Patent ID: 11865498
Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 8:
9. A recursive concentrate reduction membrane system, comprising: a first stage including two or more membranes in fluidic communication and connected in series with one another selected from the group consisting of: a reverse osmosis membrane and a nanofiltration membrane, wherein the system is configured to introduce a leachate to the first stage, wherein the system is configured to separate the leachate into a concentrate and a permeate and,
a second stage including two or more membranes in fluidic communication and connected in series with one another selected from the group consisting of: a reverse osmosis membrane and a nanofiltration membrane, wherein the first stage and the second stage are in fluidic communication, wherein the system is configured to introduce the concentrate to the second stage to separate the concentrate into a second stage concentrate and a second stage permeate, wherein the second stage is configured to operate at about 300 psi or less pressurized, wherein the system is configured to introduce the stream of second stage permeate to the leachate while the second stage concentrate is disposed of or recirculated; and a surge tank is configured to store the second stage concentrate and permeate to form a stock and the surge tank is configured to introduce the stock to the leachate.