198 results about "Clarifier" patented technology

The invention discloses a composite clarifying agent for alkali-free glass and a manufacturing method of an alkali-free glass substrate, and relates to the technical field of glass manufacturing, the composite clarifying agent for alkali-free glass comprises the following components by mass: 12-30% of ammonium chloride, 48-73% of sulfate, and 11-25% of calcium fluoride; the preparation method comprises the following steps: adding a composite clarifying agent accounting for 0.2-1.2% of the total weight of the glass raw material into the glass raw material, uniformly mixing to form a batch, and carrying out melting, molding, spraying, annealing, cutting, alkali cleaning and other processes on the batch to finally prepare the glass substrate. The prepared composite clarifying agent does not contain toxic substances such as arsenic oxide and antimony oxide, the glass substrate produced by using the clarifying agent not only has an excellent clarifying effect, but also can recycle SO2 and NH3 gas generated in the melting process, can effectively solve the quality problems such as micro-flaws on the surface of the glass substrate in the production process, and has a good application prospect. And the production cost can be reduced and the product quality can be improved.

The invention belongs to the technical field of glass, and particularly relates to high-light-transmittance glass and a preparation method of the high-light-transmittance glass. The raw materials comprise the following components in parts by weight: 20 to 30 parts of quartz sand, 15 to 18 parts of sodium carbonate, 8 to 10 parts of limestone, 5 to 7 parts of dolomite, 0.3 to 0.5 part of a clarifying agent, 0.2 to 0.3 part of a coloring inhibitor, 0.1 to 0.2 part of lithium carbonate, 0.05 to 0.1 part of titanium dioxide, 0.1 to 0.3 part of zirconium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of boron oxide, 0.3 to 0.5 part of nano silicon dioxide sol and 1 to 3 parts of a high-temperature-resistant agent; and 1-5 parts of a wear-resistant agent. The quartz sand, the sodium carbonate, the limestone, the dolomite, the clarifying agent, the coloring inhibitor, the lithium carbonate, the titanium dioxide, the zirconium oxide, the aluminum oxide, the boric oxide, the nano silicon dioxide sol, the high-temperature-resistant agent and the wear-resistant agent are used as raw materials, so that the prepared glass is high in light transmittance, and meanwhile, the performance requirements of high strength, low spontaneous explosion rate and the like are met.

The present application discloses a clarifier and a water purifier, and belongs to the technical field of sewage treatment. The clarifier and the water purifier are provided. The lower end of the clarifier is closed. A throat pipe is arranged in the clarifier from the center of the bottom of the clarifier. A first reaction chamber is arranged in the upper part of the throat pipe. An annular second reaction chamber is arranged around the first reaction chamber. The first reaction chamber is connected to the second reaction chamber from the top. The second reaction chamber is connected to a separation chamber from the bottom. A sludge discharge pipe is arranged on the side of the bottom of the separation chamber. The top of the separation chamber is connected to a water outlet weir. The sewage added with a medicament enters a cyclone reaction area of the water purifier, and then flows into the clarifier through a primary flocculation reaction and a preliminary suspended clarification area to perform a first-stage and a second-stage flocculation reaction, so that the clarity of the clean water obtained after the sewage treatment is improved. The problem that the existing water purifier can only perform a first-stage flocculation reaction on the sewage and the sewage treatment effect is poor is solved.

The invention discloses a mixing and clarifying tank, a liquid level adjusting method thereof and a nuclide recovery and extraction system, which can adjust the liquid level of a two-phase interface in an overflow chamber by adjusting the air pressure difference between the overflow chamber and a clarifying chamber through an air pressure adjusting assembly, thereby avoiding the increase of maintenance workload of the mixing and clarifying tank due to the increase of mechanical moving parts. The mixing and clarifying tank comprises a clarifying tank body and a liquid level adjusting device. A sealing top cover is arranged at the top of the clarifying tank body, and the clarifying tank body comprises a mixing chamber, a clarifying chamber and an overflow chamber which are sequentially communicated from front to back; the overflow chamber is defined by a front heavy-phase flow baffle, a rear sealing baffle and a sealing top cover. The liquid level adjusting device comprises an air pressure adjusting assembly. The air pressure adjusting assembly is arranged in the overflow chamber and used for adjusting the air pressure difference between the overflow chamber and the clarifying chamber so as to adjust the liquid level difference between the highest liquid level in the overflow chamber and the liquid level of the two-phase interface in the overflow chamber, and then the liquid level of the two-phase interface in the overflow chamber is adjusted to the target liquid level.

