Investigations into Water Recovery from Solid Wastes using a Microwave Solid Waste Stabilization and Water Recovery System

Kanapathipillai Wignarajah; Ric Alba; John W. Fisher; John A. Hogan; Tom Fox

doi:10.4271/2009-01-2341

2009-07-12

Investigations into Water Recovery from Solid Wastes using a Microwave Solid Waste Stabilization and Water Recovery System 2009-01-2341

A microwave powered solid waste stabilization and water recovery prototype was delivered to Ames Research Center through an SBIR Phase II contract awarded to Umpqua Research Company. The system uses a container capable of holding 5.7 dm³ volume of waste. The microwave power can be varied to operate either at full power (130 W) or in a variable mode from 0% and 100%.

Experiments were conducted with different types of wastes (wet cloth, simulated feces/diarrheal wastes, wet trash and brine) at different levels of moisture content and dried under varying microwave power supply. This paper presents the experimental data. The results provide valuable insight into the different operation modes under which the prototype can be used to recover water from the wastes in a space environment. Further investigations and testing of the prototype are recommended. Equivalent System Mass (ESM) analysis and performance parameters of the prototype in its current configuration are reported and recommendations for improvements are also made.

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Investigations into Water Recovery from Solid Wastes using a Microwave Solid Waste Stabilization and Water Recovery System 2009-01-2341

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