Dynamic Mathematical Modelling of the Removal of Hydrophilic VOCs by Biotrickling Filters

International Journal of Environmental Research and Public Health

Pau San-Valero²  Josep M. Penya-roja²  F. Javier Álvarez-Hornos²  Paula Marzal²  Carmen Gabaldón¹ 

[1] Research Group GI²AM, Department of Chemical Engineering, University of Valencia, Avda. Universitat s/n, 46100 Burjassot, Spain;

关键词: biotrickling filtration;    air pollution control;    volatile organic compounds;    mathematical modelling;   

DOI  :  10.3390/ijerph120100746

来源: mdpi

【 摘 要 】

A mathematical model for the simulation of the removal of hydrophilic compounds using biotrickling filtration was developed. The model takes into account that biotrickling filters operate by using an intermittent spraying pattern. During spraying periods, a mobile liquid phase was considered, while during non-spraying periods, a stagnant liquid phase was considered. The model was calibrated and validated with data from laboratory- and industrial-scale biotrickling filters. The laboratory experiments exhibited peaks of pollutants in the outlet of the biotrickling filter during spraying periods, while during non-spraying periods, near complete removal of the pollutant was achieved. The gaseous outlet emissions in the industrial biotrickling filter showed a buffered pattern; no peaks associated with spraying or with instantaneous variations of the flow rate or inlet emissions were observed. The model, which includes the prediction of the dissolved carbon in the water tank, has been proven as a very useful tool in identifying the governing processes of biotrickling filtration.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.