27results about How to "Improve settlement performance" patented technology

This invention discloses a thickener with a sealing mechanism, relating to the field of thickener technology. The invention includes a thickener body, a rotating shaft, a rake frame, and a movable box. The mixing mechanism includes a mixing rod with a spiral blade fixed to it, and a sealing mechanism also fixed to the mixing rod. A shifting mechanism is slidably disposed on the outer circumference of the rotating shaft. The rotating shaft drives the movable box to rotate, thereby causing the friction wheel to drive the mixing rod and spiral blade to rotate and mix the slurry, ensuring thorough mixing of the flocculant and slurry. The rotating shaft drives the dispersion disc to rotate, which can disperse the slurry to various positions within the thickener body, ensuring the flocculant is also evenly distributed within the thickener body. The shifting mechanism causes the dispersion disc to rise, reducing the opening of the discharge tank and thus decreasing the discharge speed. The movable box moves downwards, making the mixing rod parallel to the bottom of the thickener body. At this time, the rotating spiral blade stirs up the mud layer at the bottom of the thickener body, reducing the resistance on the rake frame and preventing deformation or jamming of the rake frame.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The utility model belongs to water treatment technical field, specifically discloses a perforated folded plate for sedimentation tank and the sedimentation tank of oblique installation perforated folded plate. The perforated folded plate is the plate -like structure of undulating extension and includes at least three folded plate tops of undulating top end and three folded plate bottoms of undulating bottom end, and the folded plate top of perforated folded plate is adjacent to the folded plate bottom and is provided with a plurality of folded plate holes on or close to the folded plate top. The water inlet and the water outlet of the sedimentation tank are separately arranged in the lower part and the upper part of the pool body, a folded plate support is fixed above the water inlet in the pool body, a plurality of aforementioned perforated folded plates are obliquely arranged on the folded plate support in the pool body, the folded plate top of the perforated folded plate faces upwards and the folded plate bottom faces downwards. The perforated folded plate top of the utility model is provided with the folded plate hole, and the sewage can flow upwards through the folded plate hole, which not only can increase the sedimentation area, but also can realize automatic sludge discharge, has the characteristics of simple structure, wide application range, high sedimentation efficiency and automatic sludge discharge.

This utility model discloses a thickener for sodium bicarbonate production, including a settling tank. An overflow weir is installed at the upper part of the settling tank, and a guide channel is installed at the upper part of one side of the settling tank. A support base is fixedly installed at the middle of the outer surface of the rear end of the settling tank, and a premixing device is fixedly installed on the upper outer surface of the support base. The thickener for sodium bicarbonate production described in this utility model uses a motor-driven drive shaft, which drives a first agitator and a second agitator to rotate in opposite directions through belt transmission and gear meshing, forming a bidirectional stirring effect. This allows the material to be quickly and uniformly mixed in the cylindrical mixing chamber, avoiding excessively high or low local flocculant concentrations and ensuring a stable and reliable settling process.

This application relates to the field of carbon source materials, and in particular to a composite carbon source for enhancing the denitrification capacity of activated sludge, its preparation method, and its application. The composite carbon source for enhancing the denitrification capacity of activated sludge, by weight, comprises: 45-60 parts of fast-acting carbon source, 10-15 parts of long-acting carbon source, 9-16 parts of synergist, 0.2-0.5 parts of activator, 4-8 parts of composite functional agent, and 20-25 parts of deionized water. This composite carbon source effectively promotes the denitrification start-up speed, provides a stable and continuous carbon source supply, effectively avoids the defects of traditional carbon sources such as excessive supply in the early stage and insufficient supply in the later stage, and ensures efficient operation of the entire denitrification process. It is safe and convenient to use, non-toxic, and poses no risk of combustion or explosion. Storage and addition are simple, significantly reducing on-site operational safety risks. The carbon release process is stable and controllable, and multiple slow-release mechanisms enable flexible regulation of the carbon source release rate to match the denitrification requirements under different operating conditions.

