title: Performance of a styrene-degrading biofilter inoculated with Pseudomonas sp. SR-5.
abstract: Styrene removal was studied for 3 months in a laboratory-scale biofilter packed with a mixed packing material of peat and ceramic at a ratio of 1 to 1 on a dry-weight basis and inoculated with Pseudomonas sp. SR-5. More than 90% removal efficiency (RE) was attained at 1-140 g/m3/h styrene loads under nitrogen-source limitation. When RE decreased to 70% after 30 d with an increase in styrene load, readdition of SR-5 and washing of the filter packing material restored the RE to more than 90% by maintaining the population of SR-5 at 1-10% of the total cell number. The maximum elimination capacity (EC) by kinetic analysis was estimated to be 290 g/m3/h. High conversion of the removed styrene carbon to CO2, and significantly small production of cell mass from the removed carbon were confirmed.
authors.affiliation: Chemical Resources Laboratory, Tokyo Institute of Technology, R1-29-4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Jong Hee
authors.initials: JH
authors.lastname: Jang
authors.forename: Mitsuyo
authors.initials: M
authors.lastname: Hirai
authors.forename: Makoto
authors.initials: M
authors.lastname: Shoda
mesh_terms: D001673:Biodegradation, Environmental; D005374:Filtration / Q000379:methods; D007220:Industrial Waste; D007700:Kinetics; D011549:Pseudomonas / Q000378:metabolism*; D020058:Styrene / Q000378:metabolism*
chemical_list: D007220:Industrial Waste; D020058:Styrene