32 results about "Settling basin" patented technology

The invention provides sludge and sewage resource utilization integrated equipment and a treatment method.The sludge and sewage resource utilization integrated equipment comprises a settling pond and a dewatering box, a sludge transfer device is arranged between the settling pond and the dewatering box, and the sludge transfer device comprises a negative pressure suction device located in the settling pond; the discharging device is located at the top of the dewatering box, the concentration conveying assembly is located between the negative pressure suction device and the discharging device and comprises a concentration conveying body, a first connector, a second connector and a third connector which are arranged at intervals are arranged on the side wall of the concentration conveying body, and the negative pressure suction device is communicated with the second connector. The discharging device is communicated with the third connector, and a first spiral conveying blade is arranged in the concentration conveying main body. The concentration conveying assembly and the dewatering box are designed in a compact and integrated mode, re-transferring in multiple structures is not needed, and the sludge and sewage treatment device is simple, efficient, good in sludge and sewage treatment effect and high in treatment efficiency.

The application provides a sedimentation tank flocculation sedimentation control method and device, electronic equipment and storage medium, including: obtaining raw water quality target parameters; based on the raw water quality target parameters, feature extraction and noise reduction processing are performed through an adaptive mode decomposition algorithm to obtain a feature vector; the feature vector is processed by using an extreme learning machine model optimized by an improved genetic algorithm to obtain a coagulant dosage prediction value; based on the coagulant dosage prediction value, coagulant is added to the raw water, and the operating parameters of the sedimentation tank are monitored; based on the operating parameters, the dry sludge amount in the sedimentation tank is determined through a dry sludge amount model; if it is determined that the sludge discharge condition is met based on the dry sludge amount and a pre-set sludge level threshold value, sludge is discharged; the effluent turbidity of the sedimentation tank is monitored in real time during the sludge discharge process, and the coagulant dosage is dynamically adjusted based on the effluent turbidity through the adaptive mode decomposition algorithm. In this way, the coagulant dosage accuracy and process synergy are improved, and the sedimentation tank is discharged on demand.

The application discloses an environment-friendly sludge pre-precipitation device for dredging, and belongs to the technical field of environment-friendly dredging, which comprises a sand settling basin, and further comprises: a water inlet pipe and a water outlet pipe; a supporting plate, a rotating shaft is rotatably arranged on the supporting plate through a bearing, a plurality of height-adjustable impellers are arranged on the rotating shaft; a fixing mechanism for limiting and fixing the impellers adjusted to different heights; in the scheme, the sludge sewage flows into the sand settling basin from the tangent direction of the inner wall of the sand settling basin, and a cyclone is formed along the inner wall; the driving mechanism drives the rotating shaft and the impeller to rotate, so that the sludge sewage flows spirally, the separation of organic matters and sand particles is promoted, the separation efficiency is accelerated, and the subsequent processing period is reduced; the fixing of the impeller by the fixing mechanism is released, then the impeller can be driven to move up and down to adjust the position, the position of the impeller can be adjusted according to the different sand settling treatment requirements of the sand settling basin, and the separation effect of the sand particles from the organic matters and water is better.

The utility model relates to sewage treatment technical field, concretely is a kind of sedimentation tank with anti-blocking function, it includes pool body and central tube, the position of central tube near bottom is equipped with aeration unit, the aeration unit includes aeration assembly and aeration pipe, aeration pipe is arranged between aeration assembly and central tube, and the aeration gas stream released when aeration assembly periodic operation enters central tube to carry out water flow disturbance by aeration pipe;That is, the disturbance water flow formed by aeration gas stream in central tube solves the problem of central tube blockage, without manual cleaning, without setting complex filter device, in addition, the aeration unit of the scheme only as auxiliary flushing unit periodic operation, therefore, the influence to the sedimentation environment of sedimentation tank is less;Visible, the sedimentation tank of the structure of the scheme has the advantages such as high operating efficiency and long service life, and maintenance cost is also reduced and operation process is simplified, has wide application prospect and economic benefits.

