culture water outlet, a physical filter device, a protein separator, a microorganism filter device and a PEM ozone device. A powerful filtering system and an air stripping system are utilized, the air stripping system can disturb a large amount of water, excrement of heavy euonymus mongolicus is filtered out at the first time, excrement sinking to the bottom cannot be generated, the aquaculture water is in a clean state, a powerful circulating water system is matched, ammonia nitrogen nitrite in the water is reduced, and the water quality is improved. And the treated high-quality purified water is conveyed back into the culture container, so that the purpose of recycling the culture water is achieved, the quality of the used culture water is good, the naked belly flea Mongolica can effectively grow in a comfortable environment, and the probability that the naked belly flea is completely killed due to insect falling and necrosis is greatly reduced.

The present invention relates to the field of wastewater treatment. To address the time-consuming issue of short-term nitrification treatment of high-ammonia nitrogen wastewater, a method for treating high-ammonia nitrogen wastewater is provided. The method comprises the following steps: the high-ammonia nitrogen wastewater enters an aeration tank through an air stripping device, where it fully contacts biological fillers and is separated into clear water and muddy water after sedimentation. The muddy water then re-enters the air stripping device after aeration to initiate a new cycle; the biological fillers are attached with ammonia-forming bacteria that decompose organic nitrogen into ammonia nitrogen. Utilizing the principle of short-term denitrification, the process has a stronger denitrification capacity than traditional multi-stage AO processes, achieving a denitrification efficiency exceeding 95%. In actual operation, the process can reduce oxygen supply by approximately 25%, reduce residual sludge discharge by approximately 50%, and lower operating costs.

The invention discloses a heavy metal emission reduction and sludge reduction treatment process method for circuit board wastewater. The invention provides a layered precipitation strategy of'first acid, second alkali and second sulfur '. The method comprises the following steps: performing acid precipitation on alkaline organic wastewater by using acidic wastewater, and recovering printing ink residues; carrying out air stripping treatment on the copper ammonia wastewater by utilizing an alkaline condition, and precipitating high-purity copper hydroxide; and finally, carrying out deep precipitation on residual complexing heavy metals by utilizing excessive sulfides in the pretreatment stage, and further recovering copper resources in the comprehensive water tank through coprecipitation of copper hydroxide and copper sulfide. Sludge generated in each process is classified and treated; printing ink slag, biochemical residual sludge and copper / nickel sulfide sludge are subjected to synergistic pyrogenic process treatment; copper hydroxide sludge is selectively subjected to acid dissolution to prepare copper sulfate. Lime, ferrous sulfate and polyaluminum are not used in the whole process. According to the method, the medicament is utilized to the maximum extent, the sludge is reduced by 50% or above, and the resource value of valuable metal is increased by 3-5 times.

The invention provides a wastewater treatment device and method for PVB (Polyvinyl Butyral) resin production. The wastewater treatment device comprises a tower body, and a liquid distributor, a filler layer and an aeration device are sequentially arranged in the tower body from top to bottom; the top of the tower body is provided with an air outlet, and the bottom of the tower body is provided with a water outlet; the liquid distributor is connected with a water inlet pipe; the aeration device is connected with an air inlet pipe; and a foam trapping device is arranged between the air outlet and the liquid distributor. Through the arrangement of the foam trapping device, total cross-section interception of rising foams, complete collection of fractured liquid, thorough separation of gas and liquid in space and reflux treatment of concentrated liquid can be realized; therefore, the problems of liquid accumulation, blockage, corrosion and the like of a gas-phase pipeline caused by foam escape when the PVB resin production wastewater is treated by the existing air stripping tower are effectively solved, and the technical problem that the pollutant removal efficiency is overestimated is effectively solved.

