Occurrence of low- and high-chlorinated phenols in municipal sewage before and after passing through biological treatment plants.
Four biological treatment plants for municipal sewage, situated at different locations, were examined for their chlorophenol content and their ability to degrade these compounds. A routine method for the analysis of both low- and high-chlorinated phenols was developed, based on gas chromatography with electron-capture detection (GC-ECD). The method was evaluated by comparing the GC-ECD results with those obtained by combined gas chromatography-mass spectrometry with selected-ion monitoring of the molecular ions of the specific phenols. The total phenol content, determined by GC-ECD showed a good correlation with the phenol number, obtained by using the 4-aminoantipyrine method.
D055598:Chemical Phenomena; D002621:Chemistry; D002733:Chlorophenols / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry; D012722:Sewage / Q000032:analysis*; D012997:Solvents
D002733:Chlorophenols; D012722:Sewage; D012997:Solvents