The present application provides a kind of sedimentation tank sludge quantity prediction system and method, it is related to sedimentation tank sludge control technical field, comprising: for each sedimentation period of sedimentation tank, at least one group of historical water inlet parameters and corresponding historical sludge-water interface height in non-sludge discharge period are obtained respectively, and total actual sludge production after sludge discharge period ends and corresponding total sludge-water interface height;According to each historical sludge-water interface height, total actual sludge production and total sludge-water interface height, the real-time actual sludge production corresponding to historical water inlet parameters is obtained by processing;Real-time water inlet parameters are obtained as input, and the sludge quantity prediction model corresponding to the real-time actual sludge production as output is trained;A group of real-time water inlet parameters of sedimentation tank in non-sludge discharge period is obtained, and real-time water inlet parameters are input into sludge quantity prediction model, to obtain the sludge quantity prediction result of sedimentation tank.The beneficial effect is that the real-time sludge production of sedimentation tank can be effectively predicted;Self-adaptive training and correction of sludge quantity prediction model can be realized.

A sedimentation tank for sewage treatment comprises a sedimentation tank body, a T-shaped water pipe and a material mixing assembly, the sedimentation tank body is communicated with the T-shaped water pipe, the material mixing assembly comprises a feeding assembly, a flow control assembly, a damping power assembly and a power transmission assembly, and the feeding assembly is arranged on the side face of a discharging part of the T-shaped water pipe and communicated with the discharging part of the T-shaped water pipe; the flow control assembly is arranged on the feeding assembly, the execution tail end of the flow control assembly is matched with the discharging end of the feeding assembly, the damping power assembly is matched with the tail end of the feeding portion of the T-shaped water pipe, one end of the power transmission assembly is matched with the power input end of the flow control assembly, and the other end of the power transmission assembly is matched with the power output end of the damping power assembly. The discharging amount of a flocculating agent can be controlled by arranging the flow control assembly, the flowing speed of sewage can be converted into power by arranging the damping power assembly, and the discharging amount of the flow control assembly is controlled by the flowing power of the sewage through the power transmission assembly, so that the mixing proportion of the sewage and the flocculating agent can be ensured by the mixing assembly; the sedimentation efficiency of the sedimentation tank is improved.

A system used for contaminant control has a container with a mixing well portion and a settling tank portion. Wastewater entering the system is conveyed from a water inlet into the mixing well portion, where sediment or contaminants can be removed from the wastewater. The wastewater is moved to a settling tank portion, where additional sediment or contaminants are removed by settling to the bottom of the tank. A weir positioned at a top surface of the settling tank portion removes clarified water from the system. The settled sediment or contaminants can be removed from a sludge piping system. A flocculant additive system and lamella separators can also be used to assist settling processes. Further, a recirculation system can be used to reintroduce settled contaminants into the mixing well portion to increase efficiency of the system.

This invention discloses a rod mill sand-making method, comprising the following steps: S1, setting the control priority of the control module; S2, system startup, with the ore particle size detection mechanism continuously monitoring the ore particle size value on the discharge mechanism; the slurry conveying mechanism operates according to the detection value of the liquid level detection mechanism, maintaining the liquid level in the slurry settling tank within the normal range H3; S3, when the detection value of the ore particle size detection mechanism is less than the lower limit of the qualified range H2, the control module causes the feeding mechanism to feed in stages at multiple levels with progressively decreasing feed rates G; when the detection value of the ore particle size detection mechanism is greater than the upper limit of the qualified range H2, the control module causes the feeding mechanism to feed in stages at multiple levels with progressively increasing feed rates G. A rod mill sand-making system is also disclosed. This rod mill sand-making method and system reduce water waste, improve the stability of the output sand particle size and production quality, and meet the dual requirements of improving production quality and saving water.

