98results about "Sedimentation separation" patented technology

A novel process for desulfurizing spodumene smelting slag using EDTA is presented. This process uses the final solid waste obtained from the water leaching lithium extraction process after sulfuric acid roasting of spodumene as raw material. A prepared EDTA solution is added to the smelting slag containing approximately 10% calcium sulfate, allowing the raw material to fully react with the EDTA solution, thus achieving desulfurization of the smelting slag. Finally, the filtrate is subjected to rotary evaporation precipitation, and the EDTA solution is recovered and recycled. This process has high resource utilization, not only achieving 99.9% desulfurization of the smelting slag in a short time but also enabling the recycling of the EDTA solution. The desulfurization method provided by this process is highly efficient, simple, and transforms waste into valuable resources, increasing economic benefits. Furthermore, it effectively addresses the environmental compatibility issues of solid waste in the existing lithium mining industry, which is of great significance for the sustainable and high-quality development of the lithium battery industry.

The invention relates to a method for dewatering a solid-liquid mixture, comprising the steps of providing a solid-liquid mixture; adding a drainage aid to the solid-liquid mixture; and reducing the liquid content in the solid-liquid mixture to ≤ 25% by mass. The invention further relates to a composition with a solid and a liquid to be separated from it, wherein the composition comprises a drainage aid that is surface-active and reduces a positive interaction between a surface of the solid and the liquid of the composition and / or has a porous and / or fibrous structure that facilitates the flow of the liquid through pores and / or along a surface.

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.

The application discloses a rotary inclined plate sedimentation tank and relates to the field of sewage treatment equipment. The rotary inclined plate sedimentation tank comprises a sedimentation tank body, a water inlet structure, a rotary inclined plate structure, a sludge collecting hopper and a water outlet structure. The inclined plate structure adopts a rotatable inclined plate device. The rotatable inclined plate device can rotate periodically due to the rotating force generated by the screw propeller at the end of the rotary inclined plate in the process of water flow and the rotating force generated by the uneven gravity distribution of sludge on the rotary inclined plate. Therefore, the sludge can be smoothly settled without being limited by the inclination angle, the sedimentation efficiency is improved, and the traditional sludge blockage phenomenon of the inclined plate is avoided.

This invention relates to the field of wastewater treatment technology, specifically to a sedimentation and separation device for wastewater treatment. The device includes a sedimentation tank, a linear slide, a rotating chamber, multiple telescopic stirring and dosing components, a radial drive mechanism, and a lifting mechanism. A conical sludge collection hopper is located at the bottom of the sedimentation tank. The linear slide is positioned at the top along the length of the sedimentation tank. The rotating chamber is driven to rotate by a first servo motor at the working end of the linear slide. The telescopic stirring and dosing components are circumferentially distributed within the rotating chamber and include a slider, guide sleeve, delivery pipe, vertical frame, and dosing pipe. The delivery pipe is connected to a supply tank, and two sets of dosing pipes are rotatably connected and equipped with dosing ports. The radial drive mechanism drives the slider to move radially, and the lifting mechanism is connected to the delivery pipe via a transmission connection. This device, through the linkage of the radial drive mechanism and the lifting mechanism, achieves coordinated adjustment of the radial expansion and contraction and vertical lifting of the dosing pipe. Combined with the rotating stirring, it achieves uniform dosing and stirring throughout the sedimentation tank, improving coagulation and sedimentation separation efficiency and adapting to different wastewater treatment conditions.

A hydrodynamic cavitation system features a first stator, a second stator, a third stator, and a rotor, each having a plurality of indentations. The hydrodynamic cavitation system further includes a drive shaft, a variable speed motor, and a pump, wherein the pump circulates fluid through the hydrodynamic cavitation system while the drive shaft actuates the rotor, generating hydrodynamic cavitation between each stator and the rotor. Each of the plurality of indentations provides different regions to optimize overall hydrodynamic cavitation volume, increasing cavitation locations, which can coalesce to become a macro cavitation site and cavitation cloud. The hydrodynamic cavitation system removes bacteria, pathogens, viruses, fungi, cyanobacteria as well as breaks chemical bonds, effectively treating contaminated water and other fluids.