The utility model discloses a short-cut nitrification coupling anaerobic ammonia oxidation integrated reactor, a perforated plate is arranged in the reactor, and a first part for short-cut nitrification and a second part for anaerobic ammonia oxidation are respectively distributed on the upper side and the lower side of the perforated plate; sludge of nitrite bacteria is attached to the interior of the first part through a first filler so as to fix aerobic bacteria, and the first part is connected with an aeration source; anaerobic ammonia oxidizing bacteria are fixed in the second part through a second filler; the size of the filler is greater than the hole size of the perforated plate; the second part is provided with a muddy water backflow and separation module; the muddy water backflow and separation module comprises the muddy water separation area and a sludge backflow area which is integrally connected with the muddy water separation area; a water outlet pipe is connected into the mud-water separation area and is used for separating and discharging aged sludge. The reactor can stabilize the growth of dominant bacteria and improve the denitrification treatment effect.

The invention discloses a method for treating sewage by combining micro-aerobic hydrolysis with coenzyme catalyst reinforced activated sludge. The method adopts a pretreatment tank, a primary sedimentation tank, an aerobic tank and a secondary sedimentation tank which are sequentially connected in series, according to the method, activated sludge containing microorganisms is put into a pretreatment tank and an aerobic tank, aeration is carried out while the pretreatment tank is filled with filler, a sludge domestication stage is firstly carried out, a coenzyme catalyst is put into the aerobic tank when the treatment capacity of a system reaches the optimum, modified activated sludge is obtained, and the sewage treatment efficiency is further improved. The coenzyme catalyst contains a carrier and an iron source; the carrier is selected from at least one of activated carbon and diatomite. The method is simple to operate, convenient to manage and suitable for upgrading and reconstruction of industrial wastewater.

This utility model discloses a high-efficiency sand-water separator for wastewater treatment, specifically relating to the field of wastewater treatment. It includes a housing with a spiral conveyor chamber installed on it; a cyclone separator is installed at the inlet end of the housing, and a buffer tank is installed at the outlet end of the cyclone separator, with a first deceleration assembly installed on the buffer tank; a guide tube is installed at the outlet end of the buffer tank, with a second deceleration assembly installed on the guide tube; a baffle assembly is installed inside the housing, inclined at the outlet of the guide tube; the buffer tank uses the first deceleration assembly to perform a primary deceleration on the wastewater discharged from the cyclone separator. This utility model pre-treats the floating fine sand particles in the sand-water mixture before decelerating the incoming water, avoiding the water swirling and agitation phenomenon caused by the large impact of the incoming water when treating wastewater containing a large amount of floating matter. This prevents lighter fine sand particles from overflowing back to the inlet pump room with the water flow, increasing the load and energy consumption of subsequent treatment.

The invention relates to the technical field of oilfield sewage treatment, and particularly discloses a composite water clarifier for oilfield sewage treatment and a preparation method of the composite water clarifier. The invention relates to a composite water clarifier for oilfield sewage treatment. The composite water clarifier is prepared from the following raw materials: dual modified polyacrylamide, an imidazoline quaternary ammonium salt grafted copolymer, a scale inhibitor, an adsorbent, dodecyl dimethyl betaine, a coagulant aid and deionized water, the double modified polyacrylamide is obtained by performing double modification on polyacrylamide by using 2, 3-epoxypropyl trimethyl ammonium chloride and a hydrophobic monomer; the imidazoline quaternary ammonium salt grafted copolymer is a grafted copolymer of imidazoline quaternary ammonium salt, acrylamide and acrylamide-2-methylpropanesulfonic acid. The composite water clarifier can be used for treating high-salt and high-oil sewage generated in the middle and later periods of oilfield exploitation, has the advantages of being high in salt resistance, thorough in demulsification and good in flocculation effect, can efficiently remove oil and suspended solids, ensures that effluent reaches the standard, and meets the complex sewage treatment requirements of an oilfield.

