Title

The Recovery of Water from Urine by Membrane Electrodialysis

Date

1963

Index Abstract

Not Available

Photo Quality

Complete

Report Number

AMRL TDR 63-30

Creator

Brown, Daniel L.

Lindstrom, Robert W.

Smith, J. D.

Corporate Author

Ionics Inc.

Laboratory

Biomedical Labotarory

Extent

56

PB Number

PB117096

Identifier

AD0407137

Access Rights

OTS

Distribution Classification

1

Contract

AF 33(657)-7710

DoD Project

6373

DoD Task

637304

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

None

Distribution Conflict

No

Cover Price

1.5

Abstract

A laboratory-scale experimental program was con ducted which clearly indicated the feasibility of membrane electrodialysis for recovering potable water from urine. Since electrodialysis removes electrolytes from urine, pretreatment techniques were investigated for the removal of non-electrolytes. These techniques were: charcoal adsorption, chemical oxidation, and enzymatic hydrolysis of urea to ammonium carbonate. A model of a urine reclamation system was built, comprised of two main processes: charcoal adsorption and electrodialysis. The system weighs 15 pounds, is less than one ft3 in size, and has a peak power requirement of 45 watts for 8 hours operation for the daily recovery of 3000 ml of potable water from urine. The daily energy requirement is 310 watt-hrs, including 160 watt-hrs for charcoal regeneration. Excellent quality water is recovered in yields of 92%.

Report Availability

Full text available

Date Issued

1963-04

Provenance

RAF Centre of Aviation Medicine

Type

report

Format

1 online resource