title: Toluene biofiltration enhanced by ryegrass.
abstract: Toluene biofiltration by microorganisms (an unplanted treatment) and by the combination of ryegrass (Lolium perenne L.) and microorganisms (a planted treatment) was investigated in this study. The results showed that toluene was completely removed by the unplanted and the planted biofilters in less than 0.2 g m⁻³ inlet toluene concentration. Toluene removal capacity for the planted biofilter was significantly higher than that for the unplanted biofilter in the range of 0.2-0.5 g m⁻³ inlet toluene concentration. This study revealed a significant (p < 0.01) increase in the microbial activity in the planted biofilter in comparison with the unplanted biofilter, indicating that ryegrass growing in a biofilter would significantly (p < 0.05) enhance toluene biodegradation.
authors: Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. xuzj@mail.buct.edu.cn
authors: Zhongjun
authors: Z
authors: Xu
authors: Meng
authors: M
authors: Wu
authors: Yanyun
authors: Y
authors: He
mesh_terms: D001673:Biodegradation, Environmental; D005374:Filtration / Q000379:methods*; D008129:Lolium / Q000378:metabolism*; D014050:Toluene / Q000302:isolation & purification*
chemical_list: D014050:Toluene