A fog-based self-powered system for collecting atmospheric water and generating electricity is presented. The system includes a mesh-based fog harvester for accumulating water droplets from atmospheric moisture. A droplet distributor receives accumulated water droplets from the mesh-based fog harvester. A droplet electrical generator harvests energy from the water droplets accumulated in the droplet distributor. The droplet electrical generator includes an electret surface for receiving the water droplets from the droplet distributor and at least two electrodes. A water reservoir receives water droplets from the droplet electrical generator.

A system for collecting water may include a base and a first arm connected to the base. The first arm may have a first base portion connected to the base and a first extension portion opposite the first base portion. The system may further include a grid extended between the base and the first extension portion. The grid may include a set of hydrophilic fibers extending substantially parallel to the base and a set of hydrophobic fibers intersecting with the hydrophilic fibers.

The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.

An exhaust system for an industrial washer is proposed. The exhaust system comprises a conduit that can be coupled to an exhaust air outlet of a washer. A condenser is coupled to the conduit and configured to cool and to extract humidity from the exhaust air. A filter housing with removable filter is connected to the condenser and configured to filter said exhaust air. A fan with an exhaust outlet is connected to the filter housing. A controller is configured to control at least the fan to extract the exhaust air from the washer outlet through the conduit, condenser and filter housing and to eject dried and cooled exhaust air from said exhaust outlet. By reducing the humidity and temperature of the exhaust air, the condenser improves the efficacy and lifetime of the filter. The effective and reliable removal of contamination is thus ensured while the need to further process the waste air is obviated.

A method is described for reducing contrails during operation of an aircraft (100, 100) having a heat engine 10. The method includes inducing a condensation of moisture contained in the exhaust gas (A) of the heat engine by mixing at least a portion of the exhaust gas with ambient air (U) of the aircraft as well as separating the condensed-out water on the aircraft. Also described is an aircraft (100, 100) having a heat engine (10). The aircraft includes at least one nozzle (30) which is adapted for conducting exhaust gas (A) from the heat engine of the aircraft at least partially into ambient air (U) of the aircraft and thus to produce a gas mixture, and at least one separator device (40) for separating condensed-out water from the gas mixture.

A drying apparatus includes a body and a rotatable foot pad located on the lower part of the body to dry a user's feet. An air inlet is provided, and a flow generator to receive inlet air from the air inlet and generate an airflow to the top surface of the foot pad.

Water generation systems and methods of generating water from air are disclosed herein. Systems for generating water from air can comprise a solar thermal unit comprising a hygroscopic material, composite or assembly configured to capture water vapor from air during a loading cycle and release water vapor to a working fluid during an unloading cycle. Water generation systems can further include a condenser for condensing water vapor from the working fluid to produce water. Methods for generating water from air disclosed herein can comprise receiving a system operational parameter from a loading and/or unloading cycle. Methods of operation can also include determining a loading and/or unloading system operational setpoint based on the system operational parameter. During a loading cycle, the method includes flowing ambient air through the hygroscopic material, composite or assembly to capture water vapor from air.

A condensate neutralizer system for treating condensate of a condensate generating device, the condensate neutralizer system including a container having an inlet and an outlet, the inlet is configured to receive condensate from the condensate generating device, the container is configured to contain a condensate neutralizing material useful for treating the condensate and the outlet is configured to drain condensate treated with the condensate neutralizing material; a controller; and a pH meter functionally connected to said controller, the pH meter is configured to take pH measurements of the treated condensate, the measurements are configured to be compared to a fault pattern, wherein the fault pattern is defined by a condition where the pH measurements are lower than a pre-determined pH level and if a fault is determined to exist, a warning is raised or a delivery of replenishment of the condensate neutralizing material is initiated.

A vapor separation system including a cooler having an inlet configured to receive an air-oil-water mixture, and an outlet configured to discharge separated oil and water in two different phases of matter. A first sensor is at the outlet of the cooler. A controller is communicatively coupled to the cooler, wherein the controller is configured to receive temperature feedback from the first sensor, and increase or reduce the amount of cooling, with the cooler and based on the temperature feedback, the oil-water mixture to a separation temperature configured to liquefy at least a portion of the oil in the air-oil-water mixture, while maintaining at least a portion of the water in the air-oil-water mixture in a vaporized state.

A staggered and crossed heat storage adsorption bed and a seawater desalination waste heat storage system are provided, which relate to the field of seawater desalination and the technical field of thermochemical adsorption heat storage. The adsorption bed includes a bed body, wherein an adsorption cavity is arranged in the bed body; two sides of the adsorption cavity are respectively communicated with an inlet cavity and an outlet cavity; the adsorption cavity includes a vacuum heat insulation layer arranged at an outermost side; the vacuum heat insulation layer is embedded with an adsorption box fixing layer; a corner end adsorption box, a central adsorption box and a side adsorption box are staggered and crossed arranged in an inner cavity of the vacuum heat insulation layer through the adsorption box fixing layer.