29 results about "Protein skimmer" patented technology

The application discloses a novel protein separator capable of purifying water quality through bacteria and algae culture and automatically maintaining dynamic balance, which comprises a casing, a gas-water generating device connected to the bottom of the casing, a separation component and a bacteria and algae culture part located above the water level in the casing, a sewage outlet located above the separation component in the upper part of the casing, a water outlet in the lower part of the casing, the separation component comprising a conical pipe and a straight pipe connected in series, the inner diameter of the conical pipe gradually increasing from bottom to top, the lower end of the straight pipe being connected with the upper end of the conical pipe, the separation component having one or more vertical notches, and the upper end of the notch extending to the upper end of the straight pipe. The separation component is used for repeatedly enriching, concentrating and dewatering the pollutants, and the dynamic balance of the bacteria and algae in the equipment and the water body to be treated is realized through the bacteria and algae culture part, so that the volume of the separated pollutants can be greatly reduced, the concentration of the separated pollutants can be improved, and the separated pollutants can be utilized, which has positive significance for reducing the treatment cost of the pollutants and recycling the pollutants.

The utility model discloses a system for indoor continuous culture of gynura mongolica. The system comprises a culture container, an imitated natural light source, a temperature control device, a heat exchange tube, a culture water outlet, a physical filter device, a protein separator, a microorganism filter device and a PEM ozone device. A powerful filtering system and an air stripping system are utilized, the air stripping system can disturb a large amount of water, excrement of heavy euonymus mongolicus is filtered out at the first time, excrement sinking to the bottom cannot be generated, the aquaculture water is in a clean state, a powerful circulating water system is matched, ammonia nitrogen nitrite in the water is reduced, and the water quality is improved. And the treated high-quality purified water is conveyed back into the culture container, so that the purpose of recycling the culture water is achieved, the quality of the used culture water is good, the naked belly flea Mongolica can effectively grow in a comfortable environment, and the probability that the naked belly flea is completely killed due to insect falling and necrosis is greatly reduced.

The utility model relates to a madrepore indoor artificial breeding system simulating a natural ecosystem, which comprises a breeding tank body, a coral breeding tank, an aluminum support arranged at the bottom of the coral breeding tank, and a bottom tank arranged in the aluminum support; the illuminating system comprises a coral illuminating lamp suspended above the coral breeding tank and an algae lamp suspended above the bottom tank; the water flow circulating system comprises a water pump and a water replenishing device which are arranged in the bottom tank, and wave making pumps arranged on the inner walls of the two sides of the coral culture tank; the filtering system comprises a protein separator, live stones and algae plants which are arranged in the bottom cylinder; and the titration system comprises a titration pump arranged on the outer side of the aluminum bracket. By simulating a natural ecological system and maintaining suitable and stable water quality conditions, the stability and the error-tolerant rate of artificial breeding of the coral are enhanced, the manual maintenance cost required by breeding is reduced, the survival rate and the growth efficiency of the artificial breeding coral are improved, and stable and suitable environmental conditions are created for indoor artificial breeding of the coral.

The utility model discloses a protein separator using micro-nano oxygen or ozone bubbles, which consists of a protein collector, a protein separation barrel, a micro-nano oxygen or ozone bubble preparation device, a water inlet assembly, a water outlet assembly and an emptying assembly, the micro-nano oxygen or ozone bubble preparation device is arranged in the center of the bottom of the protein separation barrel, and the water inlet assembly, the water outlet assembly and the emptying assembly are connected with the side wall of the protein separation barrel. By means of unique structural design and working process, efficient protein separation is achieved through micro-nano oxygen or ozone bubbles, and the protein separation device has the advantages of being high in separation efficiency, low in energy consumption, easy and convenient to maintain and the like.

