29results about How to "Fast precipitation" patented technology

The invention belongs to the technical field of wastewater treatment, and particularly discloses a thallium-containing wastewater treatment device which comprises a sedimentation tank and a reaction tank arranged on the upper portion in the sedimentation tank, and the reaction tank comprises an electro-catalysis tank, a pH adjusting tank, an electric flocculation tank, a magnetic medium inoculation tank and a stabilization tank which are sequentially communicated; a drainage tank I communicated with the electro-catalysis tank is arranged in the pH regulating tank; an outlet of the drainage tank I is communicated with the electric flocculation tank through a vortex tank I and an arc-shaped water outlet tank I in sequence; the structures of the magnetic medium inoculation pool and the stabilization pool are the same as the structure of the pH adjusting pool; pH probes are mounted in the pH regulating tank and the stabilizing tank. The invention also discloses a thallium-containing wastewater treatment method. The thallium-containing wastewater treatment device disclosed by the invention is large in occupied area, good in removal effect and stable in effluent; and a thallium removing agent, a flocculating agent and the like are not required to be added during operation, so that the operation cost is greatly reduced.

The invention discloses a sedimentation and separation device for sewage treatment, comprising a sewage treatment cylinder, one side of which is fixedly provided with an external pipe, a sedimentation and clearing assembly is installed inside the sewage treatment cylinder, and the sedimentation and clearing assembly comprises a bottom plate arranged inside the sewage treatment cylinder, the bottom wall of the bottom plate contacts the inner bottom wall of the sewage treatment cylinder, the outer wall of the bottom plate is tightly attached to the inner wall of the sewage treatment cylinder, a first vertical rod is coaxially fixedly installed on the top of the bottom plate, and a horizontal plate is fixedly installed on the top of the first vertical rod; in the present invention, during operation, after the top of the bottom plate is used for sedimentation, the second screw is rotated to move the movable ring downward, and filter holes are evenly opened on the filter plate inside the movable ring, in the process of the movable ring moving downward until it reaches the top of the sediment, water below the filter plate is discharged to the top of the filter plate through the filter holes, while the sediment cannot pass through the filter holes, and when the bottom plate moves upward, the sediment between the bottom plate and the filter plate is brought out, so as to facilitate the sedimentation and separation in the sewage.

The invention relates to the technical field of printing and dyeing wastewater treatment, and discloses a printing and dyeing wastewater treatment device with a multi-stage separation function, which comprises a sedimentation tank, an auxiliary separation assembly arranged at the top of the sedimentation tank and used for assisting in sedimentation of printing and dyeing wastewater, and an amplitude adjusting assembly arranged above the sedimentation tank and used for adjusting the sliding amplitude of the auxiliary separation assembly, an anti-blocking assembly used for guaranteeing smooth drainage is arranged in the sedimentation tank, through the arrangement of an auxiliary separation assembly and an amplitude adjusting assembly, continuous flapping action can be achieved, regular physical disturbance is generated in wastewater, pollutant particles can be better gathered and precipitated in the printing and dyeing wastewater, and through the continuous physical disturbance, the pollutant particles can be effectively separated from the sedimentation tank. According to the device, pollutants in the printing and dyeing wastewater can be settled in a short time, so that compared with a traditional settling pond, the settling efficiency is greatly improved, the retention time of the wastewater in the settling pond is shortened, and the treatment capacity of a whole printing and dyeing wastewater treatment system is improved.

The invention discloses a high-valued comprehensive utilization method of a waste battery diaphragm. The method comprises the following steps: S1, mixing and filtering the waste battery diaphragm and titanium white waste acid to obtain filtrate and a pretreated battery diaphragm in which part of an aluminum oxide coating is removed; wherein the pretreated battery diaphragm is subjected to catalytic pyrolysis, and aromatic hydrocarbon and solid carbon are obtained; s2, the filtrate is subjected to oxidation, polymerization and curing in sequence, and polyaluminum ferric sulfate is obtained.By means of the method, the waste battery diaphragm can be efficiently recycled, and titanium dioxide waste acid is fully purified and utilized. The method can realize selective preparation of aromatic hydrocarbon by catalytic pyrolysis of the waste battery diaphragm, can also comprehensively utilize the main component ferrous sulfate of the titanium dioxide waste acid to obtain polyaluminum ferric sulfate, can also obtain the coating material aluminum oxide of the waste battery diaphragm, and is a feasible and efficient method for realizing high-value utilization of the waste battery diaphragm and the titanium dioxide waste acid.

