Gas chromatograph airMEDOR

laboratoryelectrochemicalgas/liquid reaction detector

The Problem : at the entrance of the waste water plants, where the waste water arrives, strongly smelling and polluted air is captured and neutralised by a chemical cleaning process called ‘’Stripping’’. The correct amount of chemical products needed to neutralise the polluted air has to be calculated. The solution brought by Chromatotec with the airMEDOR system ⇒ At the arrival of the wastewater at the stripping area of the plant, the polluted air is captured and thereafter passed in a circuit that neutralises it. These odours are caused by bacteriological fermentation. Successive chemical cleanings in the deodorisation towers neutralise these odours. ⇒ The bad odours are in large part due to the transformation of sulphuric acid into H2S by the bacteria in the fermentation process. ⇒ Placed at the outlet of the stripping process, the airMEDOR measures the H2S concentrations and pilots the adjunction of calcium nitrate, that the bacteria consume instead of the sulphuric acid.