Systems and methods are disclosed for extracting freshwater from
atmospheric humidity in extremely
hot and humid climates and supplying freshwater to a small group of people, a building, a farm, or forestation area. The freshwater is treated to provide drinking water by disinfecting to eliminate microorganisms and
filtration to remove suspended
particulates from air,
erosion or
corrosion products, and disinfected waste. Compact units provide drinking water for individuals, passengers in cars, vans, trucks, or recreational boats, or crewmembers on a seagoing cargo ship whether from
atmospheric humidity or from
moisture-laden gases. Furthermore, systems are disclosed for the ample supply of freshwater with minimal treatment for small- to large-sized buildings in a manner that alleviates the
heat load on buildings. Collection of freshwater from hot humid
ambient air is also provided for other uses, such as
irrigation and farm animal drinking. Various methods are used for condensation of
water vapor suspended in the air as alternative to conventional
refrigeration cycles using CFC refrigerants. Devices are disclosed using naturally occurring brackish cold water, circulation of cooling
water cooled by
thermoelectric cooling or thermoacoustic
refrigeration as well as evaporative cooling and
transpiration cooling. Water produced by the systems may flow under gravitational forces entirely or with the assistance of boasting pumps.