1. John Graymore Chemical Laboratories, Department of Environmental Sciences, Plymouth Polytechnic. Drake Circus, Plymouth, Devon England;2. South West Water, Civic Centre, Plymouth, Devon, England
Abstract:
A reliable method for the quantitative assessment of water mixing in sewage works is presented. Using a rapid visible-spectroscopic technique to assay Bromophenol Blue, both laboratory and in situ adsorption/degradation studies are presented which confirm that this dye may be used quantitatively in tracer experiments.