The invention discloses a glass cutting fluid containing a gemini quaternary ammonium salt settling agent, and belongs to the technical field of glass processing. The glass cutting fluid comprises the following components in percentage by weight: 5-20% of an extreme pressure additive, 6-15% of a gemini quaternary ammonium salt settling agent, 5-20% of polyol and 45-85% of deionized water. According to the glass cutting fluid containing the gemini quaternary ammonium salt settling agent, the gemini quaternary ammonium salt settling agent is prepared through synthesis, glass powder, solid particles, metal ions and flocculent sediments are rapidly settled, suspension and caking are avoided, scratches to the surface of optical glass are reduced, the sterilization performance is good, bacterium breeding can be effectively inhibited, and the settling life of the glass cutting fluid is prolonged; and the cutting fluid is non-toxic, does not hurt the skin, and is green and environment-friendly.

This application relates to an ultrasonic suspended solids sedimentation tank, belonging to the field of wastewater treatment. The ultrasonic suspended solids sedimentation tank includes a sedimentation tank, two first and two second diversion plates installed within the sedimentation tank, and multiple ultrasonic transducers installed on a support net. Ultrasonic sedimentation is performed using different numbers of ultrasonic transducers arranged in the first, second, and third zones. This application experimentally determined the optimal distribution of ultrasonic transducers in the first, second, and third zones and along the five water flow paths: A = 3, B = 2, and C = 4. This configuration achieves a simultaneous improvement in sedimentation effect across all zones within the sedimentation tank and a more uniform treatment effect, solving the problem in existing ultrasonic sedimentation tanks where the acceleration effect of suspended solids sedimentation is not significant in areas far from the wastewater inlet, and may even result in a decrease in the sedimentation rate.

A kind of calcified biomass red mud quick solid-liquid separation device belongs to the field of solid-liquid separation after bauxite dissolution, including: stirring shaft, ore pulp feeding pipeline, venturi device, settling tank body, clear liquid overflow tank, spiral flow guide bucket, electromagnetic induction coil, rake, underflow outlet.Ore pulp feeding pipeline is arranged at the top of settling tank body, liquid inlet is connected with the horizontal direction of spiral flow guide bucket tangential, ore pulp feeding pipeline is additionally provided with venturi device, and multiple flocculating agent adding ports are installed at the narrow place of venturi device;Spiral flow guide bucket is arranged in the settling tank body and is fixed at the upper part of the settling tank, and the inside of spiral flow guide bucket is provided with spiral downward lines;Electromagnetic induction coil is additionally provided outside spiral flow guide bucket;Stirring shaft is deeply into the settling tank body, stirring shaft bottom is connected with rake by connecting rod, and red mud leaves the settling tank from underflow outlet;Clear liquid is discharged from the top of settling tank body by clear liquid overflow tank;The device realizes the rapid solid-liquid separation of bauxite dissolution ore pulp.

This invention discloses a method for removing impurities from ferrous sulfate, a byproduct of titanium dioxide production, comprising the following steps: 1) taking ferrous sulfate and preparing a saturated solution; 2) adding dilute phosphoric acid, stirring thoroughly, and filtering to remove insoluble matter; 3) adding an appropriate amount of ammonia to the obtained solution, filtering, and evaporating the filtrate; 4) slowly stirring and cooling the remaining solution until the solution temperature drops to 10°C, centrifuging to obtain primary crystals and primary crystallization mother liquor; 5) dissolving the obtained primary crystals again and preparing a saturated solution, repeating steps 3) and 4) to obtain secondary crystals and secondary crystallization mother liquor; 6) dissolving the secondary crystals to prepare a ferrous sulfate solution, which can be directly used for the preparation of battery-grade iron phosphate. This method uses phosphoric acid, ammoniation, and recrystallization to remove impurities from ferrous sulfate through multiple processes. After impurity removal, the heptahydrate ferrous sulfate solid has high purity and low metal impurity content, and can be directly used for the synthesis of battery-grade iron phosphate after dissolution.

