Mesure de la turbidité
Mesure de turbidité
Dans l'eau de la piscine, la turbidité est une indication de l'acidité de l'eau. Efficacité du système de filtration et des produits de nettoyage. Dans l'eau potable, il indique une éventuelle croissance bactérienne. Dans les stations d'épuration des eaux usées la turbidité est un indicateur de qualité les procédures de nettoyage.
The Science Behind Your Turbidity Measurements
The Lovibond® PTV Series of Process Turbidimeters offers four different incident light sources. These different light sources were needed to meet regulatory requirements, which differ across the world. The PTV 1000 WL, PTV 2000 and PTV 6000 variations are approved by the USEPA under the Safe Drinking Water Act and are applicable for use in reporting filter effluent and combined filter effluent turbidities from drinking water plants. The PTV 1000 IR version complies with the ISO 7027 design criteria for turbidity measurement below 40 FNU3. With respect to these three versions of turbidimeters, it is only the light source that differs. Although these four light sources are regulatory approved, they are expected to deliver slightly different results. These differences and their causes will be discussed.
Applications of continuous turbidity measurement in drinking water processing
The monitoring of the indicator parameter turbidity with a limit value of 1 NTU / FNU is one of the legal obligations of the operator of a waterworks and is considered to be complied with if this value is maintained at the waterworks exit. In-house laboratories usually take on these tasks and report the results to the responsible supervisory authority according to a defined sampling plan.