id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-5289	Frechen, F.-B.; Romaker, J.; Giebel, S.	Controlling Chemical Dosing into Sewers for Odour and Corrosion Abatement	2014	6	.htm	application/pdf	2693	100	50	Here, it is necessary to measure in analogy to the OEC measurement method, thus an electronic nose has to be used to determine the “odorants concentration in the liquid in ouE/m3 liquid” 2.2 Measurement device hardware – the sulphide and odour measurement unit SOU As mentioned, liquid has to be withdrawn from the sewer and has to be analyzed by an automated device that is able to perform sulphide and OEC measurement in order to deliver relevant quality parameters for the intended closed loop control strategy. One is dedicated for sulphide measurement in analogy with DIN 38409-29 (2003), thus lowering pH-value of the sample from the sewer, and H2Sg in the off-gas of this stripping reactor is the responsible signal and is converted into “sulphide in liquid concentration in mg/L”.	cache/cet-5289.htm	txt/cet-5289.txt