This invention discloses an integrated device and a method for rapid cultivation of aerobic granular sludge suitable for low-concentration domestic sewage, along with its application. The device comprises a batch reactor body integrating the following functional units: a full-area water distribution unit, including a main inlet pipe and distributed water distribution components; one end of the main inlet pipe is connected to the sewage source, and the other end extends to the bottom of the reactor cavity; the distributed water distribution components are connected to the main inlet pipe and equipped with multiple water distribution holes; a dual-zone aeration unit, including an air pump, a bottom aeration unit with a wide range of adjustable air volume, and a middle aeration unit with precise air volume control; a flow field optimization unit, located at the upper part of the reactor cavity and connected to the main inlet pipe; and a timing control unit, electrically connected to the full-area water distribution unit and the dual-zone aeration unit. The advantages of this invention are: by creating sedimentation selective pressure through dual-zone aeration to achieve sludge stratification, enhanced denitrification of heavy granular sludge, and removal of excess phosphorus from light flocculent sludge, it also has the advantages of shortening the cultivation cycle of aerobic granular sludge and highly efficient denitrification and phosphorus removal.

The invention discloses a Rurugolil long-acting preparation composition as well as a preparation method and application thereof. The composition comprises an active medicine and at least one suspending aid. The Rurugolil long-acting preparation composition has an excellent slow-release effect, the administration interval can be prolonged to 7-90 days per time from 1 day per time, and the bioavailability, the compliance and the safety of a patient are remarkably improved. The pharmaceutical composition disclosed by the invention has the advantages of high preparation stability, simple prescription, controllable preparation process and capability of realizing industrial production amplification.

The application provides a multi-stage sludge screening device and a sewage treatment system. The device is used for screening sludge of a sewage treatment unit, and comprises a first number of first cyclones, a second number of second cyclones and a third number of third cyclones. The specification parameters of the first cyclones, the second cyclones and the third cyclones gradually decrease. The feed inlet of each first cyclone is used to receive sludge of the sewage treatment unit. The overflow outlets of the first cyclones are in communication with the feed inlets of the second cyclones. The underflow outlets of the first cyclones are in communication with a first pipeline. The other end of the first pipeline is in communication with a main pipeline. The overflow outlets of each second cyclone are in communication with the feed inlets of the third cyclones. The underflow outlets of each second cyclone are in communication with a second pipeline. The underflow outlets of each third cyclone are in communication with a third pipeline. The overflow outlets of each third cyclone are in communication with the main pipeline through a fourth pipeline. The multi-stage sludge screening device and the sewage treatment system can improve the performance of sludge and effectively improve the sewage treatment efficiency.

The application relates to a staggered groove collins filter rod, which relates to the cigarette technology field and comprises a filter core (1) and a wrapping layer (2). The outer circumferential surface of the filter core (1) is provided with longitudinal grooves (3) parallel to the axial center line. The wrapping layer (2) is wrapped on the outer circumferential surface of the filter core (1). The filter core (1) is further provided with a plurality of transverse ring grooves (4) on the outer circumferential surface, which divide the longitudinal grooves (3) and stagger the longitudinal grooves (3) on the two sides of the transverse ring grooves (4). After being divided into small sections for making filters, the middle position of each section contains a transverse ring groove (4). The transverse ring grooves on the outer circumferential surface of the filter core cut off the axial grooves and stagger the axial grooves on the two sides of the transverse grooves. After the smoke is disturbed by the transverse grooves, the smoke forms turbulent flow in the grooves, the smoke flow speed is hindered, the collision probability of tar is increased, and the settlement effect is greatly increased.

The application provides a glass grinding and cleaning wastewater recycling device, which comprises a cleaning frame and a recycling pool, a plurality of drainage pipes are fixedly connected to the side of the cleaning frame, the recycling pool is on the ground on one side of the cleaning frame, and a plurality of coarse filter assemblies and a plurality of standby filter assemblies are further included. The coarse filter assemblies and the standby filter assemblies below the coarse filter assemblies are connected in parallel, when a coarse filter assembly is blocked and needs to be cleaned, the standby filter assembly below the coarse filter assembly can be automatically or manually switched to a working state to temporarily filter the wastewater, so that the blocked coarse filter assembly can be cleaned offline without affecting the normal work of other filter units, the continuity of the entire wastewater recycling process is ensured, and the utilization rate and the processing efficiency of the device are significantly improved.

