Fazaelipoor Mohammad Hassan
Chemical Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman, Jomhuri Avenue, Kerman, Iran.
J Hazard Mater. 2007 Sep 5;148(1-2):453-8. doi: 10.1016/j.jhazmat.2007.02.060. Epub 2007 Mar 3.
Biological air treatment systems have been widely under investigation in recent years. Inclusion of non-biodegradable organic solvents to these systems is a way to improve the biotic removal capacity of the systems. In this article the process of absorption and biodegradation of a hydrophobic organic compound in a two liquid phase stirred tank bioreactor has been modeled. Using the model it has been shown that the inclusion of an organic solvent is advantageous if certain conditions are met. Some simulation examples showed that the usefulness of adding an organic solvent to the system depends on kinetic parameters of biological reactions and mass transfer coefficients of pollutants and oxygen between the air and liquid phases. Since different factors influence the process, the usefulness of including an organic solvent to the system should be checked in each special case. The simple model presented in this article can help the prediction of the effect of amending a solvent to the bioreactor under a set of given conditions.
近年来，生物空气处理系统一直受到广泛研究。在这些系统中加入不可生物降解的有机溶剂是提高系统生物去除能力的一种方法。本文对两液相搅拌槽式生物反应器中疏水性有机化合物的吸收和生物降解过程进行了建模。利用该模型表明，在满足一定条件下加入有机溶剂是有利的。一些模拟实例表明，向系统中添加有机溶剂的有效性取决于生物反应的动力学参数以及污染物和氧气在气液相间的传质系数。由于不同因素影响该过程，在每种特殊情况下都应检查向系统中加入有机溶剂的有效性。本文提出的简单模型有助于预测在一组给定条件下向生物反应器中添加溶剂的效果。