The utility model discloses a circulating water filtration treatment device for rock wool preparation, which comprises a sediment box, a filter box, a first filter screen, a second filter screen and a third filter screen, the filter box is arranged above the sediment box, the bottom end of the filter box is provided with a first guide pipe, the bottom end of the first guide pipe extends into the sediment box, and the bottom end of the second guide pipe extends into the sediment box. A water inlet pipe is mounted on one side of the top end of the filter box, a first filter screen is mounted in the filter box, a second filter screen is mounted in the filter box below the first filter screen, a third filter screen is mounted in the filter box below the second filter screen, a sewage collecting box is fixed to one side of the filter box, and a lifting frame is arranged on one side of the settling box; a first water pump is arranged on one side of the lifting frame. According to the sewage treatment device, suspended particles and sediments in sewage can be fully removed, dirt can be conveniently cleaned, and treated clear liquid can be conveniently and rapidly separated out.

The invention discloses a bridge slurry sewage treatment system, and relates to the field of sewage treatment, the bridge slurry sewage treatment system comprises a tank body, the top of the tank body is provided with a top cover, the inner side wall of the tank body is provided with a filter plate, a monitoring part arranged above the filter plate and arranged on the inner side wall of the tank body, and a feed inlet arranged above the filter plate and embedded in the side wall of the tank body, the first pipeline is connected with the feeding opening and arranged on the outer wall of the tank body, the first pipeline is externally connected with a feeding mechanism, the first discharging opening is formed in the lower portion of the tank body and embedded in the side wall of the tank body, the second discharging opening is formed in the upper portion of the filtering plate and embedded in the side wall of the tank body, and the second pipeline is connected with the first discharging opening and arranged on the outer wall of the tank body. A material pumping part is arranged at one end of the pipeline II; and a springback part is arranged below the filter plate and on the inner side wall of the tank body. By means of the arranged components, granular objects such as pebbles and large-particle substances can be conveniently filtered, so that the granular objects enter the spiral precipitation equipment to damage the equipment.

The invention relates to the technical field of wastewater treatment, and particularly discloses a septic tank wastewater comprehensive treatment system, which comprises a septic tank and a deodorization assembly, each group of deodorization assembly is fixedly connected with the septic tank and comprises a mounting bin, a stirring paddle, a driven gear, a servo motor and a driving assembly, the mounting bin is fixedly connected with the septic tank, one end of the stirring paddle is embedded in the mounting bin, the other end of the stirring paddle is embedded in the septic tank, the driven gear is fixedly connected with the stirring paddle, and the servo motor is fixedly connected with the driving assembly. The servo motor is fixedly connected with the mounting bin, the output end of the servo motor penetrates through the mounting bin, the driving assembly is fixedly connected with the output end of the servo motor, and the driving assembly is matched with the driven gear. According to the excrement treatment device, generation of peculiar smell can be reduced in the excrement treatment process, the surrounding environment is improved, meanwhile, the living experience of surrounding users is improved, follow-up treatment of excrement can be facilitated, and the treatment efficiency is improved.

The utility model relates to the technical field of chlorinated paraffin production, and provides a chlorinated paraffin refining device which is characterized in that a kettle body is arranged on a bracket; the sliding frame is slidably arranged on the support. The sliding frame is hinged to the telescopic legs. According to the technical scheme, the problems that in the prior art, precipitation of impurities in chlorinated paraffin in hydrochloric acid is slow, and the production time is too long are solved.

