Patent ID: 6143246
Filing Date: 2000-11-07
Classification: G01N,Y10T

Abstract:
Apparatus for measuring ammonia in fluids comprising:a fluid sample container having a fluid flow opening immersed in a fluid supply undergoing either nitrification or denitrification;an ammonia probe positioned to detect ammonia in samples in said container;a pH adjustment supply connected to said container;an ammonia adjustment supply connected to said container;an ammonia analyzer connected to said ammonia probe and adapted to determine changes in the quantity of ammonia in said samples;a controller connected to 1) said pH adjustment supply to introduce pH adjustment solution into said container, 2) said ammonia adjustment supply to introduce ammonia adjustment solution into said container to periodically calibrate said ammonia probe, 3) said container to introduce samples into and remove samples from said container at selected time intervals, and 4) said pH analyzer and said ammonia analyzer to measure ammonia in said samples.