The invention discloses a thermal power plant desulfurization wastewater zero discharge treatment method, which comprises: S1, carrying out triple-effect flash evaporation concentration treatment on desulfurization wastewater so as to reduce the amount, and storing the concentrated liquid after concentration in a concentrated liquid box; and S2, treating the concentrated liquid obtained in the step S1 by adopting a triple box process, enabling the treated water to enter a clarification tank for gravity settling, enabling clear water at the upper part to overflow to a wastewater collection box, and discharging sludge generated at the bottom to a gypsum dehydration belt through a sludge discharge pump. According to the invention, twice reduction of desulfurization wastewater is realized through triple-effect flash evaporation concentration and a triple-box process, so that the amount of desulfurization wastewater needing to be treated by a flue gas bypass system is reduced, the problems of pipeline pollution and blockage and frequent fault of an atomizer in the treatment process are reduced, and the reduced wastewater can be stored in a wastewater collection box during deep adjustment of a unit, so that the treatment efficiency of the unit is improved. Zero discharge of the desulfurization wastewater is realized, chloride ions in the slurry of the desulfurization absorption tower are controllable after zero discharge of the desulfurization wastewater, and the risks of slurry poisoning and gypsum diarrhoea of the absorption tower are reduced.

The utility model provides a system for directly recycling wastewater of a medium-high pressure boiler. The system comprises a collecting and regulating tank, a heat exchanger, a coagulation clarifier, a multi-medium filter, an ultrafiltration system, a secondary reverse osmosis system, an EDI (Electronic Data Interchange) device, a mixed bed and a user high-purity water tank which are connected in sequence, the second-stage reverse osmosis system comprises a first-stage reverse osmosis system and a second-stage reverse osmosis system, the first-stage reverse osmosis system comprises a first-stage RO raw water tank, a precision filter and a first-stage RO device, effluent of the ultrafiltration system enters the first-stage RO raw water tank and then enters the precision filter to be filtered, and water produced by the precision filter is fed into the first-stage RO device; the second-stage reverse osmosis system comprises a second-stage RO raw water tank and a second-stage RO device, fresh water produced by the first-stage RO device is fed into the second-stage RO raw water tank and then enters the second-stage RO device, and fresh water produced by the second-stage RO device is fed into the EDI device to be treated. According to the utility model, a full-flow treatment system is developed aiming at the water quality condition of the wastewater of the medium-high pressure boiler, and the finished water can stably meet the water supply requirements of the medium-high pressure boiler.

The invention discloses a lime coagulation dosing device based on self-adaptive control and a use method, and belongs to the technical field of sewage treatment. The device comprises a raw material supply unit, a dissolving and mixing unit, a dosing execution unit, a monitoring sensing unit and a control center unit, the raw material supply unit is connected with one side of the dissolving and mixing unit, and the other side of the dissolving and mixing unit is connected with the clarification tank; the dosing execution unit is arranged on a pipeline between the dissolving and mixing unit and the clarification tank; the control center unit is connected with the dosing execution unit and the monitoring sensing unit; and the monitoring sensing unit is arranged in the clarification tank. The device synchronously responds to key indexes such as pH, turbidity and temperature, the dosage is automatically adjusted according to real-time data, manual intervention is reduced, and the equipment maintenance difficulty is reduced by accurately adding the dosage and reducing lime consumption and sludge yield.