The present application belongs to the technical field of genetic engineering, and particularly relates to a genetic engineering strain for improving the sedimentation of N-acetylcoelenterazine product and a construction method and application thereof. The present application is constructed by overexpressing at least one specific transporter protein coding gene in YdeD, rhtB, AexA, YwfM, pecM and ydhE in a host capable of synthesizing N-acetylcoelenterazine. Compared with the parent strain, the engineering strain can efficiently promote the transport and efflux of N-acetylcoelenterazine product, break the limitation of intracellular accumulation of the product, greatly accelerate the enrichment speed of the product, and increase the particle size of the product. This feature significantly improves the sedimentation effect of the product, making the subsequent product recovery process more simple and efficient, simplifying the recovery process, effectively reducing the recovery cost, and providing strong support for the industrial production of N-acetylcoelenterazine in improving yield and reducing cost.

The utility model discloses a kind of DWBFRP double-wave plastic structure wall pipe, belong to the technical field of corrugated pipe, it includes a plurality of head-to-tail sequentially connected pipeline, each pipeline includes: pipeline main body;Multiple annular double-wave peaks, multiple double-wave peaks are evenly distributed along the axial direction of pipeline main body, double-wave peak is hollow structure, X-shaped cross reinforcement is arranged inside double-wave peak, and form reticular support frame;Multiple annular single-wave peaks, multiple single-wave peaks are evenly distributed along the axial direction of pipeline main body, and multiple double-wave peaks are alternately arranged, and single-wave peak is hollow structure.The utility model greatly enhances the load-bearing capacity of pipeline main body, improves the impact resistance of pipeline main body and ring stiffness, avoids the situation that water seepage is caused by the fact that different stone breaks the inner wall.

The invention discloses an efficient pretreatment method for particulate matter-containing low-calorific-value waste liquid, and relates to the technical field of waste liquid pretreatment, and the method comprises the following steps: establishing a coating existence identification factor by obtaining the surface viscosity displacement track, the particle size fluctuation phase and the interface refraction characteristic of particulate matters in the waste liquid; judging whether the particulate matters in the waste liquid are coated by the low-calorific-value organic components or not according to the coating existence identification factor; and under the condition that the particulate matter is coated with the low-calorific-value organic component, based on the dynamic trajectory behavior of the coating existence identification factor, extracting the initial bubbling lag time and the particle deformation rate inhibition amplitude generated by the conditioning reaction, and generating the permeation delay expression quantity. Aiming at the problems that permeation of a conditioner is blocked and the conditioning effect is difficult to judge due to the fact that particles in the particulate matter-containing low-calorific-value waste liquid are coated by organic components, accurate identification of the conditioning failure risk and dynamic closed-loop optimization of the dosing behavior are realized, and the pretreatment efficiency and the system operation stability are improved.

This invention provides a method and apparatus for low-carbon, ultra-deep denitrification of urban wastewater, belonging to the field of wastewater treatment and applied to urban wastewater treatment. In a continuous flow anaerobic-aerobic-anoxic alternating-post-anoxic process, urban wastewater and returned heavy sludge enter the anaerobic zone of a biological treatment tank. Returned light sludge and added hydroxylamine enter the aerobic-anoxic alternating zone of the biological treatment tank. The sludge-water mixture flowing out of the post-anoxic zone of the biological treatment tank enters a secondary sedimentation tank for sludge-water separation. The supernatant is discharged as effluent, and the settled sludge enters a hydrocyclone separator to be separated into heavy sludge and light sludge. The heavy sludge and part of the light sludge are returned to the process as described above, and part of the light sludge is discharged as excess sludge. Microorganisms in the sludge store internal carbon sources in the anaerobic zone of the biological treatment tank. Short-cut nitrification and endogenous denitrification are achieved in the aerobic-anoxic alternating zone of the biological treatment tank. Ultra-deep endogenous denitrification is performed in the post-anoxic zone of the biological treatment tank. This invention can achieve low-carbon, ultra-deep denitrification of urban wastewater.