The present invention discloses an in-situ purification integrated device for VOCs in groundwater and an application method, which relates to the technical field of in-situ remediation of soil and groundwater. The device includes an in-situ air stripping-aeration-agent dosing integrated pneumatic pump, a groundwater extraction well, an agent dosing pipe, a ground agent dosing device, a pneumatic pump access pipe, a ground tail gas treatment device, a fan, and a vapor extraction device. By connecting the in-situ air stripping-aeration-agent dosing integrated pneumatic pump with the ground tail gas treatment device, the present invention realizes the recycling of tail gas within the system, reduces the high dependence on tail gas treatment processes, lowers the equipment operation, maintenance, and detection costs. The tail gas circulates within the system, avoiding direct emission of tail gas to the outside world, greatly reducing the potential pollution risk to the surrounding environment, realizing a more environmentally friendly groundwater purification process, and reducing the occurrence probability of environmental problems and related environmental incidents caused by tail gas emissions.

The invention discloses a filtering and recycling method and system for concentrated slurry of uranyl carbonate and ammonium diuranate in crystallization mother liquor, and relates to the technical field of uranium purification, the recycling method comprises the following steps: S1, adopting at least two solid-liquid separation devices which are arranged in parallel to carry out alternate circulating filtering treatment on tower bottoms of crystallization mother liquor containing uranyl carbonate and / or ammonium diuranate, filtering to obtain filtered clear liquid and an ammonia-containing filter cake; s2, carrying out air stripping treatment on the ammonia-containing filter cake obtained in S1 to separate ammonia-containing gas and obtain a solid material with low ammonia content; s3, carrying out absorption treatment on the ammonia-containing gas separated in S2 to obtain an ammonium-containing product; and S4, carrying out pyrolysis treatment on the solid material with low ammonia content obtained in S2 to obtain a uranium-containing product. Through cooperation of double-machine alternate circulating filtration, air stripping separation, absorption recovery and pyrolysis conversion, the technical problems of ammonia nitrogen pollution transfer, dependence on manual operation, long flow and high water content of a filter cake are solved.

The utility model discloses a lifting type circulating flow facultative anaerobic bioreactor which comprises a reactor body, a central cylinder is arranged in the center of the reactor body, a central cylinder cover is arranged at the top of the central cylinder, a space for water to pass through is formed by the central cylinder cover and the top of the central cylinder, and a water inlet pipe is arranged on the side portion of the reactor body and extends into the central cylinder. A group of return pipes are arranged on the outer surface of the central cylinder along the circumferential direction of the central cylinder, the return pipes are communicated with the central cylinder, a gas stripping pipe is arranged at the top of the reactor body, the gas stripping pipe penetrates through a central cylinder cover and extends into the central cylinder, and the gas stripping pipe is arranged at the top of the reactor body, penetrates through the central cylinder cover and extends into the central cylinder. Sewage forms an up-and-down circulating flow state in the reactor under the action of gas stripping, and sludge is in a suspended state under the disturbance of the sewage in the circulating flow state, so that full contact between hydrolytic acidification zoogloea and water is ensured, and local short flow and sludge aggregation are prevented.

The present invention discloses a highly efficient denitrification SBBR sewage treatment device, belonging to the field of sewage treatment technology. It solves the problem that sewage in existing SBBR reaction tanks cannot circulate to generate endogenous denitrification reactions. The device comprises an SBBR reaction tank connected to a sewage assembly. The SBBR reaction tank comprises a reaction tank body, a baffle provided in the middle of the reaction tank body, and a plurality of biological filler racks evenly distributed on both sides of the baffle installed in the reaction tank body. Each biological filler rack is provided with an aeration disk at the bottom, and an air stripping assembly is installed on the side of the baffle near the reaction tank body. The present invention utilizes a portion of the air volume of the aeration fan, without increasing energy consumption or adding a carbon source, and utilizes the air stripping assembly and baffle to fully contact pollutants in the water with microorganisms attached to the biological filler racks. This device utilizes endogenous denitrification to efficiently remove nitrogen, thereby ensuring that the total nitrogen content of the effluent meets the standard by stably adding no or only a small amount of carbon source.

