A system and method for improved fermented beverage concentrate is described. One embodiment includes a method for producing a fermented beverage concentrate, the method comprising: fermenting a first fermentable aqueous product to produce a base product; and performing a nesting process on the base product, wherein the nesting process comprises: a concentration phase wherein at least a portion of the base product is passed through a separation system and a retentate is returned to the base product to produce a nesting solution, a water nest wherein water is added to at least a portion of the nesting solution and passed through the separation system, and a fermentable aqueous product nest wherein a second fermentable aqueous product is added to at least a portion of the nesting solution and passed through the separation system to increase the concentration of the nesting solution.

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

Producing high purity lithium solution from a source brine containing at least 1 mg Li/kg brine, preferably 10 mg/kg, more preferably 25 mg Li/kg brine; treating the source brine, if necessary in pretreatment steps; processing the treated brine in a lithium adsorption step; after the adsorption step, desorbing the adsorbed lithium in a desorption step; after the desorption step, treating the desorption effluent in an enrichment step. Specified optional steps and new features can be used to increase lithium concentrations and purity.

System and process for concentrating dissolved solids in an aqueous solution. The system contains a first nanofiltration unit, a second nanofiltration unit in fluid communication with the first nanofiltration unit, and a reverse osmosis unit. Each nanofiltration unit may contain a plurality of nanofiltration membranes. The plurality of nanofiltration membranes may include a first nanofiltration membrane located upstream from a second nanofiltration unit where the first nanofiltration membrane has a higher salt rejection and higher water rejection rate than the second nanofiltration unit.