Physical/chemical, biological, and hybrid methods can be used in a space environment for processing wastes generated by a Closed Ecological Life Support System (CELSS). Two recycling scenarios are presented. They reflect differing emphases on and responses to the waste system formation rates and their composition, as well as indicate the required products from waste treatment that are needed in a life support system.
Document ID: 19910022474. Accession ID: 91N31788. NASA. Ames Research Center, Controlled Ecological Life Support Systems: CELSS '89 Workshop; p 245-263.