Title

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

Comments

Presented at International Conference On Environmental Systems, July 2004, Colorado Springs, CO, USA, Session: Biological Waste Processing & Microbial Processes

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.

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