203 results about "Foam fractionation" patented technology

The invention discloses a seawater factory-style circulating water fish farming treatment method which comprises, removing the residual bait and excrement from the seawater flowing out of the fish pond through full-automatic conduit pipe filter apparatus, entering foam separate tank from the circulating pump to remove part of the suspended matter and protein, then removing ammonia nitrogen through biological cleaning tank, adjusting water temperature and pH, disinfecting through ultraviolet rays, oxygenation, charging the detected water into the fish pond again, thus completing a circulation.

The invention discloses an integrated circulating water culture system which comprises a culture water tank, a foam separation and degassing chamber, a biological active carbon nitration reaction chamber and a low-pressure gas dissolution chamber, and is characterized in that: one part of water from a water drainage structure of the culture water tank is discharged and led into a biological flocculating constituent culture pool from the bottom of the culture water tank, and the other part flows into the foam separation and degassing chamber through an overflow hole at the upper part of the culture water tank; the suspended particles in the culture water are adsorbed by the micro bubbles of the foam separation and degassing chamber and rise to the top of the foam separation and degassing chamber to be discharged out; the culture water flows into the biological active carbon nitration reaction chamber through the foam separation and degassing chamber and is purified by a nitration biomembrane of the biological active carbon nitration reaction chamber and drawn out from the bottom of the biological active carbon nitration reaction chamber; 90% of the culture water drawn out is directly fed into the low-pressure gas dissolution chamber, and 10% of the culture water is fed into a pipeline mixer to mix pure oxygen and ozone and then fed into the low-pressure gas dissolution chamber; and the processed culture water flows back to the culture water tank from a drainage hole at the bottom of the low-pressure gas dissolution chamber.

An industrinized aquatic product culturing technology with closed-loop circulated water system includes such steps as pumping the culture water from culture pool into drum-type solid-liquid separator, removing suspended big particles, making the water flow through a purifying channel to remove suspended small particles and part of NH4-N and NO2-N, collecting the water in a pool, pumping the water into an aerating bio-filter and floating ball type bio-filter, removing the most of NH4-N, NO2-N and COD, by-passing through foam separating-ozone disinfecting unit for removing COD and suspended fine particles while disinfecting and aerating, regulating pH value and water temp, ultraviolet disinfecting, and returning the water back into culture pool.

The technical scheme of the invention belongs to the wastewater processing field, in particular to a process for concentrating protein in soy protein wastewater by a two-stage foam separation method, comprising the following steps: 1) collecting and detecting soy protein production wastewater; 2) preheating the soy protein production wastewater; and 3) performing two-stage foam separation processby utilizing a foam separation tower. In the process, the two-stage foam separation technology is applicable to concentrating the protein in the soy protein wastewater, the concentration ratio of theprotein in primary foam separation can reach 6.0-8.0, the protein in defoaming solution is dissolved out after the concentration thereof exceeds solubility, and the dissolved protein can be directly used as a production raw material of soy protein; and the protein recovery rate in secondary foam separation is as high as possible, and the defoaming solution and the initial wastewater are mixed andadded into feed of the primary foam separation. The two-stage foam separation process can greatly improve the protein concentration ratio and enhance the recovery rate.

The invention discloses an advanced treatment process for gas field produced water, which solves the problem that in existing wastewater treatment processes, foam cannot be well controlled, calcium and magnesium ions cannot be well removed, and resources cannot be utilized. The process comprises the following treatment processes: a foam separating process; an absorption-coagulation integrated process; a two-effect evaporation process; a catalytic oxidation treatment process; and an SBR (Sequencing Batch Reactor) biochemical treatment. Through the treatment process, existing produced water with high content of slat and organic matters reaches the standards, and the treatment process disclosed by the invention is reasonable in flow, compact in equipment installation, small in occupied area and can be conveniently used together with other processes. In addition, the treatment process is low in investment expense, low in operating cost and low in comprehensive energy consumption, and the environment-friendly and social benefits are remarkably superior to those of other technical schemes.