The invention discloses a heating combined vacuum well point foundation pit dewatering system and a using method thereof, and belongs to the technical field of engineering construction.The heating combined vacuum well point foundation pit dewatering system comprises a foundation pit area formed by surrounding a natural ground, and soil body heating units are annularly arranged on the periphery of the foundation pit area at intervals; the soil body heating unit is provided with a heating element for heating a soil body which is not less than the depth of the foundation pit; well point dewatering units are arranged on the periphery of the foundation pit area in the circumferential direction at intervals and located on the outer side of the soil body heating unit. According to the system, the water permeability of the low-permeability soil layer is improved through heating, the precipitation efficiency is remarkably improved, the period is shortened, different foundation pit requirements are met, precipitation rate control and energy consumption optimization are achieved by optimizing the vacuum degree and the heating temperature, and therefore the construction cost is reduced, and the overall construction efficiency is improved.

The present application relates to germanium smelting acid wastewater technical field, especially to a kind of germanium smelting acid wastewater depth filtration treatment device, including machine body, first chamber and second chamber are set in machine body, first chamber and second chamber are all provided with four groups of vertical agitator for mixing wastewater and chemical reagent and a horizontal stirring blade, first chamber and second chamber are all provided with four pressing plates for pressing sludge, and reverse osmosis membrane for discharging excess water in sludge is installed on pressing plate.The present application increases the stirring range of vertical agitator when switching vertical agitator and pressing plate to connect, and when switching vertical agitator and pressing plate to separate, let pressing plate to carry out sludge pressing operation, and then sludge and wastewater do not need to be transported, realize the automatic switching from reaction process to pressing process, and greatly improve the processing capacity and automation degree, while avoiding harmful substances from dripping or volatilizing due to sludge and wastewater transportation.

The utility model provides a limestone-gypsum method desulfurization wastewater integrated treatment device which comprises an efficient concentration clarifier body, an efficient reactor is installed at the top of the efficient concentration clarifier body, a wastewater inlet pipe, a chemical hopper and a stirrer are installed at the top of the efficient reactor, and a chemical feeder is installed on the outer side surface of the chemical hopper. A blanking pipe is arranged between the high-efficiency reactor and the high-efficiency concentration clarifier main body, an inclined pipe precipitator and a baffle plate precipitator are arranged in the high-efficiency concentration clarifier main body, a sludge hopper is arranged at the bottom of the high-efficiency concentration clarifier main body, and a clear water pipe is arranged on the high-efficiency concentration clarifier main body; when wastewater is treated, clear water and sludge can be separated, the wastewater treatment process is greatly simplified, the investment cost and the operation cost are further saved, actual popularization is facilitated, large-particle impurities which are not completely precipitated can be intercepted through the arranged overflow grating, and solid particles are prevented from flowing out of the clear water pipe along with the clear water.

The application discloses a sewage treatment system and method, which comprises a coagulation tank, a flocculation tank and a sedimentation tank. The coagulation tank, the flocculation tank and the sedimentation tank are sequentially communicated along the sewage flow direction. In addition, part of the sediment in the sedimentation tank returns to the flocculation tank. The system further comprises a control module, which comprises a carrier control module, the carrier control module adjusts the amount of circulating carriers and the amount of external carriers in the sediment returned by the sedimentation tank to the flocculation tank by monitoring the first actual carrier density in the coagulation tank and the water quantity and water quality of the water inlet end, so that the carrier density in the flocculation tank is kept within a first preset range; and a dosing control module, the dosing control module adjusts the dosing amount added to the coagulation tank and the flocculation tank by monitoring the second actual carrier density of the flocculation tank and combining the water quantity and water quality of the water inlet end. The sewage treatment system and method of the embodiment of the application improve the efficiency of sewage treatment and the water quality by coordinating the sewage treatment equipment.

