| Title: | Time and space patterns of volatile organic compounds in a sewage treatment plant |
| Author(s): | Escalas A; Guadayol JM; Cortina M; Rivera J; Caixach J; |
| Address: | "Department of Chemical Engineering, Universitat Politecnica de Catalunya, Colom 1, 08222 Terrassa, Spain" |
| DOI: | 10.1016/S0043-1354(03)00336-1 |
| ISSN/ISBN: | 0043-1354 (Print) 0043-1354 (Linking) |
| Abstract: | "47 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 x 2(2) 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 microg x l(-1) at the plant influent, with a mass flow of 2231 kg x 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%" |
| Keywords: | "Environmental Monitoring Gas Chromatography-Mass Spectrometry Organic Chemicals/analysis Sewage/*chemistry Volatilization *Waste Disposal, Fluid Water Pollutants, Chemical/*analysis;" |
| Notes: | "MedlineEscalas, A Guadayol, J M Cortina, M Rivera, J Caixach, J eng England 2003/08/12 Water Res. 2003 Sep; 37(16):3913-20. doi: 10.1016/S0043-1354(03)00336-1" |