The invention relates to a factorized totally-closed circulating aquaculture system of sea cucumbers, belonging to the technical field of aquaculture. The factorized totally-closed circulating aquaculture system comprises a special culture pond and a water treatment system; the special culture pond is a circular bead pond of which the bottom is shaped as a pan bottom, a water outlet is formed in the lowest position of the center of the special culture pond, and three to five circles of porous bottom flushing pipes are horizontally paved at the bottom of the pond; the water treatment system comprises a slow flow settling pond, a pump pond, a water lifting pump, a protein foam separator, a first-stage pollution cut biopurification pond, a second-stage degassing biopurification pond, a steam water convection oxygenation pond and a pipeline type ultraviolet sterilizer. The culture system suitable for factorized totally-closed circulating aquaculture is designed according to the biological characteristics of sea cucumbers and an aquaculture water circulation utilization technology; the daily supplement of new water is less than 5 percent during culture by using the system disclosed by the invention. Compared with a traditional water change or running water culture method, the system disclosed by the invention has the advantages that the water saving amount reaches over 95 percent; more importantly, the temperature control energy consumption in the culture process is greatly reduced and the energy is saved by over 70 percent.

A method of delivering feed, for example a paraffinic solvent treated bitumen froth, to a separation vessel, for example a froth separation unit (FSU). The feed is delivered from one or more side inlets that may be substantially normal to, and flush with, the wall of the vessel. In contrast to certain conventional feed systems used in gravity separators which use a distributor plate to widely distribute the feed with a vessel, the feed is delivered such that it flows down the inside wall of the vessel. This feed delivery is characterized by a Richardson number of greater than 1.0. Such feed delivery is particularly useful where the feed has particles with a bi-modal size distribution to be separated from an overflow stream. The gentle flow serves to mitigate the upward flux of the smaller particles, for example mineral solids, by being trapped below the larger particles, for example precipitated asphaltene aggregates.

In order to restore heavy metal polluted soil, the invention provides novel foam separation equipment for restoring the heavy metal polluted soil. The whole foam separation equipment is provided with two stages of foam separation towers, firstly, soil to be treated is placed into the primary foam separation tower, a surface active agent mixed solution is uniformly sprayed through an annular water distribution device for soaking the soil, at the same time, the aeration is carried out through a water distribution plate, heavy metals in the soil carry out complexation with the surface active agent through sufficient contact via the stripping effect, complex compounds are attached on air bubbles to be separated from the soil, the air distribution plate is opened after the primary reaction is completed, and soil particles enter the secondary foam separation tower to carry out further separation treatment and to be cleaned. The invention has the advantages of little secondary pollution and high removal rate of heavy metal.

The invention relates to a method for separating active matter from traditional Chinese medicine, which in detail is to separate saponin and other surface active substance from traditional Chinese medicine coarse extraction solution; basing the difference of physicochemical property of the component in the traditional Chinese medicine water extraction solution, applying basal principle of foam phase separation, employing four different operation mode to separate and enrich the component from the liquorice coarse extraction, the technology is characterized by the no usage of chemical agent, low cost, simple device, simple device, small investment and no pollution to environment, the method is not only suited for liquorice coarse extraction, but also for other traditional Chinese medicine extracting solution containing saponin and other surface active substance, and is a feasible and effective new technology in the traditional Chinese medicine separating engineering.

The present invention generally relates to methods for purifying and/or concentrating compounds from or in solutions and/or mixtures. In one embodiment, the present invention relates to a method for purifying and/or concentrating a compound from a solution or mixture. In another embodiment, the present invention relates to a method for purifying/concentrating a compound from a solution or mixture that utilizes, in whole or part, foam purification and/or concentration. In still another embodiment, the present invention can be used to separate, concentrate and/or purify any material, including biological products and/or biomaterials, that can be selectively bound to a binding agent, thereby yielding a complex that will readily partition onto bubble surfaces in a foam.