This utility model relates to a quick-release adjustable explosion-proof protein separator, comprising a needle brush pump, a support base, a gas-water regulating valve, a gas-gathering and flow-slowing hood, a reaction cup, a collection cup connecting sleeve, and a collection cup. The needle brush pump is installed on the lower side of the support base, the gas-water regulating valve is located on the upper side of the support base, the gas-gathering and flow-slowing hood is installed on the gas-water regulating valve, the reaction cup is installed on the gas-water regulating valve and sleeved on the outside of the gas-gathering and flow-slowing hood, and the collection cup is connected to the upper side of the reaction cup through the collection cup connecting sleeve. A cylinder wall clamp is movably sleeved on the reaction cup, and an adjusting bracket is fixedly connected to the support base. The cylinder wall clamp is movably fitted on the adjusting bracket, and the adjusting bracket is provided with a fixing mechanism for fixing the cylinder wall clamp. This utility model protein separator achieves efficient water purification function by optimizing bubble generation and distribution, the bubble formation circulation mechanism, and an effective foam collection mechanism. It also allows users to quickly adjust the installation height as needed, improving the flexibility and adaptability of the equipment.

Mains operated self-regulating protein skimmer including a skimmer pump for pumping an air / organic loaded water mixture into its reaction chamber, an electrical conductivity (EC) sensor for deployment in its foam collection neck for sensing foam wetness, and a controller for controlling fluid flow rate through the protein skimmer in response to the EC sensor's foam wetness readings. Fluid flow rate can be controlled either by a variable flow DC skimmer pump and / or a motorized outlet port regulator for controlling an outlet port's outlet port area.

The invention relates to the technical field of live fish transport vehicles, in particular to a transport vehicle for long-distance transport of fresh and live aquatic products. The transport vehicle for long-distance transport of the fresh and live aquatic products comprises a vehicle body and a fish transporting box, the fish transporting box is installed in the vehicle body, fish transporting grooves are formed in the fish transporting box at equal intervals, and a through hole is formed between every two adjacent fish transporting grooves. By integrating the diaphragm electrolytic cell, the oxygenation mechanism, the activated carbon filtering mechanism, the cooling mechanism and the protein separator capable of being selectively opened and closed, a set of efficient and collaborative water quality management and environment regulation and control system is constructed, and comprehensive purification, constant-temperature control and efficient oxygenation of a transported water body are achieved. Ammonia nitrogen, pathogenic bacteria and organic by-products are effectively removed, the metabolic stress and oxygen consumption risk of fish bodies is reduced, the survival rate and health condition of different aquatic product species in long-distance transportation are remarkably improved, the shelf life of live fish is prolonged, and the safety and economical efficiency of the transportation process are guaranteed.

The utility model discloses a cylinder-hung protein separator, which comprises a reaction bin, a silencing assembly and a hanger assembly, the top end of the reaction bin is provided with a collecting cup, the bottom end of the reaction bin is communicated with a water pump, the side wall of the water pump is provided with the silencing assembly, the side wall of the lower section of the reaction bin is provided with an adjusting rod, and the lower section of the reaction bin is provided with the hanger assembly. A hanger assembly is mounted on the outer wall of the upper section of the reaction bin; the hanging rack assembly comprises a hanging rack main body, the hanging rack main body is mounted on the outer wall of the upper section of the reaction bin, a fixed seat is fixedly mounted on one side of the hanging rack main body, a hanging rack clamping groove is formed in the fixed seat, and a hanging rack support is mounted in the hanging rack clamping groove. The utility model relates to a protein separator, in particular to a protein separator, and solves the problems that a hanger assembly is generally needed for installation when the protein separator is used in a fish tank at present, but some existing hanger assemblies can only be installed in one direction and can only be fixed to the tank edge, so that the hanger assemblies cannot be applied to the fish tank with a frame, and then the use requirement cannot be met.

The utility model aims to provide a protein separator with rotational flow dirt collection and solid-liquid separation, which is compact in structure and high in impurity removal rate of solid-liquid separation of breeding tail water. The device comprises a mounting tank, a multi-cyclone sewage collection assembly arranged at the lower part of the mounting tank, a self-rotating cyclone assembly arranged in the middle of the mounting tank, an aeration piece arranged above the self-rotating cyclone assembly, and a foam collection outflow head arranged at the top of the mounting tank, a water outlet pipe connected with the upper portion of the installation tank is formed on one side of the installation tank, a first timing solid-liquid blow-down valve and a second timing solid-liquid blow-down valve are formed at the bottom of the installation tank, and the first timing solid-liquid blow-down valve is communicated with the middle of the multi-rotational-flow sewage collection assembly. And the second timing solid-liquid blow-down valve is communicated with the bottom of the multi-cyclone sewage collection assembly. The solid-liquid separation device is applied to the technical field of solid-liquid separation devices.

