Apparatus and method for measuring NOx and nitrification/dentifrication rates in biochemical process

摘要

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