An apparatus (10, 110, 210, 310) for the separation and recovery of CO.sub.2, from air, by a cyclic adsorption/desorption process using a loose particulate sorbent for gas adsorption. The apparatus has a plurality of adjacent, parallel, spaced-apart layers (24, 124, 224, 324), each having a stiff frame supporting a flexible, gas-permeable fabric enclosure for the sorbent. The gas inlet (14, 114, 214, 314) and outlet (18, 118, 216, 316) of the apparatus are on its axially opposite sides, and each layer (24, 124, 224, 324) extending axially within the apparatus. The recovered CO.sub.2 can be either supplied to an enclosed space, recycled to an enclosed space, from which the CO.sub.2 had been separated, or vented to the exterior of the latter enclosed space.

A water ozonation system (18) that receives source water (16) from a water source (14) and converts it to ozonated water (20) for use in a washing machine (12) includes a system body (30), an ozone generator (38), a sensor assembly (21), and a controller (46). The system body (30) receives the source water (16) from the water source (14). The ozone generator (38) is configured to generate ozone. The ozone generator (38) is coupled the system body (30). The sensor assembly (21) is also coupled to the system body (30). The sensor assembly (21) is configured to sense at least one ambient environmental condition and generate at least one electronic data signal based on the sensed at least one ambient environmental condition. The controller (46) receives the at least one electronic data signal from the sensor assembly (21) and regulates a level of ozone that is generated by the ozone generator (38) based at least in part on the at least one electronic data signal.

In some embodiments, a multistage scrubber that includes a plurality of stages, each stage comprising one or more scrubbing modules having adsorbents configured to adsorb and remove molecules from a flowing mixture of gas traversing the multi-stage scrubber is disclosed. The sorbents may be used in repeatable adsorption-regeneration swing cycles including concentration swing adsorption (CSA) cycle, temperature swing adsorption (TSA) cycle and pressure swing adsorption (PSA) cycle.

A device for the production of water on board a vehicle comprising a duct, where an air flow flows; a tank, which contains a quantity of adsorbing material and is arranged along the duct; a first and a second adjustment valve for the adjustment of the duct, which are arranged upstream and downstream, respectively, of the tank and are movable between an opening position, in which the air flow can flow towards the tank, and a closing position, in which the air flow cannot flow towards the tank, and vice versa; wherein the first and the second adjustment valve are controlled in a synchronous and concordant manner; and a heating element, which is designed to heat the adsorbing material when the first and the second adjustment valve are in the closing position.

The present disclosure relates to a gas purification apparatus and a trace substance detection device. The gas purification apparatus includes a first purification component, a second purification component and a switching component, wherein the switching component can be switched between a first state and a second state, the first purification component and a component to be purified form a gas purification loop in the first state, and the second purification component can provide a regeneration gas for the first purification component in the second state, so that water vapor and impurities in the first purification component are discharged to outside. In the gas purification apparatus, the filtered air is used as the regeneration gas to prevent secondary pollution in a recycling process of the purificant; furthermore, by means of the state switching function of the switching component, the mutual interference between the two working states of purification and regeneration can be prevented, and all the above advantages can improve the reliability of the recycling of the purificant, thereby optimizing the performance and the service life of the gas purification apparatus.

A dehumidifier for air is provided. The dehumidifier includes a housing with an inlet for process air, an outlet for process air, and an opening for regeneration air. The dehumidifier includes a dehumidification element, a fan for bringing process air to flow through at least a first portion of the dehumidification element, and a heating element to heat a part of process air flowing through the dehumidification element for regeneration of the dehumidification element by using the heated process air. A controller controls the amount of air that flows though the outlet for process air and the opening for regeneration air and the sensor/meter to calculate consumed power for the heating element, wherein the heating element is a PTC heater. The controller allows a user in a simple way to adjust the operating parameters to a desired operating mode.

A chemical substance concentrator is configured to concentrate a chemical substance contained in a gaseous sample. The concentrator includes a flow passage having a hollow part allowing the gaseous sample flows through the hollow part, first and second electrodes disposed on an inner wall of the flow passage, an electrode wiring connected to the first and second electrodes, a material layer disposed on the electrode wiring, and an adsorbent disposed on the material layer. The adsorbent is configured to adsorb the chemical substance and to desorb the adsorbed chemical substance. The chemical substance concentrator is capable of efficiently desorbing the adsorbed chemical substances.

A gas separation unit is disclosed for the separation of a first gas from a mixture containing said first gas as well as further gases by a cyclic adsorption/desorption process using a loose particulate sorbent material for gas adsorption. The plurality of particulate active material constructs are arranged in at least two stacked layers that are mounted on a stiff rectangular circumferential frame. Each layer of the particulate active material construct includes two sheets of a flexible fabric material which is hydrophobic and gas permeable but impermeable to a loose particulate active material for gas adsorption. A plurality of tubes is provided for a heat exchange fluid within the frame. The frame structure is provided with a plurality of holes through which the plurality of tubes penetrate.

An enclosure for housing electronics, including a housing portion defining an inner volume, an aperture formed through the housing portion, and a water selective membrane operationally connected to the aperture and positioned to selectively pass water molecules from the inner volume to an oppositely disposed exterior environment to maintain dried air within the inner volume. The enclosure of may further include an electronics package disposed within the inner volume, a Joule heater disposed within the inner volume, a pump operationally connected to the inner volume to urge water molecules across the membrane, a sensor operationally connected to the inner volume, and/or a microprocessor operationally connected to the sensor, to the pump, and/or to the Joule heater.

An apparatus (10,110, 210, 310) for the separation and recovery of CO.sub.2, from air, by a cyclic adsorption/desorption process using a loose particulate sorbent for gas adsorption. The apparatus has a plurality of adjacent, parallel, spaced-apart layers (24,124, 224, 324), each having a stiff frame supporting a flexible, gas-permeable fabric enclosure for the sorbent. The gas inlet (14,114, 214, 314) and outlet (16,116, 216, 316) of the apparatus are on its axially opposite sides, and each layer (24,124, 224, 324) extending axially within the apparatus. The recovered CO.sub.2 can be either supplied to an enclosed space, recycled to an enclosed space, from which the CO.sub.2 had been separated, or vented to the exterior of the latter enclosed space.