The invention discloses a technique and production line to separate and eliminate surface active agent foams in waste water treatment, separating foams by separating column, removing the water carried in the foams by gas-liquid separator, breaking the foams by negative pressure foam breaker, and realizing the separation and elimination by induced draft fan exhausting the foam-broken gas. It is a new method and producing device for the industries as wash, dyeing and printing and leather to treat waste water and improve environmental pollution.

The present invention provides improved methods for purifying and/or removing oily particles, and/or contaminants suspended or dissolved in water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing an oil phase from an oil/aqueous mixed phase via foam fractionation. According to the invention, a hydrophobically modified polymer that acts as an associative thickener is combined with surfactant in appropriate ratios to facilitate oil removal for water purification in any of a number of commercial, environmental and industrial applications.

The invention discloses a purification method of amine liquid, relates to a separation method of processing liquid of taking a separating machine device as characteristics, and in particular relates to an amine liquid purification method based on foam separation. The existing mechanical filtering, activated carbon adsorption and ion exchange devices for purifying the amine liquid are utilized, and a foam separator is added in front of the devices and used for removing a surface active material of causing foaming of the amine liquid. Thus, the cleaning cycle of subsequent mechanical filtering, the replace cycle of activated carbon adsorption, and the regeneration cycle of the ion exchange device are prolonged, the defects that the existing simple mechanical filtering method is poor in amine liquid purification quality, short in equipment utilization cycle, and high in production cost are overcome, and the defects of high price and serious membrane pollution of the existing membrane separation method are also overcome.

A method of delivering feed, for example a paraffinic solvent treated bitumen froth, to a separation vessel, for example a froth separation unit (FSU). The feed is delivered from one or more inlets into the side of a series of parallel plates that form a series of channels which may be either vertical or inclined at an intermediate angle. This feed inlet flow conditioning system is characterized by a Channel Reynolds number of less than 3000. Such inlet flow conditioning is particularly useful where the feed has particles with a bi-modal size distribution to be separated from an overflow stream. The low Reynolds number combined with the influence of the walls serves to mitigate the upward flux of the smaller particles, for example mineral solids, by trapping the smaller particles within a matrix of larger particles, for example precipitated asphaltene aggregates.

The invention discloses a device and a method for extracting polysaccharides from agaric polysaccharide extracting solution by foam fractionation. The device comprises a foam fractionation tower, an air supply system and a foam collector, wherein the foam fractionation tower comprises a bubbling area, a foam area and a foam collection elbow pipe; and an air distributor is arranged at the bottom of the foam fractionation tower. By the device and the process, the defects of long concentration time of the extracting solution, more energy consumption and large using amount of ethanol in the conventional process for extracting and separating the polysaccharides are overcome.

The invention discloses an industrial production method for simultaneously extracting tea seed oil and tea saponin. The industrial production method comprises the following steps: softening camellia seeds at a low temperature and separating shells and kernels to obtain camellia seed kernels; puffing the camellia seed kernels at a low temperature; extracting with an ether and alcohol homogeneous-phase mixing solvent to obtain homogeneous-phase mixing solvent extract; recycling the solvent from the homogeneous-phase mixing solvent extract; washing with water and separating by a centrifugal machine to obtain an alcohol phase and an ether phase; after recycling the solvent from the alcohol phase, separating the solvent by a foam separation tower and drying in vacuum to obtain the finished-product tea saponin; and after recycling the solvent from the ether phase, refining to obtain the tea seed oil, and adding alkali liquid to remove soap, de-coloring, deodorizing and winterizing in sequence to obtain the finished-product tea seed oil. According to the industrial production method, low-molecular-weight ether and low-molecular-weight alcohol can be mutually dissolved so that a homogeneous-phase mutually-soluble system is formed, and the tea seed oil and the tea saponin are effectively extracted; and meanwhile, tea seed meal with higher protein content also can be obtained, an application range of the camellia seeds is further expanded, the investment of extraction equipment is effectively reduced and the production cost is reduced.

