11 results about "Decantation" patented technology

The invention relates to a method for purifying a pyrolysis oil originating from the pyrolysis of waste including plastics by liquid / liquid extraction. This extraction is performed by means of a polar solvent that is immiscible with pyrolysis oil, for which a recovery rate is obtained greater than or equal to 0.95, this recovery rate being defined as the ratio of the extract volume over the initial volume of solvent, this extract being a phase containing the solvent which is immiscible with pyrolysis oil, recovered after agitation then decantation of a mixture of one part by volume of solvent with twenty-five parts by volume of pyrolysis oil at atmospheric pressure and at a temperature of 20° C.

The invention discloses a reaction product separation device and a separation method. The reaction product separation device comprises a circulating tower, a pressure pump, a cooler, a water removal tank, a dehydration tower, a feeding pump and a product tower which are connected in sequence, the product tower is connected with the circulating tower; the circulating tower is also connected with the raw material water separation tank; by adopting an operation method of coupling decantation non-sharp separation rectification and variable pressure crushing azeotropy, the separation device can be used for continuously separating reaction products of a process for preparing methyl acrylate from methyl acetate-formaldehyde in industry, and is simple in process, small in equipment number, simple and convenient to operate and suitable for industrial large-scale separation.

The present invention describes a bioreactor and a continuous flow process for water treatment and biomass production wherein the bioreactor comprises a tank (2) having an inlet (5) and an outlet (6), an aeration medium (7) and also a diversion medium (13) configured to extract clarified water and to prevent leakage of particulate biomass (11) at a decantation speed of at least 10 m / h, comprising a hollow body (14), the body has: a first inlet (15) at the bottom thereof configured to allow the entry of an aqueous fluid (9) and to return particulate biomass (11) to the tank (2); a second opening (16) laterally connected to the outlet (6) of the tank (2); and a third opening (17) located at the top and configured to allow air bubbles (10) to exit.

The application discloses a method for recovering paracetamol, which comprises the following steps: dissolving substandard paracetamol particles in water, cooling, and removing most of starch-containing accessories in the particles; since the crystal particles of paracetamol product in the system are large and easy to precipitate, the paracetamol product can be obtained by fully utilizing the cooling and standing; the paste solution formed in the heating process of the starch accessories can be effectively separated by means of simple decantation; the first clear liquid can be continuously separated by decantation after standing to obtain the second solid paracetamol; and the solid particles of the two times are combined and refined. The recovery method is simple and easy to operate as a whole, does not need to use ethanol as a solvent, is low in cost, high in recovery rate, and can provide a reference for industrial-scale recovery of substandard paracetamol particles.

Fluid delivery system for providing a flow of microvesicle containing liquid to a subject, wherein the system comprises a first fluid conduit arranged to contain microvesicle containing liquid, wherein said first fluid conduit comprises an inlet arranged to receive microvesicle containing liquid at an input flow rate and an outlet arranged to provide microvesicle containing liquid at an output flow rate to said subject, wherein the system comprises a first pumping mechanism in fluid communication with the first fluid conduit arranged to induce a varying flow rate component in said first fluid conduit for at least partially preventing decantation of the microvesicles in the microvesicle containing liquid present in the first fluid conduit.

The present invention consists of a process for removing impurities from hard water. Using chemical agents, it removes impurities by mixing a chemical preparation and employing decantation in the first stage of impurity removal. Subsequent validation of the results allows for the removal of other types of impurities present in the water, such as arsenic, cadmium, cyanide, copper, chromium, mercury, nickel, lead, and zinc. Finally, it removes contaminants and microorganisms from the following group: fats and oils, suspended solids, organic carbon, total nitrogen, total phosphorus, worm eggs, E. coli, and fecal enterococci. The resulting sediments are used as biofertilizers, and the treated water can be discharged into conventional municipal sewer systems or, if necessary, treated with ozone (O3) for human consumption.

The present invention describes a compact purifier for purifying liquid hydrocarbon fuels by physical and chemical means. The purifier includes a lid having an outlet connector that is sealingly connected to the upper part of the body by bolts and nuts. The body has a cleaning valve in its lower part and tangentially positioned nozzles are provided in its middle part, and an inlet connector is connected to the nozzles. The body includes at least one fixedly arranged device for physical decantation of liquid and solid contaminants. The purifier is characterized in that the device for physical decantation of liquid and solid contaminants is a deflection decantation element formed by a plurality of deflection plates, and the purifier includes a bactericidal alloy member that is arranged in the upper part of the deflection decantation element.

The invention relates to a solid / liquid separation decanter (1) comprising: - a settling basin (3) defining a continuous settling volume (5), - an upper structure (30), - a scraper (33) including a scraper arm (36), - fixed supports (50) of the upper structure (30) projecting from the bottom (3A) of the settling basin into the settling volume (5). The supports (50) are offset and positioned within an envelope that can be swept by the scraper arm (36) in the absence of the support. The decanter includes a rotational drive system for the scraper (33), configured to rotate the drive element alternately in a first direction and in a second direction, opposite to the first direction, along a defined angular path (a), bounded by each support (50).

The present invention relates to an installation for treating arthropod larvae, and in particular insects and more specifically ground dipteran larvae, characterized in that the separation of the solid and liquid phases is carried out by a decantation system making it possible to separate three phases (12): the outlet of the solid phase is connected to a flour dryer (60); a first liquid outlet feeds a glue water circuit; a second liquid outlet feeds the oil collection circuit, characterized in that said glue water circuit feeds equipment for treating ground larvae comprising the circuit for diluting the ground larvae and / or a glue water evaporator and / or a flour dryer. Abstract figure: figure 1

Solid / Liquid Separation Decanter and Associated Solid / Liquid Separation Method. The invention relates to a solid / liquid separation decanter (1) comprising: - a settling basin (3) defining a continuous settling volume (5), - an upper structure (30), - a scraper (33) including a scraper arm (36), - fixed supports (50) of the upper structure (30) projecting from the bottom (3A) of the settling basin into the settling volume (5). The supports (50) are offset and positioned within an envelope that can be swept by the scraper arm (36) in the absence of the support. The decanter includes a rotational drive system for the scraper (33), configured to rotate the drive element alternately in a first direction and in a second direction, opposite to the first direction, along a defined angular path (α), bounded by each support (50). Figure for the summary: Figure 1

The invention discloses a method and a system for enhancing nitrogen removal by a CASS (cyclic activated sludge system) process, the method comprises CASS post-denitrification, the CASS post-denitrification comprises a water inlet stage, an aeration stage, a stirring stage, a precipitation stage and a water decanting stage, a carbon source is added into sewage after the aeration stage is ended, and the carbon source is added into the sewage after the aeration stage is ended. And carrying out denitrification reaction by utilizing the mud-water mixing areas in the precipitation stage and the water decanting stage. According to the method for enhancing nitrogen removal through the CASS process, CASS post-denitrification is adopted, the mud-water mixing time and space in the precipitation stage and the water decanting stage are fully utilized, denitrification is more thorough, and the nitrogen removal effect of the CASS process is enhanced. According to the system disclosed by the invention, each CASS pool is provided with an independent feeding pipeline and a control system, the feeding pipeline ensures that a carbon source can be accurately and quickly fed into the CASS pool, and the control system can accurately control the feeding time and feeding amount of the carbon source according to the running state and water quality monitoring data of the CASS pool so as to adapt to different inlet water quality and treatment requirements.