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Measuring Chloride in Effluent Flowing from a Soil Column¹

ABSTRACT

An inexpensive flow cell and combination chloride electrode system is described for continuously recording the chloride concentration in effluent flowing from a soil column. The response was observed to be sufficiently fast for monitoring effluent at flow rates normally encountered in column studies of soils. Break-through curves for three different volume "slugs" of chloride solution displaced through a column of glass beads were in close agreement with corresponding breakthrough curves obtained by argeniometric titration of aliquots collected from the same effluent.

¹ Contribution from Soil Science Department, University of Florida. Research supported in part by the US Department of the Interior as Florida Water Resources Res. Center Project A013-FLA. Published as Paper no. 4222, Journal Series, Florida Exp. Sta.

² Assistant Professor (soil physics) and Graduate Research Assistant, respectively, Soil Science Dep., University of Florida, Gainesville, Fla. 32601.

Received for publication November 29, 1971. Accepted for publication December 6, 1971.