The invention relates to a method for removing overproof iron and manganese from underground seawater and is characterized in that: underground seawater is pumped by a water pump and firstly flows through a foam separator to be treated; during the treatment, ozone O3 is pumped in for aeration, the strong oxidizing property of the ozone is used for oxidizing the bivalent manganous ions and/or bivalent ferrous irons which are difficult to be oxidized in water into insoluble precipitate, and the formed precipitate is removed by the interception, adsorption and filtration of a sand filter; the treated water is further filtered and adsorbed by mature manganese sand so as to remove the overproof iron and manganese from the underground seawater. The invention also discloses a device for removing the overproof iron and manganese from the underground seawater which is suitable for the removal method. The method and the device in the invention for removing the overproof iron and manganese from the underground seawater have rapid treatment, economical and applicable properties, small occupied space and convenient operation and management, can effectively remove the heavy metals in underground seawater such as iron, manganese, and the like, and break through technical bottleneck which affects and limits the normal production of aquaculture for a long time.

The invention discloses a method for separating rare earth by using two-inlet three-outlet full-load fractionation and extraction. According to the method, P507 serves as a rare earth extraction agent, rare earth chloride serves as a raw material, a third outlet is formed in a scrubbing section of a two-inlet three-outlet fractionation and extraction system, and an acid extraction section which takes N235 as an acid extraction agent and takes TBP as a demulsifying agent is arranged between the scrubbing section and the stripping section. According to the acid extraction action of N235, side effects of hydrogen ions are eliminated, so that the rare earth separation coefficient is not reduced, and the extraction amount of rare earth is not lower than the rare earth saponification amount. Compared with the conventional two-inlet three-outlet fractionation and extraction process, the method disclosed by the invention has the advantages that the acid-base consumption in the rare earth separation process can be greatly reduced, the consumption of alkaline reagents is reduced by 54.6-58.8 percent, and the consumption of hydrochloric acid is reduced by 16.1-23.7 percent; the wastewater discharge amount in the rare earth extraction and separation process is greatly reduced, and the greening degree of rare earth separation is greatly improved; and moreover, the grade number of the extraction tank can be reduced by 9.5-24.6 percent, and the total investment of the rare earth extraction and separation process is reduced.

The invention relates to a preparation method of tara industrial tannic acid. In the preparation method, tara powder is taken as a raw material, the problems of filtration, sol, superfine fiber particles, undissolved substances, high non tannis and the like in the producing and processing technology of tara tannis are successfully solved through combination and coupling technologies such as double dynamic lixiviation, spiral sedimentation centrifugal separation (horizontal type spiral unloading centrifugal separation), foam separation, sedimentation separation, plate-frame pressure filtration and the like and equipment processing, so as to obtain the qualified tara industrial tannic acid. The preparation method has the advantage of advanced technology; and by using the preparation method, low-temperature, efficient and industrialized production, combination and coupling extraction and a novel solid-liquid separation technique of the tara powder are achieved.

The invention provides a water-saving marine fish culture water purification plant which comprises a drain outlet arranged in the center of a fish pond and a mechanical foam separator arranged in thefish pond, wherein outlet water flow of a water outlet of the mechanical foam separator pushes a water body in the fish pond to rotate around the drain outlet along the flowed water direction of the mechanical foam separator, sewage is drained from the drain outlet through a sewage pipe, and foam which is rich of tiny suspended particles and soluble organic substances and is generated by the mechanical foam separator is drained from a pipeline on the lateral wall of the fish pond; by utilizing push flow, oxygenation and other functions of the mechanical foam separator, on one hand, the foam rich of a large quantity of tiny suspended particles and soluble organic substances in the fish pond is drained, and on the other hand, sewage such as uneaten food, fish feces, and the like deposited atthe bottom of the fish pond can be collected to the drain outlet through push flow to drain. The invention has the oxygenation function and can completely meet the requirement on oxygen under the condition of 8-10kg/m<2>.

The invention provides a defoaming device and a wall-breaking foam separating and purifying system containing the same, wherein the defoaming device comprises a first defoaming chamber and a second defoaming chamber which are integrally formed; the first defoaming chamber is cylindrical, a feeding pipe is arranged on the side wall of the first defoaming chamber and the lower end of the feeding pipe is connected with a liquid distributor in a sealing and sliding manner; the liquid distributor is connected with the inner wall of the first defoaming chamber by a bracket in a sliding manner; the first liquid distributor can rotate relatively to the lower end of the feeding pipe; a rotatable defoamer is arranged under the liquid distributor and a first filtering net is arranged under the defoamer; a first discharging port is arranged in the lower end of the first defoaming chamber, and is communicated with the lower end of the second defoaming chamber. The defoaming device provided by the invention has the beneficial effects that by various modes such as multiple extrusion and crushing, chemical removal and physical collection and the like for foams, the foams can be thoroughly eliminated.

The invention relates to a multistage continuous precipitation and concentration type salt fractionation process method. By utilizing a multistage continuous precipitation and concentration type salt fractionation process, each stage of processing unit can be continuously used, precipitable inorganic salt is removed by virtue of a chemical precipitation method, and monovalence salt and high-valence salt are fractionated by virtue of nanofiltration salt fractionation; by concentrating, the precipitation efficiency and the salt fractionation efficiency can be improved, the concentration of concentrated water can be increased, and recyclable clean water can be obtained; and by treating wastewater by virtue of a first-stage treatment unit, partial recycle water, high-purity and high-concentration monovalence salt, precipitated inorganic salt and nanofiltration concentrated water can be obtained, the nanofiltration concentrated water is mixed with raw water, and mixed water enters a second-stage treatment unit again and is subjected to precipitation, concentration and salt fractionation, so that precipitable substances can be adequately precipitated, and meanwhile, a relatively good separation effect can be achieved through nanofiltration.

The invention discloses a method for processing and recycling aquaculture water in an intensive culture pond, which comprises the following steps: (1) performing oxygenation measures, and then gathering pollutants in a central sewage draining exit; (2) arranging a discharge pipe at the central sewage draining exit, wherein the discharge pipe is communicated with a gate of a drainage sluice; (3) pumping sewage in the pond from a pump pipeline by using pumping equipment; (4) separating the sewage by a foam separator; and (5) dealing with pathogens in the obtained clean water by an ozone generator and then discharging the clean water to the pond for recycling, collecting the obtained sewage and then carrying out biochemical treatment on the sewage, after the sewage is up to the standard, discharging the sewage. In the intensive culture pond implementing the technology of the invention, the aquaculture water consumption can be reduced by 70 to 80 percent, the sewage discharge is reduced, the environmental pollution is alleviated, and the aquaculture output is raised; and meanwhile, the method of the invention is beneficial for cutting off the horizontal transmission route of the pathogens, and can be used for processing and recycling the water in the intensive culture ponds for culturing the economic aquatic species such as fishes, prawns, macrobrachium rosenbergii and crabs, and the like in the process of cultivation, therefore, the method is helpful for the healthy and sustainable development of the aquaculture industry, and has high use value.

The invention discloses a preparation method for multistage separation extraction of earthworm active proteins and a method. The preparation device comprises a constant temperature foam separating column, an air pump, an air distributer, a rotor flowmeter and a foam collection device. The preparation method comprises the following steps: firstly, collection and detection of an earthworm protein homogenate material liquid is carried out; secondly, the earthworm protein homogenate material liquid is subjected to pretreatment; thirdly, first stage foam separation is carried out; fourthly, second-stage foam separation is carried out. A two-stage foam separation technology is established at a high temperature based on influences on earthworm active protein foam separating effects, and the two-stage foam separation technology can raise the enrichment ratio and can raise the recovery rate.