Nitrogen Recovery during Solid Waste Treatment in Advanced Life Support
Abstract
In the solid waste treatment system of the new NSCORT center funded by NASA to investigate Advanced Life Support (ALS) systems design, microbiological uptake and the fluxes of various forms of nitrogen will be balanced and recycled. The objective of this research project is to effectively treat ammonium-rich scrubbed off-gas wastewater from the Sequential Thermophilic Aerobic Reactor (STAR) operation (on the order of 1000 mg/L of ammonium as nitrogen). The selectivity of four zeolites as ion exchange media has been evaluated in batch reactors. Six more zeolites will be assessed and column experiments will be performed on all ten samples with both synthetic feed and wastewater from STAR operation. Chabazite has been found to have a larger cation exchange capacity than three other forms of clinoptilolite already analyzed. All of the zeolites evaluated thus far are modeled well by the Freundlich isotherm model.
Description:6 pages
Date of this Version
July 2004
Identifier
ALS-NSCORT:p8
Publisher Identifier:
SAE Document Number: 2004-01-2514
Publisher
SAE International
ALS NSCORT Project Number
Project 2: Nitrogen Cycling in Advanced Life Support
Project Lead
Charles Glass
Language
English
ALS NSCORT Series
Published Materials
Administrative Contact
Dave Kotterman, dkotter@purdue.edu
Rights
Copyright 2004 SAE International. For additional information please visit the intellectual property section of the publisher's website: http://www.sae.org/about/intelproperty/ or the publisher's home page at: http://www.sae.org
Access
This article is not available through e-pubs. To purchase a copy of this article visit: http://www.sae.org/technical/papers/2004-01-2514. This article is available on microfiche at Purdue University's Engineering Library.
Comments
Presented at International Conference On Environmental Systems, July 2004, Colorado Springs, CO, USA, Session: Biological Waste Processing & Microbial Processes