Source water odor in one reservoir in hot and humid areas of southern China: occurrence, diagnosis and possible mitigation measures.

ABSTRACT: Background:Identifying typical odor-causing compounds is essential for odor problem control in drinking water. In this study, aiming at a major water source reservoir in hot and humid areas in southern China, which encountered seasonable odor problems in recent years, an integrated approach including comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC?×?GC-TOFMS), flavor profile analysis (FPA) and quantitative real-time polymerase chain reaction (qPCR) was adopted to investigate the odor occurrence. Results:The results indicated that earthy-musty odor is blamed to the seasonable odor problems, and it is consistent with the complaints results from consumers. Fifty-four typical odor compounds were investigated in the reservoir and twelve were detected, of which, 2-methylisoborneol (2-MIB) was significantly increased during the odor event. Pseudanabaena sp. is the dominant species in the reservoir, which can be further represented by the number of mic gene with qPCR method (R 2?=?0.746, P?

SUBMITTER: Rong C 

PROVIDER: S-EPMC6267717 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature