Abstract:
:Polybrominated diphenyl ethers (PBDEs) are a new class of environmental pollutants which easily accumulated in the soil, especially at e-waste sites. However, knowledge about their phytotoxicity after degradation is not well understood. Nano zero valent iron (nZVI) immobilized in mesoporous silica microspheres covered with FeOOH (SiO2@FeOOH@Fe) synthesized in this study was utilized to remove decabromodiphenyl ether (BDE209) from soil. Results revealed that the removal efficiency of BDE209 can be achieved 78% within 120 h using a dosage of 0.165 g g(-1) and a pH of 5.42. Furthermore, the removal efficiency enhanced with increasing soil moisture content and the decreasing of initial BDE209 concentration. Phytotoxicity assays (biomass and germination rate, shoots and roots elongation of Chinese cabbage) were carried out to provide a preliminary risk assessment of treated soil for the application of SiO2@FeOOH@Fe.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Xie Y,Cheng W,Tsang PE,Fang Zdoi
10.1016/j.jenvman.2015.10.042subject
Has Abstractpub_date
2016-01-15 00:00:00pages
478-83eissn
0301-4797issn
1095-8630pii
S0301-4797(15)30340-6journal_volume
166pub_type
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