Downstream bioprocessing of CS2-polluted emissions: innovative use of a black slag in mixed biofilters
Prenafeta-Boldú, Francesc Xavier
MetadataShow full item record
Black slag from an electric arc furnace (EAF) was used as an innovative inorganic co-packing material in organic biofilters for the biodegradation of CS2-polluted gases. The effect on biofilter performance of increasing the inlet concentration (IC) and reducing the empty bed residence time (EBRT) was
evaluated in three biofilters packed with different bed configurations. Macrokinetic modelling pointed to a lower CS2 biodegradation activity related to the presence of the slag. Nevertheless, the presence of black slag improved long-term biofilter performance, and the maximum elimination capacity (43 g m−3 h−1) was recorded in the biofilter packed with a mixed support. Molecular profiling of the eubacterial populations demonstrated the ubiquitous presence of the potential CS2 degrading species Thiomonas intermedia. Co-packing with EAF slag also prompted the development of a more complex microbial community encompassing halophilic species involved in the metabolism of sulphur compounds (i.e. Thiohalophilus spp. and Paracoccus thiocyanatus).
Is part ofChemical Engineering Science, 2015, vol. 131, núm. 28, p. 304-312
Showing items related by title, author, creator and subject.
Microbial community dynamics in two-chambered microbial fuell cells: effect of different ion exchange membranes Sotres, Ana; Díaz-Marcos, Jordi; Guivernau, Miriam; Illa i Alibés, Josep; Magrí Aloy, Albert; Prenafeta-Boldú, Francesc Xavier; Bonmatí Blasi, August; Viñas, Marc (Society of Chemical IndustryJohn Wiley & Sons, 2015)The utilization of different kinds of ion exchange membrane is a common practice in bioelectrochemical systems such as two-chambered microbial fuel cells (MFCs). However, little is known about the effect of membrane materials ...
Influence of synthetic packing materials on the gas dispersion and biodegradation kinetics in fungal air biofilters Prenafeta-Boldú, Francesc Xavier; Illa i Alibés, Josep; Groenestijn, Johan W. van; Flotats i Ripoll, Xavier (Springer, 2008)The biodegradation of toluene was studied in two lab-scale air biofilters operated in parallel, packed respec- tively with perlite granules (PEG) and polyurethane foam cubes (PUC) and inoculated with the same ...
Illa i Alibés, Josep; Prenafeta-Boldú, Francesc Xavier; Bonmatí Blasi, August; Flotats i Ripoll, Xavier (Elsevier, 2012)The settlement of organic matter during composting was measured at different levels during the active biodegradation phase in forced-aerated static reactors loaded with different mixtures of organic wastes. The temperature ...