A blood processing apparatus may include a heat exchanger and a gas exchanger. At least one of the heat exchanger and the gas exchanger may be configured to impart a radial component to blow flow through the heat exchanger and/or gas exchanger. The heat exchanger may be configured to cause blood flow to follow a spiral flow path.

An apparatus, system, and method to desalinate water. The apparatus comprises an outer housing with at least one inlet and two outlets, wherein contaminated water flows into the at least one inlet and purified vapor exits from a first outlet and the contaminated water with a portion removed as vapor exits from a second outlet; at least one finned tube heat exchanger inside the outer housing; a heat energy source connected to the finned tube heat exchanger causing a portion of the contaminated water in the finned tube heat exchanger to form the vapor; and an inner tube with a plurality of holes inside the finned tube heat exchanger, wherein the inner tube is connected to the first outlet, and the vapor flows through the inner tube to the first outlet and exits the thermal desalination apparatus.

An oxygenator (10) has a hollow fiber module (19), a cylindrical outer tube (22) that accommodates the hollow fiber module (19), and a sealing structure (82a, 82b) that seals a gap between an outer peripheral portion of the hollow fiber module (19) and an inner peripheral portion of the outer tube (22). The sealing structure (82a, 82b) includes an anchor structure (84a, 84b) that is formed on the outer tube (22) on an inner peripheral side near the end defining a groove recessed in an axial direction of the outer tube (22), a cutout portion (88) formed by cutting out the anchor structure (84a, 84b) on the inner peripheral side, and a sealing material (86a, 86b) with which the anchor structure (84a, 84b) and the gap are filled.

A contactor system includes a plurality of contactor panels. Each contactor panel includes a frame member and a membrane array adapted to be received within the frame member. The membrane array defines a first end portion, a second end portion, and a plurality of hollow fibers. The contactor system also includes a first manifold in selective fluid communication with the first end portion of the membrane array of each contactor panel. The contactor system further includes a second manifold in direct fluid communication with the second end portion of the membrane array of each contactor panel. The contactor system includes a controller configured to provide selective fluid communication between the first manifold and the first end portion of the membrane array of each contactor panel.

Embodiments provide methods and structures for purification or volume reduction of a brine by an advanced vacuum distillation process (AVMD) to achieve higher flux by passage of vapors through an AVMD distillation unit. In one example, brine is circulated in a tank. The tank may include one or more membrane pouches that are submerged in the circulating brine or placed above the water level of the hot circulating brine. In other embodiments the membrane pouches are outside of the tank that includes the hot circulating brine but still in communication with it. The circulating brine is heated, allowing creation of water vapor. Using a vacuum, the water vapor is drawn through the membrane, where it may be condensed and subjected to further beneficial use. This process can concentrate to levels to generate crystals or solids, which can be separated and utilized.

An apparatus, system, and method to purify produced water from a wellbore using heat energy recovery. The apparatus comprises a wellbore with a wellhead attached to the wellbore; at least one energy recapture device connected to the wellhead of the wellbore with produced water, wherein the at least one energy recapture device captures heat energy of the production fluids including produced water, and at least one distillation device connected to a heat recovery device wherein the at least one distillation device uses at least a portion of the energy from the heat energy recovery device to heat a volume of the produced water in the distillation device to remove contaminants from the produced water to create purified water. The method comprises steps to use the apparatus and the system comprises a control panel that operates at least one energy recapture device.

An approach for separating a gaseous mixture includes a multi-stage membrane system in which a rubbery membrane is operated at a low temperature. Various streams are cooled and heated in a multi-fluid heat exchanger. In specific configurations, the multi-fluid heat exchanger is cooled by using no fluids other than fluids derived from the permeate and/or residue generated in the first membrane stage.

The invention relates to an anti-blocking seawater desalination device based on graphene filtering, comprising heating device, solar heat-collecting device, fresh water condensation heat-exchange device and thermal-expansion and cold-shrinkage control valve mechanism; the heating device can fully heat and distill seawater, the sprayed seawater is distilled by graphene heat-conduction layers to improve the distillation efficiency and avoiding blocking; the distilled water vapor enters into fresh water condensation heat-exchange device to exchange heat with seawater, increasing the seawater temperature, making full use of the heat in water vapor, and increasing water vapor condensation speed; the distilled concentrated seawater enters into the thermal-expansion and cold-shrinkage control valve mechanism, the flow of seawater entering into the heating device is controlled by the concentrated seawater temperature, when the temperature is too high, the flow of the seawater entering into the heating device increases, and when the temperature is too low, the flow decreases.

Per- and polyfluoroalkyl substances (PFAS) are destroyed by oxidation in supercritical conditions. PFAS in water is concentrated in a reverse osmosis step and salt from the resulting solution is removed in supercritical conditions prior to destruction of PFAS in supercritical conditions.

A desalination and cooling system includes a single effect water-lithium bromide vapor absorption cycle (VAC) system and a forward osmosis with thermal-recovery (FO-TR) desalination system. The FO system employs a Thermo-Responsive Draw Solution (TRDS) Fresh water flows from the FS to the TRDS without application of pressure on the saline water. Afterwards, only thermal energy is required to extract fresh water from the TRDS and recover or regenerate the draw solution. The VAC system serves as a cooling source for cooling or air conditioning applications, generating waste heat as a result. The waste heat generated by the VAC system provides the thermal energy needed to recover the draw solution (DS). The VAC system can be powered by low-grade heat sources like solar thermal energy.