The present application relates to the application field of water purification plant production wastewater treatment, in particular to a high-iron-manganese backwashing wastewater treatment method. The high-iron-manganese backwashing wastewater treatment method provided by the present application integrates coagulation, reaction, sedimentation and concentration, and magnetic powder is added in the coagulation sedimentation tank. The magnetic powder serves as a crystal nucleus, more easily forms alum flowers, greatly improves the specific gravity of the alum flowers, speeds up the sedimentation speed, and can improve the sedimentation efficiency of the high-iron-manganese backwashing wastewater. In combination with the addition of coagulants and coagulant aids, the treatment efficiency of the high-iron-manganese backwashing wastewater is further improved, the content of iron, manganese and SS in the effluent is reduced, and the solid content of the sludge is improved. The high-iron-manganese backwashing wastewater treatment method provided by the present application has the characteristics of small land occupation, high surface load, short hydraulic retention time and good treatment effect, improves the effluent water quality, the formed sedimentation sludge has a lower water content, the sludge discharge is more conducive to dewatering, and the subsequent sludge treatment pressure is reduced.

The utility model discloses a sewage treatment settling tank which comprises a tank body, an inner spiral water inlet pipe is arranged on the top surface of the tank body, a water inlet pipe is arranged on the top surface of the inner spiral water inlet pipe, a medicine inlet pipe is arranged on the top surface of the inner spiral water inlet pipe, a slope plate is arranged in the tank body, and a settling funnel is arranged on the bottom surface of the tank body. A filtering drainage pipe is arranged on one side of the box body. According to the sewage treatment settling tank, by arranging the tank body, the internal thread water inlet pipe, the chemical inlet pipe, the settling funnel and the filtering drainage pipe, sewage can be settled, a matched chemical is added to improve the settling and impurity removing efficiency, and by arranging the tank body, the internal thread water inlet pipe, the slope plate and the settling funnel, the settling speed of particles in the device can be increased; the bottom of the device can be freely disassembled, workers can conveniently clean the interior of the box body, and meanwhile, the device can quickly precipitate and remove impurities from sewage, so that the precipitation efficiency of the device is improved.

The invention provides a method for removing sodium alginate in kelp liquid, which comprises the following steps of: adding 0.2-0.5% of sodium hydroxide into dry kelp soaking liquid or fresh kelp blanching liquid according to a weight ratio, and uniformly stirring; then adding 0.05%-0.2% of polyacrylamide according to the weight ratio, and uniformly stirring; adding 0.05%-0.2% of calcium carbonate according to the weight ratio, and uniformly stirring; standing the obtained feed liquid, and after the sodium alginate, the heavy metals and other impurities are precipitated, filtering and removing the precipitate to obtain transparent light brown supernate; and centrifuging the supernate, wherein the centrifugate is the natural algae iodine solution. According to the method for removing sodium alginate in the kelp liquid, sodium alginate in the kelp liquid can be effectively removed, the viscosity of the solution is reduced, and a qualified raw material is provided for concentration or extraction of pure natural seaweed iodine.

The utility model discloses a filter suitable for a data center cooling water system. A turbulent flow device is arranged in a filtering tank body; the turbulent flow device comprises a first flow guide component and a second flow guide component; the upper end of the first diversion member is connected with the output end of the water inlet pipe; the lower end of the first diversion member is connected with the upper end of the second diversion member; the outer side wall of the first flow guide component is vertically arranged, a plurality of first water outlet holes are uniformly distributed and formed in the outer side wall of the first flow guide component, and the axes of the first water outlet holes are perpendicular to the outer side wall of the first flow guide component; the outer side wall of the second flow guide component is obliquely arranged upwards, a plurality of second water outlet holes are evenly distributed and formed in the outer side wall of the second flow guide component, and the axes of the second water outlet holes are perpendicular to the outer side wall of the second flow guide component. According to the utility model, particulate matters can be separated from cooling water more quickly, and the purification efficiency of the cooling water is higher.

