Portal de Periódicos da CAPES

Continuous measurement of dissolved sulfide in sewer systems

2008; Pergamon Press; Volume: 57; Issue: 3 Linguagem: Inglês

10.2166/wst.2008.132

1996-9732

L. Sutherland‐Stacey, Shaun Corrie, A. L. Neethling, Ian Johnson, Oriol Gutiérrez, R. Dexter, Zhiguo Yuan, Jürg Keller, Geoff Hamilton,

Advanced Chemical Sensor Technologies

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.