Abstract
A novel clean-up technology to remove polycyclic aromatic hydrocarbons (PAHs) from solid samples by magnetic separation using a composite containing iron powder as a magnetic material and activated carbon as an adsorbent in the freeze-dried calcium alginate matrix (Fe-AC-alg) has been developed. The Fe-AC-alg powder (50 mg), mixed with 1.0 g of glass beads having 12 kinds of adsorbed PAHs, was shaken without adding solvents at 300 rpm. After shaking, the Fe-AC-alg powder was separated using a permanent magnet. The quantity of the PAHs extracted from the glass beads treated by this method was determined. The removal (%) of the PAHs was over 96%. A roadside soil sample (10 g) was mixed with the Fe-AC-alg (1.0 g) for 2 weeks. The removal (%) of benzo[a]pyrene from the sample by the presented technique was 78%. The toxic equivalent concentration (Σ BaPeq) for the sample decreased from 0.27 to 0.10 mg kg−1 by this method. The presented method is very simple, economical, and environment-friendly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
