# US 2017/0283290 A1 · Spiral wound filtration assembly including integral bioreactor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0283290 A1 - Document ID: US20170283290A1 - Status: Published application - Kind: A1 - Application number: 15/630,204 - Filed: 2017-06-22 - Published: 2017-10-05 - Earliest claimed: 2014-09-24 - Assignees: Dow Global Technologies LLC - Applicants: Dow Global Technologies LLC - Inventors: Steven D. Jons; Jon E. Johnson - Web page: https://patentgrep.com/patent/US20170283290A1 ## CPC - C02F 3/109: {Characterized by the shape (C02F3/104 takes precedence)} - B01D 61/04: Feed pretreatment - B01D 63/101: {Spiral winding} - B01D 63/12: comprising multiple spiral-wound assemblies - C02F 3/1268: {Membrane bioreactor systems} - B01D 2311/04: Specific process operations in the feed stream; Feed pretreatment - B01D 2311/2688: Biological processes - B01D 2313/143: on the feed side - B01D 2317/02: Elements in series - Y02W 10/10: Biological treatment of water, waste water, or sewage - 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) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract A spiral wound filtration assembly including: i) a pressure vessel comprising a feed port, concentrate port and permeate port; ii) at least one spiral wound membrane module comprising at least one membrane envelop wound around a permeate tube which forms a permeate pathway to the permeate port; and iii) a bioreactor having a cylindrical outer periphery extending along an axis (Y) from a first end to a second end, an inlet located near the first end, and an outlet located near the second end; wherein the spiral wound membrane module and bioreactor are serially arranged within the pressure vessel. ## Claims ### Claim 1 A spiral wound filtration assembly comprising: i) a pressure vessel comprising a feed port, concentrate port and permeate port; ii) at least one spiral wound membrane module comprising at least one membrane envelop wound around a permeate tube which forms a permeate pathway to the permeate port; and iii) a bioreactor having a cylindrical outer periphery extending along an axis (Y) from a first end to a second end, an inlet located near the first end, and an outlet located near the second end; wherein the spiral wound membrane module and bioreactor are serially arranged within the pressure vessel. ### Claim 2 (depends on 1) The assembly of claim 1 wherein the bioreactor has a spiral wound configuration comprising: a flat sheet having two opposing bio-growth surfaces and a feed spacer spirally wound about an axis; wherein the feed spacer defines flow channels extending along the bio-growth surfaces of the flat sheet from the inlet to the outlet of the bioreactor. ### Claim 3 (depends on 2) The assembly of claim 2 wherein the flat sheet is permeable and the two opposing bio-growth surfaces are in fluid communication with each other. ### Claim 4 (depends on 2) The assembly of claim 2 wherein the flat sheet and feed spacer are spirally wound about a hollow conduit, wherein the conduit is sealed from fluid communication with the flat sheet and feed spacer and is serially connected to the permeate tube of the spiral wound membrane module. ### Claim 5 (depends on 1) The assembly of claim 1 further comprising a plurality of spiral wound membrane modules, each comprising at least one membrane envelop wound around a permeate tube, and wherein the spiral wound membrane modules are serially arranged within the pressure vessel with a first element of the series positioned nearest to a first end of the pressure vessel and a last element of the series positioned adjacent to an opposing second end of the pressure vessel, and wherein the permeate tubes of the spiral wound elements are serially connected to form a permeate pathway which is connected to the permeate outlet, and wherein the bioreactor is arranged within said series at a location upstream of at least one spiral wound membrane module. ### Claim 6 (depends on 5) The assembly of claim 5 wherein the bioreactor is arranged within the series at a location upstream of all spiral wound membrane modules. ### Claim 7 (depends on 2) The assembly of claim 2 wherein the feed spacer of the bioreactor provides flow channels of from 0.10 mm to 1.5 mm between adjacent bio-growth surfaces of the flat sheet. ### Claim 8 (depends on 2) The assembly of claim 2 wherein the flow channels have a void volume between bio-growth surfaces that is not occupied by a solid, and wherein the void volume of the flow channels is at least 65% of the volume of the bioreactor.