Chemical speciation, mobility and phyto-accessibility of heavy metals in fly ash and slag from combustion of pelletized municipal sewage sludge.

@article{Xiao2015ChemicalSM,
  title={Chemical speciation, mobility and phyto-accessibility of heavy metals in fly ash and slag from combustion of pelletized municipal sewage sludge.},
  author={Zhihua Xiao and Xingzhong Yuan and Hui Li and Longbo Jiang and Lijian Leng and Xiaohong Chen and Guangming Zeng and Fei Li and Liang Cao},
  journal={The Science of the total environment},
  year={2015},
  volume={536},
  pages={774-783}
}
Combustion of pelletized municipal sewage sludge (MSS) can generate pestilent byproducts: fly ash and slag. Comparisons of heavy metal sequential extraction results among MSS, fly ash and slag showed that after combustion, the bioavailable heavy metal fractions (acid soluble/exchangeable, reducible and oxidizable fractions) were mostly transformed into the very stable heavy metal fractions (residual fractions). On the other hand, the results of toxicity characteristic leaching procedure (TCLP… CONTINUE READING

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