Lyophilization for water recovery - Lyophilization Books

Title(s): Lyophilization for water recovery / Eric Litwiller ... [et al.].
Author(s): Litwiller, Eric; Reinhard, Martin; Flynn, Michael; Fisher, John; International Conference on Environmental Systems, (31st : 2001 : Orlando, Fla.)
NASA Affiliation: Department of Civil and Environmental Engineering, Stanford University, USA.
Investigator(s): Fisher, John, NASA Center: ARC.
Publisher: Warrendale, PA : SAE International, c2001.
Series: SAE technical paper series, 2001-01-2348

Description: [13] p. : ill.
Language: English
Summary: An energy-efficient lyophilization technique is being developed to recover water from highly contaminated spacecraft waste streams. In the lyophilization process, water in an aqueous waste is frozen and then sublimed, separating the waste into a dried solid material and liquid water. This technology is ideally suited to applications such as the Mars Reference Mission, where water recovery rates approaching 100% are desirable but production of CO2 is not. Candidate wastes include feces, concentrated brines from water processors, and other solid wastes that contain water. To operate in microgravity, and to minimize power consumption, thermoelectric heat pumps can be used in place of traditional fluid cycle heat pumps. A mathematical model of a thermoelectric lyophilizer is described and used to generate energy use and processing rate estimates.

Other Subject(s): NASA Discipline Life Support Systems
NASA Center: ARC

Publication Type(s): Technical Report

Notes: Caption title.
Available from SAE, Customer Sales and Satisfaction Department, 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA. Telephone: (724) 776-4970.
Paper presented at the 31st International Conference on Environmental Systems, Orlando, Fla., July 9-12, 2001.
Grant: NASA NCC2-1175.
Includes bibliographical references.
22 ref.

Report Number: NASA 00029290
NLM ID: 101178753 [Book]