The invention discloses equipment and a method for preparing a glass clarifying agent from arsenic trioxide, and belongs to the field of glass clarifying agents. A device for preparing a glass clarifying agent through arsenic trioxide comprises a supporting ring frame, a feeding assembly is fixedly installed on one side of the upper portion of the supporting ring frame, a motor is fixedly installed in the middle of the supporting ring frame, a linkage transmission assembly is installed on the lower portion of the supporting ring frame, and a stirring paddle used for ore dosing treatment is fixedly installed on the lower portion of the linkage transmission assembly. The stirring paddle comprises a second branch stirring paddle, the second branch stirring paddle comprises a stirring shaft used for conveying materials, a sliding plate is installed in the stirring shaft in a sliding mode through a spring, and a dredging rod used for dredging the stirring shaft is fixedly connected to the outer portion of the sliding plate; the sliding plate in the stirring shaft is matched with the dredging rod, self-inspection dredging is achieved through centrifugal force, and the blocking problem caused by accumulation of sediments such as sulfate and calcium sulfate is solved.

A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.

The invention provides a power plant sludge pump process control optimization method, and belongs to the technical field of power plant automation control. The sludge pump can at least partially solve the problems that the displacement cannot be accurately matched, the pipeline is easy to block, and the pump body is burnt out due to the fact that the control of the existing sludge pump depends on easily blocked pressure measuring points and unreliable manual flushing. The method comprises the following steps: acquiring a real-time liquid level of a clarification tank, and automatically starting sequence control when the liquid level reaches a high threshold value; in sequence control, effective flushing is ensured by monitoring the flow of flushing water; during the sludge pumping and discharging period, continuously monitoring the outlet flow of the sludge pump; and when the outlet flow is lower than an operation failure threshold value or the liquid level of the clarification tank is lower than a low threshold value, the pump stopping step is automatically executed. The automatic control system has the beneficial effects that closed-loop automatic control is realized by introducing the liquid level meter and the outlet flow meter, and a pressure measuring point which is easy to block is replaced by outlet flow monitoring, so that the problem that the pump body is burnt due to idling is fundamentally avoided.

The invention discloses a coal gasification black water multi-stage deep treatment device and method, and relates to the technical field of water treatment.The coal gasification black water multi-stage deep treatment device comprises a flash tank, a settling tank, a mixing and clarifying tank, a partition plate, an overflow opening, a mixing cavity, a clarifying and stirring mechanism, a pressing plate, a water inlet tank and a fixed bin, the two sides of the fixed bin are open, and an adjusting plate is clamped in the fixed bin and horizontally and freely slides in the fixed bin; a water storage space is defined by the adjusting plate, the fixed bin and the partition plate. According to the device, the pressing plate moves downwards, so that the pressing plate extrudes an extraction liquid in the mixing cavity, part of the extraction liquid enters the water storage space from the water inlet groove under the action of pressure, then along with downward movement of the pressing plate, the liquid level of the extraction liquid in the water storage space rises, and the extraction liquid flows into the clarifying cavity from the overflow port; after entering the water storage space, the extraction liquid loses the acting force of the stirring mechanism, so that a relatively large turbulence phenomenon is avoided, the extraction liquid can flow into the clarification cavity at a relatively low flow speed, and the clarification efficiency is prevented from being influenced.

The invention belongs to the technical field of thermal power plant circulating water and sewage pretreatment, and relates to a circulating water lime softening system and method based on seed crystal circulation and intelligent control. Comprising a raw water tank, a lime softening tank, a flocculation reaction tank, a clarification tank and a softened water tank, through the synergistic effect of the seed crystal reflux circulation and the intelligent control technology, the softening efficiency is remarkably improved, the medicament consumption and the sludge output are reduced, and the resource utilization of the calcium carbonate byproduct is realized; according to the system, through organic connection of the raw water tank, the lime softening tank, the flocculation reaction tank, the clarification tank and the softening water tank, accurate adding of lime, sodium carbonate, seed crystal and a flocculating agent is combined, and whole-process water quality on-line monitoring and intelligent regulation and control are matched, so that efficient softening treatment of circulating water blow-down water is realized, stable and up-to-standard effluent quality is ensured, and the quality of discharged water is improved. Meanwhile, the operation cost and the treatment effect are optimized.