The invention provides an efficient regeneration molecular sieve drying, adsorption and filtration device, which belongs to the technical field of gas drying, adsorption and filtration and comprises a shell, a gas inlet pipe arranged at the top and an exhaust assembly arranged at the lower part of the side surface. A grading filtering module, a self-adaptive adsorption module, a pressing plate module, an airflow uniform distribution plate and an intelligent regeneration module are sequentially mounted in the shell. The graded filtering module is used for multi-stage filtering; the self-adaptive adsorption module realizes adsorption through a bearing table and a molecular sieve packaging assembly; the pressing plate module elastically fixes the molecular sieve and switches a communication state during adsorption and regeneration; the intelligent regeneration module is integrated with a hot air stripping assembly and a pulse back blowing assembly to synergistically realize efficient regeneration; and regenerated tail gas is discharged from the side wall discharge pipe. Through graded filtering protection, elastic fixing of pressing plate module integration and gas path self-switching, uniform distribution optimization of gas flow and cooperative regeneration of hot air stripping and pulse back blowing, efficient purification, thorough regeneration, structure simplification and long-period stable operation of the molecular sieve drying adsorption device are achieved.

The utility model is applicable to the technical field of sewage treatment equipment, and particularly relates to a clean gas stripping water production device for an SBR (sequencing batch reactor) process, which comprises a sewage pool, a U-shaped pipe is arranged in the sewage pool, one end of the U-shaped pipe is connected with a first drainage pipe, and the other end of the U-shaped pipe is connected with a second drainage pipe; the outer side of the first drainage pipe is connected with an air injection pipe, and the end, away from the first drainage pipe, of the air injection pipe is connected with a first ventilation hose. According to the utility model, sludge and other suspended matters can be effectively prevented from entering a drainage system in aeration and stirring processes, and the turbid phenomenon at the initial stage of water production is avoided. Meanwhile, the air weir is arranged to form a gas isolation area in a sewage treatment stage, so that the dirt is prevented from entering a water production pipeline, and the purity of the supernate during drainage is ensured. By means of the design, the discharging efficiency of supernate is greatly improved, cleanliness of a water production pipeline is guaranteed, and then the water outlet quality is improved.

The utility model discloses nitric acid pickling copper wastewater total nitrogen removal equipment which comprises an air stripping tower main body and an exhaust chimney, and the exhaust chimney is fixedly mounted at the top of the air stripping tower main body; the efficient removal assembly comprises a PH adjusting heating tank, a header pipe, a spraying circulating pipe, a drainage pipe, a first filler layer, a second filler layer and a centrifugal fan, the PH adjusting heating tank is arranged at the side part of the air stripping tower main body, the header pipe is arranged at the top of the PH adjusting heating tank, the header pipe is connected with the spraying circulating pipe in a grading manner, and the drainage pipe is connected with the spraying circulating pipe. A drainage pipe is fixedly inserted into the bottom of the spraying circulating pipe, a first filler layer and a second filler layer are fixedly mounted in the air stripping tower main body, and the side part of the air stripping tower main body is fixedly connected with an air outlet end of a centrifugal fan. According to the device disclosed by the utility model, free ammonia dissolved in wastewater can pass through a gas-liquid interface and is transferred to a gas phase, so that the aim of deeply removing ammonia nitrogen and total nitrogen is fulfilled.

The utility model relates to the technical field of sewage treatment equipment, in particular to a co-construction micro-ecological filter bed device for rural areas, which comprises a regulating reservoir and a contact oxidation pond, a grating channel is arranged at the front end of the regulating reservoir, an artificial grating is mounted in the grating channel, the grating channel is communicated with the regulating reservoir, an equipment room is arranged at the front end of the contact oxidation pond, and the equipment room is communicated with the contact oxidation pond. A fan is mounted in the equipment room, the output end of the fan is connected with an air pipe, the air pipe is connected with an air stripping device through a regulating tank, the output end of the air stripping device is connected with a plurality of groups of aeration discs, the aeration discs are mounted in a contact oxidation pond, a contact oxidation pond water outlet pipe is mounted at the left end of the contact oxidation pond, and a water outlet pipe is mounted at the right end of the contact oxidation pond. Due to the integration of the adjusting tank, the biochemical system and the micro-ecological filter bed, the occupied area of the sewage station is reduced, the excavation work amount of civil construction is reduced, the development of construction procedures is facilitated, and the total construction time is shortened.

