Embodiments of the invention provide systems and methods for water treatment and/or desalination.

The present invention relates to a salt recovery solution and to a process for separating a salt from an aqueous solution. The present disclosure also relates to a salt recovery solution and to its use to concentrate a salt or brine solution by recovering water therefrom. The salt recovery solution suitable for recovering a salt from an aqueous solution comprises at least one tertiary amine containing compound; and at least one enolisable carbonyl.

A system for flue-gas hydrate-based desalination using LNG cold energy belongs to the field of hydrate technology application. The CO.sub.2 in the flue-gas is captured based on the hydrate formation. Two stage formation chambers are set to improve the hydrate formation. The two steps to purify the hydrates respectively are the gas separation and the liquid separation. The two methods of hydrate dissociation to realize the recycling of the waste heat of flue-gas and the CO.sub.2 are the heat-exchanged and the exhausted. The present invention realizes the integrated CO.sub.2 capture and seawater desalination with a proper structure and a subtle system and solves the cold energy source for hydrate-based desalination by means of using LNG cold energy. The two stage formation chambers solve the capture of CO.sub.2 in the flue-gas and guarantee the hydrate formation amounts. The two types of dissociation chambers decrease the heat emission by using the waste heat of flue-gas and realize the recycling and storage of CO.sub.2. The system will not be affected by the changes of seasons and environments and has a strong carrying capacity for the flue-gas source change. It is a system with great application value realistic.

The present disclosure provides a system for extracting potable water from saline water. The system includes a pre-treatment unit configured to receive the saline water from a reservoir, and configured to heat the saline water to a predetermined temperature. An evaporator is coupled to the pre-treatment unit for receiving the heated saline water, and includes a housing for receiving the heated saline water, a porous material disposed in the housing and an evaporator gas port. The evaporator gas port routes gas into the housing via the porous material, and disperses to form gas bubbles. The gas bubbles induce turbulent motion within the housing for converting the heated saline water into the mixture of the water vapors and the concentrated saline water. Further, a condenser is coupled to the housing for receiving the mixture of the gas and the water vapors, and configured to condense water vapors to form potable water.

The present invention is related to methods for recovering high purity potassium based salts from brine using carbon dioxide as one of the major consumables. The method of the present invention is zero waste/effluent method which can be effectively used for the preparation of customized fertilizer compositions containing primary, secondary and micro-nutrients, and optionally other chemicals necessary for healthy growth of crops.

A reverse osmosis system and method of operating the same includes a membrane housing comprising a reverse osmosis membrane therein. The membrane housing has a feed fluid input, a brine outlet and a permeate outlet; The system further includes a charge pump, a plurality of valves and a tank having a volume comprising a movable partition dividing the volume into a first volume and a second volume. The plurality of valves selectively couples the charge pump to the first volume or the second volume and the brine outlet to the second volume or the first volume respectively.

The systems and methods described herein relate to use of a reverse diffusion system for removal of dissolved ions from a fluid, for example, salt ions. Specific embodiments include a system for desalinating salt water to produce potable water. The systems and methods can include pulsing low levels of electricity via electrodes in a scrolling pattern, so as to sweep the ions across a unit.

The disclosed embodiments relate to a system that performs low-temperature desalination. During operation, the system feeds cold saline water through a liquid-cooling system in a computer data center, wherein the cold saline water is used as a coolant, thereby causing the cold saline water to become heated saline water. Next, the system feeds the heated saline water into a vacuum evaporator comprising a water column having a headspace, which is under a negative pressure due to gravity pulling on the heated saline water in the water column. This negative pressure facilitates evaporation of the heated saline water to form water vapor. Finally, the system directs the water vapor through a condenser, which condenses the water vapor to produce desalinated water.

The disclosed embodiments relate to a system that performs low-temperature desalination. During operation, the system feeds cold saline water through a liquid-cooling system in a computer data center, wherein the cold saline water is used as a coolant, thereby causing the cold saline water to become heated saline water. Next, the system feeds the heated saline water into a vacuum evaporator comprising a water column having a headspace, which is under a negative pressure due to gravity pulling on the heated saline water in the water column. This negative pressure facilitates evaporation of the heated saline water to form water vapor. Finally, the system directs the water vapor through a condenser, which condenses the water vapor to produce desalinated water.

Described herein are methods and compounds for extracting water from an aqueous solution. For example, some embodiments include method for extracting water from an aqueous solution, comprising contacting the aqueous solution with a compound comprising one or more carbonyl moieties having an equilibrium constant for a hydration of the carbonyl moiety of at least about 0.5; separating a composition comprising the hydrated compound from the aqueous solution; and reacting the hydrated compound to obtain water.