The two-way switching system and its operating method for a sewage treatment plant includes an inlet basin connected to a dry season treatment system and a wet season treatment system, respectively. The dry season treatment system includes a fine-coarse mixing grate connected in series to a settling basin, a membrane grate device, an AAO combined basin, an MER reaction basin, and a first UV disinfection tank. The wet season treatment system includes a self-cleaning grate connected in series to a flow control valve, a combined flow regulation reservoir, a magnetic sedimentation system, a fiber rotary disk filter, and a second UV disinfection tank. The inlet basin is equipped with a liquid level sensor, a sludge concentration sensor, and a flow rate sensor. A selector valve is installed in front of the self-cleaning grate, and the liquid level sensor, sludge concentration sensor, and flow rate sensor are connected to a control unit.

This utility model belongs to the field of wastewater treatment, and in particular, it is a sedimentation tank with a buffer structure. Addressing the problem that existing sedimentation tanks suffer from sludge impacting the bottom structure, causing settled sludge to float a second time, and that sludge easily forms caking due to concentration gradient changes during sedimentation, affecting solid-liquid separation, the following solution is proposed: It includes a sedimentation tank and a stirring assembly. The sedimentation tank has a discharge pipe at the bottom and an opening at the top. A cross-shaped support plate is bolted to the top of the sedimentation tank. A conical cover is fixedly connected to the bottom of the cross-shaped support plate, and a flared pipe is fixedly connected to the bottom of the conical cover. A feed pipe with a 15° upward inclination is installed on the side wall of the flared pipe and sealed with a flange. In this utility model, through the synergistic effect of a multi-stage buffer structure and a low-speed anti-caking device, a breakthrough improvement in sedimentation tank performance is achieved. A dual buffer system consisting of a flared pipe and a conical block is adopted, and the anti-caking system uses a variable-speed stirring mechanism driven by a servo motor.

The utility model belongs to the technical field of sedimentation tank, concretely is a kind of sedimentation tank overflow port, including the well type overflow cylinder body of bottom end intercommunication drainage channel, and it includes: the well type overflow cylinder body top inlet is flared mouth shape and in the peripheral floating of inlet, annular floating plate connected with the annular floating plate that prevents surface water directly into inlet is equipped with.The annular floating plate is equipped with the cylindrical structure that extends below waterline, the gap between the cylindrical structure and well type overflow cylinder body forms the passage that sedimentation tank water flow enters inlet, the edge of inlet is broken line top edge, annular floating plate can adaptively slurry density change, always float in surface layer, effectively block the lightweight impurities with density less than quartz sand.Horn mouth design reduces the water inflow velocity to 0.1-0.3m / s, avoid disturbing already settled quartz sand layer.The structure is especially suitable for quartz sand washing process, can reduce the loss of useful quartz sand about 15%, improve raw material recovery rate.

The present application relates to the technical field of sand discharge of sand settling basin, and discloses a vortex type sand settling basin sand discharge port anti-clogging regulation and control device and method, which comprises a vortex type sand settling basin main body provided with a sand discharge port main body at the bottom, further comprising: a shell, the main body is fixed inside the straight cylinder section through a support rod, a main shaft is arranged in the center of the shell, driving blades and clogging clearing blades are arranged at the two ends of the main shaft respectively, a support is arranged on both sides of the shell, impact hammers are arranged on the bottom of the support through pressing plates, limit supports are arranged below the pressing plates, gears are arranged on one side of the limit supports, racks meshing with the gears are arranged on both sides of the shoulder, and a vibrating anvil is arranged at the bottom end of the shell. The automatic continuous clogging clearing is realized by using the vortex water flow, the threefold synergistic effect of automatic blocking and yielding, mechanical vibration and auxiliary water flow scouring can effectively prevent the mud cake and large particle impurities from being stuck, the dredging is complete and stable, and the device can automatically reset.

