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Time and space patterns of volatile organic compounds in a sewage treatment plant

AutorEscalas, Antoni; Guadayol, Josep M.; Cortina Masana, Montserrat; Rivera Aranda, Josep; Caixach Gamisans, Josep
Palabras claveVOCs
Experimental design
Fecha de publicación2-ago-2003
CitaciónWater Research 37(16): 3913-3920 (2003)
Resumen47 regulated and non-regulated volatile organic compounds (VOCs) were characterised by closed-loop stripping analysis (CLSA) and high resolution gas chromatography coupled to mass spectrometry (HRGC/MS) in 28 aqueous samples from 4 sampling points along a sewage treatment plant in Manresa, Catalonia, Spain.
A 4×22 factorial design (16 samples) was first prepared for the sampling, and reinforced with 12 additional samples at the plant influent. The total analyte weighted mean concentration was 232 μg l−1 at the plant influent, with a mass flow of 2231 kg yr−1. Petroleum solvents and terpenic compounds accounted for 79% of the influent analyte concentration. VOC concentration in influent was clearly higher for most VOCs from 12 to 22 h (high organic load hours), and lower from 24 to 10 h (lower organic load). Differences between time bands were confirmed through t tests. Differences between weekdays and the weekend were not so clear, and could not be confirmed through t tests. VOC concentrations along the plant are discussed. Overall analyte removal in the plant was 89%.
Descripción8 pages, 1 figure, 5 tables.-- PMID: 12909110 [PubMed].-- Printed version published Sep 2003.
Versión del editorhttp://dx.doi.org/10.1016/S0043-1354(03)00336-1
ISSN0043-1354 (Print)
1879-2448 (Online)
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