The application discloses an aeration cyclone off-shore algae control system and an operating method, and belongs to the technical field of off-shore algae control, which comprises an air compressor, a water tank, a heat exchanger, a cooling circulating device and a plurality of aeration cyclone mechanisms. Each aeration cyclone mechanism comprises aeration main pipes, horizontal aeration branch pipes and a plurality of vertical aeration branch pipes. A connecting hose is arranged between each two adjacent aeration main pipes, and an aeration hole is arranged at the upper end of each vertical aeration branch pipe. Through the application, off-shore active algae control is realized in a period with strong light and high temperature. The 'air stripping' effect generated by the rising of air bubbles increases the Reynolds number and the turbulence degree of water, thereby destroying the requirement of blue algae for still water. The appearance of cyclone also destroys the normal migration rule of blue algae, so that the blue algae cannot normally perform photosynthesis. Moreover, the cyclone fully mixes water layers with different temperatures, greatly reduces the water temperature of the surface water body, and effectively controls the growth of blue algae.

The application discloses a kind of air stripping devices for groundwater pollution remediation, it relates to air stripping field, including fixed seat, installation platform and air stripping pipe are fixed on the fixed seat, air stripping generating mechanism and filter are fixed on the air stripping pipe.This method is used in the process of groundwater extraction by air stripping device, and the air stripping generating mechanism can automatically clean the algae and larger sand and stone on the filter, so that the air stripping device can work continuously for a long time, effectively improve the overall working efficiency of the air stripping device.

The utility model discloses a sedimentation tank upper part gas stripping sludge discharge device which comprises a sedimentation tank, a support plate is arranged above the sedimentation tank, and a movable seat is arranged on the left side of the top of the support plate. The slidable moving seat is arranged on the supporting plate, the sludge pipe is driven by the moving seat to slide on the moving rod, meanwhile, the supporting plate can slide in the guide groove of the fixed seat through the guide sliding block, the threaded rod is driven to rotate in cooperation with the driving motor, the threaded block moves, and therefore the supporting plate is driven to move; multi-direction movement of the sludge pipe in the sedimentation tank is achieved, targeted sludge discharge can be conducted on different areas of the sedimentation tank, the sludge discharge uniformity and efficiency are improved, air compression equipment introduces compressed air into the sludge pipe through a pipeline, an air pipe and a branch pipe, sludge at the bottom of the sedimentation tank is discharged according to the air stripping principle, and the sludge discharge efficiency is improved. The lower end of the sludge pipe is provided with the air nozzle, compressed air is sprayed out from the air nozzle, sludge can be better driven to rise, and the sludge discharge effect is improved.

The utility model discloses an ultrasonic-assisted ammonia nitrogen stripping device, which relates to the technical field of ultrasonic-assisted ammonia nitrogen stripping devices, and comprises a base, the top of the base is fixedly connected with a stripping tower body, a group of ultrasonic emitters are arranged on the surface of the stripping tower body, a group of clamping grooves are arranged on the inner wall of the stripping tower body, and the ultrasonic emitters are arranged in the clamping grooves. A frame body is movably connected in each clamping groove, three layers of packing materials are arranged in each frame body, and the three layers of packing materials are respectively and sequentially arranged into an annular structure, a plate sheet type structure and a corrugated structure. According to the utility model, the threaded rod and the fixing block are rotated to enter the clamping groove, so that the frame body is fixed, and then the air bag is filled with gas to expand, so that the connectivity between the frame body and the air stripping tower body can be increased, the fixing block can be supported, and the frame body can be conveniently fixed again; according to the structure, the frame body can be quickly mounted and dismounted, the filler material can be conveniently replaced, and the working efficiency can be improved.