The utility model relates to a settling and filtering treatment device for dyeing wastewater. The settling and filtering treatment device sequentially comprises a pretreatment unit and a settling unit from left to right, the pretreatment unit sequentially comprises a coagulating basin and a flocculation basin from left to right; the sedimentation unit sequentially comprises a first sedimentation tank and a second sedimentation tank from left to right; and a filtering assembly is detachably mounted in the drainage pipe. According to the utility model, through the coagulation and flocculation treatment of the pretreatment unit in sequence and the secondary sedimentation of the sedimentation unit in sequence, impurities entering the drainage pipe can be greatly reduced, and the treatment effect of wastewater is improved.

The application discloses an oxidation ditch flow state sedimentation method, which is applied to an oxidation ditch flow state and comprises a sedimentation unit and a pushing device, and at least two stages of solid-liquid separators are arranged at intervals in the sedimentation unit; the specific steps are as follows: the oxidation ditch flow state is pushed by using the self-flow velocity of the oxidation ditch flow state or by the pushing device, so that a certain circulation velocity of the oxidation ditch flow state is generated; the sludge liquid with a certain flow velocity is separated layer by layer through the solid-liquid separators in the sedimentation unit, a circulation is formed in the cavity region between adjacent solid-liquid separators, and the particle content of the sludge liquid to the next stage of solid-liquid separator is reduced; the supernatant is discharged through the effluent weir of the sedimentation unit, the organic matter sludge liquid is backflowed to the sedimentation tank through the solid-liquid separator, and solid-liquid separation is realized; the oxidation ditch flow state is originally proposed in the method, and a high-efficiency sedimentation method is provided for the oxidation ditch flow state; compared with the traditional fixed and static sedimentation, the surface load is at least 2 m 3 / ㎡h.

The present invention relates to a method and apparatus for purifying iron and manganese in industrial and natural water by oxidizing the contaminants with ozone and then filtering. The method includes treating the water with ozone by mixing the water with ozone in an eductor. The water and ozone are then mixed in a static mixer. The water is then sent to a settling basin for sludge settling. The water is sent from the settling basin to a filter that uses at least one disc filter having a filter precision of no less than 20 microns. The water is then subjected to tangential microfiltration using a cross-flow method. The result is effective non-chemical purification of the water while minimizing the cost of the purification process and equipment maintenance.

An erosion prevention and sedimentation control flow-regulation device and system is provided for all customary applications addressed by conventional filtration devices such as check-dams (ditch check, channel or culvert), inlets (curb and ground), slope (hillside), perimeter control and settling and other ponds. The flow-regulation device and system is comprised of two components: (1) a heavy, irregular-shaped, hard-wearing, non-filtering, high-porosity fill media encapsulated in a heavy-duty, high-tensile mesh (the ‘high-porosity particle mix component’), and (2) an optional sheet-like synthetic geotextile material with limited permeability (the ‘low-permeability choker component’). The high-porosity particle mix component allows much larger flows of water through the device and system. The low-permeability choker component constricts or ‘chokes’ the flow of water into the high-porosity particle mix component. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

The application discloses a state interval estimation method for activated sludge treatment process based on an interval observer. Considering a large amount of uncertainty existing in a sewage treatment process, the application studies state interval estimation of an activated sludge system composed of an aeration tank and a sedimentation tank. Firstly, a mathematical model is established for a dynamic process of activated sludge reaction. Secondly, a T-S (Takagi-Sugeno) fuzzy method is used to perform pseudo-linearization processing on the established nonlinear model, so that a T-S fuzzy system is obtained, and the complexity of the model is reduced. Finally, an interval observer is designed for the T-S fuzzy model, the interval observer has interference robustness, and through the interval observer, the upper limit and the lower limit of the state of the activated sludge treatment process can be estimated, thereby providing a new thought and method for state monitoring of the activated sludge treatment process.

