Simultaneous immobilization of Pb, Cd and As in soil by hybrid iron-, sulfate- and phosphate-based bio-nanocomposite: Effectiveness, long-term stability and bioavailablity/bioaccessibility evaluation

Chemosphere
Qi LiaoHaiying Wang

Abstract

Here, the bio-nanocomposite (n-HFP + n-HFS)@An was developed to simultaneously immobilize Pb, Cd and As in the severely contaminated soil. The immobilization rates of diethylenetriaminepentaacetic acid (DTPA)/decarbonate-extracted bioavailable Pb, Cd and As were 59.87%, 31.28% and 62.30%, and the immobilization rates of their water-soluble forms were 63.12%, 60.02% and 89.39%, respectively. Moreover, the ten-year acid rain simulated leaching assay showed that the maximum cumulative release contents of Pb, Cd and As in the treated soil samples were decreased by 2.94, 2.46 and 40.60 times, comparing to the un-treated ones. Additionally, the results of SBRC (Solubility Bioaccessibility Research Consortium) revealed that the bioaccessible rates of the three metals in intestinal phase were lower than in gastric phase, and both of them decreased with increasing the immobilization time. The gastric bioaccessibility of Pb, Cd and As had a higher correlation with the contents of water-soluble forms, while the intestinal bioaccessibility was more strongly positively associated with the bioavailable forms.

References

Oct 19, 2001·Journal of Hazardous Materials·Y M WangM F Shue
Nov 23, 2001·Environmental Science & Technology·K Lock, C R Janssen
Jan 25, 2003·Environmental Science & Technology·Ju-Yong KimKyoung-Woong Kim
Feb 13, 2009·Journal of Colloid and Interface Science·Tarun Kumar NaiyaSudip Kumar Das
Dec 1, 2010·Journal of Hazardous Materials·Euan SmithAlbert L Juhasz
Jul 1, 1994·Environmental Science & Technology·Q Y MaJ A Ryan
Feb 28, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Pradeep AlavaTom R Van de Wiele
Jun 21, 2013·Environmental Science and Pollution Research International·Yingping LiaoYangyang Wang
Jan 8, 2014·Journal of Hazardous Materials·Nanthi BolanKirk Scheckel
Mar 19, 2014·Journal of Hazardous Materials·Yan-Jun DuFei Jin
Jul 26, 2014·Environmental Science and Pollution Research International·Mehrnaz AshrafiFauziah Shahul Hamid
Sep 1, 2014·Environment International·Chang ZhangLiang Hu
Feb 11, 2015·Journal of Environmental Sciences (China)·Xiaojuan SuHongqing Hu
Apr 26, 2015·Environmental Science and Pollution Research International·Zhihui YangRuiyang Xiao
May 15, 2015·Environmental Monitoring and Assessment·Cécile DurandValérie Schwoebel
Dec 10, 2016·Environmental Science & Technology·Albert L JuhaszEuan Smith
Jan 4, 2019·Environmental Pollution·Yihan WuXiangke Wang
Jul 1, 2019·Journal of Colloid and Interface Science·Yubo YanNanthi Bolan
Nov 5, 2019·Analytica Chimica Acta·Ruiyu Ding, Grzegorz Lisak
Jul 6, 2020·Environmental Geochemistry and Health·Hyeop-Jo HanKyoung-Woong Kim

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