| Title: | Efficiency of biological activator formulated material (BAFM) for volatile organic compounds removal--preliminary batch culture tests with activated sludge |
| Author(s): | Corre C; Couriol C; Amrane A; Dumont E; Andres Y; Le Cloirec P; |
| Address: | "Ecole Nationale Superieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du General Leclerc, CS 50837, 35708 Rennes Cedex 7, France" |
| DOI: | 10.1080/09593330.2011.641592 |
| ISSN/ISBN: | 0959-3330 (Print) 0959-3330 (Linking) |
| Abstract: | "During biological degradation, such as biofiltration of air loaded with volatile organic compounds, the pollutant is passed through a bed packed with a solid medium acting as a biofilm support. To improve microorganism nutritional equilibrium and hence to enhance the purification capacities, a Biological Activator Formulated Material (BAFM) was developed, which is a mixture of solid nutrients dissolving slowly in a liquid phase. This solid was previously validated on mineral pollutants: ammonia and hydrogen sulphide. To evaluate the efficiency of such a material for biodegradation of some organic compounds, a simple experiment using an activated sludge batch reactor was carried out. The pollutants (sodium benzoate, phenol, p-nitrophenol and 2-4-dichlorophenol) were in the concentration range 100 to 1200 mg L(-1). The positive impact of the formulated material was shown. The improvement of the degradation rates was in the range 10-30%. This was the consequence of the low dissolution of the nutrients incorporated during material formulation, followed by their consumption by the biomass, as shown for urea used as a nitrogen source. Owing to its twofold interest (mechanical resistance and nutritional supplementation), the Biological Activator Formulated Material seems to be a promising material. Its addition to organic or inorganic supports should be investigated to confirm its relevance for implementation in biofilters" |
| Keywords: | Air Pollutants/*metabolism Batch Cell Culture Techniques Biological Oxygen Demand Analysis Biomass Biotechnology/instrumentation/*methods Chlorophenols/metabolism Filtration/instrumentation/*methods Hydrogen-Ion Concentration Nitrophenols/metabolism Organ; |
| Notes: | "MedlineCorre, Charline Couriol, Catherine Amrane, Abdeltif Dumont, Eric Andres, Yves Le Cloirec, Pierre eng England 2012/09/20 Environ Technol. 2012 Jul-Aug; 33(13-15):1671-6. doi: 10.1080/09593330.2011.641592" |