This invention concerns an installation and method for treating a first stream (S1) of a colloidal suspension of water and ultra-fine particles and a second stream (S2) of heavy oil, both of which streams are derived from treating a flow of heavy crude oil or bitumen, to convert them into separate streams of clean water, clean oil, decanted solids and usable gases. The first stream (S1) is treated in a series of electro-kinetic reactors (20) operating by electrolysis / electro flocculation and water tank clarifiers (30) connected in parallel. The second stream (S2) is treated in ultrasound cyclone chambers (40). Released gas is collected from the tops of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Decanted solids are collected from the bottoms of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Clean water is collected from the water tank clarifiers (30). Clean oil is collected from the ultrasound cyclone chambers (40).

The present invention proposes a water treatment system that couples anoxic biofilters with artificial wetlands, belonging to the field of water treatment technology. The key technical points are: sewage is collected through a pipe network and flows into a water collection pool, and then enters a regulating / anoxic pool through a lift pump. The solid carbon source in the pool provides a carrier for microorganisms while achieving slow-release supplementation of the carbon source, thereby strengthening the denitrification reaction to remove total nitrogen. The system is then transported to a biofilter and a contact oxidation pool by a lift pump, and COD and ammonia nitrogen are removed through carbon oxidation and nitrification reactions. The effluent enters a high-efficiency clarifier, and after most of the total phosphorus and SS are removed through chemical phosphorus removal and coagulation and sedimentation, the overflow enters an artificial wetland, and is subjected to a comprehensive treatment of plant-microorganism-filler to deeply purify the pollutants and meet the discharge standards. Using the water treatment method of the present application, the effluent water quality can be improved to the Class B emission standard.

The invention discloses a treatment system for power plant wastewater recovery, which comprises a softening pretreatment assembly for removing impurities in wastewater, a clarification tank for treating suspended matters, a clean water tank for storing clean water, a membrane concentration assembly communicated with the softening pretreatment assembly, and a water supply assembly communicated with the membrane concentration assembly. The device is used for further improving the filtering effect on the wastewater and comprises a multi-medium filter for filtering impurities and a reverse osmosis device for desalting the wastewater. The power plant wastewater treatment system has the beneficial effects that some solid impurities in power plant wastewater can be filtered through the softening pretreatment assembly, the crystallization phenomenon in an existing wastewater treatment system is greatly reduced, the treated wastewater can be further filtered through the membrane concentration assembly, salt in the wastewater can be concentrated and separated, the discharge amount of strong brine is reduced, and the treatment cost is reduced. In addition, reverse osmosis produced water and reverse osmosis concentrated water produced by the reverse osmosis device can be respectively supplemented for boiler water and desulfurization water, so that the recycling rate of wastewater is increased.

The invention discloses a lime coagulation treatment effect real-time monitoring and regulation system and method based on multi-parameter fusion, and belongs to the technical field of water treatment. The system disclosed by the invention comprises a data acquisition and analysis module, a data processing and evaluation module, an intelligent regulation and control module, an execution mechanism and a coagulation clarifier, the acquisition and analysis module is respectively connected with a water inlet / outlet of the coagulation clarifier and the reaction area; the acquisition and analysis module is electrically connected with the data processing and evaluation module, the intelligent regulation and control module and the execution mechanism in sequence; and the executing mechanism is arranged in the coagulation clarifier. According to the system disclosed by the invention, all the modules and parts have a synergistic effect, so that the technical problem that an existing monitoring system lacks multi-parameter coupling analysis and intelligent decision-making capabilities is solved.

The utility model belongs to the technical field of energy utilization, and relates to a water-saving desulfurization wastewater treatment device which comprises a wet desulfurization system, a double-alkali softening device, a clarification tank, an ultrafiltration device, a primary nanofiltration device, a secondary nanofiltration device, a reverse osmosis device and a crystallization device. The desulfurization wastewater is fed into a double-alkali softening device, is subjected to acid-alkali neutralization by sodium hydroxide and heavy metal removal, and is fed into a clarification tank after calcium and magnesium ions are removed by sodium carbonate; wastewater in the clarification tank is filtered by the filtering device and then fed into the primary nanofiltration device, concentrated water discharged by the primary nanofiltration device is mixed with part of water produced by the reverse osmosis device and then fed into the secondary nanofiltration device, and water produced by the primary nanofiltration device and the secondary nanofiltration device is fed into the reverse osmosis device. The water produced by the reverse osmosis device is mixed with the concentrated water discharged by the first-stage nanofiltration device, the residual water and the concentrated water discharged by the second-stage nanofiltration device are sent to a wet desulphurization system for recycling, the concentrated water discharged by the reverse osmosis device is sent to a crystallization device, and after crystallization and evaporation, the main component is collected as a sodium chloride solid.

