| Title: | Removal of acetone from air emissions by biotrickling filters: providing solutions from laboratory to full-scale |
| Author(s): | San-Valero P; Gabaldon C; Alvarez-Hornos FJ; Izquierdo M; Martinez-Soria V; |
| Address: | "a Research Group GI2AM, Department of Chemical Engineering , Universitat de Valencia , Burjassot , Spain" |
| Journal Title: | J Environ Sci Health A Tox Hazard Subst Environ Eng |
| DOI: | 10.1080/10934529.2018.1496552 |
| ISSN/ISBN: | 1532-4117 (Electronic) 1093-4529 (Linking) |
| Abstract: | "A full-scale biotrickling filter (BTF) treating acetone air emissions of wood-coating activities showed difficulties to achieve outlet concentrations lower than 125 mg C m(-3), especially for high inlet concentrations and oscillating emissions. To solve this problem, a laboratory investigation on acetone removal was carried out simulating typical industrial conditions: discontinuous and variable inlet concentrations and intermittent spraying. The results were evaluated in terms of removal efficiency and outlet gas emission pattern. Industrial emissions and operational protocols were simulated: inlet load up to 70 g C m(-3) h(-1) during 2 cycles of 4 h per day and intermittent trickling of 15 min per hour. The outlet gas stream of the pollutant was affected by intermittent spraying, causing a fugitive emission of pollutant. Complete removal efficiency was obtained during non-spraying. Average removal efficiencies higher than 85% were obtained, showing the feasibility of BTF to treat acetone. The outlet gas stream showed a clear dependence on the pH of the trickling liquid, decreasing the removal at pH < 5.5. Thus, a proper control of alkalinity, with regular NaHCO(3) addition, was required for successful operation. The laboratory findings were fruitfully transferred to the industry, and the removal of acetone by full-scale BTF was improved" |
| Keywords: | Acetone/*isolation & purification *Air Filters Air Pollutants/isolation & purification Bioreactors Equipment Design *Filtration/instrumentation/methods Laboratories Technology Transfer *Vehicle Emissions/prevention & control Volatile Organic Compounds/iso; |
| Notes: | "MedlineSan-Valero, Pau Gabaldon, Carmen Alvarez-Hornos, Francisco Javier Izquierdo, Marta Martinez-Soria, Vicente eng Evaluation Study England 2018/09/08 J Environ Sci Health A Tox Hazard Subst Environ Eng. 2019; 54(1):1-8. doi: 10.1080/10934529.2018.1496552. Epub 2018 Sep 7" |