The utility model discloses an efficient denitrification and dephosphorization device for mariculture wastewater. The efficient denitrification and dephosphorization device comprises a culture water tank, a drainage pipe, a valve, a coarse filtering tank, a filtering grating, a connecting water pump and a denitrification and dephosphorization assembly, according to the utility model, soluble nitrogen and phosphorus in a water body are converted into large-particle (20-800mu m) microorganisms and algae biomass by utilizing a biofloc technology, part of large-particle filter clusters are absorbed and utilized by filter-feeding animals, part of phosphate and nitrate in tail water are absorbed by utilizing plants and large algae, and finally, a physical filtering system is utilized to filter the tail water. The residual large-particle floccules are removed by the drum filter, and then the residual large-particle floccules are disinfected and purified by the protein separator and the ozone generator and then return to the high-density circulating aquaculture system, so that the expected removal rate of ammonia nitrogen and nitrite in tail water reaches 60% or above, and the daily water change amount of the high-density circulating aquaculture system with the nitrogen and phosphorus removal component is less than 2%.

The low-resistance collecting pipe for the air floatation device is characterized by comprising a lower pipe cavity (1), a necking opening (2) and an upper pipe cavity (3), the upper end of the necking (2) is connected with the upper pipe cavity (3), and the lower end is connected with the lower pipe cavity (1); the inner diameter of the narrowest part of the necking (2) is R0, the height is H, the inner diameter of the joint of the upper pipe cavity (3) and the necking (2) is R3, and the inner diameter of the joint of the lower pipe cavity (1) and the necking (2) is R1, Hlt; r1, Hlt; r1, R2, R3, Hlt; r0, R0lt; r1, R0lt; r3; and the lower end of the necking (2) is a big-end-down horn mouth. The protein separator is provided with the collection tube. The device is simple in structure, low in cost and ingenious and ingenious in design, the efficiency is improved, and a new thought is provided.

1. The name of the design product: fish tank protein separator. 2. The use of the design product: protein separator for increasing oxygen content in fish tank water and dissolving organic matter. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. The name of the design product: seafood pool protein separator. 2. The use of the design product: the product is mainly used for storing seafood. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A self-regulating protein skimmer (10) for an aquarium, comprising a vertical lower housing (11) comprising a reaction chamber (12) for foam separation of an air / organics-containing water mixture into organics-containing foam and relatively organics-free water, a skimming pump (13) for pumping the air / organics-containing water mixture foam into the reaction chamber (12), and a skimming pump (13) for pumping the air / organics-containing water mixture foam into the reaction chamber (12). The utility model relates to a device (10) for pumping a relatively organic-free water mixture into a reaction chamber (12), an outlet (14) having an outlet area for discharging the relatively organic-free water from the reaction chamber (12), and an outlet regulator (16) for controlling the outlet area, to regulate the discharge of the relatively organics-free water from the reaction chamber (12). The protein skimmer (10) further comprises a vertical upper foam collection cup (17) mounted on the vertical lower housing (11), the foam collection cup (17) having a vertical central foam collection neck (18) in fluid communication with the reaction chamber (12), and a foam collection periphery (19) surrounding the periphery of the foam collection neck (18), the foam collecting neck (18) has a foam collecting neck inner surface (18A), a foam collecting neck uppermost edge (18B) and a foam collecting neck outer surface (18C), and the organic-containing foam column has a highly aerated foam phase and a main aqueous phase below the foam phase towards the foam collecting neck uppermost edge (18B), the foam collection periphery (19) is filled with organic-containing waste overflowing from the foam collection neck (18). The protein skimmer (10) further comprises an electrical conductivity (EC) sensor (27A, 27B) disposed in the foam collection neck (18) at a location towards the uppermost edge (18B) of the foam collection neck for sensing foam humidity in the foam phase of the organic-containing foam column, and a user-set controller (23) for controlling the sensor (27A, 27B) to control the sensor (27A, 27B). And a control means for controlling the flow rate of fluid through the protein skimmer (10) as a function of the foam humidity readings of the EC sensor.