The utility model belongs to the technical field of sewage treatment, in particular relates to a sludge pre-sedimentation device with intelligent monitoring and adjusting functions, and provides the following scheme aiming at the problems that the existing sludge pre-sedimentation device cannot clean sludge in time, the sedimentation effect is reduced when the sludge pre-sedimentation device is continuously used, and the sedimentation of the sludge is influenced in the water flowing process: the sludge pre-sedimentation device comprises a sedimentation tank, the bottom of the sedimentation tank is conical, the outer wall of the sedimentation tank is communicated with a water inlet pipe for feeding water, and the outer wall of the sedimentation tank is communicated with a water discharge pipe for discharging water; a guide cylinder is fixedly arranged at the bottom of the sedimentation tank in a penetrating mode, the outer wall of the top end of the guide cylinder is rotationally sleeved with a rotating ring, efficient sedimentation, intelligent monitoring and automatic adjustment discharging of sludge are achieved through the unique design of the device, the device improves the sludge treatment efficiency and precision, the difficulty and cost of manual operation are reduced, and the device is suitable for popularization and application. Meanwhile, remote monitoring and management are achieved through an intelligent control system, and the stability and reliability of the device are enhanced.

The utility model relates to the technical field of devices for treating drilling fluid outside a borehole, in particular to a slurry circulating system. The slurry circulating system comprises a diversion trench, a slurry stirring pool and a slurry pump, the diversion trench is communicated with a storage pool and the slurry stirring pool, the diversion trench comprises a diversion trench front area and a diversion trench rear area, a slurry filtering device is arranged between the diversion trench front area and the diversion trench rear area, and a slurry settling pool is arranged between the diversion trench front area and the slurry filtering device; the mud filtering device is a filter screen, the lower portion of the filter screen is a sediment blocking part, the upper portion of the filter screen is a mud filtering part, and the mesh number of the mud filtering part is smaller than that of the sediment blocking part. The slurry circulating system can filter slurry entering the slurry stirring pool, reduces blockage of the slurry gun, ensures that the slurry is fully stirred and mixed, improves the uniformity of the slurry, shortens the circulating maintenance time, and improves the overall production efficiency.

The utility model discloses an industrial cleaning tank with a sedimentation tank, which comprises a tank body, an inclined surface arranged at the top, three drainage holes arranged in a linear form at the bottom, a load-bearing filter plate arranged on a sedimentation platform or a foldable bearing plate, a surface provided with 5-10mm filter holes and a flange, a sedimentation tank with a converging inclined ramp type sedimentation space, a drainage outlet higher than the bottom wall of the sedimentation space by 1-3cm, universal wheels with brake devices arranged at the bottom of the sedimentation tank to support the movement of the sedimentation tank, clean wastewater introduced into the sedimentation tank through the drainage holes to realize upper cleaning and lower sedimentation, convenient replacement and maintenance, a slope structure to automatically converge solid sediment to a slag discharge port, the load-bearing filter plate placed on the sedimentation platform to facilitate cleaning by the user, improved convenience, solved the problem of bending work, a transparent observation window cooperating with a scale line to monitor the sedimentation amount in real time, improved cleaning efficiency and reduced maintenance cost.

The utility model provides a construction site sewage treatment system which comprises a drainage channel, the upstream end of the drainage channel is connected with a water distribution channel through a water inlet channel, the rear end of the water distribution channel is sequentially connected with a first-stage desilting basin, a second-stage desilting basin and a third-stage desilting basin, and the third-stage desilting basin is connected with the downstream end of the drainage channel; the silt wastewater is discharged or reutilized after being subjected to silt sedimentation, so that water and soil loss and silt pollution are effectively avoided, and meanwhile, the effects of saving water resources and protecting the environment are achieved.

The invention discloses a system for adjusting collection and transfer of sludge in a sedimentation tank. The system comprises a sludge homogenizing and pushing system, a sludge transfer and conveying system and an electric control system, the sludge homogenizing and pushing system is arranged on one side of the bottom of the adjusting sedimentation tank in the length direction of the adjusting sedimentation tank, the sludge transferring and conveying system is arranged along a bottom mud groove of the adjusting sedimentation tank and is in butt joint with the pushing tail end of the sludge homogenizing and pushing system, and the electric control system is installed in a control machine room beside the adjusting sedimentation tank. And the sludge conveying system is electrically connected with the sludge homogenizing and pushing system and the sludge transferring and conveying system through cables. The sludge separation and transfer efficiency is remarkably improved, the mode of'primary collection of a direct pushing machine and secondary grading collection of a bidirectional sludge collection machine 'is adopted, no sludge scraping dead angle exists, the efficiency is improved by 30-50% compared with that of traditional single-stage collection equipment, and the sludge separation rate is larger than or equal to 99%.

