Methods and systems directed to recovery of lithium (e.g., lithium salts) from liquid streams are provided. In some embodiments, methods relate to obtaining lithium (e.g., as a solid lithium salt) by removing at least a portion of liquid from a feed stream to form a concentrated stream with respect to solubilized lithium cations. Liquid removal may include transporting at least a portion of the feed stream to an osmotic unit and/or a humidifier. Some methods include removing impurities (e.g., non-lithium cations) from the concentrated stream (e.g., via precipitation and/or crystallization). In some embodiments, solutions containing solubilized lithium cations and anions are electrochemically-treated such that first solubilized anions are replaced with second, different anions. In some embodiments, solid lithium salt containing at least a portion of the lithium cations and the second anions is obtained (e.g., via precipitation and/or crystallization following concentration of the electrochemically-treated solution in a humidifier).

Methods, systems, and apparatus, relate to a method for carbon capture from sea water. A first source of sea water into a reverse osmosis chamber. Reverse osmosis is performed on the sea water to produce fresh water and brine. The brine is provided to an electrolyzer. A current is passed through the brine and fresh water, thereby producing a hydroxide solution in a cathode chamber of the electrolyzer. The hydroxide solution is collected and placed into a contacting chamber and new sea water introduced. Precipitates are produced comprising at least calcium carbonate and magnesium carbonate.

According to one embodiment, there is provided a carbon dioxide fixation system includes an electrolytic cell and a settling tank. An electrolytic cell electrolyzes seawater to generate sodium hydroxide (NaOH). A settling tank mixes the sodium hydroxide generated in the electrolytic cell, concentrated seawater, and carbon dioxide (CO.sub.2) to precipitate magnesium carbonate in which the carbon dioxide is fixed to magnesium (Mg) contained in the concentrated seawater.

The present invention concerns a method for separation of (a) potato proteins and insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of: (i) providing a potato fruit juice or a derivative thereof, comprising potato proteins; and insoluble fibers; and one or more first salts; and phenolic and/or glycoalkaloid compounds; (ii) subjecting the potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first retentate and a first permeate; and (iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and insoluble fibers.

The present invention further concerns a potato fruit juice product comprising potato protein and insoluble fibers, such as a potato fruit juice product obtainable by the method according to the invention.

The present invention concerns a method for separation of (a) potato proteins and insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of: (i) providing a potato fruit juice or a derivative thereof, comprising potato proteins; and insoluble fibers; and one or more first salts; and phenolic and/or glycoalkaloid compounds; (ii) subjecting the potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first retentate and a first permeate; and (iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and insoluble fibers.

The present invention further concerns a potato fruit juice product comprising potato protein and insoluble fibers, such as a potato fruit juice product obtainable by the method according to the invention.

Methods and devices are disclosed for a separation device. A separation device includes a separation module having a separation membrane separating an interior of the separation module into a retentate compartment and a permeate compartment. The retentate compartment includes at least one retentate channel, a feed port fluidly coupled to the at least one retentate channel and a retentate port. The permeate compartment includes at least one permeate channel disposed within the permeate compartment and a permeate port fluidly coupled to the at least one permeate channel, a retentate collector fluidly connected to the retentate port. The device further includes a feed reservoir, a permeate reservoir, a fluidic gate located between the feed reservoir and the separation module, a vent located between the retentate channel and the permeate channel end adjacent the adjacent the retentate port and a pressure differential source applied across the separation module.

The invention concerns a method for the separation of potato proteins from one or more first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice, said method comprising the steps of: (i) providing a potato fruit juice comprising potato proteins, one or more first salts and phenolic and/or glycoalkaloid compounds; (ii) subjecting said potato fruit juice to a first cross-flow membrane filtration process wherein at least a portion of the first salts and at least a portion of the phenolic and/or glycoalkaloid compounds migrate across the membrane into a first permeate and the potato proteins are retained in a first retentate; (iii) adding one or more second salts and water to the first retentate, while continuing the membrane filtration process, to create a diafiltrate containing at least a portion of said phenolic and/or glycoalkaloid compounds and the added second salts and a retentate; and (iv) subjecting the first permeate and/or said diafiltrate from said first cross-flow membrane filtration process to a second cross-flow membrane filtration process.

The invention concerns a method for the separation of potato proteins from one or more first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice, said method comprising the steps of: (i) providing a potato fruit juice comprising potato proteins, one or more first salts and phenolic and/or glycoalkaloid compounds; (ii) subjecting said potato fruit juice to a first cross-flow membrane filtration process wherein at least a portion of the first salts and at least a portion of the phenolic and/or glycoalkaloid compounds migrate across the membrane into a first permeate and the potato proteins are retained in a first retentate; (iii) adding one or more second salts and water to the first retentate, while continuing the membrane filtration process, to create a diafiltrate containing at least a portion of said phenolic and/or glycoalkaloid compounds and the added second salts and a retentate; and (iv) subjecting the first permeate and/or said diafiltrate from said first cross-flow membrane filtration process to a second cross-flow membrane filtration process.

The present invention concerns a method for separation of (a) potato proteins and optionally insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of:

(i) providing a potato fruit juice or a derivative thereof;

(ii) subjecting said potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first permeate and a first retentate;

(iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate being a diafiltrate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and optionally insoluble fibers;

wherein the pH of the first retentate and the second retentate remains within the range of 4.5 to 8.5 during step (ii) and step (iii), said method further comprising a step of eliminating or reducing enzymatic activity.

The present invention concerns a method for separation of (a) potato proteins and optionally insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of:

(i) providing a potato fruit juice or a derivative thereof;

(ii) subjecting said potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first permeate and a first retentate;

(iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate being a diafiltrate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and optionally insoluble fibers;

wherein the pH of the first retentate and the second retentate remains within the range of 4.5 to 8.5 during step (ii) and step (iii), said method further comprising a step of eliminating or reducing enzymatic activity.