Lalanne Franck, Malhautier Luc, Roux Jean-Claude, Fanlo Jean-Louis
Ecole des Mines d'Alès, Laboratoire Génie de l'Environnement Industriel, 6, Avenue de Clavières, 30319 Alès Cedex, France.
Bioresour Technol. 2008 Apr;99(6):1699-707. doi: 10.1016/j.biortech.2007.04.006. Epub 2007 May 21.
A semi-industrial bioscrubber was developed to treat a complex mixture of VOCs: oxygenated, aromatic and chlorinated compounds. In order to optimize the VOCs mass transfer, an original washing agent made up of water and cutting oil was tested, and the impact of this washing agent on bioscrubbing performances was investigated. The results obtained with a laboratory unit show that the addition of oil strongly increases the quantity of transferred aromatics. For these compounds, the apparent mass transfer coefficient k(L)a is lower than with water alone. In term of bioscrubbing performances, comparison of the results obtained with the water-oil mixture and water alone showed that the removal efficiency for aromatics is enhanced: from 12% to 36% (applied load of 852 g VOCs m(-3)h(-1)); the elimination of chlorinated compounds is slightly improved. The addition of oil does not seem to lead to any dysfunction of the microbial communities that metabolize the transferred compounds.
开发了一种半工业规模的生物洗涤器，用于处理挥发性有机化合物（VOCs）的复杂混合物：含氧化合物、芳香族化合物和氯化化合物。为了优化VOCs的传质，测试了一种由水和切削油组成的新型洗涤液，并研究了该洗涤液对生物洗涤性能的影响。实验室装置获得的结果表明，添加油显著增加了转移的芳香族化合物的量。对于这些化合物，表观传质系数k(L)a低于仅用水时的值。就生物洗涤性能而言，水-油混合物和仅用水获得的结果比较表明，芳香族化合物的去除效率提高了：从12%提高到36%（施加负荷为852 g VOCs m(-3)h(-1)）；氯化化合物的去除略有改善。添加油似乎不会导致代谢转移化合物的微生物群落出现任何功能障碍。