The invention relates to the technical field of copper phthalocyanine wastewater treatment, and discloses a copper phthalocyanine wastewater multi-stage treatment device, which comprises a filter tank for sequentially treating wastewater and filtering impurities, a multi-effect treatment tank for air stripping and flocculation treatment, and a settling tank for standing and settling, the discharge pipe and the waste discharge pipe are mounted in the middle of the bottom of the multi-effect treatment tank, a conduction pump assembly is fixed in the multi-effect treatment tank through a support, and the conduction pump assembly and the discharge pipe form a communicating vessel system for liquid discharge; the rotary connecting piece is rotationally mounted above the middle part of the multi-effect treatment tank through a bracket, and an aeration treatment net is connected to the rotary connecting piece in a through manner and is used for respectively realizing air stripping exhaust and flocculation replacement through air pressure and hydraulic pressure. According to the multistage treatment device for the copper phthalocyanine wastewater, efficient purification treatment of the wastewater is realized by utilizing treatment processes such as filtration, air stripping and flocculent precipitation, meanwhile, the purification treatment is high in efficiency and comprehensive in treatment, and residues of impurities and harmful substances are not easily caused.

The invention relates to an organic waste liquid directional conversion recycling method and system, and belongs to the technical field of organic waste liquid treatment. The method comprises the following steps: inputting toxic organic waste liquid into a catalytic oxidation reactor, continuously introducing air, and carrying out catalytic oxidation reaction to obtain pretreated waste liquid; the pretreatment waste liquid is sequentially input into a first anaerobic tower, an air stripping tower and a second anaerobic tower to be treated, and methane is introduced into the first anaerobic tower, the air stripping tower and the second anaerobic tower. Through relatively low-temperature and low-pressure catalytic oxidation pretreatment, the pretreatment time is shortened, detoxification of the high-concentration organic waste liquid is realized, and meanwhile, the energy consumption and the cost of catalytic oxidation pretreatment are reduced; by arranging the catalytic oxidation reactor, the first anaerobic tower, the air stripping tower and the second anaerobic tower, catalytic oxidation pretreatment and biochemical treatment are combined, and the device has the advantages of low investment and operation cost and is suitable for treating high-concentration organic waste liquid.

The utility model relates to an air conditioning system coupled with carbon dioxide capture. The air conditioning system comprises an air conditioning body, a carbon capture module and a carbon desorption module, an air conditioner air inlet and an air conditioner air outlet are formed in the air conditioner body; the carbon capture module is arranged in the air conditioner body and communicates with the air conditioner air inlet and the air conditioner air outlet. The carbon desorption module comprises a negative pressure pump, a gas storage tank and a purging pump which are communicated in sequence, an inlet of the negative pressure pump is communicated with an outlet of the carbon capture module, and an outlet of the purging pump is communicated with an inlet of the carbon capture module. Compared with the prior art, carbon dioxide enriched on the carbon capture module can be desorbed, the carbon dioxide capacity of the carbon capture module can be released, the purification effect of the carbon capture module can be ensured, gas in the gas storage tank can be recycled for air stripping, and the desorption cost can be saved.

The utility model discloses a TOC (Total Organic Carbon) analyzer utilizing ozone catalysis. The TOC analyzer comprises an air stripping pipe, a liquid inlet unit, a liquid inlet pump, an air pump, an ozone supply unit and a detector, the liquid inlet pump is used for communicating a liquid outlet of the liquid inlet unit with a liquid inlet in the bottom of the air stripping pipe; one end of the air pump is connected with an air pipe, and the other end of the air pump is communicated with the stripping pipe; a gas outlet of the ozone supply unit is communicated with the stripping pipe; the detector is used for monitoring the concentration of carbon dioxide in real time, and an air inlet of the detector is communicated with an air outlet in the top of the air stripping pipe. The ozone supply unit is arranged in the analyzer, sufficient ozone can be provided to fully oxidize a sample, organic carbon is oxidized and decomposed into carbon dioxide, and under the action of the ozone supply unit, when the analyzer is used for measuring TOC, the oxidation efficiency is high, the measured result is accurate, and the test effect is good.

