| Title: | Comparative evaluation of a biotrickling filter and a tubular photobioreactor for the continuous abatement of toluene |
| Author(s): | Oliva G; Angeles R; Rodriguez E; Turiel S; Naddeo V; Zarra T; Belgiorno V; Munoz R; Lebrero R; |
| Address: | "Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain; SEED - Sanitary Environmental Engineering Division, Department of Civil Engineering, University of Salerno, via Giovanni Paolo II, Fisciano, SA, Italy. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain. Department of Biodiversity and Environmental Management, University of Leon, 24071 Leon, Spain. SEED - Sanitary Environmental Engineering Division, Department of Civil Engineering, University of Salerno, via Giovanni Paolo II, Fisciano, SA, Italy. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain. Electronic address: raquel.lebrero@iq.uva.es" |
| DOI: | 10.1016/j.jhazmat.2019.120860 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "The negative effects of volatile organic compounds (VOCs) on humans' health and the environment have boosted the enforcement of regulations, resulting in the need of effective and environmentally friendly off-gas treatment technologies. In this work, the synergism between microalgae and bacteria was investigated as a sustainable platform to enhance the biological degradation of toluene, herein selected as a model VOC. An innovative algal-bacterial tubular photobioreactor (TPBR) was systematically compared with a conventional biotrickling filter (BTF). The BTF supported average removal efficiencies close to those obtained in the TPBR (86?ª++/-?ª+9% and 88?ª++/-?ª+4%, respectively) at the highest inlet load ( approximately 23?ª+g?ª+m(3) ?ª+h(-1)) and lowest gas residence time (0.75?ª+min). However, the BTF was more sensitive towards the accumulation of secondary metabolites. In this regard, photosynthetic O(2) supplementation (resulting in dissolved oxygen concentrations of approximately 7.3?ª+mg O(2) L(-1)) and CO(2) consumption by microalgae (which reduced the impact of acidification) enhanced toluene abatement performance and process stability" |
| Keywords: | "Bacteria/genetics/metabolism Biodegradation, Environmental Carbon Dioxide/chemistry Filtration/*instrumentation Microalgae/genetics/metabolism *Photobioreactors RNA, Ribosomal, 16S/genetics Toluene/isolation & purification/*metabolism Volatile Organic Com;" |
| Notes: | "MedlineOliva, Giuseppina Angeles, Roxana Rodriguez, Elisa Turiel, Sara Naddeo, Vincenzo Zarra, Tiziano Belgiorno, Vincenzo Munoz, Raul Lebrero, Raquel eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2019/07/16 J Hazard Mater. 2019 Dec 15; 380:120860. doi: 10.1016/j.jhazmat.2019.120860. Epub 2019 Jul 2" |