This invention discloses a method for identifying ozone pollution layers in the low-altitude atmosphere and a method for rapid ozone deposition in the low-altitude atmosphere. The ozone pollution layer identification method achieves precise spatial positioning of the pollution layer through the synergy of a localized ozone exceedance risk threshold and lidar three-dimensional scanning. By combining precursor concentration data, ozone photochemical process correlation parameters, and observation-driven models to quantify regional transport contributions, it effectively identifies ozone pollution accumulation areas in the upper boundary layer, overcoming the limitations of ground monitoring stations and satellite remote sensing in terms of vertical resolution. The rapid ozone deposition method in the low-altitude atmosphere addresses the problems of difficult photochemical reaction control, insufficient intervention in the upper-altitude pollution layer, and weak suppression of cross-regional transport faced by existing ozone control technologies. Through the synergistic effect of physical disturbance and deposition, it accelerates turbulent diffusion, achieving large-scale, strongly disturbed ozone pollution control and reducing the height of the pollution layer and the impact of cross-regional transport.

This utility model relates to the field of workshop dust treatment technology, and discloses a workshop dust exhaust device, including a dust collection structure, a settling structure, and a three-way pipe. The dust collection structure includes two dust collection shells, each with a first servo motor installed in its center. The output ends of the two first servo motors are fixedly connected to rotating disks, and each rotating disk has an electric telescopic rod installed in its lower center. In use, the device uses the first servo motors to drive the rotating disks, causing the corrugated suction pipe to rotate parallel. Simultaneously, the electric telescopic rods drive the rack to move, allowing the tilt angle of the corrugated suction pipe to be adjusted. This enables the corrugated suction pipe to be precisely aimed at the dust source or high-concentration area, ensuring that dust in every corner of the workshop is effectively treated, expanding the dust collection range and improving dust collection efficiency.

The present application relates to a kind of in-situ rapid expansion cultivation methods of granular sludge, including fluidized bed reaction system and granular sludge enrichment system, the fluidized bed reaction system includes the reaction zone and feed zone that are interconnected, the feed zone includes water inlet, backflow water inlet, discharge port and dosing port, the reaction zone is located in the feed zone, and the granular sludge enrichment system is arranged in the reaction zone.This method can be used in wastewater decarburization denitrification phosphorus removal treatment, using the crystallization / precipitation of metal cation and phosphate, and the characteristics of metal cation and activated sludge with different charges, respectively as the crystal nucleus of granular sludge agglomeration and the intrinsic driving force of agglomeration growth, cultivate biological granular sludge in-situ rapidly in wastewater treatment process, with higher practicability and industrial value.

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.

The application relates to the technical field of oilfield sewage treatment, and particularly discloses a composite water clarifying agent for oilfield sewage treatment and a preparation method thereof. The composite water clarifying agent for oilfield sewage treatment is prepared from the following raw materials: double-modified polyacrylamide, imidazoline quaternary ammonium salt graft copolymer, scale inhibitor, adsorbent, dodecyl dimethyl betaine, coagulant aid and deionized water; the double-modified polyacrylamide is obtained by double modification of 2,3-epoxypropyl trimethyl ammonium chloride and a hydrophobic monomer on polyacrylamide; and the imidazoline quaternary ammonium salt graft copolymer is a graft copolymer of imidazoline quaternary ammonium salt, acrylamide and acrylamide-2-methylpropane sulfonic acid. The composite water clarifying agent can be used for treating high-salt and high-oil sewage generated in the middle and late stages of oilfield exploitation, has the advantages of strong salt resistance, complete demulsification and good flocculation effect, can efficiently remove oil and suspended solids, ensures that the effluent meets the standards, and meets the complex sewage treatment requirements of oilfields.