The utility model relates to a cleaning device of a diamond micro-powder ultrasonic cell crusher. The cleaning device comprises a cleaning component and a collecting component, wherein the cleaning component is elastically connected to a vertical rod in a sliding manner up and down; the cleaning assembly comprises an adjusting seat and a washing ring pipe with the inner side wall provided with a water outlet hole and a brush at the same time, the vertical rod is sleeved with the adjusting seat, the washing ring pipe is arranged on one side of the adjusting seat, the amplitude-change pole is sleeved with the washing ring pipe, a water inlet valve is arranged at the top of the soundproof box, and a water pipe is communicated between the water inlet valve and the washing ring pipe. The collecting assembly comprises a wastewater tank, partition plates and a water outlet valve, the multiple partition plates are arranged at the bottom in the wastewater tank at intervals, and the top in the wastewater tank communicates with the water outlet valve; and a hollow operation table is arranged between the wastewater tank and the flushing ring pipe. The surface of the amplitude-change pole can be washed and brushed by water conveniently and efficiently, and meanwhile, waste water generated by washing can be effectively collected.

The ball ring warp and weft magnetic circuit oxygen-gathering and dynamically activated oxygen aeration and oxygen-increasing machine of the present invention is in the technical field of purification and treatment of domestic sewage and various types of industrial wastewater. The structure comprises an oxygen-gathering and nitrogen-discharging device and a dynamic oxygen activation device installed above, on the side and below the load-bearing chassis (50), a cylindrical flat-bottomed and inclined-topped buoy (55), and a plug-flow aeration device. The oxygen-gathering and nitrogen-discharging device is mainly composed of an arc-shaped warp magnetic circuit ring (13) and a circular weft magnetic circuit ring (14); the dynamic oxygen activation device is mainly composed of a central axis (9) and a central axis rare earth permanent magnet ring (6), a driving micromotor (42) and a high-end high-pressure fan (20); and the plug-flow aeration device is mainly composed of a submersible motor (31), a propeller blade (33) and a bird-wing-shaped magnetic guide plate (34). The present invention greatly improves the oxygen transfer rate; saves electricity and reduces sludge discharge; and is simple to install, stable in operation, convenient to maintain, and saves investment.

The invention discloses a dust removal and noise reduction device, which belongs to the field of dust removal and noise reduction devices, comprising a connecting pipe, one side of the connecting pipe is connected to production equipment that generates noise and dust, and the other side is connected to the external environment, an upper arc cover and a lower arc cover are arranged in the connecting pipe, the upper arc cover and the two sides of the lower arc cover are connected through a sound wave collecting device, the upper arc cover is filled with water and a sound wave vibration device is arranged on the outer wall on the side facing the production equipment, the sound wave vibration device comprises a vibration plate and a sponge plate, the sponge plate is arranged in the upper arc cover, a narrow slit is arranged below the sponge plate, the narrow slit can supply water to flow out, a ball head collecting structure is arranged in the lower arc cover, the upper end of the ball head collecting structure extends out of the upper surface of the lower arc cover, and a collecting pipe connected to the outside is arranged on the side of the lower arc cover. The invention can eliminate noise and dust in aerodynamic noise.

The utility model relates to the technical field of bamboo processing equipment, and provides a bamboo juice extracting device which is characterized by comprising a flat plate press, a bamboo juice collecting tank, a bamboo juice collecting tank and a control cabinet, the flat plate press comprises a rack, a lower pressing plate, an upper pressing plate, a power unit and a pressing plate heating unit, the machine frame is opened in the x-axis direction so as to facilitate feeding and discharging, the bamboo juice collecting tanks are arranged on the two sides of the x-axis direction of the lower pressing plate and located below the pressure face of the lower pressing plate, and the bamboo juice collecting tanks are connected with the bamboo juice collecting tanks through pipelines. The method has the advantages of being high in production efficiency, capable of achieving mass production and high in bamboo juice yield, and the flat bamboo chips can be obtained and can serve as raw materials of high-added-value products such as bamboo finger joint boards, bamboo chopsticks, bamboo chopping boards and bamboo spoons.

