# US 9,751,093 B2 · Effluent treatment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,093 B2 - Document ID: US9751093B2 - Status: Granted - Kind: B2 - Application number: 14/885,322 - Filed: 2015-10-16 - Published: 2017-04-20 - Granted: 2017-09-05 - Earliest claimed: 2015-10-16 - Assignees: Cimarron Land & Cattle Company, LLC - Applicants: Cimarron Land & Cattle Company, LLC - Inventors: Richard E. Helm; Roger Kendall McGowan; Martin C. Helm - Web page: https://patentgrep.com/patent/US9751093B2 ## CPC - B03D 1/016: Macromolecular compounds - C02F 1/24: by flotation (C02F1/465 takes precedence) - B01F 23/10: Mixing gases with gases - B03D 1/1431: {Dissolved air flotation machines} - B03D 2201/002: Coagulants and Flocculants - C02F 1/40: Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16) - C02F 1/56: Macromolecular compounds - C02F 2101/32: Hydrocarbons, e.g. oil - C02F 2103/38: Polymers - B03D: FLOTATION; DIFFERENTIAL SEDIMENTATION (sedimentation in general B01D21/00; in combination with other separation of solids B03B; sink-float separation B03B5/28; detergents, soaps C11D) - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) ## Abstract A dispersion for use with an effluent treatment system, and methods of making and using such a dispersion, whereby the dispersion includes an amount of polymer substantially uniformly dispersed within an aqueous solvent; wherein the dispersion is generated by combining an amount of gas with the amount of polymer and the aqueous solvent, the amount of gas effective to substantially uniformly disperse the amount of polymer within the aqueous solvent. ## Claims ### Claim 1 A method of recovering tallow from effluent, comprising: providing a dispersion resulting from: (i) firstly combining an amount of gas with an aqueous solvent to provide an entrained gas-aqueous solvent mixture; (ii) subsequently combining said entrained gas-aqueous solvent mixture with an amount of polymer; and (iii) mixing said amount of polymer and said entrained gas-aqueous solvent mixture by applying forces consisting of mixing forces generated by said gas in the form of gas bubbles; wherein said mixing forces are effective to substantially uniformly disperse said amount of polymer within said aqueous solvent; combining said dispersion with said effluent to generate a float comprising said tallow; and recovering said tallow from said float. ### Claim 2 (depends on 1) The method of claim 1, further comprising providing said amount of polymer in a range of between about 0.1% to about 50% of said dispersion by weight. ### Claim 3 (depends on 1) The method of claim 1, further comprising providing said aqueous solvent as water. ### Claim 4 (depends on 3) The method of claim 3, further comprising providing said gas as air. ### Claim 5 (depends on 4) The method of claim 4, further comprising providing said air as air bubbles. ### Claim 6 (depends on 3) The method of claim 3, further comprising substantially uniformly dispersing said amount of polymer within said water to provide a generally homogenous polymer-water mixture. ### Claim 7 (depends on 5) The method of claim 5, wherein upon application of said mixing forces generated by said air bubbles, the molecular weight of polymeric molecules which comprise said polymer remains unchanged. ### Claim 8 (depends on 1) The method of claim 1, further comprising providing said polymer in fluid form. ### Claim 9 A method of recovering tallow from effluent, comprising: providing a dispersion resulting from: (i) firstly combining an amount of gas with an aqueous solvent to provide an entrained gas-aqueous solvent mixture; (ii) subsequently combining said entrained gas-aqueous solvent mixture with an amount of polymer; and (iii) mixing said amount of polymer and said entrained gas-aqueous solvent mixture by applying forces comprising mixing forces generated by said gas in the form of gas bubbles; wherein said mixing forces are effective to substantially uniformly disperse said amount of polymer within said aqueous solvent; combining said dispersion with said effluent to generate a float comprising said tallow; and recovering said tallow from said float. ### Claim 10 (depends on 9) The method of claim 9, further comprising combining said dispersion with said effluent within a dissolved air flotation system to generate said float comprising solids, water, and a mixture of fats, oils, and greases. ### Claim 11 (depends on 10) The method of claim 10, further comprising heating said float. ### Claim 12 (depends on 11) The method of claim 11, further comprising separating a first amount of said solids from a second amount of said solids, said water, and said mixture of fats, oils, and greases with a two-phase centrifugation system. ### Claim 13 (depends on 12) The method of claim 12, further comprising separating said second amount of said solids and said water from said mixture of fats, oils, and greases with a three-phase centrifugation system. ### Claim 14 (depends on 9) The method of claim 9, wherein the quality tolerances of said tallow corresponds to Inedible Bleachable Packer Tallow. ### Claim 15 (depends on 9) The method of claim 9, wherein said tallow has a titer minimum of at least about 40 degrees Celsius. ### Claim 16 (depends on 9) The method of claim 9, wherein said tallow has a free fatty acid maximum of less than about 5% oleic acid. ### Claim 17 (depends on 9) The method of claim 9, wherein said tallow has an M.I.U. maximum of less than about 1%. ### Claim 18 (depends on 9) The method of claim 9, wherein said tallow has a moisture maximum of less than about 2%. ### Claim 19 (depends on 9) The method of claim 9, wherein said float is separated to generate said tallow in a time period of less than about four minutes. ### Claim 20 A method of separating effluent into solids, water, and a mixture of fats, oils, and greases, comprising: providing a dispersion resulting from: (i) firstly combining an amount of gas with an aqueous solvent to provide an entrained gas-aqueous solvent mixture; (ii) subsequently combining said entrained gas-aqueous solvent mixture with an amount of polymer; and (iii) mixing said amount of polymer and said entrained gas-aqueous solvent mixture by applying forces consisting of mixing forces generated by said gas in the form of gas bubbles; wherein said mixing forces are effective to substantially uniformly disperse said amount of polymer within said aqueous solvent; combining said dispersion with said effluent to generate a float comprising said solids, said water, and said mixture of fats, oils, and greases; and separating said mixture of fats, oils, and greases from said solids and said water.