This invention discloses a device for draining heparin sodium precipitation solution, comprising a precipitation tank with an observation port on its side wall, a sealed top with a lid, a rotatably connected fixing seat on the lid, a support tube coaxially threadedly connected to the fixing seat, a second motor fastened to the top of the lid, gears connected to the output end of the second motor and the outer wall of the fixing seat, the gears meshing together; a connecting seat fastened to the bottom of the support tube inside the precipitation tank, a protective mesh cover installed at the bottom of the connecting seat, the end of the support tube extending into the protective mesh cover, and a guide rod penetrating the lid vertically connected to the top of the connecting seat; and a collection tank, the top of the support tube connected to a pump body via a hose, a transport pipe connected to the outlet of the pump body. This invention, through the separation and filtration functions of the protective mesh cover and filter screen, prevents the bottom sediment from being drawn into the collection tank, ensuring the purity of the extracted upper solution.

A spiral inertial microfluidic (SIM) system comprises a microfluidic chamber configured to receive a particle suspension comprising particles and induce aggregation of the particles therein to generate aggregated particles, a spiral channel disposed downstream of the microfluidic chamber and configured to concentrate the aggregated particles to generate concentrated particles, and one or more detection ports disposed downstream of the spiral channel and configured to receive the concentrated particles for detection of the concentrated particles.

Provided is an apparatus of processing a substrate. The apparatus includes: a treating chamber for processing a substrate with a treatment liquid; and a treatment liquid supply unit for supplying the treatment liquid to the treating chamber, in which the treatment liquid supply unit includes: a treatment liquid tank for storing the treatment liquid; a treatment liquid supply line for connecting the treatment liquid tank and the treating chamber; and an acoustic wave applying module which is installed in the treatment liquid supply line and applies an acoustic wave to the treatment liquid supply line to improve cleanliness of the treatment liquid. Accordingly, foreign substances, such as particles and bubbles, in the treatment liquid may be removed by applying acoustic waves to the treatment liquid.

This utility model discloses a sludge scraper for sedimentation tanks used in fluoride-containing wastewater treatment, relating to the field of wastewater treatment. The upper surface of the base plate is equipped with a position adjustment component, and a vertical pole is located above the base plate, with a top plate at the top of the pole. The top plate includes a fixed plate, a telescopic plate, and a movable plate. The telescopic plate is slidably connected to one end of the fixed plate, and a counterweight is located on the end of the telescopic plate protruding from the fixed plate. A connecting rod is located at the other end of the fixed plate. A driving component is located on the upper surface of the fixed plate, and a lifting plate is located below the movable plate. A lifting component is located on the upper surface of the movable plate. The lifting component includes a support plate, a take-up reel, and a motor. The support plates are opposite each other on the upper surface of the movable plate, and a take-up reel is rotatably connected between the support plates. The motor is located on the support plate, and a sludge scraping component is located on the lower surface of the lifting plate. The advantages of this utility model are: it can thoroughly scrape and clean the sedimentation tank, and the entire scraper's support structure is balanced when the scraper plate is lifted after scraping.

Treatment compositions for treating water sources and methods for treating water sources are described. [Solution] The composition comprises one or more of an inorganic salt, a treatment polymer, and particles. A flocculant may be added to the water source before or after the inorganic salt, treatment polymer, and particles. The method and composition can be used, for example, to treat wastewater.