The invention relates to the field of coal gasification high-ammonia-nitrogen sewage treatment, and particularly provides a coal gasification high-ammonia-nitrogen sewage treatment device and a coal gasification high-ammonia-nitrogen sewage treatment process. The device comprises an air stripping tank, the top of the air stripping tank is connected with an ammonia reaction tank, a water-gas separation box is arranged on one side of the air stripping tank and the ammonia reaction tank, and the top of the water-gas separation box is communicated with the inner side of the ammonia reaction tank; one side of the water-gas separation box is communicated with the interior of the air stripping tank, a speed reduction driving part is arranged on the upper portion of the interior of the air stripping tank, a compression convection group is rotationally connected to the interior of the air stripping tank, and an air blowing assembly is arranged at the bottom of the air stripping tank; circularly flowing sewage can be in complete contact with dense bubbles floating in a countercurrent manner and high-ammonia-nitrogen sewage through a compression convection group in the air stripping tank, and meanwhile, the flowing path of the bubbles and the sewage can be improved and the sewage can be divided into thin layers by utilizing embedding between a liquid separation spoiler and a composition plate; therefore, the contact fusion effect of sewage and bubbles is improved.

The invention discloses a waste incineration fly ash washing liquid calcium chloride extraction system which comprises an air stripping tower, a pH adjusting tank, a filter press, a second-effect forced circulation evaporator, a first-effect forced circulation evaporator, a DTB crystallizer, a drying machine, a single-effect forced circulation evaporator, a fluidized bed, an electrostatic separator, a heating furnace and three groups of centrifugal machines, the three groups of centrifugal machines are respectively a first centrifugal machine, a second centrifugal machine and a third centrifugal machine. The method has the advantages that interference of impurity ions on follow-up salt separation is reduced through deamination pretreatment, particle characteristics are improved through high-temperature drying, surface charges are optimized through low-temperature complexing, accurate separation of potassium, sodium and calcium salts is achieved through electrostatic separation, and carbon emission is reduced by combining an ammonia gas recycling technology.

The invention belongs to the technical field of comprehensive utilization of brine resources, and particularly relates to a brine iodine extraction system and process method based on an ozone oxidation and air blow-out method. The brine iodine extraction system comprises a brine pretreatment unit, an acidification and ozone oxidation unit, a multi-stage air stripping unit, an absorption and recycling unit and a tail gas purification unit, the multi-stage stripping unit comprises N stages of stripping towers which are connected in series stage by stage, each stage of stripping tower from the first-stage stripping tower to the N-stage stripping tower adopts a strategy of ozone segmented addition and temperature gradient regulation and control, and the gas-liquid ratio from the first-stage stripping tower to the N-stage stripping tower is reduced stage by stage in each stage of stripping tower; the absorption and recycling unit comprises a multi-stage absorption unit and an absorbent regeneration unit, the multi-stage absorption unit comprises M stages of absorption towers which are connected in series stage by stage, and the absorbent regeneration unit comprises an electrolytic regeneration system. The method is suitable for high-salt and low-iodine brine, is particularly suitable for industrial iodine extraction scenes of low-iodine-concentration and high-salinity brine, and integrates high efficiency, environmental protection property and economical efficiency.

This invention discloses an air-lift reflux anaerobic and intermittent MBR automatic switching wastewater treatment process, relating to the field of wastewater treatment. The wastewater treatment equipment automatically switches between three wastewater treatment modes based on the wastewater volume: AO+MBR, AO and MBR in parallel, and AO+membrane SBR intermittent operation. The wastewater treatment equipment includes an anaerobic tank, an intermittent MBR tank, and a sedimentation tank connected by valves. The anaerobic tank is equipped with a basket-type screen connected to the inlet pipe. The intermittent MBR tank is equipped with MBR membrane modules and an ultrasonic level gauge. The sedimentation tank is equipped with an overflow outlet. This invention operates with low energy consumption and employs A... The O+ membrane SBR operates intermittently, automatically every hour, and is idle when there is no water. When the water volume is too large, it automatically switches to AO+MBR mode, and the sedimentation tank starts automatically. It is suitable for decentralized rural sewage treatment with large water volume fluctuations, or sewage treatment (or pretreatment) in factories without connection conditions, as well as domestic sewage treatment in scenic spots and mobile boat berths. This invention uses an air lift reflux method to realize the reflux of nitrified liquid and the reflux of settled sludge. The remaining sludge is also refluxed using an air lift reflux method to realize sludge discharge. That is, the air lift reflux method of blower replaces the return water pump and sludge discharge pump in the traditional process, saving investment and simplifying operation and management.