The utility model relates to the technical field of hydrogenation catalyst processing, in particular to a device for cleaning slag slurry in a sedimentation tank, which is characterized in that the bottom end of an open cylinder is connected with a supporting mechanism, an opening of the open cylinder is connected with a sealing plate, the sealing plate is communicated with a discharge pipe, and one end of the open cylinder is fixedly connected with a speed reducing motor; the output end of the gear motor extends into the open cylinder and is fixedly connected with a stirring part, the upper end of the open cylinder is communicated with a liquid injection pipe and a feeding pipe, a plurality of activated carbon particles are arranged in the open cylinder, and the sealing plate is connected with a filtering mechanism. Solvent oil is guided into the open cylinder through the liquid injection pipe, the stirring piece is driven to rotate after the gear motor is started, the stirring piece stirs the solvent oil, slag slurry and activated carbon particles after rotating, the viscosity of the slag slurry is reduced after the solvent oil and the slag slurry are mixed, and the fluidity is improved; catalyst particles in the slag slurry are in better contact with active carbon particles, so that the separation effect of the catalyst particles is improved.

A settling basin of a wastewater treatment system, the settling basin comprises a collector chain for driving a plurality of flights through the settling basin, the collector chain including chain links comprising a plurality of side bars including a plurality of inner pairs of side bars and a plurality of outer pairs of side bars, and connecting pins configured to join the plurality of side bars, each connecting pin including a first end and a second end on an opposite end of the connecting pin from the first end, and flanged rollers disposed on the connecting pins between the first ends and second ends.

The utility model relates to wastewater treatment equipment technical field, concretely relates to a kind of printing and dyeing wastewater recovery device, including pool body, first baffle and second baffle are equipped in pool body, first baffle and second baffle divide pool body into water inlet pool, flocculator and settling tank, the upper portion of first baffle is equipped with filter grating, overflow launder is equipped on second baffle, the side surface of filter grating is equipped with the dredging plate that can reciprocatingly move in flocculator, dredging needle for dredging filter grating is equipped on dredging plate, the side surface of pool body is equipped with water inlet pipe connected with water inlet pool, the side surface of pool body is equipped with overflow outlet connected with settling tank. The interception of larger solid impurities, fiber and floating matter in wastewater by filter grating can significantly improve the flocculation reaction efficiency of wastewater after entering flocculator, reduce the dosage of reagent, and improve the operation stability and treatment effect of the whole printing and dyeing wastewater recovery device.

The utility model provides a wavy weir plate device of an effluent weir tank. The wavy weir plate device comprises a secondary sedimentation tank, the water outlet weir tanks are arranged below the secondary sedimentation tank in an inclined manner, the surfaces of the water outlet weir tanks are of a plurality of wavy sealing plate structures which are arranged in an array manner, and a water passing tank is arranged below the water outlet weir tanks; the water passing channel is arranged at one end, far away from the effluent weir tank, of the water passing tank; the sedimentation tank is arranged below the water passing channel, and water in the secondary sedimentation tank body can flow into the water passing channel along the surface of the water passing channel after flowing out of the effluent weir groove and falls into the sedimentation tank. Firstly, the secondary sedimentation tank is divided into a plurality of effluent weir grooves, the torrential phenomenon during effluent can be prevented, secondly, the effluent weir grooves are obliquely arranged, the falling flow speed can be reduced, the joints of the effluent weir grooves, the secondary sedimentation tank and a water passing groove can be in smooth transition through a wavy sealing plate structure, shock waves and splashed water are prevented from being generated, and the service life of the secondary sedimentation tank is prolonged. And the dissolved oxygen content is increased.