The present invention discloses an adaptive bacterial fermentation and culture device, which relates to the field of bacterial fermentation and culture, and includes a device body and a control device installed outside the device body. A plurality of fermentation and culture components are detachably installed inside the device body through a support component, and a precipitation container, a culture liquid storage container and an oxygen storage container are also fixedly installed through the support component. The precipitation container, the culture liquid storage container and the oxygen storage container are connected to the fermentation and culture component through a pipeline. The control device is used to control the culture liquid storage container and the oxygen storage container to add culture liquid and oxygen to the fermentation and culture component according to the fermentation growth requirements of bacteria in the fermentation and culture component. The present invention can automatically adapt to the control and change the oxygen supply speed in each area in the fermentation tank according to the situation of the area, so that the oxygen supply is more accurate and the bacterial culture environment is more suitable.

The invention discloses a fly ash recycling autoclaved brick production device and a process thereof, and relates to the technical field of autoclaved bricks. The fly ash recycling autoclaved brick production device and a process thereof comprise an extrusion block, wherein a vibration rod and a plastic shell are arranged inside the extrusion block, and a mixed slurry is poured into a mold, and a hydraulic rod is installed directly above the mold, and when the vibration rod moves downward, the plastic shell can be driven to move downward together, and then the vibration rod can be driven by a motor to vibrate rapidly, thereby accelerating the sedimentation speed in the mixed slurry. After completing this link, the cylinder drives the vibration rod back to the original position, and leaves the plastic shell in the mixed slurry, and then the hydraulic rod continues to apply pressure downward, and when the extrusion block reaches a specified height, the hydraulic rod stops pressurizing, thereby reducing the difference in rigidity between the upper half area and the lower half area of ​​the mixed slurry after solidification, and solving the problem that the firmness of the autoclaved bricks gradually decreases from the bottom to the top due to air bubbles and more water.

The utility model discloses a two -segmented mine water is coordinated and is removed turbidity, removes fluorine precipitate processing device, including the turbidity removal sedimentation section and the coordinated sedimentation section who sets up in intercommunication, turbidity removal sedimentation section includes one stage first mixed area, one stage second mixed area, one stage flocculation area and one stage sedimentation area, and one stage sedimentation area and one stage second mixed area still are connected with one stage circulation area, the coordinated sedimentation section includes two stage first mixed area, two stage second mixed area, two stage flocculation area and two stage sedimentation area, and two stage sedimentation area and two stage second mixed area still are connected with two stage circulation area, and one stage sedimentation area intercommunication two stage first mixed area, the utility model discloses a turbidity removal sedimentation section and the coordinated sedimentation section who sets up in intercommunication, and turbidity removal sedimentation section reduces the turbidity through higher hydraulic load, and reduces the suspended solids in mine water, and in the coordinated sedimentation section water, there is a certain amount of suspended solids and microsand together with the improvement coal slime's drop characteristic, and the sedimentation effect is improved.

The utility model relates to the technical field of sludge treatment, in particular to a sludge rotational flow purification device which comprises a box body, rotational flow separation mechanisms, a water inlet header pipe and a water outlet header pipe, a plurality of groups of rotational flow separation mechanisms are arranged in the box body and are arranged along the horizontal direction, the water outlet header pipe penetrates through the upper part of the box body, and the water inlet header pipe penetrates through the box body. A water inlet of the cyclone separation mechanism is communicated with the water inlet header pipe, a water outlet of the cyclone separation mechanism is communicated with the water outlet header pipe, and a sludge discharge groove is formed in the box body, is arranged below a sludge discharge port of the cyclone separation mechanism and is communicated with the outside of the box body. The multiple groups of cyclone separation mechanisms are arranged in the box body, so that the treatment efficiency of the sludge purification device is higher, any group of cyclone separation mechanism can be closed at any time for maintenance without influencing the operation of the whole device, the sludge separation effect is good, and the maintenance is convenient.