The utility model provides an integrated circulating water aquaculture equipment, including the aquaculture pond, is connected with the filter piece through pipeline one on the aquaculture pond, is connected with the protein separator through pipeline two on the filter piece one side, is connected with the dechlorination device through pipeline three on the protein separator, is connected with the biochemical treatment pond through pipeline three on the dechlorination device. The utility model has the beneficial effect that organic pollutants contained in water are decomposed into carbon dioxide and small molecular organic matter through the biochemical treatment pond, and the treatment effect of water is good by combining the biochemical filter of the reaction of biochemical treatment pond and organic matter, thereby providing physical filtration and biochemical filtration, ensuring that the purification effect of circulating water is good, the purified water is discharged into the aquaculture pond through pipeline four, and is reused, the utility model is simple, and has the effect of multiple purification of aquaculture water, avoids the traditional effect that only physical filtration is carried out on aquaculture water, and greatly improves the purification effect of circulating water.

The application discloses a tail water treatment system, and relates to the technical field of tail water treatment, which comprises a vertical-flow sedimentation tank, a septic tank and a protein separator. The protein separator comprises a reaction bin, a collection cup, a first needle brush pump device, a gas supply device, a flow guide cylinder and a bubble stirring device. The flow guide cylinder is arranged in the reaction bin and connected with the bottom wall of the reaction bin. The bubble stirring device is arranged in the flow guide cylinder. The first needle brush pump device is arranged on the outer wall of the reaction bin. The liquid inlet end of the first needle brush pump device is communicated with the reaction bin. The liquid outlet end of the first needle brush pump device extends into the flow guide cylinder and faces the bubble stirring device. The bubble stirring device is used for stirring the bubbles in water, so that the bubbles are stirred and divided into multiple bubbles. A biological reactor is communicated with the reaction bin. The bubble stirring device can divide and stir the bubbles into more small bubbles, improves the separation effect of the protein separator, and makes the treated water meet the discharge standard or the recycling requirement.

A B.A.W.P.S. multi tower sump filter w / c.o.d. and bioskimmer is formed of glass, plastic, acrylic, or other semi-translucent material. It includes a system of filtration that will render any aquatic environment “cycleless” and has connections for internal plumbing as well as compressed oxygen diffusion or “c.o.d.”, wet / dry biologic bacteria generation and storage, lighting, protein bioskimmer filter, wet / dry trickle biologic filter, sponge prefilter, carbon prefilter, dosing system, in-sump top surface skimming, in-sump vac pipe top water skimming with skimbob, water top-off and fill feeding port with separate submerged food, water, additive and / or water treatment release port, manual or electronic feeding system, flow control manifold powerhead / (s), thermostatic system control interface, diodes, probes and sensors. The unit can stand freely on its own, or stand on its own in a separate tank. Use includes the transfer of system water be it fresh, brackish or salt, from any habitat containment chamber or area and into the filter unit for processing, and then the return of the newly treated and processed water back into the main habitat containment chamber again.

The utility model discloses a factory recirculating aquaculture teaching display model device which comprises a supporting table, and the top of the supporting table is provided with a thermostat, a protein separator, an oxygen cone, a degassing barrel, a fishpond, a vertical flow precipitator, a biological filter barrel and a PLC control display screen. A microfilter, a sterilizing lamp and a water pump are arranged on the support table between the constant temperature machine and the degassing barrel; a Roots blower, a PLC (Programmable Logic Controller) control cabinet and a tail water treatment tank are arranged at the lower part of the support table. The platform is small in occupied area and convenient to move, the aquaculture technology can be explained in a classroom in a more convenient and easy-to-understand mode, the platform can also be displayed in various exhibitions, and the platform is a display platform for aquaculture teaching.

The utility model relates to the field of protein separators, in particular to a protein separator climbing tube and collecting cup brush cleaning device, which comprises a collecting cup main body, a brush cleaning device, a brush cleaning device, a brush cleaning device, a brush cleaning device, a brush cleaning device, a brush cleaning device, a brush cleaning device and a brush cleaning device, the main shaft is rotationally connected with the top cover, a transmission arm is arranged on the main shaft, a first rotating brush roller and a second rotating brush roller are arranged on the transmission arm, the first rotating brush roller is meshed with the outer gear and used for cleaning the collecting cup body, and the second rotating brush roller is meshed with the inner gear and used for cleaning the foam climbing pipe. The protein separator climbing pipe and collecting cup brush cleaning device can clean the inner wall of the collecting cup body and the side wall of the foam climbing pipe at the same time, the cleaning efficiency is high, the first rotating brush roller and the second rotating brush roller which can rotate are used for cleaning, and the cleaning quality is good.

