Abatement of styrene waste gas emission by biofilter and biotrickling filter: comparison of packing materials and inoculation procedures

Abstract

The removal of styrene was studied using 2 biofilters packed with peat and coconut fibre (BF1-P and BF2-C, respectively) and 1 biotrickling filter (BTF) packed with plastic rings. Two inoculation procedures were applied: an enriched culture with strain

Biological technologies for the treatment of atmospheric pollutants

“…Activated sludge from wastewater plants is commonly employed because it contains a large variety of rugged organisms with the potential ability to degrade a wide variety of pollutants [77,78]. From an industrial point of view, the choice of activated sludge as an inoculum presents also advantages due to the ease of implementation and low operational costs [26]. Soil and compost bed bioreactors may be considered as interesting inoculum sources since they also exhibit high phylogenetic and functional diversities [79].…”

“…Industrial solvent used in the production of inks, resins, adhesives and dyes [25] Styrene Hazardous air pollutant emitted predominantly from industries producing polystyrene, styrene copolymers and polyester [26] Isobutanol Organic solved used as plasticiser and building block for plastics, textiles and clothing [27] α-Pinene Volatile compound typically found in waste gases from wood-related industries. Commonly used in the chemical industry and perfumery [28,29] Methane Greenhouse gas with global warming potential 21 times higher than that of CO 2 .…”

Experiments and modelling of a biotrickling filter (BTF) for removal of styrene from airstreams

“…28 The kinetics of the growth of the bacterial strain Pseudomonas sp. E-93486 in the presence of styrene as the sole carbon and wileyonlinelibrary.com/jctb [7] =45s [7] =60s [9] =70s + [10] =60s [13] =60s [16] urea =60s [16] nitrate =60s [19] =40.2s [46] =60s this work =62s this work =41s energy source was determined in batch and continuous cultures by G aszczak et al 43 Regarding the inhibitory effect of styrene on the microbial growth rate, the kinetic model of Haldane was used to describe E-93486 strain growth on styrene. In the experiments performed in a pilot-scale BTF the concentration of styrene in the gas entering the reactor did not exceed 1.1 g m −3 .…”

“…In the literature one can find numerous studies whose authors examined the process of biopurification of air from styrene in laboratory‐scale biofilters (BF) and biotrickling filters (BTF) (recently). Pilot studies on the removal of styrene from the air are still scarce thus making its industrial implementation difficult.…”

“…5 Moreover styrene, a moderately hydrophobic compound, is readily biodegradable and can be used as a model substance for studying microbial degradation of aromatic compounds. 2 In the literature one can find numerous studies whose authors examined the process of biopurification of air from styrene in laboratory-scale biofilters (BF) and biotrickling filters (BTF) (recently [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Pilot studies on the removal of styrene from the air are still scarce 6,13,20 thus making its industrial implementation difficult.…”