This invention discloses a seawater treatment system for aquatic organism seedling and larval cultivation based on a natural ecological cycle. The system includes a natural sedimentation tank, a secondary sedimentation algae cultivation tank, a multi-stage dark sedimentation tank, a primary sand filter, a secondary sand filter, and a water storage tank connected to the end of the secondary sand filter. A pump is installed to connect to a water storage tower. A seawater concentration device and an ultrafiltration device are also included between the water storage tower and the aquatic organism seedling tank. The secondary sedimentation algae cultivation tank can be directly connected to a juvenile shellfish rearing tank for direct use in juvenile shellfish cultivation. The sand filter also features a backwashing design for easy recycling. The seawater processed through the primary and secondary sand filters, concentration device, and ultrafiltration device can be used for larval cultivation of aquatic organisms. This water treatment system, through its multi-stage structural design and combined with natural environmental control of light and shading, avoids the drawbacks of chemical and biological purification and the shortcomings of simple physical sand filtration in a natural and ecological way. This ensures a large-scale supply of water for aquatic organism seedling and shellfish cultivation, meeting the diverse needs of large industrial areas.

The utility model discloses a solid-liquid separation packing structure for sewage treatment, which comprises a fixed rod and packing units, a plurality of groups of packing unit layers are vertically arranged on the fixed rod, and each packing unit layer comprises a plurality of horizontally arranged packing units. The device is simple in structure and convenient to use, reduces the impact of upward water flow on solid particles precipitated downwards, accelerates the precipitation speed, and improves the precipitation efficiency.

The invention discloses a self-adaptive bacterial fermentation culture device, and relates to the field of bacterial fermentation culture, the self-adaptive bacterial fermentation culture device comprises a device main body and a control device mounted outside the device main body, and a plurality of fermentation culture assemblies are detachably mounted in the device main body through support assemblies; a precipitation container, a culture solution storage container and an oxygen storage container are further fixedly installed through the supporting assembly, the precipitation container, the culture solution storage container and the oxygen storage container are connected with the fermentation culture assembly through pipelines, and the control device is used for controlling the fermentation culture assembly according to the fermentation growth requirements of bacteria in the fermentation culture assembly. And controlling the culture solution storage container and the oxygen storage container to supplement the culture solution and oxygen into the fermentation culture assembly. According to the condition of each region in the fermentation tank, the oxygen supply speed in the region can be automatically and adaptively controlled and changed, so that the oxygen supply is more accurate, and the culture environment of bacteria is more suitable.

The invention relates to the technical field of sewage treatment equipment, and particularly discloses sewage precipitation treatment equipment for environmental protection technology development, the sewage precipitation treatment equipment comprises a supporting ring, the upper surface of the supporting ring is fixedly connected with a supporting column, and the top of the supporting column is fixedly connected with a bearing ring. After entering the staggered ring, sewage leaks downwards through a filter screen plate on the staggered ring, gradually passes through a drainage groove in the treatment ring, passes through a baffle ring and enters the inner side of the inner ring through a liquid inlet groove, namely, the sewage is preliminarily filtered through cooperation of the treatment ring and the staggered ring, the density of particles in the sewage is greatly reduced, and the sedimentation speed of the sewage is increased; along with the rotation of the dislocation ring, the closing plate gradually gets close to the liquid leakage groove and finally seals the liquid leakage groove, at the moment, the filter screen plate and the drainage groove are staggered, the first dislocation groove and the second dislocation groove coincide and face each other, namely, the interior of the dislocation ring is cleaned through alignment of the first dislocation groove and the second dislocation groove, and primary treatment of sewage next time is facilitated.

The invention relates to an ink-jet printing method. In an inkjet printing method for discharging ink from a liquid discharge head, the ink contains titanium oxide, and the precipitation rate in the ink based on the Stokes equation is 1.0 * 10-11 m / s or more. The liquid discharge head includes a discharge port, a pressure chamber, an energy generating element, an upstream flow passage for supplying liquid to the pressure chamber, a downstream flow passage communicating with the pressure chamber, and a pump communicating with the upstream flow passage and the downstream flow passage and forming a circulation path, the ink circulates in the circulation path in the order of the upstream flow channel, the pressure chamber, the downstream flow channel, and the upstream flow channel, and the liquid discharge head is configured to perform reciprocating scanning, and a scanning speed in a region where the liquid discharge head scans at a constant speed is higher than a deposition speed.