Abstract: A portable washbasin system for providing clean water for washing hands and maintaining appropriate hygiene, the system including a housing structure with an upper compartment and a lower compartment spaced apart from one another, and a sink supported on the housing structure between the upper and lower compartments. A water storage tank is housed in the upper compartment, where the sink receives water from the water storage tank and dispenses the water for use. The system further includes a water receptacle housed in the lower compartment for collecting wastewater from the sink for subsequent disposal.

Abstract: The disclosure relates to a thermosiphon system operable to consistently maintain the permafrost and active frost layer in a frozen condition to adequately support buildings and other structures. During cooler seasons, the thermosiphon system uses a passive refrigeration cycle to efficiently maintain the frozen layers using the cold air. When the air temperature rises during the warmer months, the system transitions into an active refrigeration mode that uses a refrigeration system to minimize thawing or degradation of the permafrost and active frost layers.

Abstract: The disclosure relates to a portable waste collection and sanitation system designed to handle liquid and solid waste, and while conserving water and minimizing odors. The sanitation system is also designed with modular components adapted for in-home installation, where the system can be quickly disassembled and relocated as needed, such as for moving the components to a new location based on environmental conditions.