Advanced Development of the In-Flight Ammonia Monitor Prototype

Paper #:
  • 951687

Published:
  • 1995-07-01
Citation:
Akse, J., Thompson, J., Sauer, R., and Aten, L., "Advanced Development of the In-Flight Ammonia Monitor Prototype," SAE Technical Paper 951687, 1995, https://doi.org/10.4271/951687.
Pages:
16
Abstract:
A computer interfaced instrument designed to quantify ammonia and other nitrogenous species that are important regenerative life support water quality parameters is described in this paper. Measurements can be made either discretely by Flow Injection Analysis (FIA) or continuously using a split stream from a process flow. The monitor exhibits a predictable quadratic response for ammonia injections between 10 μg/L to 20 mg/L with a response time less than six minutes. A full description of the ammonia monitor's response to a variety of challenge solutions including real sewage treatment plant effluent is given. In addition, the response time characteristics, the effects of temperature, and interferences are described.
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