Removal of p-xylene with Pseudomonas sp. NBM21 in biofilter.
As a p-xylene (p-Xyl)-degrading microorganism, Pseudomonas sp. NBM21 was isolated from an activated sludge of a wastewater treatment plant. NBM21 degraded p-Xyl, m-xylene, benzene and toluene, but not o-xylene, ethylbenzene (Eb) and styrene. NBM21 was inoculated to a biofilter with Biosol as a packing material and p-Xyl removal was operated for 105 d under sterile and nonsterile conditions. The maximum elimination capacities for p-Xyl at higher than 90% removal efficiency were 160 g/m3/h and 150 g/m3/h under nonsterile and sterile conditions, respectively. A high load of Eb adversely affected to the removal of xylene.
Jeong
Euisoon
E
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Hirai
Mitsuyo
M
Shoda
Makoto
M
D000393:Air Pollutants / Q000302:isolation & purification* / Q000493:pharmacokinetics*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology; D018929:Cell Culture Techniques / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D011549:Pseudomonas / Q000378:metabolism*; D014462:Ultrafiltration / Q000295:instrumentation* / Q000379:methods; D014992:Xylenes / Q000302:isolation & purification* / Q000493:pharmacokinetics*
D000393:Air Pollutants; D014992:Xylenes; C031286:4-xylene