An electrochemical deionization system that maintains an operating temperature range of a solution stream (e.g., seawater or brackish water) flowing through the cells of the electrochemical deionization system. Maintaining the operating temperature range is targeted at prolonging the lifetime of the system and increasing the overall performance of the electrochemical deionization system.

A system for transferring marine life within an aquaculture facility including a plurality of segregated storage facilities each containing water for marine life, maintained within a predetermined temperature range and supported at independent ground levels. The storage facilities are successively disposed and structured to contain marine life at different stages of growth. A transfer assembly includes a path of fluid flow interconnecting successive ones of said plurality of storage facilities in fluid communication with one another, wherein at least a majority of a length of said path of fluid flow is disposed beneath the independent ground levels at a predetermined depth, which is sufficient to facilitate maintenance of the path of fluid flow within the predetermined temperature range, via geothermal cooling. The transfer assembly may also connect a holding facility, which may be dimensioned and structured to transfer mature marine life, possibly on an on-demand basis, to the harvesting facility.

The present disclosure relates to a desalination system of photovoltaic direct-driven membrane capacitive deionization. The system includes a photovoltaic direct-driven group and a municipal power grid-connected group. The photovoltaic direct-driven group includes a photovoltaic power collection unit, a power storage unit, a direct-driven power monitoring unit, a voltage adjustment unit, and a membrane capacitive deionization water purification unit. The municipal power grid-connected group includes a grid-connected control unit, a grid busbar unit, and an intelligent detection unit.

A water sanitizing system is disclosed and includes an inner chamber and an outer chamber disposed at least partially around the inner chamber. A lens concentrates solar energy applied to a liquid within the inner chamber. A vacuum source in communication separately with the inner chamber and the outer chamber. The vacuum source controls a pressure within the inner chamber separately from the outer chamber for controlling conversion of liquid within the inner chamber to a gas. The outer chamber, also under vacuum, is an insulative layer to prevent heat loss.

Purification devices and methods remove perfluorinated compounds (PFCs) from PFC-contaminated water using temperature swing adsorption and desorption.

A method and rainwater processing system are disclosed. According to one aspect, a method includes collecting rainwater, filtering the collected rainwater, and ozonating the filtered collected rainwater to produce potable water. The method includes preparing a functional water, the preparing including adding a salt concentrate to at least a portion of the potable water within a processing tank to create a mixture.

Divalent ions are extracted from solids by leaching to form a divalent ion-containing solution. The divalent ion-containing solution is subjected to concentration to form a concentrated divalent ion-containing solution. Precipitation of a divalent ion hydroxide salt is induced from the concentrated divalent ion-containing solution. In other cases, the concentrated divalent ion-containing solution is exposed to carbon dioxide to induce precipitation of a divalent ion carbonate salt.

An automatic sewage regulation system and a regulating method are provided. The automatic sewage regulation system is disposed between preset sewage sources and a preset sewage treatment apparatus and includes an equalization tank and an automatic sewage regulating device. The automatic sewage regulating device includes sensing modules for sensing and transmitting water quality sensing values of sewage in the preset sewage sources to a control module which outputs regulating signals to water flow regulators, so that the water flow regulators can regulate flowing volumes of the sewage of the preset sewage sources according to the regulating signal, to keep a water quality sensing value of the sewage in the equalization tank within a preset range, thereby preventing the equalization tank from converging sewage having excessively-high or excessively-low water quality sensing value. As a result, burden of a preset sewage treatment apparatus can be reduced.

The wastewater treatment apparatus of present invention has an electro-coagulation unit for removing contaminants with at least one anode and at least one cathode and an electro-oxidation unit for oxidizing contaminants with at least one anode and at least one cathode wherein oxidants are electrochemically generated. Based on the type of wastewater, the apparatus can have an electro-flotation unit between the electrocoagulation unit and the electro-oxidation unit. The apparatus also has an oxidant removal unit which can have a metal ion-liberating electrode for reacting with and removing residual oxidants. In some cases, portions of effluent from the oxidant removal unit can be recirculated to the electro-coagulation unit for increased efficiency.

A sterilized water generator to control some of a plurality of electrolysis modules not to perform electrolysis on water brought into the sterilized water generator. The sterilized water generator includes a water inlet pipe through which water flows in; a water outlet pipe through which sterilized water flows out; a plurality of electrolysis modules arranged in parallel between the water inlet pipe and the water outlet pipe and configured to turn the water brought in through the water inlet pipe to the sterilized water; and a controller configured to control a forward voltage not to be applied to a first electrolysis module of the plurality of electrolysis modules, control the forward voltage to be applied to a second electrolysis module of the plurality of electrolysis modules, and change electrolysis modules corresponding to the first and second electrolysis modules of the plurality of electrolysis modules based on a lapse of time.