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IN SITU MEASUREMENT OF NITRATE CONCENTRATION USING TIME DOMAIN REFLECTOMETRY

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:   No Citation available.
Authors:   M Krishnapillai, R Sri Ranjan
Keywords:   nitrate contamination, TDR, electrical conductivity, non-destructive measurement

Nitrates when found in excess in the groundwater, is a health hazard. Nitrates can easily be transported by groundwater movement and may eventually reach aquifers located far away from the contamination location. It is important to monitor the nitrate movement in the groundwater to predict the extent of nitrate contamination. Traditionally, nitrate movement is monitored by sampling groundwater and analyzing it in the laboratory. This paper presents an in situ method to measure nitrate concentration in a laboratory flow experiment using time domain reflectometry data.

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