According to the factory-like circulating water culture device for the mandarin shrimps in the water electrolysis mode, the water electrolysis device replaces a protein separator, a biochemical treatment pond, an ultraviolet sterilization device and other large-scale devices and is used in cooperation with the microstrainer, the occupied area of water treatment facilities and equipment is greatly reduced, and the production cost is reduced. And chlorine-containing compounds generated by electrolyzed water kill pathogenic microorganisms in water, so that the energy consumption is greatly reduced, pathogenic bacteria are killed, and normal growth of cultured objects is ensured. The production cost is reduced, the profit is improved, and the pollution of tail water discharge to the environment is avoided.

The utility model discloses a water circulation and oxygenation integrated device for a gymnocypris przewalskii parent fish temporary rearing pond, and belongs to the technical field of aquaculture equipment. The device comprises an annular pool body, a filtering part and an oxygenation system, and the annular pool body forms continuous circulation by simulating natural river water flow, eliminates a stagnant water area and adapts to the migration habit of the gymnocypris przewalskii; the filtering part is composed of a first filtering tank, a second filtering tank, a protein separator, a micro-filtering tank and a clean water tank which are connected in series in a multi-stage manner, and particulate matters, dissolved organic matters and ammonia nitrogen pollutants are efficiently removed through gradient interception, adsorption and dynamic micro-filtration; the oxygenation system integrates water distribution pipe jet oxygenation and aeration pipe diffusion oxygenation, and realizes uniform distribution of dissolved oxygen in combination with water flow circulation driven by a circulating pump. According to the device, through the integrated design of an annular structure, multi-stage collaborative filtering and oxygenation circulation, the problems that a traditional breeding system is not thorough in water quality purification, uneven in dissolved oxygen, poor in ecological adaptability and the like are solved, the stress reaction of parent fishes is remarkably reduced, and the survival rate and breeding efficiency are improved.

The invention provides an aquaculture tail water treatment system, and belongs to the technical field of tail water treatment equipment. Comprising a first-stage filtering unit, a second-stage filtering unit and a third-stage filtering unit, the primary filtering unit comprises a solid-liquid separator and is used for carrying out solid-liquid separation on tail water; the secondary filtering unit comprises a filter pressing assembly and a protein separator; the filter pressing assembly is used for carrying out filter pressing on the first separation liquid to form filter pressing liquid and a filter cake; the protein separator is used for purifying the second separation liquid and the press filtrate to form a purified liquid; the third-stage filtering unit comprises a reaction tank and a filter; the reaction tank is used for disinfecting the purified liquid and degrading ammonia nitrogen to form first purified liquid; the filter is used for filtering the first pure liquid to form second pure liquid. By means of the first-stage filtering unit, the second-stage filtering unit and the third-stage filtering unit, solid particles in tail water can be recycled to form a filter cake, the filter cake is filtered to form second pure liquid, the second pure liquid is directly discharged or recycled, the situation that the tail water pollutes the environment is effectively avoided, and the utilization value of the tail water is improved.

The invention discloses a silvery pomfret large-size fry circulating water cultivation method which comprises the following steps: constructing a circulating water cultivation system, and controlling the speed of surface annular water flow in a cultivation pond to be 3-8cm / s; performing illumination and environment control; feeding bait added with compound probiotics; when ectoparasitic diseases are prevented and treated, day and night different medicated bath is implemented, copper sulfate is added in the daytime to maintain the copper ion concentration at 0.1-0.3 mg / L, a protein separator and an ozone device are started at night, and the copper ion concentration is rapidly reduced to 0.05 mg / L or below within 2-4 hours. The method comprises the following steps: adsorbing copper ions in a water body by using biofloc generated by metabolism of probiotics to form copper-containing floc, and removing the copper-containing floc by using a protein separator; the specific annular water flow keeps the copper-containing flocs suspended and conveys the copper-containing flocs to a treatment unit. The problems of rollover death and drug stress in pomfret fry breeding are solved, and the breeding survival rate is increased.