The present invention relates to a preparation method and a preparation device for ultra-thin rolled glass for solar cells. Compared with the existing rolled glass preparation technology, the present invention targets the particularity of ultra-thin rolled glass for solar cells, conducts technical innovations in multiple processes, and forms a brand-new ultra-thin rolled glass preparation technology. Specifically, it includes: in the glass component selection and batching process, optimizing the design of glass components to improve the impact resistance of ultra-thin rolled glass; in the melting and clarification process, improving the clarifier formula and setting the melting furnace combustion atmosphere to an oxidizing atmosphere to achieve efficient melting and clarification of the glass liquid; in the forming process, adopting a multi-stage rolling forming process to achieve the forming of ultra-thin glass ribbons with small thickness differences; in the annealing process, adopting an annealing process that finely controls the temperature of each annealing area and accurately controls the cooling rate of the glass ribbon to achieve precise annealing of the ultra-thin rolled glass ribbon. The ultra-thin rolled glass produced by the present invention has the advantages of small thickness difference, high impact resistance, and high transmittance.

Belonging to the technical field of chemical processing, the invention discloses a desulfurization and thallium removal process purification system for thallium-containing flue gas, which comprises an absorption tower system, a flue gas condensation cooling system, a thallium removal system, and a gypsum generation and dehydration system. The absorption tower system consists of a booster fan, an absorption tower and a slurry circulating pump; the flue gas condensing and cooling system consists of a washing tower, a circulating water pump, a heat exchanger and a wet power supply; the thallium removal system consists of an absorption tower solution discharge pump, a thallium removal solution buffer tank, a clarifier I, a thallium-containing sludge conveying pump, a plate-and-frame filter press I and a condensate water conveying pump; and the gypsum generating and dehydrating system consists of a calcium hydroxide dosing tank, a sodium carbonate dosing tank, a clarifier II, a clear water tank, a sludge conveying pump, a plate-and-frame filter press II, a filtrate water pump and a clear water pump. According to the desulfurization and thallium-removal process purification system for the thallium-containing flue gas, the technological process is mature in technology, and operation is safe and reliable; the cost is low, and the cost performance is high.

The utility model belongs to the technical field of sewage treatment biological denitrification equipment, and particularly relates to an up-flow type sewage internal carbon source conversion and storage reaction device which comprises a reaction device body, a baffling partition plate is arranged in the reaction device body, a water distribution tank is arranged between the baffling partition plate and the reaction device body, and a water inlet pipe is communicated with the water distribution tank. The water distribution tank and the water inlet pipe are arranged at the top of the reaction device body; a water outlet is formed in the water distribution tank; a bottom reflecting baffle is arranged at the bottom of the reaction device body; a sludge discharge pipe is arranged on the reaction device body at one end of the bottom reflecting baffle; an integrated clarifier with a closed bottom is arranged on the other side of the baffling partition plate, a bottom sludge collector is arranged in the integrated clarifier and communicated with a sludge pipe, and a drainage pipe is arranged on the side wall close to the upper part of the integrated clarifier; a sludge distributor is arranged on the inner side wall of the baffling partition plate, a sludge inlet pipe and a sludge outlet pipe are arranged on the sludge distributor, and a plurality of overflowing holes are formed in the sludge distributor and the bottom reflecting baffle plate. The sewage treatment cost is effectively reduced, and the treatment process is optimized.