This utility model discloses a deep cone thickener for emergency treatment of rare earth ore mother liquor, comprising a thickener and a flocculant mixing tank. The thickener is equipped with a mother liquor inlet pipe, a supernatant outlet pipe, a delivery pipe, and a lead pipe. The lead pipe is equipped with a water valve, and its upper end is connected to the supernatant outlet pipe, while its lower end is connected to the flocculant mixing tank. The flocculant mixing tank is connected to the mother liquor inlet pipe via the delivery pipe. The upper end of the lead pipe is positioned above the lower end of the flocculant mixing tank. This utility model has advantages such as convenient layout, cost-effectiveness, and the ability to provide emergency flocculant preparation during water outages. Furthermore, by connecting the flocculant to the mother liquor pipe and allowing it to enter the deep cone thickener along with the mother liquor, the mother liquor and flocculant are thoroughly mixed.

To provide a wastewater treatment agent for use in coagulation treatment of wastewater, which not only has coagulation treatment performance but also can reduce the COD of the treated water, and a wastewater treatment method using the agent.SOLUTION: The reduction of the COD of treated water can be achieved by applying a wastewater treatment agent comprising a polymer obtained by polymerizing monomer components containing a cationic monomer represented by general formula (1) and / or an anionic monomer represented by general formula (2) in the presence of cyclodextrin. Preferably, the amount of the cyclodextrin present in the polymerization to obtain the polymer is 2 to 15 mass% based on the total monomer mass.SELECTED DRAWING: None

The application discloses a turpentine production distillation device and relates to the technical field of turpentine production. The turpentine production distillation device comprises a pretreatment tank and a cover plate rotating at the bottom of the pretreatment tank, the top of the pretreatment tank is connected with a mounting cover through a lifting mechanism, the mounting cover is rotationally connected with a rotating disc, a plurality of mixing grooves are formed in the top of the rotating disc, L-shaped pipes are fixedly arranged at the bottom of each mixing groove, and a first feeding mechanism for feeding turpentine raw materials into the mixing grooves is arranged at the top of the pretreatment tank. The turpentine production distillation device is convenient for flocculation operation on raw materials before distillation, the mixing efficiency is higher, the mixing effect is better, the flocculation efficiency and effect are improved, after flocculation is completed, the upper turpentine phase, the middle water phase and the lower impurity layer can be separately discharged, the lower impurity layer can be extruded, raw material waste is avoided, and transportation and disposal are facilitated.

This invention discloses a method and system for synergistic regulation of low oil content and high-quality tar in circulating ammonia water of coking plants, belonging to the field of coal chemical tar ammonia water separation and purification technology. The system includes a gas-liquid separation device, a tar ammonia water separation device, a reagent quantitative dosing device, a tar residue draining device, and a control system. The gas-liquid separation device includes a gas-liquid separator, a horizontal tube primary cooler, an upper condensate circulation tank, and a lower condensate circulation tank. The tar ammonia water separation device includes a mechanized tar ammonia water separation tank, a first-stage circulating ammonia water tank, and a second-stage circulating ammonia water tank. The reagent quantitative dosing device includes a multi-point synergistic demulsifier dosing device and a flocculant dosing device. The tar residue draining device includes a liquefaction tank, a grinding pump, a centrifuge, and a slag hopper. The control system includes a hysteresis-stretching interface meter, an automatic regulating valve, and a PLC controller. This invention breaks through the traditional single-improvement mode, forming a systematic solution; it can significantly reduce the oil content of circulating ammonia water and improve tar quality.

The utility model belongs to the field of reciprocating type mud scraper, specifically is a reciprocating type mud scraper that scraper board can quick replacement, including sedimentation tank, the inner wall movable joint of sedimentation tank has the frame, first hydraulic oil cylinder is used in partnership with frame, the inner wall fixed mounting of sedimentation tank has first hydraulic oil cylinder, the top fixed mounting of sedimentation tank has second hydraulic oil cylinder, the number of second hydraulic oil cylinder is two, the inner wall of frame is provided with connecting plate, the number of connecting plate is several;The utility model through setting replacement mechanism, can under the action of replacement mechanism, the convenience of user can increase convenience when replacing scraper, spares the user through the mode of cutting the scraper that needs to replace and disassembles, can increase the efficiency and effect of user when replacing scraper, reaches the purpose of convenient user to the scraper that appears abrasion and replaces.

