| Title: | Trimethylamine abatement in algal-bacterial photobioreactors |
| Author(s): | Pascual C; Akmirza I; Perez R; Arnaiz E; Munoz R; Lebrero R; |
| Address: | "Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina s/n, 47011, Valladolid, Spain. Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain. Department of Environmental Engineering, Gebze Technical University, 41400, Kocaeli, Turkey. Department of Chemical Engineering and Environmental Technology, University of Valladolid, Dr. Mergelina s/n, 47011, Valladolid, Spain. raquel.lebrero@iq.uva.es. Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain. raquel.lebrero@iq.uva.es" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-019-07369-z |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Trimethylamine (TMA) is an odorous volatile organic compound emitted by industries. Algal-based biotechnologies have been proven as a feasible alternative for wastewater treatment, although their application to abate polluted air emissions is still scarce. This work comparatively assessed the removal of TMA in a conventional bacterial bubble column bioreactor (BC) and a novel algal-bacterial bubble column photobioreactor (PBC). The PBC exhibited a superior TMA abatement performance compared to the conventional BC. In this sense, the BC reached a removal efficiency (RE) and an elimination capacity (EC) of 78% and 12.1 g TMA m(-3) h(-1), respectively, while the PBC achieved a RE of 97% and a EC of 16.0 g TMA m(-3).h(-1) at an empty bed residence time (EBRT) of 2 min and a TMA concentration ~500 mg m(-3). The outstanding performance of the PBC allowed to reduce the operating EBRT to 1.5 and 1 min while maintaining high REs of 98 and 94% and ECs of 21.2 and 28.1 g m(-3).h(-1), respectively. Moreover, the PBC improved the quality of the gas and liquid effluents discharged, showing a net CO(2) consumption and decreasing by ~ 30% the total nitrogen concentration in the liquid effluent via biomass assimilation. A high specialization of the bacterial community was observed in the PBC, Mumia and Aquamicrobium sp. being the most abundant genus within the main phyla identified. GraphicalAbstract" |
| Keywords: | Biomass Methylamines *Microalgae *Photobioreactors Wastewater Biodegradation Bubble column bioreactor Microalgae-bacteria Odor treatment Photobioreactor Trimethylamine; |
| Notes: | "MedlinePascual, Celia Akmirza, Ilker Perez, Rebeca Arnaiz, Esther Munoz, Raul Lebrero, Raquel eng Germany 2020/01/11 Environ Sci Pollut Res Int. 2020 Mar; 27(9):9028-9037. doi: 10.1007/s11356-019-07369-z. Epub 2020 Jan 9" |