The invention relates to a backwash device for a coal-containing wastewater centrifugal clarifier and a control method thereof, the device comprises a reuse water tank, the reuse water tank is connected with a centrifugal clarifier backwash water pump, the centrifugal clarifier backwash water pump is connected with a centrifugal clarifier backwash water pump electric water inlet valve, and the centrifugal clarifier backwash water pump electric water inlet valve is connected with the reuse water tank. One end of a centrifugal clarifier backwashing water pump electric water inlet valve is connected with a backwashing channel, one end of the backwashing channel is arranged in a centrifugal clarifier, the centrifugal clarifier is connected with an electronic flocculator through a centrifugal clarifier electric water inlet valve, and the centrifugal clarifier is connected with a middle water pool through a centrifugal clarifier electric water outlet valve. And a turbidity meter is arranged at the outlet of the middle water tank. Compared with the prior art, the centrifugal clarifier has the advantages that impurities attached to the inner wall of the centrifugal clarifier and filler are removed, and the treatment effect of the centrifugal clarifier is improved.

A system for preventing ammonium sulfate blockage in caprolactam production comprises an elutriator and an amide oil storage tank, the elutriator is communicated with the upper portion of the amide oil storage tank through a second delivery pump, and the amide oil storage tank is communicated with a benzene extraction tower through a middle lower discharge pipeline connected with a fourth delivery pump. The lower part of the amide oil storage tank is communicated with the crystallizer through a third delivery pump, and the treatment system is characterized in that the treatment system comprises a first benzene injection pipe arranged between the elutriator and the second delivery pump and / or a second benzene injection pipe arranged between the second delivery pump and the amide oil storage tank; and benzene enters the second delivery pump through the first benzene injection pipe and / or benzene enters the amide oil storage tank through the second injection pipe. The utility model has the advantage that the problem that the pipeline is blocked due to ammonium sulfate crystallization precipitation when the amide oil is extracted can be solved.

The present invention relates generally to systems and methods for assessing submerged structures and cleaning of submerged structures of waste collection systems such as, but not limited to, sewers, sumps, wet wells, collection tanks, digesters, clarifiers, classifiers, and the like. The systems and methods may be used to determine one or more chemical and / or physical properties in a water storage facility vessel or a water treatment facility vessel and then use such one or more chemical and / or physical properties to determine where and how much, if any, sand or other sediment may need to be removed and to assist in its removal. In an embodiment, all or part of the systems and / or methods may be carried out remotely.

This invention provides a clarifier for black and odorous water bodies, its preparation method, and its application. The preparation method includes the following steps: thoroughly mixing a polyacrylamide solution with a carrier at a mass ratio of polyacrylamide to carrier of 1:99 to 5:95; granulating, drying, grinding, and sieving to obtain a solid; and compounding the solid with the carrier to obtain the clarifier for black and odorous water bodies. The carrier is one or more of bentonite, diatomite, and kaolin that has passed through a 200-mesh sieve. In this invention, fine particles such as bentonite, diatomite, and kaolin are added to the prepared low-concentration polyacrylamide solution. After thorough mixing, granulation, drying, and grinding, the polyacrylamide forms a thin film on the surface of the bentonite, diatomite, and kaolin, which can be quickly dissolved in water. Therefore, the clarifier for black and odorous water bodies provided by this invention does not require pre-dissolution and can be directly added as dry powder to wastewater, making it more convenient and cost-effective.

A granular activated carbon (GAC) reactivation waste product enhanced activated sludge system for removing PFAS from a flow of wastewater and / or landfill includes at least one bioreactor including biomass to receive the feed water and to promote growth of biological flocs, and an impregnation subsystem to receive a flow of biomass and a predetermined amount of GAC reactivation waste product and to blend the biomass with the GAC reactivation waste product to form GAC reactivation waste product-impregnated biological flocs. The impregnation subsystem outputs a flow of GAC reactivation waste product-impregnated biological flocs to the bioreactor such that the GAC reactivation waste product-impregnated biological flocs in the bioreactor adsorb to and remove the PFAS from the treated water, and the bioreactor outputs a flow of GAC reactivation waste product-impregnated biological flocs and treated water. The system also includes at least one secondary clarifier coupled to the bioreactor which separates the GAC reactivation waste product-impregnated biological flocs from the wastewater and / or landfill leachate and produces a flow the treated water.