The invention provides a flocculation precipitation control method and device for a precipitation tank, electronic equipment and a storage medium. The method comprises the following steps: acquiring raw water quality target parameters; carrying out feature extraction and noise reduction processing based on the raw water quality target parameter through an adaptive modal decomposition algorithm to obtain a feature vector; processing the feature vector by using an extreme learning machine model optimized by an improved genetic algorithm to obtain a predicted value of the coagulant dosage; adding a coagulant into the raw water based on the predicted value of the coagulant addition amount, and monitoring operation parameters of the sedimentation tank; based on the operation parameters, determining the amount of dry sludge in the sedimentation tank through a dry sludge amount model; if it is determined that sludge discharging conditions are met based on the dry sludge amount and a preset sludge position threshold value, sludge discharging is conducted; the effluent turbidity of the sedimentation tank is monitored in real time in the sludge discharge process, and the coagulant addition amount is dynamically adjusted based on the effluent turbidity through a self-adaptive mode decomposition algorithm. In the mode, the coagulant feeding precision and the process collaboration are improved, and the on-demand sludge discharge of the sedimentation tank is realized.

The application discloses a steel plant wastewater sedimentation tank, which comprises a sedimentation tank body, a top cover, a rotating mechanism and a plurality of stirring mechanisms, the sedimentation tank body is provided with a tank opening facing upwards, the top cover seals the tank opening of the sedimentation tank body, the rotating mechanism comprises a fixed seat, a rotating seat and a first driving device, the fixed seat is connected to the bottom of the top cover, the rotating seat is rotatably connected to the fixed seat around a vertical axis, and the first driving device is used for driving the rotating seat to rotate, the plurality of stirring mechanisms are arranged around the rotating axis of the rotating seat, each stirring mechanism comprises a stirring body and a second driving device, the stirring body extends in the vertical direction and is used for disturbing wastewater in the sedimentation tank body, and the second driving device is used for driving the stirring body to rotate around a vertical axis. The wastewater sedimentation efficiency is improved.

This invention discloses a two-stage descaling system and method for circulating cooling water with CO2 as the core, relating to the field of cooling water descaling technology. It includes a primary sedimentation tank, a reaction tank, and a settling tank connected in sequence. The primary sedimentation tank is equipped with a chemical dosing mechanism. The reaction tank includes an air inlet pipe, a spiral tube, and a reciprocating drive mechanism. The lower end of the spiral tube is fixedly connected to the reaction tank, and the upper end is connected to the reciprocating drive mechanism to drive the upper end of the spiral tube to move up and down reciprocally, thereby periodically reducing the gap between the spiral tube pipes. This invention introduces CO2 into the reaction tank through the spiral tube. CaCO3 crystals undergo heterogeneous nucleation on the crystal seed surface, and Mg(OH)2 is simultaneously adsorbed to form stable flocs. Larger crystals are crushed. Finally, CO2 is introduced again to adjust the pH value of the cooling water. By using CO2 to replace traditional sulfuric acid for pH adjustment, SO42-induced descaling is avoided. 2‑ It reduces the risk of soil compaction and decreases carbon emissions, which is of great significance to green and sustainable development.

The present disclosure provides a kind of separation and settlement turbidity monitoring device.The separation and settlement turbidity monitoring device is applied to separation and settlement tank, the front end of the separation and settlement tank is provided with dilution tank and flocculant tank, the dilution tank and the separation and settlement tank are sequentially provided with buffer tank and first flow regulating valve, the flocculant tank and the separation and settlement tank are provided with second flow regulating valve, the separation and settlement tank is provided with flocculation monitoring module, and the control end of the first flow regulating valve and the control end of the second flow regulating valve are respectively connected with two signal output ends of the controller.The present disclosure can solve the problem that the existing separation and settlement flocculant addition amount is not accurate enough.