Mains operated self-regulating protein skimmer including a skimmer pump for pumping an air / organic loaded water mixture into its reaction chamber, an electrical conductivity (EC) sensor for deployment in its foam collection neck for sensing foam wetness, and a controller for controlling fluid flow rate through the protein skimmer in response to the EC sensor's foam wetness readings. Fluid flow rate can be controlled either by a variable flow DC skimmer pump and / or a motorized outlet port regulator for controlling an outlet port's outlet port area.

The utility model relates to the field of protein separators, in particular to a protein separator collecting cup cleaning structure, which comprises a collecting cup main body, a top cover and a foam climbing pipe arranged in an inner cavity, the main shaft is rotationally connected with the top cover, a connecting arm is arranged on the main shaft, a first scraping plate is arranged at one end of the connecting arm, a second scraping plate and a third scraping plate are arranged at the other end of the connecting arm, the first scraping plate abuts against the circumferential inner wall of the collecting cup body, the second scraping plate abuts against the circumferential inner wall of the foam climbing pipe, and the third scraping plate abuts against the circumferential outer wall of the foam climbing pipe. The cleaning structure for the collecting cup of the protein separator can ensure that residual foam, stains and the like on the cup wall of the collecting cup and the pipe wall of the foam climbing pipe can be completely removed, so that the cleaning effect is improved, the use performance of the protein separator is improved, and the service life of equipment is prolonged.

A liquid level prompting structure of an air floatation sewage container comprises an inlet (1), a pressure relief channel (2) and an air whistle structure (4), the inlet (1) is provided with an inlet inner end which is communicated with a sewage container; the air whistle structure (4) is provided with an air inlet end (4-1), and the air inlet end (4-1) is communicated with a sewage container; the pressure relief channel (2) is provided with a pressure relief inner end and a pressure relief outer end, the pressure relief inner end is located in the sewage container, and the pressure relief outer end is located outside the sewage container; the pressure relief inner end is lower than the opening of the inlet inner end; and the pressure relief inner end is lower than the opening of the air inlet end (4-1) of the air whistle structure (4). The sewage container is provided with the liquid level prompting structure of the air floatation sewage container. The protein separator is provided with the air floatation sewage container, and the air floatation sewage container is the sewage container. The invention is not easy to trigger by mistake, stable in work, simple in structure, easy to implement and low in cost, and provides a new technical thought.

The application discloses a spiral type circulating water aquaculture system, which comprises a plurality of aquaculture barrels, a sedimentation tank and a protein separator, a supporting shaft is arranged at the center of the bottom of the aquaculture barrel, a water inlet pipe is arranged at the upper end of the supporting shaft, a water outlet pipe is communicated with the side wall of the lower part of the aquaculture barrel, a sedimentation water inlet pipe is communicated with the upper part of the sedimentation tank, the sedimentation water inlet pipe is communicated with all the water outlet pipes, a first water pump is arranged at the middle part of the sedimentation water inlet pipe, a sedimentation water outlet pipe is communicated with the other side of the sedimentation tank, a spiral transparent disinfection pipe is communicated with the sedimentation water outlet pipe, an ultraviolet disinfection lamp is arranged at the middle part of the spiral transparent disinfection pipe, a purification water inlet pipe is communicated with the spiral transparent disinfection pipe, a second water pump is arranged at the middle part of the purification water inlet pipe, the purification water inlet pipe is communicated with the inlet end of the protein separator, a purified water injection pipe is communicated with the outlet end of the protein separator, and the purified water injection pipe is communicated with all the water inlet pipes.

The application discloses a protein separator foam intelligent extraction liquefaction device in factory aquaculture, and relates to the technical field of water treatment in factory recirculating aquaculture. The device comprises a reaction device system and a control module. The reaction device system comprises a reaction cavity, a water pump and a fan. The water pump is arranged outside the reaction cavity. The fan is arranged at the top of the reaction cavity. The water inlet of the water pump is located at the bottom of the reaction cavity, and the water outlet is located at the top of the reaction cavity. The air outlet of the fan is arranged at the top of the reaction cavity through a pipeline. The control module is connected with the water pump, the fan, a foam sensor and a liquid level sensor. Intelligent operation is realized, labor cost is reduced, and the device can be connected with one or more protein separators at the same time, so that intelligent extraction liquefaction of foam is realized.