The present invention provides a wastewater denitrification device and a denitrification method, belonging to the technical field of wastewater denitrification. The device includes an anaerobic tower, an anoxic tank, an aerobic tank, a clarifier, a biological desulfurization filter, a methane dissolution tank, a methane anaerobic denitrification tank, a filtering device, and an aerated biological filter, which are connected in sequence through liquid pipelines. The biological desulfurization filter is divided into two stages; the anaerobic tower, the first-stage biological desulfurization filter, and the methane dissolution tank are connected in sequence through gas pipelines. This system can purify the biogas generated in the traditional wastewater anaerobic treatment system and utilize it for biological denitrification, without the need for additional carbon source addition, and realizes the screening, purification, and enrichment of methane anaerobic denitrifying bacteria, improves the effect of wastewater denitrification, reduces the operation cost, is applicable to the denitrification treatment of high-ammonia-nitrogen wastewater with a low carbon-nitrogen ratio, and can completely replace the deep denitrification system at the back end of the traditional A / O process.

The utility model discloses a water supply and drainage sewage clarification device which comprises an inner cylinder and an outer cylinder, a sedimentation assembly is installed at the bottom of the inner cylinder and the bottom of the outer cylinder, the sedimentation assembly comprises a first conical hopper and a second conical hopper, a deslagging assembly is installed on the inner side of the first conical hopper and the inner side of the second conical hopper, and the deslagging assembly comprises a discharging valve and an inclined baffle. The water supply and drainage sewage clarification device comprises an inner barrel and an outer barrel, an inlet and outlet assembly is installed on the inner barrel and the outer barrel, the inlet and outlet assembly comprises an inlet pipe and an outlet pipe, valve assemblies are installed on the inner barrel and the outlet pipe, and each valve assembly comprises a valve and an electromagnetic valve. The situation that solids with low settling speed cannot be effectively settled due to interference of water flow is avoided, the solid-liquid separation effect is guaranteed, the situation that sewage generates large impact force in the outer barrel is avoided, settled sludge is further prevented from being mixed with the water flow, the inclined baffle is used for forming isolation at the bottoms of the outer barrel and the inner barrel, and the separation efficiency is improved. The device is suitable for sewage clarification operation of water supply and drainage projects.

A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.

The invention discloses a wastewater treatment system and method, and belongs to the technical field of wastewater treatment methods, the wastewater treatment system comprises: a wastewater buffer module for buffering wastewater; the evaporation and concentration module comprises a concentration tower and a clarifier, and the buffered wastewater flows into the concentration tower and forms spray-shaped wastewater; the concentration tower also absorbs the flue gas and exchanges heat with the spray-shaped wastewater, water vapor generated by the wastewater is discharged from the concentration tower, the generated concentrated solution flows into a clarifier, and the clarifier performs solid-liquid separation on the concentrated solution to obtain supernate and sludge; the drying and curing module comprises a drying tower, the drying tower receives the supernate and also absorbs the flue gas for heat exchange, mixed gas generated by the supernate is reconverged into the flue gas and circularly enters the concentration tower, and generated solids are discharged from the drying tower. The evaporation and concentration module and the drying and curing module are combined for repeated absorption, so that the effects of deep decrement and thorough curing are achieved.

The application provides a system and method for treating wastewater by using flue gas CO2 and electrochemical dehardening and sterilization, wherein the system comprises an electrochemical treatment device, an ultrasonic descaling device, a conical sedimentation tank and a flue gas treatment device. The electrochemical treatment device is internally provided with a cathode and an anode; the ultrasonic descaling device is installed in the electrochemical treatment device; the conical sedimentation tank is located below the electrochemical treatment device, and is internally provided with an inclined tube clarifier and is provided with a residue discharge port at the bottom; and the flue gas treatment device comprises a flue gas pipe and a fan, the flue gas pipe is connected to the fan and extends into the lower part of the electrochemical treatment device, and a plurality of aeration holes are formed in the wastewater contact section of the flue gas pipe. The system can quickly and efficiently supplement CO3 2‑ in the wastewater on the one hand, and can maintain the water quality of the electrochemical treatment system in weak acidity, so that a high concentration of HClO is generated in the water, thereby having a significant sterilization effect. 2+ The system can improve the Ca 2+ and Mg precipitation removal effect of the wastewater, and can maintain the water quality of the electrochemical treatment system in weak acidity, so that a high concentration of HClO is generated in the water, thereby having a significant sterilization effect.