Sulfides are particularly problematic in the sewage industry. Hydrogen sulfide causes corrosion of concrete infrastructure, is dangerous at high concentrations and is foul smelling at low concentrations. Despite the importance of sulfide monitoring there is no commercially available system to quantify sulfide in waste water. In this article we report on our use of an in situ spectrometer to quantify bisulfide in waste water and additional analysis with a pH probe to calculate total dissolved sulfide. Our results show it is possible to use existing commercially available and field proven sensors to measure sulfide to mg/l levels continuously with little operator intervention and no sample preparation.
Continuous measurement of dissolved sulfide in sewer systems
L. Sutherland-Stacey, S. Corrie, A. Neethling, I. Johnson, O. Gutierrez, R. Dexter, Z. Yuan, J. Keller, G. Hamilton; Continuous measurement of dissolved sulfide in sewer systems. Water Sci Technol 1 February 2008; 57 (3): 375–381. doi: https://doi.org/10.2166/wst.2008.132
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