A method and system for extracting a target analyte from a sample using acoustic ejection techniques is provided. The method includes applying focused acoustic energy to a fluid reservoir containing a fluid composition containing the target analyte and including an upper region and a lower region, wherein the target analyte concentration in the upper region is different from the target analyte concentration in the lower region. The focused acoustic energy is applied in a manner effective to eject fluid droplets from the fluid composition into a droplet receiver, wherein the analyte concentration in the droplet corresponds to either the analyte concentration in the upper region or the analyte concentration in the lower region, and the analyte concentration is substantially uniform across the droplet. The fluid composition can include an ionic liquid used for extraction of the ionic target analyte. Related methods and acoustic extraction systems are also provided.

The application discloses a compound flocculating agent and application thereof, and belongs to the technical field of flocculating agents. The compound flocculating agent comprises flocculating agent A and flocculating agent B. The flocculating agent A comprises attapulgite and bamboo charcoal, and the flocculating agent B comprises chitosan quaternary ammonium salt and polyacrylamide. The compound flocculating agent is applied to the flocculation of stevia extract liquid, and has the advantages of fast flocculation settling speed, low cost, simple operation, low loss rate of steviol glycosides, high clarification rate and good flocculation and impurity removal effects.

An example integrated datacenter cooling and mineral recovery system can include a waste heat stream produced by a datacenter. The waste heat stream can have a temperature greater than about 50° C. A heat exchanger can have a cold side and a hot side thermally coupled to the waste heat stream. A brine stream can be sourced from a body of salt water, wherein the brine stream is coupled to the cold side of the heat exchanger such that the heat exchanger is configured to transfer heat from the waste heat stream to the brine stream to produce a mineral residue through any one or more of evaporation of water, pH adjustment, and temperature adjustment. A condenser can be in fluid communication with the brine stream and configured to condense water vapor from the brine to form a recovered water.

This invention provides a variable in-pipe coagulation device that uses an orifice installed inside a pipe to agitate, mix, and coagulate two liquids with a vortex generated downstream. The orifice hole diameter facing the flow path inside the pipe can be easily adjusted according to the coagulation state, and the internal cleaning can be easily performed without the need for disassembly. [Solution] In an in-pipe flocculation device that stirs, mixes, and flocculates sludge and a flocculant by installing an orifice inside the pipe, the device includes an orifice plate 3 having a plurality of orifice holes 2 of different diameters that open in a circular pattern, a casing 4 that has a connecting passage 5 that connects to the sludge pipe 6 and rotatably encloses the orifice plate 3 so that the orifice holes 2 are located in the connecting passage 5, and an adjustment device 8 that extends from the orifice plate 3 to the outside of the casing 4. As a result, the diameter of the orifice holes can be easily changed from the outside, making it possible to adjust the stirring strength according to the flocculation state.

This invention relates to a reactor for biological wastewater treatment, comprising: - a chamber capable of containing a mixture of wastewater and sludge at different liquid levels, each liquid level being defined by sludge concentration and / or density; - an apparatus for determining the minimum and maximum liquid levels for sludge extraction in the chamber, comprising: • a measuring device capable of measuring the sludge concentration and / or density of the wastewater and sludge mixture at different liquid levels; • a selection device capable of selecting a maximum and minimum sludge concentration and / or density value; • a derivation device capable of deriving the minimum extraction liquid level corresponding to the selected maximum concentration value and the maximum extraction liquid level corresponding to the selected minimum concentration value; - an extraction device capable of extracting sludge at a variable liquid level between the minimum and maximum extraction liquid levels.

A surface is disclosed that can be contacted with a bulk liquid to perform particle separation. The surface includes a plurality of spaced-apart ribs to retain a portion of the bulk liquid and target particles therebetween by capillary action. In general, the portion of the bulk liquid retained by the plurality of ribs on the surface forms a liquid film. One or more particles contained in the space and surrounded by the liquid film can be protected from one or more forces exerted by a liquid drainage meniscus on the surface.