| Title: | Fast online emission monitoring of volatile organic compounds (VOC) in wastewater and product streams (using stripping with direct steam injection) |
| Address: | "Competence Center Engineering & Maintenance, BASF SE, 67056 Ludwigshafen/Rhein, Germany. alexander.schocker@basf.com" |
| DOI: | 10.1007/s00216-011-5625-8 |
| ISSN/ISBN: | 1618-2650 (Electronic) 1618-2642 (Linking) |
| Abstract: | "Open-loop stripping analysis (also referred to as dynamic headspace) is a very flexible and robust technology for online monitoring of volatile organic compounds in wastewater or coolant. However, the quality and reliability of the analytical results depend strongly on the temperature during the stripping process. Hence, the careful and constant heating of the liquid phase inside the stripping column is a critical parameter. In addition, this stripping at high temperatures extends the spectrum of traceable organics to less volatile and more polar compounds with detection limits down to the ppm-level. This paper presents a novel and promising approach for fast, efficient, and constant heating by the direct injection of process steam into the strip medium. The performance of the system is demonstrated for temperatures up to 75 degrees C and traces of various hydrocarbons in water (e.g., tetrahydrofuran, methanol, 1-propanol, n-butanol, ethylbenzene)" |
| Keywords: | "Chemistry Techniques, Analytical/*methods *Online Systems *Temperature Volatile Organic Compounds/*analysis Volatilization Water Pollutants, Chemical/*chemistry;" |
| Notes: | "MedlineSchocker, Alexander Lissner, Bert eng Germany 2011/12/22 Anal Bioanal Chem. 2012 Mar; 402(8):2669-74. doi: 10.1007/s00216-011-5625-8. Epub 2011 Dec 21" |
