Membrane system to treat leachate and methods of treating leachate

摘要

Embodiments of the present disclosure provide for systems for removing contaminants from a leachate, methods of removing contaminants from a leachate, and the like.

主权项

1. A membrane system, comprising:
a first stage including two or more reverse osmosis membranes in fluidic communication and connected in series, wherein the system is configured to introduce a leachate to the first stage, wherein the first stage is configured to separate the leachate into a first stage concentrate and a first stage permeate; a second stage including two or more reverse osmosis membranes in fluidic communication and connected in series, wherein the first stage and the second stage are in fluidic communication, wherein the system is configured to introduce the first stage permeate to the second stage, wherein the second stage is configured to separate the first stage permeate 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; a filter in the first stage configured to prefilter the leachate prior to introduction of the leachate to the reverse osmosis membranes; a one-micron filter in the second stage configured to prefilter the first stage permeate prior to introduction of the first stage permeate to the second stage membranes; and a surge tank configured to receive second-stage permeate, wherein the surge tank is in fluid communication with the second stage and stores the second stage permeate until a specified volume is reached, wherein the system is configured to discharge the second stage permeate stored in the surge tank from the system.