Evaluation of activated carbon for remediating benzene contamination: adsorption and oxidative regeneration

Journal of Hazardous Materials
Chenju Liang, Yan-Jyun Chen

Abstract

This study investigated the potential usage of activated carbon (AC) as a permeable reactive barrier material for the adsorption of benzene contaminant. Sodium persulfate (SPS) or pyrite (FeS(2)) activated SPS oxidation was used for the regeneration of spent AC. Results indicate that persulfate oxidation of AC caused a loss of electrons and a reduction in adsorptive capacity due to the formation of acidic functional groups on the AC. Concerning the reactants that can be used for oxidation of the benzene contaminants, SPS/FeS(2)/AC, as oppose to SPS/AC, can achieve benzene destruction in both the aqueous and the sorbed phases. Furthermore, regeneration of benzene spent AC by SPS or SPS/FeS(2) revealed that SPS oxidation resulted primarily in desorption of benzene over direct oxidation of AC sorbed benzene. In contrast, the SPS/FeS(2) system achieved complete oxidation of desorbed benzene in the aqueous phase while also oxidizing sorbed benzene. Results of re-adsorption show that oxidative regeneration recovered around 70% of the AC adsorption sites and the remaining capacity was mostly occupied by the residual benzene on the AC. This study demonstrates that SPS or FeS(2) activated SPS oxidation is an effective alternative method...Continue Reading

References

Feb 4, 1999·Journal of Colloid and Interface Science·I I Salame, T J Bandosz
Jul 19, 2005·Journal of Colloid and Interface Science·Francisco VillacañasJosé L Figueiredo
Nov 1, 2005·Journal of Colloid and Interface Science·Issa I Salame, Teresa J Bandosz
Feb 8, 2006·Journal of Hazardous Materials·Yuh-Shan Ho
Jul 31, 2007·The Science of the Total Environment·Roger MattaSerge Chiron
Jun 20, 2008·Journal of Hazardous Materials·Azam T Mohd DinAbdul L Ahmad
Aug 23, 2008·Water Research·Chenju LiangYan-Jyun Chen
Oct 3, 2008·Journal of Hazardous Materials·Chenju LiangKeng-Jung Chang
Oct 17, 2008·Chemosphere·Chenju LiangRama Mohan Kurakalva
Mar 7, 2009·Journal of Hazardous Materials·Chenju LiangWu-Hang Shin
Apr 9, 2009·Environmental Science & Technology·Eunsung Kan, Scott G Huling
Apr 17, 2009·Environmental Science & Technology·Ralph D LudwigChristopher J Weisener

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Citations

Jul 26, 2011·Journal of Hazardous Materials·Natalia G AsenjoRosa Menéndez
Feb 25, 2017·Journal of Environmental Management·Dimin FanTom Fox

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