Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Water Recovery By Reiterative Freezing

Report Number: MRL TDR 62-14
Author: Beutel, Jack
Corporate Author: Honeywell Inc Minneapolis Minn
Laboratory: Life Support Systems Laboratory
Date of Publication: 1962-03
Pages: 75
Contract: AF 33(616)-8170
Project: 6373
Task: 637304
AD Number: AD0278833

Abstract:
A method of recovering potable water from urin by employing the differences in solute concentration of a liquid-ice phase system as a means of purification is discussed. This method is called reiterative freezing. A parameter of the solute concentration distribution, called the effective distribution coefficient, is defined; and a number of experimental conditions for which the effective attainable separation due to rate of freezing, agitation and direction of freezing with respect to the gravity direction is discussed. The effective distribution coeffiecients obtained for these experimental conditions are compared with the distribution coefficients obtained for these experimental conditions are compared with the distribution coefficients attainable under ideal conditions. The effect of freezing upon the distribution of micro-oragnisms is discussed. The energy requirements for the recovery of potable water from urine by various reiterative freezing schemes are calculated as a function of the yield and of the volume of liquid that must be frozen in order to recover a unit of volume of potable water containing less than 500 parts per million of solids. A comparison is made between these energy requirements and the enrgy requirements of a simpe distillation process.


Provenance:
Lockheed Martin Missiles & Fire Control
Download this report

(PDF, 1.54 MB, 75 pages)

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
The inside cover of this report indicates that it was released for public sale